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Search Results: 1 - 10 of 223007 matches for " C. Mohan Raj "
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Control of SO2 from Industrial Effluents by a Spray-Cum Bubble Column Scrubber
B. Raj Mohan,B.C. Meikap
Journal of Applied Sciences , 2010,
Abstract: Control of SO2 from industrial off gases need special attention to keen environment clean. In this study the results of scrubbing of sulfur dioxide gas a spray tower in combination with bubble column using a twin fluid air-assist atomizer has been presented. The removal efficiency is found to be a function of inlet SO2 concentration, the air flow rate and the liquid flow rate. Experimental investigation shows that a very high percentage removal of SO2 from 62.54 to 97.58 % can be achieved from a lean air-SO2 mixture (400 to 1200 ppm of SO2) without using any additives or pre-treatment. Increase in the efficiency with respect to concentration is mainly due to the increase in the concentration gradient between the liquid and gas phase SO2 concentrations, thus increasing the driving force for more absorption of SO2 into the liquid droplets. The results also indicate that, increase in liquid flow rates increases the SO2 removal efficiency where as increase in the gas flow rate decreases the removal efficiency. The efficiency of the spray column found to increase with increase spray liquid flow rate (8.35 to 33.34x10-6 m3 sec-1) and concentration of SO2 gas (400 to 1200 ppm). A maximum of almost 99.99% efficiency was observed for 1200 ppm at 3.354x10-3 m3 sec-1 gas flow rate and 33.34x10-6 m3 sec-1 of spray liquid flow rate.
Design and Development of Secret Session Key Generation using Embedded Crypto Device-ARM-LPC 2148
C. Mohan Raj,M. Mathan Kumar,D. Manivannan,A. Umamakeswari
Journal of Artificial Intelligence , 2013,
Abstract: Wireless networks are capable solutions for many industrial and commercial applications. However, a wireless node endures with lots of constraints such as low computation ability, little memory, partial energy resources and so on. In secure communication, different numbers of end devices are used to share the information between wireless devices and also are protected with the help of crypto algorithm and secret keys. The secret keys play a very important role than the algorithm, to ensure the security of the information between different numbers of users. When members of a group need to accept the similar information security and are permitted to dynamically join or leave the group, security entails not only sharing of a secret among lots of users but also be worried with security services like confidentiality, integrity of information as the connection changes. Whenever the system changes, the system manager is responsible to change the secret and supporting keys and to send back the updated keys to the group members. These different numbers of secret keys used in the end devices are generated using software and hardware techniques. In this study the different numbers of secret keys are generated using hardware. LPC 2148 are used to generate the random secret session key with real time parameters, event driven circuits and temperature measurement unit. In all the scenarios, the randomness, issues in hardware are analyzed and discussed.
Polarization and Breakdown Analysis of AlGaN Channel HEMTs with AlN Buffer  [PDF]
Godwin Raj, Mohan Kumar, Chandan Kumar Sarkar
World Journal of Condensed Matter Physics (WJCMP) , 2015, DOI: 10.4236/wjcmp.2015.53024
Abstract: We have demonstrated the first carrier density model for AlGaN channel with AlN buffer using spontaneous and piezoelectric polarization comparison with experimental and theoretical results. From the results we proved that the formation of 2DEG in undoped structure relied both on spontaneous and piezoelectric polarization. The electron distribution of Al concentration (0 < x < 0.5) was measured for both AlGaN channel and barrier. Barrier thickness assumed between 20 and 25 nm for validating the experimental results. The carrier concentration was observed at the specific interface of the N- and Ga-face by assuming x1, x2 = 0. The model results are verified with previously reported experimental data.
Potential of some recently developed fungicides and their combination products for effective management of late blight of potato
Indian Phytopathology , 2012,
Activity spectrum of strobilurins, a new generation of ecofungicides, against some fungal pathogens
Indian Phytopathology , 2012,
Developing Gaussian Process Model to Predict the Surface Roughness in Boring Operation
Balamuruga Mohan Raj. G
International Journal of Engineering Trends and Technology , 2013,
Abstract: In machining industries, achieving better surface finish of a product is very essential. Surface finish is important in terms of tolerances, it reduces assembly time in mating surfaces which results in overall cost reduction. In this work, three cutting speeds, three feed rates and three depth of cuts were used in boring operation. During the boring operation, the accelerometer was fixed on the tool post to record the vibration signal. The surface roughness was measured using perthometer. Finally the Gaussian Process regression model has been developed to predict the surface roughness based on tool post vibration and cutting conditions
Growth, Crystal Structure and Characterization of a New Single Crystal: Lithium Sodium Acid Phthalate (LiNaP), for Third Order Nonlinear Optical Applications  [PDF]
S. Gokul Raj, G. Ramesh Kumar, R. Mohan, B. Sivakumar
Journal of Crystallization Process and Technology (JCPT) , 2012, DOI: 10.4236/jcpt.2012.24018
Abstract: A new alkali metallo-organic single crystal of Lithium Sodium Acid Phthlate (LiNaP) complex has been synthesized from aqueous solution in the equimolar ratio 3:1:2. Transparent and bulk single crystals of dimension 9 × 4 ×2 mm3 have been grown from the conventional slow-cooling technique. The crystal structure of the compound has been solved from single crystal X-ray diffraction. The compound 2[C8H4O3]4-Li3+Na+ crystallizes in triclinic system with a space group of Pī having cell dimensions a = 7.5451(2) ? b = 9.8422(3) ? c = 25.2209(7) ? α = 80.299(2); β = 89.204(2); γ = 82.7770(10). FTIR measurement was carried out fo? LiNaP to study the vibrational structure of the compound. The various functional groups present in the molecule and the role of H-bonds in stabilizing the crystal structure of the compound have been explained. Optical absorption properties were studied for the grown crystal using UV-Vis-NIR spectrum. Thermal measurements were carried out for LiNaP to determine the thermal strength as well as to ascertain the hydrated nature of the crystal. Third order nonliner optical studies have also studied by Z-scan techniques. Nonlinear absorption and nonlinear refractive index were found out and the third order bulk susceptibility of compound was also estimated. The results of all studies have been discussed in detail.
