Gurgaon, India
Gurgaon, India

Not to be confused with ITM University, an autonomous university based in Gurgaon, IndiaITM University is a multidisciplinary university based in Gwalior, India with subjects spanning the science, engineering, management, fine arts, social science, arts, and nursing. The University is established by the Act of State Legislature Madhya Pradesh and is notified in the Official Gazette of the State Government. The flagship Institutions under ITM Group of Institution like Institute of Technology & Management & Institute of Allied Science and Computer Applications at Gwalior are NBA & NAAC accredited respectively. Wikipedia.


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Khanna V.,ITM University | Das B.K.,ITM University | Bisht D.,JIIT University | Singh P.K.,National Physical Laboratory India
Renewable Energy | Year: 2015

A new lumped-parameter equivalent circuit model using three-diodes is presented in this work for large area (~154.8cm2) industrial silicon solar cells. The estimation of values of ideality factors n1 (>1) and n2 (>2) using a Particle Swarm Optimization (PSO) algorithm for the two-diode model of the industrial samples has been found not to be in conformity with the theoretical values (n1=1 and n2=2 in the literature). The two diodes of the two-diode model are not able to define the different current components of the solar cells clearly. A model with three-diodes has been proposed to better explain the experimental data. In the proposed model, we considered the series resistance, Rs, of the solar cell to vary with the current flowing through the solar cell device. All the parameters of the proposed model have been estimated using a PSO algorithm and they were compared with the parameters of the two-diode model. The new model has been found to be a better model to define clearly the different current components of the large size industrial silicon solar cells. © 2015 Elsevier Ltd.


Dispersive liquid-liquid microextraction (DLLME) is applied for the determination of copper in cereals and vegetable food samples using flame atomic absorption spectrometry (FAAS). The maximum extraction efficiency of copper was obtained after the optimisation of parameters such as extraction and dispersing solvents, pH, concentration of 2,9-dimethyl-1,10-phenanothroline (DPT), N-phenylbenzimidoyl thiourea (PBITU) and salt. The optimised methodology exhibited a good linearity in the range of 0.2- 20 ng/mL copper with relative standard deviations percentage (RSD,%) from ±1.5% to 3.5%. The method is found to be simple and rapid for the analysis of copper in food samples with the limit of detection (LOD) and quantitation (LOQ) were 0.05 and 0.16 ng/mL, respectively. Good recoveries of copper were obtained in the range of 93.5-98.0% in food samples as well as in Certified Reference Material (99.1%). The application of the proposed method has been successfully tested for the determination of copper in cereals (maize, millet, rice, wheat, gram, lentils, kidney beans and green beans) and vegetable (potato, cauliflower, tomato, spinach, green beans, lettuce, egg plants and bitter gourd) food samples. © 2013 Elsevier Ltd. All rights reserved.


Espinosa L.,ITM University | Bonache V.,ITM University | Salvador M.D.,ITM University
Wear | Year: 2011

The effect of adding Cr3C2, VC or a mixture of both as a grain growth inhibitors to cemented carbides obtained from WC-12wt.%Co nanocrystalline mixtures on the behaviour of friction and dry sliding wear have been studied. All the wear tests were performed on a tribometer with ball on disc configuration, using a WC-6wt.%Co ball as a counterpart with normal contact loads of 40 and 60N, sliding distance of 2000m and a sliding speed of 0.1m/s. A significant reduction in the wear rates was observed by the effect of the aforementioned additives, in particular for the VC, which showed an increase in the wear resistance of the order of 90%. The analysis of wear and surface damage were correlated to the observed behaviour. © 2011 Elsevier B.V.


Archana D.,Motilal Nehru National Institute of Technology | Singh B.K.,Motilal Nehru National Institute of Technology | Dutta J.,ITM University | Dutta P.K.,Motilal Nehru National Institute of Technology
Carbohydrate Polymers | Year: 2013

In our present study, the blends of chitosan, poly(N-vinylpyrrolidone) (PVP) and titanium dioxide (TiO2) were investigated by Fourier transform infrared (FTIR) spectroscopy and thermogravimetric analysis (TGA). The size distribution of the TiO2 nanoparticles was measured using transmission electron microscope and scanning electron microscope. The studies on the mechanical properties of composite material indicate that the addition of TiO2 nanoparticles increases its strength. The prepared nanocomposite dressing has excellent antimicrobial efficacy and good biocompatibility against NIH3T3 and L929 fibroblast cells. Compared to conventional gauze, soframycin skin ointment and chitosan treated groups, the prepared nano dressing caused an accelerated healing of open excision type wounds in albino rat model. The synergistic effects of nanocomposite dressing material like good antibacterial ability, high swelling properties, high WVTR, excellent hydrophilic nature, biocompatibility, wound appearance and wound closure rate through in vivo test makes it a suitable candidate for wound healing applications.


