Power Felt uses body heat to generate electricity

first_img(PhysOrg.com) — Among the many applications of flexible thermoelectric materials is a wristwatch powered by the temperature difference between the human body and the surrounding environment. But if you wanted this watch made of low-cost carbon nanotube (CNT)/polymer materials, you would currently need a piece of fabric with an area of about 500 cm2, which is about 50 times greater than the area of a typical wristwatch. More information: Corey A. Hewitt, et al. “Multilayered Carbon Nanotube/Polymer Composite Based Thermoelectric Fabrics.” Nano Letters, Article ASAP. DOI: 10.1021/nl203806q In order to make such applications more practical, a team of researchers has developed a new multi-layer CNT/polymer design and demonstrated that it has a greatly increased power output compared to previous designs. The new CNT/polymer, which the researchers call “Power Felt,” also has the potential to be much less expensive than other thermoelectric materials.The research team, which includes Ph.D. student Corey Hewitt and Professor David Carroll from Wake Forest University, along with collaborators from other institutions, has published a paper on the new thermoelectric fabric design in a recent issue of Nano Letters.Although thermoelectrics have been studied and used commercially for several decades, they’re traditionally made of inorganic materials, such as bismuth telluride (Bi2Te3). But recent research has shown that organic materials could provide a promising alternative, with advantages such as low cost, ease of production, and flexibility. Yet for now, organic materials still lag behind inorganic ones in terms of performance. One of the keys for designing a high-performance thermoelectric fabric is creating a large temperature difference on opposite sides of the material. Since CNT/polymer thermoelectric materials are very thin, the temperature difference perpendicular to the film’s surface is limited. To address this problem, the researchers here designed a multi-layer CNT/polymer film that allows for the arrangement of the temperature gradient parallel to the film’s surface. The film consists of up to hundreds of alternating layers of conducting material (a polymer containing CNTs) and insulating material (pure polymer) bonded together. Each layer has a thickness of just 25-40 µm. When the fabric is subject to a temperature difference parallel to the surface, electrons or holes travel from the hot side to the cold side due to the Seebeck effect, which converts temperature difference into voltage. As the researchers explain, the amount of generated voltage (and total power output) is equal to the sum of contributions from each layer. So adding layers to the fabric is equivalent to adding voltage sources in series, and the number of layers is limited only by the heat source’s ability to produce a sufficient change in temperature throughout all the layers. Here, the heat source’s temperature is limited to 390 K (117 °C, 242 °F), the point at which the polymer begins deforming. Journal information: Nano Letters When the multi-layer fabric is exposed to a temperature gradient, charge carriers (electrons or holes) travel from the hot side to the cold side due to the Seebeck effect. The resulting voltage can be read across the ends of the first and last conduction layers. Image credit: Hewitt, et al. ©2012 American Chemical Society Explore further Experiments on a 72-layer fabric demonstrated a maximum power generation of 137 nW at a temperature difference of 50 K. But the researchers predict that the power output can be increased; for example, they calculate that a 300-layer fabric exposed to a 100 K temperature difference has a theoretical power output of up to 5 µW. From another perspective, the wristwatch mentioned above would require much less fabric than the current requirement of 500 cm2. “As presented, the areal requirement of our fabric is on the order of approximately 10 cm2,” Carroll told PhysOrg.com. “However, the point of the paper is to show that the fabric’s layers add somewhat linearly. This means that, as more layers are woven into the fabric (and these can be extraordinarily thin layers), the more power can be packed into a smaller area. So the fabric we show simply demonstrates this fact but doesn’t optimize it. Thus, it may take 10 cm2 of the fabric we show, but we have also made fabrics for which only a few cm2 could power the watch. And we could go further.”In terms of cost, if CNT/polymer thermoelectrics are produced on a large scale, the electricity they generate could cost as little as $1 per watt due to the low material cost and ease of production. In contrast, Bi2Te3 thermoelectrics currently generate electricity at a cost of about $7 per watt. As Carroll explained, the true test of the materials will be cost.“What is different in what we have done is to produce something in a form factor that allows for the application of large areas of the materials,” he said. “Thus, large amounts of power can be generated and, as long as the cost is low, then the $/W is competitive with other forms of energy capture. Of course this would not be possible without two major innovations in the paper. The first, as I have already pointed out, is the origami-like folding of the fabric that allows for the interlayers to add their power together. The second pertains to that ‘cost’ thing. Notice that we do not use pure carbon nanotube mats. Rather, our mats are primarily commodity polymers with nanotubes added. Thus the cost of the expensive element is kept to a minimum without sacrificing the overall performance.”The researchers predict that low-cost organic thermoelectric fabrics could have a multitude of applications. Besides the wristwatch, another wearable application could be winter jackets with thermoelectric inside liners that use the temperature difference between body heat and the outdoor temperature to power electronic devices, such as an iPod.Other potential applications include recapturing a car’s wasted heat energy in order to improve fuel mileage, and lining a vehicle’s seats with the fabric to provide electricity for the vehicle’s battery. If installed under roof shingles, the fabric could generate electricity on hot days to help lower a building’s electricity bills. And in emergencies, the fabric could potentially be used to power a cell phone or flashlight.“There are a very wide variety of applications for which these materials will now be perfectly adequate [with their current power output],” Carroll said. “Furthermore, if more power is required, there is the option of simply making larger sheets of fabric. Because of the cost advantages, this is still cheaper than going to more expensive Bi2Te3. Imagine, for instance, putting this material throughout the bodies of automobiles, supplying both sound dampening (which they must already do) and adding the functionality of power scavenging for only a nominal cost above the materials used currently. As with all organic electronics, the real transformative power of this innovation lies in its economic vs. technical advantages.”In the future, the researchers plan to further improve the power output of each film, using methods such as chemical treatment of the CNTs and increasing the electrical conductivity of the polymers. “Will we improve the performance? YES!” Carroll said. “We have already begun making significant advances in improving the overall power output and there is much more ground to cover. For you physics readers out there, the basic principle of suppressed phonon modes through scattering processes, coupled with fractal networks made of sections of phase coherent transport, is still young and we are confident we have not yet tapped into the real potential yet.” The flexible, lightweight CNT/polymer thermoelectric fabric contains hundreds of alternating layers of conducting and insulating material. Image credit: Hewitt, et al. ©2012 American Chemical Society Copyright 2012 PhysOrg.com. All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of PhysOrg.com. Citation: ‘Power Felt’ uses body heat to generate electricity (2012, February 28) retrieved 18 August 2019 from https://phys.org/news/2012-02-power-felt-body-electricity.html New nanotechnology converts heat into power when it’s needed most 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

