Electromagnetic induction and damping - quantitative experiments using PC interface

A bar magnet, attached to an oscillating system, passes through a coil periodically, generating a series of emf pulses. A novel method is described for the quantitative verification of Faraday's law which eliminates all errors associated with angular measurements, thereby revealing delicate features of the underlying mechanics. When electromagnetic damping is activated by short-circuiting the coil, a distinctly linear decay of oscillation amplitude is surprisingly observed. A quantitative analysis reveals an interesting interplay of the electromagnetic and mechanical time scales.Comment: 4 pages, to appear in Am. J. Phy

Awareness of Reference Management Software’s among the Research Scholars of Babasaheb Bhimrao Ambedkar University and Mahatma Gandhi Central University

Reference management software is a handy tool for researchers. In this study, the researcher checked the awareness of research scholars of the Department of Library and Information science of Babasaheb Bhimrao Ambedkar University (BBAU) and Mahatma Gandhi Central University (MGCU). An online questionnaire was used for collecting data. The study\u27s findings show that 97% of respondents are aware of the reference management software and Zotero are the most popular RMS among respondents. And most of the respondents are happy with the features which are offered by Reference management software

CITATION ANALYSIS OF LIBRARY AND INFORMATION SCIENCE DOCTORAL THESES AWARDED BY UNIVERSITIES IN INDIA WITH JABREF REFERENCE MANAGEMENT SOFTWARE

ABSTRACT Society\u27s growth and progress are totally dependent on ongoing research. Citation analysis is one of the most common research methodologies used to assess the quality of research in any area of a topic. A bibliometric study would be helpful to all LIS members. To fulfil the study\u27s goals, citation analysis techniques were utilized. The information was gathered from the Shodhganga repository, which is an online database of Indian theses. The Journal of the American Society for Information Science and Technology received the most citations. According to the research, it was ranked first out of 1929 national and worldwide referenced publications, while just seven Indian journals were in the top twenty most cited journals. The current research also suggests that in the LIS field, there is a need to promote collaborative research and improve the quality of articles published in Indian research journals and that Indian academics should pay more attention to peer-reviewed journals for publication so that their research is visible to readers

"Reduction kinetics of iron ore pellets made by addition of -100# size fines in conventional pellets"

The increasing trend in the prices of steel scrap and its short supply led the steel technologists to find a suitable charge mix in the form of sponge iron or Direct Reduced Iron (DRI). Sponge Iron or DRI is obtained from the direct reduction of iron ore and has iron content between 84 to 95 percent. Technically and technologically, sponge iron has been found to be a suitable material for charging in blast furnaces. In the existing blast furnace an increase in production by at least 25 to 35% can be achieved by using pre reduced iron ore. Sponge iron is a better substitute for scrap for steelmaking through EAF / IF routes due to its homogenous nature, Improved productivity and lower coke consumption. Also majority of fines which are generated during the course of handling, mining, transportation etc are exported at a through away price which need to be utilized by making iron ore pellets for sponge iron making. According to industry experts, the preference for usage of DRI will lead to the use of 80 percent DRI in the charge mix in EAFs by 2009-10 which may even reach the 85 percent level by 2011-12 in the various regions of India. A lot of investigations have been carried out on direct reduction process of iron oxides by carbonaceous materials, but little work has been done on the characterization of properties and reduction behavior of iron ore of some mines of Orissa. In the present project work, an attempt has been made to study the reduction behavior and kinetics of fired iron ore pellets. The effect of different reduction parameters such as temperature (900-950°C), time (15-60 min.), reductant quality, mixing of particles of different sizes at different ratios for pellet preparation etc. on the reduction, swelling behavior of iron ore pellets. These form the subject matter of the thesis. First chapter gives the introduction about the subject. It speaks about the need of DRI industry, scope, present status and future planning of DRI industry in India, world wise DRI production, etc. It gives a general idea of raw materials quality required for producing DRI, especially in Rotary Kiln. The second chapter deals with the literature survey. The third chapter deals with planning of experiments ,selection of raw materials, preparation of samples, preparation of iron ore pellets, experimental procedure , evaluation of reduction. vi The results obtained and the discussions made from these observations have been outlined in chapter four. The result for fired iron ore pellets indicated an increase in degree of reduction with increase in reduction temperature (900-950ºC) and time. The reduction kinetics of Sakaruddin iron ore pellets were studied in temperature range of 900-950ºC. Analysis of swelling behavior was also done. Results obtained from chapter four have been summarized in chapter five. Lastly, these conclusions have been followed by the list of references