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Statistical modeling and optimization of a multistage gas-solid fluidized bed for removing pollutants from flue gases

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Particuology 2015年第5期13卷 72-81页

作者： k.Mahalik Y.k.mohanty k.C.Biswal G.k.Roy j.N.Sahu Department of Chemical Engineering Gandhi Institute of Engineering and Technology Department of Chemical Engineering National Institute of Technology Department of Chemical Engineering Faculty of EngineeringUniversity of Malaya Petroleum and Chemical Engineering Programme Area Faculty of EngineeringInstitut Teknologi Brunei(A Technology University)

The present paper describes the statistical modeling and optimization of a multistage gas-solid fluidized bed reactor for the control of hazardous pollutants in flue gas. In this work, we study the hydrodynamics of the pressure drop and minimum fluidization velocity. The hydrodynamics of a three-stage fluidized bed are then compared with those for a single-stage unit. It is observed that the total pressure drop over all stages of the three-stage fluidized bed is less than that of an identical single-stage system. However, the minimum fluidization velocity is higher in the single-stage unit. Under identical conditions, the minimum fluidization velocity is highest in the top bed, and lowest in the bottom bed. This signifies that the behavior of solids changes from a well-mixed flow to a plug-flow, with intermediate behavior in the middle bed.

关键词： Fluidized bed Multi-stage Pressure drop Minimum fluidization velocity Optimization

Detection of Chlorophenolic Compounds in Bleaching Effluents of Chemical Pulps

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中国造纸 2008年第5期27卷 35-40页

作者： Chhaya Sharma S. mohanty S. kumar N.j. Rao Department of Paper Technology IIT-Roorkee India Gas Authority of India Ltd. Calcutta India jP Institute Gunna India

Laboratory bleaching effluents from the chlorination and caustic extraction stages of mixed wood kraft pulp processing have been analysed both qualitatively and quantitatively for various chlorophenolics by using GC.A number of chlorinated derivaties of phenols,catechols,guaiacols and syringaldehydes have been detected and their concentrations are *** results are compared with that of different agriculture residue/hardwood pulps,which were reported in *** concentrations of various compounds detected have also been compared with their reported 96LC50 values.

关键词：化学纸浆漂白方法制造方法造纸技术

Gas Chromatography Analysis of Resin and Fatty Acids from Laboratory Generated Bleach Plant Effluents

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中国造纸 2007年第5期26卷 29-33页

作者： Chhaya Sharma S. mohanty S. kumar N.j. Rao Department of Paper Technology llT-Roorkeelndia Gas Authority of India Ltd. Calcutta India jP Institute Gunna India

Laboratory generated spent bleached liquor from the chlorination, caustic extraction stage of mixed wood kraft pulp processing has been analyzed both qualitatively and quantitatively for various resin & fatty acids by using GC. A number of resin acids, saturated and unsaturated fatty acids, chloro fatty and resin acid have been detected and their concentrations are estimated. The results are compared with results on different agriculture residue/hardwood pulps, which were reported earlier. The concentrations of various compounds detected have also been compared with their reported LC50 values.

关键词：气相色谱分析脂肪酸树脂酸漂白废液

Chronic methadone use,poor bowel visualization and failed colonoscopy:A preliminary study

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世界胃肠病学杂志：英文版 2012年第32期18卷 4350-4356页

作者： Siddharth Verma joshua Fogel David j Beyda Brett Bernstein Vincent Notar-Francesco Smruti R mohanty Department of Internal Medicine Division of GastroenterologyNew York Methodist HospitalWeill Cornell Medical CollegeBrooklynNY 11215United States Department of Finance and Business Management Brooklyn CollegeBrooklynNY 11210United States Department of Internal Medicine Division of GastroenterologySUNY Downstate Medical Center University Hospital of BrooklynLong Island College HospitalBrooklynNY 11201United States Department of Internal Medicine Division of GastroenterologyBeth Israel Medical CenterAlbert Einstein College of MedicineNew YorkNY 10003United States