Electronic nose prototype may be worn for safetysniffing

first_img Explore further © 2012 Phys.Org 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: www.peratech.com/via Technology Review, CNET Citation: Electronic nose prototype may be worn for safety-sniffing (2012, May 12) retrieved 18 August 2019 from https://phys.org/news/2012-05-electronic-nose-prototype-worn-safety-sniffing.htmlcenter_img Quantum Tunnelling Composite Materials to Aid Next Generation Tactile Robotic Skin Development The key differentiator in the Peratech nose comes from its materials. The sensor was developed using the company’s Quantum Tunnelling Composite (QTC) material, which has attracted much interest among researchers in and outside the company. Peratech says its Quantun Tunnelling Composite is a class of electrically conductive material, and its technology was developed in conjunction with the University of Durham based on discoveries by the company founders. Peratech won this year’s Queen’s Award for Enterprise in the Innovation category for its QTC technology.A University of Durham paper further defines QTC as a new type of metal-polymer; the materials change their resistance when a force is applied. In this case, the polymer content of the composite swells when exposed to VOCs. The material shows changes in electrical conductivity when mechanically deformed in any way (compressed, stretched, etc). “The reason for this unusual electrical behavior is thought to be due to a quantum-mechanical tunnelling process, whereby conduction electrons tunnel from one metallic grain to another.“The possibilities of the company’s device as a wearable sniffer may take the form of protective clothing for first responders who must carry out their work in areas that may be chemically contaminated. The prototype is also suggested as making its way into general clothing for people who need to monitor their health. Quantum Tunnelling Composites actually form an entire area of material science with a range of possible applications. The apps range from robotics to touch screens to consumer electrical products. David Lussey, Peratech’s chief technology officer, considers its QTC technology as “a small tiger by the tail.” He said that there are many ways in which QTC could be put to use but the company is focusing on one thing at a time. The electronic nose application was developed with the QTC research group at the University of Durham. Professor David Bloor, who has been part of the collaboration with Peratech, also considers Quantum Tunnelling Composite as unique in materials science. Referring to investigations of its properties by a team of researchers and students, he said “these never cease to amaze and open up different ways in which it can be used.”Peratech says it is looking for companies interested in licensing the technology from them to develop products. (Phys.org) — A UK company has developed an electronic nose that the company says can make a real difference, as a fast-acting device for detecting harmful substances in the environment. Peratech claims its electronic nose can pick up the presence of volatile organic compounds (VOCs) quickly and that its fast-acting sniffer has a large response signal (change in electric charge). The company also says its sensors have low power requirements that could be supplied by a small dedicated power source integrated into clothing.last_img read more

