176 research outputs found
New discrimination and classification diagrams for igneous rocks and application to geothermal fields /\ua0tesis que para obtener el grado de Doctorado en Ingeniería (Energía), presenta Sanjeet Kumar Verma ; tutor principal de tesis Surendra Pal Verma
No full text. 272 páginas :\ua0ilustraciones. Doctorado en Ingeniería (Energía)\ua0Universidad Nacional Autónoma de México,\ua02013\ua0Programa de Posgrado en Ingenierí
Modeling of a neural network based controller for vibration suppression of a building structure
No full textA Short Biography of Dr Radhabinod Pal, 1886-1967
No full textDr. Radhabinod Pal is an Indian jurist remembered by modern historians for his dissentient judgment at the International Military Tribunal for the Far East convened in Tokyo from 1946 to 1948, in which he held all of the accused not guilty of each and all of the charges brought against them. This paper attempts to bring his biographical data from various sources together and put them in order for the use of Japanese researchers. The main part is a translation of the short biography of Dr. Pal from Bengali into Japanese. It was contained in a booklet handed out by the family of the deceased to the people who attended the funeral service (sraddha) observed in Calcutta in 1967. The text is fully annotated by the author with a body of factual information taken from, first, a series of interviews conducted in Calcutta in September 2008 with Mr. Prasanta Kumar Pal, Mr. Bimal Ray and Mr. Samar Dutt; second, archival material preserved in the National Archives of India, the National Library of Australia and the India Office Library; and third, periodicals and books published in India and Japan. It is unfortunate that grossly distorted stories about Dr. Pal’s life and opinions have been in circulation in Japan for no less than half a century since the Tokyo trial. It is the author’s hope that the present paper will help set them right and lay foundations for assessing Dr. Pal’s dissentient judgment in proper historical perspective
Bais: Brave Soldiers of Badaun
No full textThis is a translated excerpt from the Hindi book Badaun ke Ranbankure Rajput which is written by Surendra Mohan Mishra in 1993. Each chapter of the book gives a detailed analysis of each clan of brave Rajputs of Badaun. The present translated version is about Bais Rajputs who are counted among the thirty-six princely clans of Kshatriyas. Colonel Tad did not consider them important as there was no special mention of this caste in the texts "Raso" and "Kumar Pal Charitra". Bais people were living under the majestic kingdom of Kannauj by making their own small kingdoms. No details of this period are available. When the sun set for the great glory of the Gaharwar kings of Kannauj, then the descendants of Maharaja Jaichand took refuge in distant safe places. A group of Bais Rajputs migrating from Kannauj region also came to Badaun district of Rohilkhand. Five miles south of Bisauli, they built their own huge fort named Kot Shalivahan. It is said that once Bais was the fort of Rajputs. The name of this fort was Bishan and Bais Raja Gaj built it. Dunde Khan had only repaired it. The East India Company sold this Bisauli fort to Donald Saheb, an Englishman of Bilsi. These Bais Rajputs fought the fourth war in Nardauli. With them, the low flag Bardar had come in the army, he was given this village after winning it. Even today, these people are called flag bearers
A Scientometric Analysis And Assessment On Environmental Science Research Published By The Indian Academicians In Open Access Environment
No full textIndia has also faced numerous environmental challenges, including air and water pollution, deforestation, and climate change. This study aims to evaluate and analyses the research contribution on environmental science in India for the last five years. The required bibliographic information is obtained from an online Scopus database.
Material and Methods: This study is based on scientometric analysis of Indian environmental research, indexed in the Scopus database. The dataset is carefully examined in the Biblioshiny (using R-package bibliometrix) for analysis and VOSviewer for the visualization of the data. The exported data comprises of 3205 different documents published in open access environment under this study period was analysed using scientometric indicators and parameters.
