Kolkata: Shovan Mandal from Birbhum Zilla School, who has jointly ranked first along with Rajarshi Barman of Jenkins School in Cooch Behar, has expressed his desire to become a cardiologist to serve poor people in the villages. Rajarshi on the other hand wants to study Physics. Both of them have scored 498 marks out of 500.Shovan, who had stood eighth in the Madhyamik Examination in 2017, was a little surprised when his name was announced. “It was surprising for me as I didn’t expect that I could rank first. It is, however, a great feeling for me. Human physiology is my favourite subject and I want to become a doctor. I have appeared for the National Eligibility cum Entrance Test (NEET) this year. I have seen that a large number of patients in the villages suffer from heart related ailments. All the patients cannot bear the cost of treatment. I want to treat the patients in the villages at a lesser cost.” Also Read – City bids adieu to Goddess DurgaShovan also spoke on one of the keys to his success, saying: “I always used to read the text books thoroughly. I also used to practice question-answer series that has paid dividends in the examination. I like to watch cricket and read story books in my leisure time.” Rajarshi, who appeared for the exam from Jenkins School, wants to pursue studies in Physics. He also stressed on the reading of text books minutely to succeed in the exam. His father Bishnupada Barman is a teacher by profession. “I thought that I would get around 475 marks. The number has jumped to 498 in the final examination. I used to read whenever I had time on hands. I always followed text books. I was taken aback when I saw my name flashing on the TV screen,” he said. Also Read – Centuries-old Durga Pujas continue to be hit among revellersSanjukta Bose of Bidhannagar Govt High School, who is among the six students securing second position, used to study 17-18 hours per day before the exam. She aspires to be a teacher. One of her relatives said that she wants to study Economics. A resident of Baguiati, Sanjukta has succeeded in the examination despite financial constraints affecting her family. She has received 98 in Economics, 100 in English and 93 in Bengali. All the second rankers have obtained 496 marks. The other students who have jointly ranked second are Tanmay Maikap of Bajkul Balai Chandra Vidyapith of East Midnapore, Swarnadip Saha of Dinhata High School in Cooch Behar, Hritam Nath of Krishnagar Collegiate School, Md Mausam Akhtar of Sundarban Adarsha Vidyamandir and Anatap Mitra of Jenkins School. Tanmay Maikap said that he wants to be a doctor. Mathematics has been his favourite subject. He has scored 100 marks in Mathematics and Chemistry, whereas in English and Physics he has got 99 and 98 respectively. Shreyashi Sarkar of Taki House (Govt Sponsored) Multipurpose Girls High School has jointly ranked fourth and she aspires to be an engineer. She has obtained 492 marks, while Rakesh Dey from Sainthia Town High School, another co-ranker said he wants to study History and become a professor. Satyam Kar from Jadavpur Vidyapith, who has ranked fifth along with 13 others securing 491 marks, said that an extensive reading of text books was his key to success. He wants to be a doctor as well. He had ranked sixth in the Madhyamik Examination in 2017. “I used to study whenever I felt like it. Bio-science is one of my favourite subjects. HS examinees should read the text books thoroughly to get good marks. I want to serve people in the villages after becoming a doctor,” Satyam said.
Jan Eliasson and Salim Ahmed Salim held talks in the Egyptian town of Sharm el-Sheikh yesterday with the foreign ministers of Chad, Egypt and Libya and senior representatives of the Eritrean President, UN spokesperson Marie Okabe told reporters.They discussed the political and security situation inside Darfur, the progress of efforts to unify the region’s many movements and possible options for the next phase of the peace process.Ms. Okabe said participants agreed that the Sudan People’s Liberation Movement (SPLM), the former rebel group from southern Sudan, deserves commendation for its efforts to facilitate the unification of the Darfur movements ahead of scheduled direct talks between the rebels and the Government.The movements, which have splintered since the conflict began from two or three large groups into as many as 16 separate factions, have also been encouraged to continue with their work to nominate a common negotiating team and process.In addition, Mr. Eliasson and Mr. Salim and the regional partners discussed the surge in fighting in eastern Chad during the past fortnight and its impact on both the Darfur conflict and Chadian-Sudanese relations.Yesterday’s meeting was the latest step in the efforts of the UN and AU to broker a comprehensive peace accord to quell the violence and humanitarian suffering in Darfur, where more than 200,000 people have been killed and at least 2.2 million others displaced since rebels began fighting Government forces and allied militia known as the Janjaweed in 2003.The UN and AU are deploying a hybrid peacekeeping mission (known as UNAMID) to Darfur at the start of next year to take over from the existing but under-resourced AU mission (AMIS), but objections and obstacles raised by the Sudanese Government and a lack of offers for critical force units have left the deployment in jeopardy, senior UN officials warned last week.Today Mr. Eliasson arrived in Khartoum, the Sudanese capital, for a week-long visit around the country in which he is scheduled to meet senior Government officials, members of the SPLM in the southern town of Juba, and representatives of the Darfurian movements and civil society groups. 5 December 2007The United Nations and African Union Special Envoys for Darfur have met with the regional partners to the peace process in the war-torn Sudanese region to assess the progress so far and try to forge agreement on the way forward.
