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Study of ground ozone and precursors along with particulate matter at residential sites in the vicinity of power plant

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Waste Disposal and Sustainable Energy 2023年第4期5卷 535-549页

作者： Asha b.Chelani rahul Vyawahare Sneha Gautam Air Pollution Control Division CSIR-National Environmental Engineering Research Institute(CSIR-NEERI)NagpurIndia Department of Civil Engineering Karunya Institute of Technology and SciencesCoimbatoreTamil Nadu641114India

Emission source characterization and meteorological influence are the key aspects to gain insight into the ground ozone governing ***-based data analysis techniques help in comprehending local ozone fluctuations in the lack of accurate information on the emission *** sophisticated data analysis,the current study offers insight into the key factors influencing the ozone changes in the vicinity of power *** ozone(O_(3))and its precursor variables carbon monoxide(CO),nitric oxide(NO),nitrogen dioxide(NO_(2)),Sulphur dioxide(SO_(2)),benzene,toluene,ethyl-benzene and xylene(bTEX)along with the particulate matter of size less than 10 and 2.5 micron(PM_(10) and PM_(2.5))and meteorological variables have been studied at a residential site near the coal-fired power plant in the two cities;Chandrapur and Nagpur during 2016–2019.O_(3) is observed to be not correlated significantly(rbles in two *** a finer time scale,however,an association of O_(3) with CO,NO,NO_(2) and bTEX suggested that the O_(3) formation mechanism is driven by volatile organic compounds(VOCs)(mainly bTEX),CO and NO_(x).On the coarser scale,however,seasonality and other factors have distorted the *** forest model with O_(3) concentration as the response variable and NO_(2),NO,SO_(2),CO,bTEX,PM_(10) and PM_(2.5) as independent variables suggested that PM_(10),NO,CO and solar radiation are highly important variables governing the O_(3) dynamics in *** Nagpur,wind direction,relative humidity,temperature,toluene and NO_(2) are more *** analysis to assess the contribution of emission sources suggested the influence of traffic emissions in Nagpur and the dominance of non-traffic related emissions,mainly power plant and mining activities in *** hazard quotient is observed to be>1 in both cities suggesting a health hazard to the

关键词： Ground ozone Particulate matter benzene,ethylbenzene,toluene and xylene(bTEX) Power plant Hazard quotient Random forest model

An Optimal Cluster Head and Gateway Node Selection with Fault Tolerance

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Intelligent Automation & Soft Computing 2023年第2期35卷 1595-1609页

作者： P.rahul b.Kaarthick Coimbatore Institute of Engineering and Technology CoimbatoreThondamuthur641109Tamil NaduIndia

In Mobile Ad Hoc Networks(MANET),Quality of Service(QoS)is an important factor that must be analysed for the showing the better *** Node Quality-based Clustering Algorithm using Fuzzy-Fruit Fly Optimiza-tion for Cluster Head and Gateway Selection(NQCAFFFOCHGS)has the best network performance because it uses the Improved Weighted Clustering Algo-rithm(IWCA)to cluster the network and the FFO algorithm,which uses fuzzy-based network metrics to select the best CH and ***,the major drawback of the fuzzy system was to appropriately select the membership ***,the network metrics related to the path or link connectivity were not considered to effectively choose the CH and *** learning fuzzy sets,this algorithm employs a new Continuous Action-set Learning Automata(CALA)approach that correctly modiﬁes and chooses the fuzzy membership *** the fact that it extends the network’s lifespan,it does not assist in the detection of defective nodes in the routing *** of this,a new Fault Tolerance(NQCAEFFFOCHGS-FT)mechanism based on the Distributed Connectivity Restoration(DCR)mechanism is proposed,which allows the net-work to self-heal as a consequence of the algorithm’s self-healing *** of the way this method is designed,node failures may be utilised to rebuild the network topology via the use of cascaded node *** on the fractional network information and topologic overhead related with each node,the DCR is suggested as an alternative to the *** compared to the NQCAFFFOCHGS algorithm,the recreation results display that the proposed NQCAEFFFOCHGS-FT algorithm improves network performance in terms of end-to-end delay,energy consumption,Packet Loss Ratio(PLR),Normalized Routing Overhead(NRO),and balanced Load Index(bLI).