Results: The analysis evident that there is a steady growth of literature during this period with average annual growth rate is 30.53% and average citation per documents is 1232. It is also found that total 10649 numbers of keywords are used by the authors. The total number of author found in this study is 13579, among which single authors belong to 111 and co-author per document belongs to 5.55 and the International co-authorship is 38.1%. The findings of the study show that ‘Sustainability (Switzerland)’ journal at the top contributor in field of environmental research and the trendiest topics were environmental pollution, Covid-19, Plastic and Micro-plastic. These research evaluations are benefited to the scientific community, researchers, funding agency, and policymakers to utilise these results to take decisions and directives on environmental science research across the globe
Advances in PGPR research/ edited by Harikesh Bahadur Singh, Banaras Hindu University, India, Birinchi Kumar Sarma, Banaras Hindu University, India, Chetan Keswani, Banaras Hindu University, India.
No full textIncludes bibliographical references and index.This book includes 25 contributions from vastly experienced, global experts in PGPR research in a comprehensive and influential manner, with the most recent facts and extended case studies. Also, the chapters address the current global issues in biopesticide research.Mechanisms of Growth Promotion by Members of the Rhizosphere Fungal Genus Trichoderma / Artemio Mendoza-Mendoza, Guillermo Nogueira-L opez, Fabiola Padilla Arizmendi, Natalia Cripps-Guazzone, Mar ia Fernanda Nieto-Jacobo, Robert Lawry, Diwakar Kandula, Fatima Berenice Salazar-Badillo, Silvia Salas-Mu noz, Jorge Armando Mauricio-Castillo, Robert Hill, Alison Stewart and Johanna Steyaert -- Physiological and Molecular Mechanisms of Bacterial Phytostimulation / Randy Ortiz-Castro, Jes us Salvador L opez-Bucio and Jos e L opez-Bucio -- Real-time PCR as a Tool towards Understanding Microbial Community Dynamics in Rhizosphere / Gautam Anand, Upma Singh, Abhineet Sain, Virendra S. Bisaria and Shilpi Sharma -- Biosafety Evaluation: A Necessary Process Ensuring the Equitable Beneficial Effects of PGPR / Juan Ignacio V ilchez, Richard Daniel Lally and Rafael Jorge Le on Morcillo -- ^Role of Plant Growth-Promoting Microorganisms in Sustainable Agriculture and Environmental Remediation / Rama Kant Dubey, Vishal Tripathi, Sheikh Adil Edrisi, Mansi Bakshi, Pradeep Kumar Dubey, Ajeet Singh, Jay Prakash Verma, Akanksha Singh, B.K. Sarma, Amitava Rakshit, D.P. Singh, H.B. Singh and P.C. Abhilash -- Pseudomonas Communities in Soil Agroecosystems / Betina Cecilia Agaras, Luis Gabriel Wall and Claudio Valverde -- Management of Soilborne Plant Pathogens with Beneficial Root-Colonizing Pseudomonas / Dmitri V. Mavrodi, Mingming Yang, Olga V. Mavrodi and Shanshan Wen -- Rhizosphere, Mycorrhizosphere and Hyphosphere as Unique Niches for Soil-Inhabiting Bacteria and Micromycetes / Elena Voronina and Irina Sidorova -- ^The Rhizospheres of Arid and Semi-arid Ecosystems are a Source of Microorganisms with Growth-Promoting Potential / Fatima Berenice Salazar-Badillo, Silvia Salas-Mu noz, Jorge Armando Mauricio-Castillo, Jorge S aenz-Mata, Artemio Mendoza-Mendoza, Maria Fernanda Nieto-Jacobo and Johanna Steyaert -- Rhizosphere Colonization by Plant-Beneficial Pseudomonas spp.: Thriving in a Heterogeneous and Challenging Environment / Antoine Zboralski, Adrien Biessy and Martin Filion -- Endophytomicrobiont: A Multifaceted Beneficial Interaction / Shatrupa Ray, Vivek Singh, Kartikay Bisen, Chetan Keswani, Surendra Singh and H.B. Singh -- Contribution of Plant Growth-Promoting Bacteria to the Maize Yield / Vivian Jaskiw Szilagyi Zecchin, Angela Cristina Ikeda and Atila Francisco M ogor -- The Potential of Mycorrhiza Helper Bacteria as PGPR / Marieta Marin Bruzos -- Methods for Evaluating Plant Growth-Promoting Rhizobacteria Traits / Antonio Castellano-Hinojosa and E.J. Bedmar -- ^The Rhizosphere Microbial