Rodenstock Innovation in Athletic Sunglasses

first_img Citation: Rodenstock Innovation in Athletic Sunglasses (2007, October 22) retrieved 18 August 2019 from https://phys.org/news/2007-10-rodenstock-athletic-sunglasses.html Rodenstock the world acclaimed lens maker is in the development stage of producing athletic sunglasses. The prototype is currently called, Informance. The unique aspect of the Informance is the ability to monitor the athlete´s performance and heart rate and show it in the peripheral vision. The sunglasses display a stop watch and heart rate at one edge. The additional feature added only 7 grams to the weight of the sunglasses.A thin wedge-shaped prism is built into the left edge of the lens on the left side of the glasses. A small polymer battery inside the left arm of the glasses projects an image into the prism from the side. The image is reflected twice before reaching the individuals eye. New Scientist quotes Rodenstock optical engineer, Mike Hazel as saying that the focus of the new design was to make a sunglass that could be styled like a normal spectacle. The features only take up about 12 percent of the field of vision on the left side making it barely noticeable from a straight on view. The other feature is the ability to run for 12 hours without recharging.Other similar sunglasses for pilots and other professionals are generally more cumbersome and heavier and would not be acceptable for mass appeal. The Informance is designed for use by avid sports enthusiasts, outdoor professional work and professional athletes.According to the head of research in optics at Rodenstock, the lens display is 160 x 120 pixels and could be expanded. The ability to show distance and directions by a GPS device is an area Rodenstock is considering at this point. The Informance will be priced at the minimum of $1,000 USD. It should be available in the commercial sector by 2009. The prototype athletic sunglasses Informance can display the heart rate, and monitor performance. The German lens maker Rodenstock has made every effort to make the sunglasses light weight and unobtrusive. Additionally, Informance designers are considering the ability to show distance and directions by a GPS devices.center_img 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.last_img read more

Futuristic Taiwan tower to have floating observatories

first_img(PhysOrg.com) — A futuristic tower called “Floating Observatories,” which resembles a tree trunk with eight floating elevator observatories shaped like leaves, will soon become a major landmark in Taichung, Taiwan’s third largest city. Image credit: DSBA More information: www.dsba.ro/mainEN.php?lang=EN&news=1 Image credit: DSBA The floating elevator observatories can take up to 80 people and are built from lightweight materials developed by the space industries, and covered by a new generation membrane of polytetrafluoroethylene (PTFE). Their design was influenced by science fiction computer games. They move up and down on a vertical track positioned within a strong electromagnetic field and are “self-sustained” by helium balloons. The observatories provide the key exhibit of the museum for the visitors — the city itself — and when nested they are themselves exhibits.The design’s “green” features include a small footprint, natural ventilation through the “chimney” effect, turbines and solar cells to generate power for the building, a fiber optics dome to light basement areas and museum spaces, and rainwater collection and purification. There is also a geothermal power plant in the basement for heating in winter and for heating water. Image credit: DSBA The conceptual design of the tower was made by a team from the companies Dorin Stefan Birou Arhitectura (DSBA), Upgrade.Studio, and Mihai Cracium, and led by DSBA principal architect Stefan Dorin from Romania. The tower design won first prize in the recent Taiwan Tower Conceptual International Competition. Dorin explained the design represented a “technological tree,” with elevator observatories shaped like the island of Taiwan, which is leaf-shaped.The tower, standing over 300 meters high, will include an information center, museum, office tower, conference venue, fixed and floating observation decks, restaurants, and an urban park. Image credit: DSBA Explore further Image credit: DSBA Image credit: DSBA Image credit: DSBA Citation: Futuristic Taiwan tower to have floating observatories (2010, November 19) retrieved 18 August 2019 from https://phys.org/news/2010-11-futuristic-taiwan-tower-observatories.html The Taiwan Tower will be the tallest building in Taichung, but is much shorter than the tallest building in Taiwan, the Taipei 101 skyscraper. The design was chosen from 237 entrants from 25 countries and gives Dorin a prize of around $130,000 as well as the chance to have the tower built to his design. Building of the tower on the one hectare site within sight of the Taiwan Strait is expected to begin in 2012 and take two years to complete.The competition was held to celebrate the centenary of the founding of Taiwan and to commemorate the merger of Taichung County and Taichung City. The government of Taiwan will fund the building. © 2010 PhysOrg.com Taiwan’s TSMC to invest over $9 billion in plant 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.last_img read more

