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Misra S.,Indian Institute of Technology Kharagpur | Krishna P.V.,Vellore Institute of Technology | Kalaiselvan K.,CDAC | Saritha V.,Vellore Institute of Technology | Obaidat M.S.,Monmouth University
IEEE Transactions on Network and Service Management | Year: 2014

This paper presents a Learning Automata (LA)-based QoS (LAQ) framework capable of addressing some of the challenges and demands of various cloud applications. The proposed LAQ framework ensures that the computing resources are used in an efficient manner and are not over- or under-utilized by the consumer applications. Service provisioning can only be guaranteed by continuously monitoring the resource and quantifying various QoS metrics, so that services can be delivered in an on-demand basis with certain levels of guarantee. The proposed framework helps in ensuring guarantees with these metrics in order to provide QoS-enabled cloud services. The performance of the proposed system is evaluated with and without LA, and it is shown that the LA-based solution improves the performance of the system in terms of response time and speed up. © 2004-2012 IEEE.


News Article | November 16, 2016
Site: www.eurekalert.org

Unexpected results from a neutron scattering experiment at the Department of Energy's Oak Ridge National Laboratory could open a new pathway for the synthesis of novel materials and also help explain the formation of complex organic structures observed in interstellar space. In a paper published in the journal Angewandte Chemie International Edition, the multi-institutional team of researchers, led by Haiyan Zheng from the Center for High Pressure Science and Technology Advanced Research in Beijing, formerly of the Carnegie Institution of Washington, discuss their discovery of using high pressures--rather than high temperatures--to initiate chemical reactions. Their research will significantly improve scientists' understanding of complex carbon structures and may offer clues to the formation of amino acids from nonbiological processes. "This discovery was somewhat of a beautiful accident," said Ilia Ivanov, a research scientist at the ORNL's Center for Nanophase Materials Sciences, a Department of Energy Office of Science User Facility. Ivanov explains that it all began during a neutron diffraction experiment at ORNL's Spallation Neutron Source--also a DOE Office of Science User Facility. While performing a high-pressure polymerization experiment on the chemical compound acetonitrile (CH3CN) using the SNAP instrument, researchers detected the unexpected presence of ammonia. Ammonia is a colorless gas but has a very distinct odor that can be detected in even minute quantities. "If you put acetonitrile under high pressures, you'll bring molecules together and see it reacting with itself, and eventually, it forms either a solid yellowish polymer or, as we found out, a black, carbon-rich material," Ivanov said. Acetonitrile is one of a number of organic compounds that have been discovered in outer space and is thought to be implicated in the origins of simple amino acids, one of the basic molecules of life. In a cosmic event such as an asteroid collision, the pressures and temperatures generated can be very large, and in the presence of acetonitrile, could mimic the experiment the researchers conducted at SNAP. The formation of the yellowish polymer was the expected result of the SNAP experiment, said SNAP instrument scientist Chris Tulk, but a surprise was just ahead. "When the sample was depressurized and the pressure cell opened, ammonia was detected. It has a very distinct scent," Tulk said. "We thought, 'there shouldn't be ammonia in this sample right now.' So we started looking for what could have happened to first form, and then release, ammonia." The experimental researchers then collaborated with experts in advanced electron microscopy, materials science and computing to understand the mysterious results. Based on a combination of computer simulations and microscopy, they concluded that nitrogen had left the acetonitrile sample, resulting in an enriched carbon-based material. "The carbon material that was left was imaged using our best electron microscopes," Ivanov said. "It had onion-like layers--one shell of carbon sheet after another. So nitrogen went somewhere, but where did it go? It escaped in the form of ammonia gas." Because a temperature-based catalyst is usually required to convert a polymer into another material, this ability to cause a chemical reaction through pressure alone is unusual. "I wanted to continue doing these experiments to determine how much we could control the structure of a carbon material through pressure, not temperature," said Ivanov, comparing the experimental conditions with those found in household pressure cookers. "In most cases, pressure cookers still use high temperatures to help foods cook thoroughly. But with our experiments, we've been able to use a sort of pressure cooking at room temperature, albeit at much higher pressures." While a pressure cooker operates at 0.1 megapascals, these experiments used much higher pressures--up to 23,000 megapascals, which corresponds to the pressure found 650 kilometers below the Earth's surface at the boundary between its upper and lower mantle. "This paper is truly exciting for us," Tulk said. "Using this process with the addition of oxygen, possibly by the addition of carbon dioxide or water into the reactants, complex carbon structures similar to the kind we suspect throughout early formation of amino acids on Earth may be realized." The researchers note that cross-disciplinary expertise in neutron sciences and nanoscience, together with Energy Frontier Research in Extreme Environments (EFree) Center, made the research possible. EFree is a DOE Energy Frontier Research Center. "One without the other seemed like a one-sided mission. Two aspects of research, structure and functionality, were brought together through the synergetic work. Through joint efforts like this, we continue to help users drive the discovery of new materials and new functionalities," Ivanov said. Along with Zheng, Ivanov and Tulk, co-authors of the paper, "Polymerization of Acetonitrile via a Hydrogen Transfer Reaction from CH3 to CN under Extreme Conditions," include Kuo Li, Xiao Dong, Wenge Yang and Juan- Ho-kwang Mao from the Center for High Pressure Science and Technology Advanced Research in Beijing; Jamie J. Molaison, Mikhail Feygenson, Leonardo Basile and Carlos Idrobo from ORNL; Zhenxian Liu, George Cody and Malcolm Guthrie from the Carnegie Institution of Washington; and Guoying Gao from Cornell University. Complementary investigations were conducted at DOE's Argonne National Laboratory, the Center for High Pressure Science and Technology Advanced Research in Beijing, the Departamento de Física in Ecuador, Cornell University, Rice University and the European Spallation Source. DOE's Office of Science supported the research at Oak Ridge and EFree. Additional work was performed at the National Synchrotron Light Source, a DOE Office of Science User Facility at Brookhaven National Laboratory, at a beamline supported by NSF COMPRES and the National Nuclear Security Administration within DOE through the Carnegie/DOE Alliance Center (CDAC). UT-Battelle manages ORNL for the DOE's Office of Science. The Office of Science is the single largest supporter of basic research in the physical sciences in the United States, and is working to address some of the most pressing challenges of our time. For more information, please visit http://science.energy.gov/.


