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Yuji Ashikawa, Zui Fujimoto, Haruko Noguchi, Hiroshi Habe, Toshio Omori, Hisakazu Yamane and Hideaki Nojiri
SummaryCarbazole 1,9a-dioxygenase (CARDO), a member of the Rieske nonheme iron oxygenase system (ROS), consists of a terminal oxygenase (CARDO-O) and electron transfer components (ferredoxin [CARDO-F] and ferredoxin reductase [CARDO-R]). We determined the crystal structures of the nonreduced, reduced, and substrate-bound binary complexes of CARDO-O with its electron donor, CARDO-F, at 1.9, 1.8, and 2.0 Å resolutions, respectively. These structures provide the first structure-based interpretation of intercomponent electron transfer between two Rieske [2Fe-2S] clusters of ferredoxin and oxygenase in ROS. Three molecules of CARDO-F bind to the subunit boundary of one CARDO-O trimeric molecule, and specific binding created by electrostatic and hydrophobic interactions with conformational changes suitably aligns the two Rieske clusters for electron transfer. Additionally, conformational changes upon binding carbazole resulted in the closure of a lid over the substrate-binding pocket, thereby seemingly trapping carbazole at the substrate-binding site.
Summary | Full Text | PDF (1743 kb) - Divergent Pathways in the Biosynthesis of Bisindole Natural Products
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Copyright © 2006 Elsevier Ltd All rights reserved.
Trends in Microbiology, Volume 14, Issue 9, 398-405, 1 September 2006
Microbial degradation of sulfur, nitrogen and oxygen heterocycles
Ping Xu , Bo Yu , Fu Li Li, Xiao Feng Cai and Cui Qing Ma
Sulfur (S), nitrogen (N) and oxygen (O) heterocycles are among the most potent environmental pollutants. Microbial degradation of these pollutants is attracting more and more attention because such bioprocesses are environmentally friendly. The biotechnological potential of these processes is being investigated, for example, to achieve better sulfur removal by immobilized biocatalysts with magnetite nanoparticles or by solvent-tolerant bacteria, and to obtain valuable intermediates from these heterocycles. Other recent advances have demonstrated the mechanisms of angular dioxygenation of nitrogen heterocycles by microbes. However, these technologies are not yet available for large-scale applications so future research must investigate proper modifications for industrial applications of these processes. This review focuses on recent progress in understanding how microbes degrade S, N and O heterocycles.


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[This is one in a series of profiles that will examine the strategies of corporations plugged into the startup community, whether through investments, acquisitions or partnerships.]
Venture investment in health care cratered in 2012. While others cut back, SR One charged ahead.
The venture arm of GlaxoSmithKline formed in 1985 and has steadily invested $30 million to $50 million annually. Seeing strong prospects at a time when many conventional venture firms had to sit it out, SR One invested more than $50 million last year, making eight new deals and eight follow-on investments, said Jens Eckstein, its president.
Produced by the editors of Dow Jones VentureWire, Venture Capital Dispatch tracks the fast-moving developments at the intersection of high-tech innovation and venture capital finance. Featuring the VentureWire reporting team in the Silicon Valley, New York, Boston and Shanghai tech centers, Venture Capital Dispatch provides insight into the newest start-ups and latest trends in venture capital investing. Write us at email@example.com. For more information on Dow Jones products covering venture capital and other financial markets, go to www.fis.dowjones.com.

subset: commoncrawl


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Radar is an acronym that stands for RAdio Detection And Ranging. A weather radar consists of a parabolic dish (it looks like a satellite dish) encased in a protective dome and mounted on a tower of up to five stories tall. About 150 NEXRAD (NEXt generation of weather RADar) Doppler radars were installed throughout the U.S. in the 1990s. The radar itself does not delineate between rain and snow but AccuWeather's proprietary algorithms do, based on atmospheric conditions. The state-level Snow/Ice/Rain (Standard) radar images update every 5 minutes on AccuWeather.com Premium, which also gives access to longer loops of radar data. The exclusive AccuWeather.com StormTimer(tm) plots the expected movement of significant storms over the next hour, and also gives access to storm details like hail and rotation. AccuWeather.com RadarPlus offers an interactive weather experience with street-level radar, satellite and lightning data, as well as PredictiveRadar which moves the current radar picture 4 hours into the future.
The long-lasting and relentless winter season has broken seasonal maintenance expenditure records across much of the U.S.
Read Story >Think Mount Vesuvius was a one-off event? Think again. Though the odds of their erupting may be slim, plenty of powerful volcanoes lie just outside cities around the world.
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Swap Force Spring Edition - Trigger Happy
Swap Force Spring Edition - Fryno
Swap Force Spring Edition - Punk Shock
Warnado was hatched in the fury of a rare and powerful Enchanted Twister. Although initially frightened and quite dizzy, over the passing years he grew to enjoy his whirling surroundings and learned many abilities and secrets of the Air Element. This led to Warnado becoming a powerful force and the only known turtle of his kind. Now, the only time he gets dizzy is when standing still.
Looking for a way to magically banish the Skylanders,Kaos poured through every dusty scroll and ancient tome he could find. Upon stumbling across a rare and extremely powerful spell, he began to recite its words. However, he sneezed midway through the incantation. As a result, instead of sending the Skylanders far away, Star Strike was plucked from her home in the distant cosmos and brought into Skylands. Surprised, Kaos thought he'd won a powerful new ally in the mysterious and reserved Star Strike. But she knew evil when she saw it and promptly unleashed her fierce magical powers on him. Word of her victory over Kaos spread quickly and she was soon asked by Master Eon to join the Skylanders.
Expand your Disney Infinity Toy Box fun with the Wreck-It Ralph Toy Box Pack featuring Disney Infinity Figures for Wreck-It Ralph and Vanellope. Use the Power Discs to customize your Toy Box to the world of Sugar Rush.
Disney Infinity Phineas Toy Box Set
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- Save £13.00
- Pre-order
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0 reviewDisney Infinity Phineas Toy Box Set
Expand your Disney Infinity Toy Box experience with the Phineas and Ferb Toy Box Pack featuring Disney infinity figures for Phineas and Agent P. Use the Power Discs to customise your entire Toy Box to the world of Phineas and Ferb.
Feeling mischievous? Join Sorcerer's Apprentice Mickey's spellbinding high jinks. With his magic sweep and bursts, he's got more moves under his Sorcerer's hat than a wizard in a wand shop. Abracadabra! Note: The Sorcerer's Apprentice Mickey Figure works in the Disney Infinity Toy Box for console systems, and is compatible with the Disney Infinity 3DS. Disney Infinity Starter Pack required and sold separately.
Smolderdash had always wanted to be a royal defender of the Fire Temple - home of the First Flame, a sacred torch that had been ignited by the original Fire Source. Unfortunately, she had been born during an eclipse and was believed by her people to be cursed, which prevented her from such an honour. But when Kaos stole the flame and used it to light the candles on his birthday cake, it was Smolderdash who went after it. Blazing like a comet, she dashed into Kaos' lair, repelled the troll security force with her flaming whip, and retrieved the sacred flame just before Kaos blew out the candles. Smolderdash returned home as a champion of her people and was finally granted the honour of becoming a royal defender. But she graciously declined, having set a new goal for herself - to help fight against Kaos as a member of the Skylanders.
Skylanders Swap Force Magna Charge is a hero with a magnetic personality who'll attract some awesome new adventures!
Magna Charge came from the great race of Ultron robots, but was mysteriously created with a giant magnet head, and like other Swap Force figures he can be transported into the video game itself to unlock new power ups and character combinations using the Portal of Power (sold separately for each console).
You can also mix and match the top and bottom halves of the characters to create even more unique in-game powers and abilities, with 16 to collect and more than 250 amazing combinations.
For even more fun why not collect other Swap Force figures including Rattle Shake (see item number 3KXNG), Hoot Loop (3XKNC) and Free Ranger (3XKNA).
Please Note: Skylanders Magna Charge is compatible with Skylanders Swap Force only and requires the Portal of Power (included in the SWAP Force Starter Pack) to be used in the game.
Useful info:
- Skylanders Swap Force Magna Charge
- Transport him into the game
- Compatible with 3DS, Wii, Wii U, PS3 and X Box 360
- Suitable for age 6 and above
When he was young, Grim Creeper visited the prestigious Grim Acres School for Ghost Wrangling, hoping to attend as a student. But when the Scaremaster interviewed him, he found that Grim didn't have any of the usual training that other students had. Because of this, he was turned away. However, as the young Grim was about to leave, a herd of rampaging ghosts suddenly flooded the school - carrying away the faculty and leaving the students to fend for themselves. Grim Creeper stood his ground - not only defending the other students, but using his amazing reaping talents to fight back the ghosts and contain them until help could arrive. Now a Skylander, Grim is considered one of the best reapers ever to swing a scythe, proving that studies alone are no substitute for bravery, passion and true heroic spirit.
Includes:Landmark pieceThe Lone RangerTonto