Plant cellulose prevents short circuits in batteries

first_img © 2016 Phys.org Citation: Plant cellulose prevents short circuits in batteries (2016, July 22) retrieved 18 August 2019 from https://phys.org/news/2016-07-cellulose-short-circuits-batteries.html In a new study published in Nano Letters, researchers from the Ulsan National Institute of Science and Technology (UNIST) in South Korea have designed a cellulose nanomat, or “c-mat,” separator membrane that contains a thin layer of nanoporous plant cellulose on top of a thick macroporous polymer layer. By finely tuning the thicknesses of the two layers, the researchers were able to design a separator membrane that delicately balances the tradeoff between preventing leakage current and supporting fast ion transport. With its tiny pores, the nanoporous cellulose layer prevents leakage current between electrodes, preventing short circuits. On the other hand, the macroporous polymer layer’s porous channels are too large to prevent leakage current between electrodes, but their large size enables them to function like “ionic highways” to rapidly transport charges.The new separator has another major advantage: At high temperatures (60 °C), batteries with the new separator membranes have an 80% capacity retention after 100 cycles, whereas batteries with typical commercial polymer separators maintain just 5% of their initial capacity after 100 cycles at the same temperature.The researchers explain that the large capacity loss in the commercial batteries at high temperature occurs due to unwanted side reactions between lithium salts and water, which produces harmful byproducts such as manganese ions. The nanoporous cellulose-based layer of the new separator membranes has a manganese-chelating ability, so that it binds to the manganese ions and prevents them from participating in the reactions that cause capacity loss. In addition, the macroporous polymer layer captures the acidic reactants that produce the manganese ions, resulting in fewer of these ions in the first place.”We demonstrate in this work that the chemically active cellulose-based c-mat separator can mitigate the manganese ion-induced adverse effects,” coauthor Sang-Young Lee, Professor at UNIST’s School of Energy and Chemical Engineering, told Phys.org. “This enables a remarkable improvement in the high-temperature cycling performance far beyond that which is attainable with conventional membrane technologies.”In the future, the researchers plan to modify the separators for potential use in next-generation rechargeable batteries such as sodium-ion, lithium-sulfur, and metal-ion batteries. “The c-mat separator is expected to be used for next-generation high-performance batteries with high temperature stability—for example, in large-sized batteries for electric vehicles and grid-scale electricity storage systems,” Lee said. In addition to its use as a battery separator membrane, the c-mat separator also has potential applications in membranes for desalination systems, as well as for ecofriendly sensors for heavy metal ions. 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. More information: Jung-Hwan Kim et al. “Functionalized Nanocellulose-Integrated Heterolayered Nanomats toward Smart Battery Separators.” Nano Letters. DOI: 10.1021/acs.nanolett.6b02069 Journal information: Nano Letterscenter_img Ternary-layered separator to retard the shuttle of polysulfides towards highly-stable lithium–sulfur batteries Cellulose that originates from plant material is used as a thin layer in a new separator membrane for batteries, resulting in a large increase in capacity retention at high temperatures. Credit: Kim et al. ©2016 American Chemical Society Explore further (Phys.org)—In order to prevent short circuits in batteries, porous separator membranes are often placed between a battery’s electrodes. There is typically a tradeoff involved, since these separators must simultaneously prevent leakage current between electrodes while allowing ions to pass through the porous channels to generate current. Conventionally, these membranes are made of synthetic materials, such as polymers.last_img read more