Named for Co-Founder and Interventional Cardiology Pioneer, Donald Baim, MD, to Honor his Passion, Insight, Innovation and Leadership; Change Reflects Desire for Greater Institutional Diversity, Expansion of Affiliations BOSTON, MA--(Marketwired - October 27, 2016) - The Harvard Clinical Research Institute (HCRI) announced today that it will change its name to the Baim Institute for Clinical Research (Baim Institute), as a reflection of its desire to further expand and diversify its faculty and institutional affiliations. Baim Institute will remain one of the world's most trusted not-for-profit academic research organizations. The new name pays tribute to Dr. Donald S. Baim, a visionary in the field of interventional cardiology, who was a founder of the organization in 1993 and a primary investigator and chief advisor through 2005. Dr. Baim died in 2009 at age 60. "Don dedicated his career to bringing innovative medical technologies forward, and cared deeply about the effective use of new therapeutics," said Laura Mauri, MD, MSc, Professor of Medicine, Harvard Medical School, Physician at the Brigham and Women's Hospital, and Chief Scientific Advisor of the Baim Institute. "He was an inspiration to generations of physician leaders for his ability to couple scientific thought with an unceasing commitment to improve patient care. He embodies the principles on which our Institute was founded and continues to grow." "Dr. Baim's impact is reflected in the Baim Institute's commitment to insight, innovation and leadership in the pursuit of evidence-based medicine that improves lives," said Don Cutlip, MD, Professor of Medicine, Harvard Medical School, Chief, Interventional Cardiology, Cardiac Catheterization Laboratory, Beth Israel Deaconess Medical Center, and Executive Director Clinical Investigations, Baim Institute. "We are fortunate to have had one of the most influential cardiology researchers as our co-founder and mentor." The organization was founded in 1993 as part of Beth Israel Hospital (currently the Beth Israel Deaconess Medical Center), and named the Cardiovascular Data Analysis Center (CDAC). Reflecting CDAC's expanded affiliations with other Harvard teaching hospitals, the organization took the name HCRI in 2000, becoming an independent not-for-profit. The network of institutions collaborating with HCRI grew over the last decade to include Boston University, Brigham and Women's Hospital, Lahey Hospital and Medical Center, and Massachusetts General Hospital. Now the Baim Institute is well-positioned to expand collaborations even further. "The Baim Institute provides a platform for us to build on the values that got us to where we are today," said Spencer Goldsmith, President, Baim Institute. "We will continue to expand our partnerships in ways that will deepen our commitment to advancing human health through creativity in clinical trial design and nimble operations." "The Baim Institute will continue to be a leading academic research organization, guided by our faculty and staff, continuing to serve the needs of research sponsors worldwide with the capabilities we have developed over the past 23 years," said Mr. Goldsmith. About the Baim Institute for Clinical Research The Baim Institute for Clinical Research is a leading, not-for-profit academic research organization that delivers insight, innovation and leadership in today's dynamic research environment. The Baim Institute collaborates with some of the world's most highly respected researchers from renowned institutions to help advance health and quality of life around the world. The Baim Institute has gained notoriety for the design and execution of clinical trials for first-in-class medical devices. Examples of such include trials for the first approved drug-eluting stent, and the first approved transcatheter mitral valve repair device. In addition, we recently sponsored and completed the DAPT study, a large, FDA-mandated study that enrolled over 25,000 subjects, evaluating the use of dual antiplatelet therapy after stent implantation. Since 1993, we have worked on over 450 clinical trials in North America, Europe and Asia. The Baim Institute is based in Boston. More information is at www.BaimInstitute.org.


