text:
|Publication number
|Publication type
|Application number
|Publication date
|Feb 14, 2002
|Filing date
|Oct 2, 2001
|Priority date
|Dec 31, 1999
|Also published as
|Publication number
|Roland D. Hintzman, Christopher J. Bock, Richard B. Yori
|Original Assignee
|B.F. Goodrich Company
|Export Citation
|BiBTeX, EndNote, RefMan
|Referenced by (6), Classifications (23), Legal Events (3)
|External Links: USPTO, USPTO Assignment, Espacenet
[0001] This invention relates to a system for controlling the flow of pressurized fluids and more particularly to valve devices or mechanisms for use with high pressure gas release vessels or containers on an aircraft emergency escape slide and off-shore emergency escape slides or as valve mechanisms on high pressure vessels to eliminate potential catastrophic problems of high pressure gas release.
[0002] The inflatable escape slide and the pressure vessel along with its regulating valve system is stored adjacent to an egress door of an aircraft in a deflated condition. When necessary to evacuate the passengers and the crew members as quickly as possible, the deflated slide is deployed outwardly from the aircraft. As the slide is extended outwardly from the egress door, a lanyard is actuated to permit the escape slide to be pressurized from a pressurized pressure vessel or container and its regulatory valve.
[0003] The pressurized vessel or container and its valve system for safety reasons, must be constructed such that when inadvertently or by some accident such vessel is dropped, that the valves may sustain extensive damage without precipitating hazardous discharge of the stored gas. Under ordinary circumstance the rupture of the body of the regulating valves would cause an uncontrolled release of the pressurized gas or fluid and would cause the pressurized container to become self-propelled, thus putting any personnel or equipment close thereto in great danger. The escaping gases could propel the container or pressurized vessel at an alarming high velocity. One of the devices used to prevent these mishaps is a cage that encloses and protects the regulating valves. The cage prevents the separation of the valves from the pressurized container upon impact or inadvertent damage. The use of the cage adds extra weight to the escape slide system and since this is an aerospace application, the addition of weight is undesirable and should be avoided. In addition, the cage adds considerable volume to the system thus requiring the aircraft manufacturer to allot additional space on the aircraft for the auxiliary equipment. Further, the cage requires additional machining and welding which adds cost to the system.
[0004] The present invention eliminates the need for a cage and designs the valves with two portions: an upper portion that projects out of the container, a lower portion that is located within the body portion of the container that contains the high pressure fluid, and an integral safety valve that upon rupture of or any breaking of the upper portions of the valves will prevent the contents of the pressurized container from rapid escape or uncontrolled release. Such valves are lightweight in construction, compact, reliable and maintain a cost advantage over present structures.
[0005] A system for controlling with safety the transfer of pressurized fluids through valve mechanisms from a pressurized container at a lower controlled pressure to inflate an inflatable escape slide or otherwise provide a controlled measured flow. The container is mounted on the escape slide and has control and regulating valves, such as first and second valve mechanisms, secured thereto. The container has a necked portion to receive a nipple portion of the valve housing which contains the first and second valve mechanisms. The first valve mechanism is operative when actuated by suitable devices such as a lanyard to direct fluids at high pressures to the second valve mechanism whose function is to transfer the high pressure fluids at a lower controlled rate to the inflatable escape slide. A safety valve is operated in conjunction with the valve mechanisms to insure the delivery of the high pressure fluids as required by the actuation. The safety valve is located in the nipple portion of the valve housing so that in the event the valve housing, which contains the first valve mechanism and the second valve mechanism, is broken off by accident as by dropping the container, the high pressure fluids are blocked from leaving the container. This action prevents the uncontrolled release of the pressurized gas or fluid which would cause the pressurized container to become self propelled at dangerously high velocities.
[0006]FIG. 1 is a side elevation view of an escape slide deployed from the fuselage of an aircraft, illustrating the slide fully deployed with a pressurized container mounted on the underside of the slide;
[0007]FIG. 2 is a fragmentary bottom view of that portion of the escape slide taken on line 2-2 of FIG. 1 showing a pressurized fluid container located on the escape slide;
[0008]FIG. 3 is a side elevational view of a prior art container and valve mechanism with a portion broken away illustrating the container as falling and prior to impact with a hard surface;
[0009]FIG. 4 is a side elevational view of the prior art container illustrated in FIG. 3 after impact, with the valve mechanism broken off and the container being propelled by the escaping high pressure fluid;
[0010]FIG. 5 is a side elevational view of the present container and valve mechanism with a portion broken away illustrating the container as falling and prior to impact with a hard surface;
[0011]FIG. 6 is a side elevational view of the present invention illustrating the container and valve mechanism immediately after impact with a hard surface with the valve mechanism broken off;
[0012]FIG. 7 is a plan view of the valve housing containing the valve mechanisms embodying the invention mounted on a fluid container or bottle;
[0013]FIG. 8 is a sectional view taken along line 8-8 in FIG. 7 with parts being broken away;
[0014]FIG. 9 is a sectional view taken along line 9-9 in FIG. 7 with parts being broken away;
[0015]FIG. 10 is an enlarged view in perspective of a disc with a portion broken away;
[0016]FIG. 11 is an enlarged fragmentary view of a portion of the first valve mechanism and safety valve showing the central support member retracted with the disc in the burst condition showing the top portion of the safety valve and illustrating the high pressure fluid flowing through the opening in the disc towards the second valve mechanism where the fluid pressure is reduced for delivery to the escape slide;
[0017]FIG. 12 is a side elevational view similar to that in FIG. 8 with portions of the valve mechanism broken away illustrating the breaking away of the valve housing from the fluid container and the safety valve blocking the flow of high pressure fluid;
[0018]FIG. 13 is a sectional view of a second embodiment of a valve housing and valve mechanism with safety valve and first valve mechanism in the non-actuated condition;
[0019]FIG. 14 is a cross sectional view of the safety valve and nipple portion of the valve housing taken on line 14-14 of FIG. 13;
[0020]FIG. 15 is a plan view of the valve housing containing the valve mechanism taken on line 15-15 of FIG. 13;
[0021]FIG. 16 is a sectional view of the valve housing and valve mechanism similar to that shown in FIG. 13 but with the first valve mechanism and safety valve in the actuated condition;
[0022]FIG. 17 is a side elevational view similar to that in FIG. 13 with portions of the valve housing and valve mechanisms broken away illustrating the breaking away of the valve housing from the fluid container with the safety valve blocking the flow of high pressure fluid.
[0023] Referring to the drawings wherein like reference numerals designate like or corresponding parts throughout the several views, there is shown in FIGS. 1 and 2 an inflatable evacuation escape slide 1 shown in the fully inflated condition extending from a supporting structure such as an aircraft's fuselage 2. The escape slide 1 is a conventional slide that is deployed through an egress door 3 during a period of on ground emergency to provide for the rapid evacuation of passengers and crew members.
[0024] The escape slide 1 is releasably fastened to the fuselage 2 at its upper end adjacent the doorway or egress door 3 by a rod or girt bar 4, which girt bar is mounted on the fuselage 2 in brackets 4A or by suitable means fastened to the fuselage 2. A positioning tube may be employed and located between the escape slide and the fuselage 2 to aid in the proper positioning of the slide 1 during deployment, but since it forms no part of the invention no further description nor depiction is necessary.
[0025] The inflatable escape slide 1 includes a head end 5A and a toe end 5B. The entire escape slide 1 is fabricated from a fabric or other suitable material coated with an elastomer. The various inflatable parts are joined together with a suitable adhesive whereby the composite structure will preclude air flow from the various chambers or tubes during operation in the inflated state. The escape slide 1 is of a multi-tubular construction having at least a pair of longitudinally extending tubes or tube members 6A and 6B on the respective sides and suitable inflatable cross tubes 7. A sheet 8 with a slide surface is suitably fastened to the respective side tubes and cross tubes in a manner old and well known in the art.
[0026] A suitable source of high pressurized gas or fluid such as a container or bottle 12 of compressed gas is suitably mounted on the underside of the escape slide 1, which bottle 12 is connected via a valve housing 10 and suitable conduits to aspirators 9 located on the side portion of tubes 6A and 6B. Additional containers of compressed gas, aspirators and hoses or conduits or any combination of them may be used.
[0027] Referring to FIGS. 8 and 9, the valve housing 10 which may be a machined casting is shown as mounted on the high pressure container or metal bottle 12 for containing gases at pressures up to approximately 5,000 pounds per square inch (351.5 kilograms per square centimeter). A generally cylindrical fluid passageway or conduit 14 having an axis A-A is located in the valve housing 10 in communication with an inlet passage, passageway or opening 16 which extends through a nipple 18 connected to the bottle or container 12 by a threaded connection 20 between the nipple 18 and a necked portion or neck 22 of the bottle or container 12. An O-ring 24 may be positioned between the nipple 18 and neck 22 to provide a fluid tight seal between the bottle 12 and the valve housing 10. The lower end portion of nipple 18 terminates into an annular surface 11 having an inner tapered or beveled sealing surface or seal 13.
[0028] To seal the bottle 12 against the flow of high pressure gas through the inlet opening 16 a cartridge member or release cartridge 28 is positioned and secured to valve housing 10 in the fluid passageway or conduit 14 in the closed condition of the cartridge 28 as shown in FIG. 8 and to be described. A metallic plate member such as disc member or disc 30 shown in greater detail in FIGS. 10 and 11 is mounted over the lower end of the cartridge 28. The disc 30 has a cylindrical wall 32 and a circular base 34 with a central portion 36 and a peripheral edge 38 with a beveled configuration to conform with a conical surface defining a valve seat surface 40 in the fluid passageway or fluid conduit 14 adjacent the inlet passage 16. Preferably the disc 30 is of a soft metal such as aluminum (1100-0 alloy) so that when the cartridge 28 is pressed downwardly towards the inlet passage 16 the metal of the disc 30 will be crushed against the valve seat surface 40 providing a fluid tight seal. A recessed shoulder 37 (FIG. 11) is provided between the inlet passageway 16 and the conical valve seat surface 40. A longitudinally extending cylindrical safety valve 21 is located within the inlet passageway 16 and has an enlarged circumferentially extending upper edge portion 23 that is seated on the recessed shoulder 37. Safety valve 21 has a central bore 25. The lower end portion of safety valve 21 has a circular plug 27 suitably connected thereto. Plug 27 has an annular portion that defines a beveled seating surface 17 which is adapted to frictional seat on the beveled seating surface 13 of nipple 18 for a purpose to be described. A narrow vent, aperture or bore 29 extends through the plug 25 to communicate the main high pressure reservoir of container 12 with the central bore 25. The lower end portion of cylindrical safety valve 21 has a plurality of apertures 31 to communicate the reservoir of container 12 with the central bore 25 to permit the high pressure fluid from container 12 to be maintained on the bottom surface of circular base 34. Referring to FIG. 8, the cartridge 28 has a generally cylindrical wall 44 with a threaded connection 46 with the valve housing 10. Hexagonal flanges 48 may be provided which are adaptable for gripping by a wrench to rotate the cartridge 28 to move it towards or away from the inlet passage 16. A disc support is provided which includes the thrust collar 50 mounted on the lower end of the wall 44 and a central support member such as engagement sleeve 52 (FIG. 8) which is positioned adjacent the thrust collar 50 and in supporting relationship with the central portion 36 of the disc 30.
