1,721,946 research outputs found
The dynamics of growth and economic analysis of nuclear power generating industries based on plutonium converter and breeder reactors
Get PDFThesis (M.S.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering; and, (M.S.)--Massachusetts Institute of Technology, Dept. of Economics, 1966.Includes bibliographical references (leaf 149).by Subhash-Chandra Kotecha.M.S
Role of Subhash Chandra Bose in National Movement
Get PDFSubhash Chandra Bose 23 January 1897 – 18 August 1945) was an Indian nationalist whose defiance of British authority in India made him a hero among many Indians, but his wartime alliances with Nazi Germany and Imperial Japan left a legacy vexed by authoritarianism, anti-Semitism, and military failure. The honorific Netaji (Hindi: "Respected Leader") was first applied to Bose in Germany in early 1942—by the Indian soldiers of the Indische Legion and by the German and Indian officials in the Special Bureau for India in Berlin. It is now used throughout India
Generalized geodesies in a Finsler space
No full textIn Riemannian space Hayden [1] studied the asymptotic lines of order p and Srivastava [4] obtained geodesies of order p for the same space. For the Finsler space Srivastava and Sinha studied the asymptotic lines of order p in one of their papers [5]. In this paper we define geodesies of order p, investigate their properties and establish relationship with the asymptotic lines of order p.Srivastava Subhash Chandra. Generalized geodesies in a Finsler space. In: Bulletin de la Classe des sciences, tome 57, 1971. pp. 1224-1232
Decoding "Public authority" under the RTI act: a comment on Subhash Chandra Aggarwal v. Indian national congress
No full textThe June, 2013 order of the Central Information Commission ("CIC") in Subhash Chandra Aggarwal v. Indian National Congress which brought political parties within the scope of the Right to Information ("RTI") Act, has highlighted some issues regarding the drafting and interpretation of the RTI Act. The CIC held that the six national political parties which were respondents
in the case, have the ingredients that qualify them as "public authorities" within the meaning of section 2(h) of the RTI Act. In this comment the author argues that the reasoning for holding what constitutes substantial financing that makes a body a "public authority" is not clear and the interpretation of the definition of "public authority" is inconsisten
Wear reducing additives for lubricants containing solid contaminants
No full textMachines operating in dusty environments, such as mining and civil works, are prone to premature failure, leading to production losses. To address this problem, this research project examines the interaction between solid contaminants and the bearing micro-geometry, in lubricated surface contacts. In particular, it seeks to identify anti-wear additives that are effective in reducing wear under abrasive conditions, making machine elements more dirt tolerant. \ud
In general, the influence of antiwear additive is so small that it is difficult to isolate it. Manufactures often make claims about their antiwear products, which are difficult to verify. Hence, there is a need to characterising the antiwear additives available with a well-defined parameter, making it easier for consumers to compare the efficacy of various additives, and be able to select the most suitable additive for a given environment. \ud
Effect of micro-geometry parameters such as radial clearance, out-of-roughness and surface roughness was examined and a Film Shape Factor (FSF) – also termed gamma ratio – has been proposed for ensuring adequate separation of journal bearings operating in hydrodynamic lubrication regime, where the out-of-roundness values are higher than the surface roughness values. \ud
In this research, an experimental study has been conducted on journal bearings, to examine the influence of five antiwear additives on the bearing wear and micro-geometry. The test additives were provided by the industry partner without revealing their chemical identity or composition; however, these included some of the most commonly used antiwear additives. The tests were performed under three conditions: pure base oil, base oil containing contaminants, and base oil containing contaminants treated with five different additives. \ud
The experiments were aimed at choosing one wear measuring technique that evaluates the performance of an individual additive reliably, and based on this technique the additives were characterised. To achieve these objectives, a multi-wear parameter approach (MWPA) was developed, which employed three main wear measurement methodologies, i.e. weight loss, micro-geometry and particle counts –to examine the effect of the antiwear additives. Minimum oil film thickness was also measured to study the lubrication status in the bearing contacts. The MWPA helped in comparing different wear measuring methods, and in selecting the most reliable one. This approach also helped in developing short duration wear tests, thereby saving time, while still getting reliable results without repeating these. \ud
Wear experiments were performed on seven sets of bronze bearings and steel sleeve shafts. The test contaminant was 16 micron Aluminium oxide Al2O3 powder mixed in oil with 4% concentration by weight. These solid contaminants were treated with five different antiwear additives to study their influence on the bearings. Bearings were operated such that the minimum oil film thickness in the bearing was equal to the size of the contaminants. These tests were run for a constant sliding distance of 7536m.\ud
The results showed that most of the wear measuring techniques do not suit heavily contaminated test conditions. However, the out-of-roundness technique proved to be the most reliable and practical. Based on this technique a methodology was developed which gave a wear characteristic number (N). A unique value of N can be derived for each additive, thereby ranking the additives for their efficacy.\ud
The finding of this research provides a better understanding of the methodologies used for measuring wear in journal bearings subjected to dusty environments, and examines the efficacy of each one of these. The wear characteristic number (N) can be used by manufacturers with support from international standards organisations, so that the users can confidently choose the most appropriate antiwear additive for their application. \ud
Machines operating in a dusty environment, such as mining industry and civil works are prone to premature failure with subsequent production losses. In response to this problem, this research project examines the interaction between solid contaminant particles and the lubricant film micro-geometry in lubricated surface contacts. In particular, it seeks to identify lubricant anti-wear additives, which are effective in reducing wear under abrasive conditions and thus making machine elements more dirt tolerant
A PROSPECTIVE DESCRIPTIVE STUDY OF TRAUMA REGISTRY IN NETAJI SUBHASH CHANDRA BOSE MEDICAL COLLEGE, JABALPUR
No full textBackground: Trauma registries are databases of information regarding patients who have been came and treated in hospital for injuries caused by trauma.