Developing a 3D collagen model to test magneticassisted osteogenesis in vitro

first_img Now published in Scientific Reports, the results demonstrated that SMFs, IONPs and the collagen matrix were able to stimulate the proliferation, alkaline phosphatase production and mineralization of osteoblasts. The process was enabled by influencing matrix-cell interactions to influence the expression of Runx2, ON, BMP-2 and BMP-4. The collagen model offered insight to progressively form a novel mineralized 3-D bone model and understand magnetic stimulation on osteogenesis. Additional studies can be conducted with the model for applications in tissue engineering and regenerative medicine. In the U.K. alone, the number of patients suffering from bone fracture have a substantial economic impact on the quality of life as evidenced with costs to the National Health Services (NHS). During bone injury, the biological and mechanical process of physiological regeneration replaces the injured bone with new bone at the site of injury. The metabolic process is complicated and requires the interaction of many factors, including growth and differentiation factors such as hormones, cytokines and extracellular components; meanwhile inadequate or interrupted factors can lead to delayed healing or impaired/non-union of bone. The cellular and molecular mechanisms of magnetic stimulation-based bone regeneration require further understanding at present. To evaluate the phenomenon in the lab, a three-dimensional (3-D) native collagen model was recently developed via plastic compression to produce a cellular, dense and mechanically strong collagen structure. To produce cell-laden models in the study, Zhiyu Yuan and colleagues incorporated osteoblast cells (MG-63 cell line) and magnetic iron oxide nanoparticles (IONPs) into the collagen gels. Using 3-D printing, a magnetic bioreactor was designed and fabricated to support cell growth under static magnetic fields (SMFs). Using polymerase chain reaction (PCR), the researchers determined the impact of SMFs on the regulation and expression of genes related to osteogenesis including runt-related transcription factor 2 (Runx2), osteonectin (ON) and bone morphogenetic proteins 2 and 4 (BMP-2 and BMP-4). More information: Zhiyu Yuan et al. Development of a 3D Collagen Model for the In Vitro Evaluation of Magnetic-assisted Osteogenesis, Scientific Reports (2018). DOI: 10.1038/s41598-018-33455-2 Jon Dobson. Remote control of cellular behaviour with magnetic nanoparticles, Nature Nanotechnology (2008). DOI: 10.1038/nnano.2008.39 Aurelie G. Andrianarivo et al. Growth on type I collagen promotes expression of the osteoblastic phenotype in human osteosarcoma MG-63 cells, Journal of Cellular Physiology (2005). DOI: 10.1002/jcp.1041530205 In the study, the authors used a novel, multifunctional biomimetic 3-D collagen model for use as an in vitro platform to study mechanisms of magnetic stimulation on osteogenesis. To produce a range of cell-laden models, the researchers introduced internal stimuli (iron oxide nanoparticles) and external (static magnetic fields, SMFs) stimuli in to the system. The biomimetic material was engineered via the fabrication of nano- and microstructures using plastic compression, according to a previously established protocol. In order to evaluate biological behaviors of osteoblasts, including their proliferation, differentiation, mineralization, gene expression and microstructure analysis, the scientists cultured the collagen model in a magnetic bioreactor for up to 42 days. © 2018 Science X Network Citation: Developing a 3-D collagen model to test magnetic-assisted osteogenesis in vitro (2018, November 12) retrieved 18 August 2019 from https://phys.org/news/2018-11-d-collagen-magnetic-assisted-osteogenesis-vitro.html a) comparing ALP production of MG-63 cell line when cultured within collagen scaffolds with or without the incorporation of IONPs, with exposure to SMFs (M) and without exposure to SMFs. b) Comparing cell mineralization by extracting and quantifying ARS staining from scaffolds treated with or without SMFs exposure. Cell-loaded collagen scaffolds were integrated with IONPs (100 µg/ml) results were collected across 1, 21 and 42 days of culture. c) ARS staining of collagen scaffold in the absence of SMFs and IONPs, d) with SMFs, e) with IONPs, and f) with SMFs and IONPs. Credit: Scientific Reports, doi: 10.1038/s41598-018-33455-2. Engineering teratoma-derived fibroblasts to enhance osteogenesis Thereafter, the scientists conducted studies to understand responses of cell-seeded collagen scaffolds to SMFs and IONPs at the molecular level. For this, the expression levels of Runx2, ON, BMP-2 and BMP-4 were quantified using real-time quantitative polymerase chain reaction (RT-qPCR). A 7-day treatment of SMFs alone did not have an effect on the expression of Runx2, whereas increased expression was found when SMFs were combined with IONPs, demonstrating the collagen matrix mediated Runx2 expression during osteogenesis. At day 7 the level of ON expression in the samples treated with IONPs, SMFs and both were higher than in the control within a short period of time. During the expression of BMP-2 and BMP-4, similar results were observed across 7-14 days. , Nature Nanotechnology Explore further In the study, cell proliferation of the osteoblast cell line MG-63 was assessed using the alamarBlue assay. At day 14, the researchers observed a significant difference between SMFs alone, IONPs alone and in their combination on cell proliferation. Histology techniques were employed to examine cellular responses within the collagen scaffolds and understand the role of SMFs and IONPs on cell proliferation. Visualization was followed by quantitative analysis of cell numbers, results indicated that incorporation of IONPs prolonged the effect of SMFs. Similarly, cell differentiation was observed with alkaline phosphatase (ALP) activities for collagen scaffolds, with or without the incorporation of IONPs. As before, when the effect of IONPs and SMFs were combined the ALP production was significantly stimulated compared to treatment with SMFs alone and IONPs alone. Cell mineralization was also observed thereafter and quantified in the cell-seeded collagen scaffold. After 42 days all samples were stained with ARS staining to indicate complete mineralization. In contrast, combining SMFs and IONPs were unable to promote mineralization. , Journal of Cellular Physiology a) comparison of MG-63 cell proliferation when cultured with/without the incorporation of IONPs with exposure of SMFs (M) and without the exposure of SMFs. Cell proliferation can be enhanced with SMFs by incorporating IONPs, indicating a stimulating effect, b) Comparing the cell numbers of the MG-63 cell lines from histology images with or without SMFs. The cellular responses of the MG-63 cell line cultured on PC collagen scaffold were also examined via histology for conditions c) without SMFs and without IONPs, d) with SMFs, e) with IONPs and e) combining SMFs and IONPs. Credit: Scientific Reports, doi: 10.1038/s41598-018-33455-2. Journal information: Scientific Reports The study mainly demonstrated osteogenesis as a complex process mediated by successive activation and expression of several key genes, including Runx2, ON, BMP-2 and BMP-4. Typically, Runx2 upregulates the expression of protein genes related to the bone matrix to promote bone formation in vitro and in vivo. Accordingly, the study showed that SMF exposure may induce the cell line to proliferate by modulating early expression of Runx2, to accelerate osteogenesis. When IONPs were incorporated under SMFs, the expression of osteonectin (ON) gene increased, linking collagen phases with bone mineral to initiate normal skeletal tissue mineralization. Similarly, both BMP-2 and BMP-4 were only increased in the study during combined cell culture with SMFs and IONPs. In this way, the authors developed and tested a biomimetic 3-D collagen model that could progressively mineralize to subsequently form a novel bone model in vitro. The model was incorporated with osteoblast cells and nanoparticles with the ability to respond to external magnetic stimulations. The biomimetic collagen model was engineered via plastic compression to integrate the MG-63 cell line and demonstrate reproducible and consistent results combined with SMFs and IONPs. The cell-matrix interactions successfully upregulated the expression of key genes related to osteogenesis. The authors intend to develop the 3-D model further to serve as a superior platform to investigate biological behaviors in vitro with potential applications in tissue engineering and regenerative medicine. 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. a) Microstructure of cell loaded collagen scaffolds examined under TEM. Cells are surrounded by the collagen matrix. The collagen fibrils showed no preferred direction around the cells under control conditions, b) IONPs can be identified in the collagen matrix and c) close to the cell membranes. After 14 days a new matrix was synthesized by the cells, d) without SMFs and e) with SMFs. Both conditions led to new matrix synthesis after 14 days, without a significant difference. Credit: Scientific Reports, doi: 10.1038/s41598-018-33455-2. Gene expression for a) Runx2, b) osteonectin (ON), c) BMP-2 and d) BMP-4 normalized with the control GAPDH after 7 and 14 days of cell culture. Credit: Scientific Reports, doi: 10.1038/s41598-018-33455-2.last_img read more