[0029] As shown in FIG. 8 the engagement sleeve 52 is held in the cartridge 28 by a latch providing a mechanical advantage which includes latching balls 54 movable into holes in the engagement sleeve 52 and a groove in a ball retainer sleeve 56 mounted in the wall 44 of the cartridge. The latching balls 54 are moved into the holes in the engagement sleeve by ramps 58 in a trigger pin 60 movable axially of the fluid conduit 14. The trigger pin 60 is part of a release means including a swivel cap 62 mounted for rotation on the wall 44 and held in position by retainer wires 63. The swivel cap 62 has a bore 64 in which the trigger pin 60 is slidable and a release pin 66 movable through an intersecting bore into position to block the bore and hold the trigger pin 60 down in the cocked position as shown in FIG. 8. A safety pin 68 may be inserted through the swivel cap 62 and the release pin 66 to prevent the accidental operation of the apparatus. The safety pin 68 may be removed when the apparatus is ready for use.
[0030] An actuator spring 70 may be positioned within the engagement sleeve 52 and in engagement with the trigger pin 60 to urge the trigger pin upwardly (FIG. 8) into engagement with the release pin 66 for providing sufficient pressure against the release pin 66 to hold it in place while at the same time limiting the pressure so that an aircraft attendant can remove the release pin manually. Also when the release pin 66 is removed, the actuator spring 70 and the action of the latching balls 54 will raise the trigger pin 60 actuating the latch by allowing the latching balls 54 to move into the ramps 58 and out of the groove in the ball retainer sleeve 56 and the holes in the engagement sleeve 52.
[0031] The above described cooperative elements of the cartridge member 28 including the disc 30, thrust collar 50, engagement sleeve 52, latch balls 54, ramp 58, trigger pin 60, release pin 66, and swivel cap 62 define a first valve mechanism that operates as an on off valve that releases the reservoir of high pressure gas upon actuation. This first valve mechanism routes the high pressure gas to a second valve mechanism to be described which controls the output pressure of the device described. The first valve mechanism and the second valve mechanism is referred to as a valve means or the overall valve mechanism.
[0032] In the operation, when the engagement sleeve 52 is released in this manner described above, the high pressure of the fluid in the bottle 12 will rupture the unsupported control portion 36 of the disc 30 and force the engagement sleeve 52 upwardly to a position such as that shown in FIG. 11. The gases or fluids from the bottle 12 move in the direction shown by the arrows in FIG. 11 into a cartridge chamber 72 within the walls 44 and then through holes 74 in the wall 44 through an outlet passage 76. Impact dampers such as O-rings 78 of resilient material (Nitrile rubber) may be mounted in the ball retainer sleeve 56 of the cartridge 28 to cushion the impact of the trigger pin 60 and engagement sleeve 52 which are propelled upwardly by the high pressure gases into engagement with the cartridge upon rupture of the disc 30.
[0033] The outlet passage 76 is in communication with an inlet port 80 of a generally cylindrical pressure regulator chamber 82 in the valve housing 10 (FIG. 9). The pressure regulator chamber 82 has an axis B-B which is in cross configuration with the axis A-A of the fluid conduit 14 so that at a cross over point 84, the outlet passage 76 of the fluid conduit 14 and the inlet port 80 of the pressure regulator chamber 82-are combined in an intersecting passage 86.
[0034] Axially movable within the pressure regulator chamber 82 is a regulator member or piston 88 having a piston rod 90 slidably movable in a cylindrical opening 92 at the right end of the housing as shown in FIG. 9. A spool member 94 is mounted on the piston rod 90 and is movable to the left as shown in FIG. 9 into the cylindrical opening 96 providing a gas discharge orifice 98 between an edge 100 of the cylindrical opening 92 and an edge 102 of the spool member 94. The pressure regulator also includes a spring 104 and a spring adjuster 106 threaded in the pressure regulator chamber 82 for increasing or decreasing the compression of the spring acting on the piston 88. As shown in FIG. 9, a stop means such as spool stop screw 108 may be threaded in the spring adjuster 106 during charging of the bottle 12 with high pressure fluid to prevent over stroking the piston 88.
[0035] The piston 88 has an end area 110, the diameter of which is indicated by letter "a" in FIG. 9 which is greater than the end area 112 at the left side of the spool member 94, the diameter of which is indicated by letter "b" in FIG. 9. The spool also has a small end area 114 at the right side as shown in FIG. 9.
[0036] The second valve mechanism of the valve means referred to earlier includes the regulator member or piston 88 operative in chamber 82, rod 90, spool member 94, edge 102, and spring adjuster 106.
[0037] In operation the high pressure gas is communicated to a high pressure section 116 of the pressure regulator chamber 82 upon opening of the bottle 12 by rupturing the disc 30. This high pressure gas acts on the end area 110 of the piston 88 causing the piston and piston rod 90 to move to the left as shown in FIG. 9 to a position where the force of the spring 104 plus the force of the gas against the end area 112 of the spool member 94 is equal to the force from the gas pressure against the end area 110 of the piston and the pressure of the low pressure gas against the end area 114 of the spool. The gas discharge orifice 98 is then at a position to provide low pressure gas in a low pressure section 118 of the pressure regulator chamber 82 which is then communicated through outlet ports such as discharge ports 120 and 122 connected by hoses 124 and 126 to aspirators 9.
[0038] Seals such as O-rings 128 and 130 may be provided in the regulator chamber 82. In operation the high pressure gas from the intersecting passage 86 is at approximately 3,000 pounds per square inch (210.92 kilograms per square centimeter).
[0039] With this apparatus the bottle 12 may be charged with high pressure gas by closing one of the discharge ports 120 or 122 and connecting the other port to a source of high pressure gas.
[0040] Where there is an accidental dropping of the container or bottle 12 and the valve housing 10 is broken off at the neck 22 of the container 12, the safety valve 21 is moved upwardly by the pressure from the gas in the reservoir of the container 12 acting on the bottom surface of plug 27. The plug 27 of the safety valve 21 blocks the flow of pressurized fluid via apertures 31 since the plug 27 moves into engagement with the lower end portion of the inlet passageway 16. The beveled seating surface 17 of plug 27 comes into sealing engagement with the beveled seating surface 13 of nipple 18.
[0041] Such action blocks the flow path and reduces the discharge rate from the pressurized container 12 to prevent any propulsive reaction of the container. A small amount of leakage past the safety valve as via vent aperture 29 would allow the reservoir of container 12 to bleed down slowly without generating any propulsive forces. This installation of the safety valve 21 on the pressurized container 12 as described above allows the valve housing to sustain severe impact loads, without becoming self propelled providing the container 12 is not itself significantly deformed
[0042] A second embodiment of the invention is shown in FIGS. 13 through 17 where the container that houses the pressurized fluid is designated 12 a and is identical to the container 12 of the first described embodiment.
[0043] A valve housing 140, which may be a machined casting, is shown as mounted on the high pressure container 12 a. The valve housing 140 has a nipple portion 141 that threadedly engages the necked portion 142 of container 12 a. The nipple portion 141 extends downward beyond the necked portion into the container 12 a and is referred to as the lower end portion 144 of valve housing 140. Such lower end portion 144 has a stepped bore 145 extending crosswise through the valve housing 140. One side of such stepped bore 145 has a bore portion designated 146 and the other side of such stepped bore 145 has a bore portion 147 whose diameter is designated D1. The side wall of the stepped bore 145 at the juncture of bore portion 146 and bore portion 147 is circumferentially recessed to receive an annular seal 148 having an outside diameter D2 that is substantially smaller than diameter D1 for bore portion 147. The side wall of the stepped bore 145 that receives seal 148 may be arcuately recessed to receive one side of a ball valve 150. The diametrically opposite one side of such ball valve 150 abuttingly engages an annular thrust seal 152 that is arcuately contoured on its one side to frictionally engage such ball valve 150 and allows the rotation of a ball valve 150 while maintaining a pressure on ball valve 150. Annular thrust seal 152 has a diameter D1, identical to that of bore portion 147.
[0044] Ball valve 150 is journaled for rotation in the central portion of stepped bore 145. Ball valve 150 has a cylindrical bore 153 that extends therethrough for communicating with bore portion 146 when such ball valve 150 is rotated ninety (90) degrees from that position shown in FIG. 13 to that position shown in FIG. 16. The upper portion of ball valve 150 has a hexagonal shaped recess 154 that communicates with the cylindrically shaped bore in such valve 150 for a purpose to be described.
[0045] Valve housing 140 has a central stepped bore that extends from the uppermost end portion to the stepped bore 145 in the lower end portion 144. Mounted in such central stepped bore is a first valve mechanism or sleeve 157 with an upper solid cylindrical flange 158 that is frictionally received by bore or bore portion 159 of the central stepped bore and a lower annular flange 160 that is frictionally received by bore or bore portion 161 of the central stepped bore. In addition sleeve 157 has an annular flange 163 at its middle portion which is frictionally received by bore portion 161. The respective flanges 158, 160 and 163 have annular seals to inhibit fluid leakage as is well known in the art. Immediately above the upper cylindrical flanges 158, the first valve mechanism or sleeve 157 has a cylindrically shaped shaft or rod 166 which receives an annular cap 167, which cap 167 is threadedly secured to the threaded upper end portion 168 of the central stepped bore. The lower portion of annular cap 167 has an annular recess to receive a thrust bearing 170. The annular cap 167 is suitably threaded onto the valve housing 140 to bear upon thrust bearing 170, which in turn frictionally bears onto upper flange 158 of sleeve 157 to permit selective rotation but maintains the vertical altitude and position (as viewed in FIG. 13). The lowermost end portion 172 of sleeve 157 is a hexagonal shape and is securely received by the hexagonally shaped recess 154 in top portion of ball valve 150. Rotation of sleeve 157 controls the ball valve 150 and controls the precise alignment of the cylindrical bore 153 in ball valve 150 with the bore or bore portion 146 and with the pressurized reservoir of the container 12 a. Sleeve 157 is hollow from the upper cylindrical flange 158 to the hexagonal shaped end portion 172 (FIG. 14) that defines a central bore 174. A plurality of circumferentially and vertical spaced apertures 173 in the sleeve 157 adjacent to the upper cylindrical flange 158 communicate the central bore 174 with a pressure chamber 175, which in turn communicate with a bore or a pressure regulator chamber 82′. Such regulator chamber 82′ is identical to the previously described regulator chamber 82 described in the first embodiment and receives the identical regulator member or second valve mechanism as described in the first embodiment and operates in the same manner.
