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. Another AR experience is being provided for shoppers in Shinjuku Ward in Tokyo at the children’s department of an Isetan department store. This AR system is being exhibited until December 25 this year and was developed by Sky & Road Co. Ltd. and Sony Music Communications Inc (SMC), in conjunction with Total Immersion, a French software company that provided the AR development kit. In this augmented reality system, one or more people stand in front of a display screen and camera. An image of the people is then displayed on the screen with a virtual image superimposed on it, placing them in a virtual “wonderland,” such as a winter snow scene or a magical fantasy land.via TechOn© 2009 PhysOrg.com Citation: Augmented reality systems appearing in Japanese shopping malls (2009, December 9) retrieved 18 August 2019 from https://phys.org/news/2009-12-augmented-reality-japanese-malls.html (PhysOrg.com) — Augmented reality (AR) systems are being developed for real applications in store windows and shopping malls in Japan. The company plans to increase the number of items that can be tried on to nine by October 2010, and by the same time in 2011 will include side and back views of the person. Trying on clothes in a magic mirror
Journal information: New Journal of Physics As the researchers explained, they intentionally removed the equal volumes constraint when developing their search method because it allowed them to design the algorithm in a new way: instead of directly minimizing the surface area of a structure, they maximized the polyhedra’s average isoperimeters (the perimeters shared by all adjacent polyhedra). While these two approaches are different, they are ultimately equivalent.The researchers used the new algorithm to explore several 3D structures made of between two and 64 polyhedra. Starting with a specific number of randomly arranged points in 3D space, the algorithm begins to move the points around. After each iteration, the algorithm calculates the new average isoperimeter, and based on the result either keeps or rejects the new configuration with a certain probability. After millions and sometimes billions of iterations, the points eventually form the vertices of multiple polyhedra that together form a 3D structure with very low surface area.As there is currently no way to prove what the most optimal space-partitioning structure is (with or without equal-volume cells), the researchers plan to continue searching a wide variety of structures of all types. Their best guess is that even more optimal structures exist, and they plan to use their algorithm to continue their exploration.The researchers also expect that the algorithm could generate other unique structures. One particularly interesting structure they discovered here is a 40-polyhedra structure that is more optimal than Kelvin’s structure but not quite as good as the Weaire-Phelan structure. This highly complex structure is also unusual in that it doesn’t belong to a category of structures called Frank-Kasper structures, which researchers have traditionally focused on for optimal space partitioning. The finding suggests that other optimal structures may also exist outside of this category. Although Kelvin’s problem wasn’t originally proposed to meet any practical need, optimal space partitioning now has a variety of applications. In the medical field, these concepts have been used to design strong, lightweight bone tissue replacements. Optimal space partitioning has also inspired architecture, with one notable example being the swimming venue built for the 2008 Beijing Olympics. The building, which is called the Water Cube, is based on the Weaire-Phelan structure. Citation: New 3-D structure shows optimal way to divide space (2016, November 25) retrieved 18 August 2019 from https://phys.org/news/2016-11-d-optimal-space.html © 2016 Phys.org One of the new 3D structures has the lowest surface of any known space-partitioning structure: it is made of 24 polyhedra, some of which have 12 faces and some of which have 16 faces. Since the 12- and 16-faced polyhedra here have different volumes, the new structure doesn’t satisfy Kelvin’s original requirement for equal volumes. Credit: Opsomer and Vandewalle. ©2016 IOP Publishing (Phys.org)—Researchers have discovered a new 3D structure that divides space into 24 regions, and have shown that it is the best solution yet to a modified version of a geometrical space-partitioning problem that has challenged researchers for more than a century. 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. New breakthrough in bubble research More information: E Opsomer and N Vandewalle. “Novel structures for optimal space partitions.” New Journal of Physics. DOI: 10.1088/1367-2630/18/10/103008 The new algorithm uncovered this 3D structure composed of 40 polyhedra of two different types. Credit: Opsomer and Vandewalle. ©2016 IOP Publishing In 1887, Lord Kelvin asked how space could be partitioned into 3D structures of equal volume in a way that minimizes the total surface area of each structure. It must be possible to tightly pack many of these structures together with no gaps in between them—in other words, they must be “space-filling” structures. Each structure can take on a variety of complex 3D shapes, or “polyhedra,” either as a single polyhedron or a combination of multiple smaller polyhedra of various types. The challenge is to figure out what particular types of polyhedra to use in order to minimize the outer surface area of the entire structure. Kelvin’s best solution to this problem was a single polyhedron called a “tetrakaidecahedron,” which has 14 faces: six squares and eight hexagons. Since this is the shape obtained when cutting the corners off a 3D diamond shape, it can also be thought of as a truncated octahedron.Although Kelvin’s solution stood for more than a century, in 1994 Denis Weaire and Robert Phelan at Trinity College Dublin used numerical simulations to discover a more optimal space partition. Weaire and Phelan’s solution is made of eight polyhedra of two different types, though both types have the same volume: six of Kelvin’s tetrakaidecahedron and two dodecahedron (which has 12 faces). Together, these eight polyhedra make up a 3D structure that has 0.3% less surface area than Kelvin’s single tetrakaidecahedron. The Weaire-Phelan structure has remained the most optimal solution to Kelvin’s problem for the past 22 years. Now in the new study, physicists Eric Opsomer and Nicolas Vandewalle at the University of Liége in Belgium have developed a new algorithm for finding space-filling composite polyhedral structures with minimal surface area. Using the new method, they discovered that a novel 3D structure made of 24 polyhedra has an even lower surface area than the Weaire-Phelan structure. The 24 polyhedra are of two different types: some have 12 faces and some have 16 faces. Unlike the Weaire-Phelan structure, in which the two different types of polyhedra have equal volumes, the 12- and 16-faced polyhedra here have significantly different volumes. For this reason, the new structure doesn’t satisfy Kelvin’s original requirement for equal volumes. “Unfortunately, it is not a ‘true solution,’ since equal volume cells are a requirement for the original Kelvin problem,” Opsomer told Phys.org. Nonetheless, the structure is still interesting for other reasons. “These results may lead to the discovery of structures with potential implications for material physics, medical research, and other areas,” Opsomer said. Explore further