Speaking to reporters at The Hague, the Advisor to the Prosecutor, Jean-Jacques Joris, said the transfer of the former Yugoslav President was required under international law, which should prevail over political statements.The indictment against Mr. Milosevic charges him and four others with crimes against humanity and violations of the laws or customs of war during a “systematic attack directed against the Kosovo Albanian civilian population of Kosovo in the Federal Republic of Yugoslavia.” Meanwhile, Tribunal spokesman Jim Landale told the press briefing that an extraordinary plenary session of the Tribunal judges would be held tomorrow to discuss modifications to the court’s rules of procedure and evidence in light of a recent Security Council decision on the use of temporary or ad litem judges to ease the court’s workload. On 30 November, the Council established a new pool of 27 judges who will serve the International Criminal Tribunal for the former Yugoslavia on an ad litem basis, meaning that they will be appointed to specific trials as and when needed.
The ILO’s International Programme on the Elimination of Child Labour (IPEC) will collaborate with the US Agency for International Development (USAID) on the child labour portions of a survey on labour practices in five West African cocoa-growing countries. Beginning in September, IPEC will provide technical and training expertise for the project, which involves Cameroon, Côte d’Ivoire, Ghana, Guinea, and Nigeria.IPEC’s aim is to work towards the progressive elimination of child labour by strengthening national capacities to address child labour problems, and by creating a worldwide movement to combat it. The Programme targets bonded child labourers, children in hazardous working conditions and occupations and children who are particularly vulnerable, i.e. very young working children (below 12 years of age), and working girls.
Ohio State baseball players mob Noah McGowan following his walk-off double Sunday to give Ohio State the 6-5 win against Indiana. Credit: Mac Connor | Ohio State AthleticsGreg Beals was not worried about Ohio State’s chances of making the NCAA baseball tournament.Ending the season with a No. 37 RPI ranking, navigating through the loser’s bracket to get to a semifinal game against No. 1 Minnesota in the Big Ten tournament, the Buckeyes were in a prime position to earn its first national tournament bid since 2016.However, without any control over whether a tournament bid was in his team’s future, there was a level of anticipation as the names on the bracket were being read.“I felt really good about our chances coming into today, but your destiny is in the hands of a committee. So you are not 100 percent, you don’t feel great,” Beals said. “So, when you see your name up on the board, a pretty good fist pump went out and then I went into immediate competitive mode.”Ohio State will travel to Greenville, North Carolina, as a No. 3 seed to take on No. 2 South Carolina in the regional round of the NCAA Tournament. The Buckeyes will join No. 1 East Carolina and No. 4 University of North Carolina Wilmington in the Greenville regional.Right-handed pitcher Seth Kinker said there was a collective excitement between him and his teammates when Ohio State’s name popped up on the bracket.“There were a lot of different projections and you look at those projections and you don’t really know where you are going to go,” Kinker said. “Then you finally see it and you are like yeah, that is satisfying and now you can take the weight off your shoulders.”After losing in the first round of the Big Ten Tournament to Purdue, the Buckeyes, much like their 2016 conference tournament run, eliminated both Iowa and Michigan in the loser’s bracket before eventually falling to the Golden Gophers in the semifinals.Even though the team came out of Omaha without a conference championship, the mentality stays the same for Ohio State heading into its regional.“After we lost our last game in the Big Ten Tournament, [Beals] said, ‘Look, this season is over now. This is a start of a new season,’” senior infielder Noah McGowan said. “Everyone is starting out 0-0 basically and the goal is to end your season with a win, so that is our mindset going into the regional.”McGowan said the two wins against the Hawkeyes and the Wolverines created a belief in the Ohio State locker room that they can play with anyone in the nation, a confidence that whichever team the Buckeyes face in the NCAA tournament will be one they can keep up with.That is where Beals’ mind went as soon as he saw his team’s name on the screen. Amidst the cheers and celebration by his players and coaches, Ohio State’s head coach delegated game plans to each of his assistant coaches for the potential opponents in the regional.For Beals, he is excited to be in the NCAA tournament. Now, he knows he and his team have a job to do.“We are certainly very, very happy to be in the tournament, but, make no mistake about it, we are going to East Carolina to win a regional,” Beals said. “That’s our mission.”No. 3 Ohio State will open up tournament play at 2 p.m. Friday against No. 2 South Carolina.
Scenes of panic around Westminster Video shot by an MP shows the initial panic that ensued inside the building on Wednesday as word got out of an attack outside.David Davies was in Portcullis House in Westminster when, what appears to be a security warden, shouts for people to get “straight back” repeatedly. Mr Davies asks ‘is he coming?’ before running inside along with several others. A knife-wielding attacker driving a vehicle on Wednesday mowed down pedestrians, killing two on Westminster Bridge before breaching Parliament’s grounds and fatally stabbing a police officer. A 75-year-old victim on the bridge died late on Thursday of his wounds, police said. At least 30 people were injured. Want the best of The Telegraph direct to your email and WhatsApp? Sign up to our free twice-daily Front Page newsletter and new audio briefings.
