Browsing by Author "C.S. Pandey"

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Investigation on synthesis, characterization and hydrogenation behaviour of hydrogen storage material: Fe1-xZrxTi1.3 (x = 0.2)
(Elsevier Science Ltd, 1999) B.K. Singh; A.K. Singh; C.S. Pandey; O.N. Srivastava
The present study is aimed at investigations on the structural and microstructural characterization and hydrogenation behaviour of Zr substituted Fe1-xZrxTi1.3 (x = 0.2) alloys. This storage alloy has been synthesized using R.F. induction melting under an argon atmosphere in a previously outgassed graphite crucible. The structural characterization (XRD) has revealed that the as-synthesized sample is multiphasic in nature and embodies the phases FeTi, Fe2Ti, FeTi2 and Ti. Microstructural evaluations (SEM) exhibited the presence of interfaces and cracking. The P-C isotherm was determined and it showed the storage capacity of approximately 1.20 wt.% at 200 °C. The activation as well as desorption kinetics (75% desorption of H2 in 6 min) were found to be better for Zr-substituted alloy (Fe0.8Zr0.2Ti1.3) as compared to FeTi1.3. The improved activation and desorption kinetics are thought to be due to presence of several interfaces e.g. Fe(Zr)Ti/Fe(Zr)Ti2, Fe(Zr)Ti/{Fe(Zr)}2Ti and volume expansion induced cracking of Ti.
Management of COVID-19: Ayurvedic perspective
(National Institute of Science Communication and Information Resources, 2020) Y.B. Tripathi; N. Joshi; S.K. Dubey; P.S. Byadgi; S. Bhat; R. Prasad; B.K. Dwivedi; K.K. Pandey; J.S. Tripathi; C.S. Pandey; K.H.H.V.S.S.N. Murthy; S. Suman; A.K. Pandey; V. Srivastava; V. Jaisawal; K.N. Dwivedi
Ayurveda, a branch of AYUSH system of health care in India is considered as alternative/complementary of medicine (CAM) in WHO. Here, its products are covered under “drug and cosmetics” act but in abroad they are supplements or functional foods. The aim of Ayurveda is to maintain the wellness of a healthy person and to treat a patient. For treatment, Ayurveda adopts 3 approaches i.e., (1) Daivavyapasharya chikitsa) (ypareht enivid 2 ( Yuktivyapashraya chikitsa (Rational therapy) 3 Satvavajaya chikitsa (Psychotherapy) and focuses to enhance the Vyadhikshmatwa (capacity to fight against spread of pathogenesis by strengthening all 7 dhatus (rasa, rakta, meda, mansa, asthi, majja and shukra). The disease COVID-19 falls under “Bhootvidya (GrahaVidya)", which is one of the 8 branches of “Astanga Ayurveda”. It is an “Agantuja” disease, where the disease symptoms appear in 1st stage followed by its spread in the body. Thus, progress of disease (Samprapti) has been considered under concept of shatkriyakala (6 stages of disease development), which has been given high importance for deciding the stage of disease progress and its treatment protocol. Here, we have described the introduction to Astang Ayurveda, concept of disease pathogenesis and holistic approach of treatment in respect to management of COVID-19. It specifically covers symptom based stage of disease progress and its targeted treatment guideline by including all 3 approaches of treatment, described above. Here, the current line of diagnosis, treatment and research related to COVID-19 management has been included, which are reported by basic scientists and physicians of allopathic system. These are indexed in Pubmed and web of science and also described in classical text books of Ayurveda. The same has been reviewed and summarized here, with an objective of possible correlation between the 2 languages of science of health care. © 2020, National Institute of Science Communication and Information Resources. All rights reserved.