Tech Mahindra, one of the three technology companies of the Mahindra Group, is poised to report higher revenues in the current fiscal and the next year on the back of a string of positive developments, according to brokerage IDFC Securities.In a note, the brokerage said Tech Mahindra’s growth in the coming years would spurt on “improved outlook” in the telecom and enterprise verticals, in addition to strong deal pipelines. IDFC Securities based its note after interacting with the top management of Tech Mahindra.”We expect revenue momentum to improve in FY17, led by deal closures in the telecom vertical and sustained momentum in the enterprise vertical. However, impact from waning challenges in the communication vertical would only ensue fully over FY18-19. We expect bottoming-out of expectations in FY17 and steady improvement in underlying fundamentals of the communication business to act key earnings growth drivers,” the brokerage said.Its revenues from enterprise business are likely to see sustained growth in the coming years, helped by revenues from Pininfarina S.p.A.. The company acquired the Italian brand in automotive and industrial design in December last year.”We expect the Enterprise vertical to sustain FY16 momentum further aided by inorganic contribution (Target, Pininfarina, BIOAgency). TechM’s organic growth should be in-line with the industry. The management expects the optimism in BFSI to continue (on low base and customer-specific opportunities),” the note added.New deal closuresThe brokerage said that Tech Mahindra has closed two out of five large deals in the past two quarters and lost two closely contested deals. “The management retained its commentary on the Communication vertical (deal pipeline improved ~20% yoy in Q1FY17). We expect deal wins to improve in the vertical, in line with peers’ performance,” IDFC Securities said.Tech Mahindra was confident of generating revenues in the range of #300-310 million every year from Lightbridge Communications Corporation (LCC), a global network engineering firm providing services to the telecommunications industry. The company acquired LCC in November 2014.Tech Mahindra shares were trading at Rs. 454.90 on Friday at around 2.30pm on the Bombay Stock Exchange (BSE). IDFC Securities put the 12-month target price for the firm as Rs.550.The 52-week high and low for Tech Mahindra shares are Rs. 581.95 and Rs. 407.50, respectively.
Kasturi and Sandy.PR HandoutActress Kasturi Shankar, who is rumoured to be entering the Bigg Boss Tamil 3 house as a wild-card entrant, has spoken about each contestant of the show. Of all the comments, her views on Sandy, one of the people’s favourite participant this season, has drawn the viewers’ attention.Talking about the strategy, she said, “Sandy is a blue-eyed boy of Vijay TV. The channel knows in and out of him. It is also aware of his weaknesses. But till today, we have not seen his shortcomings in the show. I feel the channel wants showcase only positive side of him,”Kasturi claims that even Kamal Haasan has become a fan of Sandy and displaying special affection towards him. She adds, “He conveys his message jokingly. He would have become a villain if he had said it without a smiling face,”She alleges that Sandy has a strategy in place for every week and starts influencing people on various issues that includes nomination process. “Those things are not being aired and only positive aspects are being projected of him,” she points out.Kasturi feels most of the contestants are not perfect and everybody has their own strategy except for Mugen and Tharshan. In the interview, the actress feels pity for Cheran’s situation in the house as the four-time National Award-winning filmmaker has gone through a lot of humiliation from the inmates.Meanwhile, the actress, who has been repeatedly approached by Vijay TV to be a contestant on the show, is yet to confirm whether she has decided to enter the house this season.On the other hand, Reshma has been eliminated from Bigg Boss Tamil 3 much to the surprise of the audience, who were predicting Sakshi Agarwal to be out of the show on Sunday (4 August). read more
NASAOrion GTA vertical drop test at NASA LaRC’s Impact and Splash Basin.NASA says it’s simulating a splashdown of its Orion spacecraft in Virginia, this time with crash test dummies, as it prepares to eventually send humans to Mars.A pendulum will swing a test capsule into a pool of water Thursday at NASA’s Langley facility in Hampton. Inside will be dummies in spacesuits that represent a 105-pound woman and a 220-pound man.The agency will evaluate the effects of landing at different velocities and in various conditions. For instance, one of its parachutes could fail as it returns from space or it could hit rough seas.The spacecraft sailed through its first unmanned test flight in 2014, splashing down in the Pacific Ocean. Another unmanned launch is scheduled for 2018. The agency hopes Orion will carry astronauts into space by 2023. Share read more