On an Arctic trip

first_imgThis spectacular photo is a part of an exhibit called ‘Accessible Arctic’. The show was assembled and curated by the Canadian Museum of Nature.and Canadian Geographic.  Together, they have formed a dynamic partnership to showcase Canada’s amazing natural history. The Accessible Arctic brings the beauty of the North closer to us as it speaks of its past, present and future. These quintessential images of nature and life in the arctic also remind us of the vast treasure that we hold in trust for future generations. The exhibition is being showcased in India, the timing of this exhibit marks Canada taking over the chair of the Arctic Council and India’s newly granted observer status at the Arctic Council.last_img

We hit 2014 and how

first_imgOften said that your experience at the dawn of New Year’s is quite the script for the rest of the year ahead. Be it greatness of the food, the groove of the awe-inspiring music, or the beauty of the location where you are. The patrons at Escape’s Countdown Festival made sure that Delhiites take good time into 2014. The festival ringed in the New Year with the Ska Vengers performance at the Skinner stage while breathtaking fireworks lit the sky up. The Vibe stage on the other hand pumped up the trance rhythm as the clock struck 12. Also Read – ‘Playing Jojo was emotionally exhausting’An offshoot at Manesar – one of the coolest destination music festivals of the country – Escape-The Countdown Festival was the perfect year ender to unwind, the festival had 3 stages – Skinner, Vibe and the Boiler Room experience which featured spectacular music, along with art exhibitions, international cuisine alongside activities such as nature walks, mountain biking and rejuvenating spa treatments.The countdown festival showcased some of the finest musical performances from across the globe. The line-up at the festival had names like Antariksh, Big Bang Blues, Rusty Nails, The Ska Vengers, Aditi-Veena, Prateek Kuhad Collective, Jassb’stards, Jagramogara, Ectogasmics, Tadayan, Vaeya, Vipers vs K.T, Buffapirate, Frame / Frame, Shantam, Kumbhkaran, Blueorb, Curtain Blue, Guy called Sid Sal, Tech Panda, Post Modern Pandit, Uncoded followed by a new year’s brunch. Also Read – Leslie doing new comedy special with NetflixSpeaking about the Escape- The Countdown Festival, festival director L Tochhawng, said, ‘Simply put, how I wanted to bring in the New Year? With great music, non-stop festivity starting the 30th, going till the 1st noon, immersed in various genres of music, great food and a picturesque venue. It was a good start with a new festival to ring in the New Year. The last few years have made one thing very clear, we love our music festivals, so why not bid goodbye to the year gone by and bring in the New Year with a Mini Music Festival.’last_img read more

Iraqi forces halt ISIS march to Baghdad

first_imgIraqi security forces have retaken most of the town of Jurf al-Sakhar near Baghdad from ISIS , the biggest gains in months of fighting for the strategic area, senior local officials said on Saturday. Full control of the town could allow Iraqi authorities to prevent the Sunni insurgents from edging closer to the capital and maintaining connections to their strongholds in western Anbar province as well as infiltrating the mainly Shia south. ‘We have managed to push out ISIS from the town of Jurf al-Sakhar and now we are raising the Iraqi flag over the government offices,’ provincial governor said. Some ISIS fighters had fled towards the city of Falluja while fighting still raged near a bridge linking Jurf al-Sakhar to Anbar.last_img

HC stays Suriender Kolis execution till 25 November

first_imgOn Tuesday, the Supreme Court, in the first open court hearing of the review petition of death sentence cases, had cleared the decks for Koli’s execution after it dismissed his plea seeking a review of the judgment.‘We are fully satisfied that this court has not committed any error that may persuade us to review the order,’ a bench of Chief Justice HL Dattu, Justice AR Dave and Justice SA Bobde had said. Koli’s lawyer, Ram Jethmalani, had argued that he was not given proper legal assistance to defend himself and that the entire evidence relied upon by the trial court in convicting and sentencing him to death showed that he was tortured by police to confess the crime. The autopsy report showed that the murder of 14 children was committed with the precision of a medical expert with the alleged objective of trading in organs, he argued. Also Read – Need to understand why law graduate’s natural choice is not legal profession: CJIJethmalani had said that in none of the 14 cases of killing was the torso of the dead recovered, pointing to the possible dimension of organ trade in the case. On 24 July, the apex court had rejected Koli’s plea seeking the recall of its 15 February, 2011 order upholding his death sentence in one of the 16 cases of rape and killing being faced by him. President Pranab Mukherjee had in July also rejected Koli’s mercy plea. He visited the Donation and Transplantation Institute Foundation, Barcelona, one of the leading centres of the world for research in organ transplantation housed in University of Barcelona University.The health ministry said the Indian organ and tissue donation and transplantation scenario is in for major development with the government committed to make National Organ and Tissue Transplant Organisation a world class institution. Regional centres will also be commissioned in six cities subsequently.last_img read more

Of folklore and myths

first_imgArt for Concern presents its annual show of traditional and folk art in an endeavour to help preserve and protect India’s artistic heritage. They bring the works of master craftsmen from across India. The proceeds from the sale of these artworks will go toward the grassroots programmes supported by Concern India Foundation. The show will be held on January 15 and 16 January at Balassi Institute, Hungarian Information and Cultural Centre, Janpath in the Capital. India is a land of fascinating folklores and magical myths which are represented in myriad traditional and folk art forms. Every part of the country has a special way of showcasing these stories in colourful forms, which are unfortunately running the risk of dying out because of inadequate exposure.       Also Read – ‘Playing Jojo was emotionally exhausting’Art for Concern’s Traditional and Folk Art Show organised by Secure Giving is an attempt to showcase and preserve these indigenous art forms. Organised in aid of Concern India Foundation, the artworks at the Traditional and Folk Art exhibition are also available for sale. Being held in the capital for the very first time, the exhibition will showcase miniature art in various styles- Madhubani from Bihar, Mata ki Pachedi from Gujarat, Phad and Pichwai from Rajasthan, Gond from Madhya Pradesh, Kalamkari from Andhra Pradesh, Bronzes from Kumbakonam and Kalighat paintings from Kolkata. The Traditional and Folk Art Show is an attempt to give a window of exposure to the dying folk. According to Art for Concern’s Anjana Khanna, “The Traditional Art Show aims to promote traditional artists who have been practicing these art forms for years but are not getting enough exposure and recognition for their exceptional work.” Also Read – Leslie doing new comedy special with NetflixThe proceeds from the exhibition will go towards Concern India Foundation, a registered, non-profit charitable trust working towards ‘Helping People Help Themselves’ by making the disadvantaged self-reliant and enabling them to lead a life of dignity. Set up in 1991, Concern India Foundation works in the area of education, health and community development supporting over 270 programmes across the country.When: January 15-16 Where: Balassi Institute, Hungarian Information & Cultural Centre, 1-A, Janpath,last_img read more