AIM:To examine effects of chronic methadone usage on bowel visualization,preparation,and repeat ***:In-patient colonoscopy reports from October,2004 to May,2009 for methadone dependent(MD) patients were retrospectively evaluated and compared to matched opioid naive controls(C).Strict criteria were applied to exclude patients with risk factors known to cause constipation or gastric *** reports of all eligible patients were analyzed for degree of bowel visualization,assessment of bowel preparation(good,fair,or poor),and whether a repeat colonoscopy was *** visualization was scored on a 4 point scale based on multiple prior studies:excellent = 1,good = 2,fair = 3,or poor = *** of variance(ANOVA) and Pearson χ 2 test were used for data *** analysis included correlation between methadone dose and colonoscopy *** variables significantly differing between MD and C groups were included in both univariate and multivariate logistic regression analyses.P values were two sided,and < 0.05 were considered statistically ***:After applying exclusionary criteria,a total of 178 MD patients and 115 C patients underwent a colonoscopy during the designated study period.A total of 67 colonoscopy reports for MD patients and 72 for C were included for data *** and gender matched controls were randomly selected from this population to serve as controls in a numerically comparable *** average age for MD patients was 52.2 ± 9.2 years(range:32-72 years) years compared to 54.6 ± 15.5 years(range:20-81 years) for C(P = 0.27).Sixty nine percent of patients in MD and 65% in C group were males(P = 0.67).When evaluating colonoscopy reports for bowel visualization,MD patients had significantly greater percentage of solid stool(i.e.,poor visualization) compared to C(40.3% vs 6.9%,P < 0.001).Poor bowel preparation(35.8% vs 9.7%,P < 0.001) and need for repeat colonoscopy(32.8% vs 12.5%,P = 0.004)

关键词：结肠镜可视化检查 logistic回归分析慢性排便酮单因素分析

Integrated Mineralogical Characterisation of Banded Iron Ores of Orissa and Its Implications on Beneficiation

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journal of Minerals and Materials Characterization and Engineering 2012年第12期11卷 1133-1142页

作者： j. k. mohanty M. S. jena A. k. Paul 1Council for Scientific and Industrial Research (CSIR) Institute of Minerals and Materials Technology Bhubaneswar India Council for Scientific and Industrial Research (CSIR) Institute of Minerals and Materials Technology Bhubaneswar India Department of Geology Utkal University Bhubaneswar India

Iron is a primary raw material for steel industry. Increase in demand for steel puts pressure on iron resources of India in respect of its grade and reserve. With increase in demand for good grade of ore vis-a-vis its limited reserve, the utilization of low to medium grade iron ores is the order of the day with adoption of advanced beneficiation techniques. In order to find out the effective way of utilization, an in depth mineralogical study is essential as it throws light on the mineralogical peculiarities associated with the ores which affect the resultant beneficiation technique as well as the final product. In order to have a detail insight into the different mineralogical attributes, various characterisation studies megascopic, microscopic (both optical & electron), XRD, mossbauer and VSM are undertaken on the iron ores from different iron ore formations of Orissa. Importance of integrated mineralogical characterisation in beneficiation of iron ores is discussed.

关键词： Iron Formation Characterization Beneficiation Mossbauer Spectroscopy Orissa

印度一水硬铝石样品中氧化铁相的矿物学、解离和浸出特性（英文）

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Transactions of Nonferrous Metals Society of China 2018年第8期28卷 1640-1651页

作者： Danda Srinivas RAO Swagat S.RATH Nilima DASH Swagatika mohanty Surendra k.BISWAL Council of Scientific and Industrial Research Institute of Minerals and Materials Technology

利用磁选和浸出技术从印度一水硬铝石样品中除铁,采用扫描电镜、电子探针显微分析仪和X射线衍射等定量矿物学评价技术进行深入的矿物学表征研究。结果表明,极细的赤铁矿颗粒与其他几种矿物相以复杂的方式结合在一起;即使粒度小于38μm,... 详细信息

利用磁选和浸出技术从印度一水硬铝石样品中除铁,采用扫描电镜、电子探针显微分析仪和X射线衍射等定量矿物学评价技术进行深入的矿物学表征研究。结果表明,极细的赤铁矿颗粒与其他几种矿物相以复杂的方式结合在一起;即使粒度小于38μm,仍有约60%的赤铁矿未被解离出来;这个粒度也是物理分离过程去铁的极限。湿式强磁选研究表明,只有49%的铁可被除去。进一步的草酸浸出研究表明,在固液比0.05:1、温度90°C、时间120 min、酸浓度1 mol/L的条件下,可除去约76%的铁。铁在草酸中的溶解受化学反应控制,计算的活化能为35.15 k j/mol。

关键词：一水硬铝石解离矿物学浸出磁选

费通试剂引发的甲基异丁烯酸盐接枝到黄麻纤维上的共聚反应

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中国麻作 1997年第3期19卷 46-48,F003页

作者： j.DAS A.k.mohanty B.C.SINGH 冷鹃

Green Approach for <i>In-Situ</i>Growth of CdS Nanorods in Low Band Gap Polymer Network for Hybrid Solar Cell Applications

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Advances in Nanoparticles 2014年第3期3卷 106-113页

