Quiet please, noise testing

first_imgAERODYNAMIC testing of noise generated by shinkansen trains can now be undertaken in Japan Railway Technical Research Institute’s new wind tunnel at Maihara-cho. Work has already been carried out on JR West’s Series 500, and testing of components such as pantographs has proved particularly useful.Measuring the noise generated by air flow over a train or component profile is made possible by an extremely low level of noise in the anechoic test chamber, measuring 22m x 20m x 13 m high and lined with sound-absorbent material. Background noise is 75dB(A) at a wind velocity of 300 km/h.Measurement of aero-acoustic noise takes place with the wind tunnel in its open configuration; an 8m portion of the 228m circuit is open to the chamber where a sound level meter, linear array microphone and parabola microphone are deployed. A maximum wind velocity of 400 km/h is generated by a 5m diameter fan with 12 moving and 17 stator blades, which rotates at up to 550rev/min and is powered by a 7MW three-phase motor.With the wind tunnel in enclosed configuration, aerodynamic testing is undertaken at wind speeds of up to 300 km/h. To simulate air flows between moving vehicles and the ground, models are suspended over a belt measuring 6m x 2·7m which moves at up to 60m/s. Flow visualisation is achieved by means of a smoke generator, specialised lighting and video monitoring.Railway Technical Research Institute, Japan, Reader Enquiry Form Number 141CAPTION: The anechoic test chamber at Maihara-cho, with the wind tunnel in the open position for aero-acoustic noise testing. Models are placed on a raised platform in front of the smaller hood (right) Photo: RTRIlast_img read more

Woods needs to win from behind

first_imgTiger Woods started the year out by claiming on his websitethat winning the Grand Slam this year was “easily within reason.”He then went out and made people believe he could win fourmajors in one calendar year by winning his first four tournaments worldwide onhis way to tying Ben Hogan for third place on the all-time career wins listwith 64 career wins.However, Woods didn’t allow the Grand Slam talk to grow whenhe finished three shots behind winner Trevor Immelman. Even though he was sixshots back entering the final round, Woods still had a chance to win — andshould have won — the tournament.Tiger Woods is without a doubt the greatest golfer of ourgeneration. He is also one of the greatest athletes of our generation, but ifhe wants to claim himself the greatest golfer of all time, he needs to dosomething he has never done before: win at least one major coming from behind.He had the perfect opportunity to do that Sunday and failed.Yes, he was six shots back, but the four players ahead of him (Immelman, BrandtSnedeker, Steve Flesch and Paul Casey) had a combined six wins between them andzero wins in a major. Immelman even admitted Saturday night that if Tigerstarted out with a couple of birdies it would have put even more pressure onhim.Despite being six shots back, you had a feeling that ifWoods applied a little pressure out of the gate, the field would come back tohim, and he would have won his fifth green jacket. But instead of applying thepressure, Woods came out and played one over for the first five holes. And hisputting — a strength during the five-tournament winning streak earlier in theyear — was un-Tiger-like all weekend long. Normally anything inside 10 feet isalmost a sure make for Woods, but on Sunday he missed five putts around thatlength, including two that were inside 4-feet.What makes this weekend so disappointing for Woods is thatthe field did come back to him as he earned his second-straight runner-upfinish at the Masters by shooting an even par 72. But had Woods made a few ofthe putts he normally makes we more than likely would be talking about hisGrand Slam chances.All his life, Woods has set his sights at Jack Nicklaus’record of 18 majors. With 13 already, he is well on his way to breaking thatrecord, but unless he is able to win at least one major coming from behind onSunday, he can’t be considered the best golfer in history. He would be, as SkipBayless calls him, “the greatest frontrunner in the history of thesport.”Nicklaus won seven of his majors coming from behind on thefinal day, including his improbable win at the 1986 Masters in which he shot aback nine 30 to win by a stroke. The Golden Bear was four shots back enteringthe final round and had much more experienced competition ahead of him. GregNorman (2 career majors) was the leader with Seve Ballesteros (5), Tom Watson(8), Tom Kite (1) and Nick Price (3) all ahead of Nicklaus.In his prime, Nicklaus also battled with Arnold Palmer (8),Gary Player (9) and Lee Trevino (6). Tiger’s competition hasn’t been thatstrong as Phil Mickelson, Ernie Els and Vijay Singh have the most major winsamong Woods’ competition with three apiece.If Woods gets a lead after three rounds in a major, it is aslam dunk that he will win, but it is almost getting to the point that if hedoesn’t have lead, it is a sure thing he won’t win.Until he proves otherwise, he can’t lay claim to being thegreatest golfer in history.?Greg is a senior majoring in communication arts. Let himknow what you think of Woods’ performance this weekend at [email protected]last_img read more

Spears SRL Southwest Tour returns to Redwood Acres

first_imgEUREKA >> For the third time in the Spears SRL Southwest Tour Series’ history, the super late model touring division will visit Eureka’s Redwood Acres Raceway. The SRL tour cars first visited the Acres in 2013 and returned to the 3/8-mile paved oval in 2014.Many of the top super late model drivers on the west coast are set to participate in the 125-lap main event presented by Renner Petroleum and Bear River Hotel and Casino. Perhaps the biggest name is SRL series point leader, Derek Thorn. …last_img read more