New home for jumbos at Zoo to be ready in a month

first_imgKolkata: The elephant enclosure inside the Alipore Zoo that has been witnessing a facelift for the last few months will be ready in a month’s time. The new home for the pachyderms will be spanning over 3.7 acres, thrice the size of the old enclosure. The widening of the space became imperative after the Central Zoo Authority prodded the zoo authorities for increasing the space for free movement of the jumbos. “The enclosures for animals like leopards, hyena, and jackal needed to be shifted to another place to broaden the area of the elephants. Rani and Tithi — the two elephants are a major attraction in the zoo and particularly for the children. The waterbody at the front portion of the enclosure have been cleaned and beautified. Natural grass has been laid and shower has been fitted for the bathing of the elephants. The trees inside the new enclosure – Aswattha, Neem, Deodhar and Krishnachura – are surrounded by small brick walls so that the elephants can’t uproot them,” Zoo director Asis Kumar Samanta said adding that the animals love open space to roam around and enjoy the nature. It may be mentioned that in 2009, the Central Zoo Authority (CZA) banned elephants in zoos but had made an exception for Alipore zoo and had told officials that they could keep two elephants at the most by expanding the 3,000 sqm enclosure by at least three times. Also Read – Heavy rain hits traffic, flightsThe zoo authorities were again prodded by CZA in 2015-16 and there was apprehension that the Zoo will lose the jumbos because of not being able to meet the CZA guidelines for keeping the elephants. After a number of sleepless nights, the zoo authorities in consultation with experts chalked out a comprehensive plan for widening of the elephant enclosure. The elephants are presently kept in a shed in an enclosure out of public view while work is going on. “In the morning , their keeper popularly known as ‘mahoot’ takes them to the open space and allow them to roam around freely. They are extremely happy and we find it very difficult to take them back to the shed,” a senior zoo official said. The old elephant enclosure – with a moat, a shed and trees – was inaugurated in 1999 by the then chief minister Jyoti Basu. Before that, elephants used to remain chained in an enclosure one-tenth the size of the current one.last_img read more

Dont take unilateral actions along SinoIndia border PLA

first_imgChina’s military on Thursday asked the Indian Army not to take any “unilateral actions” affecting the stability of the border areas, days after the Indian side removed a Chinese-built hut in the Ladakh sector.“The recent actions by the Indian Army in the relevant area was not consistent with the relevant agreement and spirit of the consensus of the two sides,” China’s Defence Ministry spokesman Wu Qian said, commenting for the first time on the recent incident at Ladakh’s Burtse area in which the Indian army removed the hut along with surveillance cameras. Also Read – Nine hurt in accident at fireworks show in French resort“Jointly maintaining peace and tranquility of the India-China border is an important consensus reached between the leaderships of the two countries and also a solemn commitment and promise made by the two governments and militaries,” Wu, who took over as new spokesman of the People’s Liberation Army (PLA), said replying a question.“We ask the Indian army to earnestly implement the important consensus reached by the two governments and refrain from taking any unilateral actions which will effect the situation in the border areas and work together with the Chinese military to jointly maintain peace and stability in China-India border areas,” he said.last_img read more

State yet to receive Centres direction on nodetention policy

first_imgKolkata: State Education minister Partha Chatterjee on Friday said no written intimidation from the Centre has reached the state with regard to detention or no detention issue.”We have communicated our views in this regard to the Union Ministry of Human Resource. But how can we proceed further if there has been no specific directions from the centre?” Chatterjee said on the sidelines of a programme organised by Paschim Banga Samagra Siksha Mission at Mahajati Also Read – Rain batters Kolkata, cripples normal lifeSadan on Friday. A senior official of the Education department said there have been discussions in this regard and the Centre wants to introduce detention in class V and VIII but no circular on this issue from the Centre has been received by the state as yet. It is learnt that the Education department wants the pass-fail system to be introduced from Class V and has already intimidated the Centre about this. Educationists in the state believe the standard of school education has declined since the introduction of the ‘no-detention’ system in 2009. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedThe “no detention” policy, mandated by the Centre’s Right to Education Act, was introduced in 2009 to ensure children till 14 years of age did not quit studies over fear of failure. In the present system, students till Class VIII are awarded grades and not marks and are promoted even if they are not ready for the next class that has ultimately resulted in difficulty while coping with the syllabi of classes IX and X. Educationists in the state believe the standard of school education has declined since the introduction of the ‘no-detention’ system in 2009.last_img read more