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Give structure to your garden. This set of 10 blue deck lights will help you add shape and design you will enjoy when the evening comes.
*Free delivery over £50 refers to home delivery orders placed on diy.com only. Charges refer to the value of goods being delivered and excludes delivery from stores or services. Excludes bulk delivery.
B&Q accepts the above cards and also offers a range of in-store financial services. Learn more
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Panache Tango ll Balconette Bra
This Tango ll balconette bra is a best selling Panache bra from the brand that's been flattering shapely figures for ten years now! With an underwired design this bra promises excellent support and a stunning shape.
The underwired balconette style of this piece gives a gorgeous shape under clothes. The Austrian embroidery is stylish and you'll love the colour update for the season ahead. It features three section cups for increased support and shape. The bow trim at the centre front is a feminine finish.
Wear this balconette bra by Panache under a scoop neck T-shirt or a fitted dress.
Useful info:
- Tango II balconette bra by Panache
- Fully laminated for a supportive fit
- Underwired design for shape and support
- Embroidered leaf design to cups
- Three section cups for increased support
- Bow trim finish to the centre front
- Soft plush on the front of the split straps on sizes GG plus
Sorbet Elegance Petal Embroidered Bras (2 Pack)
- Price
- £24.00
- In Stock
- Delivery
- Next day delivery available
5 reviewsSorbet Elegance Embroidered Bras (2 Pack)
These petal embroidered bras by Sorbet Elegance are the perfect pick me up for your day-to-evening lingerie drawer. In a pack of two these bras are excellent value.
These non padded bras feature an underwired design to give you great support and a natural shape. Petal embroidery shows off your fun, flirty and feminine style. The bow trim to front and detailing to the straps adds pretty detail to this everyday favourite. Available in three packs the mink/white is perfect under light clothing, while the pink/black adds a sultry piece of boudoir styling and the blue/white is a fresh update for spring.
Pair these petal embroidered bras with the matching embroidered briefs for a gorgeous coordinated style.
Please hand wash only.
Useful info:
- Bras by Sorbet Elegance
- Value pack of two
- Floral embroidery
- Bow detail to trim and straps
- Non padded; natural shape
- Underwired for great support
Sorbet Elegance Underwired Embroidered Bras (2 pack) – Black/White
This pack of two underwired bras by Sorbet Elegance is great value for your everyday lingerie drawer.
Non-padded full cups are part of a new and improved fit that flatter and shape your bust. Embroidered detail on top of the cups adds a classic vintage appeal. The gorgeous texture gives this everyday essential a flirty twist. Underwired and structured these bras give you great support as well as a natural uplifted shape for a confident finish.
Wear these bras with the matching high leg briefs by Sorbet Elegance for a coordinated lingerie look.
To keep these bras looking as good as the first time you wore them, please hand wash only.
Useful info:
- Underwired bras by Sorbet Boutique
- Great value pack of 2
- Embroidery to cups
- Non-padded, full cup
- Gives you great support
- Creates a natural uplifted shape
Fantasie Cotton Lined Speciality T-shirt Bra
Designed with cotton lined cups for comfort and breathability, this Fantasie underwired T-shirt bra is the perfect piece of lingerie for your everyday wardrobe.
The outershell is designed to offer you support while the smooth cups make this the ideal bra to wear under smooth fit tees. This a versatile and comfortable everyday cotton lingerie piece that's available in D-GG cup sizes.
Wear this Fantasie speciality bra with matching briefs. Wear under a jersey top or tee for a gorgeous shape.
Useful info:
- Speciality bra by Fantasie
- Underwired T-shirt bra
- Cotton lined cups for comfort
- Features an outershell for support
Bestform Non Wired Bra
People will notice your curves, but they won't know the Bestform soft lace trim bra is your secret.
You'll love the flexibility of this soft lace-trim Bestform bra and it's available in cup sizes from B to F. This non wired bra is cotton rich and the soft full cups promise total support. The lace trim complements the full coverage for a feminine bra that defines your curves. This bra is finished with a fastening to the back.Useful info:
- Soft non-wired bra by Bestform
- Soft full cups provide total support
- Cotton rich fabric with a lace trim
- Available in sizes 34B to 44F
Please note: The fibre content of this item may be different from that stated in the catalogue and on the website. The content which appears on the item is correct and the fabric used is ideal for the purpose.
Colours: Black, White. 74% cotton, 21% polyamide, 5% elastane. Cups: Cotton. Hand wash only. -
Sorbet Elegance Jacquard Underwired Bras (2 Pack)
- Price
- £20.00
- Low stock, selling fast
- Delivery
77 reviewsSorbet Elegance Jacquard Bras (2 pack)
With a lace trim these Sorbet Elegance bras are gently supportive and the underwired design gives you a beautiful shape for everyday wear.
These jacquard underwired bras feature feminine wider lace straps for an uplifted and enhanced natural shape. These bras are chic and elegant and we love the intricate lace detail for a pretty finish. In a pack of two these underwired bras are excellent value – an essential in your underwear wardrobe.
Wear these jacquard underwired bras with simple briefs or shorties for a stylish and comfortable everyday wear.
Useful info:
- Jacquard bras by Sorbet Elegance
- Value pack of two underwired bras
- Lace trim; wider straps for support
- Lifts your look for a natural shape
Playtex Sophisticated Tulle and Microfibre Bra
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- Was £29.00 to £30.00
- Now
- Now £14.50 to £30.00
- Save Up To £14.50
- In Stock
- Delivery
32 reviewsPlaytex Sophisticated Underwired Bra
This pretty embroidered tulle and soft microfiber Playtex bra comes with a three-part cup for the perfect rounded shape and support.
This Playtex bra features comfort cushions at end of underwires to prevent digging in. This is a great everyday bra and we love the subtle floral detail for a feminine feel.
Wear this Playtex Sophisticated tulle and microfiber bra with matching knickers for everyday chic.
Useful info:
- Sophisticated bra by Playtex
- Everyday underwired bra
- Tulle and microfiber design
- Comfort cushions prevent digging in
Fantasie Helena Full Cup Bra
The Helena underwired bra features a full cup for added coverage and support and we love the lace detail for a feminine feel with a subtle vintage twist.
This underwired bra features soft microfibre fabric and offers fantastic support and a great shape. The delicate stretch lace across the top cup ensures a comfortable fit that really flatters. This Helena full cup bra is great for wearing under tops and t-shirts for a confident all-day style that keeps you comfortable and stylish.
Wear this Fantasie full cup bra with matching briefs. Wear under a cowl neck top or dress for maximum shape and impact.
Useful info:
- Helena full cup bra by Fantasie
- Underwired bra; microfibre fabric
- Delicate stretch lace to the top cup
Playtex Lace Bras (2 Pack)
This value pack of two lace bras from Playtex is great for everyday use. With firm cups in pretty lace, these bras offer fantastic shape and support.
These Playtex lace bras feature wider straps for extra support and adjusters at the front for easier use. These bras are available in a pack of one black and one white, or one white and one nude. You'll love the fit of these bras for easy everyday wear that keeps you comfortable throughout the day.
Wear these Playtex lace bras with maxi briefs for a smooth and confident silhouette.
Useful info:
- Lace bras by Playtex
- Value pack of two bras
- 'Cross Your Heart' design
- Available in sizes B-DD
Intimates Solutions Minimiser Bras (2 Pack) - Black/Nude, Black/White
- Price
- £16.00
- In Stock
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92 reviewsIntimates Solutions Minimiser Bras (2 pack) - Black/White, Black/Nude
These minimiser bras are a great value piece of everyday underwear. These bras subtly reduce a larger bust by one cup size whilst giving you a natural shape.
These minimiser bras have a simple design that promises a chic shape. These bras promise a comfortable fit that culminates in a flattering shape. These minimiser bras feature adjustable straps.
These minimiser bras by Intimates Solutions are great for larger busts. Wear as an everyday favourite for a comfortable bra.
Useful info:
- Minimiser bras by intimates Solutions
- Value pack of two minimiser bras
- Reduce bust by one cup size; natural shape
Playtex Beauty Lift Bra
The classic Beauty Lift bra from Playtex features the famous "Cross your Heart" design. This bra promises comfort and support for all day wear that lifts your look.
This Playtex bra offers all the support and shape of an underwired bra, but with the comfort of a non-wired bra. This bra is available in a range of sizes from B to G and the pretty all-over lace and rose trim at the centre front is a detailed finish.
Wear this Playtex Beauty lift bra with maxi briefs for the ultimate feminine silhouette this season.
Useful info:
- Beauty lift bra by Playtex
- Features 'Cross your Heart' design
- Promise shape and comfort
- Available in sizes B to G
Colour: White. 85% polyamide, 15% elastane. Hand wash only. -
Sorbet Elegance Underwired Embroidered Bras (2 pack) – Coral/White, Strawberry/Violet
This pack of two underwired bras by Sorbet Elegance is great value for your everyday lingerie drawer.
Non-padded full cups are part of a new and improved fit that flatter and shape your bust. Embroidered detail on top of the cups adds a classic vintage appeal. In a range of bright colours these bras are the perfect pick to freshen up your summer underwear collection. The gorgeous texture gives this everyday essential a flirty twist. Underwired and structured these bras give you great support as well as a natural uplifted shape for a confident finish.
Wear these bras with the matching high leg briefs by Sorbet Elegance for a coordinated lingerie look.
To keep these bras looking as good as the first time you wore them, please hand wash only.
Useful info:
- Underwired bras by Sorbet Boutique
- Great value pack of 2
- Embroidery to cups
- Non-padded, full cup
- Gives you great support
- Creates a natural uplifted shape
- One pack contains one coral and one white bra
- Other pack contains one strawberry and one violet bra