作者： Ramil k. Bhardwaj Vishal Bharti Abhishek Sharma Dibyajyoti mohanty Vikash Agrawal Nakul Vats Gauri D. Sharma Neeraj Chaudhary Shilpa jain jitender Gaur kamalika Banerjee Suresh Chand j & S Research and Innovations Delhi India Physics of Energy Harvesting CSIR-National Physical Laboratory New Delhi India Physics of Energy Harvesting CSIR-National Physical Laboratory New Delhi India School of Science India Gandhi National Open University New Delhi India School of Science India Gandhi National Open University New Delhi India

In-situ growth of CdS nanorods (NRs) has been demonstrated via solvothermal, in a low band gap polymer, poly [[4,8-bis[(2-ethylhexyl)oxy] benzo [1,2-b:4,5-b’] dithiophene-2,6-diyl] [3-fluoro-2-[(2-ethylhexyl) carbonyl] thieno [3,4-b] thiophenediyl]] (PTB7). It is a high yielding, green approach as it removes use of volatile and hazardous chemicals such as pyridine as ligand which are conventionally used to synthesize precursors of CdS (NRs). Moreover the solvothermal process is a zero emission process being a close vessel synthesis and hence no material leaching into the atmosphere during the synthesis. The PTB7:CdS nanocomposite has been characterized by SEM, XRD, FTIR, UV-visible spectroscopy techniques. The photoluminescence (PL) spectroscopy study of PTB7 with CdS NRs has shown significant PL quenching by the incorporation of CdS NRs in PTB7;this shows that CdS NRs are efficient electron acceptors with the PTB7. The PTB7:CdS is used as active layer in the fabrication of hybrid solar cells (HSC) as donor-acceptor combination in the bulk heterojunction (BHj) geometry. The HSCs fabricated using this active layer without any additional supporting fullerene based electron acceptor has given power conversion efficiency of above 1%.

关键词： CdS Nanorods PTB7 In-Situ Growth Solvothermal Hybrid Solar Cell

Measurements of dihadron correlations relative to the event plane in Au+Au collisions at√^(S)NN=200 GeV

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Chinese Physics C 2021年第4期45卷 198-241页