100 schools identified for Sukanya project

first_imgKolkata: The Kolkata Police is targeting 100 schools in the city for Sukanya project, which is an initiative to train girls in martial art forms such as taekwondo, judo, kick-boxing and aikido. The training will start from March. Last year, 56 schools in the city were roped in the project.”The Sukanya project covers those schools that come under Kanyashree scheme. Chief Minister Mamata Banerjee in August 2018 had removed the family income cap for the beneficiaries of Kanyashree scheme thus widening the reach of the plan. So we are eyeing at least 100 schools this year, which is nearly double in comparison to last year,” said Satyajit Bandyopadhyay, officer on special duty (OSD) of Kolkata Police’s community policing wing on the sidelines of Community Policing Annual Sports at Alipore Bodyguard Lines on Monday. Shashi Panja, the minister of state for Women & Child Development and Social Welfare, was the chief guest at the programme. Also Read – Bose & Gandhi: More similar than apart, says Sugata BoseAccording to Bandyopadhyay, the challenge is to have professional and quality trainers for the scheme to ensure that the true purpose of the training is served.The Kolkata Police had introduced the project in February 2014 in collaboration with state Women and Child Development and Social Welfare department. The police had witnessed success and were able to provide an international platform to a number of girls. The Sukanya girls had won five golds, two silvers and two bronze medals at the in Kick Boxing World Cup in Russia in September 2016. The training had started with girls of Classes VIII, IX and XI and later it was extended to first-year girl students in colleges. The training session is held in consultation with the respective schools and colleges so that there is no problem with the academic activities of the beneficiaries. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataThe training session is for four months but there is no restriction on those who want to continue with it. Interestingly, a section of trainees, even took up kickboxing as a career option and they are still continuing with their training. The project trains girls in Taekwondo, Judo, Kick Boxing and Aikido. The Bidhannagar Commissionerate, Howrah Commissionerate and Barrackpore Commissionerate had also rolled out the Sukanya scheme in their respective areas from the end of 2017.last_img read more

Phase I polls pass peacefully in Bengal

first_imgKOLKATA: The first phase of elections in Bengal passed peacefully in Alipurduar and Cooch Behar on Thursday, with above 80 percent voter turnout in both the Lok Sabha seats. However, there were a few stray incidents of clashes reported from the two constituencies.Bengal Chief Electoral Officer (CEO) Ariz Aftab, state ADG (Law and Order) Siddh Nath Gupta and Special Police Observer Vivek Dubey were of the opinion that the polls were peaceful and that prompt action was taken whenever a complaint was reported. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataThe police have arrested seven people from Cooch Behar and one from Alipurduar for trying to create disturbance during the voting process. Three FIRs have been filed for alleged vandalising of the vehicle of the All India Forward Bloc candidate at Mathabhanga in Cooch Behar, damaging an EVM at Dinhata and alleged violation of the Model Code of Conduct in Cooch Behar. During the day, a Left Front delegation led by senior CPI(M) leader Rabin Deb met the CEO and demanded a repoll in 170 polling booths, while BJP candidate from Cooch Behar Nisith Pramanik sat on a dharna in front of the DM’s office, demanding repoll in all 837 booths where there was no deployment of Central Forces. Also Read – Lightning kills 8, injures 16 in stateMeanwhile, Trinamool Congress Cooch Behar district president Rabindra Nath Ghosh alleged that BSF jawans had entered a booth which they are not entitled to as per the Commission’s rule. The Election Commission has sought a report from the IG, BSF regarding the complaint. Some EVMs were reported going defunct at Dinhata, whereas polling had to be called off at Sitalkuchi due to isolated skirmishes. The matter would be taken up during the scrutiny on Friday. The vehicle of Forward Bloc candidate Govinda Roy was vandalised at Mathabhanga and a case has been started against five accused persons regarding the incident.last_img read more

Discussing the role of food bloggers

first_img‘Top Food Bloggers Awards’ recently held a panel discussion on ‘Emerging culinary trends influencing the way we eat, cook and communicate’, where Millennium Post was the print media partner.The occasion was graced by Dr Suborno Bose, Chief Mentor and CEO International Institute of Hotel Management (IIHM), Kolkata; Sanjukta Bose Director, International Institute of Hotel Management (IIHM), Kolkata; Birgit Holm, General Manager of Hyatt; Mizan Uddin, Hotel Manager, IBIS Kolkata Rajarhat; Suman Chakraborty, CEO, Roman Books; Paromita Ghosh, Co-Director, Candid Communication, along with senior bloggers like Indrajit Lahiri, Rukshana A Kapadia, Poorna Banerjee and Luna Chatterjee. Also Read – Add new books to your shelfThe discussion focused on our food industry which is evolving at an incredible speed, and how growth in technology has a notable impact on what people eat. With the improved standards of living, many young professionals have begun to experiment in their eating habits. While locals still embrace the age-old, traditional recipes, there are people who are interested to explore different cuisines. If an individual wants to experience the culture, try new recipes, or simply explore tempting bites from the neighbourhood, creative food bloggers shall give right idea about the best places to visit. Also Read – Over 2 hours screen time daily will make your kids impulsivePresent at the occassion, Sanjukta Bose, Director, IIHM, Kolkata, said, “Today’s youth are more into social media. We at IIHM, encourage students to follow food bloggers of the city. The food bloggers through their restaurant reviews play an important role in the promotion of food industry and influence its audience positively.” Talking about the rise of blogging on social media, Birgit Holm, General Manager of Hyatt Regency, Kolkata said, “Blogging is getting stronger day by day. The restaurants and food brands In Eastern India can reach the youth nowadays through our bloggers”. Suman Chakraborty, CEO, Roman Books, said, “It’s my pleasure to be part of this panel discussion. I feel that rise in the interest of blogging and social media has a severe impact on the downfall of our publishing industry and food magazines.” Indrajit Lahiri, Owner of the Blog Moha Mushkil said, “I feel the future of food blogging is brilliant. Social media helps a blogger to achieve popularity whereas blogging helps a blogger to achieve immortality. A blogger should be well read and informed.” Talking about her experience as a food blogger, Luna Chatterjee, Owner of the Blog Mad Food Lover said, “As a blogger, I try to reach as many audiences as possible. The food industry has grown immensely in the last few years because the people of this city love to eat, experiment and explore.” The discussions highlighted different emerging trends which influence everyone’s eating and cooking lifestyle. Also, there were various points raised during the discussion including the growing adaption of latest mobile application for the fastest food ordering, inclination towards organic and healthy foods, acceptance of foreign oriental cuisines, increasing demand in fusion foods which is the growing popularity of the Molecular Gastronomy, to name a few. The food-ful session concluded with top leaders of food industry, putting forward their prespective about the food industry, idea of change and required improvement in the eating habits and lifestyle.last_img read more