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Devils take down Capitals, 3-2, in Washington
WASHINGTON — The Devils appeared to be running out of chances.
Down a goal and staring down a possible three-game losing streak, they had wasted three consecutive power plays in the first half of the third period, including a two-man advantage for 1:39.
That's when newcomer Andrei Loktionov stepped up and made his first big play as a Devil.
Loktionov scored on a rebound to tie the game 9:19 into the third period and Ilya Kovalchuk blasted home a 5-on-3 power-play 2:21 later as the Devils pulled out a 3-2 victory over the Washington Capitals at Verizon Center.
The Devils had lost three of their past four games (1-2-1) following a five-game winning streak and were facing a Caps team that has won just five of its first 16 games. So, though it wasn't the prettiest of victories, they were in no position to be picky.
"It wasn't textbook, there's a lot of things we need to work on, but we found a way to win against a very desperate team," Devils coach Pete DeBoer said. "We'll take the two points and get ready for Saturday."'
The teams will meet again Saturday afternoon at Verizon Center in this rare two-game series in a same city. The Devils are hoping Thursday's win will spark them out of their funk.
"You're going to go through times when the team game is not there, and you've just got to find a way," said left wing Patrik Elias, who scored a short-handed goal and set up Kovalchuk's winner. "By no means was it a perfect game by us today. We did some good things, but we did some bad things, too. So, we're happy with the two points, but we've still got to get better. We've got to keep building."
The Devils acquired Loktionov in a Feb. 6 trade with Los Angeles for a 2013 fifth-round draft pick. They sent him to Albany initially, but called up the 22-year-old center Sunday when they sent struggling center Jacob Josefson down.
"I didn't know a lot about him," DeBoer admitted. "[Josefson] gave us dependability, versatility and a little bit of offense, and we were hoping for the same thing out of him."


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Dresses are my go to item; I just love a good dress! Swing dresses are the best because they're comfy and girly, two words you can rarely put in the same sentence.
Plus you can wear just about ANY stinkin shoe and BOOM you have a brand new outfit. Chucks? Ankle Boots? Wedges? Perfection.
Introducing my 2nd Spring Staple: The Swing Dress
See my previous Spring Staple HERE


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Microsoft Dynamics AX (Axapta) ERP solution provides organizations a purpose-built foundation across five industries, along with comprehensive, core ERP functionality for financial, human resources and operations management. IBM can help you make the most of your investments in Microsoft Dynamics AX through our Microsoft Dynamics consulting and implementation services. IBM is a leader in ERP services, with several decades of experience working with organizations of all sizes, across industries.
Deciding on an ERP solution and an implementation partner is often a difficult exercise. There are several factors to consider and the stakes are high since the success of the implementation in most cases depends on selecting the right solution and partner.
Microsoft Dynamics AX – Powerfully Simple
Microsoft Dynamics AX 2012 is purpose-built for organizations in manufacturing, public sector, services, retail and distribution, delivering industry-specific capabilities out-of-the-box. Microsoft Dynamics AX provides more business value faster, enables agility and insight in your organization, and helps drive faster adoption, broader usage, and easier maintenance and upgrade. Microsoft Dynamics AX is built to deliver pervasive interoperability, which provides greater productivity and data integrity.
Why Choose Microsoft Dynamics AX?
Powerful: Gain more value faster with a single, powerful solution that supports industry-specific and operational demands across your global enterprise.
Agile: Expand business opportunities, modify processes, and differentiate your business with ERP software that provides unprecedented agility.
Simple: Drive user involvement and innovation with a business management solution that is simple to use, deploy, and manage—and deliver easy access to data and processes.
How IBM Can Help
IBM Global Business Services can help you deploy industry-specific Microsoft Dynamics AX 2012 solutions for your business and integrate them with your heterogeneous IT environment to ensure optimal productivity and the best return on your investments. IBM has deep industry expertise, business strategy and program governance experience and template management skills along with tools and methodologies for accelerated deployment of Microsoft solutions. You can benefit from our Microsoft technology expertise and our ability to offer infrastructure, hardware, software and financing that make complete business solutions for your business needs. IBM application management services can ensure that your applications are optimized, responsive and available to users when they need them. And if you need help deciding on the right ERP solution for your business, we can help there too; using our tried and tested 5-step methodology we can help you define requirements, develop a vision and select the right ERP solution.
Why IBM?
IBM is an industry leader in ERP implementations, as recognized by independent analysts such as Gartner and Forrester. IBM is the leader in solution implementation accelerators; we are committed to developing leading industry based methods, assets, and templates to accelerate implementation and maximize return on investment. Unlike smaller regional systems integrators who often find it difficult to manage complex or global projects and struggle with scalability, IBM has the expertise, global presence and scale to help your business grow. Our experts not only understand the Microsoft Dynamics AX solution, but also have the process and industry experience to address your particular challenges and needs. This becomes especially important with Microsoft Dynamics AX 2012 since a more experienced partner can help you get more out of this powerful and advanced application.
IBM has a long standing and strong relationship with Microsoft: IBM's Microsoft practice has been a member of the Microsoft Certified Partner program since 1995 and IBM today is one of the largest globally managed Microsoft partners. IBM is a recognized Microsoft technology leader—our solutions include the entire suite of Microsoft products and technologies. IBM is also the only firm involved in joint development with Microsoft on .NET industry based standards and high-end clustering solutions at the IBM Kirkland Lab. IBM has several thousands of Microsoft skilled resources in our global Microsoft Practice/Partners and over 75% of our consultants are Microsoft Certified.
We're here to help
Easy ways to get the answers you need.
- Email us
Call us at 1-877-IBM-ACCESS (1-877-426-2223)1-877-IBM-ACCESS (1-877-426-2223)
Mention priority code 601BN01W
Case studies
- IBM Application Services Support Scandinavian Tobacco Group (586KB)
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Related Offerings
- ERP solutions for midsize businesses
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Two Black Hills State University graduates recently passed all four sections of the Certified Public Accountant (CPA) exam on the first attempt. Only about one in ten candidates nationwide pass all four parts in one attempt.
Susan Schofield, a 2005 graduate, was one of 206 South Dakota candidates that sat for 274 parts of the exam during the 2007 testing period.
Jennifer Rice, a 2004 graduate, was one of 213 South Dakota candidates that sat for 293 parts of the exam in 2006. Rice is currently an auditor for Casey Peterson & Associates, LTD in Rapid City.
Schofield and Rice were two of eight CPA candidates statewide to pass all four parts of the exam in one sitting. According to Don Altmyer, associate business professor at BHSU, the impressive fact that South Dakota candidates pass the CPA exam at a rate above the national average indicates the two BHSU graduates are at the top of their field.
Black Hills State University faculty, staff, and students are transforming lives and making headlines with their achievements. Below you will find our most recent headlines. Articles are archived monthly and are available by following the links on the right. Email firstname.lastname@example.com or call 605.642.6215 to share your news item.
Visit here for 1999 to 2006 News Archives
CONTACT INFORMATION: Black Hills State University Office of Admissions 1200 University St. Unit 9502 Spearfish, SD 57799-9502 605.642.6343 email@example.com
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A closer view of a fuel assembly being handled during refueling. The spent fuel assemblies are transferred underwater to a building adjacent to the reactor where they are kept in a pool underwater. Each assembly is 12 feet high. This is a photo of a presentation shown by a Seabrook Station employee.
October 1, 2010 10:25 AM PDT
Photo by: Martin LaMonica
| Caption by: Martin LaMonica
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- Home
- Trip Planning
- The Mountain
- The Village
- Things to Do
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- Lessons, Rentals & Teams
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Squaw Valley lift tickets and season passes also give you access to Lake Tahoe ski resort Alpine Meadows! Squaw Valley's amazing sister mountain is just 10-minutes away, and free shuttles depart from each resort every half-hour.
Visit Alpine MeadowsCelebrate Fall with Resort at Squaw Creek's Harvest Festival. Featuring live music, a beer garden, daily activities including family friendly music, arts and crafts, hay rides, and more. Six Peaks Grille will be offering a pumpkin-themed harvest dinner for just $30/person and Sweet Potatoes Deli will delight your taste buds with treats like apple tarts and pumpkin bisque.


