Krishna Institute of Engineering and Technology
Ghaziabad, India

Krishna Institute Of Engineering And Technology is a private engineering institute affiliated to Uttar Pradesh Technical University, situated in the Ghaziabad in the National Capital Region of India 30 km from Delhi. The institute is ISO certified. It consists of 10 academic departments with a focus on education in engineering, science, pharmacy and management. The institute has ties with industry, and offers on-campus placements where students get placed with different companies. Wikipedia.

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Sharma A.,Jawaharlal Nehru University | Kumar P.,Jawaharlal Nehru University | Singh B.,Jawaharlal Nehru University | Chaudhuri S.R.,Krishna Institute of Engineering and Technology | Ghosh S.,Jawaharlal Nehru University
Applied Physics Letters | Year: 2011

Capacitance based spectroscopic techniques have been used to characterize defects in organic Schottky diode based on copper phthalocyanine. Deep traps in organic thin films introduced by varying growth conditions have been identified and characterized by voltage and temperature dependence of capacitance. These results are interpreted using a consistent modelling of capacitance of organic Schottky diode with and without deep traps. © 2011 American Institute of Physics.

Kumar P.,Jawaharlal Nehru University | Sharma A.,Jawaharlal Nehru University | Ray Chaudhuri S.,Krishna Institute of Engineering and Technology | Ghosh S.,Jawaharlal Nehru University
Applied Physics Letters | Year: 2011

The influence of the traps on the carrier transport has been investigated in two and three terminal devices using current-voltage and capacitance based spectroscopic methods. The electrical characteristics of organic thin film transistors fabricated on thin films with and without deep traps are compared. Vast improvement in the different parameters which define the performance of organic thin film transistors is observed in devices fabricated on thin films without structural disorder induced deep traps. © 2011 American Institute of Physics.

Sandeep,Krishna Institute of Engineering and Technology | Kumar S.,National Institute of Technology Kurukshetra | Dwivedi V.K.,GCET
Desalination | Year: 2015

In this present study an attempt has been made to enhance the productivity of a basin type single slope active solar still with improved condensation technique. A new design having additional condensing cover has been proposed and study of its performance was carried out throughout the year. Due to extra condensing surface, higher yield was observed as compared to conventional single slope still. It was experimentally found that water depth, shading on condensing surface and material of extra condensing surface have significant roles in the distillate output of the proposed new design. The yield of the proposed solar still was found to be 3.015kg/m2/day on a particular day in April '12 which was about 25% more than that of a conventional solar still running in parallel under the same climatic conditions. This paper also aimed at finding an optimum design condition of a new model for better productivity. Additional increment in yield up to 14.5% was also observed with further modifications in the design. © 2015 Elsevier B.V.

Kumar V.,Krishna Institute of Engineering and Technology | Dwivedi D.K.,Madan Mohan Malaviya University of Technology
Optik | Year: 2013

Thin films of CdS0.5Se0.5 have been deposited on ultra-clean glass substrates by screen-printing method followed by sintering process. Cadmium sulphide, cadmium selenide and cadmium chloride have been used as the basic source material. Optimum conditions for preparing good quality screen-printed films have been found. X-ray diffraction studies revealed that the films are polycrystalline in nature, exhibiting wurtzite (hexagonal) structure with strong preferential orientation of grains along the (0 0 2) direction. The optical band gap of the films has been studied using reflection spectra in wavelength range 350-900 nm by using double beam spectrophotometer. The electrical resistivity of the films was measured in vacuum by two probe technique. © 2012 Elsevier GmbH.

Goswami N.,CINVESTAV | Goswami N.,Jaypee Institute of Information Technology | Sharma D.K.,Krishna Institute of Engineering and Technology
Physica E: Low-Dimensional Systems and Nanostructures | Year: 2010

In this paper we report the structural, electronic and optical properties of ZnO nanocrystals synthesized by a facile chemical method. ZnO nanoparticles prepared by this method were investigated employing X-ray diffraction (XRD), Transmission electron microscope (TEM), Atomic force microscope (AFM), Fourier transform infrared (FTIR), UV-Visible and Fluorescence (FL) spectroscopy. In order to study the effect of annealing on ZnO nanoparticles, we have analyzed pre- and post-annealed nanoparticles. It was observed that annealing treatment removes the impurities and consequently enhances the purity of ZnO nanoparticles without influencing their wurtzite phase. The absorption and excitation transitions occurring in annealed ZnO nanoparticles are similar to those in unannealed ZnO; however, some fluorescence emissions are altered. On the one hand, annealing assists in obtaining the pure ZnO nanoparticles without affecting their size and crystal structure; on the other hand channels of radiative combination are affected by the annealing process. © 2010 Elsevier B.V. All rights reserved.