Not all can transform their lives in to something that is worth the time and effort of hundreds others. And when it comes to a life of difficulty and pain – the effort is a million times more.The Bindu Art School does something not many others have dared to do till date. They use art to transform the lives of people affected by leprosy. By painting and selling pictures, students attain financial independence without the discrimination of receiving alms and support similar people with their income. Also Read – ‘Playing Jojo was emotionally exhausting’Drawing from intense experiences, students produce impressive paintings, tinged with a rare type of beauty. Founded by the Austrian Multimedia Artist Werner Dornik and the Indian Social Activist, Padma Venkataraman, the schools opened in 2005 at Bharatapuram, Tamil Nadu.Werner Dornik has been working since 1980 with photography, text, music and painting in Europe and Asia. Besides 40 one man exhibitions he published amongst other things the photo-text-volume ‘If you go you just go’, given an honorary prize and then awarded the State Prize ‘The most beautiful books of Austria’. His book- and exhibition projects are mostly directed against the ‘consumer society’, encourage spiritual freedom, and support social projects. The proceeds go mainly to the Leprosy Stations Khandwa and Indore in India. Also Read – Leslie doing new comedy special with NetflixAs curator of the artist-exchange-project ‘The Search Within’, together with 20 artists from Austria and India, he illuminates the political and spiritual backgrounds of modern painting in both countries over three years. With the multimedia project ‘The Journey from: Technic to: Techno’ in Austria, Germany, Portugal, Italy and India, he pointed at the dangers of technical development.Padma Venkataraman, has been active in social welfare programmes at National and International levels. In Vienna she was, among other things, permanent representative of the All India Women’s Conference to the U.N., member of several NGO Committees accredited to UN, such as Committee on Narcotics, Committee on Disabled, etc., Vice President of NGO Committee on Women, President of the United Nations Women’s Guild. In India, she has been most active in grassroots work in leprosy rehabilitation for 15 years. Was Honorary Director of a FAO/All-India Women’s Conference Project for leprosy patients in the 4000 strong Shahdhara Colony in Delhi; and worked with Hope World Wide to construct houses for 800 families there. For over 5 years was Honorary Director of a major Tamil Nadu wide DANIDA-funded leprosy rehabilitation project under the auspices of the Women’s Indian Association, Chennai.The art school is holding an exhibition in the city with paintings made by leprosy patients. Do your bit for the cause, head over and give it a look.DETAILWhere: Azad Bhavan Art Gallery, Azad BhavanWhen: On till 27 March
The Kolkata-based jewellery chain, Senco Gold and Diamonds, has remained the first choice for many families since ages. Be it a wedding, puja or any other occasion, Senco has the perfect collection to make one look absolutely gorgeous and leave others speechless. The business, which was started from scratch by Late Maran Chand Sen, soars high amongst other jewellery brands in the market. Senco Gold and Diamonds’ stores are spread all over West Bengal, Delhi, Mumbai, Bengaluru, Patna, Bhubaneswar, Cuttack, Jamshedpur, Ranchi and Guwahati among others. Also Read – Add new books to your shelfIt not only has a pan-Indian customer base but is also involved in exporting gold and diamond jewellery to the Middle East, Singapore, UK and
Kolkata: In a major infrastructure revamp the Calcutta Medical College and Hospital (CMCH) has got a renovated labour room, which will help the hospital authorities provide best quality treatment to the patients.The CMCH authorities have claimed that the labour room has been given a new shape along the lines of what is generally found in some top private hospitals in the country. There has been an infrastructure overhauling at the labour room in the Eden building only to ensure quality treatment. Also Read – Rain batters Kolkata, cripples normal lifeIt may be mentioned here that after coming to power in the state in 2011, the Mamata Banerjee government has laid great emphasis on quality treatment for infants and expecting mothers, besides others. A series of new schemes have been introduced and several projects have been executed in various state-run medical colleges and hospitals across the state. Banerjee has also instructed the Health department officials to focus on healthcare of newborn babies and their mothers by enhancing infrastructure at the gynecological units of all the hospitals. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedDr Nirmal Maji, who is the Rogi Kalyan Samiti chairman of CMCH, inaugurated the renovated labour room in presence of senior officials of the hospital on Thursday. As many as 14 tables have been put inside the labour room and a 12-bed observation ward has also been thrown open. A 7-bed High Dependency Unit (HDU) has also been installed, which will be extremely handy for the gynecology department. Three stepdown beds have also been put in place. Many new machines have been installed at the department as well. Dr Partha Mukherjee, the head of the department of gynecology, said the newly renovated labour room will enable the hospital authorities cater to the patients in a better way and the patients will be able to avail the best quality treatment here in the hospital. With the innovations, it has turned into a state-of-the-art labour room.