Voith recently unveiled its new TurboBelt 500 TPXL fluid coupling at MINExpo in Las Vegas, USA. The fill-controlled coupling is the first model in the new TPXL family, which combines the advantages of the proven hydrodynamic drive principle with intelligent control technology. The integrated controller makes it possible to adapt the output torque of the coupling exactly to the startup parameters of the belt conveyor system. In addition, Voith’s engineers have been able to considerably reduce the dimensions of the new coupling, so that the TurboBelt 500 TPXL only requires half the volume of conventional coupling types for the same force transmission. In addition to the operational advantages, the new series of couplings also offers attractive procurement and operating costs.Operation of the TurboBelt 500 TPXL is simple and user-friendly: After the required torque for the belt and the basic startup parameters have been transmitted, the coupling automatically calculates the optimum fill level in real time and fills or drains the working circuit accordingly. Equipped with a self-learning function, it simultaneously stores all relevant operational data in order to align the control behaviour optionally with the nominal value, depending on the respective load situation and on the basis of previous empirical values.This is enabled by the plug-and-play design of the TurboBelt 500 TPXL. An integrated controller, an integrated pump and a new oil supply unit are part of the coupling concept. Thus the components are optimally matched to one another and pave the way for predictive, requirement-oriented and cost optimised maintenance of the coupling. The controller monitors the entire sensor system of the coupling and provides operationally relevant information, such as the condition of the oil filter. Even by remote access, if desired. As a self-contained system, the coupling can be easily put into operation without long interruptions in production. In order to allow for the integration into new as well as existing drive trains, Voith offers a version with bearings on both sides for standalone use as well as a variant with bearings on the output side for direct motor connection.Thanks to the hydrodynamic operating principle, power transmission via the TurboBelt 500 TPXL is wear-free and does not require a mechanical connection. New vanes with the XL profile double the power density of the coupling in comparison to conventional coupling types. This means that only half the volume is required to transmit the same force. The hydrodynamic circuit of the coupling limits the torque in the driveline to a fixed, defined value which protects the belt and the drive components from damage due to overloading. This minimises maintenance costs and increases the lifetime of the system. Motors can be run up to speed under no-load conditions and staggered in time using the fill control system. This minimises the current peaks that always occur when motors are switched on and reduces the load placed on the power grid.In parallel with the integrated controller unit, which controls the oil supply to the working circuit among other things, the TurboBelt 500 TPXL is also equipped with a fieldbus unit. With this, Voithlays the foundation for the mining of the future. Thanks to connected components over the entire extraction process, operators can profit from high conveyance performance and increased productivity as well as from increased work safety. Within the Voith portfolio the TurboBelt TPXL fill-controlled coupling is complemented by components over the entire conveying process such as the intermediate drive TurboBelt TT Linear Booster Drive, storage loops, tension stations and slide and chute systems. “Today, this already offers diverse possibilities for optimising belt conveyor systems with respect to total cost of ownership and capital expenditures. Furthermore the wide product range opens a perspective for the future with regard to automation concepts and comprehensive condition monitoring.”
A gold mine located in Sessa, Switzerland, was operated from 1858 until 1952. During the last years of its activity (1950-52) up to 500 kg of gold were extracted, which translates into revenues of 2 million Swiss Francs. However, despite the high concentration of gold and silver, the total cost of extraction by traditional excavation techniques, did not offer sufficient revenues to guarantee optimal economic management. The mine was therefore closed and until now has remained inaccessible to the public.Valerio Marini, Customer Service & Support – Mobile Mapping, Leica Geosystems has reviewed an innovative current project to survey the mine using new technology. “Recently the local community secured funds to recover the mine to protect and preserve it as an point of history and culture in the region. Surveyors have mapped the mine shaft to explore its more than 2,000 m of galleries on four floors while discovering a new flooded well. The part of the mine that currently concerns the surveyors is 400 m long with a main tunnel of 346 m. The galleries will be recovered, keeping their historical uniqueness and will be accessible to the public. The recovery works are divided into the internal and external areas.”