MarketStudyReport.com adds “Global Wireless Stethoscope Sales Market Report 2016” new report to its research database. The report spread across 107 pages with table and figures in it. This report studies sales (consumption) of Wireless Stethoscope in Global market, especially in United States, China, Europe, Japan, focuses on top players in these regions/countries, with sales, price, revenue and market share for each player in these regions, covering Browse full table of contents and data tables at https://www.marketstudyreport.com/reports/global-wireless-stethoscope-sales-market-report-2016/  Market Segment by Regions, this report splits Global into several key Regions, with sales (consumption), revenue, market share and growth rate of Wireless Stethoscope in these regions, from 2011 to 2021 (forecast), like Split by product Types, with sales, revenue, price and gross margin, market share and growth rate of each type, can be divided into Split by applications, this report focuses on sales, market share and growth rate of Wireless Stethoscope in each application, can be divided into 7 Global Wireless Stethoscope Manufacturers Analysis 7.1 Kukupia/eKuore 7.1.1 Company Basic Information, Manufacturing Base and Competitors 7.1.2 Wireless Stethoscope Product Type, Application and Specification 7.1.2.1 Type I 7.1.2.2 Type II 7.1.3 Kukupia/eKuore Wireless Stethoscope Sales, Revenue, Price and Gross Margin (2011-2016) 7.1.4 Main Business/Business Overview 7.2 Freedom Scope 7.2.1 Company Basic Information, Manufacturing Base and Competitors 7.2.2 107 Product Type, Application and Specification 7.2.2.1 Type I 7.2.2.2 Type II 7.2.3 Freedom Scope Wireless Stethoscope Sales, Revenue, Price and Gross Margin (2011-2016) 7.2.4 Main Business/Business Overview 7.3 CDAC-Mohali 7.3.1 Company Basic Information, Manufacturing Base and Competitors 7.3.2 125 Product Type, Application and Specification 7.3.2.1 Type I 7.3.2.2 Type II 7.3.3 CDAC-Mohali Wireless Stethoscope Sales, Revenue, Price and Gross Margin (2011-2016) 7.3.4 Main Business/Business Overview 7.4 3M Health Care 7.4.1 Company Basic Information, Manufacturing Base and Competitors 7.4.2 Oct Product Type, Application and Specification 7.4.2.1 Type I 7.4.2.2 Type II 7.4.3 3M Health Care Wireless Stethoscope Sales, Revenue, Price and Gross Margin (2011-2016) 7.4.4 Main Business/Business Overview 7.5 Stethee 7.5.1 Company Basic Information, Manufacturing Base and Competitors 7.5.2 Product Type, Application and Specification 7.5.2.1 Type I 7.5.2.2 Type II 7.5.3 Stethee Wireless Stethoscope Sales, Revenue, Price and Gross Margin (2011-2016) 7.5.4 Main Business/Business Overview 7.6 Sedation Resource 7.6.1 Company Basic Information, Manufacturing Base and Competitors 7.6.2 Million USD Product Type, Application and Specification 7.6.2.1 Type I 7.6.2.2 Type II 7.6.3 Sedation Resource Wireless Stethoscope Sales, Revenue, Price and Gross Margin (2011-2016) 7.6.4 Main Business/Business Overview To receive personalized assistance write to us @ [email protected] with the report title in the subject line along with your questions or call us at +1 866-764-2150


