651 research outputs found
Hard metal-matrix composite coating via laser cladding on engineered surfaces
No full textLaser surfacing is an important and necessary technology that can be used to repair, restore, and enhance the surface properties of parts, making them more durable, resistant, and efficient. The use of tungsten disulfide (WS2) in laser cladding is still in the development and research stage, but the properties and characteristics of WS2 make it a good candidate for laser cladding applications in industries where tribological systems, cutting tools, and thermal management are important. In this chapter, laser cladding of WS2 is carried out using a fiber laser of 400 W power. It is observed that a hard surface coating of WS2 was cladded to the substrate surface. The surface of the cladded surface is characterized in several ways to understand its properties and quality. Some common methods of characterizing a laser-cladded surface include microstructure analysis, hardness, wear testing, and chemical analysis. The microstructure of the cladded surface is analyzed using optical microscopy and scanning electron microscopy (SEM), to understand the grain size, phase composition, and morphology of the cladded material. The hardness and wear resistance of the cladded surface are measured using Vickers hardness testing and tribometer testing to understand the mechanical properties of the cladded material. The chemical composition of the cladded surface is analyzed using techniques of energy-dispersive X-ray spectroscopy (EDS) to understand the composition of the cladded material.</p
Bibliographics for the 983 eprints in the live archives of E-LIS : trends and status report up to 7th July 2004, based on author-self-archiving metadata
No full textThe priority for ideas and philosophy related to "Network Theory" have been traced back and documented by Braun(2004),and credit goes to Karinthy(1929).The IT has empowered to realise it, as the most practical phenomena and it is no more a humour. The OAI (Open Archives Initiatives)and ACIS (Academic Contributor Information System)are progressive in the direction ,which may lead to realise the "Collective Genius" at global level. Focus of present study is on Author-Self-Archiving (A-S-A)Metadata of the 983 Eprints in the Live Archives of the E-LIS (EPrints of Library and Information Science),which were approved till 7th July 2004.The A-S-A Metadata was used for librametric analysis. Self-explanatory bibliographics are illustrated.The highlights include: Conference papers (34%); highest approval, June 2004 (28%); published archives (76%);not refereed (52%); not in public domain (60%); highest self-archiving-author (De Robbio, Antonella).The Nos. of EPrints having single JITA domain specifications were: Theoretical and general aspects of libraries and information(27); Information use and sociology of information(80);Users,literacy and reading(13);Libraries as physical collections(30);Publishing and legal issues(57);Management(13);Industry, profession and education(36);Information sources, supports, channels(113) ; Information treatment for information services, Information functions and techniques (101); Technical services libraries, archives and museums(25); Housing technologies(1); Information technology and library technology(92); and Inter-domainery (395) i.e. having specifications of two or more than two JITA classes
Tobacco use among adolescents in Udham Singh Nagar district, Uttaranchal, India, 2004 - a cross-sectional study.
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Laser Applications in Manufacturing
No full textThis book introduces the emerging areas of laser-based manufacturing such as additive manufacturing (AM) of metal matrix composites (MMCs), joining of hard-to-weld superalloys, damage-free machining of fiber-reinforced composites, surface properties enhancement using cladding techniques, and modeling and simulation of laser beam manufacturing techniques. Laser Applications in Manufacturing provides a quick guide for researchers and academicians to recent advancements in the development of powder-based MMCs manufactured using AM technology.This book:- Shows recent developments in functionally graded sheets or laminates and fabrication of fiber-reinforced composite using sheet lamination printing- Lists recent developments in the joining of dissimilar materials in diverse applications such as hybrid structures and lightweight components for increased performance and functionality- Includes many recent developments in machining carbon fiber, glass fiber, and natural fiber composite laminates for investigations of delamination and surface quality characteristics- Showcases different aspects of surface alloying of miniature components, hard and soft composite coating for various applicationsLaser Applications in Manufacturing is recommended for researchers working on fabrication of numerous new and novel materials. The book serves as a resource for scientists and engineers working in laser-based manufacturing techniques who want to learn about the most up-to-date research.<br/
Recent advancements in microbial diversity /