Kumar S.,Indian Institute of Technology Delhi | Tiwari A.,Krishna Institute of Engineering and Technology
Energy Conversion and Management | Year: 2010

Two solar stills (single slope passive and single slope photovoltaic/thermal (PV/T) active solar still) were fabricated and tested at solar energy park, IIT New Delhi (India) for composite climate. Photovoltaic operated DC water pump was used between solar still and photovoltaic (PV) integrated flat plate collector to re-circulate the water through the collectors and transfer it to the solar still. The newly designed hybrid (PV/T) active solar still is self-sustainable and can be used in remote areas, need to transport distilled water from a distance and not connected to grid, but blessed with ample solar energy. Experiments were performed for 0.05, 0.10, and 0.15 m water depth, round the year 2006-2007 for both the stills. It has been observed that maximum daily yield of 2.26 kg and 7.22 kg were obtained from passive and hybrid active solar still, respectively at 0.05 m water depth. The daily yield from hybrid active solar still is around 3.2 and 5.5 times higher than the passive solar still in summer and winter month, respectively. The study has shown that this design of the hybrid active solar still also provides higher electrical and overall thermal efficiency, which is about 20% higher than the passive solar still. © 2010 Elsevier Ltd. All rights reserved.

Dwivedi V.K.,Krishna Institute of Engineering and Technology | Tiwari G.N.,Center for Energy Studies
Desalination | Year: 2010

In this paper, thermal modeling of a double slope active solar still has been carried out on the basis of energy balance of east and west glass covers, water mass and basin liner under natural circulation mode. The thermal model of distillation system has been validated for hourly data for inner and outer glass cover temperatures, water temperature and the yield. The hourly thermal and exergy efficiency of active solar still have also been evaluated for 0.03 m water depth. It has been observed that the thermal efficiency of double slope active solar still is lower than the thermal efficiency of double slope passive solar still. However, the exergy efficiency of double slope active solar still is higher than the exergy efficiency of double slope passive solar still. All numerical calculations have been performed for a typical day in the month of March 2008 for the composite climate of Ghaziabad (28°40′N, 77°25′E), U.P, India. © 2009 Elsevier B.V. All rights reserved.

Chalisgaonkar R.,Krishna Institute of Engineering and Technology | Kumar J.,National Institute of Technology Kurukshetra
Procedia Engineering | Year: 2014

In this research, input parameters such as pulse on time (TON), pulse off time (TOFF), peak current (IP), wire feed (WF), wire tension (WT), and servo voltage (SV) has been selected for process capability investigation in WEDM process. The process capability index was evaluated for machining characteristics such as machined work-piece dimension (MWD) and surface roughness (SR). Taguchi's approach to experiment design and analysis was utilized to study the influence of machining parameters on the process capability index. Single response optimization was performed for both machining characteristics to find out the parametric setting which could optimize WEDM process capability. Surface integrity aspects such as microstructure analysis (including, debris, cracks, and crater size etc.) of the selected machined titanium samples have also been investigated. © 2014 Published by Elsevier Ltd.

Sharma A.,Krishna Institute of Engineering and Technology | Agarwal S.,Krishna Institute of Engineering and Technology
Research Journal of Information Technology | Year: 2012

Pattern Analysis has currently become a topic of discussion. A lot of research has been done in the field of Complex Pattern Analysis. It involves automatic detection of patterns in data from the same source and making prediction of the new data coming from the same source. Various techniques were developed which took either one or multiple dimensionalities into account to analyze the existing patterns and predicting the future values. Temperature prediction is a complex process and a challenging task for researchers. It includes expertise in multiple disciplines. The prediction of atmospheric parameters is essential for various applications. Some of them include climate monitoring, drought detection, severe weather prediction, agriculture and production, planning in energy industry, aviation industry, communication, pollution dispersal etc. Accurate prediction of weather parameters is a difficult task due to the dynamic nature of atmosphere. Various models have been developed for predicting the temperature which is based on neural network, fuzzy approach etc. In this paper, wavelet neural network approach is used for temperature prediction. This paper aimed in using wavelet neural networks approach using multiple factors to predict the data values. Temperature data of Taipei, Taiwan of the year 1995-96 is used for result verification. The results obtained are compared with that of other techniques and are found to be better. © 2012 Academic Journals Inc.

Tyagi K.,Ajay Kumar Garg Engineering College | Sharma A.,Krishna Institute of Engineering and Technology
Advances in Engineering Software | Year: 2012

Reliability is one of the most important nonfunctional requirements for software. Accurately estimating reliability for component-based software systems (CBSSs) is not an easy task, and researchers have proposed many approaches to CBSS reliability estimation. Some of these approaches focus on component reliability and others focus on glue code reliability. All of the approaches that have been proposed are mathematical. However, because reliability is a real-world phenomenon with associated real-time issues, it cannot be measured accurately and efficiently with mathematical models. Soft computing techniques that have recently emerged can be used to model the solution of real-world problems that are too difficult to model mathematically. The two basic soft computing techniques are fuzzy computing and probabilistic computing. In this paper, we focus on four factors that have the strongest effect on CBSS reliability. Based on these four factors, we propose a new fuzzy-logic-based model for estimating CBSS reliability. We implemented and validated our proposed model on small applications, and the results confirm the effectiveness of our model. © 2012 Elsevier Ltd. All rights reserved.

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