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grinding - Search Results
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Bevel Gear Grinding Machines
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Grinding Wheels & Abrasive Tools
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Articles About grinding
1 Fillet Geometry of Ground Gear Teeth (January/February 1989)
This article investigates fillet features consequent to tooth grinding by generating methods. Fillets resulting from tooth cutting and tooth grinding at different pressure angles and with different positions of grinding wheel are compared. Ways to improve the final fillet of the ground teeth with regard to tooth strength and noise, as well as the grinding conditions, are shown. "Undergrinding" is defined and special designs for noiseless gears are described.
2 Influence of CBN Grinding on Quality and Endurance of Drive Train Components (January/February 1991)
The merits of CBN physical characteristics over conventional aluminum oxide abrasives in grinding performance are reviewed. Improved surface integrity and consistency in drive train products can be achieved by the high removal rate of the CBN grinding process. The influence of CBN wheel surface conditioning procedure on grinding performance is also discussed.
3 A Wheel Selection Technique for Form Gear Grinding (May/June 1986)
Until recently, form gear grinding was conducted almost exclusively with dressable, conventional abrasive grinding wheels. In recent years, preformed, plated Cubic Boron Nitride (CBN) wheels have been introduced to this operation and a considerable amount of literature has been published that claim that conventional grinding wheels will be completely replaced in the future. The superior machining properties of the CBN wheel are not disputed in this paper.
4 Grinding Bevel Gears on Cylindrical Gear Grinding Machines (January/February 1994)
Power train designs which employ gears with cone angles of approximately 2 degrees to 5 degrees have become quite common. It is difficult, if not impossible, to grind these gears on conventional bevel gear grinding machines. Cylindrical gear grinding machines are better suited for this task. This article will provide an overview of this option and briefly introduce four grinding variation possibilities.
5 Innovative Concepts for Grinding Wind Power Energy Gears (June 2009)
This article shows the newest developments to reduce overall cycle time in grinding wind power gears, including the use of both profile grinding and threaded wheel grinding.
6 Gear Grinding 1995 (July/August 1995)
Gear grinding is one of the most expensive and least understood aspects of gear manufacturing. But with pressures for reduced noise, higher quality and greater efficiency, gear grinding appears to be on the rise.
7 Producing Profile and Lead Modifications in Threaded Wheel and Profile Grinding (January/February 2010)
Modern gearboxes are characterized by high torque load demands, low running noise and compact design. In order to fulfill these demands, profile and lead modifications are being applied more often than in the past. This paper will focus on how to produce profile and lead modifications by using the two most common grinding processesthreaded wheel and profile grinding. In addition, more difficult modificationssuch as defined flank twist or topological flank correctionswill also be described in this paper.
8 CBN Gear Grinding - A Way to Higher Load Capacity (November/December 1993)
Because of the better thermal conductivity of CBN abrasives compared to that of conventional aluminum oxide wheels, CBN grinding process, which induces residual compressive stresses into the component, and possibly improves the subsequent stress behavior. This thesis is the subject of much discussion. In particular, recent Japanese publications claim great advantages for the process with regard to an increased component load capacity, but do not provide further details regarding the technology, test procedures or components investigated. This situation needs clarification, and for the this reason the effect of the CBN grinding material on the wear behavior and tooth face load capacity of continuously generated ground gears was further investigated.
9 Profile Grinding Gears From The Solid - Is It Practical (May/June 1997)
It isn't for everyone, but... Within the installed base of modern CNC gear profile grinding machines (approximately 542 machines worldwide), grinding from the solid isn't frequent, but a growing number of gear profile grinder users are applying it successfully using CBN-plated wheels.
10 Gear Grinding Comes of Age (July/August 1995)
In the quest for ever more exacting and compact commercial gears, precision abrasives are playing a key production role - a role that can shorten cycle time, reduce machining costs and meet growing market demand for such requirements as light weights, high loads, high speed and quiet operation. Used in conjunction with high-quality grinding machines, abrasives can deliver a level of accuracy unmatched by other manufacturing techniques, cost-effectively meeting AGMA gear quality levels in the 12 to 15 range. Thanks to advances in grinding and abrasive technology, machining has become one of the most viable means to grind fast, strong and quiet gears.
11 Gear Failure Analysis Involving Grinding Burn (January/February 2009)
When gears are case-hardened, it is known that some growth and redistribution of stresses that result in geometric distortion will occur. Aerospace gears require post case-hardening grinding of the gear teeth to achieve necessary accuracy. Tempering of the case-hardened surface, commonly known as grinding burn, occurs in the manufacturing process when control of the heat generation at the surface is lost.
12 Winds of Change in Profile Grinding (May/June 2004)
Recent breakthroughs in profile grinding software are helping Anderson Precision Gears and others meet wind powers insatiable appetite for faster production of large, high-quality gears.
13 Grinding Induced Changes in Residual Stresses of Carburized Gears (March/April 2009)
This paper presents the results of a study performed to measure the change in residual stress that results from the finish grinding of carburized gears. Residual stresses were measured in five gears using the x-ray diffraction equipment in the Large Specimen Residual Stress Facility at Oak Ridge National Laboratory.
14 Gear Grinding Gets Integrated at IMTS 2012 (October 2012)
The latest machines, tooling and technology for gear grinding were featured at IMTS 2012.
15 Technological Fundamentals of CBN Bevel Gear Finish Grinding (November/December 1985)
The bevel gear grinding process, with conventional wheels, has been limited to applications where the highest level of quality is required.
16 Gear Grinding 2003 (November/December 2003)
The benefits of ground gears are well known. They create less noise, transmit more power and have longer lives than non-ground gears. But grinding has always been thought of as an expensive process, one that was necessary only for aerospace or other high-tech gear manufacturing.
17 Enhanced Product Performance--Through CBN Grinding (September/October 1988)
Modern manufacturing processes have become an ally of the product designer in producing higher quality, higher performing components in the transportation industry. This is particularly true in grinding systems where the physical properties of CBN abrasives have been applied to improving cycle times, dimensional consistency, surface integrity and overall costs. Of these four factors, surface integrity offers the greatest potential for influencing the actual design of highly stressed, hardened steel components.
18 Grinding of Spur and Helical Gears (July/August 1992)
Grinding is a technique of finish-machining, utilizing an abrasive wheel. The rotating abrasive wheel, which id generally of special shape or form, when made to bear against a cylindrical shaped workpiece, under a set of specific geometrical relationships, will produce a precision spur or helical gear. In most instances the workpiece will already have gear teeth cut on it by a primary process, such as hobbing or shaping. There are essentially two techniques for grinding gears: form and generation. The basic principles of these techniques, with their advantages and disadvantages, are presented in this section.
19 Liebherr LFG Grinding Machine (May 2013)
This machine concept facilitates highly productive profile grinding for large workpieces. The range for external and internal gears comprises models for manufacturing workpieces up to 2,000 millimeters for industrial gear units, wind power, and marine propulsion applications
20 Guidelines for Modern Bevel Gear Grinding (August 2008)
This paper acknowledges the wide variety of manufacturing processes--especially in grinding--utlized in the production of bevel gears...
21 Grinding and Abrasives (May/June 2004)
Flexibility and productivity are the keywords in todays grinding operations. Machines are becoming more flexible as manufacturers look for ways to produce more parts at a lower cost. What used to take two machines or more now takes just one.
22 Hard Gear Finishing With CBN-Basic Considerations (May/June 1998)
For over 50 years, grinding has been an accepted method of choice for improving the quality of gears and other parts by correcting heat treat distortions. Gears with quality levels better than AGMA 10-11 or DIN 6-7 are hard finished, usually by grinding. Other applications for grinding include, but are not limited to, internal/external and spur/helical gear and spline forms, radius forms, threads and serrations, compressor rotors, gerotors, ball screw tracks, worms, linear ball tracks, rotary pistons, vane pump rotators, vane slots, and pump spindles.
23 Gear Grinding Techniques Parallel Axes Gears (March/April 1985)
The fundamental purpose of gear grinding is to consistently and economically produce "hard" or "soft" gear tooth elements within the accuracy required by the gear functions. These gear elements include tooth profile, tooth spacing, lead or parallelism, axial profile, pitch line runout, surface finish, root fillet profile, and other gear geometry which contribute to the performance of a gear train.
24 Gear Grinding With Dish Wheels (September/October 1999)
The grinding of gears with dish wheels (Maad type grinding machines) is widely viewed as the most precise method of gear grinding because of the very short and simple kinematic links between the gear and the tool, and also because the cutting edges of the wheels represent planar surfaces. However, in this grinding method, depending on the parameters of the gears and one of the adjustments (such as the number of teeth encompassed by the grinding wheels), so-called overtravel at the tip or at the root of the teeth being ground generally occurs. When this happens, machining with only one wheel takes place. As a result, the profile error and the length of the generating path increases while productivity decreases.
25 Surface Damage Caused by Gear Profile Grinding and its Effects on Flank Load Carrying Capacity (September/October 2004)
Instances of damage to discontinuous form ground and surface-hardened gears, especially of large scale, have recently increased. This may be attributed partly to a faulty grinding process with negative effects on the surface zones and the surface properties.
26 A Split Happened on the Way to Reliable, Higher-Volume Gear Grinding (September/October 2005)
Bevel gear manufacturers live in one of two camps: the face hobbing/lapping camp, and the face milling/grinding camp.
27 Hard Finishing By Conventional Generating and Form Grinding (March/April 1991)
The quality of a gear and its performance is determined by the following five parameters, which should be specified for each gear: Pitch diameter, involute form, lead accuracy, spacing accuracy, and true axis of rotation. The first four parameters can be measured or charted and have to be within tolerance with respect to the fifth. Pitch diameter, involute, lead, and spacing of a gear can have master gear quality when measured or charted on a testing machine, but the gear might perform badly if the true axis of rotation after installation is no longer the same one used when testing the gear.
28 CNC Bevel Gear Generators and Flared Cup Gear Grinding (July/August 1993)
New freedom of motion available with CNC generators make possible improving tooth contact on bevel and hypoid gears. Mechanical machines by their nature are inflexible and require a special mechanism for every desired motion. These mechanisms are generally exotic and expensive. As a result, it was not until the introduction of CNC generators that engineers started exploring motion possibilities and their effect on tooth contact.
29 Grinding Gears for Racing Transmissions (September/October 2009)
When you push 850 horsepower and 9,000 rpm through a racing transmission, you better hope it stands up. Transmission cases and gears strewn all over the racetrack do nothing to enhance your standing, nor that of your transmission supplier.
30 CNC Gear Grinding Methods (May/June 1997)
Grinding in one form or another has been used for more than 50 years to correct distortions in gears caused by the high temperatures and quenching techniques associated with hardening. Grinding improves the lead, involute and spacing characteristics. This makes the gear capable of carrying the high loads and running at the high pitch line velocities required by today's most demanding applications. Gears that must meet or exceed the accuracy requirements specified by AGMA Quality 10-11 or DIN Class 6-7 must be ground or hard finished after hear treatment.
31 CNC Controlled CBN Form Grinding (May/June 1984)
Borazon is a superabrasive material originally developed by General Electric in 1969. It is a high performance material for machining of high alloy ferrous and super alloy materials. Borazon CBN - Cubic Born Nitride - is manufactured with a high temperature, high pressure process similar to that utilized with man-made diamond. Borazon is, next to diamond, the hardest abrasive known; it is more than twice as hard as aluminum oxide. It has an extremely high thermal strength compared to diamond. It is also much less chemically reactive with iron, cobalt or nickel alloys.
32 Optimization of the Gear Profile Grinding Process Utilizing an Analogy Process (November/December 2006)
In order to grind gears burn-free and as productively as possible, a better understanding of the process is required.
33 The XL Gears Project (January/February 2014)
Much of the existing guidelines for making large, high-performance gears for wind turbine gearboxes exhibit a need for improvement. Consider: the large grinding stock used to compensate for heat treatment distortion can significantly reduce manufacturing productivity; and, materials and manufacturing processes are two other promising avenues to improvement. The work presented here investigates quenchable alloy steels that, combined with specifically developed Case-hardening and heat treatment processes, exhibits reduced distortion and, in turn, requires a smaller grinding stock.
34 What to Know About Bevel Gear Grinding (September/October 2005)
Guidelines are insurance against mistakes in the often detailed work of gear manufacturing. Gear engineers, after all, can't know all the steps for all the processes used in their factories.
35 Influence of Grinding Burn on Pitting Capacity (August 2008)
This paper intends to determine the load-carrying capacity of thermally damaged parts under rolling stress. Since inspection using real gears is problematic, rollers are chosen as an acceptable substitute. The examined scope of thermal damage from hard finishing extends from undamaged, best-case parts to a rehardening zone as the worst case. Also, two degrees of a tempered zone have been examined.
36 Grinding, Finishing and Software Upgrades Abound (March/April 2011)
Machine tool companies are expanding capabilities to better accommodate the changing face of manufacturing. Customers want smaller-sized equipment to take up less valuable floor space, multifunctional machines that can handle a variety of operations and easy set-up changes that offer simplified operation and maintenance.
37 Mirror Finishing of Tooth Surfaces Using A Trial Gear Grinder With Cubic-Boron-Nitride Wheel (November/December 1986)
In conventional gear grinders, grinding wheels with Alundum grains and a hardness of about 2000 HV have been used for finishing steel gears with hardnesses up to about 1000HV. In this case, the accuracy of the gears ground is greatly affected by wear of the grinding wheel because the difference in hardness is comparatively small when the gears are fully hardened.
38 Lower Grinding Costs and Better Workpiece Quality by High Performance Grinding with CBN Wheels (January/February 1986)
A considerable improvement in the performance of the machining of hard to grind materials can be achieved by means of CBN wheels.
39 The Art of Versatility - Grinding at Gear Expo and EMO (October 2013)
Whether you spent time at Gear Expo in Indianapolis or EMO in Hannover, there was certainly new technology attracting attention. Machine tools are faster, more efficient and can integrate numerous functions in a single setup. Grinding technology is turning science upside down and inside out with high-speed removal rates and increased throughput.
40 Generation of Helical Gears with New Surface Topology by Application of CNC Machines (January/February 1994)
Analysis of helical involute gears by tooth contact analysis shows that such gears are very sensitive to angular misalignment leading to edge contact and the potential for high vibration. A new topology of tooth surfaces of helical gears that enables a favorable bearing contact and a reduced level of vibration is described. Methods for grinding helical gears with the new topology are proposed. A TCA program simulating the meshing and contact of helical gears with the new topology has been developed. Numerical examples that illustrate the proposed ideas are discussed.
41 Liebherr Touts Technology at Latest Gear Seminar (June/July 2013)
For two days in Saline, Michigan, Liebherr's clients, customers and friends came together to discuss the latest gear products and technology. Peter Wiedemann, president of Liebherr Gear Technology Inc., along with Dr.-Ing. Alois Mundt, managing director, Dr.-Ing. Oliver Winkel, head of application technology, and Dr.-Ing. Andreas Mehr, technology development shaping and grinding, hosted a variety of informative presentations.
42 Gear Grinding Fundeamentals (September/October 1989)
This article deals with certain item to be taken into consideration for gear grinding, common problems that arise in gear grinding and their solutions. The discussion will be limited to jobbing or low-batch production environments, where experimental setup and testing is not possible for economic and other reasons.
43 Delivering Big Gears Fast (May 2013)
When a customer needed gears delivered in three weeks, heres how Brevini Wind got it done.
44 Designing Hardened & Ground Spur Gears to Operate With Minimum Noise (May/June 1994)
When designing hardened and ground spur gears to operate with minimum noise, what are the parameters to be considered? should tip and/or root relief be applied to both wheel and pinion or only to one member? When pinions are enlarged and he wheel reduced, should tip relief be applied? What are the effects on strength, wear and noise? For given ratios with enlarged pinions and reduced wheels, how can the gear set sized be checked or adjusted to ensure that the best combination has been achieved?
45 Holroyd Launches New Gear Grinder (January/February 2005)
New machine promises DIN 2 accuracy and unique features at low cost.
46 How Are You Dealing with the Bias Error in Your Helical Gears (May 2009)
This paper initially defines bias errorthe twisted tooth phenomenon. Using illustrations, we explain that bias error is a by-product of applying conventional, radial crowning methods to produced crowned leads on helical gears. The methods considered are gears that are finished, shaped, shaved, form and generated ground. The paper explains why bias error occurs in these methods and offers techniques used to limit/eliminate bias error. Sometimes, there may be a possibility to apply two methods to eliminate bias error. In those cases, the pros/cons of these methods will be reviewed.
47 IMTS 2012 Product Preview (September 2012)
Previews of manufacturing technology related to gears that will be on display at IMTS 2012.
48 Opportunities for Gear Grinders - Insights from the Machinery Front (July/August 2005)
Tom Lang of Kapp Technologies shares his views on the trends affecting ground gears.