[0046] The shaft 166 terminates in a reduced shaft or shaft portion 177 and journals for rotation therewith a circular flange member 179. The shaft portion 177 is centrally threaded to receive a bolt 180 which firmly secures the flange member 179 onto the shaft 177 with the aid of a washer 181. Circular flange member 179 has a circumferentially extending groove as at 182 along a portion of its periphery to receive and guide a lanyard 184 (FIG. 15) whose one end portion is secured to a pin 185 which in turn is frictionally held in a groove 186 (FIG. 15) on the flange 179. Such lanyard and pin 185 are subjected to being disengaged from the circular flange member 179 upon pulling on the lanyard as depicted by the dotted lines in FIG. 15.
[0047] The top portion of the valve housing 140 has an arcuate guide member 188 along a portion of the flange member 179 to insure the retention of the pin 185 and lanyard 184 within the groove 186 until the flange member was rotated ninety degrees which would rotate the sleeve or first valve mechanism 157 ninety degrees to align the cylindrical bore 153 in ball valve 150 with the high pressure fluids in container 12 a via bore or bore portion 146. An abutment or stop member 190 on the flange member 179 is operative to engage the end of arcuate guide member 188 to limit the rotation of flange member 179 to ninety degrees.
[0048] In the operation of the described embodiment, the lanyard 184 is rotated ninety degrees which rotates sleeve 157 and ball valve 150 to align cylindrical bore 153 with bore 146 as shown in FIG. 16 to conduct the high pressure fluids through the central bore 174, through the apertures 173 and into the pressure regulator chamber 82′ for processing to a reduced controlled pressure by the regulator member or second valve mechanism as described in the first embodiment wherein the inflatable member as the escape slide is inflated by a controlled fluid pressure.
[0049] In the accidental dropping of container 12 a, breakage of the valve housing 140 would ordinarily result at the neck portion 142 as depicted by FIG. 17 wherein the first valve mechanism is in the non-actuated condition such that the cylindrical bore 153 in ball valve 150 is not aligned with bore 146 and thus block the flow of high pressure fluids out of bore 161. Such action prevents any propulsive reaction of the container 12 a. To further insure the safe release of the high pressure fluid a vent bore 192 is located in the lower nipple portion 141 of valve housing 140 communicating with the bore 161. In the normal inoperative condition of the valves in the valve housing 140, an additional vent bore 193 is located in the upper portion of valve housing 140 communicating bore 161 with an outlet opening 194, suitably capped by a removable threaded bolt 195. A pressure gauge 197 may be suitably connected to a chamber 198 and vent bore 193.
[0050]FIGS. 3 and 4 illustrate the prior art problem of where the valves or valve mechanism which is mounted on the neck of a pressurized fluid container 12 when broken off, as by an accidental dropping of the container, would cause an uncontrolled release of the pressurized gas or fluid and would cause the pressurized container to become propelled at an alarming high velocity without specific direction. FIGS. 5 and 6 illustrate the same condition of droppage with the valve mechanism broken off but because of the improved safety valve 21 as safety ball valve 150 would block the flow of high pressure fluid and permit the eventual venting of the high pressure fluids at a controlled safe rate and pressure.
[0051] The ball valve 150 in the second embodiment is held firmly and positively in its non-actuated position at all time by a pressurized force F (seat) exerted upon the ball valve 150 as represented by the following formula.
F(seat) =P(reservoir) �P(atmosphere) divided by the quantity (A1 −A2).
[0052] Where F (seat) is the force exerted upon the ball valve 150 to force it into its seat.
[0053] P (reservoir) is the pressure of the fluid in the reservoir.
[0054] P (atmosphere) is the atmospheric pressure.
[0055] A 1 is (diameter D1 divided by 2) quantity squared �Pi (where Pi is the ratio of the circumference of a circle to its diameter, approximated at times as 3.1416).
[0056] A 2 is (diameter D2 divided by 2) quantity squared �Pi (where Pi is the ratio of the circumference of a circle to its diameter, approximated at times as 3.1416).
[0057] It is to be noted that without this force, F (seat), the seal would leak and be ineffective as a seal or safety valve, resulting in damages and injury caused by an uncontrolled release of the highly pressurized fluids from the container as discussed above.
[0058] While certain representative embodiments and details have been shown and described for the purpose of illustrating the invention, it will be apparent to those skilled in the art that various changes and modifications other than those referred to may be made therein without departing from the spirit or scope of the invention.
|Citing Patent
|Filing date
|Publication date
|May 28, 2004
|Dec 26, 2006
|Randal Wade Crawford
|High pressure release safety valve assembly
|Apr 26, 2004
|Sep 18, 2007
|Aderholt Steven K
|Poppet valve assembly
|Jan 30, 2007
|May 31, 2011
|Fike Corporation
|Rupture disc assembly that withstands much higher back pressures than actuation pressure
|May 7, 2010
|Jul 12, 2011
|Daas Ip Management, Llc
|Burst disk assembly
|Apr 26, 2004
|Dec 30, 2004
|Aderholt Steven K.
|Poppet valve assembly
|May 5, 2010
|Nov 11, 2010
|Daas Ip Management, Llc
|Burst disk assembly
|U.S. Classification
|137/68.23, 137/69, 137/68.19, 222/3, 137/494, 137/71
|International Classification
|Cooperative Classification
|European Classification
|Feb 13, 2006
|Fee payment
Year of fee payment: 4
|Feb 16, 2010
|Fee payment
Year of fee payment: 8
|Jan 15, 2014
|Fee payment
Year of fee payment: 12


text:
Tom Smart, Deseret News
Etymologically speaking, the word "holiday" descends from the Old English word "häligdæg," which refers to a holy day, or a day of special religious significance.
Through the years, the word has become a generic reference to any day of observance, from the sacred (Easter) to the political (President's Day) to the profane (Halloween). More recently, "happy holidays" has been perceived as the politically correct alternative to "Merry Christmas" when one wishes to extend good wishes without risking religious offence.
But as far as the month of December is concerned, the word "holidays" is precisely correct, with a number of significant "holy days" and observances important to a variety of religious groups from Buddhists to Zoroastrians.
For Utah's predominant faith group, The Church of Jesus Christ of Latter-day Saints, the month of December is all about Christmas, which celebrates the miraculous birth of Jesus Christ, who Mormons and other Christians believe is the son of God and the Savior of all mankind. At its world headquarters in downtown Salt Lake City, the LDS Church has traditionally observed the holiday with hundreds of thousands of Christmas lights decorating Temple Square and the surrounding area, a Christmas Devotional featuring the church's First Presidency early in December, a series of Christmas concerts by the Mormon Tabernacle Choir and its annual Christmas pageant, "Savior of the World," at the Conference Center Little Theater.
Individual LDS congregations, called wards, also have ward Christmas parties and focus on the spiritual meanings of Christmas during Sunday worship services the Sunday before Christmas.
But among Utah's other Christian denominations there are also wide variety of Christmas-oriented observances. Colleen Gudreau, communications director for the Catholic Diocese of Salt Lake City, said for Utah's Catholic community the Christmas season begins four Sundays before Christmas with Advent.
"Advent is an anticipatory feeling more than anything," Gudreau said. "We're in a time of joyful waiting for the coming of Christ."
Other elements of a Catholic Christmas include the blessing of crèches and Advent wreaths; the praying of the O Antiphons ("You might be familiar with them from the hymn 'O Come, O Come, Emmanuel,' which paraphrases the O Antiphones," Gudreau said) during mass; the Posadas, which are re-enact Mary and Joseph looking for a place to stay in Bethlehem; and the Filipino Simbáng Gabi, which is a novena, or a series of prayers lasting nine days.
For all Catholics, Gudreau said, "Christmas starts Christmas Eve" with a full complement of religious observances, including a Christmas Carol service, a Vigil Mass, a Midnight Mass, several Christmas Masses on Christmas Day, 5 p.m. Vespers and a Benediction.
"Midnight Mass is usually so popular that you need to have a seating pass because there's a limitation as to how many people can be accommodated in the cathedral," said Gudreau, who said a pass can be obtained by calling 801-328-8941.
The Catholic Christmas observance continues through the Epiphany on Jan. 6. The Epiphany is traditionally when the three wise men come to visit the Christ child.
Also during the month of December, Catholics with roots in Mexico observe the Feast of Our Lady of Guadalupe, which celebrates the appearance of the Virgin Mary to a poor Mexican Indian named Juan Diego near what is now Mexico City.
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subset: commoncrawl


text:
Creative minds have always been known to survive any kind of bad training
Anna Freud
Some people drink deeply from the fountain of knowledge. Others just gargle.
Grant M. Bright
Welcome to Rogers International
Susan Rogers, the founder of Rogers International hasĀ30 years experience of blue chip markets, workingĀat senior client and agency positions at director level, including global æin-fieldÆ experience. Prior to establishing Rogers International in 2005, she held a number of senior positions including:
- Global Marketing Services Director ¢ ICI Paints
- Managing Director of full service market research agency ¢ INRA UK
- Head of Market and Strategic Planning ¢ KelloggÆs
- Research Manager ¢ Kraft Foods
Susan Rogers
FounderĀ- Rogers International


text:
Toby's Diary
(Page 33 of 112: Viewing Diary Entry 321 to 330)
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A gift for JosieJune 8th 2014 10:39 pm
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My mum bought Josie a marvellous thing which is called a mattress topper. She said it wasn't for Josie but for her own comfort but who spends the most time on that bed? I rest my case.
Sometimes a cat's gotta..June 5th 2014 11:13 pm
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Bounce!! You just feel so good to be alive that all that energy just doesn't feel like it fits in your body.
People earsJune 4th 2014 10:50 pm
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Another thing we learnt from the programme is that my mum has muscles in her ears. She never so much as twitches them so we did not know that. But obviously her ears are rubbish compared to ours - and last night she proved it. We weren't there but she told us.
