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Search Results: 1 - 10 of 208 matches for " KALYANI MOHANTA "
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International Journal of Engineering Science and Technology , 2011,
Abstract: Alumina has got some excellent properties like chemical inertness, thermal and mechanical strength against hazardous environment. Alumina is a good ceramic material which is being used for structuralapplications. To enhance the toughness and strength of the body some Zirconia is also used with it. The use of Zirconia in alumina is known as toughening of alumina. One difficulty arises, when alumina and alumina toughened composite are sintered , because the low sinterability of Alumina-Zirconia forced the compact to give very low density body. To overcome this problem alumina and alumina composites are made from slurry method which gives nearly theoretical density. The combined effect of alumina and Zirconia on the phase transformation and microstructure development of heat-treated Alumina-Zirconia composites has been studied. Slurry is prepared by adding water, dispersant, binder and anti-foaming agent. In the present study, Sintering schedule is optimized and kept constant for all samples. After sintering, mechanical behaviour of the composite has been studied.
Use of Student Response Systems for Summative Assessments  [PDF]
Kalyani Premkumar
Creative Education (CE) , 2016, DOI: 10.4236/ce.2016.713187
Abstract: Student Response Systems (Clickers) have been adopted by a number of instructors to increase interactions, student engagement and/or formative assessment and feedback especially in large group sessions. Clickers are well known as tools for active learning strategy particularly in formative assessments. However, they are rarely used in assessments that count. With the advent of clickers with a display screen, attempts are being made to use clickers in summative exams. We examined the feasibility of their use in high stakes summative assessment by piloting such an assessment in a simulated setting. Utilizing the lessons learned in the pilot study, clickers were used in formative and summative assessments in various iterations of a computer course taught by one of the authors (CC). At the end of the course, perceptions of students on the use of clickers for high-stake examinations were obtained using an online survey. The instructor was interviewed to identify factors that facilitated clicker use and the challenges faced. In general, students were accepting of the use of this technology in high stakes exams and found it engaging and satisfying, primarily because of instant feedback. The instructor found the process less time consuming and efficient, and more secure compared to scan sheets. Clickers are best used for examinations of short duration, with multiple-choice questions or questions with minimal text or mathematical entry.
Monitoring Vegetation and Land Surface Temperature Dynamics in Similipal Biosphere Reserve, Odisha  [PDF]
Kamalakanta Mohanta, Debabrata Nandi
International Journal of Geosciences (IJG) , 2017, DOI: 10.4236/ijg.2017.811078
The Moderate Resolution Imaging Spectroradiometer (MODIS) has provided an improved capability for moderate resolution land surface monitoring and for studying surface temperature variations. Surface temperature is a key variable in the surface energy balance. The knowledge of surface temperature is important to a range of issues and themes in earth sciences central to urban climatology, global environmental change, and human-environment interactions. In the study, an attempt has been made to estimate surface temperature over Simlipal Biosphere Reserve. The particular significance of this study is due to the large scale effect of Similipal in the local microclimate of this region. From the study, we found that the north-western part of SBR, there is a greening up tend particularly in the dense forest where NDVI value is supposed to be higher than 0.4. in some part, near to transition and buffer boundary, the open forest (<0.2 NDVI) is increasing over the period. LST mean and LST max curves have more or less same value throughout the year except for the duration DOY161 to DOY257. Except the few occasional deeps which may be data error, the maximum NDVI curves are more or less similar in all the observed periods. The temporal trend of minimal NDVI does not follow any definite pattern and very much irregular in its annual course compared to maximal and mean NDVI. There exists a negative correlation between NDVI and LST with correlation coefficient is below 0.4 in all the observed years.
Reconfigurable co-processor for high performance Discrete Wavelet Transform
Kalyan Mohanta
International Journal on Computer Science and Engineering , 2012,
Abstract: Wavelet transforms have proven to be useful tool for several signal processing applications, including image and video compressions, image segmentation, speech synthesis and telecommunication. With the continuous increase in the use of internet and wireless devices, wavelet transform become more popular over traditional Fourierand cosine transforms in DSP applications especially for embedded multimedia applications. Designers are trying to develop more computation and energy-efficient VLSI architectures for discrete wavelet transform (DWT) so that it can be mapped into application specific DSP processors or into FPGA based reconfigurable coprocessors for embedded electronic devices. Several VLSI architectures have been proposed for computing 1-D and 2-D DWTwhich range from SIMD arrays to folded architectures such as systolic arrays and parallel filters. This paper proposes an efficient architecture for DWT computation based on systolic array model and its configuration as IP core in FPGA based reconfigurable coprocessors. The proposed architecture may be applicable for computation intensive DSP applications for mobile devices.
Effects of R-parity violation on CP asymmetries in $Λ_b \to p π$ decay
R. Mohanta
Physics , 2000, DOI: 10.1103/PhysRevD.63.056006
Abstract: We have studied new CP violating effects in $\Lambda_b \to p \pi$ decay mode, that can arise in Minimal Supersymmetric Standard Model with R-parity violation. We have estimated how much R-parity violation modifies the Standard Model predictions for CP asymmetries within the present bounds. We found that in the R-parity violating model, the rate asymmetry ($a_{cp}$) is suppressed (about 10 times) and the asymmetry parameter $A(\alpha)$ is enhanced (approximately $10^2$ times) with respect to the SM predictions.