“A group of students of the Master’s degree programme in Geomatics of the Swiss Federal Institute of Technology in Zurich, Switzerland (ETH Zurich) are carrying out an interdisciplinary project were they have surveyed the gold mine in Sessa with different technologies including the Leica Pegasus: Backpack. The students will compare the methods and present a report with the results in January.”The advantages of the Pegasus:Backpack for this project compared to other survey methods:Fast acquisition of the data – 15 minutes for total data capture outside and inside the mineFast processing of the data – 45 min for LiDAR RGB point cloud delivery, plus 90 min with panorama imagesNo shadow zonesLiDAR data with intensity and RGB informationDirect georeferentiation of the capture – the GNSS antenna allows users to process the data directly in absolute or local coordinate systemImages – the pictures are essential in this environment for analysis and extraction of valuable information for logistics and safety reasons (eg status of pipes, cables)All the LiDAR data collected with the Pegasus:Backpack will be used for the creation of the 3D model which will be used to:Map the tunnel for tourist information and to market it as a tourist attractionMap and analyse the mining shaft for safety reasonsCreate a virtual 3D “fly through” navigation experienceGenerate a 3D printed scaled model for museum exposureAll the LiDAR data collected with the Pegasus: Backpack will be used for the creation of the 3D model which will be used to:Map the tunnel for tourist information and to market it as a tourist attractionMap and analyse the mining shaft for safety reasonsCreate a virtual 3D “fly through” navigation experienceGenerate a 3D printed scaled model for museum exposure
← Previous Story Fans opinion: Dujshebaev will stay in Madrid! Next Story → Celebration day in Szeged: Mate Lekai ready for Veszprem! EHF CupsEuropean handball The Draw for 1/4 Finals of European Cups took place in Vienna:EHF CUP Dinamo Minsk (BLR) – Frisch Auf Göppingen (GER)RK Gorenje Velenje (SLO) – Rhein-Neckar Löwen(GER)Tatran Presov (SVK) – SC Magdeburg (GER)Saint Raphael Var Handball (FRA) – Dunkerque HB Grand Littora (FRA)CUP WINNERS CUPHC “Motor-ZNTU-ZAS” (UKR) – SG Flensburg-Handewitt (GER)VfL Gummersbach (GER) – BSV Bern Muri(SUI)HC Meshkov Brest (BLR) – Caja3 BM. Aragon (ESP)HC Celje Pivovarna Lasko (SLO)- S.L. Benfica (POR)CHALLENGE CUPWacker Thun (SUI) – SSV Bozen (ITA)HC Kriens-Luzern (SUI) – A.C. Diomidis Argous (GRE)C.S.U. Suceava (ROU) – Sporting CP (POR)RK Maribor Branik (SLO) – Maccabi “Tyrec” Tel Aviv (ISR)
Paris : une étude sur la biodiversité de la Seine ?La mairie de Paris veut lancer une étude sur la biodiversité de la Seine qui serait “une première” et la traduction concrète du Plan biodiversité voté lors du Conseil de Paris de novembre, selon Fabienne Giboudeaux, adjointe EELV en charge des espaces verts.Anguille commune, silure glane, méduse d’eau douce mais aussi écrevisse rouge américaine, carpe commune ou encore éponge d’eau douce de Müller : la Seine abrite un grand nombre de variétés de poissons. Mais à ce jour, on ignore encore où chaque espèce se trouve, ni combien de spécimens chacune compte. C’est pour pallier à ce manque d’informations que la mairie de Paris a décidé de lancer une étude sur la biodiversité de la Seine, a annoncé cette semaine Fabienne Giboudeaux, adjointe EELV en charge des espaces verts.À lire aussiL’impressionnant repas d’un héron surpris en pleine nature”A ce jour les données relatives à la Seine dans Paris sont partielles et concernent essentiellement certains groupes de la macrofaune (poissons, amphibiens, oiseaux). Il n’existe pas de données globales, ni de données détaillant les différents habitats qui lui sont inféodés, tant aquatiques, que sur les berges et les quais”, s’est justifiée la ville. Si le projet est maintenu, ce serait alors “une première” qui s’avèrerait être la traduction concrète du Plan biodiversité voté lors du Conseil de Paris de novembre, a expliqué l’adjointe des verts. Néanmoins, ce projet s’intègre aussi à l’aménagement des berges de Seine cher à Bertrand Delanoë, qui se traduira par la fermeture totale aux voitures d’une partie des quais rive gauche (sur 2,5 kilomètres), rappelle l’AFP. La mairie présentera lors du Conseil de Paris de décembre une délibération afin de pouvoir mener cette étude estimée à 200.000 euros. Les élus seront amenés à voter une demande de subvention auprès de l’Agence de l’Eau Seine Normandie, à hauteur de 50% du montant HT de l’étude.Le 4 décembre 2011 à 10:16 • Maxime Lambert
Stay on target Mini Satellite View of Hurricane Dorian Shows Intense Storm ActivityWild Horses of NC to Ride Out Hurricane With ‘Butts to the Wind’ In what is hilariously being called the “Great Mattress Migration of 2019,” dozens of mattresses were sent flying across a lawn in Denver, Colorado on Saturday.People set up mattresses in the Denver neighborhood of Stapleton for a “movie night under the stars,” but the anchor-less mattresses were no match for the strong winds that swept through the area.Denver resident Robb Manes captured the “Great Migration” on video and shared it to Reddit and YouTube.In the video, mattresses can be seen flying through a field, narrowly missing some people who were running after them. Some of the mattresses even flew over a gate and into a community pool with people trying to figure out what was happening.“We were hanging out at the pool when, suddenly, a mattress flew into the fenced-in area,” Manes said on YouTube. One mattress even landed in the pool, Manes told the Denver Post.Manes said he and others tried to help a woman running after some of the 50 to 100 mattresses, which were flying for about 30 minutes.“Although we felt really bad for the event people, we thought it was absolutely hilarious,” Manes said.More on Geek.com:Study: Hurricanes Force Spiders to Be More AggressiveNASA Image Captures Dangerous Lake Erie Algae Bloom From SpaceLightning Strike Kills 300-Pound Bear in Colorado