Cats on the TVJune 3rd 2014 10:42 pm
[ Leave A Comment | 2 people already have ]
I was out last night but had to come running in when the heavens opened. I do not care to be wet.
Mum attacked JosieJune 2nd 2014 10:34 pm
[ Leave A Comment | 3 people already have ]
It was brilliant. I haven't laughed so much in ages!!
We had visitorsJune 1st 2014 10:41 pm
[ Leave A Comment | 3 people already have ]
We know when people are coming to stay as mum clears everything out of the spare room and Josie helped mum make up the bed. Oh - mum says chasing your own tail while someone tries to make up a bed around you isn't helping. Josie tried to look contrite but couldn't quite suppress her glee. She did have a marvellous time.
Watch out for my dinner bowl! Too late!May 29th 2014 10:37 pm
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Mum likes to tell us stories of the cats she has known and loved in the past. I'm pretty sure they aren't true. These paragons never woke her at night, came when called, sat daintily on a lap when invited etc. Nah! These are the cats of her imagination.
Diary of the DayMay 28th 2014 10:07 pm
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Wowser! I was very honoured to have been selected for this and for all my kind messages and gifts. I would like to thank all my Catster friends who are kind enough to read my diary and send me messages without whom there would be no Toby Blog. And I would like to thank my sisfer Josie who is sometimes annoying but mostly OK.
The circle of lifeMay 27th 2014 10:40 pm
[ Leave A Comment | 4 people already have ]
I got a bird yesterday which was brilliant only mum saw me with it. She got all frantic and was trying to call me in. "OK" I thought, "I'll just bring my bird" but when I reached for it the darned thing darted away.
The hitchhikerMay 26th 2014 10:41 pm
[ Leave A Comment | 1 person already has ]
Mum went to her barbecue yesterday. On the way she stopped off to pick up a friend, Stephanie, who has four cats. I think two is enough so hope she didn't get any ideas.
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He's back.Two years ago, Brehann Williams' fiancé died in a fiery crash and his best friend, Sebastian Bernecchi, disappeared. In one horrible evening she'd lost two men she loved, and she blamed herself for what happened. But now Bash—Sebastian—is back in town, claiming he wants to take up where they left off.She can't ignore the chemistry that still exists between them—just being near Bash makes her think of heart-pounding, mouth watering sex. And she knows he'll fulfill every one of her fantasies. After all, once—years ago—they'd been lovers.Acting on their feelings for one another had been wrong before, but there was nothing to deny them their passion this time.Nothing except the sinister black Corvette that lurks in the shadows and the danger that swirls around them.
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1 Movies News
We're The Millers: Digital Spy screening of new Jennifer Aniston movie
Last night Digital Spy hosted a special pre-release preview of Jennifer Aniston's latest movie We're The Millers.
Warner Bros HQ in London played host to the screening of the Rawson Marshall Thurber-directed comedy, which reunites Aniston with her Horrible Bosses co-star Jason Sudeikis.
We're The Millers sees the former Friends star play Rose, a stripper who is recruited by low-level pot dealer David (Sudeikis) to pose as his wife so he can smuggle a shipment of marijuana into the US from Mexico.
In order to flesh out the elaborate facade, Rose and David form a makeshift family with homeless runaway Casey (Emma Roberts) and their neighbor Kenny (Will Poulter).
We're The Millers also held its UK premiere in Leicester Square yesterday with the cast walking the blue carpet alongside The Saturdays and Made in Chelsea's Lucy Watson and Kimberley Garner.
The comedy movie will open on August 23 across the UK.
Jack Huston and Jennifer Aniston are to star in Iraq War drama The Yellow Birds
Jennifer Aniston and Robert De Niro are together at last for Taylor Hackford's The Comedian
Where the hell has David Schwimmer been since Friends ended?
A beardless Jack Whitehall?! Check out Bad Education star's newly-fresh face


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This was our first time in Colorado Springs, I think we lucked out with this motel.


text:
The Senate voted Monday along party lines — 60-32 — voted to move along the confirmation if Mrs. Smith. All 58 Democrats — including the one Mr. Brown will replace — and both independents voted to advance the nomination.
Republican senators said Mr. Reid has not violated his pledge to them.
"He's lived up to that," said Sen. Lamar Alexander of Tennessee, chairman of the Senate Republican Conference, who said he interpreted Mr. Reid's vow as applying only to health care votes.
Democrats last week needed all 60 members of their caucus to push through an increase to the country's debt limit, including the vote of Sen. Paul Kirk, who holds the Massachusetts seat until Mr. Brown is sworn in.
Mr. Alexander said he expects the situation with Mr. Brown to be cleared up any day.


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Are you W. L. Holzapfel?Claim your profile
Publications (278)898.76 Total impact
Article: Fabrication of large dual-polarized multichroic TES bolometer arrays for CMB measurements with the SPT-3G cameraSuperconductor Science and Technology 09/2015; 28(9):094002. DOI:10.1088/0953-2048/28/9/094002 · 2.33 Impact Factor
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ABSTRACT: We present a multi-wavelength study of 90 brightest cluster galaxies (BCGs) in a sample of galaxy clusters selected via the Sunyaev Zel'dovich effect by the South Pole Telescope, utilizing data from various ground- and space-based facilities. We infer the star formation rate (SFR) for the BCG in each cluster, based on the UV and IR continuum luminosity, as well as the [O II] emission line luminosity in cases where spectroscopy is available, finding 7 systems with SFR > 100 Msun/yr. We find that the BCG SFR exceeds 10 Msun/yr in 31 of 90 (34%) cases at 0.25 < z < 1.25, compared to ~1-5% at z ~ 0 from the literature. At z > 1, this fraction increases to 92(+6)(-31)%, implying a steady decrease in the BCG SFR over the past ~9 Gyr. At low-z, we find that the specific star formation rate in BCGs is declining more slowly with time than for field or cluster galaxies, most likely due to the replenishing fuel from the cooling ICM in relaxed, cool core clusters. At z > 0.6, the correlation between cluster central entropy and BCG star formation - which is well established at z ~ 0 - is not present. Instead, we find that the most star-forming BCGs at high-z are found in the cores of dynamically unrelaxed clusters. We investigate the rest-frame near-UV morphology of a subsample of the most star-forming BCGs using data from the Hubble Space Telescope, finding complex, highly asymmetric UV morphologies on scales as large as ~50-60 kpc. The high fraction of star-forming BCGs hosted in unrelaxed, non-cool core clusters at early times suggests that the dominant mode of fueling star formation in BCGs may have recently transitioned from galaxy-galaxy interactions to ICM cooling.
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ABSTRACT: We measure the cross-correlation between the galaxy density in the Dark Energy Survey (DES) Science Verification data and the lensing of the cosmic microwave background (CMB) as reconstructed with the Planck satellite and the South Pole Telescope (SPT). When using the DES main galaxy sample over the full redshift range $0.2 < z < 1.2$, a cross-correlation signal is detected at $6 \sigma$ and $4\sigma$ with SPT and Planck respectively. We then divide the DES galaxies into five photometric redshift bins, finding significant ($>$$2 \sigma$) detections in all bins. Comparing to the fiducial Planck cosmology, we find the redshift evolution of the signal matches expectations, although the amplitude is consistently lower than predicted across redshift bins. We test for possible systematics that could affect our result and find no evidence for significant contamination. Finally, we demonstrate how these measurements can be used to constrain the growth of structure across cosmic time. We find the data are fit by a model in which the amplitude of structure in the $z<1.2$ universe is $0.73 \pm 0.16$ times as large as predicted in the LCDM Planck cosmology, a $1.7\sigma$ deviation.
Article: Constraints on the Richness-Mass Relation and the Optical-SZE Positional Offset Distribution for SZE-Selected Clusters[Show abstract] [Hide abstract]
ABSTRACT: We cross-match galaxy cluster candidates selected via their Sunyaev-Zel'dovich effect (SZE) signatures in 129.1 deg$^2$ of the South Pole Telescope 2500d SPT-SZ survey with optically identified clusters selected from the Dark Energy Survey (DES) science verification data. We identify 25 clusters between $0.1\lesssim z\lesssim 0.8$ in the union of the SPT-SZ and redMaPPer (RM) samples. RM is an optical cluster finding algorithm that also returns a richness estimate for each cluster. We model the richness $\lambda$-mass relation with the following function $\langle\ln\lambda|M_{500}\rangle\propto B_\lambda\ln M_{500}+C_\lambda\ln E(z)$ and use SPT-SZ cluster masses and RM richnesses $\lambda$ to constrain the parameters. We find $B_\lambda= 1.14^{+0.21}_{-0.18}$ and $C_\lambda=0.73^{+0.77}_{-0.75}$. The associated scatter in mass at fixed richness is $\sigma_{\ln M|\lambda} = 0.18^{+0.08}_{-0.05}$ at a characteristic richness $\lambda=70$. We demonstrate that our model provides an adequate description of the matched sample, showing that the fraction of SPT-SZ selected clusters with RM counterparts is consistent with expectations and that the fraction of RM selected clusters with SPT-SZ counterparts is in mild tension with expectation. We model the optical-SZE cluster positional offset distribution with the sum of two Gaussians, showing that it is consistent with a dominant, centrally peaked population and a sub-dominant population characterized by larger offsets. We also cross-match the RM catalog with SPT-SZ candidates below the official catalog threshold significance $\xi=4.5$, using the RM catalog to provide optical confirmation and redshifts for additional low-$\xi$ SPT-SZ candidates.In this way, we identify 15 additional clusters with $\xi\in [4,4.5]$ over the redshift regime explored by RM in the overlapping region between DES science verification data and the SPT-SZ survey.