Pirani Z.,MHSSCOE | Sasikumar M.,CDAC
Procedia Computer Science | Year: 2015

Learning Disabilities (LD) are usually hidden disabilities that affect many individuals who usually have average or above average intelligence. It is acquired before, during or soon after birth and affects an individual's ability to learn, all through his/her life. LD may also involve difficulties with organizational skills and social interaction. These difficulties can be alleviated by providing appropriate e-learning environment for them. We had proposed a framework, an Assistive Learning Environment (ALE) to enhance the learning experience of LD students in their academic life1, which is capable for recognizing what content has to delivered, variability associated with each LD learner and transformations associated with the content to deliver it to the LD learner. The system architecture is developed for our framework whose objective is to transform the given content in a way acceptable by the specific LD learner. This transformation is a complex process and it has to be done at various levels. Assistive E-Learning System, a prototype implementation of our framework has been completed and sample interactions are presented in order to assess the system's strengths and weakness. The system provides the user to indicate transformations and configurations not appropriate to the user. © 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license.


Ragha L.,RAIT | Sasikumar M.,CDAC
ICMLC 2010 - The 2nd International Conference on Machine Learning and Computing | Year: 2010

The Handwriting character recognition (HCR) for Indian Languages is an important problem where there is relatively little work has been done. In this paper, we investigate the use of moments features on Kannada Kagunita. Kannada characters are curved in nature with some kind of symmetric structure observed in the shape. This information can be best extracted as a feature if we extract moment features from the directional images. To recognize a Kagunita, we need to identify the vowel and the consonant present in the image. So we are finding 4 directional images using Gabor wavelets from the dynamically preprocessed original image. We analyze the Kagunita set and identify the regions with vowel information and consonant information and cut these portions from the preprocessed original image and form a set of cut images. We then extract moments features from them. These features are trained and tested for both vowel and Kagunita recognition on Multi Layer Perceptron with Back Propagation Neural Network. The recognition results for vowels is average 85% and consonants is 59% when tested on separate test data with moments features from directional images and cut images. © 2010 IEEE.