Video to promote Gaur Purnima festival

first_imgKolkata: The state Tourism department has for the first time partnered with International Society for Krishna Consciousness (ISKCON) and made a video to highlight the Gaur Purnima festival at Mayapur, its global headquarters.The five-minute video on Gaur Purnima, to observe the birth of Sri Chaitanya, has been shown in all the festivals where the state Tourism department participates, said a senior official of the department. His Divine Grace AC Bhaktivedanta Swami Prabhupad, founder Acharya of ISKCON and the first Indian saint who spread Gaudiya Vaishnava philosophy successfully in the West in 1960. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataChief Minister Mamata Banerjee during her visit to the ISKCON in Mayapur had given a go ahead to set up a world centre of religious tourism. Currently, ISKCON is constructing a magnificent temple — Temple of Vedic Planetarium (TOVP) which is expected to be open by 2022 and it is going to put Mayapur in the spotlight of global Tourism industry. With the support of the WB Government ISKCON has also planned to build Sri Chaitanya Cultural World Heritage Centre (SCCWHC) spread over 750 acres of land in Mayapur. Also Read – Lightning kills 8, injures 16 in stateAnnually more than 65 lakh devotees, pilgrims visit Mayapur. Currently, home to devotees from almost 70 countries , who study and practice Krishna Consciousness, Mayapur is set to grow in near future. In the last 50 years, ISKCON has developed the entire of NabadwipMandala, which comprises 9 islands where Sri Chaitanya Maha Prabhuhad performed his divine pastimes(leela). The five-minute video is currently played on many social media platforms and exhibitions. It is shot inside ISKCON Mayapur campus during Gaur Purnimafestival , which is the biggest festival of Mayapur. It showcases how beautifully devotees from all over the globe irrespective of caste, colour, colour, celebrate the festival with fervour from MahaAbishekof the deities to making garlands, performing ecstatic Kirtans, following the Vedic traditions of chanting mantras, said Subroto Das, Media Spokesperson of ISKCON.last_img read more

CFB Insider Bruce Feldman gives the latest on Ohio States investigation of

first_imgThe Ohio State football program has been engulfed by the offseason scandal surrounding head coach Urban Meyer and whether he took appropriate action when he learned of a 2015 domestic violence incident involving former wide receivers coach Zach Smith and his wife Courtney.Today, Fox Sports College Football Insider Bruce Feldman stopped by The Herd to give the latest info on the investigation and Meyer’s future in Columbus. He says the investigation should wrap up by Sunday, and according to his sources close to the program and investigation, there is an increasing feeling that Meyer will keep his job.“There’s a lot of people who feel like there is an increasing chance that Urban Meyer is going to retain his job.”@BruceFeldmanCFB with the latest on Ohio State’s investigation into Meyer pic.twitter.com/fjkzeq2rfl— Herd w/Colin Cowherd (@TheHerd) August 16, 2018last_img read more

Need to Privately Instant Message Your Entire Team at a Conference Try

first_imgJune 11, 2014 Hear from business owners and CEOs who went through a crippling business problem and came out the other side bigger and stronger. Problem Solvers with Jason Feifer 2 min readcenter_img Listen Now You know the drill. Your team descends on an important business conference. Swapping intel with each other in real-time is mission critical. Constantly coordinating with everyone at the same time and all in one place is a must. Email and texting are too slow and cumbersome. They won’t cut it.There has to be a better way to simultaneously keep in touch with everyone from your smartphone. Luckily there is.In this video, Young Entrepreneur Council founder Scott Gerber reveals his favorite solution to this common problem.It’s called GroupMe and it’s the free instant messaging tool he relies on to seamlessly, privately communicate with everyone on his team when they’re attending large, crowded events, like the recent SXSW festival in Austin, Texas. He says he used the slick mobile app to have productive, structured conversations with some 50 people simultaneously at the popular event.Until we can read each other’s minds from across the conference floor, helpful group IM apps like GroupMe will have to do. Android device users can download GroupMe from the Google Play Store and iOS device users from the Apple App Store.  Related:Need to Rent an Office On the Fly? Try This App, the Airbnb of Work SpacesTry This Killer Tool for Driving Traffic to Your WebsiteGoogle Hangout: The Best Apps and Tech Tools to Supercharge Your Small Businesslast_img read more