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ABSTRACT: Atmosphere is one of the most important noise sources for ground-based Cosmic Microwave Background (CMB) experiments. By increasing optical loading on the detectors, it amplifies their effective noise, while its fluctuations introduce spatial and temporal correlations between detected signals. We present a physically motivated 3d-model of the atmosphere total intensity emission in the millimeter and sub-millimeter wavelengths. We derive an analytical estimate for the correlation between detectors time-ordered data as a function of the instrument and survey design, as well as several atmospheric parameters such as wind, relative humidity, temperature and turbulence characteristics. Using numerical computation, we examine the effect of each physical parameter on the correlations in the time series of a given experiment. We then use a parametric-likelihood approach to validate the modeling and estimate atmosphere parameters from the POLARBEAR-I project first season data set. We compare our results to previous studies and weather station measurements, and find that the polarization fraction of atmospheric emission is below 1.0 percent. The proposed model can be used for realistic simulations of future ground-based CMB observations.The Astrophysical Journal 01/2015; 809(1). DOI:10.1088/0004-637X/809/1/63 · 5.99 Impact Factor
Article: A Measurement of Gravitational Lensing of the Cosmic Microwave Background by Galaxy Clusters Using Data from the South Pole Telescope[Show abstract] [Hide abstract]
ABSTRACT: Clusters of galaxies are expected to gravitationally lens the cosmic microwave background (CMB) and thereby generate a distinct signal in the CMB on arcminute scales. Measurements of this effect can be used to constrain the masses of galaxy clusters using CMB data alone. Here we present a measurement of lensing of the CMB by galaxy clusters using data from the South Pole Telescope (SPT). We develop a maximum likelihood approach to extract the CMB cluster lensing signal and validate the method on mock data. We quantify the effects of several potential sources of systematic error and find that they generally act to reduce the best-fit cluster mass. The net magnitude of the systematic shift to lower cluster mass is approximately the size of our statistical error bar, and we do not attempt to correct for it. We apply the maximum likelihood technique to 513 clusters selected via their SZ signatures in SPT data, and rule out the null hypothesis of no lensing at 3.0$\sigma$. The lensing-derived mass estimate for the full cluster sample is consistent with that inferred from the SZ flux: $M_{200,\rm{lens}} = 0.76^{+0.37}_{-0.36} M_{200,\rm{SZ}}$ (68% C.L., statistical error only).The Astrophysical Journal 12/2014; 806(2). DOI:10.1088/0004-637X/806/2/247 · 5.99 Impact Factor
Article: A Measurement of the Cosmic Microwave Background Gravitational Lensing Potential from 100 Square Degrees of SPTpol Data[Show abstract] [Hide abstract]
ABSTRACT: We present a measurement of the cosmic microwave background (CMB) gravitational lensing potential using data from the first two seasons of observations with SPTpol, the polarization-sensitive receiver currently installed on the South Pole Telescope (SPT). The observations used in this work cover 100 deg$^2$ of sky with arcminute resolution at 150 GHz. Using a quadratic estimator, we make maps of the CMB lensing potential from combinations of CMB temperature and polarization maps. We combine these lensing potential maps to form a minimum-variance (MV) map. The lensing potential is measured with a signal-to-noise ratio of greater than one for angular multipoles between $100< L <250$. This is the highest signal-to-noise mass map made from the CMB to date and will be powerful in cross-correlation with other tracers of large-scale structure. We calculate the power spectrum of the lensing potential for each estimator, and we report the value of the MV power spectrum between $100< L <2000$ as our primary result. We constrain the ratio of the spectrum to a fiducial $\Lambda$CDM model to be $A_{\rm MV}=0.92 \pm 0.14 {\rm\, (Stat.)} \pm 0.08 {\rm\, (Sys.)}$. Restricting ourselves to polarized data only, we find $A_{\rm POL}=0.93 \pm 0.25 {\rm\, (Stat.)} \pm 0.11 {\rm\, (Sys.)}$. This measurement rejects the hypothesis of no lensing at $5.8 \sigma$ using polarization data alone, and at $14 \sigma$ using both temperature and polarization data.The Astrophysical Journal 12/2014; 810(1). DOI:10.1088/0004-637X/810/1/50 · 5.99 Impact Factor
Article: Measurements of E-Mode Polarization and Temperature-E-Mode Correlation in the Cosmic Microwave Background from 100 Square Degrees of SPTpol Data[Show abstract] [Hide abstract]
ABSTRACT: We present measurements of $E$-mode polarization and temperature-$E$-mode correlation in the cosmic microwave background (CMB) using data from the first season of observations with SPTpol, the polarization-sensitive receiver currently installed on the South Pole Telescope (SPT). The observations used in this work cover 100~\sqdeg\ of sky with arcminute resolution at $150\,$GHz. We report the $E$-mode angular auto-power spectrum ($EE$) and the temperature-$E$-mode angular cross-power spectrum ($TE$) over the multipole range $500 < \ell \leq5000$. These power spectra improve on previous measurements in the high-$\ell$ (small-scale) regime. We fit the combination of the SPTpol power spectra, data from \planck\, and previous SPT measurements with a six-parameter \LCDM cosmological model. We find that the best-fit parameters are consistent with previous results. The improvement in high-$\ell$ sensitivity over previous measurements leads to a significant improvement in the limit on polarized point-source power: after masking sources brighter than 50\,mJy in unpolarized flux at 150\,GHz, we find a 95\% confidence upper limit on unclustered point-source power in the $EE$ spectrum of $D_\ell = \ell (\ell+1) C_\ell / 2 \pi < 0.40 \ \mu{\mbox{K}}^2$ at $\ell=3000$, indicating that future $EE$ measurements will not be limited by power from unclustered point sources in the multipole range $\ell < 3600$, and possibly much higher in $\ell.$The Astrophysical Journal 11/2014; 805(1). DOI:10.1088/0004-637X/805/1/36 · 5.99 Impact Factor
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ABSTRACT: POLARBEAR-2 is a next-generation receiver for precision measurements of the polarization of the cosmic microwave background (Cosmic Microwave Background (CMB)). Scheduled to deploy in early 2015, it will observe alongside the existing POLARBEAR-1 receiver, on a new telescope in the Simons Array on Cerro Toco in the Atacama desert of Chile. For increased sensitivity, it will feature a larger area focal plane, with a total of 7,588 polarization sensitive antenna-coupled Transition Edge Sensor (TES) bolometers, with a design sensitivity of 4.1 uKrt(s). The focal plane will be cooled to 250 milliKelvin, and the bolometers will be read-out with 40x frequency domain multiplexing, with 36 optical bolometers on a single SQUID amplifier, along with 2 dark bolometers and 2 calibration resistors. To increase the multiplexing factor from 8x for POLARBEAR-1 to 40x for POLARBEAR-2 requires additional bandwidth for SQUID readout and well-defined frequency channel spacing. Extending to these higher frequencies requires new components and design for the LC filters which define channel spacing. The LC filters are cold resonant circuits with an inductor and capacitor in series with each bolometer, and stray inductance in the wiring and equivalent series resistance from the capacitors can affect bolometer operation. We present results from characterizing these new readout components. Integration of the readout system is being done first on a small scale, to ensure that the readout system does not affect bolometer sensitivity or stability, and to validate the overall system before expansion into the full receiver. We present the status of readout integration, and the initial results and status of components for the full array.
Article: A Measurement of the Cosmic Microwave Background B-mode Polarization Power Spectrum at Sub-degree Scales with POLARBEARThe Astrophysical Journal 10/2014; 794(2):171. · 5.99 Impact Factor
Article: Galaxy Clusters Discovered via the Sunyaev-Zel'dovich Effect in the 2500-Square-Degree SPT-SZ Survey[Show abstract] [Hide abstract]
ABSTRACT: We present a catalog of galaxy clusters selected via their Sunyaev-Zel'dovich (SZ) effect signature from 2500 deg$^2$ of South Pole Telescope (SPT) data. This work represents the complete sample of clusters detected at high significance in the 2500-square-degree SPT-SZ survey, which was completed in 2011. A total of 677 (409) cluster candidates are identified above a signal-to-noise threshold of $\xi$ =4.5 (5.0). Ground- and space-based optical and near-infrared (NIR) imaging confirms overdensities of similarly colored galaxies in the direction of 516 (or 76%) of the $\xi$>4.5 candidates and 387 (or 95%) of the $\xi$>5 candidates; the measured purity is consistent with expectations from simulations. Of these confirmed clusters, 415 were first identified in SPT data, including 251 new discoveries reported in this work. We estimate photometric redshifts for all candidates with identified optical and/or NIR counterparts; we additionally report redshifts derived from spectroscopic observations for 141 of these systems. The mass threshold of the catalog is roughly independent of redshift above $z$~0.25 leading to a sample of massive clusters that extends to high redshift. The median mass of the sample is $M_{\scriptsize 500c}(\rho_\mathrm{crit})$ ~ 3.5 x 10$^{14} M_\odot h^{-1}$, the median redshift is $z_{med}$ =0.55, and the highest-redshift systems are at $z$>1.4. The combination of large redshift extent, clean selection, and high typical mass makes this cluster sample of particular interest for cosmological analyses and studies of cluster formation and evolution.The Astrophysical Journal Supplement Series 09/2014; 216(2). DOI:10.1088/0067-0049/216/2/27 · 11.22 Impact Factor
Article: The POLARBEAR-2 experiment[Show abstract] [Hide abstract]
ABSTRACT: We present an overview of the design and development of the POLARBEAR-2 experiment. The POLARBEAR-2 experiment is a cosmic microwave background polarimetry experiment, which aims to characterize the small angular scale B-mode signal due to gravitational lensing and search for the large angular scale B-mode signal from inflationary gravitational waves. The experiment will have a 365 mm diameter multi-chroic focal plane filled with 7,588 polarization sensitive antenna-coupled Transition Edge Sensor bolometers and will observe at 95 and 150 GHz. The focal plane is cooled to 250 mK. The bolometers will be read-out by SQUIDs with frequency domain multiplexing. The experiment will utilize high purity alumina lenses and thermal filters to achieve the required high optical throughput. A continuously rotating, cooled half-wave plate will be used to give stringent control over systematic errors. The experiment is designed to achieve a noise equivalent temperature of 5.7 K, and this allows us to constrain the signal from the inflationary primordial gravitational corresponding to a tensor-to-scalar ratio of (). POLARBEAR-2 will also be able to put a constraint on the sum of neutrino masses to 90 meV () with POLARBEAR-2 data alone and 65 meV () when combined with the Planck satellite. We plan to start observations in 2014 in the Atacama Desert in Chile.Journal of Low Temperature Physics 09/2014; 176(5-6):719-725. DOI:10.1007/s10909-014-1112-x · 1.02 Impact Factor