No full textIncludes bibliographical references and index.Biodiversity of microbial life: Indian Himalayan region / Khushboo Dasauni and Tapan Kumar Nailwal -- Microbial endophytes of plants: diversity, benefits, and their interaction with host / Anwesha Gohain, Chowlani Manpoong, Boppa Linggi, Ratul Saikia, Surajit De Mandal -- A spotlight on the recent advances in bacterial plant diseases and their footprint on crop production / Tushar Joshi, Priyanka Sharma, Tanuja Joshi, Satish Chandra Pandey, Veni Pande, Anupam Pandey, Diksha Joshi, Priyanka Maiti, Mahesha Nand, Subhash Chandra -- Bacterial diseases of banana; detection, characterization, and control management / Thangjam Premabati and Surajit De Mandal -- Toward an enhanced understanding of plant growth promoting microbes for sustainable agriculture / Diksha Sati, Satish Chandra Pandey, Veni Pandea. Shobha Upretia, Vinita Gouria, Tushar Joshi, Saurabh Gangola, Prasenjit Debbarma, Anupam Pandey, Mukesh Samanta -- Multifaceted beneficial effects of plant growth promoting bacteria and rhizobium on legume production in hill agriculture / Anupam Pandy, Priyanka H. Tripathi, Satish Chandra Pandey, Tushar Joshi -- Role of rhizospheric microbial diversity in plant growth promotion in maintaining the sustainable agrosystem at high altitude regions / Jyoti Rawat, Nirmal Yadav and Veena Pande -- Microbes adapted to cold and their use as biofertilizers for mountainous regions / Geeta Bhandari -- Actinobacteria: diversity and biotechnological applications / Anwesha Gohain, Chowlani Manpoong, Ratul Saikia, Surajit De Mandal -- Quorum sensing: the microbial linguistic / Vikas Kumar and Jyoti Rawat -- Exploration of microbial communities of Indian hot springs and their potential biotechnological appliations / Sneha Bhandari and Tapan Kumar Nailwal -- Microbial diversity and functional potential in wetland ecosystems / Surajit De Mandal, Folguni Laskar, Amrita Kumari Panda, Rojita Mishra -- Effect of climate change on microbial diversity and its functional attributes / Pankaj Kumar Jain, Sumi Das Purkayastha, Surajit De Mandal, Ajit Kumar Passari, Rasiravathanahalli Kaveriyappan Govindarajan -- Spatial variation of the microbial diversity in the mangrove dominated Sundarban Forest of India / Tapti Sengupta and Abhijit Mitra -- Microbe assisted plant stress management / Purva Dubey, Vinay Kumar, Karthika Ponnusamy, Rajendra Sonwani, Anup Kumar Singh, Deep Chandra Suyal, Ravindra Soni -- Insect gut microbiome and its applications / Sathya Narayanan Govindarajulu, Krishnapriya M. Varier, Dheepthi Jayamurali, Wuling Liu, Juan Chen, Nivedita Manoharan, Yanmei Li, Babu Gajendran -- Diversity and the antimicrobial activity of vaginal lactobacilli: current status and future prospective / Sumi Das Purkayastha, Mrinal K. Bhattacharya, Himanshu K. Prasad, Surajit De Mandal -- Gut microbiota and brain development: a review / Krishnapriya M. Varier, Arpita Karandikar, Wuling Liu, Juan Chen, Yaacov Ben-David, Xiangchun Shen, Arulvasu Chinnasamy, Babu Gajendran -- Role of microbial communities in traditionally fermented foods and beverages in North East India / Indu Sharma and Sagolsem Yaiphathoi -- Metagenomics: applications of functional and structural approaches and meta-omics / Lokesh Kumar Tripathi and Tapan Kumar Nailwal -- Metagenomics: a vital source of information for modeling interaction networks in bacterial communities / Jithin S. Sunny and Lilly M. Saleena -- Metagenomics based approach to reveal the secrets of unculturable microbial diversity from aquatic environment / Pooja Arya and Ravindra -- Metagenomic-based approach to a comprehensive understanding of cave microbial diversity / Apirak Wiseschart and Kusol Pootanakit.Elsevie
Self-Development and Social Transformations? The Vision and Practice of the Self-Study Mobilization of Swadhyay - By Ananta Kumar Giri
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Malignant transformation in a case of megalencephalic leukoencephalopathy with subcortical cysts: An extreme rarity in a rare disorder
No full textMegalencephalic leukoencephalopathy with subcortical cysts (MLC) is an autosomal recessive inherited disorder characterized by macrocephaly, progressive motor disability, seizures, mild cognitive decline, slow progression, and typical magnetic resonance imaging (MRI) findings. Age of onset of symptoms is described from birth to 25 years. Late onset presentation is very rare, only few cases have been reported worldwide. Most important clue for diagnosis is the characteristic MRI changes that include diffuse involvement of subcortical white matter mainly in frontoparietal region with relative sparing of central white matter along with subcortical cysts mostly in anterior temporal region. Cysts are usually benign and slowly progressive. Malignant transformation of cysts has not been reported as yet. We herein report a very unusual and probably the first case of MLC who presented to us in a unique manner with late onset and malignant transformation of cyst in left temporal region leading to rapid neurological decline. This case report highlights a possible life-threatening complication of a previously known slowly progressive disease warranting urgent neurosurgical intervention
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