Community and Methods of its Analysis / Mukesh Meena, Manish Kumar Dubey, Prashant Swapnil, Andleeb Zehra, Shalini Singh, Punam Kumari and R.S. Upadhyay -- Improving Crop Performance under Heat Stress using Thermotolerant Agriculturally Important Microorganisms / M.K. Chitara, Chetan Keswani, Kartikay Bisen, Vivek Singh, S.P. Singh, B.K. Sarma and H.B. Singh -- Phytoremediation and the Key Role of PGPR / Elisabetta Franchi and Gianniantonio Petruzzelli -- Role of Plant Growth-Promoting Rhizobacteria (PGPR) in Degradation of Xenobiotic Compounds and Allelochemicals / Deepika Goyal, Janmejay Pandey and Om Prakash -- Harnessing Bio-priming for Integrated Resource Management under Changing Climate / Deepranjan Sarkar, Sumita Pal, H.B. Singh, Ranjeet Singh Yadav and Amitava Rakshit -- ^Unravelling the Dual Applications of Trichoderma spp. as Biopesticide and Biofertilizer / Vivek Singh, Shatrupa Ray, Kartikay Bisen, Chetan Keswani, R.S. Upadhyay, B.K. Sarma and H.B. Singh -- 21 Genome Insights into Plant Growth-Promoting Rhizobacteria, an Important Component of Rhizosphere Microbiome / Vasvi Chaudhry, Niladri Chaudhry and Shrikant S. Mantri -- Plant Growth-Promoting Rhizobacteria (PGPR): Mechanism, Role in Crop Improvement and Sustainable Agriculture / Pallavi Mittal, Madhu Kamle, Shubhangini Sharma, Pooja Choudhary, Devendra Pratap Rao and Pradeep Kumar -- PGPR: A Good Step to Control Several of Plant Pathogens / Laith K. Tawfeeq Al-Ani -- Role of Trichoderma Secondary Metabolites in Plant Growth Promotion and Biological Control / Jyoti Singh, Rahul Singh Rajput, Kartikay Bisen, Surendra Singh and H.B. Singh -- ^PGPR-Mediated Defence Responses in Plants under Biotic and Abiotic Stresses / Gagan Kumar, Jai Singh Patel, Anupam Maharshi, Arpan Mukherjee, Chetan Keswani, S.P. Singh, H.B. Singh and B.K. Sarma.1 online resourc
Techniques for integrated energy-efficient power conversion
No full textSubmission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2023-12-01The student, Nilanjan Pal, accepted the attached license on 2021-11-18 at 14:12.The student, Nilanjan Pal, submitted this Dissertation for approval on 2021-11-18 at 14:35.This Dissertation was approved for publication on 2021-11-22 at 09:25.DSpace SAF Submission Ingestion Package generated from Vireo submission #17226 on 2022-04-29 at 16:09:47Made available in DSpace on 2022-04-29T21:58:24Z (GMT). No. of bitstreams: 3
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Reason: Author requested closed access (OA after 2yrs) in Vireo ETD systemAuthor requested closed access (OA after 2yrs) in Vireo ETD systemLimitedPower converters are a fundamental part of any system that seek to transfer electrical energy from one voltage domain to another. Traditionally, the power converter required bulky off-chip power switches to maintain acceptable efficiency which resulted in them occupying a significant portion of the total system volume. As these systems evolved to reduce in volume the corresponding power converters needed to adapt by improving both power density and efficiency. This eventually led to the integration of power switches along with the control circuitry on a single die. This integration presented unique opportunities and challenges from a power converter perspective which has resulted in a renewed focus on integrated power converters.
The various DC-DC power converter topologies can be broadly categorised into two classes: switched-inductor and switched-capacitor types. Generally, the switched-inductor type is more suitable for power levels of the order of a few watts or higher, while the switched-capacitor type is more suited to low-power applications of a few hundred milli-watts. Recently, a third category has emerged: hybrid converters which tries to combine the advantages of both the aforementioned categories. The relatively new type of power converter primarily aims to improve power efficiency by easing the trade-off between switching and conduction loss by enabling the use of better power switches.