Titers of Anti-Brucella Antibodies by Enzyme Linked Immunosorbant Assay in Vaccinated and Unvaccinated Brucellosis Infected Cattle  [PDF]
Sugandha Raj, Hari Mohan Saxena, Sikh Tejinder Singh
Open Journal of Veterinary Medicine (OJVM) , 2017, DOI: 10.4236/ojvm.2017.710013
Abstract: Brucellosis is an important re-emerging zoonotic disease caused by Brucella organisms. In the absence of a Differentiation of Infected from Vaccinated Animal (DIVA) assay for bovine Brucellosis, it becomes difficult to assess whether the anti-Brucella antibody response in an animal is due to vaccination or infection. We compared the anti-Brucella antibody titers of naturally Brucellosis affected unvaccinated cows, previously vaccinated infected cows, normal healthy vaccinated cows and healthy unvaccinated calves. The titers of anti-Brucella antibodies were estimated by indirect ELISA. The mean titer (log10) was found to be 1.518 ± 0.005 in case of naturally Brucellosis affected cattle which had been vaccinated during calf hood. The mean titer in case of naturally infected cattle which had never been vaccinated was 1.5441 ± 0.005. The mean titer in healthy unaffected cattle vaccinated during calf hood was 1.504 ± 0.002 and that of unvaccinated healthy calves was 0.560 ± 0.016. It was interesting to find that the antibody titers in naturally affected cattle which had never been vaccinated were very significantly (p < 0.01) higher than those of Brucellosis affected cows which had been vaccinated during calf hood. The titer in vaccinated infected cattle was very significantly (p < 0.01) higher than that of uninfected vaccinated cows.
A Study of Carrier State of S. Typhi, Intestinal Parasites & PersonalHygiene amongst Food Handlers in Amritsar City
Mohan U,Mohan V,Raj K
Indian Journal of Community Medicine , 2006,
Results of an Experiment of Preparing Compost from Invasive Water hyacinth (Eichhornia crassipes) in Rupa Lake Area, Nepal
Mohan Raj Kafle,Gandhiv Kafle,Mohan Krishna Balla,Lekhnath Dhakal
Journal of Wetlands Ecology , 2009, DOI: 10.3126/jowe.v2i1.1852
Abstract: Normal 0 false false false MicrosoftInternetExplorer4 st1\:*{behavior:url(#ieooui) } /* Style Definitions */ table.MsoNormalTable{mso-style-name:"Table Normal";mso-tstyle-rowband-size:0;mso-tstyle-colband-size:0;mso-style-noshow:yes;mso-style-parent:"";mso-padding-alt:0cm 5.4pt 0cm 5.4pt;mso-para-margin:0cm;mso-para-margin-bottom:.0001pt;mso-pagination:widow-orphan;font-size:10.0pt;font-family:"Times New Roman";mso-ansi-language:#0400;mso-fareast-language:#0400;mso-bidi-language:#0400;} Water hyacinth Eichhornia crassipes ( Jalakumbhi in Nepali) is an alien invasive species and now creating great environmental and economic problems covering major wetlands of the world. Nepal's wetlands are also greatly invaded by this obnoxious weed from which the social, economic and environmental sectors are facing serious problems for many years. In this context, Wetland Friends of Nepal (WFN) has carried out an experiment on making compost from this invasive weed in Begnas and Rupa Lake areas of Pokhara, Nepal with funding support from Toyota Environmental Activities Grant Program of Toyota Motor Corporation, Japan. This paper provides an overview of the findings of the experiment of preparing compost from Water hyacinth. Key words: Water hyacinth, compost, experiment, Nepal DOI: 10.3126/jowe.v2i1.1852 Journal of Wetlands Ecology , (2009) vol. 2, pp 17-19
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