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105 kirjaa tekijältä Ajay Kumar

Herbal Formulations as Antifungal Agents

Herbal Formulations as Antifungal Agents

Avinash Singh; Ajay Kumar

LAP Lambert Academic Publishing
2020
pokkari
In last few years, the interests have been generated in the development of novel herbal antifungal agents from plant products such as, extracts and essential oils to control fungal infections or diseases. So, This book have focused on the antidermatotic effects of some specific essential oils with different formulations against two very common dermatophytic infections: Tinea capitis and Tinea corporis
Computational Vaccinology

Computational Vaccinology

Fariya Khan; Ajay Kumar

LAP Lambert Academic Publishing
2020
pokkari
Due to the lack of an approved vaccine against diarrhea, requirement of an efficient vaccine is urgently needed to fight against it. Enterotoxigenic E.coli is one of the major cause of bacterial diarrhea worldwide targeting children mainly under the age of 5 and despite of the severeness, till date there are no licensed vaccine and This book aims at developing a T cell epitope based vaccine that will be precise in triggering immune response efficiently. The most promiscuous T cell epitopes binding to the MHC(Major Histocompatibilty Complex) I and II will be identified through various immunoinformatics servers. Different computational vaccinology approaches were employed to assess several parameters including antigenicity, allergenicity, stability, localization, molecular weight and toxicity of the predicted epitopes required for good vaccine candidate to elicit immune response against diarrhea. There is no doubt that the outcome of this analysis performed in this book will led tothe potential vaccine that will fight against a global killer diarrhea and will save the society.
Bronchoscopy in ICU: A Practical Guide

Bronchoscopy in ICU: A Practical Guide

Manoj K Goel; Ajay Kumar; Gargi Maitra

Jaypee Brothers Medical Publishers
2019
nidottu
Salient Features: - The book `Bronchoscopy in ICU' provides a state-of-the-art detailed descriptions of bronchoscopic procedures depicting a variety of bronchoscopy findings. - Introductory chapters provide idea of anatomy of tracheobronchial tree and bronchoscope accessories. - Subsequent chapters provide detailed instructions for performing procedures such as bronchial washing and lavage, handing of bronchoscope, bronchoscopy assisted by noninvasive ventilation, and bronchoscopy during mechanical ventilation. - Pediatric bronchoscopy in ICU is a highlighting feature of the book. - The book is a ready reckoner as it provides step-by-step descriptions and abundant illustrations. - The book provides a comprehensive and up-to-date content for intensivists, pulmonologists, anesthesiologists, surgeons and postgraduate students.
Untersuchung der Verschleißrate und Mikrostruktur von Reibschweißverbindungen

Untersuchung der Verschleißrate und Mikrostruktur von Reibschweißverbindungen

Alok Manas Dubey; Ashok Kumar Yadav; Ajay Kumar

Verlag Unser Wissen
2025
nidottu
In dieser Studie wurde der Einfluss des Reibr hrschwei ens auf die Mikrostruktur, H rte und Verschlei rate einer Al-Cu-Legierung untersucht. Verschlei tests f r Verbindungen aus Aluminiumgusslegierungen wurden auf einer Stift-Scheiben-Maschine bei verschiedenen Belastungen von 2-4 kg und konstanter Gleitgeschwindigkeit durchgef hrt. Die Stifte wurden aus Aluminiumgussbl cken hergestellt, die auf En31-Stahl als Gegenk rper verschlissen waren. Das Verschlei verhalten und die H rte der geschwei ten und ungeschwei ten Bereiche der Verbindung wurden bestimmt. Der h chste H rtewert tritt in der Mitte der Schwei zone auf, gefolgt von einem allm hlichen Abfall ber die TMAZ und HAZ bis zum Erreichen des H rtewerts des Grundmaterials. Die H rte jeder Probe wurde mit dem Reibungs- und Verschlei verhalten der FSW-Aluminiumgusslegierung in Beziehung gesetzt. Die Mikrostruktur der FSW wurde auch f r die Schwei zone (Schmelzzone), die Grenze zwischen Schwei zone und HAZ, die W rmeeinflusszone und den Grundmetallbereich ermittelt.
Étude du taux d'usure et de la microstructure d'un joint soudé par friction-malaxage

Étude du taux d'usure et de la microstructure d'un joint soudé par friction-malaxage