Meet the Wearable That Could Save Your Life If Youre Being Attacked

first_img Listen Now 5 min read How Success Happens February 23, 2015center_img Hear from Polar Explorers, ultra marathoners, authors, artists and a range of other unique personalities to better understand the traits that make excellence possible. Sometimes the mind wanders to dark places when you’re in a deeply isolated area where no one would hear you if you screamed for help. Rachel Emanuele’s mind did just that, turning over hair-raising worst-case scenarios while she jogged solo along a rugged stretch of remote mountainous terrain near her Arizona home, as she often does.What if the 28-year-old expectant mom were the victim of a violent attack? God forbid something should happen to her on one of her runs, how would she get help? Naturally, she expressed her anxiety over the possibility to her husband, Arthur “AJ” Emanuele, 30, also an avid runner. Rachel didn’t want to let the fear stop her from running her favorite paths, and neither did AJ. So, together, the couple launched a startup called First Sign and invented a device that they claim could save lives in the event of an assault.Related: Do You Text While Walking? This App Want to Save Your Life.“Even if you’re in a great part of town, there’s always some part of a run or a walk that’s a little sketchy if you’re alone,” AJ Emanuele says.  “That’s why we decided to design a wearable that would automatically trigger a loud alarm and call for help, hands-free, a violent attack or a sexual assault. That way the user doesn’t have to do anything but enjoy their run or other activity and they’re still protected.”The wearable the couple created and recently launched is called the First Sign Mace Wear Pod. Embedded with an accelerometer, the sensor-laden Bluetooth device works with the wearer’s smartphone to sound an alarm “at the first sign of violent movement, forces that are associated with an injury.”Related: Sounds Crazy, But These Bluetooth Sunglasses Let You Take Calls Through Your SkullIt also alerts a First Sign professional security agent, who can then contact local authorities in addition to emergency contacts you’ve entered into the Mace Wear Pod’s accompanying app. (The agent decides whether contacts need to be notified.)  The pod itself — a discreet, lightweight round plastic disc about the size of a watch face — is the evolution of an earlier “smart” hairclip device that AJ and Rachel successfully launched on Indiegogo just shy of a year ago and marketed to women. “There was such a great demand for it that we decided to expand our offering to everyone, male and female,” AJ said.Related: As Wearables Get Hot, These 6 Industries Are Poised to CapitalizeEmanuele said the device doesn’t just sound what could be a potentially life-saving alarm when you need it most. It also acts as an evidence collection tool after an alarm is triggered, which could potentially help identify and prosecute attackers. Following an alarm, the app automatically records your location, drawing from your phone’s GPS and network-based geolocation data. The user can also log notes about an incident, like a description of an attacker or other key pieces of identifying information, for example.  The pod and app cover users anywhere in the U.S. with a cell signal, given that the user’s smartphone has a data and voice plan. If you accidentally trigger an alarm, you can quickly reverse it in a couple of quick swipes.  The app that pairs with the pod is free and available for download from the Apple App Store and Google Play. The pod costs $60 and comes with a wristband that you can place it in and with a pendant/keychain that it slips into. The round-the-clock First Sign monitoring service is required and costs $60 per year, paid up front in a single payment or $5 per month.Related: 5 Lessons Entrepreneurs Can Learn From RunningFirst Sign also sells a belt clip ($15) and a headband ($10) so you can wear the pod however you want. “[The pod] can detect head impact if it’s worn on the head,” AJ said. “If you wear it on your wrist, it can automatically detect a block or a return strike, and it has a fall sensor that can detect a hard fall.”If you’re thinking of getting your own Mace Wear Pod for your next run (or walk alone to your car in a parking garage at night), you can buy one through First Sign’s online shop. Oh, and in case you’re wondering, there’s no actual mace in the pod itself, nor in any of its accessories.Related: Under Armour Rides High With Big-Ticket Fitness App Acquisitionslast_img read more

Twitters Head of Video Hints at Monetization Plans for All Creators

first_img Growing a business sometimes requires thinking outside the box. 2 min read Register Now » Free Webinar | Sept. 9: The Entrepreneur’s Playbook for Going Globalcenter_img ANAHEIM, Calif. — While Twitter continues to be plagued by lackluster growth and confusion about its ultimate identity — not to mention an ongoing leadership shuffle — the video category has been a critical focus for the social network this year.In an appearance today at the digital media summit VidCon, Twitter’s head of TV and video Baljeet Singh hinted that the company is exploring options that would allow more creators to monetize their content.Related: How Brands Are Paving the Way for Periscope Marketing Given that users frequently converge upon Twitter to discuss viral moments from cultural events such as the Super Bowl and award shows, Singh said that Twitter represents a unique, real-time opportunity for marketers. To this end, its most important video ad product is called Twitter Amplify, which enables broadcasters to tweet out viral clips (the NBA might tweet out a particularly thrilling play, for instance) preceded by a pre-roll ad. Twitter then splits this ad revenue with broadcasters.Singh hinted that the company is thinking about how to offer the same model to more than just broadcasters. “What we’re starting to do is think about how that program can be expanded to all types of creators,” Singh said. The program now counts 130 partners.Related: The Best Time to TweetHowever, for Twitter’s other video properties — Vine and Periscope — Singh is less interested in ads for the time being and more focused on content diversity and audience growth. “We’re not as tuned in to monetizing right out the gate because I think that’s a failure that a lot of initial startups make.”At Periscope, he said, new content formats are emerging every day. His personal favorite is a pianist who takes song requests around-the-clock via Periscope’s chat feature. And while Vine has served as a veritable launching pad for massive digital stars like Cameron Dallas and Brittany Furlan, Singh told Entrepreneur that Twitter has no plans to invest in original content in the same way that YouTube has said it will develop programming around its homespun stars.Singh joined Twitter in March 2014 from Google, where he previously led all of YouTube’s advertising initiatives.Related: 10 New Features YouTube Is Rolling Out for Creators (Hint: 3-D Is Getting More Immersive) July 23, 2015last_img read more

Airbus Files Patent That Shows Airplane Passengers Stacked On Top of Each

first_img Enroll Now for Free October 7, 2015 Free Workshop | August 28: Get Better Engagement and Build Trust With Customers Now This hands-on workshop will give you the tools to authentically connect with an increasingly skeptical online audience.center_img 2 min read “Ladies and gentlemen, if you’re seated above another passenger, please try your best not to kick them in the face during the flight.” This ridiculous in-flight announcement could become a reality if Airbus’s latest crazy seating arrangement concept comes to fruition.The French aerospace manufacturer recently filed a patent for an overhead seating design that would pack people even tighter into planes. The images in the patent show an uncanny split-level cabin concept, one that would have business class passengers stacked on top of one another, like the contents of “a mile-high submarine sandwich,” as TravelPulse so perfectly puts it.The arrangement would push passengers within inches of the ceiling of the plane, enabling yet more precious cargo to board economy flights, forcing us to smell each other even more up close and personal. At least the upper-tier seats could recline up to 180 degrees, though they look nowhere near as cozy and cool as Air Lair’s futuristic A380 seating dream.Related: The Way We Board Airplanes Is in Need of an Upgrade”In modern means of transport, in particular in aircraft, it is very important from an economic point of view to make optimum use of the available space in a passenger cabin,” Airbus wrote in the patent application. Because of course this is about making more money. It’s high time airlines cash in on the vertical space they waste.Could this be the future of flight? Is the company planning to one day build this awful seating arrangement? We contacted Airbus to find out, but have yet to hear back. Before you recoil imagining the many awkward possibilities, know that Airbus files around 600 or so patents a year, many of which never turn into squat. In the case of this Star Trek Enterprise-like “Flying Donuts” Airbus patent, it’s really too bad. We’d be down for that sweet, spacey ride.Related: Hate Flying? This Dreamy (or Dorky) Virtual Reality Helmet Could Help You Escape the Experience.last_img read more