In the first technique, a hybrid boost converter architecture for improving the efficiency of LED drivers used in mobile applications, is presented. By cascading a low-switching frequency time-interleaved series-parallel SC-stage with an inductive boost converter, we facilitate lower voltage-rated switches, thus significantly reducing the switching losses. Charge-sharing losses of the SC stage are minimized by soft-charging flying capacitors with the inductor of the boost stage. Fabricated in 180 nm BCD process, the prototype converter generates 30 V output voltage from a Lithium-ion (Li-ion) battery source. It can provide a load current in the range of 0 to 100 mA with an excellent peak power efficiency of 91.15% at 30 mA, which represents a 3% improvement over the state-of-the-art.
In the second technique, a novel current sensing architecture is explored. A new duty-cycle sensing technique with applications in current sensing for DC-DC power converters is presented. A time-based Delta-Sigma ADC with 1-bit delay-DAC accurately measures small changes in the duty-cycle of a PWM waveform. Fabricated in 65 nm general purpose CMOS process, the prototype senses changes in duty-cycle ranging from 4 m up to 20 m with 1% linearity, making it suitable for detecting small load current-dependent changes in the duty-cycle of a regulated DC-DC power converter.
The switching clock of a power converter is an important part of the whole system. It is essential to keep the frequency of this clock fixed under various operating conditions in order to prevent the generation of unwanted harmonics which might interfere with the proper functioning of the whole system. For most low-frequency integrated power converters, an on-chip relaxation oscillator is used. Even though this oscillator architecture is very power efficient, it has large variation in frequency over temperature. A method for improving the temperature stability of RC relaxation oscillators by precisely interpolating between resistors with opposing temperature coefficients is presented. By obviating the need for a large trimming network of switches and resistors, it achieves excellent frequency accuracy across PVT. Fabricated in 65 nm CMOS, the prototype 400 kHz oscillator achieves an inaccuracy of 16 ppm/degC (-40degC to 85degC), 2.5 ppm/mV voltage sensitivity, and 5.6 ppm Allan deviation in one second strides
In Vitro Antioxidant and Free Radical Scavenging Activity of Nardostachys jatamansi DC.
No full textAbstractIn this study, the antioxidative potential of a hydroalcoholic extract of Nardostachys jatamansi (NJE) rhizomes was evaluated by various antioxidant assays, including antioxidant capacity by the phosphomolybdenum method, total antioxidant activity in linoleic acid emulsion systems, 1,1-diphenyl-2-picrylhydrazyl (DPPH), superoxide, hydroxyl radicals, nitric oxide (NO) scavenging, metal chelating and reducing power activity. These various antioxidant activities were compared with standard antioxidants such as butylated hydroxytoluene, tocopherol, catechin, and L-ascorbic acid. Total phenolic and flavonoid content of NJE was also determined by a colorimetric method. The extract exhibited high reduction capability and powerful free radical scavenging, especially against DPPH and superoxide anions as well as a moderate effect on NO. Moreover, the peroxidation inhibiting activity of NJE was demonstrated in the linoleic acid emulsion system. The results obtained in the present study clearly established the antioxidative potency of NJE, which may account for some of the medical claims attributed to this plant
ANALYTICAL ELASTOHYDRODYNAMIC LUBRICANT FILM THICKNESS FOR BALL BEARINGS 6007, 6207, 6307 & 6407 USING HERTZ CONTACT THEORY
No full text<p>Elastohydrodynamic lubrication is the phenomenon that occurs when a lubricant is introduced between surfaces that are in rolling contact such as rolling bearing. Elastohydrodynamic lubrication (EHL) is an important branch of the lubrication theory, describing lubrication mechanisms in non conformal contacts widely found in many mechanical components such as various gears, rolling bearings, cams and followers, metal-rolling tools, traction drives, and continuous variable transmissions. In present work, the elastohydrodynamic (EHD) lubricant film thicknesses for bearings 6007, 6207, 6307 and 6407 are calculated by the formula based on Hertz’s contact theory. The developed formula along with inexpensive measuring instruments can be used for online condition monitoring of rolling element bearings.</p>
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