作者： H.Agakishiev M.M.Aggarwal Z.Ahammed A.V.Alakhverdyants I.Alekseev j.Alford B.D.Anderson C.D.Anson D.Arkhipkin G.S.Averichev j.Balewski D.R.Beavis N.k.Behera R.Bellwied M.j.Betancourt R.R.Betts A.Bhasin A.k.Bhat H.Bichsel j.Bieleik j.Bielcikova B.Biritz L.C.Bland W.Borowski j.Bouchet E.Braidot A.V.Brandin A.Bridgeman S.G.Brovko E.Bruna S.Bueltmann I.Bunzarov T.P.Burton X.Z.Cai H.Caines M.Calderon de la Barca Sanchez D.Cebra R.Cendejas M.C.Cervantes Z.Chajecki P.Chaloupka S.Chattopadhyay H.F.Chen j.H.Chen j.Y.Chen L.Chen j.Cheng M.Cherney A.Chikanian k.E.Choi W.Christie P.Chung M.j.M.Codrington R.Corliss j.G.Cramer H.j.Crawford S.Dash A.Davila Leyva L.C.De Silvat R.R.Debbe T.G.Dedovich A.A.Derevschikov R.Derradi de Souza L.Didenko P.Djawotho S.M.Dogra X.Dong j.L.Drachenberg j.E.Draper j.C.Dunlop L.G Efimov M.Elnim j.Engelage G Eppley M.Estienne L.Eun O.Evdokimov R.Fatemi j.Fedorisin A.Feng R.G.Fersch P.Filip E.Finch V.Fine Y.Fisyak C.A.Gagliardi D.R.Gangadharan A.Geromitsos F.Geurts P.Ghosh Y.N.Gorbunov A.Gordon O.Grebenyuk D.Grosnick S.M.Guertin A.Gupta W.Guryn B.Haag O.Hajkova A.Hamed L-X.Han j.W.Harris j.P.Hays-Wehle M.Heinz S.Heppelmann A.Hirsch E.Hjort G.W.Hoffmann D.j.Hofiman B.Huang H.Z.Huang T.j.Humanic L.Huo G.Igo P.jacobs W.W.jacobs C.jena F.jin j.joseph E.G.judd S.kabana k.kang j.kapitan k.kauder H.ke D.keane A.kechechyan D.kettler D.P.kikola j.kiryluk A.kisiel V.kizka A.G.knospe D.D.koetke T.kollegger j.konzer I.koralt L.koroleva W.korsch L.kotchenda V.kouchpil P.kravtsov k.krueger M.krus L.kumar P.kurnadi M.A.C.Lamont j.M.Landgraf S.LaPointe j.Lauret A.Lebedev R.Lednicky j.H.Lee W.Leight M.j.LeVine C.Lil L.Li N.Li W.Li X.Li X.Li Y.Li Z.M.Li M.A.Lisa F.Liu H.Liu j.Liu T.Ljubicic W.j.Llope R.S.Longacre W.A.Love Y.Lu E.V.Lukashov X.Luo G.L.Ma Y.G.Mai D.P.Mahapatra R.Majka O.I.Mall L.k.Mangotra R.Manweiler S.Margetis C.Markert H.Masui H.S.Matis Yu.A.Matulenko D.MeDonald T.S.McShane A.Meschanin R.Milner N.G.Minaev S.Mioduszewski A.Mischke M.k.Mitrovski B.mohanty M.M.Mondal B.Morozov D.A.Morozov M.G.Munhoz M Argonne National Laboratory Argonnellinois 60439USA Brookhaven National Laboratory UptonNew York 11973USA University of Califomia BerkeleyCaliformnia 94720USA University of California DavisCalifornia 95616USA University of Califormnia Los AngelesCalifomia 90095USA Universidade Estadual de Campinas Sao PauloBrazil University of Illinois at Chicago ChicagoIlinois 60607USA Creighton University OmahaNebraska 68178USA Czech Technical University in Prague FNSPEPrague11519Czech Republic Nuclear Physics Institute AS CR 25068 Rez/PragueCzech Republic University of Frankfurt FrankfurtGermany Institute of Physics Bhubaneswar 751005India Indian Institute of Technology MumbaiIndia Indiana University BloomingtonIndiana 47408USA Alikhanov Instiute for Theoretical and Experimental Physics MoscowRussia University of jammu Jammu 180001India joint Institute for Nuclear Research Dubna141980Russia kent State University KentOhio 44242USA University of kentucky LexingtonKentucky40506-0055USA Institute of Modern Physics LanzhouChina Lawrence Berkeley National Laboratory BerkeleyCalifornia 94720USA Massachusetts Institute of Technology CambridgeMA 02139-4307USA Mx-Planck-Institut fir Physik MunichGermany Michigan State University East LansingMichigan 48824USA Moscow Engineering Physics Institute Moscow Russia NIkHEF and Utrecht University AmsterdamThe Netherlands Ohio State University ColumbusOhio 43210USA Old Dominion University NorfolkVA23529USA Panjab University Chandigarh 160014India PennsyIvania State University University ParkPennsylvania 16802USA Institute of High Energy Physics ProtvinoRussia Purdue University West LafayetteIndiana 47907USA Pusan National University PusanRepublic of Korea University of Rajasthan Jaipur 302004India Rice University HoustonTexas 77251USA Universidade de Sao Paulo Sao PauloBrazil University of Science&Technology of China Hefei 230026.China Shandong University JinanShandong 250100China Shanghai Institute of Applied Physics Shanghai 201800Chi

Dihadron azimuthal correlations containing a high transverse momentum(pr)trigger particle are sensit-ive to the properties of the nuclear medium created at RHIC through the strong interactions occurring between the traversing parton and the medium,*** measurements revealed a strong modification to di-hadron azimuthal correlations in Au+Au collisions with respect to ptp and d+Au *** modification in-creases with the collision centrality,suggesting a path-length or energy density dependence to the je-quenching *** paper reports STAR measurements of dihadron azimuthal correlations in mid-central(20%-60%)Au+Au collisions at√^(S)NN=200 GeV as a function of the trigger particle's azimuthal angle relative to the event plane,Ф_(s)=|Ф_(t)-ψ_(Ep)|.The azimuthal correlation is studied as a function of both the trigger and associated particle *** subtractions of the combinatorial background and anisotropic flow,assuming Zero Yield At Minimum(ZYAM),are *** correlation results are first discussed with subtraction of the even harmonic(elliptic and quadrangu-lar)flow *** away-side correlation is strongly modifed,and the modification varies withФ_(s),with a double-peak structure for out-of-plane trigger *** near-side ridge(long range pseudo-rapidity△_(η)correla-tion)appears to drop with increasingФ_(s)while the jet-like component remains approximately *** correla-tion functions are further studied with the subtraction of odd harmonic triangular flow background arising from *** is found that the triangular flow,while responsible for the majority of the amplitudes,is not sufficient to explain theφs-dependence of the ridge or the away-side double-peak *** dropping ridge withФ_(s)could be attributed to aФ_(s)-dependent lliptie anisotropy;however,the physics mechanism of the ridge remains an open *** with aФ_(s)-dependent elliptic flow,the away-side correlation structure

关键词： relativistic heavy ion collisions dihadron correlations jet-medium interactions anisotropic flow background event plane