Posted: May 6, 2019 KUSI Newsroom, KUSI Newsroom May 6, 2019 How to overcome job burnout and create a meaningful career Categories: Good Morning San Diego, Local San Diego News FacebookTwitter 00:00 00:00 spaceplay / pause qunload | stop ffullscreenshift + ←→slower / faster ↑↓volume mmute ←→seek . seek to previous 12… 6 seek to 10%, 20% … 60% XColor SettingsAaAaAaAaTextBackgroundOpacity SettingsTextOpaqueSemi-TransparentBackgroundSemi-TransparentOpaqueTransparentFont SettingsSize||TypeSerif MonospaceSerifSans Serif MonospaceSans SerifCasualCursiveSmallCapsResetSave SettingsSAN DIEGO (KUSI) – According to research, 2 in 3 employees are disengaged at work and only 7% of the Global Workforce claims to have a “great job.” but a Career and life transition coach is trying to help people overcome burnout in the workplace.Dan Mason said his mission is to help people discover their calling, and create a career that’s meaningful to their bank account and the world at large.Some of the topics Mason discussed on Good Morning San Diego were:-5 Questions to reinvent your life at any age.-How to Spring Clean Your Mind, reduce stress, and create your best life.-Three reasons your 2019 goals aren’t happening-How to free yourself from the corporate grind.-5 questions to help you discover your life’s calling.To check out Mason’s podcast, Life Amplified visit this link.For a free workbook click here. Updated: 11:32 AM
Easterseals helps veterans who are transitioning out of the military Posted: August 12, 2019 August 12, 2019 00:00 00:00 spaceplay / pause qunload | stop ffullscreenshift + ←→slower / faster ↑↓volume mmute ←→seek . seek to previous 12… 6 seek to 10%, 20% … 60% XColor SettingsAaAaAaAaTextBackgroundOpacity SettingsTextOpaqueSemi-TransparentBackgroundSemi-TransparentOpaqueTransparentFont SettingsSize||TypeSerif MonospaceSerifSans Serif MonospaceSans SerifCasualCursiveSmallCapsResetSave SettingsSAN DIEGO (KUSI) – The Easterseals Bob Hope Veterans Support Program provides employment services, as well as referrals to other resources, to help military personnel and veterans who are transitioning out of the military into a civilian job or starting their own small business.Director of Operations for the program John Funk and recently retired Chief Petty Officer Michelle Warnecke joined us at KUSI to discuss how Easterseals is helping men and women in the armed forces. KUSI Newsroom Categories: Local San Diego News FacebookTwitter KUSI Newsroom,
6 Comments AT&T CBS DirecTV Share your voice CBS and AT&T’s contract dispute affected subscribers of DirecTV Now and other services. Getty Images CBS channels will be restored Thursday for AT&T’s DirecTV, DirecTV Now and other pay-TV customers, after the two companies reached a deal and ended a nearly three-week blackout.CBS and AT&T said Thursday that their multi-year deal will cover the CBS-owned stations of its namesake broadcast channel, the CBS Sports Network and the Smithsonian Channel across DirecTV, DirecTV Now and U-verse, as well as the upcoming TV platforms that AT&T hopes to launch. (Editors’ note: CNET is owned by CBS.)AT&T aims to launch a Netflix-like streaming service called HBO Max in spring 2020, but that isn’t expected to carry live channels. The blackout hit AT&T pay-TV customers in 17 cities — New York, Los Angeles, Chicago, Philadelphia, Dallas, San Francisco, Boston, Atlanta, Tampa, Seattle, Detroit, Minneapolis, Miami, Denver, Sacramento, Pittsburgh and Baltimore — as well as more than 100 CBS stations and affiliates on DirecTV Now. It stemmed from a dispute over the rates that AT&T pays CBS to carry the channels, after the companies’ 2012 agreement expired last month. In a brief joint statement, the companies didn’t disclose financial terms.”CBS and AT&T regret any inconvenience to their customers and viewers and thank them for their patience,” they said. Tags TV and Movies TVs Mobile
This illustration shows the ExoMars rover on Mars. ESA Next year was shaping up to be a big one for Mars rovers. NASA is aiming to launch its Mars 2020 rover and the European Space Agency is also planning to send off its own ExoMars rover. But the ESA’s schedule might be in jeopardy after a series of parachute testing failures. ESA shared the news Monday of an “unsuccessful high-altitude drop test.” The rover, named Rosalind Franklin for the DNA pioneer, is meant to be gently lowered down to Mars with the help of two main parachutes attached to a descent module. Enlarge ImageThis graphic shows the parachute deployment sequence for ExoMars. ESA Those two parachutes each have a smaller pilot chute that helps deploy the bigger chutes, one of which would be the largest ever flown on a Mars mission with a diameter of 115 feet (35 meters). That parachute passed a low-altitude drop test in 2018, but a high-altitude drop test for all four parachutes in May didn’t work out as planned.The deployment mechanisms worked properly for the May test, but the main parachute canopies were damaged in the process, ESA said. The space agency tweaked the parachute design and tried again last week, but once again the parachute canopy suffered damage. The test module descended from a high-altitude helium balloon down to Earth with just the drag of a small pilot chute to slow it down.ExoMars team leader Francois Soto described the test failure as “disappointing.” Mars parachute experts from ESA and NASA will help troubleshoot the issue. Dying space missions remembered in inspiring final images ESA Mars rover named after Rosalind Franklin, brilliant DNA pioneer Scientists finally know where they’re sending the new Mars Rover Share your voice Post a comment Rover fever 14 Photos 0 Mars rovers Space Sci-Tech Space missions are notorious for delays and ESA will need to sort out the parachutes very quickly if it hopes to stay on track to launch the rover in mid-2020. ESA is already planning a new main parachute test before the end of the year. ExoMars is a joint effort between ESA and Roscosmos. The rover is designed to drill into Mars and analyze the soil in search of evidence of life on the dusty planet.The rover itself is on track for completion soon, but the landing systems will need to work flawlessly before they’re given the green light to go all the way to the red planet. Tags