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ABSTRACT: The polarbear cosmic microwave background (CMB) polarization experiment has been observing since early 2012 from its 5,200 m site in the Atacama Desert in Northern Chile. polarbear's measurements will characterize the expected CMB polarization due to gravitational lensing by large scale structure, and search for the possible B-mode polarization signature of inflationary gravitational waves. polarbear's 250 mK focal plane detector array consists of 1,274 polarization-sensitive antenna-coupled bolometers, each with an associated lithographed band-defining filter and contacting dielectric lenslet, an architecture unique in current CMB experiments. The status of the polarbear instrument, its focal plane, and the analysis of its measurements are presented.Journal of Low Temperature Physics 09/2014; 176(5-6):726-732. DOI:10.1007/s10909-013-1065-5 · 1.02 Impact Factor
Conference Paper: Optimization of cold resonant filters for frequency domain multiplexed readout of POLARBEAR-2SPIE Astronomical Telescopes + Instrumentation; 08/2014
Article: A Measurement of Secondary Cosmic Microwave Background Anisotropies from the 2500 Square-degree SPT-SZ Survey[Show abstract] [Hide abstract]
ABSTRACT: We present measurements of secondary cosmic microwave background (CMB) anisotropies and cosmic infrared background (CIB) fluctuations using data from the South Pole Telescope (SPT) covering the complete 2540 sq.deg. SPT-SZ survey area. Data in the three SPT-SZ frequency bands centered at 95, 150, and 220 GHz, are used to produce six angular power spectra (three single-frequency auto-spectra and three cross-spectra) covering the multipole range 2000 < ell < 11000 (angular scales 5' > \theta > 1'). These are the most precise measurements of the angular power spectra at ell > 2500 at these frequencies. The main contributors to the power spectra at these angular scales and frequencies are the primary CMB, CIB, thermal and kinematic Sunyaev-Zel'dovich effects (tSZ and kSZ), and radio galaxies. We include a constraint on the tSZ power from a measurement of the tSZ bispectrum from 800 sq.deg. of the SPT-SZ survey. We measure the tSZ power at 143 GHz to be DtSZ = 4.08 +0.58 -0.67 \mu K^2 and the kSZ power to be DkSZ = 2.9 +- 1.3 \mu K^2. The data prefer positive kSZ power at 98.1% CL. We measure a correlation coefficient of \xi = 0.113 +0.057 -0.054 between sources of tSZ and CIB power, with \xi < 0 disfavored at a confidence level of 99.0%. The constraint on kSZ power can be interpreted as an upper limit on the duration of reionization. When the post-reionization homogeneous kSZ signal is accounted for, we find an upper limit on the duration \Delta z < 5.4 at 95% CL.The Astrophysical Journal 08/2014; 799(2). DOI:10.1088/0004-637X/799/2/177 · 5.99 Impact Factor
Article: Analysis of Sunyaev-Zel'dovich Effect Mass-Observable Relations using South Pole Telescope Observations of an X-ray Selected Sample of Low Mass Galaxy Clusters and Groups[Show abstract] [Hide abstract]
ABSTRACT: (Abridged) We use 95, 150, and 220GHz observations from the SPT to examine the SZE signatures of a sample of 46 X-ray selected groups and clusters drawn from ~6 deg^2 of the XMM-BCS. These systems extend to redshift z=1.02, have characteristic masses ~3x lower than clusters detected directly in the SPT data and probe the SZE signal to the lowest X-ray luminosities (>10^42 erg s^-1) yet. We develop an analysis tool that combines the SZE information for the full ensemble of X-ray-selected clusters. Using X-ray luminosity as a mass proxy, we extract selection-bias corrected constraints on the SZE significance- and Y_500-mass relations. The SZE significance- mass relation is in good agreement with an extrapolation of the relation obtained from high mass clusters. However, the fit to the Y_500-mass relation at low masses, while in good agreement with the extrapolation from high mass SPT clusters, is in tension at 2.8 sigma with the constraints from the Planck sample. We examine the tension with the Planck relation, discussing sample differences and biases that could contribute. We also present an analysis of the radio galaxy point source population in this ensemble of X-ray selected systems. We find 18 of our systems have 843 MHz SUMSS sources within 2 arcmin of the X-ray centre, and three of these are also detected at significance >4 by SPT. Of these three, two are associated with the group brightest cluster galaxies, and the third is likely an unassociated quasar candidate. We examine the impact of these point sources on our SZE scaling relation analyses and find no evidence of biases. We also examine the impact of dusty galaxies using constraints from the 220 GHz data. The stacked sample provides 2.8$\sigma$ significant evidence of dusty galaxy flux, which would correspond to an average underestimate of the SPT Y_500 signal that is (17+-9) per cent in this sample of low mass systems.Monthly Notices of the Royal Astronomical Society 07/2014; 448(3). DOI:10.1093/mnras/stv080 · 5.11 Impact Factor
Article: Measurement of the Cosmic Microwave Background Polarization Lensing Power Spectrum with the POLARBEAR Experiment[Show abstract] [Hide abstract]
ABSTRACT: Gravitational lensing due to the large-scale distribution of matter in the cosmos distorts the primordial cosmic microwave background (CMB) and thereby induces new, small-scale B-mode polarization. This signal carries detailed information about the distribution of all the gravitating matter between the observer and CMB last scattering surface. We report the first direct evidence for polarization lensing based on purely CMB information, from using the four-point correlations of even- and odd-parity E- and B-mode polarization mapped over ∼30 square degrees of the sky measured by the POLARBEAR experiment. These data were analyzed using a blind analysis framework and checked for spurious systematic contamination using null tests and simulations. Evidence for the signal of polarization lensing and lensing B modes is found at 4.2σ (stat+sys) significance. The amplitude of matter fluctuations is measured with a precision of 27%, and is found to be consistent with the Lambda cold dark matter cosmological model. This measurement demonstrates a new technique, capable of mapping all gravitating matter in the Universe, sensitive to the sum of neutrino masses, and essential for cleaning the lensing B-mode signal in searches for primordial gravitational waves.Physical Review Letters 07/2014; 113(2):021301. · 7.51 Impact Factor
Article: Mass Calibration and Cosmological Analysis of the SPT-SZ Galaxy Cluster Sample Using Velocity Dispersion σ v and X-Ray Y X Measurements[Show abstract] [Hide abstract]
ABSTRACT: We present a velocity dispersion-based mass calibration of the South Pole Telescope Sunyaev-Zel'dovich effect survey (SPT-SZ) galaxy cluster sample. Using a homogeneously selected sample of 100 cluster candidates from 720 deg2 of the survey along with 63 velocity dispersion ($\sigma_v$) and 16 X-ray Yx measurements of sample clusters, we simultaneously calibrate the mass-observable relation and constrain cosmological parameters. The calibrations using $\sigma_v$ and Yx are consistent at the $0.6\sigma$ level, with the $\sigma_v$ calibration preferring ~16% higher masses. We use the full cluster dataset to measure $\sigma_8(\Omega_ m/0.27)^{0.3}=0.809\pm0.036$. The SPT cluster abundance is lower than preferred by either the WMAP9 or Planck+WMAP9 polarization (WP) data, but assuming the sum of the neutrino masses is $\sum m_\nu=0.06$ eV, we find the datasets to be consistent at the 1.0$\sigma$ level for WMAP9 and 1.5$\sigma$ for Planck+WP. Allowing for larger $\sum m_\nu$ further reconciles the results. When we combine the cluster and Planck+WP datasets with BAO and SNIa, the preferred cluster masses are $1.9\sigma$ higher than the Yx calibration and $0.8\sigma$ higher than the $\sigma_v$ calibration. Given the scale of these shifts (~44% and ~23% in mass, respectively), we execute a goodness of fit test; it reveals no tension, indicating that the best-fit model provides an adequate description of the data. Using the multi-probe dataset, we measure $\Omega_ m=0.299\pm0.009$ and $\sigma_8=0.829\pm0.011$. Within a $\nu$CDM model we find $\sum m_\nu = 0.148\pm0.081$ eV. We present a consistency test of the cosmic growth rate. Allowing both the growth index $\gamma$ and the dark energy equation of state parameter $w$ to vary, we find $\gamma=0.73\pm0.28$ and $w=-1.007\pm0.065$, demonstrating that the expansion and the growth histories are consistent with a LCDM model ($\gamma=0.55; \,w=-1$).The Astrophysical Journal 07/2014; 799(2). DOI:10.1088/0004-637X/799/2/214 · 5.99 Impact Factor
Article: SPT-3G: A Next-Generation Cosmic Microwave Background Polarization Experiment on the South Pole Telescope[Show abstract] [Hide abstract]
ABSTRACT: We describe the design of a new polarization sensitive receiver, SPT-3G, for the 10-meter South Pole Telescope (SPT). The SPT-3G receiver will deliver a factor of ~20 improvement in mapping speed over the current receiver, SPTpol. The sensitivity of the SPT-3G receiver will enable the advance from statistical detection of B-mode polarization anisotropy power to high signal-to-noise measurements of the individual modes, i.e., maps. This will lead to precise (~0.06 eV) constraints on the sum of neutrino masses with the potential to directly address the neutrino mass hierarchy. It will allow a separation of the lensing and inflationary B-mode power spectra, improving constraints on the amplitude and shape of the primordial signal, either through SPT-3G data alone or in combination with BICEP-2/KECK, which is observing the same area of sky. The measurement of small-scale temperature anisotropy will provide new constraints on the epoch of reionization. Additional science from the SPT-3G survey will be significantly enhanced by the synergy with the ongoing optical Dark Energy Survey (DES), including: a 1% constraint on the bias of optical tracers of large-scale structure, a measurement of the differential Doppler signal from pairs of galaxy clusters that will test General Relativity on ~200 Mpc scales, and improved cosmological constraints from the abundance of clusters of galaxies.
Top Journals
McGill University
Montréal, Quebec, Canada
- Department of Physics
Lawrence Berkeley National LaboratoryBerkeley, California, United States
University of California, Berkeley
Berkeley, California, United States
- Department of Physics
Ludwig-Maximilians-University of Munich
München, Bavaria, Germany
- Department of Physics
Yale University
New Haven, Connecticut, United States
- Department of Physics
University of Chicago
Chicago, Illinois, United States
- • Kavli Institute for Cosmological Physics
- • Enrico Fermi Institute
Queen Mary, University of LondonLondinium, England, United Kingdom
University of Illinois, Urbana-Champaign
Urbana, Illinois, United States
- Department of Astronomy
Carnegie Mellon University
Pittsburgh, PA, United States
- Department of Physics
California Institute of TechnologyPasadena, California, United States
University of AlabamaTuscaloosa, Alabama, United States


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Madonna Disses Lady Gaga on Stage [VIDEO]
Really?? Is the 'Queen of Pop' that threatened over her thrown?
Really?? Is the 'Queen of Pop' that threatened over her thrown?
Hello and happy Friday South Jersey! With this cool weather and all my coffee joints unveiling the Pumpkin Spice fall flavors, it sure feels like the seasons are changing...
Madonna is simply the most recognized celebrity on the planet. And on Saturday, September 15 she'll be performing in Atlantic City when her 'MDNA' concert tour stops by Boardwalk Hall! We know how badly you want to go, so this week we have your free tickets!