关键词： Hybrid-manet cluster head gateway node failure fault tolerance distributed connectivity restoration

Sulphamic Acid （H2NSO3H）-Catalyzed Multicomponent Reaction of β-Naphthol： An Expeditious Synthesis of Amidoalkyl Naphthols

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Chinese Journal of Chemistry 2007年第11期25卷 1710-1714页

作者： NAGAWADE, rahul R. SHINDE, Devanand b. Department of Chemical Technology Dr. Babasaheb Ambedkar Marathwada University Aurangabad 431004 (Maharashtra) India

Sulphamic acid （H2NSO3H） was found to be an efficient catalyst for the multicomponent condensation reaction of β-naphthol, aromatic aldehydes and urea or amides to afford the corresponding α-amidoalkyl-β-naphthols in good yields. The remarkable features of this new procedure are high conversions, short reaction time, clean reaction profiles and simple experimental and work-up procedures.

关键词： sulphamic acid multicomponent reaction condensation β-naphthol aryl aldehyde urea

Zirconyl Chloride Promoted Highly Efficient Domino Synthesis of New 1, 2, 3, 4-Tetrahydroquinoline Derivatives in Water

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Chinese Chemical Letters 2006年第9期17卷 1137-1140页

作者： rahul R.NAGAWADE Devanand b.SHINDE Division of Medicinal Chemistry-New Drug Discovery Wockhardt Research Centre Aurangabad-431210 (M.S.) India Department of Chemical Technology Dr. Babasaheb Ambedkar Marathwada University Aurangabad-431004 (M.S.) India Department of Chemical Technology Dr. Babasaheb Ambedkar Marathwada University Aurangabad-431004 (M.S.) India

The tetrahydroquinoline moiety is a structural feature of many natural products. by using a domino reaction of aromatic amines and cyclic enol ethers catalyzed by zirconyl chloride in water, various tetrahydroquinoline derivatives were synthesized efficiently. Most cyclized products showed cis selectivity. The cis selectivity was tentatively rationalized due to chelation control in water.

关键词： Anilines cyclic enol ether domino reaction tetrahydroquinoline zirconyl chloride

维普期刊数据库

bF_3·OEt_2 Promoted Solvent-free Synthesis of benzimidazole Derivatives

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Chinese Chemical Letters 2006年第4期17卷 453-456页

作者： rahul R.NAGAWADE Devanand b.SHINDE Division of Medicinal Chemistry-New Drug Discovery Wockhardt Research CentreAurangabad-431210 (M.S.)India Department of Chemical TechnologyDr.Babasaheb Ambedkar Marathwada UniversityAurangabad-431004 (M.S.)India Department of Chemical Technology Dr.Babasaheb Ambedkar Marathwada UniversityAurangabad-431004 (M.S.)India

Differently substituted benzimidazoles have been synthesized in very good yields in solvent-free conditions from o-phenylenediamine and aldehydes in the presence of bF3·OEt2 as a catalyst. The method is applicable to aromatic, unsaturated and aliphatic aldehydes and to substituted o-phenylenediamines without significant differences.

关键词： bF3·OEt2 aldehydes benzimidazoles solvent-free reactions drugs.

维普期刊数据库

Novel multistage solid-liquid circulating fluidized bed： Hydrodynamic characteristics

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Particuology 2018年第3期16卷 134-142页

作者： Prakash V. chavan Manjusha A. Thombare Sandip b. bankar Dinesh V. Kalaga Veena A. Patil-Shinde Department of Chemical Engineering College of Engineering Bharati Vidyapeeth Deemed University Pune 411 043. India Department of biotechnology and Chemical Technology School of Chemical Technology Alto University P.O. Box 16100. FI-00076 Aalto Finland Department of Chemical Engineering City College of New York CUNY NY USA

The present work proposes a novel radially cross-flow multistage solid-liquid circulating fluidized bed （SLCFb）. The SLCFb primarily consists of a single multistage column （having an inner diameter of 100 mm and length of 1.40 m）, which is divided into two sections wherein both the steps of utilization or loading （e.g., adsorption and catalytic reaction） and regeneration of the solid phase can be carried out simulta- neously in continuous mode. The hydrodynamic characteristics were studied using ion exchange resin as the solid phase and water as the fluidizing medium. The loading and flooding states were determined for three particle sizes; i.e,. 0.30, 0,42, and 0.61 ram. The effects of the superficial liquid velocity and solid feed rate on the solid hold-up were investigated under loading and flooding conditions. The solid hold-up increases with an increase in the solid feed rate and decreases with an increase in the superficial liquid velocity. An artificial-intelligence formalism, namely the multilayer perceptron neural network （MLPNN）, was employed for the prediction of the solid hold-up. The input space of MLPNN-based model consists of four parameters, representing operating and system parameters of the proposed SLCFb. The developed MLPNN-based model has excellent prediction accuracy and generalization capability.

