Tag: 蚌埠桑拿

  • Koreas to field first-ever joint teams for Paralympic event

    first_imgJapeth Aguilar embraces role, gets rewarded with Finals MVP plum Phivolcs: Slim probability of Taal Volcano caldera eruption Sports Related Videospowered by AdSparcRead Next Carpio hits red carpet treatment for China Coast Guard PLAY LIST 02:14Carpio hits red carpet treatment for China Coast Guard02:56NCRPO pledges to donate P3.5 million to victims of Taal eruption00:56Heavy rain brings some relief in Australia02:37Calm moments allow Taal folks some respite03:23Negosyo sa Tagaytay City, bagsak sa pag-aalboroto ng Bulkang Taal01:13Christian Standhardinger wins PBA Best Player award Unified Korea’s flagbearer Lim Yunghui leads the delegation during the opening ceremony of the 2018 Asian Games at the Gelora Bung Karno main stadium in Jakarta on August 18, 2018. / AFP PHOTO / ADEK BERRYNorth and South Korea have agreed to march under a neutral Korean peninsula flag and form unified teams for some sports at the upcoming Asian Para Games.“This is the first time the two countries have paraded together and competed together at a para-sport event,” Majid Rashed, chairman of the Asian Paralympic Committee, said in a statement posted Sunday.ADVERTISEMENT Allen Durham still determined to help Meralco win 1st PBA title Gretchen Barretto’s daughter Dominique graduates magna cum laude from California college About 100 athletes from South Korea and 20 from North Korea will compete at the multi-sport event in the Indonesian capital Jakarta between October 6-13.Flag-bearers from each country will carry a Korean unification flag and competitors will wear the same uniforms at the opening and closing ceremonies, the statement said.The two countries, still technically at war, will field two joint table tennis teams and a mixed team in a men’s 4×100 metre swimming relay event.FEATURED STORIESSPORTSGinebra beats Meralco again to capture PBA Governors’ Cup titleSPORTSJapeth Aguilar wins 1st PBA Finals MVP award for GinebraSPORTSGolden State Warriors sign Lee to multiyear contract, bring back ChrissNorth and South Korea formed unified teams for some events at the Asian Games in Jakarta and in Palembang from August 18-September 2, securing one gold, one silver and two bronze medals.Earlier this month the two countries announced a joint bid for the 2032 Olympics, in a deepening sign of rapprochement on the peninsula. MOST READ Some 3,000 athletes from 43 countries are expected to take part in 15 Paralympic and three non-Paralympic sports during next month’s event. Lights inside SMX hall flicker as Duterte rants vs Ayala, Pangilinan anew Tim Cone, Ginebra set their sights on elusive All-Filipino crown Gov’t to employ 6,000 displaced by Taal View comments LATEST STORIES Baltazar, Melecio lead La Salle past winless UE Nadine Lustre’s phone stolen in Brazil Don’t miss out on the latest news and information. Lights inside SMX hall flicker as Duterte rants vs Ayala, Pangilinan anewlast_img read more

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  • Pen draws flexible circuits using halfmeter long carbon nanotube fibers

    first_imgResearchers use a pen to draw half-meter-long carbon-nanotube-based fibers. The technique could be used to fabricate flexible electronic circuits. Credit: Huang, et al. ©2015 American Chemical Society © 2015 Phys.org This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Researchers report progress in development of carbon nanotube-based continuous fibers Diagram of the writing process and images of the ink, pen, and fibers. Credit: Huang, et al. ©2015 American Chemical Society Patterns drawn by hand showing the precision with which the fibers can be controlled. Credit: Huang, et al. ©2015 American Chemical Society In the future, the researchers hope to expand the drawing technique to use different types of ink for different purposes.”We are now working on enabling more functions in the fiber,” Wu said. “For example, one possibility is semiconducting fibers drawn from a pen tip for flexible device applications.” (Phys.org)—While it may look like researchers from Tsinghua University in Beijing are sketching out an idea for a circuit on a piece of paper, they’re actually using a special pen that draws real circuits using carbon-nanotube-based ink.center_img When writing, the pen is lifted off the paper to stretch and suspend the fibers, which can then be laid down on the substrate in the desired position. The researchers demonstrated that complex fiber patterns can be drawn by hand, and they predict that even greater precision can be achieved using advanced mechanical devices.The researchers also showed that increasing the polymer concentration of the ink increases the diameter of the nanotube fibers from 300 nm to 3 µm. In general, thinner fibers have better conductivity than thicker ones due to their better fiber orientation. Tests show that the highly conductive carbon nanotube fibers also exhibit excellent mechanical flexibility. At first, the researchers expected that the ultralong carbon nanotube fibers should maintain their conductivity after bending and distortion. Somewhat surprisingly, their tests showed that the fibers actually exhibit an increase in conductivity after bending—about a 30% increase after 1000 bending cycles. The researchers propose that the stress caused by bending deforms the polymers and improves nanotube alignment, which in turn increases conductivity. Journal information: Nano Letters More information: Sihan Huang, et al. “Direct Writing of Half-Meter Long CNT Based Fiber for Flexible Electronics.” Nano Letters. DOI: 10.1021/nl504150a Citation: Pen draws flexible circuits using half-meter long carbon nanotube fibers (2015, February 20) retrieved 18 August 2019 from https://phys.org/news/2015-02-pen-flexible-circuits-half-meter-carbon.html This technique, called “fiber drawing,” has previously been used to construct patterns, but the fiber length is usually very short at just a few millimeters, and the drawing speed is typically very slow. These drawbacks limit its use in circuit fabrication.In the new study, the researchers demonstrated that their new pen can draw carbon nanotube fibers that are more than a half of a meter long with fast drawing speeds of up to 10 cm/second. Their work is published in a recent issue of Nano Letters.Due to the nanotube fibers’ high conductivity and excellent mechanical flexibility, the researchers predict that the fibers could serve as the fundamental building blocks for a wide variety of flexible electronic devices, such as wearable electronics, flexible touch displays, flexible solar cells, RFIDs, and 3D devices.While the pen itself is an ordinary commercial pen, the ink consists of a combination of electrically conductive carbon nanotube fibers and a viscous polymer solution called polyethylene oxide (PEO). The viscous PEO is highly elastic and mechanically strong, which allows it to pull long nanotube fibers from the solution during the writing process. “The drawing technique allow us to achieve very long carbon nanotube fibers mainly due to the high molecular weight of the polymer and high viscosity of the precursor solution as ink,” coauthor Hui Wu, Associate Professor at Tsinghua University, told Phys.org. Explore furtherlast_img read more

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