爱上海GH

first_imgMorten Eskildsen, professor of experimental condensed matter physics, was named an American Physical Society (APS) Fellow in the Condensed Matter Physics division in December. The Society recognized his research regarding type-II superconductors.Eskildsen, who has been a member of the Notre Dame faculty since 2003, was one of 32 condensed matter physicists selected from a nomination pool of 6,000. The APS elects Fellows for their “exceptional contributions to the physics enterprise,” according to its website.Eskildsen’s recent research on superconductors has provided insight on this aspect of physics. Superconductors are substances considered an “emergent phase,” he said.“The fundamental constituents that make up a superconducting material, atoms and electrons, are well-known with well-understood properties,” Eskildsen said. “Nonetheless, when a large number are combined into a material, the interactions can lead to new physical phenomena.”Since superconductors can carry electric currents without any loss, they have enormous potential for technological use, Eskildsen said. In addition to furthering the fundamental understanding of particle interaction, research on superconductors could improve the functionality of these materials, he said.“Currently, the practical use of superconductors is mainly in very strong electromagnets,” said Eskildsen. “Since there is no loss, these magnets can be charged and basically ‘store’ a magnetic field indefinitely. This is used for NMR magnets, MRI scanners and also in the magnets in the Large Hadron Collider at CERN.”Eskildsen’s primary research focus is the vortex lattices that exist within superconductors in magnetic fields.“They are like little (nano-scale) electric tornadoes,” Eskildsen said.Eskildsen said the electric vortices behave differently within different superconductors, and observing these variations allowed him and his team to understand more about certain mysterious superconductors that are of “special fundamental importance,” he said. Eskildsen’s research also has implications regarding the practical use of superconductors, he said.“Current in the superconductor will compel the vortices to move and if they do so that will lead to losses; even in the superconducting state,” Eskildsen said. “So the study of vortex dynamics and vortex pinning is of considerable practical importance.”For example, Eskildsen said development of more effective superconductors could solve the problem of “power transmission lines where a lot of the electricity generated at power plants is lost.”“So far all superconductors have to be cooled to cryogenic temperatures,” Eskildsen said. “If one could discover a superconductor that would work at room temperature, one could potentially solve these problems.”Tags: American Physical Society, APH, electromagnets, Morten Eskildsen, superconductors condensed matter physicslast_img read more

first_imgFollowing a 67–34 tune-up win Wednesday against UW-Whitewater, the University of Wisconsin women’s basketball team takes on North Florida Tuesday night at the Kohl Center. The Badgers are looking to build off a 2018-2019 season in which the team finished with a 15-18 record, an improvement from previous years under Head Coach Jonathan Tsipis.For Wisconsin, it will be a challenge this season replacing senior leader Marsha Howard. Howard, a member of the All-Big Ten second team last year, provided Wisconsin with consistent scoring, averaging 14.7 points per game. One player that will look to shoulder the load is sophomore star, Imani Lewis. As a freshman last year, Lewis shined and finished the season second on the team in scoring, averaging 12.2 points per game. Lewis started on the right foot again last week against Whitewater, tallying 15 points.Women’s basketball: Wisconsin’s heroic tournament run ends in 2OT loss to MichiganThe University of Wisconsin women’s basketball team (15-18, 4-14 Big Ten) battled the fourth-seeded Michigan Wolverines (21-10, 11-7) and suffered Read…Like Wisconsin, North Florida also looks to build off of an average 2018-2019 season. After a slow start, North Florida finished strong, winning four out of their last five regular-season games.The Ospreys then continued to ride their hot momentum into the Atlantic Sun Tournament, defeating North Alabama but losing to Liberty in the Atlantic Sun semifinals. The Ospreys are awaiting the return of junior guard, Tiffany Tolbert, who appeared in three games last season before a detrimental season-ending injury. In those games, Tolbert averaged 18.3 points per game, including a 21-point performance against Indiana. The return of Tolbert will give North Florida an added boost this season.Taylor looks to do damage alongside front-court partner junior transfer Jazz Bond. Bond, the forward out of Murfreesboro, TN, was a double-double machine, averaging 15.9 points per game and 7.5 rebounds per game. Look for Tolbert and Bond to execute the pick and roll against the Badgers.Women’s basketball: Badgers explode in second half to slay fifth-ranked Ohio StateJust a week ago, the Ohio State Buckeyes (14-14, 10-8 Big Ten) marched into the Kohl Center and handed the Read…With games against Power Five opponents looming, including matchups against Colorado, Arkansas and Georgia Tech, it is critical that Wisconsin gets on the right track Tuesday night. The Badgers showed a lot of potential in their 67–34 win against UW-Whitewater, and hopefully they can continue to ride the momentum tomorrow night.The Wisconsin-North Florida game will tip at 7 p.m. Tuesday night at the Kohl Center.last_img read more

