Linde Canada to demonstrate welding effectiveness

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USA: GE, Sandia National Lab Discover Pathway to Quieter, More Productive Wind Turbines

first_imgGE Global Research, the technology development arm of the General Electric Company (GE), today announced research that could significantly impact the design of future wind turbine blades. Utilizing the power of high-performance computing (HPC) to perform complex calculations, GE engineers have overcome previous design constraints, allowing them to begin exploring ways to design reengineered wind blades that are low-noise and more prolific power-producers.Partnering with the Sandia National Laboratories (Sandia) in Albuquerque, New Mexico, GE’s work focused on advancing wind turbine blade noise prediction methods. Aerodynamic blade noise is the dominant noise source on modern, utility-scale wind turbines and represents a key constraint in wind turbine design. Efforts to reduce blade noise can help reduce the cost of wind energy and increase power output. In fact, GE predicts a 1 decibel quieter rotor design would result in a two-percent increase in annual energy yield per turbine. With approximately 240GW of new wind installations forecasted globally over the next five years, a two-percent increase would create 5GW of additional wind power capacity. That’s enough to power every household in New York City, Boston, and Los Angeles, combined.“There’s no question, aerodynamic noise is a key constraint in wind turbine blade design today,” said Mark Jonkhof, Wind Technology Platform Leader at GE Global Research. “By using high-performance computing to advance current engineering models that are used to predict blade noise, we can build quieter rotors with greater blade tip velocity that produce more power. This not only means lower energy costs for consumers, but also a significant reduction in greenhouse gas emissions.” Jonkhof added: “Having access to Sandia’s supercomputer was invaluable in our ability to conduct these experiments and make discoveries that will bolster wind power’s potential. Access and availability to HPC resources offers a critical advantage to companies trying to compete in a global environment.”To ensure that GE’s wind blades do not pose noise issues today, airfoil level acoustic measurements are performed in wind tunnels, field measurements are done to validate acceptable noise levels, and noise-reducing operating modes are implemented in the control system. Better modeling will help maintain the current low noise levels while boosting output.“Sandia and other DOE national laboratories are using high-performance computing resources to tackle complex design problems in wind energy, such as reducing turbine blade noise to achieve significant reductions in cost-of-energy. Sandia helped GE gain valuable insights into blade noise mechanisms and how design engineers can improve their models,” said Matt Barone, of Sandia’s Aerosciences Department, formerly of the Wind Energy Technologies Department.GE’s testing involved Sandia’s Red Mesa supercomputer running a high-fidelity Large Eddy Simulation (LES) code, developed at Stanford University, to predict the detailed fluid dynamic phenomena and resulting wind blade noise. For a period of three months, this LES simulation of the turbulent air flow past a wind blade section was continuously performed on the Red Mesa HPC. The resulting flow-field predictions yielded valuable insights that were used to assess current engineering design models, the assumptions they make that most impact noise predictions, and the accuracy and reliability of model choices.“We found that high fidelity models can play a key role in accurately predicting trailing edge noise,” Jonkhof went on to say. “We believe that the results achieved from our simulations would, at the very least, lay the groundwork for improved noise design models.” [mappress]Press release, August 15, 2013; Image: GElast_img read more

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Top news, May 23 – 29, 2016

first_imgTidal Energy Today has compiled the top news from tidal and wave energy industry from May 23 – 29, 2016.CHEC out of Swansea tidal game. TLP makes internal changesTidal Lagoon Power plans to retender the marine works package for the Swansea Bay tidal lagoon project after parting ways with China Harbour Engineering Company (CHEC) which was last year selected as the preferred bidder for the delivery of marine works. In addition, Mike Unsworth has been named as TLP’s new Director of Engineering and Construction, replacing Andrew McNaughton, who joined TLP last year.MarineSpace to assist in SeaGen decommissioningAtlantis Resources has hired Marine Space to provide consenting support for the decommissioning and removal of the SeaGen device from Strangford Lough in Northern Ireland. MarineSpace will be responsible for the delivery of the environmental impact assessment for the decommissioning along with securing the necessary permissions for work to commence.James Fisher scores £2.8M Wave Hub jobUnder the £2.8 million contract, James Fisher has been hired by Wave Hub for the installation of four 33 kV rated cable tail extensions from the current dry mate connectors to four developer berths offshore Hayle.Seatricity to share Oceanus 2 dataSeatricity has announced plans to publish core performance data from its recently deployed wave energy converter Oceanus 2 at Wave Hub test site. Seatricity will compare the performance of the device with the theoretical predictions for a full range of wave, weather and tidal conditions, after which the data will be publicly shared.WES teams up with EMEC for wave studyWave Energy Scotland (WES) has started a new project with the European Marine Energy Centre (EMEC) to capture the wealth of knowledge and experience amassed in Orkney through testing wave energy devices in real sea conditions. Results from the study are expected to support and inform the wave energy converter (WEC) designs currently under development.Tidal Energy Todaylast_img read more