Kharagpur: In a scathing attack on BJP, Trinamool Youth Congress president Abhishek Banerjee said the party cannot win the Lok Sabha elections by conducting riots, playing the communal card or highlighting fake nationalism.He was addressing a mammoth rally here on Tuesday afternoon. “BJP is trying to win the elections by conducting riots or by using fake nationalism. Bengal has a different culture and no one can gain anything here by playing the communal card,” he said. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataBanerjee alleged that the BJP leaders who are coming for election campaigns are all harping on the communal agenda to divide the Hindu and Muslim communities. “BJP sells Hinduism to win elections and with this in mind, spreads hatred against the Muslims. This is most unfortunate. Religion is private and in social life our only philosophy is to serve the people,” he added. Banerjee said the 2019 Lok Sabha election is “not a fight between Trinamool and BJP. It is a fight between Bengal’s rich tradition and culture on one side and the Centre’s extortion on the other.” Also Read – Lightning kills 8, injures 16 in stateHe alleged that BJP has looted the country in the past five years. “You will not hear a single word from them on note ban which was implemented to stop black money and terrorism. BJP does not say anything on the hasty implementation of GST either, along with farmer suicides and why 2 crore people lost their jobs. They only talk on religion to incite one community against the other,” the Trinamool Youth Congress president stated. Banerjee urged people to cast their votes in favour of party nominee Manas Bhuniya. “Undivided Midnapore had played a major role in the freedom movement. In 2019, the district will play a major role in driving out the Modi government. On May 23 when the ballot boxes will be opened, people will see that Trinamool Congress has bagged 42 out of 42 seats,” he said. He also urged people to visit the polling stations early and exercise their franchise.
Worried that your son or daughter sleep more even during final exams week? If so, take heart. According to a study, students who sleep for eight hours are more likely to perform better. “Better sleep helped in final exam performance, which is contrary to most college students’ perceptions that they have to sacrifice either studying or sleeping,” said Michael Scullin, Assistant Professor at Baylor University’s College of Arts and Sciences. Also Read – Add new books to your shelfFor improvement in academic performance, a student does not have to be an ‘A’ grade, the researchers said. The findings showed that whether a student was an A, B, C, or D student before their final exam, sleeping eight hours was associated with a four-point grade boost. “It is worth noting that one student who had a D-plus grade before the final but slept more than eight hours for a week during finals week remarked that it was the first time her brain worked while taking an exam,” Scullin said. Also Read – Over 2 hours screen time daily will make your kids impulsivePoor sleep is common during finals as students cut back on sleep, deal with more stress, use more caffeine and are exposed to more bright light, all of which may disrupt sleep. Fewer than 10 per cent of undergraduates maintain the recommended average of 8 hours a night or even the recommended minimum of 7 hours, the researchers said. In the study, the students were given extra points if they met “the 8-hour Challenge” – averaging eight hours of sleep for five nights during final exams week. The participants included undergraduate interior design students and students in upper-level psychology. They wore sleep-monitoring wristbands for five days for accurate results.
Making resolutions and scheduling actions for New Year is something that everyone aspires for. But, the real challenge is in keeping up the momentum to achieve the goals. Chaotic routines, dwindling will-power or plain laziness tend to succumb to these at some point or the other. However a few steps might help you to achieve the goals you have set for yourself in 2019. Experts list some ways to keep up with your New Year resolutions: Trick your brain and start by familiarising your mind with your resolutions by visualising them. Write down your goals and stick them at some corner you visit often like your bedroom walls or office cubicle. These work as perfect reminders which we often require. This will make you feel more inclined towards your goal without positioning it as a threat to your habits. Also Read – Add new books to your shelfRecharge your spirits and boost yourself with some pep talk by listening to self-help podcasts. When routine wears you down, escape it with motivational and inspirational sessions on podcast platforms. From health to career goals, you will find a countless number of topics on how you can set realistic goals and achieve them. Also, Set practical and achievable goals keeping in mind your budget. Ensure the goals are specific and measurable for example, ‘I want to lose 5 Kgs’ is a better-defined goal which you can work towards than ‘I want to have a figure like some Bollywood actress’. Research well on the place you want to visit and plan the duration and dates for your travel in advance. Book the tickets accordingly and the moment that is done, you will try your best to make that travel happen.