first_imgHis ten-length victory that year remains a race record. Before his retirement as a jocket in 2000, Swinburn had also rode winners in the Irish Derby, the Prix de l’Arc de Triomphe and the Breeders Cup. The world of racing has been paying tribute to one of the greatest ever flat jockeys. Three-time Epsom Derby winner Walter Swinburn has died at the age of 55. Swinburn first won the Derby as a 19-year old aboard the great Shergar in 1981. last_img

first_imgAmaila Falls hydro projectFormer Government Minister and current Opposition Member of Parliament (MP), Irfaan Ali, has lashed out at Government for its inconsistent policies, and has highlighted recent comments made by one senior Government Minister in relation to the Amaila Falls Hydro Power (AFHP) project.He said Natural Resources Minister Raphael Trotman’s recent affirmation that the project is actually a renewable energy option for Government is one prime example. Trotman’s statement is contrary to that made by Minister of State, Joseph Harmon, who had said Government has shelved the idea.“This Government has demonstrated that it has no clear vision, understanding, or clarity on where it is going, and its developmental priorities for Guyana… I think pride and arrogance (have) cost the Guyanese people tremendously, as a result of the actions of this Government,” he stated.Ali told Guyana Times on Sunday it is also clear that the only accomplishments that Government could point to are initiatives or undertakings that commenced under the Peoples Progressive Party (PPP) Government; another case in point being the Specialty Hospital which was also shot down by the coalition.According to him, had the Government, while in Opposition, supported the AFHP project, it would have already been on stream, and Guyanese from all walks of life would have been direct beneficiaries today.“By today, the people in this country, our brothers and sisters, would have been benefiting from the most improved and cheaper energy costs. As a result of pride and the heavy-handedness of this Government, when they were in Opposition, the people were denied this opportunity,” he asserted.The Opposition MP said also that the Government was given the opportunity, while in Opposition, to support the independent stakeholders who had come to assess the feasibility of the project. However, it did not seize those opportunities, but is now claiming that monies will have to be expended on carrying out another assessment.“Why is it (that) we have to expend more resources and more study on a project that is already deemed good and supported by every single independent group that came to assess the feasibility and viability of this project? By today, we should not be worrying about whether we should continue with the hydro,” he said.Ali said Government should have moved ahead with the idea, but again reminded that Government was reluctant to do so because of pride, mainly because it was a brainchild of former President Bharrat Jagdeo.He maintained that the AFHP project is the most important aspect of Guyana’s transformational development goal, mainly because the greatest hindrance for all Guyanese is the cost of energy.“Even the Inter-American Development Bank spoke about the inhibiting factor for Guyanese development is the cost of energy. Today, not only would we have had 100 percent renewable energy, but we would have had an electricity rate that would have come down by almost 50 percent,” he noted.In addition to that, local rates would have been far more competitive, so much so that it would have created expansion in the manufacturing sector, which would have ultimately lent to new opportunities for growth and development, and job creation throughout the country.The MP said the same could be said for many other projects. These include the Marriott Hotel, the Cheddi Jagan International Airport Expansion, and the Specialty Hospital.“Skepticism and a lot of mischief was created around these transformational projects that were critical in recreating a new developmental and economic growth landscape for our country,” he opined.Reference was also made to the Guyana Power and Light (GPL) Inc seeking US$110 million to assist with an overhaul of its system. Ali reminded that this sum is not catering for any expansion, but just to maintain the current supply network or bring some improvements to it. His contention is that that investment could have been put towards the AFHP project instead.The Opposition PPPC has long called for reintroduction of the Amaila Falls Hydro Project for a number of important reasons. Opposition Leader Bharrat Jagdeo said not only does the scrapping of the project threaten the forest pact agreement with the Kingdom of Norway, which could cause the country to lose out on another US$3 billion in savings, but it could assist Guyana to combat climate change.The project, which formed part of Guyana’s Low Carbon Development Strategy (LCDS), was the brainchild of Jagdeo, and was commissioned in 2009. And having taken up office in 2015, the current Government has repeatedly stated its disapproval of resurrecting the project. (Samuel Sukhnandan)last_img read more