Misra A.K.,ITM University
Water Resources Management | Year: 2011

Large scale emigrations from rural areas to urban areas and population growth have been uninterrupted and accelerating phenomena in parts of Ganga basin, where urbanization is increasing at an unprecedented rate. Urban agglomeration is causing radical changes in groundwater recharge and modifying the existing mechanisms. Majority of the cities are sited on unconfined or semi confined aquifers depend upon river water and groundwater for most of their water supply and disposal of most of their liquid effluents and solid residues to the rivers and ground. There has also been an inevitable rise in waste production. Drainage of surface water has been disrupted as the small natural channels and low lying areas have been in filled, often with municipal waste. Total water potential of the Ganga basin including surface water potential and ground water potential is around 525.02 km3 and 170.00 km3 respectively. Basin supports approximately 42% of the total population in India. Water tables are declining at approximately an average of 0.20 m per year in many parts of the basin and there is a trend of deteriorating groundwater quality. The demand of water has been increased many folds and most of the areas are highly reliant upon the groundwater to meet this increasing demand for water, but unfortunately degradation of groundwater both in terms of quantity and quality has deteriorated the situation. Studies shows that change in climate may increase temperature by 2 to 6°C and can reduce precipitation up to 16%, which could reduce the groundwater recharge by 50%. In densely populated Ganga basin urban drainage consumes a high proportion of the investments into urban infrastructure and needs integrated approach for the sustainable development of water management, water education regarding conservation and pollution caused by urbanization. © 2010 Springer Science+Business Media B.V.


Olatomiwa L.,University of Malaya | Olatomiwa L.,Minna Federal University Of Technology | Mekhilef S.,University of Malaya | Shamshirband S.,University of Malaya | And 3 more authors.
Solar Energy | Year: 2015

In this paper, the accuracy of a hybrid machine learning technique for solar radiation prediction based on some meteorological data is examined. For this aim, a novel method named as SVM-FFA is developed by hybridizing the Support Vector Machines (SVMs) with Firefly Algorithm (FFA) to predict the monthly mean horizontal global solar radiation using three meteorological parameters of sunshine duration (n-), maximum temperature (Tmax) and minimum temperature (Tmin) as inputs. The predictions accuracy of the proposed SVM-FFA model is validated compared to those of Artificial Neural Networks (ANN) and Genetic Programming (GP) models. The root mean square (RMSE), coefficient of determination (R2), correlation coefficient (r) and mean absolute percentage error (MAPE) are used as reliable indicators to assess the models' performance. The attained results show that the developed SVM-FFA model provides more precise predictions compared to ANN and GP models, with RMSE of 0.6988, R2 of 0.8024, r of 0.8956 and MAPE of 6.1768 in training phase while, RMSE value of 1.8661, R2 value of 0.7280, r value of 0.8532 and MAPE value of 11.5192 are obtained in the testing phase. The results specify that the developed SVM-FFA model can be adjudged as an efficient machine learning technique for accurate prediction of horizontal global solar radiation. © 2015 Elsevier Ltd.


Choudhury T.,Indian Institute of Technology Guwahati | Misra A.K.,ITM University
Mitigation and Adaptation Strategies for Global Change | Year: 2014

The biggest challenge of the 21st century is to satisfy the escalating demand of energy and minimize the globally changing climate impact. Earth to air heat exchanger (EAHE) system can effectively reduce heating affects on buildings. An experimental study was carried out by designing EAHE system using low cost building materials like Bamboo (Bambuseae) and hydraform (cement and soil plaster) to reduce the energy consumption of buildings and minimize the impact of climate change. This system utilizes earth’s constant subterranean temperature for naturally heating or cooling the inlet air. This study was carried out in the North Eastern part of India. An open loop EAHE system was developed to predict the heating and cooling potential of the system. Within the system locally available bamboos were used for constructing the tunnel pipes and soil-cement mixture plaster was used to enhance the conductivity of the bamboo pipes. Soil-cement mixtures are capable of decreasing the humidity by 30 to 40 %. Majority of the North Eastern region of India, have humid climatic conditions through out the year. Experiment was performed continuously for 7 days and the result shows that irrespective to the inlet air temperature (ranges from 35 °C to 42 °C), outlet air temperature was recorded between 25 °C and 26 °C, which shows the effectiveness of the system. After a series of experimental analysis the study reveals that underground tunnel based fresh air delivery system is one of the easily feasible and economically feasible techniques which can drastically reduce the energy consumption of the buildings and help in addressing the continuously escalating demand of power and minimizing the impact of changing climatic conditions on buildings. © 2013, Springer Science+Business Media Dordrecht.