关键词： Solid-liquid fluidized bed Solid-liquid circulating fluidized bed Hydrodynamics Modeling

Turbulence,suspension and downstream fining over a sand-gravel mixture bed

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International Journal of Sediment Research 2013年第2期28卷 194-209页

作者： K.GHOSHAL rahul MAZUMDER C.CHAKRAbORTY b.S.MAZUMDER Department of Mathematics Indian Institute of TechnologyKharagpur 721302India Assist.Prof. MIT CambridgeUSA Post-Doctoral Assoc. Fluvial Mechanics Laboratory Physics and Earth Science DivisionIndian Statistical InstituteKolkata 700108India Prof.

Flume experiments were carried out to study the turbulence and its impact on suspension and segregation of grainsizes under unidirectional flow conditions over the sand-gravel mixture *** components of fluid velocity with fluctuations were measured vertically using 3-D Micro-acoustic Doppler velocimeter(ADV).The theoretical models for velocity and sediment suspension have been developed based on the concept of mixing length that includes the damping effect of turbulence due to sediment suspension in the flow over the sand-gravel mixture *** analysis of segregation of grain-sizes along downstream of the bed has been performed using the principle of unsupervised learning or clustering *** data analysis suggests that there is a progressive downstream fining of sediment sizes with selective depositions of gravels,sand-gravels and sand materials along the stream,which may be segmented into three regions such as,the upstream,the transitional and the downstream *** contribution is relevant to understand the direction of ancient rivers,the bed material character in the river form,sorting process and its role in controlling the sediment flux through landscape.

关键词： Sand-gravel mixture Flow velocity ADV Suspension concentration Size-sorting Clustering

Non-iterative Cauchy kernel-based maximum correntropy cubature Kalman filter for non-Gaussian systems

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Control Theory and Technology 2022年第4期20卷 465-474页

作者： Aastha Dak rahul Radhakrishnan Department of Electrical Engineering Sardar Vallabhbhai National Institute of TechnologySuratGujarat 395007India

This article addresses the nonlinear state estimation problem where the conventional Gaussian assumption is completely ***,the uncertainties in process and measurements are assumed non-Gaussian,such that the maximum correntropy criterion(MCC)is chosen to replace the conventional minimum mean square error ***,the MCC is realized using Gaussian as well as Cauchy kernels by defining an appropriate cost *** results demonstrate the superior estimation accuracy of the developed estimators for two nonlinear estimation problems.

关键词： Maximum correntropy criterion Cubature Kalman filter Non-Gaussian noise Cauchy kernel Gaussian kernel

Cytomegalovirus infection in the bone marrow transplant patient

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World Journal of Transplantation 2015年第4期5卷 287-291页

作者： Vivek bhat Amit Joshi rahul Sarode Preeti chavan Advanced Centre for Treatment Research and Education in CancerTata Memorial Centre Tata Memorial Hospital

Cytomegalovirus(CMV) infection is an important contributor to the morbidity and mortality associated with bone marrow transplantation(bMT). Infection may lead to CMV disease involving multiple organs such as pneumonia, gastroenteritis, retinitis, central nervus system involvement and others. CMV seropositivity is an important risk factor and approximately half of bMT recipients will develop clinically significant infection most commonly in the first 100 d post-transplant. The commonly used tests to diagnose CMV infection in these patients include the pp65 antigenemia test and the CMV DNA polymerase chain reaction(PCR) assay. because of its greater sensitivity and lesser turnaround time, the CMV PCR is nowadays the preferred test and serves as a main guide for pre-emptive therapy. Methods of CMV prevention include use of blood products from seronegative donors or leukodepleted products. Prophylaxis or pre-emptive therapy strategies for CMV prevention may be used post-transplant with the latter becoming more common. The commonly used antivirals for pre-emptive therapy and CMV disease management include intravenous gancyclovir and foscarnet. The role of intravenous immunoglobulin, although used commonly in CMV pneumonia is not clear.

关键词： Cytomegalovirus Infection bone marrow transplant