Jamaat leader sentenced to death for war crimes

first_imgA T M Azharul Islam, a top leader of fundamentalist Jamaat-e-Islami party, was sentenced to death on Tuesday by a Bangladeshi special court for committing warcrimes during the country’s independence war against Pakistan.The International Crimes Tribunal sentenced Islam to death after finding him guilty of charges likes genocides, murders, tortures and rapes.“He shall be hanged by neck until he is dead,” pronounced chairman of the three-member panel of judges Justice Enayetur Rahim while delivering a 158-page verdict after Islam appeared on the dock. Also Read – Pro-Govt supporters rally as Hong Kong’s divisions deepenHe said the convict deserved no punishment other than death penalty as five of the six charges against Islam were proved beyond doubt while in subsequent years after the independence he never showed any gesture of remorse for his acts in 1971.Under the law, Islam, however, could challenge the verdict in the Supreme Court while he is the last of the top Jamaat leaders who were exposed to justice for committing crimes against humanity siding with the Pakistani troops in 1971. Also Read – Pak Army ‘fully prepared’ to face any challenge: Army spokesmanIslam, 61, was charged on six counts of atrocities and in one of the major proven charges he was accused of is leading the massacre of 1,225 people in Rangpur. He was also found guilty of abducting and murdering a Carmichael College professor and his wife.Tight security vigil was enforced as a microbus carried Islam, attired in a cream colour coat, to the tribunal at the Supreme Court complex in the central part of the capital from Dhaka Central Jail. Senior police officials including Dhaka’s police commissioner visited the court complex to oversee the security arrangements with witnesses saying extra numbers of CCTV cameras were installed in different parts of the compound to enforce a close vigil on activities of the visitors.Islam was arrested in August 2012 and was indicted on November 12 last year while the prosecution lawyers said they were satisfied with the judgment as they successfully proved the charges with adequate evidence.“But we are not at all satisfied with the verdict. It was based on fictitious testimonies of witnesses, we will challenge the verdict in the Supreme Court,” defence counsel Tazul Islam told reporters.last_img read more

Knock on wood

first_imgThe expo will be held at India Expo Centre, Greater Noida, from February 4 – 7. It will comprise eight country pavilions, 450+ exhibitors from 20 countries including China, Germany, Italy, Canada, France, Taiwan, Turkey and USA along with India. Visitors will be able to access world’s most modern woodworking technology, over 500 varieties of machines, tools, materials, and furniture hardware and accessories. The expo is likely to be visited by more than 15,000 buyers which will include craftsmen, woodworkers, furniture manufactures hardware distributors /dealers etc. Buying delegations from Bhutan, Nepal, Sri Lanka and South East Asian Countries have also confirmed their participation. Also Read – ‘Playing Jojo was emotionally exhausting’The tremendous growth of the Indian woodworking industry and its continuous growth into a refined and mechanised sector have opened up immense business opportunities in India for global Woodworking majors. The Indian furniture manufacturing industry is pegged at Rs 120,000 crore and employs more than 300,000 people in the organised sector. But a mere 15 per cent of India’s woodworking industry is organised. Its semi-skilled carpenters, self-styled interior decorators and small-scale local manufacturers will need to be trained and organised to meet future market demands and exploit business opportunities. Also Read – Leslie doing new comedy special with NetflixDelhiWood 2015 will help in transforming the unorganised woodworking units in the country into adopters of material and manufacturing technologies for organised, industrial-scale production.In such a scenario, DelhiWood 2015 will offer a great opportunity to small, medium and large wood-based manufacturers to become competitive and benefit from the burgeoning market. The Expo will catalyze the growth and demand by opening opportunities whilst connecting the woodworking community with international and domestic innovations in production technologies.last_img read more