Alok Manas Dubey; Ashok Kumar Yadav; Ajay Kumar

Editions Notre Savoir
2025
nidottu
Cette tude a mesur l'effet du soudage par friction-malaxage sur la microstructure, la duret et le taux d'usure d'un alliage Al-Cu. Des essais d'usure sur des joints en alliage d'aluminium moul ont t r alis s sur une machine disque et broche avec diff rentes charges de 2 4 kg vitesse de glissement constante. Les broches ont t pr par es partir de billettes d'aluminium moul us es sur de l'acier En31 servant de contre-corps. Le comportement l'usure et la duret des parties soud es et non soud es ont t d termin s pour le joint. La valeur de duret la plus lev e se trouve au centre de la zone soud e, suivie d'une diminution progressive travers la TMAZ et la HAZ jusqu' atteindre la valeur de duret du mat riau de base. La duret de chaque chantillon a t corr l e avec le comportement au frottement et l'usure de l'alliage d'aluminium coul par FSW. La microstructure du FSW a galement t obtenue pour la zone de soudure (zone de fusion), la limite (entre la zone de soudure et la HAZ), la zone affect e par la chaleur et la r gion du m tal de base.
Badanie szybkości zużycia i mikrostruktury polączeń spawanych metodą mieszania z tarciem
W niniejszym badaniu zmierzono wplyw zgrzewania tarciowego z mieszaniem na mikrostrukturę, twardośc i szybkośc zużycia stopu Al-Cu. Badania zużycia polączeń odlew w stopu aluminium przeprowadzono na maszynie z dyskiem i sworzniem przy r żnych obciążeniach od 2 do 4 kg i stalej prędkości poślizgu. Sworznie przygotowano z odlewanych kęs w aluminium zużytych na stali En31 jako przeciwcialo. Określono zachowanie podczas zużycia i twardośc spawanej i nespawanej części polączenia. Najwyższa wartośc twardości występuje w środku strefy spawanej, a następnie stopniowo maleje w strefie TMAZ i HAZ, aż do osiągnięcia wartości twardości materialu podstawowego. Twardośc każdej pr bki byla skorelowana z zachowaniem podczas tarcia i zużyciem stopu aluminium odlewanego metodą FSW. Uzyskano r wnież mikrostrukturę FSW dla strefy spawania (strefa stopienia), granicy (między strefą spawania a HAZ), strefy wplywu ciepla i obszaru metalu podstawowego.
Studio del tasso di usura e della microstruttura dei giunti saldati per frizione

Studio del tasso di usura e della microstruttura dei giunti saldati per frizione

Alok Manas Dubey; Ashok Kumar Yadav; Ajay Kumar

Edizioni Sapienza
2025
nidottu
In questo studio stato misurato l'effetto della saldatura per attrito sulla microstruttura, la durezza e il tasso di usura della lega Al-Cu. Sono state condotte prove di usura su giunti in lega di alluminio fuso su una macchina a disco e perno con carichi diversi compresi tra 2 e 4 kg a velocit di scorrimento costante. I perni sono stati preparati da billette di alluminio fuso usurate su acciaio En31 come controcorpo. Sono stati determinati il comportamento all'usura e la durezza delle parti saldate e non saldate del giunto. Il valore di durezza pi elevato si riscontra al centro della zona saldata, seguito da una graduale diminuzione attraverso la TMAZ e la HAZ fino a raggiungere il valore di durezza del materiale di base. La durezza di ciascun campione stata correlata al comportamento di attrito e usura della lega di alluminio fuso di FSW. stata inoltre ottenuta la microstruttura di FSW per il confine della zona di saldatura (zona di fusione) (tra la zona di saldatura e la HAZ), la zona termicamente alterata e la regione del metallo di base.
Emerging Paradigms in Urban Mobility

Emerging Paradigms in Urban Mobility

Om Prakash Agarwal; Samuel Zimmerman; Ajay Kumar

Elsevier Science Publishing Co Inc
2018
nidottu
Emerging Paradigms in Urban Mobility: Planning, Finance and Implementation explains the types of new urban mobility planning paradigms that are emerging throughout the world, along with their potential to transform the transportation landscape. As half of the world’s 7 billion people now live in cities, thus causing severe road congestion, increased air pollution, energy insecurity and sustainability problems in cities and the planet itself, this book presents new paradigms that are emerging to address these problems, along with other topics of note, including economic efficiency, health, the well-being of cities and their residents, urban mobility transformations, and the role of social media. In addition, the book looks at Integrated Corridor Management and how it improves the people-moving performance of multi-modal transport systems in high demand urban corridors and how countries balance the mobility benefits of motorcycles with the environmental and safety threats they pose.