Copyright 2011 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: New energy storage device could recharge electric vehicles in minutes (2011, August 19) retrieved 18 August 2019 from https://phys.org/news/2011-08-energy-storage-device-recharge-electric.html The large surface areas of the SMCs’ electrodes enable rapid shuttling of large numbers of ions between electrodes, resulting in a fast recharge time. Image copyright: Jang, et al. ©2011 American Chemical Society Lithium-ion ultracapacitor could recharge power tools in minutes (PhysOrg.com) — It has all the appearances of a breakthrough in battery technology, except that it’s not a battery. Researchers at Nanotek Instruments, Inc., and its subsidiary Angstron Materials, Inc., in Dayton, Ohio, have developed a new paradigm for designing energy storage devices that is based on rapidly shuttling large numbers of lithium ions between electrodes with massive graphene surfaces. The energy storage device could prove extremely useful for electric vehicles, where it could reduce the recharge time from hours to less than a minute. Other applications could include renewable energy storage (for example, storing solar and wind energy) and smart grids. More information: Bor Z. Jang, et al. “Graphene Surface-Enabled Lithium-Ion Exchanging Cells: Next-Generation High-Power Energy Storage Devices.” Nano Letters. DOI:10.1021/nl2018492 Explore further 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. The researchers call the new devices “graphene surface-enabled lithium ion-exchanging cells,” or more simply, “surface-mediated cells” (SMCs). Although the devices currently use unoptimized materials and configurations, they can already outperform Li-ion batteries and supercapacitors. The new devices can deliver a power density of 100 kW/kgcell, which is 100 times higher than that of commercial Li-ion batteries and 10 times higher than that of supercapacitors. The higher the power density, the faster the rate of energy transfer (resulting in a faster recharge time). In addition, the new cells can store an energy density of 160 Wh/kgcell, which is comparable to commercial Li-ion batteries and 30 times higher than that of conventional supercapacitors. The greater the energy density, the more energy the device can store for the same volume (resulting in a longer driving range for electric vehicles).“Given the same device weight, the current SMC and Li-ion battery can provide an electric vehicle (EV) with a comparable driving range,” Bor Z. Jang, co-founder of Nanotek Instruments and Angstron Materials, told PhysOrg.com. “Our SMCs, just like the current Li-ion batteries, can be further improved in terms of energy density [and therefore range]. However, in principle, the SMC can be recharged in minutes (possibly less than one minute), as opposed to hours for Li-ion batteries used in current EVs.”Jang and his coauthors at Nanotek Instruments and Angstron Materials have published the study on the next-generation energy storage devices in a recent issue of Nano Letters. Both companies specialize in nanomaterial commercialization, with Angstron being the world’s largest producer of nano graphene platelets (NGPs).As the researchers explain in their study, batteries and supercapacitors each have their respective strengths and weaknesses when it comes to energy storage. While Li-ion batteries provide a much higher energy density (120-150 Wh/kgcell) than supercapacitors (5 Wh/kgcell), the batteries deliver a much lower power density (1 kW/kgcell compared to 10 kW/kgcell). Many research groups have made efforts to increase the power density of Li-ion batteries and increase the energy density of supercapacitors, but both areas still have significant challenges. By providing a fundamentally new framework for energy storage devices, the SMCs could enable researchers to bypass these challenges. Compared with supercapacitors and batteries, SMCs (with three different electrode thicknesses shown) offer both a high power density and high energy density. Image copyright: Jang, et al. ©2011 American Chemical Society “The development of this new class of energy storage devices bridges the performance gap between a Li-ion battery and a supercapacitor,” Jang said. “More significantly, this fundamentally new framework for constructing energy storage devices could enable researchers to achieve both the high energy density and high power density without having to sacrifice one to achieve the other.” The key to the SMCs’ performance is a cathode and anode that contain very large graphene surfaces. When fabricating the cell, the researchers put lithium metal (in the form of particles or foil) at the anode. During the first discharge cycle, the lithium is ionized, resulting in a much larger number of lithium ions than in Li-ion batteries. As the battery is used, the ions migrate through a liquid electrolyte to the cathode, where the ions enter the pores and reach the large graphene surface inside the cathode. During recharging, a massive flux of lithium ions quickly migrates from the cathode to the anode. The electrodes’ large surface areas enable the rapid shuttling of large numbers of ions between electrodes, resulting in their high power and energy densities.As the researchers explain, the exchange of lithium ions between the porous electrodes’ surfaces (and not in the bulk of the electrode, as in batteries) completely removes the need for the time-consuming process of intercalation. In this process, the lithium ions must be inserted inside the electrodes, which dominates the charging time of batteries. Although in this study the researchers prepared different types of graphene (oxidized, and reduced single-layer and multilayer) from a variety of different types of graphite, further analysis of the materials and configuration is needed for optimizing the device. For one thing, the researchers plan to further investigate the cells’ cycling lifetime. So far, they found that the devices could retain 95% capacity after 1,000 cycles, and even after 2,000 cycles showed no evidence of dendrite formation. The researchers also plan to investigate the relative roles of different lithium storage mechanisms on the device’s performance.“We do not anticipate any major hurdle to commercialization of the SMC technology,” Jang said. “Although graphene is currently sold at a premium price, Angstron Materials, Inc., is actively engaged in scaling up the production capacity of graphene. The production costs of graphene are expected to be dramatically reduced within the next 1-3 years.” read more