49 Drake's Newest Thread Grinder Utilizes Robot Load-Unload System (July/August 2006)
The GS:TE-LM thread grinder from Drake Manufacturing is fitted with a robot load/unload system that provides maximum throughput for high-volume production of ground threads.
50 HMC Lassos World's Largest Gear Grinder (June 2008)
Hofler Rapid 6000 Makes North American Debut at Highway Machine Company.
51 Hard Gear Finishing (March/April 1988)
Hard Gear Finishing (HGF), a relatively new technology, represents an advance in gear process engineering. The use of Computer Numerical Controlled (CNC) equipment ensures a high precision synchronous relationship between the tool spindle and the work spindle as well as other motions, thereby eliminating the need for gear trains. A hard gear finishing machine eliminates problems encountered in two conventional methods - gear shaving, which cannot completely correct gear errors in gear teeth, and gear rolling, which lacks the ability to remove stock and also drives the workpiece without a geared relationship to the master rolling gear. Such a machine provides greater accuracy, reducing the need for conventional gear crowning, which results in gears of greater face width than necessary.
52 Effects of Gear Surface Parameters on Flank Wear (January/February 2009)
Non-uniform gear wear changes gear topology and affects the noise performance of a hypoid gear set. The aggregate results under certain vehicle driving conditions could potentially result in unacceptable vehicle noise performance in a short period of time. This paper presents the effects of gear surface parameters on gear wear and the measurement/testing methods used to quantify the flank wear in laboratory tests.
53 An Experimental Study on the Effect of Power Honing on Gear Surface Topography (January/February 1999)
Gear noise associated with tooth surface topography is a fundamental problem in many applications. Operations such as shaving, gear grinding and gear honing are usually used to finish the gear surface. Often, gears have to be treated by a combination of these operations, e.g. grinding and honing. This is because gear honing operations do not remove enough stock although they do create a surface lay favorable for quiet operation. See Fig. 1 for typical honing process characteristics. Gear grinding processes, on the other hand, do remove stock efficiently but create a noisy surface lay.
54 Parallel Axis Gear Grinding: Theory & Application (November/December 2000)
The goal of gear drive design is to transit power and motion with constant angular velocity. Current trends in gear drive design require greater load carrying capacity and increased service life in smaller, quieter, more efficient gearboxes. Generally, these goals are met by specifying more accurate gears. This, combined with the availability of user-friendly CNC gear grinding equipment, has increased the use of ground gears.
55 Gear Inspection Chart Evaluation; Specifying Unusual Worm Gear Sets (November/December 1991)
Question: When evaluating charts from a gear inspection machine, it is sometimes found that the full length of the profile traces vary, and that sometimes they are less than the length of active profile (above start of active profile-SAP) by up to 20%. This condition could be caused by a concentricity error between tooth grinding and shaping, or by unequal stock removal when grinding. (See Fig. 1.) Is it possible that some of the variation is coming from the inspection machine? How can variation from the inspection machine be reduced?
56 The Advantages of Ion Nitriding Gears (November/December 1996)
When it comes to setting the standard for gear making, the auto industry often sets the pace. Thus when automakers went to grinding after hardening to assure precision, so did the machine shops that specialize in gearing. But in custom manufacturing of gears in small piece counts, post-heat treat grinding can grind away profits too.
57 Surface Fatigue Life on CBN and Vitreous Ground Carburized and Hardened AISA 9310 Spur Gears (January/February 1990)
Spur gear surface endurance tests were conducted to investigate CBN ground AISI 9310 spur gears for use in aircraft applications, to determine their endurance characteristics and to compare the results with the endurance of standard vitreous ground AISI 9310 spur gears. Tests were conducted with VIM-VAR AISI 9210 carburized and hardened gears that were finish ground with either CBN or vitreous grinding methods. Test conditions were an inlet oil temperature of 320 K (116 degree F), an outlet oil temperature of 350 K (170 degree F), a maximum Hertz stress of 1.71 GPa (248 ksi), and a speed of 10,000 rpm. The CBN ground gears exhibited a surface fatigue life that was slightly better than the vitreous ground gears. The subsurface residual stress of the CBN ground gears was approximately the same as that for the standard vitreous ground gears for the CBN grinding method used.
58 Selection of the Optimal Parameters of the Rack-Tool to Ensure the Maximum Gear Tooth Profile Accuracy (January/February 1999)
An analysis of possibilities for the selection of tool geometry parameters was made in order to reduce tooth profile errors during the grinding of gears by different methods. The selection of parameters was based on the analysis of he grid diagram of a gear and a rack. Some formulas and graphs are presented for the selection of the pressure angle, module and addendum of the rack-tool. The results from the grinding experimental gears confirm the theoretical analysis.
59 The Barkhausen Noise Inspection Method for Detecting Grinding Damage in Gears (November/December 2002)
When hardened steel components are ground, there is always the possibility of damage to the steel in the form of residual stress or microstructural changes. Methods for detecting this sort of damage have always had one or more drawbacks, such as cost, time, complexity, subjectivity, or the use of hazardous chemicals.
60 Performance of Skiving Hobs in Finishing Induction Hardened and Carburized Gears (May/June 2003)
In order to increase the load carrying capacity of hardened gears, the distortion of gear teeth caused by quenching must be removed by precision cutting (skiving) and/or grinding. In the case of large gears with large modules, skiving by a carbide hob is more economical than grinding when the highest accuracy is not required.
61 Detroit in 97 - the Biggest Gear Expo Ever (July/August 1997)
"A Decade of Performance" is the theme of the American Gear Manufacturers Association Gear Expo 97, to be held October 19-22 at Detroit's Cobo Hall. Products and services related to every aspect of the gear manufacturing process, from turning and grinding the blanks to coating and inspection of the gears,will be represented at the show.
62 The Two-Sided-Ground Bevel Cutting Tool (May/June 2003)
In the past, the blades of universal face hobbing cutters had to be resharpened on three faces. Those three faces formed the active part of the blade. In face hobbing, the effective cutting direction changes dramatically with respect to the shank of the blade. Depending on the individual ratio, it was found that optimal conditions for the chip removal action (side rake, side relief and hook angle) could just be established by adjusting all major parameters independently. This, in turn, results automatically in the need for the grinding or resharpening of the front face and the two relief surfaces in order to control side rake, hook angle and the relief and the relief angles of the cutting and clearance side.
63 Don't Panic (July/August 2000)
I'm a big believer in the value of IMTS as a marketplace where gear manufacturers can go and look at the latest machine tools and processes; compare hobbing machines, gear grinders and inspection equipment; see turning, milling or grinding machines in action; and ask questions of the various vendors all in one place. This year's IMTS promised to be the biggest ever, and I have no doubt that it will be a valuable experience to those who go there looking for ways to improve the way they manufacture products.
64 Net-Shape Forged Gears - The State of the Art (January/February 2002)
Traditionally, high-quality gears are cut to shape from forged blanks. Great accuracy can be obtained through shaving and grinding of tooth forms, enhancing the power capacity, life and quietness of geared power transmissions. In the 1950s, a process was developed for forging gears with teeth that requires little or no metal to be removed to achieve final geometry. The initial process development was undertaken in Germany for the manufacture of bevel gears for automobile differentials and was stimulated by the lack of available gear cutting equipment at that time. Later attention has turned to the forging of spur and helical gears, which are more difficult to form due to the radial disposition of their teeth compared with bevel gears. The main driver of these developments, in common with most component manufacturing, is cost. Forming gears rather than cutting them results in increased yield from raw material and also can increase productivity. Forging gears is therefore of greater advantage for large batch quantities, such as required by the automotive industry.
65 KHV Planetary Gearing (November/December 1987)
Traditionally, a worm or a multi-stage gear box has been used when a large speed ratio is required. However, such boxes will become obsolete as size and efficiency become increasingly important considerations for a modern transmission. The single-enveloped worm gear has a maximum speed ratio of only 40 to 60. Its efficiency is only 30 to 60 per cent. The necessity of using bronze for the worm gear and grinding nitoalloy steel for the worm drives up material and manufacturing costs.
66 Low Pressure Carburizing with High Pressure Gas Quenching (March/April 2004)
High demands for cost-effectiveness and improved product quality can be achieved via a new low pressure carburizing process with high pressure gas quenching. Up to 50% of the heat treatment time can be saved. Furthermore, the distortion of the gear parts could be reduced because of gas quenching, and grinding costs could be saved. This article gives an overview of the principles of the process technology and the required furnace technology. Also, some examples of practical applications are presented.
67 Hypoloid Gear with Small Shaft Angles and Zero-to-Large Offsets (November/December 2009)
Beveloid gears are used to accommodate a small shaft angle. The manufacturing technology used for beveloid gearing is a special setup of cylindrical gear cutting and grinding machines. A new development, the so-called Hypoloid gearing, addresses the desire of gear manufacturers for more freedoms. Hypoloid gear sets can realize shaft angles between zero and 20° and at the same time, allow a second shaft angle (or an offset) in space that provides the freedom to connect two points in space.
68 Dearborn Precision Puts Dual Purpose Zeiss CMM to the Task (May 2011)
When parts you manufacture pass through numerous processes such as deep hole drilling, machining, hobbing and grinding, a CMM is essential when your customers require 100 percent in-process and final inspection.
69 Comparative Load Capacity Evaluation of CBN-Finished Gears (May/June 1990)
Cubic boron nitride (CBN) finishing of carburized gearing has been shown to have certain economic and geometric advantages and, as a result, it has been applied to a wide variety of precision gears in many different applications. In critical applications such as aerospace drive systems, however, any new process must be carefully evaluated before it is used in a production application. Because of the advantages associated with this process, a test program was instituted to evaluate the load capacity of aerospace-quality gears finished by the CBN process as compared to geometrically identical gears finished by conventional grinding processes. This article presents a brief description of the CBN process, its advantages in an aerospace application, and the results of an extensive test program conducted by Boeing Helicopters (BH) aimed at an evaluation of the effects of this process on the scoring, surface durability, and bending fatigue properties of spur gears. In addition, the results of an x-ray diffraction study to determine the surface and subsurface residual stress distributions of both shot-peened and nonshot-peened CBN-ground gears as compared to similar conventionally ground gears are also presented.
70 George Wyss & Dennis Richmond of Reishauer Corporation (July/August 1995)
For this interview, we spoke with George Wyss, president, and Dennis Richmond, vice president of Reishauer Corporation about gear grinding and its place in gear manufacturing today.
71 EDM Specialty Gears (May/June 1996)
The capabilities and limitations of manufacturing gears by conventional means are well-known and thoroughly documented. In the search to enhance or otherwise improve the gear-making process, manufacturing methods have extended beyond chip-cutting - hobbing, broaching, shaping, shaving, grinding, etc. and their inherent limitations based on cutting selection and speed, feed rates, chip thickness per tooth, cutting pressure, cutter deflection, chatter, surface finish, material hardness, machine rigidity, tooling, setup and other items.
News Items About grinding
1 Burka-Kosmos Offers Latest Grinding Wheel (February 3, 2014)
The Mira Ice product line of gear grinding wheels was developed in order to meet the requirements of profile grinding larger gears. A new... Read News
2 United Grinding to Display Innovations at GrindTec 2014 (January 27, 2014)
United Grinding, the largest single-source provider of complete and integrated grinding solutions, will showcase its latest grinding, ero... Read News
3 Makinos New Grinding Machining Center Grinds, Drills, Bores and Mills on the Same Machine (January 9, 2007)
Makino introduced the G5 Grinder horizontal machining center, capable of grinding, drilling, boring and milling all on the same machine.... Read News
4 Kapp Offers Advancements in Gear Grinding (April 23, 2012)
Two grinding machines with flexible process capabilities will be on display at booth N-7036 at the IMTS in Chicago, Illinois, September 1... Read News
5 Ultra Grind Offers Two Meter Grinding Capacity (July 31, 2012)
The Hardinge Grinding Group introduces a new 2-meter capacity, UltraGrind 2000 grinding machine manufactured by Jones & Shipman, a Ke... Read News
6 Schafer Gear Adds New Grinding Equipment (May 24, 2007)
Schafer Gear Works invested in new production equipment, including new gear grinding machines in the company's South Bend, IN, and Ro... Read News
7 Service Network and Worcester Polytechnik Launch Grinding Consortium (April 14, 2006)
Service Network is spearheading an effort with Worcester Polytechnic Institute to form a grinding research center located in Worcester, M... Read News
8 Supertec to Present Seven New Grinding Machines at IMTS (June 16, 2010)
Supertec Machinery will exhibit seven new grinding machine models/types at this year's IMTS. They will be located in the Grinding Pav... Read News
9 Grinding Wheel Improves Surface Finish (October 29, 2009)
The SK23w ceramic grinding wheel specification from Burka-Kosmos drastically increases the Q'w and V'w rates. This type of grindi... Read News
10 Kapp's Rotor Grinding Technology Improves Efficiency by 30 Percent (June 15, 2007)
The Kapp RX 59 allows the rotors used in air compressors to be manufactured on the machines by using a high precision grinding process.Ro... Read News
11 Gleason Offers Wobble Compensation in Gear Grinding (December 27, 2012)
Conventional grinding cycles for cylindrical gears typically involve a significant amount of time dedicated to the manual alignment of th... Read News
12 CIMCOOL 609 Designed for Grinding Performance (June 29, 2011)
CIMCOOL Fluid Technology has created CIMTECH 609, an innovative hybrid developed for superior grinding performance and excellent machinin... Read News
13 EMAG Offers Hard Turning and Grinding Advantages (March 12, 2013)
The advantages of the process combination hard turning + grinding lie in process stream consolidation, improved component quality and gre... Read News
14 C&B Machinery Offers Clamp Bore Disc Grinding Machine (November 22, 2013)
C & B Machinery has received multiple orders for its latest generation Model CBV-3 Clamp Bore disc grinding machine. The automotive i... Read News
15 Oelheld Develops HSS Grinding Oil (January 24, 2014)
SintoGrind HSS was especially developed for profile and flute grinding of steel alloys and in particular for High-Speed-Steel and medical... Read News
16 Sigma Pool Merges All Grinding Activities (February 7, 2005)
Sigma Pool partners have merged all activities in the field of cylindrical gear grinding under the roof of Liebherr-Verzahntechnik GmbH i... Read News
17 Körber Schleifring Becomes United Grinding (November 12, 2013)
Körber Schleifring, a global provider of grinding machine technology and its North American arm United Grinding Techologies are now ... Read News
18 Samputensil Introduces High Capacity Grinding Machine (January 6, 2006)
The new 250G generating grinding machine from Samputensili, introduced at EMO 2005 was developed to achieve a shorter cycle time. Acco... Read News
19 United Grinding?s Newest Machine Grinds Shafts and Chucked Workpieces (April 11, 2006)
[photo] The Studen S242 from United Grinding is designed for the hard turning and grinding of high-precision applications for both shaf... Read News
20 Nortons New Gear Grinding Wheels Increase Life of Parallel Axis Spur Gears (April 11, 2006)
The new BRGg VPHS high speed grinding wheels from Saint Gobain are designed to reduce cycle times by increasing metal removal rates. The ... Read News
21 New Depressed Center Wheels Introduced by Camel Grinding Wheels (April 6, 2006)
CGW-Camel Grinding Wheels has introduced Fast Cut Series Aluminum Oxide Type 27 Depressed Center Wheels with N-grade bond for right angle... Read News
22 Bryant Celebrates 100 Years of Grinding (November 24, 2008)
Bryant Grinder, a division of Vermont Machine Tool Corporation, is celebrating its 100th anniversary in 2009, making it one of the olde... Read News
23 Cinetec Grinding Moves Headquarters to Hagerstown, Maryland (May 29, 2007)
Cinetic Landis Grinding Corp. relocated its headquarters and manufacturing/assembly facility approximately 15 miles to Hagerstown, MD. ... Read News
24 Holroyd Sells Grinding Machines to Chinese Company (December 20, 2011)
U.K.-based Holroyd Machine Tools and Components of Milnrow, Lancashire, a division of the Precision Technologies Group, has announced the... Read News
25 Holroyd Launches Worm Gear Grinding Stations (May 31, 2013)
Holroyd Precision Limited has launched a brand new, full CNC machine range that is specifically designed to provide ultra-high levels of ... Read News
26 Norton Grinding Abrasives Feature Bond Technology (June 20, 2013)
Norton Abrasives, a brand of Saint-Gobain, has developed and launched Norton Vitrium3, the next generation of bonded abrasives prod... Read News
27 3M Introduces Cubitron II Conventional Wheels for Gear Grinding (November 1, 2013)
3M Abrasive Systems is introducing 3M Cubitron II Conventional Wheels for Gear Grinding, giving engineers new tools to take the manufactu... Read News
28 PTG to Showcase Grinding in Germany (February 12, 2014)
PTG Deutschland GmbH, the German-based division of Britain's Precision Technologies Group, has chosen GrindTec 2014 to showcase its... Read News
29 Gleason Offers Profile Grinding on Threaded Wheel Gear Grinding Machines (March 27, 2013)
Gleason Corporation recently announced the availability of a Profile Grinding option for its 300TWG Threaded Wheel Grinding Machine... Read News
30 Saint-Gobain Introduces Grinding App (August 27, 2012)
Saint-Gobain Abrasives has recently introduced a Norton Abrasives Grinding App. This application includes three calculators includi... Read News
31 Dapra Offers Grinding and Deburring Tools (October 3, 2011)
Dapra's series of Biax hand-held, air-powered tools include lightweight grinders and variable-speed deburring machines. The SRD 3-55/... Read News
32 Klingelnberg Opens Blade Grinding Center in Mexico (October 27, 2011)
In August 2011, Klingelnberg's Mexico site was moved to a new facility in Querétaro City. This investment is part of the compa... Read News
33 United Grinding Invites Customers to Grinding Symposium (March 5, 2014)
The United Grinding Group – Körber Schleifring up until EMO 2013 – has clearly understood the signs of the times in the ... Read News
34 Gleason Improves Quality for Large Gear Grinding (April 23, 2010)
Gleason's latest generation of Profile Grinding Machines now can be equipped to perform a new process called OPTI-GRIND that signific... Read News