Understanding the role of Oryza sativa OsPILS (PIN Like) genes in auxin signaling
Tapan Kumar Mohanta,Nibedita Mohanta
PeerJ , 2015, DOI: 10.7287/peerj.preprints.586v1
Abstract: The phytohormone auxin is one of the most important signaling molecule that undergo accumulation or depletion in temporal or spatial manner due to wide arrays of changes in developmental or stress programme. Proper distribution, maintenance and homeostasis of auxin molecules across the plant system is one of the most important phenomena. The distribution and homeostasis of auxin is maintained by auxin transport system across the plant. Auxin transportation is carried out by auxin transporter family proteins, popularly known as auxin efflux carriers (PINs). Besides, auxin efflux carrier family proteins, a sub-family of auxin efflux carriers (OsPILS) being identified from Oryza sativa and reported here. Oryza sativa encodes for seven putative sub-cellularly localized transmembrane PILS proteins. Differential expression of OsPILS genes are found to be regulated by auxin and cytokinin dependent manner. In auxin treated plants, all OsPILS genes are up-regulated in leaf tissues and down regulated in root tissues during third week time point. In cytokinin treated plants, maximum of OsPILS genes were up-regulated both in leafs and roots tissues during third week time period. Regulation of gene expression of OsPILS genes by auxin and cytokinin during third week time period reflects its important roles during plant growth and development.
Solutions of Seventh Order Boundary Value Problems Using Ninth Degree Spline Functions and Comparison with Eighth Degree Spline Solutions  [PDF]
Parcha Kalyani, Mihretu Nigatu Lemma
Journal of Applied Mathematics and Physics (JAMP) , 2016, DOI: 10.4236/jamp.2016.42032
Abstract: In this article, we develop numerical method by constructing ninth degree spline function using extended cubic spline Bickley’s method to find the approximate solution of seventh order linear boundary value problems at different step lengths. The approximate solution is compared with the solution obtained by eighth degree splines and exact solution. It has been observed that the approximate solution is an excellent agreement with exact solution. Low absolute error indicates that our numerical method is effective for solving high order linear boundary value problems.
Use of information sources by cancer patients: results of a systematic review of the research literature
Kalyani Ankem
Information Research: an international electronic journal , 2006,
Abstract: Objectives. Existing findings on cancer patients' use of information sources were synthesized to 1) rank the most and least used information sources and the most helpful information sources and to 2) find the impact of patient demographics and situations on use of information sources. Method. . To synthesize results found across studies, a systematic review was conducted. Medline and CINAHL were searched to retrieve literature on cancer patients' information source use. The retrieved articles were carefully selected according to predetermined criteria, and several articles were eliminated in a systematic approach. Analysis. The twelve articles that met the criteria were systematically analysed by extracting data from articles and summarizing data for the purpose of synthesis to determine the meaning of findings on most used information sources, least used information sources, most helpful information sources, effect of patient characteristics on preference for an information source, and effect of patient situations on preference for an information source. Results. In descending order of use, health care professionals, medical pamphlets, and family and friends were most used information sources. Internet and support groups were least used. In descending order of helpfulness, books, health care professionals and medical pamphlets were found to be most helpful information sources. Younger patients used health care professionals and certain forms of written information sources more than older patients. Conclusion. . The systematic review shows that many areas of cancer patients' information source use have been either neglected or barely analysed. An in-depth understanding of cancer patients' use of information sources and the characteristics in information sources they consider to be helpful is important for developing successful interventions to better inform patients.
Innovative Culture: An Intervention Strategy for Sustainable Growth in Changing Scenario
Muna Kalyani
International Journal of Business Administration , 2011, DOI: 10.5430/ijba.v2n4p84
Abstract: To-day’s era is very hypercompetitive, a key feature of the new economy in the changing business scenario. The pace of change is increasing at an exponential rate. Continuous change and maintenance of high standards of quality products, services and processes have become prerequisites of the organization’s success in to-day’s competitive world. Organizations can rarely stand still for long. In highly competitive environment, where competition is global and innovation is continuous, change has become a core competency of organizations. Change refers to making things different. Innovation is a more specialized kind of change. All innovation involves change, but not all changes necessarily involve new ideas or lead to significant improvement or radical breakthroughs. Competitive climate requires organizations to institutionalize the process of innovation –to plant the seeds of innovations can utterly transform a scenario, involves the unfreezing-change-refreezing process. Innovation is not a thing that can be purchased or installed like a computer system. Rather it is a culture that must be adopted and nurtured which extracts values from assets old and new, and rejuvenates and revolutionizes industry, society and business. Innovation is an act of changing the established way of doing things, the ability to turn knowledge into value and link emerging technologies with emerging markets and is about bringing creative new ideas to life. The process involves the ways in which norms and values are set and practiced, holds innovative driven culture. This innovative culture can give competitive advantage; provided it is deeply rooted in the functional aspects of the organizations’ culture, where the productive potential of people’ knowledge and actions are guided and governed by the spirit and principles of OCTAPACE and innovative cultures. These cultures get into hyper drive mode to keep growth engine humming. The article examines this context and argues that organizations can use innovative culture as a strategic intervention for managing change for survival and growth.
Cactus Graphs and Some Algorithms
Kalyani Das
Computer Science , 2014,
Abstract: A cactus graph is a connected graph in which every block is either an edge or a cycle. In this paper, we consider several problems of graph theory and developed optimal algorithms to solve such problems on cactus graphs. The running time of these algorithms is O(n), where n is the total number of vertices of the graph. The cactus graph has many applications in real life problems, especially in radio communication system.
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