While Lady Gaga was performing in Finland this week, a little monster threw a cell phone with a photo of Britney Spears on it on stage. We're not sure why a monster would toss their valuable phone on stage, since they are expensive, contain sensitive personal information, are essential to modern communication and not something that Gaga really needs in hand-me-down form. But it did get a response out of Gaga, and a relatively positive one at that.
The world's most notorious female pop star is bring her 'MDNA' concert tour to Atlantic City in September! If you want to score SoJO's free tickets to see Madonna live at Atlantic City Boardwalk Hall, follow these 2 steps:
1. Brush up on your knowledge of all things Madonna and get ready for lightening fast trivia rounds!
2. Become one of 'SoJO Friends With Benefits' for members-only access on when and how to win!
The Summer of SoJO concert season is in full swing, with plenty of your favorite artists passing through our area -- and SoJO 104.9 wa...
Soon, we can all smell like the Material Girl. Madonna has created a new scent called 'Truth Or Dare'. The fragrance (with hints of gardenias and tuberose) will soon be available at Macy's. Is it worth buying?
Will you wear Madonna's new perfume?
WOW! The Summer of SoJO is already heating up and it's only February! So many great shows are heading our way. Which concert are you the most excited about?
Boardwalk Hall, Atlantic City, New Jersey will play host to Madonna's MDNA Tour on September 15, 2012. Madge's North American trek also features an earlier summer stop at Philly's Wells Fargo Center on August 28...
Get those credit cards ready--it's official. The Material Girl hits Philly's Wells Fargo Center this summer. And tickets for her August 28th tour stop in the city of brotherly love could be steep...


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31 years of experience
Video profile
Accepting new patients
102 Medical Center Dr
Panama City, FL 32405 Phone number & directions
Patient Reviews
Patient Reviews ? Write a Review
Overall Rating:
Total Ratings
Total Reviews
I've had Dr Zeinomar since my son was born and since going I've never been less pleased with a doctors office. Other than ONE single nurse and the nurse practitioner who gave my sons all his shots every single person in this office is a joke. The nurses are rude, especially the nurse who schedules appointments and Zeinomar himself makes me wait HOURS to be seen and only spends about 5 minutes checking my child without any kind of system at all. He cuts you off when explaining your child's symptoms and won't even do a full check of the issue. Please for the safety of your children go somewhere else.
Great doctor!
My child had digestive for some years. He diagnosis my child immediately thru a caring procedure.
His Misdiagnosis almost caused my daughter's death at only a year old. Only with the GRACE of GOD and a his strength given to a persistent Loving Mother was my little girl pulled from the grips of death and able to be taken to another place to get the Vital treatment she so desperately needed to survive. God is good and she is now just fine thanks to a lot of answered prayers.
The wait time is horrible long. Most of the staff is rude! Hard to get an appointment when needed! I don't feel that he spends enough time with my children to really find out what is going on with them!
I've never written a review on anything, but this guy is such a quack I cant keep from letting everyone know how displeased I am. Horrible Dr. And staff..... Rude, inefficient, uncaring, more concerned with handing out prescriptions than actually diagnosing! This guy tried to put my 4 year old daughter on anti-depressants to "help" her relax at night! The staff is horrible (especially the young Hispanic looking female nurse). After waiting for 2 hours past my appointment time, I finally just left without my son even seeing the Dr. If you value your time and health, steer clear of this place!
No urgency. Very inefficient. Office schedules too many appointments, and always seems to run far behind schedule. Office staff and Dr are friendly enough, but even something as simple as newbord vaccinations will take at least 3 hours.Seek services elsewhere.
I would not let this man touch my dog!! when my daughter was 1 mth old she a uti and he kept telling me she had colic and never checked her. it got worse and she ended up getting spinal meningitis and now she cant walk cant talk and has epilepsy because he wanted a quick fix instead of finding out what was actually wrong with her. he is aweful!!
Dr Zeinomar is in my opinion the worst pediatrician in Panama City! Very poor bedside manner, rude, won't come to the hospital in an emergency. He is the most uncaring dr I have ever encountered! My children went to him for 6 years and he was good when he didn't have many patients but now that he has built his practice up he doesn't care about the patients anymore! Hard to get appointments, also it is hard to understand him. I am glad to have my children out of his care!!!!!!!!!!!!!
The Best Pediatric doctor in Panama City. Please do not let the reviews of people saying the wait is so long that it is not worth it. The wa...
Dr Zeinomar treated my children which is now 23 and 15 and he is also treating my grandson. And, will be treating our next addition to my family. Thanks for all you do
DR MOHAMMED ZEINOMAR should have his licence removed i went to him personally growing up as a child and i was in his office everyday for about 6-8 months with stomach problems and he told my mother that there was nothing wrong woth me and it was all in my head come to find out after about 1 year later my stomah problems were CRONES which can kill you let not mention DR ZEINOMAR is a specailist in the internal medical field so please be aware to all parents who take thier children there be careful of who treats your children i would not even give him one star but had to post this comment
Dr. Zeinomar is AWESOME! He and his staff have been there 100% for my daughter. He is very knowledgable! His staff is GREAT!
I`m not on Medicaid, I have insurance through my husbands work and was told about Dr.Zeinmonar from a friend. His staff is so friendly, they...
WE did not choose him as our pediatrician. I had worked very hard and put a lot of thought into who i wanted my babies doctor to be it was a...
We used Dr. Zeinomar for about 2 years. During that time, my 3 children were sick often, so we were there quite a bit. Every time we went ...


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My neighbor recommended David Green when I first needed to rent my South End Condo. David came highly recommended and our experience with him over the past five years has been great. David exceeded our expectations. He always managed to get us the top rent and then when we finally decided to sell our condo a couple of months ago, David sold it in one open house and we closed in four weeks. Throughout the sales process David guided us, made sure that the process was running smoothly. David is knowledgeable, expert, and a thorough professional. He understands the market very well and achieves best results for his clients. I highly recommend David Green.
David Green
2 Recent Sales (last 12 months)
Senior Vice President (10 years experience)
- Specialties:
- Buyer's Agent,
- Listing Agent,
- Relocation
Ratings & Reviews
After our disappointing experience with Mr. Green, we would not recommend him to others, especially to those who have little to no experience in the house-selling process. We feel that he did not act in our best interest.
Responsiveness: While he was quick to respond, his responses were often pushy, overlooking our thoughts and prioritizing his own/the buyers. For example, a significant number of our phone correspondences related to the buyer's needs. When a buyer was interested in visiting the house, he would notify us at the last minute. We would express that the times were highly inconvenient for us, but he would insist that the buyer had no other available time (without even proposing an alternate time to the buyer). As a result, we had to bend to their schedule and he rarely attempted to have them work around our schedule. Furthermore, he would often call us to find out about buyers' future needs, such as our current landscapers, energy providers, etc.
Process Expertise/Negotiation: Our house received an offer within the first week of showing. The offer was 5% less than our asking price and Mr. Green persuaded us to take it. He reasoned that most of the potential buyers had already seen the house. We have serious doubts about this as people continued to visit the house even when it was not up for viewing. We were not comfortable about agreeing, but Mr. Green heavily persuaded us to settle as soon as possible, insinuating that by foregoing this initial offer, it would be difficult to snatch an equivalent or better offer in the future. Many of our connections in the real estate industry were highly surprised that Mr. Green was so insistent, particularly because we were clearly uncomfortable with the offer. With major reluctance and discomfort, we signed over the house. He seemed more concerned about locking his commission, rather than securing an optimal price for the house. We later found that this is a common pressure tactic used by real estate agents to serve their own interest.
Mr. Green is knowledgeable in this area, however, he withheld certain key information from us. Our home sold on May 9, 2013, and the buyers set July 15 as the closing date (according to bank protocol). At this point in time, we had not secured another house to live in. We were under the impression that we had no choice but to find another home and move out on July 15, no exceptions - it was clearly distressing to find a new home and pack the old one in 60 days. A part-time realtor later told us that Mr. Green could have placed a condition in the contract stating that we did not have to leave the house, until we found another place to live in. He never mentioned this to us, despite the fact he knew we were scurrying to find a new place to live. When confronted, he defended himself by suggesting, "They never asked about it. There are a million things I know, but I don't tell my clients about everything... a clause like that would have made the house less appealing to the buyer." Not only was his response rude, but inexcusable. As first time sellers, there is no way we could have been aware of such a condition for us. Because this was not made known to us, we FRANTICALLY rushed to find another house to live in. Again, it seemed as though he wanted to secure his commission before serving our best interest.
Our closing date was July 15, 2013. We were scheduled to move into our new home on the same day. As the dates overlapped, we asked Mr. Green to communicate with the buyer's lawyer about us staying 2 extra days to transition more smoothly (and we agreed to pay $200/night for each extra day we stayed - a quote that he seemed to come up with without consulting their lawyer). After communicating with their lawyer, Mr. Green said it was fine to stay the extra two days, so we packed and scheduled the movers according to this timeframe. With a mere 5 days left to move, Mr. Green emailed us saying the lawyer did not agree to our two extra days. Therefore, the number of days we had left to pack went from 5 to 3. This made us question Mr. Green's process expertise. While the buyer's lawyer had more of a hand in this matter, but if Mr. Green had greater process expertise, he would have been able to foresee this possibility and advise us accordingly. Even Mr. Green appeared to be caught off guard by this event when we spoke to him - he said it was "totally out of his control". In fact, he began giving us reasons as to why we should abide to their timeframe (liability, etc). Not only was he caught off guard, he did not advocate for us.
Mr. Green always claimed that he acted in our best interest, however, his actions did not corroborate this. Above all, we did not feel he was respectful of us as first-time sellers in either conduct or demeanor. As it is, selling a home is a stressful experience and he did not make it any easier. Consequently, we would not recommend Mr. Green's services to anyone.
David brought a positive attitude and high energy level to the table. He was direct, accurate, respectful and honest in his approach and opinions .He was very professional in preparing the listing, showing the home, negotiationg with the buyers and was enjoyable to work with throughout the process. Working with David was easy and he was always readily available. I would highly recommend David to anyone that is listing their home for sale.
We worked with David on selling our home in Cambridge and also house hunting in the Greater Boston area. David is extremely knowledgeable about the buying and selling process. He is also very thorough and well informed regarding market conditions in the Boston area and surrounding suburbs. He was always available to answer our questions and hand hold us through the entire process. David is always a true professional and definitely the go-to guy for real estate in the Boston area.
