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Diksha,Jaipur Engineering College and Research Center | Kokil P.,Indian Institute of Information Technology, Design and Manufacturing | Kar H.,Motilal Nehru National Institute of Technology
Engineering Computations (Swansea, Wales) | Year: 2016

Purpose - The purpose of this paper is to develop a new criterion for the exponential stability and H∞ performance of state-space digital filters under the influence of any combination of quantization/ overflow nonlinearities. Design/methodology/approach - The proposed criterion uses the H∞ approach that is suitable for the design of discrete system in the presence of external disturbance. Analysis and synthesis in an H∞ setting is advantageous as it proposes effective disturbance attenuation, less sensitivity to uncertainties and many practical applications. Findings - The criterion not only guarantees exponential stability but also reduces the effect of external interference. A numerical example demonstrating the effectiveness of the proposed method is given. Originality/value - The main result of the paper is reported for the first time and it is useful to ensure the stability of digital filters in the presence of external disturbance and any combination of quantization/overflow nonlinearities. © Emerald Group Publishing Limited.

Chandna V.K.,Jaipur Engineering College and Research Center
Proceedings of the 2015 IEEE 3rd International Conference on MOOCs, Innovation and Technology in Education, MITE 2015 | Year: 2015

Course outcome assessment is a pre-requisite for any programme to assess the performance of the student during the programme of study. Corrective actions are planned accordingly for the achievement of the same. The paper discusses the methodology for the assessment of course outcome of an individual student against pre-defined target. The assessment and analysis also provide the path to mobilize the different activities in the programme and serve as content beyond syllabus. Further, the cumulative assessments of the course outcomes are then used as one of the tool for the assessment of programme outcomes. © 2015 IEEE.

Chandna V.K.,Jaipur Engineering College and Research Center
Proceedings of the 2015 IEEE 3rd International Conference on MOOCs, Innovation and Technology in Education, MITE 2015 | Year: 2015

Graduate Attributes (GAs) in Outcome Based Education (OBE) are the outcomes (of the stake holder especially students) which are to be assessed during their programme of studies. Some of the graduate attributes can be addressed through project based teaching learning process. The indirect assessment approach helps the students to know their strengths and weaknesses in a particular area. The paper presents a methodology adopted for the assessment of graduate attributes through typical technical (project based) events which are organized and managed by the students with assessment rubrics that provide the information about their approach of learning as well as teaching. The paper also presents the assessment through the teaching and learning process, an indirect path to assess the programme outcomes. © 2015 IEEE.

Sharma R.,The Academy of Management | Chandna V.K.,Jaipur Engineering College and Research Center
Proceedings of the 2015 IEEE 3rd International Conference on MOOCs, Innovation and Technology in Education, MITE 2015 | Year: 2015

Post Graduate course viz. Management course inculcates the attributes that are to be assessed for every student. These attributes include ability to investigate, Ability to network and resourceful, independent and critical thinkers, subject specialist, confident, excellent communication skills, collaborator, adaptable etc. are the area of concern. The presence of necessary management attributes guarantees success of a student and is gauged by assessing course outcomes of students. This paper proposes an approach to identify the in competencies in a management graduate by identifying the weak students who do not possess the attributes. The paper also suggest the means to improve the gap during the course delivery. © 2015 IEEE.

Sharma P.,University of Rajasthan | Kumar M.,University of Rajasthan | Mathur N.,University of Rajasthan | Singh A.,University of Rajasthan | And 2 more authors.
Environmental Science and Pollution Research | Year: 2013

Health care waste includes all the waste generated by health care establishments, research facilities, and laboratories. This constitutes a variety of chemical substances, such as pharmaceuticals, radionuclides, solvents, and disinfectants. Recently, scientists and environmentalists have discovered that wastewater produced by hospitals possesses toxic properties due to various toxic chemicals and pharmaceuticals capable of causing environmental impacts and even lethal effects to organisms in aquatic ecosystems. Many of these compounds resist normal wastewater treatment and end up in surface waters. Besides aquatic organisms, humans can be exposed through drinking water produced from contaminated surface water. Indeed, some of the substances found in wastewaters are genotoxic and are suspected to be potential contributors to certain cancers. The aim of this study was to evaluate the genotoxic and cytotoxic potential of wastewaters from two hospitals and three clinical diagnostic centers located in Jaipur (Rajasthan State), India using the prokaryotic Salmonella mutagenicity assay (Ames assay) and the eukaryotic Saccharomyces cerevisiae respiration inhibition assay. In the Ames assay, untreated wastewaters from both of the health care sectors resulted in significantly increased numbers of revertant colonies up to 1,000-4,050 as measured by the Salmonella typhimurium TA98 and TA100 strains (with and without metabolic activation) after exposure to undiluted samples, which indicated the highly genotoxic nature of these wastewaters. Furthermore, both hospital and diagnostic samples were found to be highly cytotoxic. Effective concentrations at which 20 % (EC20) and 50 % (EC50) inhibition of the respiration rate of the cells occurred ranged between ∼0.00 and 0.52 % and between 0.005 and 41.30 % (calculated with the help of the MS excel software XLSTAT 2012.1.01; Addinsoft), respectively, as determined by the S. cerevisiae assay. The results indicated that hospital wastewaters contain genotoxic and cytotoxic components. In addition, diagnostic centers also represent small but significant sources of genotoxic and cytotoxic wastes. © 2013 Springer-Verlag Berlin Heidelberg.

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