Coal is stockpiled at the Blair Athol mine in the Bowen Basin coalfield near the town of Moranbah, Australia, June 1, 2012 (representational image).Reuters fileIndian conglomerate Adani Group finally inched closer to secure loans from China in order to build a 388-kilometre rail link, which is an integral part of its proposed Rs 1.07-lakh crore ($16.5-billion) Carmichael coal mine project in Australia.”Adani Group is close to securing finance with an announcement expected in coming weeks that Chinese state-owned enterprises, banks, and export credit agencies are backing the venture,” the Australian Broadcasting Corporation (ABC) reported.The company further said: “However, this does not negate the need for support from the Federal and State governments including a Northern Australian Infrastructure Facility (NAIF) loan—every cent of which will be repaid by Adani with interest.”Adani’s coal mine project has been facing serious roadblocks since the inception of the project. Not just financial, but even protests from rights groups. It is over seven years now that the coal mining projects have been stalled by the environment, conservationist and indigenous groups over concerns on global warming and damaging the ecology of Great Barrier Reef.Recently several protests were staged in different parts of Australia against Adani Enterprises’ proposed Carmichael coal mine in Central Queensland.The demonstrations were organised by the Stop Adani Alliance, which is an umbrella organisation for more than 40 groups. The alliance on their website said: “Adani is pulling out all the tricks to build its mega coal mine that will trash indigenous rights, wreck the climate and prop up a boom-bust economy.”For this latest development, the company said, “The purpose of NAIF is to provide loans for economic infrastructure and, again, every cent of this loan will be repaid with interest. The infrastructure Adani is building will be common user infrastructure and will be able to be used by other projects creating opportunities for further jobs and investment.”Earlier last month, the Australian federal ministers had written a formal letter to the Chinese government to confirm that the controversial coal project had passed all necessary environmental approvals, reported ABC.
Road accident illustration by Prothom AloA minor boy was killed after being hit by a minibus at Hogla in Gomostapur upazila on Sunday morning.The deceased was Ibrahim, 7, son of Anarul of the village.Sub-inspector Aminul Islam of Gomostapur police station said the minibus bit Ibrahim while he was crossing the road near his house around 8 am, leaving him dead on the spot.On information, police arrested the bus driver Rabiul and seized his vehicle.
Popular on Variety ×Actors Reveal Their Favorite Disney PrincessesSeveral actors, like Daisy Ridley, Awkwafina, Jeff Goldblum and Gina Rodriguez, reveal their favorite Disney princesses. Rapunzel, Mulan, Ariel,Tiana, Sleeping Beauty and Jasmine all got some love from the Disney stars.More VideosVolume 0%Press shift question mark to access a list of keyboard shortcutsKeyboard Shortcutsplay/pauseincrease volumedecrease volumeseek forwardsseek backwardstoggle captionstoggle fullscreenmute/unmuteseek to %SPACE↑↓→←cfm0-9Next UpJennifer Lopez Shares How She Became a Mogul04:350.5x1x1.25×1.5x2xLive00:0002:1502:15 Superna Kalle, a former longtime Sony Pictures Television exec, has joined Lionsgate’s Starz as executive VP of international digital networks.Kalle will report directly to Starz COO Jeffrey Hirsch and will be based in the company’s Santa Monica, Calif., office. She will lead the international expansion of Starz-branded digital and linear services and channels, overseeing strategy and operations.Kalle spent 16 years at Sony Pictures Television, where she most recently served as SVP and GM of U.S. networks. At SPT, she launched Sony Movie Channel, Spanish-language movie network Cine Sony Television, and getTV, the company’s first digital subchannel dedicated to classic programming. Earlier, she was SPT’s SVP of international networks and VP of corporate development for Sony Pictures Entertainment. After leaving Sony in 2015, Kalle was a senior adviser to several media companies — including Starz, Lionsgate, and CBS/Showtime — on international SVOD strategy, digital operations, restructuring and global business development.“Superna is a globally respected digital and television executive,” Hirsch said in announcing her hire. “Superna’s deep experience in digital platforms, television networks, distribution and entering emerging markets will guide our international businesses, grow our channels’ digital presence and take us to the next level.”Kalle holds a bachelor’s degree in economics from New York City’s Barnard College and an MBA New York U.’s Leonard N. Stern School of Business.Separately on the digital front, Starz earlier this year hired Ameesh Paleja, formerly CEO of Lionsgate-backed Atom Tickets, as chief technology officer.
