Ole Gunnar Solskjaer believes Manchester United can break into the top four earlier than he anticipated considering their current run of form.United were 11 points adrift the top four when Solskjaer replaced Jose Mourinho in December, but having recorded six wins and a draw, the Red Devils find themselves within touching distance of the Champions League places.Despite the tough test ahead with games against Chelsea, Liverpool and Paris Saint-Germain packed into a 12-day period, the former United striker is optimistic his players would live to the billing.“I feel it’s very [well] equipped,” Solskjaer said via Sky of the squad’s strength heading into February.“We’ve had now six weeks together. We’ve found out what strengths, weaknesses we’ve got.Vidic: “Ronaldo is the most professional footballer I’ve seen” Andrew Smyth – September 14, 2019 Nemanja Vidic opened up on how a 21-year-old Cristiano Ronaldo’s professionalism left him stunned at Manchester United.“I think we’ve risen to most of the challenges, maybe, of course, the setback of the two Burnley goals we conceded, maybe they will make us move to the next level because I think we’ve given ourselves a chance now to get into the top four maybe earlier than we thought.“It’s not too many games, there’s still a week between every single one of them but it’s tough opposition. Definitely.“You start with this game against Leicester, Fulham away as well is also a tough one.“Then you’ve got the three big ones you can call it, with PSG, Chelsea, and Liverpool after each other. Then a very hard one, when you think you’ve done with those three, with Palace away. So it’s a tough month – but we’re ready.“I’ve got a big squad, it’s only Marcos Rojo now who’s out for a period, the rest are fit and available.”
Explore further “We can get an interferometer that is more in line with classical visual optics,” Snigirev says. An interferometer works when beams of light are sent through slits or lenses, and patterns are detected against a background on the other side. The patterns reveal information about the object of study. “Our technique is sensitive enough for diagnostics and accurate measurements, and is more stable and easier to set up than using crystals.” Information on the work done by Snigirev and his colleagues is found in Physical Review Letters: “X-Ray Nanointerferometer Based on Si Refractive Bilenses.”Using electron beam lithography, the lenses used by Snigirev and his peers were created by a process of deep reactive-ion etching into silicon. “We prepared concave lenses, and put them in a row. This inline approach increases the refraction power,” Snigirev explains. “Varying the number of individual lenses it is possible to focus x-rays at different distances from meter to milimeter focus distance and use this technique for nano-focusing.”Rather than relying on double slit-type interferomter, which is difficult to accomplish and because of low resolution and loss of intensity, this team relied more on an interferometer related to the Billet split lens. In this classical optics technique, a lens is cut along the optic axis. This still allows for interference to be measured, but the intensity remains high, and the resolution is better.Snigirev points out that one of the advantages of this system is that it is tunable. . “You can tune this ‘nanoruler’ system easily by changing x-ray energy or by moving objects along the optical axis.” Another advantage of the system is in the silicon construction of the lenses. “Silicon is very stable,” Snigirev explains. “It can also take a high heat load, as from a beam. In this case we are using x-rays, but it could be used for future X-ray Free-Electron laser projects.”Indeed, the possible future applications of this interferometer set up have promise. “This could be very attractive for materials research,” Snigirev insists. “It would allow us a better look at photonic and colloidal crystals, multilayer structures, as well as other natural and synthetic mesoscopic materials”.“Interferometry is used a great deal right now, and it could be improved for research into materials and also for other purposes. It is a very important technique,” Snigirev continues. “However, as it is done now it can be difficult to implement. Our approach is simpler, and it could really help in the development of future applications and materials development.”More Information: A. Snigirev, et. al., “X-Ray Nanointerferometer Based on Si Refractive Bilenses,” Physical Review Letters (2009). Available online: http://link.aps.org/doi/10.1103/PhysRevLett.103.064801. Copyright 2009 PhysOrg.com. All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of PhysOrg.com. 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. Fabricating 3D Photonic Crystals Citation: New interferometer could simplify materials research (2009, August 13) retrieved 18 August 2019 from https://phys.org/news/2009-08-interferometer-materials.html (PhysOrg.com) — “Most current hard x-ray interferometers are based on crystals, which require their high quality and high mechanical stability,” Anatoly Snigirev tells PhysOrg.com. “This can make x-ray interferometry quite limited. What we have done is develop a different set up that is simpler.” Snigirev is a scientist at ESRF in Grenoble France. Along with scientists at the Russian Kurchatov Research Center in Moscow, and at IMT RAS in Chernogolovka, Russia, Snigirev proposes that refractive bilenses made from silicon can be used in place of crystals.
Kolkata: Amidst complaints of extortion from students for admission to colleges, Kolkata Police Commissioner Rajeev Kumar today visited a college in central Kolkata and spoke to the students and guardians. Kumar went to the Surendranath College in Sealdah area and interacted with students and guardians to know if they are facing any problem regarding getting admission in colleges. Police stations both in the city and districts have been asked to keep a tab on the colleges in their respective areas and take action if there are complaints of extortion, a police official said. Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killed Both the police and the state education department have been receiving complaints of irregularities as several students and guardians have alleged that money was demanded from them in lieu of admission in colleges. Education Minister Partha Chatterjee yesterday said some outsiders are involved in the extortion and the government will identify them and take action. West Bengal Chief Minister Banerjee, who paid a sudden visit to her alma mater Ashutosh College in south Kolkata on Monday, said the merit list will be the only criteria for admission to colleges. Also Read – Naihati: 10 councillors return to TMC from BJP Several persons have been arrested in connection with the alleged extortion. Chatterjee, who also had visited two colleges, asked the students to pay the admission fees to the colleges through banks if their names featured in the merit list. The Kolkata Police on Saturday posted a message on its Facebook page, urging students to inform the police if someone demands money for admission to colleges. The post said the identity of the complainant would be protected.