David helped us find a home quickly, despite a challenging market in 2009. He also located a buyer for our prior home within days of listing!
We have remained in contact since our purchase and he provides excellent color on the real estate market, with specific insights to our neighborhood.
His relationship is greatly valued!
David Green has always been a pleasure to work with. I first met David through a recommendation of a broker that I was working with while purchasing a new condominium in a building under contruction. Since then, I have used David exclusively as my go to person for all of my real estate requirements in Boston. He is very involved in all aspects of the of the market. His integrity, honesty, hard work and knowledge of the market has made him my choice as the person to work with in Boston.
Since David was so successful with finding a tenant, I ultimately enlisted him to assist with selling another location, which is still in process. David has shown great professionalism and patience in a very challenging situation.
Bay far the best broker I ever worked with, David knows his stuff and goes over and above what is required of him. David has kept my condo rented continuously for the past 4 years, has dealt directly with the tenants, has helped me find resourses to renovate when required, he promptly returns phone calls and is extremely pleasant and polite to deal with.


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LibreOffice 4.4.2 Release Candidate 1 Is Now Available for DownloadSubmitted by Rianne Schestowitz on Tuesday 17th of March 2015 07:11:42 AM Filed under
A new development version for the next maintenance release of the acclaimed LibreOffice 4.4 office suite has been announced today, bringing a wide range of enhancements and bugfixes that improve the overall stability of the software on all supported operating systems, including GNU/Linux, Mac OS X, and Microsoft Windows.
Review: LibreOffice 4.4 raises the barSubmitted by Roy Schestowitz on Saturday 14th of March 2015 01:01:48 PM Filed under
The developers behind LibreOffice, the free and open source productivity suite forked from OpenOffice, have sweated and bled to advance the toolkit over the past couple of years. The effort has paid off: It's a no-brainer to recommend LibreOffice over OpenOffice, thanks to Libre's consistent release schedule and the increasingly polished quality of the product.
Now for the bigger question: Can you recommend LibreOffice in the same breath as Microsoft Office? The short answer: Maybe. To its credit, LibreOffice 4.4 handles old- and new-school Microsoft Office documents better than ever before -- no small feat considering how prohibitively complex such documents can be. If you plan on using LibreOffice as a drop-in replacement for Microsoft Office, know that document compatibility is still a roll of the dice -- but with each revision LibreOffice is improving the odds.
'Utterly unusable' MS Word dumped by SciFi author Charles StrossSubmitted by Roy Schestowitz on Saturday 14th of March 2015 11:23:31 AM Filed under
Stross is a long-time Linux user who only uses Word because the publishing industry expects he will. But he's not alone in loathing the necessity to do so: fellow UK science fiction writer Alastair Reynolds says the application "drives me to distraction."
Crowdfund campaign adds signed PDFs to LibreOfficeSubmitted by Rianne Schestowitz on Thursday 12th of March 2015 07:53:34 PM Filed under
Support for digital signatures in PDF documents is now included in LibreOffice, the Swiss open source community Wilhelm Tux announced earlier this week.
LibreOffice 4.3.6 Released as TDF Celebrates Three YearsSubmitted by Roy Schestowitz on Saturday 21st of February 2015 09:18:53 AM Filed under
The Document Foundation today announced the release of LibreOffice 3.4.6, the latest update for the conservative user and supported deployments. This release brings over 100 bug and security fixes as the foundation celebrates three years. TDF released a video as "a testimonial of the activity of many members of the LibreOffice community."
LibreOffice 4.3.6 "Still" Is Out with 110 FixesSubmitted by Rianne Schestowitz on Friday 20th of February 2015 06:26:04 PM Filed under
The Document Foundation announced the release of LibreOffice 4.3.6, which is a new maintenance version in this branch of the famous office suite.
Creating Forms for Easy LibreOffice Database Entry on LinuxSubmitted by Rianne Schestowitz on Friday 20th of February 2015 06:03:27 PM Filed under
The LibreOffice suite of tools includes a very powerful database application ─ one that happens to be incredibly user-friendly. These databases can be managed/edited by any user and data can be entered by anyone using a LibreOffice-generated form. These forms are very simple to create and can be attached to existing databases or you can create both a database and a form in one fell swoop.
There are two ways to create LibreOffice Base forms:
Form Wizard
Design View.
LibreOffice 4.4 review – Finally, it rocksSubmitted by Roy Schestowitz on Wednesday 18th of February 2015 07:13:57 PM Filed under
LibreOffice is the flagship office suite for Linux. It's also quite popular with Windows users. As a free, open-source and cross-platform solution, LibreOffice allows people to enjoy the world of writing, spreadsheets, presentations and alike without having to spend hefty sums of money. The only problem till now was that it didn't quite work as advertised. Microsoft Office support was, for the lack of a better word, lacking.
Version 4.4 is out, and it promises a great deal. A simplified interface, new looks, much improved proprietary file format support. Sounds exciting, and as someone who has lambasted LibreOffice for this very reason in the past, I felt compelled to give this new edition its due rightful try. On top of Plasma 5 no less. So let's see.
Spelling in MalawiSubmitted by Roy Schestowitz on Tuesday 17th of February 2015 12:51:09 AM Filed under
The inquiry from Malawi was passed to our local expert, Esben Aaberg, who after a few hours of work got the dictionary to work. Unfortunately dictionaries can not be registered without the language been known by LibreOffice. Instead, Esben "cheated" by using a language code from another language. Of course we need the language Chichewa registered, but here and now, it works after all.
Is LibreOffice better than the competitor?Submitted by Rianne Schestowitz on Monday 9th of February 2015 10:17:56 PM Filed under
Let's have a look at some of the areas where LibreOffice is actually BETTER than the competitor Microsoft Office.
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Latest Podcast [See All]
by Oscar Gonzalez | September 01, 2015
O.G. and Harlem talk about their newest addition: Rocket League. There are some other games but OMG ROCKET LEAGUE! [read more]
by Oscar Gonzalez | July 22, 2015
Most pro gamers are sponsored by some company or eSports team. In the past year, a handful of players are actually sponsored by other players. R/Kappa is a subreddit for those that enjoy fighting game streams, and in the past year, they've sponsored players from around the world to carry the Kappa flag. Subbreddit moderator and team manager, Dr. Mike, explains how he took over operations and was able to get some of the best players in the world to play for Team Kappa. [read more]
by Oscar Gonzalez | June 27, 2015
Harlem and O.G. go over all the events and news from E3 2015. [read more]
by Oscar Gonzalez | June 04, 2015
Harlem and O.G. return for another podcast. The two talk about the unneeded hype for Hatred, what's going to be shown at E3, and what the hell is going on with Silent Hills. [read more]
by Oscar Gonzalez | May 08, 2015
For months, the Gamergate debate has carried on, and now there's a plan for an official debate. Michael Koretzky, region 3 director for the Society of Professional Journalists, is organizing a special event to talk about Gamergate and ethics. [read more]
by Oscar Gonzalez | May 02, 2015
It's been a busy time for O.G. and Harlem. They've reunited to talk about what games they played in the past months, what happened at PAX South and what they're playing right now. [read more]
by Oscar Gonzalez | January 19, 2015
It's 2015, and O.G. and Harlem return for another podcast. They talk about the games they played, the upcoming PAX South, their GOTYs and a bit more e-drama going on in the world. [read more]
by Oscar Gonzalez | December 31, 2014
As 2014 comes to a close, O.G. talks with Micah Curtis from Techraptor about the rise and fall of Blistered Thumbs and the biggest story of 2014, #Gamergate. [read more]
by Oscar Gonzalez | December 19, 2014
Harlem and O.G. are back to talk about the latest games they've played. They discuss the removal and reappearance of Hatred from Steam, Target Australia pulling GTA V and getting ready for PAX South. [read more]
by Oscar Gonzalez | November 14, 2014
Harlem and O.G. go over some of the big news happening in the industry this holiday season. O.G. talks about The Evil Within while Harlem breaks down why WWE 2K15 is a disappointment. Then there's a little wrap up of what's going on with #Gamergate. [read more]
by Oscar Gonzalez | October 26, 2014
After a couple weeks off, O.G. and Harlem are back. The two talk about The Evil Within, a long history of wrestling video games and yes, more #Gamergate. [read more]
by Oscar Gonzalez | October 03, 2014
O.G. and Harlem did the podcast live this week. Harlem shares his impressions of Destiny, the two talk about the San Antonio Spurs being snubbed by 2K Sports and the latest #Gamergate news. [read more]
by Oscar Gonzalez | September 21, 2014
With no major releases out this week, O.G. and Harlem talk about the two biggest stories in gaming: Destiny and #Gamergate. [read more]
by Oscar Gonzalez | September 12, 2014
Harlem and O.G. are back to talk about the the ongoing drama of #Gamergate, the newly announced iPhone 6, why Microsoft is buying Minecraft for $2 billion and a bit about Destiny. [read more]
by Oscar Gonzalez | September 05, 2014
If you haven't heard, there's a war going on in gaming. Gamergate has changed the gaming community into a literal civil war with gamers battling against gamers. Enter Jordan Owen and the project he's working on, "The Sarkeesian Effect." Jordan explains about the project, where it originated from and how he's involved in this latest drama. [read more]
What's your most anticipated game for October?
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Let's Play - Her Story Pt. 1-3Her Story is a different take on the adventure genre formula. There's a mystery to be solved, but instead of solving puzzles or talking to people, all you have to do is search for the right video. ... [read more]
O.G. Preview - Skyhill is 99 floors of random horrorDeveloped by Mandragora Studio, Skyhill is a different take on the "survive the zombie apocalypse" gameplay. Rather than having a whole world to explore, Skyhill puts you in a hotel with 99 randomly-generated floors. ... [read more]
Latest Reviews
Batman: Arkham Knight Review: A fitting end for the Dark KnightRocksteady Studios did the unthinkable in 2009 by making a game based on a comic an actual GOTY contender. The follow-up, Arkham City, continued the pattern of quality and faithfulness to the comic making for another great game. To finish off the series, Rocksteady is back w... [read more]
Heroes of the Storm Review: The WoW of MOBAs is hereMOBAs are becoming more and more common as the competitive arena of choice. League of Legends and DotA changed the face of eSports by putting the new genre in the spotlight. Blizzard has entered the fray with their answer in the form of Heroes of the Storm.... [read more]
Dying Light Review: What happens when you do Dead Island correctlyZombie massacre simulator is the description that comes to mind when I think of Techland's Dying Light. With so many implements of undead doom at your disposal, you can easily lose yourself in trying every weapon and item you come across. The real question, though, is does t... [read more]