Copyright 2013 Phys.org All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of Phys.org. Journal information: Journal of Micromechanics and Microengineering (Phys.org)—For many electronic devices, colder is better. At low temperatures, electronic devices such as sensors and detectors operate with a higher efficiency and better overall performance than they do at room temperature. And superconducting devices, known for their zero electrical resistance, require extremely cold temperatures to operate. But in order to make cryogenic electronics more widespread, micro-sized cryogenic coolers need to become cheaper and more reliable. Addressing this challenge, scientists have designed and fabricated a micro-sized cryocooler that cools devices down to 30 K (-243 °C, -406 °F) in about an hour, and has a simple design that lends itself to high-yield fabrication. The researchers, Haishan Cao from the University of Twente in Enschede, The Netherlands, and coauthors from Kryoz Technologies and Micronit Microfluidics, both in Enschede, as well as from the University of Twente, have published a paper on the new micro-sized cryogenic cooler in a recent issue of the Journal of Micromechanics and Microengineering.The new cryocooler is a micro-sized version of a Joule-Thomson (JT) cryocooler, which cools by causing a high-pressure gas to expand as it flows from a high-pressure region to a low-pressure region. As James Joule and William Thomson discovered in 1852, a gas that expands in this way under certain conditions will cool down, a finding now known as the Joule-Thomson effect. In the new study, the micro-sized cryocooler uses two stages to cool a device. The first stage involves a single-stage cryocooler device that other researchers at the University of Twente previously designed, which cools down to 100 K (-173 °C, -180 °F) using nitrogen as the gas. In the second stage, which cools down to 30 K, the researchers used hydrogen as the gas. The reason for using two different gases is that the Joule-Thomson effect only works (i.e., produces a cooling effect) if the expanding gas is already cooled below a certain temperature called its inversion temperature. This critical temperature is different for different gases. If the gas is above this temperature, then expansion will cause the gas to warm up rather than cool down. Nitrogen has a higher inversion temperature than hydrogen, which is why the researchers used nitrogen in the pre-cooling stage, and then cooled the hydrogen through heat-exchange with the nitrogen until the hydrogen surpassed its inversion temperature of 205 K (-68 °C, -91 °F) so that it could be cooled by the second Joule-Thomson process.”30 K is sufficiently cold to cool most electronic devices such as infrared detectors, low-noise amplifiers and high-temperature superconducting devices,” Cao told Phys.org. “To cool superconducting devices based on Nb3Sn or NbTi, an even lower temperature is required. To reach even lower temperature using the Joule-Thomson effect, a helium stage is needed, in which the hydrogen stage works as a precooler for the helium stage.” (Bottom left) Photograph of the microcooler mounted into a vacuum flange and surrounded by a PCB, with gas connections. (Top right) The microcooler shown next to a euro coin for size comparison. Credit: H. S. Cao, et al. ©2013 IOP Publishing Ltd More information: H. S. Cao, et al. “Micromachined cryogenic cooler for cooling electronic devices down to 30 K.” J. Micromech. Microeng. 23 (2013) 025014 (6pp). DOI: 10.1088/0960-1317/23/2/025014 To demonstrate the feasibility of the new two-stage cryocooler, the researchers attached a YBCO film to the device to be cooled to its superconducting state. Starting from room temperature, the scientists showed that the nitrogen stage could cool the film to 94 K in about 20 minutes, and the hydrogen stage could cool the film to 30 K in an additional 40 minutes. During this cool-down process, the film reached its superconducting state, demonstrating the possibility for integrating the cryocooler with electronic devices.One of the biggest advantages of the micro-sized cryocooler is that it has the potential be fabricated at low cost on a large scale. The cooler consists of just three glass wafers ranging in thickness from 145 to 400 μm, which are etched, stacked and bonded together. A stack of wafers can also be cut into multiple microcoolers using a dicing and powder blasting process. Another benefit is that the cryocooler operates at modest pressures, ranging from 0.1 MPa (room pressure) for the low-pressure region and 8.0-8.5 MPa for the high-pressure regions. When the pressure is higher, fabrication becomes more complex, in particular the bonding process. “A 30 K micro cryocooler is the coldest micro cryocooler that has been published in academic journals,” Cao said. “W. Little previously presented a seven-wafer stack two-stage JT micro cryocooler operating at 14 MPa with a cold-end temperature of about 30 K. Our two-stage 30 K JT micro cryocooler is operated with modest pressures and realized in a stack of only three wafers. Compared to three-wafer stack micro cryocoolers, seven-wafer stack micro cryocoolers are much more difficult to fabricate with acceptable yields. Furthermore, high gas pressures add more stringent requirements to the bonding process and severely add complexity to the development of a compressor for closed-cycle operation of the cryocooler.”The researchers hope that the relatively simple device requirements and the ability to cool to cryogenic temperatures (defined as temperatures below about 120 K [-153 °C, -244 °F]) will expedite cryogenic electronics applications. Such electronic and superconducting sensors and detectors could be especially useful in medical and space applications.”In medicine, cryogenic electronic devices can be used in some diagnostic techniques, for example, tracing the spread of breast cancer cells,” Cao said. “To determine whether the cancer has spread, the traditional way is to introduce radioactive particles into the body. But the radioactivity represents a health risk for both patient and medical personnel. Another method is using magnetic particles. However, existing detectors are not sensitive enough to measure the signal of the particles. The signal-to-noise ratio of the detectors could be greatly improved by cooling. Another application could be micro cryosurgery with miniaturized cold tips (for removing cancerous tissue).”Applications of cryogenic electronic devices in space include scientific instrumentation, telecommunications and earth observation, and