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Asian Pacific Americans in the United States Congress
Date: February 1, 2010
Creator: Tong, Lorraine H.
Description: Asian Pacific Americans have served in both houses of Congress representing California, Hawaii, Louisiana, Oregon, Virginia, American Samoa, and Guam. They have served in leadership positions, including committee and subcommittee chairmanships. This report presents information on Senators, Representatives, and Delegates, including party affiliations, length and dates of service, and committee assignments.
Contributing Partner: UNT Libraries Government Documents Department
Non-Governmental Organizations' Activities in North Korea
Date: March 25, 2011
Creator: Taylor, Mi Ae & Manyin, Mark E.
Description: This report looks at the activities and effectiveness of non-governmental organizations (NGOs) - non-profit, charitable institutions - in the lives of ordinary North Koreans. The role of NGOs in North Korea may re-emerge as a congressional interest, as the Obama Administration has expressed interest in restarting humanitarian assistance to North Korea.
Contributing Partner: UNT Libraries Government Documents Department
Nuclear Weapons R&D Organizations in Nine Nations
Date: February 28, 2011
Creator: Medalia, Jonathan
Description: This report describes the organizations controlling research and development (R&D) on nuclear weapons in several nations, and presents a brief history of the organizations controlling nuclear weapons R&D in the United States. It discusses whether these organizations are civilian or military, though in many nations the lines between civilian and military are blurred.
Contributing Partner: UNT Libraries Government Documents Department