Photos: Golden State Warriors unveil jerseys for 2019-20 season

first_imgCLICK HERE if you are having a problem viewing the photos on a mobile deviceAssociation Edition: A staple in the Warriors uniform arsenal, the white jersey with the team’s Global Logo is a simple, globally recognized jersey that was first introduced prior to the 2010-11 season. The 2019-20 version of this jersey features the team’s refreshed Global Logo, highlighted by an updated, more accurate portrayal of the eastern span of the Bay Bridge.Icon Edition: A blue alternative to the Association …last_img read more

Barrettes Clips Hair Clips Diamante Hair Slide Vintage Rose : Didnt work for me but was very pretty.

first_imgBeautiful and really special, well worth the money. It ok not worth what i apid for it an rather samll. Perfect exactly what i wanted. Beautiful looks really expensive. Didnt work for me but was very pretty.lovely hair clipBarrettes Clips Hair Clips Diamante Hair Slide Vintage Silver RoseVintage Style BarretteClassic Design Good quality & delivered on time. Didnt work for me but was very pretty. . This was a lovely hair clip, unfortunatly it broke as my hair dresser was putting it in lol. But it was very pretty and would have been perfect. I think maybe hairdresser was too heavy handed or perhaps i had a faulty one?.Either way the company refunded. Nice clip for the money, good fast delivery. Great slide useful for regular wear. A little bit smaller than expected but still a lovely item. Fantastic hair clip, my daughter loved it. When i go out somewhere special i like to have my hair back and i don’t see many really lovely hair slides like this. I was a little worried about it at first, because i wasn’t sure about the quality. However, to say i was delighted with it is an understatement. The quality was better than i could ever have imagined and so, so beautiful. There is absolutely nothing about it i don’t like. I am really, really pleased and would recommend it to anyone who wanted something special to make their hair look nice for a special occasion. Really good, i use it almost every day. Lovely hair slide it hold my hair really well as i have very thick hair, looks expensive brilliant for the money. So pleased with this slide looks a lot more expensive than it is, highly recommend.last_img read more

D-League: Pasaol still feeling his way with new team

first_imgAsian shares slide on weak Japan data; US markets closed Do not bring these items in SEA Games venues “The skills of the players here are already at a higher level,” said Pasaol, who has teamed up with former UAAP rivals Abu Tratter and Vince Tolentino here in Marinerong Pilipino. “I’m not rushing, though, as I know I’ll slowly accept my game in the D-League.”He believes, however, that he’ll eventually find his way in Banal’s rotation sooner or later, just in time for the Skippers’ tougher foes ahead.“Hopefully, I find my groove so that everyone can see the Alvin Pasaol they’ve come to know. I trust coach Koy with our campaign here and I hope I can contribute more in the future,” he said.ADVERTISEMENT Austria says ‘racial slur’ provoked Ross; Guiao denies using N-word 8th Top Leaders Forum assessed the progress of public-private efforts in building climate and disaster resilient communities MOST READ Brace for potentially devastating typhoon approaching PH – NDRRMC LATEST STORIES Typhoon Kammuri accelerates, gains strength en route to PH BI on alert for illegally deployed OFWs to Iraqcenter_img Read Next “He was just with us since January 2 and he’s pretty much still learning our system. It’s a good thing that Alvin was able to deliver for us during those crucial stretches,” said Marinero coach Koy Banal.Pasaol finishedHis contributions may have been scarce in his first game in the developmental league, but Marinerong Pilipino did enough to eke out a 94-92 win over Zark’s Burger-Lyceum on Thursday.FEATURED STORIESSPORTSWATCH: Drones light up sky in final leg of SEA Games torch runSPORTSLillard, Anthony lead Blazers over ThunderSPORTSMalditas save PH from shutoutPasaol, though, has no qualms with the way he was used, admitting that he’s still finding his niche in the Skippers rotation.“I’m still feeling my way. I just came to the team when the year turned and I still haven’t fully learned their system. But I’m excited to play here in the D-League and for coach Koy,” said Pasaol in Filipino. Trending Articles PLAY LIST 00:50Trending Articles00:50Trending Articles01:31Go: Search for ‘perfect, honest man’ to lead PNP still on01:29Police teams find crossbows, bows in HK university01:35Panelo suggests discounted SEA Games tickets for students02:49Robredo: True leaders perform well despite having ‘uninspiring’ boss02:42PH underwater hockey team aims to make waves in SEA Games01:44Philippines marks anniversary of massacre with calls for justice01:19Fire erupts in Barangay Tatalon in Quezon City Kammuri turning to super typhoon less likely but possible — Pagasa PBA IMAGESAlvin Pasaol had to wait a little longer before he got to make his debut for Marinerong Pilipino in the PBA D-League.He was fielded in at the 6:16 mark of the third period, but made most of his limited time on the floor with four points, two rebounds, a steal, and a block in his almost six minutes of action.ADVERTISEMENT Don’t miss out on the latest news and information. John Lloyd Cruz a dashing guest at Vhong Navarro’s wedding View commentslast_img read more