meteorology satellite. Many science missions in space use optical detectors that operate at cryogenic temperatures to increase their sensitivity. Radio-frequency devices (filters, delay lines, resonators and antennas) based on high-temperature superconductors have high potential to improve the energy efficiency of telecommunications systems or to reduce their size and weight. Earth observation missions require cryogenics because of the utilization of medium infrared detectors (typically operating around or just below 100 K) to image the earth surface. “For these applications, the cooler should be small, low cost, low interference and have a very long lifetime. Joule-Thomson micro cryocoolers are excellent for this, because these have no cold moving parts and therefore can be scaled down to match the size and the power consumption of these devices.”In the future, the researchers plan to experiment with using gas mixtures in order to achieve lower temperatures at lower pressures.”One of the future goals is to combine the micro cryocooler with a sorption compressor to realize a total micro system,” Cao said. “Other future research topics in this area include three-stage microcryocoolers, micro cryocoolers using double expansion cycles and the use of a gas mixture as the working fluid. To reach temperatures near the boiling point of helium gas, it is necessary to use three stages. A nitrogen stage is used to precool a hydrogen stage, which works as a precool for a helium stage. Using a double expansion cycle, a Joule-Thomson cooler can achieve a lower temperature due to the reduction of the pressure drop in the low-pressure line. Compared to pure gas, mixed gases provide equivalent cooling power with significantly lower pressure ratio.” Explore further Faster and more sensitive electronics thanks to compact cooling Citation: Electronics like it cold, and 30 K cryocooler delivers (2013, January 18) retrieved 18 August 2019 from https://phys.org/news/2013-01-electronics-cold-cryocooler.html 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.
© 2018 Phys.org Illustration of electrogates. Insets show a close-up of the area surrounding the trench. Credit: IBM Research-Zurich Journal information: Applied Physics Letters Flow apparatus samples up to 1500 chemical reactions a day Each electrogate consists of a trench etched into the bottom surface of the microchannel, with one electrode patterned over the trench and a second electrode patterned a short distance in front of the trench. When a liquid sample flows along the microchannel in the absence of a voltage, it stops at the trench because the abrupt change in the contact angle creates a pinning force on the liquid. A small voltage (<10 volts) applied between the two electrodes pulls down ions from the liquid to the edge of the trench where the liquid is pinned, which makes this area more wettable. As a consequence, the contact angle of the liquid in this area decreases, causing the liquid to resume flowing across the trench and through the microchannel. The researchers demonstrated that the curvature of the trench determines the reliability and retention time of the electrogates. With a large curvature, they could achieve 100% reliability, start and stop times of less than a second, and retention times exceeding 5 minutes, which can be extended to beyond 45 minutes with additional strategies. The electrogates also work with various types of liquids, including human serum.Among its advantages, the electrogates are easy to fabricate, have long-term stability, are biocompatible, and can be implemented in multiple locations on the same chip. The researchers expect that the electrogates can be easily implemented into low-power, portable microfluidics devices in the future."We are supported by a grant from the EU, and we still have a little bit of time to 'push' electrogates further," Delamarche said. "One task (nearly complete) is to vary the options for fabricating electrogates so that technologists have more freedom to design and fabricate them. This can help spread the concept, we think. Then, we will show specific examples where combining a few electrogates can create more advanced functions for microfluidic systems." Although microfluidics devices have a wide variety of uses, from point-of-care diagnostics to environmental analysis, one major limitation is that they cannot be modified for different uses on the fly, since their flow paths are set during fabrication. In a new study, researchers have addressed this limitation by designing electrogates that can regulate the flow of liquid at different points along the microchannel—a process that can be entirely controlled with a smartphone. The researchers, Y. Arango, Y. Temiz, O. Gӧkçe, and E. Delamarche, at IBM Research-Zurich in Rüschlikon, Switzerland, have published a paper on electrogates in a recent issue of Applied Physics Letters."Point-of-care diagnostics represent a very segmented market," Delamarche told Phys.org. "For each type of test, a microfluidic device needs to be designed and fabricated to ensure optimal assay performances (volume of sample passing through the device, flow rates, time given for the reactions to take place, time given for dissolving some reagents in the chip with the sample, etc.). This is a bit frustrating, and with silicon microtechnology, it is always beneficial to cover as many applications as possible without too much redesign and changes in the manufacturing processes. "This is where electrogates help, and this is what motivated us to invent them. The idea is to make chips much more generic and transfer some of the routing and timing of the flow to a software level, i.e., a protocol uploaded on a smartphone or tablet. Changing protocols on a software level is easy, fast, flexible and convenient."Rather than using mechanical elements such as pumps and valves to control the flow, the electrogates are based on electrowetting. This process involves applying an electric voltage to control the wetting properties of the surface, which in turn controls the flow of the liquid. Explore further The researchers in their lab. Credit: IBM Research-Zurich More information: Y. Arango, Y. Temiz, O. Gӧkçe, and E. Delamarche. “Electrogates for stop-and-go control of liquid flow in microfluidics.” Applied Physics Letters. DOI: 10.1063/1.5019469 Citation: Electrogates offer stop-and-go control in microfluidics (2018, April 24) retrieved 18 August 2019 from https://phys.org/news/2018-04-electrogates-stop-and-go-microfluidics.html 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.