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VIDEO: 10-year-old boy donates 600 shoes

first_img SHARE Published: August 8, 2016 3:16 PM EDT Updated: August 8, 2016 3:17 PM EDT Do you see a typo or an error? Let us know. A North Carolina 10-year-old boy helped donate shoes for hundreds of children in need. VIDEO: 10-year-old boy donates 600 shoes last_img

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Withers partner profits soar by 40%

first_imgMargaret RobertsonPartner profits at Withers have soared by over 40% in a bumper year for the international firm, which announced it was furloughing staff in April.According to figures for the year ended 30 June, profit per equity partner rose by 42% to £501,000, while profit stands at £42.1m. Revenue is up 14% at £219.7m.Chief executive Margaret Robertson said: ‘Going into lockdown, we had a full pipeline of work and had experienced a very good financial year thanks to investments made in the prior few years. Although the final three months of the year were quieter in some areas, client demand actually grew in dispute resolution, technology and estate planning and structuring.‘This all led to a strong financial performance. We are approaching next year cautiously but, as a firm focused on private capital, we find our clients are very active in volatile times and we hope that will continue to fuel our growth.’ Withers originally furloughed 57 staff and 21 have now been brought back on a permanent basis. No salaries have been cut, however, and the decision was taken not to reduce or defer partner pay.The firm declined to comment on why it made use of the government job retention scheme..last_img read more

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Wesley Dean releases uplifting summer track Magik

first_imgWesley Dean has released Magik, the third single from his upcoming new project.Following on from Are You Gonna Save My World and This Thing Called Life, Magik is produced and mixed by Beatriz Artola. Take a listen to the track below:“Magik is a celebration of the human spirit. In this world of unprecedented change, it’s time to believe in our own uniqueness, our own Magik, whatever that is for you,” says Wesley.Magik continues the rollout of new music from Wesley following a hiatus from the industry.Born in Adelaide, Wesley Dean’s musical journey began at a very young age. After winning the 2008 season of Australian Idol, Wesley established himself as one of the brightest emerging new talents in Australia.After a break from the industry, Wesley met his wife and became a father of two, but still he couldn’t find himself parting with his true calling. “I started writing in my home studio – but this time, with a renewed heart for the craft. Now, five years later, I have 20 new songs recorded and ready to release to the world.”last_img read more

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Six Caribbean countries eligible for US visa programme

first_imgWASHINGTON D.C., United States, CMC – The United States Citizenship and Immigration Services (USCIS) says six Caribbean countries are among 63 countries worldwide that are eligible to participate in two visa programmes this year.The H-2A and H-2B Visa programmes allow US employers to bring foreign nationals to the United States to fill temporary agricultural and non-agricultural jobs, respectively.The USCIS identified the Caribbean countries eligible to participate in the visa programmes as Barbados, Belize, the Dominican Republic, Grenada, Haiti and Jamaica.Generally, USCIS said it only approves H-2A and H-2B petitions for nationals of countries the Secretary of Homeland Security has designated as eligible to participate in the programmes. USCIS also said it may approve H-2A and H-2B petitions for nationals of countries not on the list if it is determined to be in the interest of the United States.Effective January 18, 2014, USCIS said nationals of the identified Caribbean countries are eligible to participate in the H-2A and H-2B Visa programmes.It said the notice does not affect the status of beneficiaries who currently are in the United States in H-2A or H-2B status unless they apply to change or extend their status. The USCIS said each country’s designation is valid for one year from January 18, 2014.Caribbean Media Corporation Share Sharing is caring! NewsRegional Six Caribbean countries eligible for US visa programme by: – January 29, 2014 Sharecenter_img Share 29 Views   one comment Tweetlast_img read more

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Dominica performs above regional average in 2016 CSEC exams

first_img Tweet Share Sharing is caring! Share In a comparison Dominica’s pass percentage surpassed the region’s in every subject area including Mathematics and English A, as well as securing a 100 percent passing average in Music. Sharecenter_img Dominica has performs above the regional average of the CSEC results in the Caribbean with an overall average of 81.7 percent while the regional average sits at 64 percent. 6922 Views   15 comments EducationLocalNewsRegionalSecondary Dominica performs above regional average in 2016 CSEC exams by: – August 19, 2016 These figures were given at a press conference held this morning, to officially release the top performers in the 2016 CSEC exams.last_img read more