Patnaik T.,CDAC
Communications in Computer and Information Science | Year: 2011

The project 'Development of Robust document Analysis and Recognition for printed Indian Scripts' is a Department of Information Technology sponsored project to develop OCR for printed Indian scripts. A consortia led by IIT Delhi has completed the phase -I in OCR. The consortia members include 1 IIT Delhi 2 IISC Bangalore 3 ISI Kolkatta 4 IIIT Hyderabad 5 Central University, Hyderabad 6 Punjabi University, Patiala 7 MS University, Baroda 8 Utkal University, Bhubaneswar 9 CDAC Noida 10 CDAC Pune Different consortia members are responsible for different language OCRs like Punjabi University has contributed. Gurumukhi OCR, IIIT Hyderabad for Malalayam OCR etc. CDAC Noida has done the integration of OCRs with pre processings. © 2011 Springer-Verlag.


Chari K.S.,Semiconductor Integrated Circuits Layout Design Registry | Sharma M.,CDAC
2011 - International Conference on Signal Processing, Communication, Computing and Networking Technologies, ICSCCN-2011 | Year: 2011

ICs have become pervasive in practically all electronic applications and products. Continuous innovation and tailoring design techniques have spawned several IC designs catering to distinct uses. The paper highlights the matters of comparison of Integrated Circuit (IC) Layout Designs (LDs) using industry standard and custom Electronic Computer Aided Design (ECAD) tools and reports their performance viz -a- viz some key attributes for IC layout design comparison. The features of the tools for Cadence-Virtuoso; Mentor-Caliber; Synopsis-Hercules; Tanner-LEdit, and the two customized tools Softjin-NxCompare and ICLDDTv1 are described along with detailed IC layout comparison example performance runs with Softjin tools. An assessment on catching potential copying or infringements between given IC designs was checked through appropriate GDSII files of the design. From the analysis of the various features and results reported in this paper, it is concluded that the standard IC Design tools lack in their efficiency in terms of layout geometric comparisons and the customized tools demonstrate superior performances proving their immense value for robust comparison of any given Integrated Circuit Layout Design geometric patterns i.e. gds files. The later tools by virtue of their superior functional attributes and analysis abilities could cater to determination of distinctiveness of IC LD patterns as well as absence or extent of copying inherent between two IC LD files (a new LD filed and a gold reference LD file in data base) for Intellectual Property (IP) determinations. The later tools could also aid the IC Designer in the enhancing the innovation process and tagging the third party IPs mapped in to the design. © 2011 IEEE.


Gupta N.,CDAC | Pahuja H.,CDAC
MATEC Web of Conferences | Year: 2016

This paper is based on the observation of 8T single ended static random access memory (SRAM) and two techniques for reducing the sub threshold leakage current, power consumption are examined. In the first technique, effective supply voltage and ground node voltages are changed using a dynamic variable voltage level technique(VVL). In the second technique power supply is scaled down. This 8T SRAM cell uses one word line, two bitlinesand a transmission gate. Simulations and analytical results show that when the two techniques combine the new SRAM cell has correct read and write operation and also the cell contains 55.6% less leakage and the dynamic power is 98.8% less than the 8T single ended SRAM cell. Simulations are performed using cadence virtuoso tool at 45nm technology. © Owned by the authors, published by EDP Sciences, 2016.


Vathsala H.,CDAC | Koolagudi S.G.,National Institute of Technology Karnataka
Procedia Computer Science | Year: 2015

Practical application of data mining in scientific and engineering domains, when explored, pose many problems and provide interesting results. In this paper, we attempt to mine out association rules from 37 (1969-2005) years of Indian summer monsoon rainfall data and try its applicability in helping better prediction of Indian summer monsoon rainfall. We shortlist 36 variables as possible predictors of Indian summer monsoon rainfall based on previous literature and compare prediction using all 36 variables and prediction by selected attributes from derived association rules. Results show better performance in prediction of All India region, West central region and Peninsular region rainfall when attributes selection is employed as compared to all 36 variables used for prediction. © 2015 The Authors.

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