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Staden Main QuarryDerbyshire, ENGLANDClimbs 75 – Rocktype Limestone – Altitude 460m a.s.l – Faces NE
Crag features
Weather forecast
Guidebooks Climbs at this cragLimited parking at a specific spot in Cowdale (SK 084722, past first houses on right, space where road swings left - BMC Access Notice) Cowdale is reached from the A6 Bakewell to Buxton Rd. Access details on the notice MUST BE FOLLOWED to ensure access (4 min). *** ACCESS CURRENTLY PROHIBITED *** (UPDATED 17 MAR 11) Following the rejection of the application mentioned below, permissive access is currently banned - the land is in private ownership and there is no public access to it. However, the landowner has stated that this is not a permanent exclusion and has said that he will restore concessionary access for climbers after a second planning application for the water bottling plant and an appeal against refusal of an earlier application have been determined. He has clarified this by stating that restoration of concessionary access is not dependent upon the outcome of the planning process - access will be restored "whatever the outcome, one way or another". Until then he has insisted that there is no concessionary access and has asked climbers to keep away. See: http://www.ukclimbing.com/news/item.php?id=61028 ACCESS UPDATE 21 JAN 10 The quarry (also known as Cowdale Quarry) is under threat from a major industrial development. There is a planning application in to build a mineral water bottling plant (High Peak Borough Council Ref. HPK/2009/0723). If successful, access to the crag may change.
Classifieds Moderator Updates to this page are checked by UKC volunteer Whealiebob