Aim: The objectives of this study to collect data related to trauma registry presenting to our center, as well as to analyze the demographic characteristics and other relevant data of patients admitted in our center.
Methods: A Prospective descriptive demographic study was conducted in Tertiary care center Netaji Subhash Chandra Bose Medical College and Hospital Jabalpur from 1st January 2020 to 30th June 2021. In our study included patients who present at our center with history of recent Orthopaedic trauma and sustained fracture within 48 hours. In our study excluded isolated head injuries. The data collected was analyzed.
Results: Out of 10241 patients, 7271(71%) were male and 2970(29%) were female with 2253(22%) in the 21-30 age group. Road traffic accident was the major cause of trauma (56%)followed by fall and slips (22%) and assaults(18%).The majority of these patients were brought by their family members (68%).Close to half of patients had upper extremity injury (48%) followed by lower extremity injury (45%) followed by Spinal injury (4%) and Pelvis injury(3%).
Conclusion: Trauma registry is complex database of demographic, injuries and outcomes of trauma patients. This study can help to decreasing the burden of trauma and improve health system
Computation of air entrainment into a mixing pipe: An experimental and numerical analysis / Dipti Prasad Mishra and Subhash Chandra Paramanik
Get PDFComputations of entrainment of air into a pipe were performed by placing an
air jet at the bottom of the pipe. An experiment was performed with
cylindrical mixing pipe having different diameter, length and jet location. A
flow meter was used to measure the flow through the nozzle and velocity at
the mixing pipe exit was measured by anemometer. CFD analyses were
performed using Ansys-Fluent 16 to match the experimental results for exit
velocity and amount of air sucked into the pipe. Further numerical
investigations were performed for a mixing pipe with hot jet to estimate the
amount of air entrained as a function pipe diameter, pipe length, nozzle
protrusion and pipe shape. It was found from the numerical simulations there
exists an optimum pipe length and nozzle protrusion for highest entrainment
of air. Also a particular frustum shaped pipe could suck highest air
compared to cylindrical shaped pipe
sj-docx-1-pie-10.1177_09544089221109739 - Supplemental material for Influence of high-intensity horizontal mould vibration on the density, grain refinement and mechanical characteristics of a die cast aluminium alloy (LM21)
No full textSupplemental material, sj-docx-1-pie-10.1177_09544089221109739 for Influence of high-intensity horizontal mould vibration on the density, grain refinement and mechanical characteristics of a die cast aluminium alloy (LM21) by Siddharth Yadav, Santosh Kumar, Satya Prakash Tewari, Subhash Chandra Ram, Rabindra Prasad, Nitesh Kumar Sinha, Manish Deo and Jayant Kumar Singh in Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</p
MOF‐Derived Bifunctional Iron Oxide and Iron Phosphide Nanoarchitecture Photoelectrode for Neutral Water Splitting
No full textThe rational design of effective and inexpensive electrocatalysts for solar-powered water splitting is under intense focus to overcome barriers during half-cell reactions. Towards addressing this issue, we designed and sequentially synthesized Fe2O3 and FeP nanoparticles encapsulated on a carbonaceous matrix nanoarchitecture (Fe2O3@C and FeP@C) from an Fe-based 1,4-benzenedicarboxylate framework (Fe-MIL-88B) through high-temperature pyrolysis followed by a solid-/gas-phase low-temperature phosphidation process. These nanoparticles were employed as bifunctional electrocatalysts deposited onto a Si photoelectrode assembly. The changes in morphological and electronic properties of the as-prepared catalysts were investigated after controlled heat treatment. As-synthesized Fe2O3@C/Si and FeP@C/Si were found to be superior bifunctional photoelectrodes in a neutral aqueous medium under simulated solar irradiation of 100 mWcm(-2). Fe2O3@C/Si exhibited high activity for the oxygen evolution reaction (OER), providing a photoanodic current density of 2.5 mAcm(-2) at 1.65 V (vs. RHE), which was driven by the type-II heterojunction model in the Fe2O3@C/Si system. In parallel, the FeP@C/Si materials exhibited noticeable hydrogen evolution reaction (HER) activity, generating 10 mAcm(-2) cathodic current at -0.07 V (vs. RHE). The varied performance could be attributed to the bulk size dependency of the crystalline Fe2O3 phase on the conductive sp(2)-hybridized carbon framework and an intrinsic synergetic effect in the FeP@C, which originates from electronic interactions between Fe and P with high porosity, and which permits easy diffusion of the electrolyte and efficient electron transfer during hydrogen generation.
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