Sharma S.,ITM University | Ghoshal S.K.,University of Technology Malaysia
Renewable and Sustainable Energy Reviews | Year: 2015

Transportation of people and commodities being a socio-economic criterion needs clean energy and the demand is kept on increasing with modernization. Consequently, generation of a fuel with safer, efficient, economic and reasonably environmental friendly features is the key issue towards fulfilling such demands. Hydrogen seems to be an ideal synthetic energy carrier due to its lightweight, exclusive abundance and environmentally benign oxidation product (water). However, storage remains a big challenge. In this communication, recent developments in the production of hydrogen fuel, applications and storage together with the environmental impacts of hydrogen as energy carrier are emphasized. © 2014 Elsevier Ltd. All rights reserved.


Misra A.K.,ITM University
Mitigation and Adaptation Strategies for Global Change | Year: 2013

Agriculture consumes more than two-thirds of global fresh water out of which 90 % is used by developing countries. Freshwater consumption worldwide is expected to rise another 25 %by 2030 due to increase in population from 6. 6 billion currently to about 8 billion by 2030 and over 9 billion by 2050. Worldwide climate change and variability are affecting water resources and agricultural production and in India Ganga Plain region is one of them. Hydroclimatic changes are very prominent in all the regions of Ganga Plain. Climate change and variability impacts are further drying the semi-arid areas and may cause serious problem of water and food scarcity for about 250 million people of the area. About 80 million ha out of total 141 million ha net cultivated area of India is rainfed, which contributes approximately 44 % of total food production has been severely affected by climate change. Further changing climatic conditions are causing prominent hydrological variations like change in drainage density, river morphology (tectonic control) & geometry, water quality and precipitation. Majority of the river channels seen today in the Ganga Plain has migrated from their historic positions. Large scale changes in land use and land cover pattern, cropping pattern, drainage pattern and over exploitation of water resources are modifying the hydrological cycle in Ganga basin. The frequency of floods and drought and its intensity has increased manifold. Ganga Plain rivers has changed their course with time and the regional hydrological conditions shows full control over the rates and processes by which environments geomorphically evolve. Approximately 47 % of total irrigated area of the country is located in Ganga Plain, which is severely affected by changing climatic conditions. In long run climate change will affect the quantity and quality of the crops and the crop yield is going to be down. This will increase the already high food inflation in the country. The warmer atmospheric temperatures and drought conditions will increase soil salinization, desertification and drying-up of aquifer, while flooding conditions will escalate soil erosion, soil degradation and sedimentation. The aim of this study is to understand the impact of different hydrological changes due to climatic conditions and come up with easily and economically feasible solutions effective in addressing the problem of water and food scarcity in future. © 2012 Springer Science+Business Media B.V.


Archana D.,Motilal Nehru National Institute of Technology | Dutta J.,ITM University | Dutta P.K.,Motilal Nehru National Institute of Technology
International Journal of Biological Macromolecules | Year: 2013

In our present investigation, a ternary nano dressing consists of titanium dioxide nano particle loaded chitosan-pectin was prepared to evaluate biocompatibility, antimicrobial and in vivo wound healing properties. The photoactive property of TiO2 based materials makes it important candidate for numerous medical applications. Chitosan can be easily processed into membranes, gels, nanofibers, beads, nanoparticles, scaffolds, and sponge forms that can be used in wound healing applications. Pectin acts as a natural prophylactic substance against poisoning with toxic cations and its styptic and curing effects are well documented in healing ointments. The characterizations of prepared nano dressing were made by FTIR, TGA, DSC, SEM and TEM. The physicochemical parameters of nano dressing were evaluated by various techniques, namely, the Whole blood clotting test, haemolysis ratio measurement, cytotoxicity test using NIH3T3 and L929 fibroblast cells. The in vivo open excision-type wound healing efficiency of prepared nano dressing and its comparison with conventional gauze were evaluated by measuring wound contraction and histological examinations in adult male albino rats. The synergistic effects of nano dressing such as good antibacterial ability, high swelling properties, high water vapour transmission rate (WVTR), excellent hydrophilic nature, biocompatibility, wound appearance, wound closure rate and histological study through in vivo test makes it a suitable candidate for wound healing applications. © 2013 Elsevier B.V.

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