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Andrew Thomas Huang: Björk "Mutual Core"
Andrew Thomas Huang creates a luscious, tectonic vision for Björk's "Mutual Core". Following up on the promise of his haunting short film, Solipsist, this music video sensually combines vfx and practical effects. The editing and overall arc keep a tight pace, feeling purposeful where experimental and abstract film can sometimes drift.
One thought on "Andrew Thomas Huang: Björk "Mutual Core""
This stuff is insane! Love it on so many levels. Composting, energy, visual language. Congrats to Andrew.


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This Blooming Prairie quilt set is just lovely. The beautiful patchwork floral pattern adds a charming touch to your decor. Breathe new life into your bedding collection with this floral quilt set. In blue/multi.
- Quilt reverses to a floral pattern for decorative options.
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- Set includes: quilt, sham(s) & decorative pillow(s)
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©Kiddicare 2014


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Lowest gas prices near USC
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Are you your school's biggest fan? Have you ever painted your face, gotten up before the sun rises or yelled until you lost your voice all in the name of college football? If you said yes to any of these your school needs you now!
EA SPORTS is inviting YOU the college football fans to showcase your passion in a brand new NCAA Football cover vote. Voting for all 126 teams is now open on the NCAA Football Facebook page and will continue through December 31st. In addition to the main polls, there will be plenty of other ways fans can support their favorite team and push them into the round of 32. Throughout the month we'll be showcasing specific rivalries, conferences, traditions, and college football legends, and every single fan interaction counts as a vote. Liking posts, sharing stories with friends, voting on rivalries and leaving comments all count as supporting your school; so be loud, be proud and make yourself heard. We'll also be providing regular updates throughout the process so you'll know exactly where your team stands and what you need to do to make sure they advance into the next round.
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Vote for schools from Air Force to Missouri
Vote for schools from Navy to Wyoming
Download and share school specific assets to show your support for your school at http://ncaafootballcovervote.newslinevine.com


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Nemco 6000A-1A Single Bulb Freestanding Heat Lamp - Compact, 120V
- Adjustable height
- Includes (1) clear, 250 watt infrared bulb
- Compact depth
- NSF Listed
- NSF Listed
Companion Items
Specs | |
Width | 14 Inches |
Depth | 11 1/4 Inches |
Height | 22 Inches |
Amps | 2.1 Amps |
Hertz | 60 |
Phase | 1 |
Voltage | 120 Volts |
Wattage | 250 Watts |
Control Type | On/Off |
Heating Method | Infrared |
Material | Aluminum |
Number of Bulbs | 1 |
Power Type | Electric |
Sneeze Guard | No |
Type | Countertop |
Keep your most popular foods at optimum serving temperatures with the Nemco 6000A-1A compact single bulb freestanding heat lamp. Designed to attractively display customer favorites while maintaining desired temperatures, this unit has an adjustable height that makes it perfect for controlling heat intensity on baked goods, fried delights, and fun finger foods! Plus, it's 14" compact depth is great for applications with limited space!
Great for use in busy fast food restaurants, concession stands, or snack bars, this warmer blends in with any decor thanks to its sturdy steel frame and classic reflector-style aluminum hoods. Each unit has one clear 250 watt infrared bulb. It also includes a 6' cord with NEMA 5-15P plug requiring a 120V electrical connection. NSF Listed. Please consult the Specification Sheet for additional measurements.
Overall Dimensions:
Width: 14"
Depth: 11 1/4"
Height: 22"
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please note this in the comment section while checking out! Please feel free to log on to our Live Chat should you have any questions
before placing your order. After your order is placed, we will update you via email to let you know how this will be shipping to you.
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Published August 05, 2013, 08:53 PM
West Fargo students create an app that is gaining national attention
West Fargo, ND (WDAY TV) - A group of soon to be 7th grade West Fargo students has created an app that has gained statewide, and now national attention. The purpose? To get more people to recycle.


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Teaching middle school is not for the faint of heart. But if you're called to do it, you know there's nothing else quite like it. Join us in discussing what works - and what doesn't.
Calming Parental Anxiety While Empowering Our Digital Youth
The group FOSI.org, has many resources that help with parental understanding and family acceptance of the use of technology. They also have an upcoming conference in Washington DC in November which is free to educators.
Bonnie Bracey SUtton


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"Martha Speaks" is an animated series that is designed to enrich the vocabulary of 4- to 7-year-olds. The series is based on the classic books by Susan Meddaugh that have charmed and captivated millions of children. Each episode uses Martha's unique linguistic abilities and the hilarious consequences to engage kids and help build their vocabulary skills.
Visit the Website: http://pbskids.org/martha/
The Opera Contest / Maestro Martha
Martha: Deadline Doggie / It's The Giant Pumpkin, Ma
Td's Magic / Scaredy Cat
- Friday, March 14th at 6:30 AM on KLRU
Verb Dog, When Action Calls! / Martha's Adverb Adven
Martha Acts Up / Ronald Is In
Myth Me? / Td's Myth Take
The Dog Did It / Martha Out West
Return Of The Bookbots: The Case Of The Missing Wo
- Friday, March 21st at 6:30 AM on KLRU
Patrol Dog Martha / The Crooning Crook Caper
Martha's Slumber Party Of The Weird / Return To Mart
Eyes On The Skies / Camp Truman
Bulldozer Versus Dinosaur! / Carolina Tackles Footba
The Long Rotten Summer / The Case Of The Shattered
- Friday, March 28th at 6:30 AM on KLRU


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APA and Affiliated Journals
Qualitative Psychology
This journal creates an outlet for innovative methodological and/or theoretical work that advances qualitative inquiry in psychology.
Journal of Latina/o Psychology
This journal is committed to publishing scholarly writing on research, practice, advocacy, education, and policy relevant to Latino communities, including issues such as immigration, health and multigenerational families.
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APA Journal Articles in the News
- Personality May be Key Risk Factor in Preventive Health Care
Conscientious young adults enjoy better health as they age, research finds
March 11, 2014 - Black Boys Viewed as Older, Less Innocent Than Whites, Research Finds
Police likelier to use force against black children when officers "dehumanize" blacks, study says
March 6, 2014
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Salve Regina's cultural and historic preservation program provides an understanding and appreciation of archaeology, architectural history and historic preservation planning through an exciting mixture of coursework and fieldwork.
As one of only 10 undergraduate historic preservation programs nationwide certified by the National Council for Preservation Education, we offer our students a unique opportunity to explore the relationship between the past and present as well as participate in local and global preservation projects.
Centered in historic Newport, we urge students to get involved in meaningful projects on campus and in the community. Whether restoring an old cemetery, documenting an African-American church or excavating and analyzing remains during our summer Archeological Field School, our students gain extensive hands-on experience in the living laboratory of our city.
Students are also exposed to the global nature of historic preservation through courses like World Heritage Management, and we encourage majors to study abroad to enhance their learning experience. In addition, our active academic club transports students to culturally significant sites around the world.
Our program boasts an exceptional graduate school placement record, with the majority of our majors entering directly into such advanced degree programs as preservation, archaeology and urban planning.
The American landscape is rich in cemeteries, ranging from 17th-century family burying grounds to 18th-century churchyards to "garden cemeteries" from the time of the American Civil War. This course introduces students to cemetery landscapes, iconographic analysis of markers and techniques of preservation. Students and faculty collaborate on a thorough study of a local cemetery, tracing its history and mapping its preservation needs.
Melissa Andrade '14 spent her summer interning with the Newport Historical Society, a local nonprofit focused on preserving the city's history, culture and buildings. Under the guidance of executive director Ruth Taylor, Andrade helped to plan a yearlong project, "Spectacle of Toleration."
We encourage students to pursue internships with local agencies, providing them with the opportunity to test their interest and skills in specific fields of preservation. Recent placements have included the Newport Restoration Foundation, the Coggeshall Farm Museum, the Rhode Island Historical Preservation and Heritage Commission and the National Park Service.


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Hi, everyone! Please submit any questions for fertility expert Dr. Arthur Wisot by 10pm tonight. See you tomorrow for the lastest Wisdom from Wisot Wednesdays!
Infertility Diaries follows the journey of women trying to get pregnant in the face of various reproductive challenges.
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Google motivates users with New Year's resolutions map
People around the world can now share their goals for 2013 in an interactive map, whether it's to make more money, spend time with their families, or travel to new places.
Google is aiming to harness people's motivation to carry out their New Year's resolutions and then use that to help others achieve their goals. Be it lose weight, make more money, learn a new language, or travel more, users can see what people around the world are striving for on Google's new interactive resolution map.
"Research shows that you're more likely to achieve your resolutions if you write them down and have support," Google's Associate Product Marketing Manager Liz Wessel wrote in a blog post yesterday. "Try sharing your goals with communities around you."
Related stories
Some of the postings include, "Play guitar just a couple minutes everyday" in the U.S., "Living with my boyfriend" in Portugal, "Quit smoking" in Russia, "Work less, earn more" in South Africa, and "Eat less sweets" in Brazil.
Users can also add their own resolutions to the map by selecting the most appropriate category and adding in a postal code and country name. The resolutions take between 24 and 48 hours to post to the map.