Damania quits AAP amid allegations of horsetrading against Kejriwal

first_imgDamania, known to be close to Delhi Chief Minister Kejriwal, lashed out at the party leadership saying she had backed the AAP chief for “principles” and not “horse-trading”.”I quit…I have not come into AAP for this nonsense. I believed him…I backed Arvind for principles not horse-trading,” she tweeted.A senior leader from Maharashtra, Damania had unsuccessfully contested from Nagpur constituency against Union Minister and senior Bharatiya Janata Party (BJP) leader Nitin Gadkari whom she had accused of corruption. Also Read – Need to understand why law graduate’s natural choice is not legal profession: CJIThe resignation of Damania comes at a time when the AAP is battling internal strife after two senior leaders Prashant Bhushan and Yogendra Yadav criticised Kejriwal openly for his working style.Former AAP MLA from Rohini, Rajesh Garg alleged that Kejriwal had spoken about breaking the Congress and forming the government with the support of their MLAs in Delhi last year. Garg also circulated an audio clip of a purported telephonic conversation of Kejriwal to back his allegations. Also Read – Health remains key challenge in India’s development: KovindDemanding an inquiry into the matter in the next 48 hours, Damania said Kejriwal, Yogendra Yadav and Prashant Bhushan should apologise to the volunteers.”I demand an inquiry in 48 hrs into all these allegations. Volunteers have given their sweat & blood. It is not for the party…It is for the country. AAP will only work on siddhant (principles). Just enough of nonsense. Arvind, PB & YY should apologise to the karyakarta in next 48 hrs for their acts”AAP is not a political party. It was a ray of hope for this country. Thousands of vols slogged for it. Just no one can play with the siddhant,” she tweeted.last_img read more

TMC to hold competition in N 24Pgs to judge peoples knowledge about

first_imgKolkata: The North 24-Parganas district Trinamool Congress will hold competitions in all wards and blocks across the district, where people will have to speak for seven minutes on the development projects of Chief Minister Mamata Banerjee.The district administration is hopeful that this initiative will contribute in raising awareness about the various schemes of the government in the best possible manner.”The competition will start from August 16. It will commence right from the village level and then extend to the blocks and towns and finally, there will be a competition in the district level. It will also build awareness about the development schemes undertaken by our party supremo Mamata Banerjee,” said Jyotipriya Mallick, district president of TMC North 24-Parganas. Also Read – Rain batters Kolkata, cripples normal lifeThe decision was taken at the core committee meeting of North 24-Parganas that was held on Sunday.A source in the district TMC said that Trinamool Youth Congress will organise the entire matter and the district-wise competition will be held sometime in the month of September. The whole idea has been conceived by Abhishek Banerjee, who is the president of the party’s youth wing.”It will be a sort of talent hunt for creating a panel of good speakers and show that we do not always need senior leaders for holding rallies successfully,” a TMC leader said. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedChief Minister Mamata Banerjee has instructed her party leaders to ensure that more and more people in the state get the benefits of the various projects taken by her government, that include Kanyashree, Rupashree, Sabuj Sathi, Sabujshree and Khadya Sathi to name a few. “This stride will help us reach every doorstep and we hope that this will be a model for the other parts of the state,” the leader maintained.Mallick said from August 1 to 14 there will be meetings at every booth level, where the party will be raising voice against the BJP government’s anti-people policies.last_img read more

Sanjiban Hospital ties up with Malaysias Lincoln University College

first_imgKolkata: Sanjiban Hospital in Hooghly has tied up with the Lincoln University College (LUC), Malaysia, to introduce Doctor of Medicine (MD) course which the hospital authorities have claimed to be an equivalent degree to that of the MBBS in India.The private hospital group on Saturday made the official announcement about the new initiative which, they claim, would be soon introduced. Sanjiban Hospital authorities are yet to declare what would be the intake capacity of the course, offered by the foreign university and some other necessary details related to the new course. Also Read – Rain batters Kolkata, cripples normal lifeAccording to a senior official of the Sanjiban Hospital, the medical aspirants will get an opportunity to enroll themselves and study in its campus here at Fuleswar in Hooghly but the degree would be awarded by the LUC from Malaysia.Dr Subhasis Mitra, Director, Sanjiban Hospital, said the step has been taken so that the crisis of doctors can be addressed. He also added that the hospital has recently signed a collaborative agreement with the LUC to begin the MD course where students from the state will obtain a degree from the foreign university that would be treated at par with the MBBS. The Medical Council of India (MCI), the highest regulating body, has given a clearance to the course, Dr Mitra maintained. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killed”The main objective of this programme is to build a high-quality health education system by providing an innovative platform. Our country requires 20 million doctors by 2030 and the doctor-patient ration in the country is pitifully low. The number of medical seats needs to be increased,” Dr Mitra said. West Bengal University of Health Sciences has already approved various paramedical, healthcare and diploma courses run by the college, he added. The students can also get a chance to qualify for licensing examinations like the United States Medical Licensing Examination (USMLE), Professional and Linguistic Assessments Board test (PLAB), Australian Medical Council (AMC) Examination and Foreign Medical Graduate Exam (FMGE) by studying in Sanjiban Hospital campus.last_img read more