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RM3000 fine or jail awaits owners of ‘Sambung Bayar’ vehicles

first_imgThe ‘sambung bayar’ practise is quite a regular thing among Malaysian motorist. Sambung bayar literally translates to “Continue Payment” in English, and this happens when a person is no longer able to pay his car or motorcycle loan, and somebody else steps up to continue payment for the loan while the car or bike remains in the original owners name.This is risky business for the original owner as the person who continues his payment may just up and leave with the owner’s car or motorcycle. This has caused the number of individuals black listed by financial institutions to rise. So the standard practise is for the owner to take a deposit for the car or bike.This has been happening for a while now, and the owner of the vehicle sometimes prefers the ‘sambung bayar’ method as he does not need to find someone to buy over his vehicle, which will take time while the owner continues to service the monthly payments.It is so popular that there are entire Facebook pages dedicated to it, you can click here to view a page on cars available for sambung bayar, or click here for a page on sambung bayar motorcycles.Well, the good days for those who practise sambung bayar are about to come to an end.In an article published by Malaysian daily Berita Harian, it was reported that vehicle owners who give their vehicles away to a third party to service their loans without approval will be fined or jailed.In a reply to a question posed by a member of parliament, the Malaysian Home Ministry has clarified that such practices is against the Hire-Purchase Act of 1967. In a statement issued to the House of Commons (Dewan Rakyat), it was stated that “Action can be taken against owners who pawn their vehicles or ‘sambung bayar’ to third parties without the bank’s knowledge and approval.”The law is explicit – Section 38 of the Hire Purchase Act states that an owner who sells or leases their vehicle while the hire purchase agreement is in force can be sentenced to a RM3,000 fine or three years jail, or both, if found guilty.So if you are currently riding or driving a vehicle that belongs to someone else while you pay the monthly installments or if you have let someone else service your loan for you, it will be a good time to return the vehicle as more stringent enforcement is on the way.Read the original article by Berita Harian. –Ads–last_img read more

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No. 25 UWF volleyball sweeps final day at Colorado Premier

first_img Watch Live Full Schedule Roster Preview Live Stats DENVER – The No. 25-ranked University of West Florida volleyball team (6-2, 0-0 GSC) defeated Regis University 3-0 (25-16, 25-23, 25-23) before sweeping Metro State 3-0 (25-16, 27-25, 25-17) on Saturday afternoon to finish with a record of 3-1 at the Colorado Premier Challenge. “I’m just really proud of our team for playing tough on day two of this really strong tournament,” head coach Melissa Wolter said. “Last night was incredibly disappointing but we needed to get refocused today and take care of two teams that are from here which is really hard especially on day two.” Rachel Neblett (Austin, Texas/Vista Ridge HS) tallied a career-high12 kills in the win over Metro State after tallying nine kills in the win over Regis. “Rachel (Neblett) had a great day today, she was connecting really well with Mo (StCyr) and she put herself in positions to score in critical moments,” Wolter said. “That’s what we want to come to expect from our middles.” No. 25 West Florida 3, Regis 0 West Florida took the opening set over Regis by a score of 25-16 as Neblett led UWF with two blocks and four kills at a perfect 1.000 clip. Junior Corisha Smith (Inwood, W.Va./Musselman HS) also had four kills at a .429 clip with two blocks for the Argos in the opening set. UWF took the second set by a score of 25-23 behind a .300 team attacking percentage as Neblett tallied three kills and a pair of blocks to pace the Argos. West Florida clinched the match with a 25-23 win in the third set as senior Autumn Duyn (Venice, Fla./Venice HS) added five kills and four digs to help the Argos earn their fifth win of the season. Neblett ended the match with nine kills at a .583 clip and also added five blocks in the win. Duyn led the Argonauts with 12 kills and also led UWF with 16 digs while Smith ended up with nine kills at a .368 clip. Sophomore Monique StCyr (Williamsburg, Va./Jamestown HS) had a team-high 35 assists in the win. No. 25 West Florida 3, Metro State 0UWF’s offense was on point in the opening set as Neblett again showed her offensive prowess with six kills at a .625 clip. The sophomore also added a service ace and a block as the Argos took the first set by a score of 25-16 behind a .344 team attacking percentage. UWF had 16 kills at a .262 team attacking percentage in the second set behind a spread out offensive attack. Duyn and Smith each tallied four kills in the second set while Neblett and junior Cora Bidlack (Randolph, N.J./Randolph HS) each had three kills. The offense again was spread out in the third set as four Argonauts tallied three kills behind a .250 team attacking percentage to take the set by a score of 25-17. StCyr had 39 assists in the win while junior Tori Martella (Jacksonville, Fla./Providence HS) had a team-high 16 digs. West Florida will open up Gulf South Conference play at home next weekend against West Alabama on Friday, September 18 at 7 p.m. CT and against West Georgia on Saturday, September 19 at 1 p.m. CT. For information on all UWF athletics, visit www.GoArgos.com. #ARGOS# Print Friendly Version West Alabama 9/18/2015 – 7 p.m. CT Next Game:last_img read more

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