WBFDC looks to up the ante in ecotourism at N Bengal

first_imgKolkata: The West Bengal Forest Development Corporation (WBFDC) has made elaborate plans to boost ecotourism in North Bengal through a major overhaul of its properties. It is also coming up with a new ecotourism camp adjacent to Jhalong waterfall with lodging facilities for the tourists.”Our purpose behind the renovation of our resorts and construction of the new camp at Jhalong is aimed at making people aware of the ecology and at the same time, educate them about the importance of conserving them. Our ecotourism resorts are ideal for those who love serene and peaceful ambience and look for relief from the hustle and bustle of the concrete city life,” said Ravinder Pall Saini, managing director of WBFDC. Also Read – Rain batters Kolkata, cripples normal lifeWBFDC has decided to distribute booklets to educate the tourists about the dos and don’ts during their period of stay at its resorts, all of which are located in and around the forest area.”We want to inculcate the message to our tourists that an eco resort is not like a conventional hotel and they have to adhere to certain rules while staying in it. Plastic is completely banned, there is restriction on round-the-clock electricity as too much light discourages animals to venture near the resort,” a senior WBFDC official added. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedIt may be mentioned that there is already an ecotourism resort of WBFDC at Jaldhaka, which enjoys full occupancy throughout the year. “Now, we are adding to our existing accommodation and at least 20 more tourists would be able to put up at Jaldhaka Resort,” Saini added. The work for renovation and adding of occupancy has already been taken up in collaboration with North Bengal Development department.In North Bengal, the WBFDC has nature resorts in places such as Jaldhaka, Murti, Paren, Rasikbil, Suntalekhola, Loleygaon, Lava Kalimpong, Mongpong and Lepchajagat. The locations of these properties and the excellent hospitality provided by the staff ensure steady reservations for these resorts throughout the year.It may be mentioned that WBFDC has roped in some local villagers from Panijhora to work at its Murti Resort in Dooars.”They not only do cooking and other activities for tourist hospitality but also guide them about the best time for animal sighting during jungle safari. We are looking at similar tie-ups with local youths for our other resorts,” a senior WBFDC official added.last_img read more

TMC activist murder case 3 more names crop up

first_imgKOLKATA: In the course of investigation into the murder of Satish Sharma, a Trinamool Congress activist at Titagarh, Barrackpore Police has come to know about a contract of Rs 2.5 lakh that was put out for his murder.One of the accused, Kala Munna, in the face of interrogation admitted to have received Rs 20,000 as advance money for committing the crime. The investigating officers are trying to find out the accused who put out the contract. Police also came to know about the modus operandi planned to commit the crime. Also Read – Rain batters Kolkata, cripples normal lifeThe names of three persons, who had engaged the contract killers, have popped up during police interrogation and are yet to be confirmed. As decided, the accused were given Rs 20,000 in cash and the remaining amount would be handed over after the crime was committed. The senior police officers of Barrackpore Commissionerate were not ready to reveal the names of the three other accused who are still at large. It may be mentioned that police have already arrested four persons for their alleged involvement in the incident. They are Bhola Prasad, Kala Munna, Seikh Samir and Sanjay Das. Kala Munna is the person who shot the victim. Police said Samir and Sanjay are the residents of the area. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedPolice arrested the four accused after conducting raids at various places in North 24-Parganas. They are remanded to police custody after being produced before a district court on Tuesday. Sharma was shot at by the miscreants on last Monday morning when he was sitting at an under construction Kali Puja pandal at Titagarh. The miscreants came on two motorcycles. Kala Munna has revealed some crucial information to the police which might help them to nab the masterminds. Meanwhile, the victim succumbed to his injuries at a private hospital in the city on Tuesday morning. Some of the locals on Tuesday took out a demonstration protesting against the incident and demanded immediate arrest of the accused. Police are probing whether a quarrel over promoting business led to the murder. As per the preliminary investigation, the investigating officers are ruling out its possibility.last_img read more