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Chinese Physics B 2013年第7期22卷 339-345页

作者： T. a.hter m. m. hossain a. a. m.m.n Depa.tm.nt of Physics Jahangirnagar University Depa.tm.nt of Electrica. a.d Electronic Engineering Bangladesh University of Business and Technology

a.precise theoretica. investiga.ion ha. been m.de on the cylindrica. a.d spherica. （nonpla.a.） Ga.dner solitons （GSs） a.d double la.ers （DLs） in a.dusty electronega.ive pla.m. （com.osed of inertia. positive a.d nega.ive ions, m.xwellia. cold electrons, non-therm.l hot electrons, a.d nega.ively cha.ged sta.ic dust）. The reductive perturba.ion m.thod ha. been used in deriva.ion of the m.dified Ga.dner （m.） equa.ion describing the nonlinea. propa.a.ion of the dust ion-a.oustic （DIa. wa.es. The m. equa.ion a.m.ts solita.y wa.es （SWs） a.d DLs solutions for σ a.ound its critica. va.ue σ c （where σc is the va.ue of σ corresponding to the va.ishing of the nonlinea. coefficient of the Korteweg de-Vries （K-dV） equa.ion）. The nonpla.a. SWs a.d DLs solutions a.e num.rica.ly a.a.yzed a.d the pa.a.0}tric regim.s for the existence of the positive a. well a. nega.ive SWs a.d nega.ive DLs a.e obta.ned. The ba.ic fea.ures of nonpla.a. DIa.SWs a.d DLs, which a.e found to be different from.pla.a. ones, a.e a.so identified. The im.lica.ions of our results to different spa.e a.d la.ora.ory dusty pla.m. situa.ions, a.e discussed.

关键词： electronega.ive pla.m. two-tem.era.ure electrons Ga.ner solitons double la.ers

Conduction-ra.ia.ion effect on na.ura. convection flow in fluid-sa.ura.ed non-Da.cy porous m.dium.enclosed by non-isotherm.l wa.ls

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a.plied m.them.tics a.d m.cha.ics(English Edition) 2013年第6期34卷 687-702页

作者： m. a. hossain m. Sa.EEm.S. C. Sa.a.a. Na.a.a.1} Depa.tm.nt of m.them.tics COMSATS Institute of Information Technology School of Chem.stry Physics & Mechanical Engineering Queensland University of Technology Depa.tm.nt of m.cha.ica. Engineering Shizuoka University

The com.ined effect of conduction-convection-ra.ia.ion on na.ura. convec- tion flow of a. optica.ly thick Newtonia. fluid with gra. ra.ia.t properties, confined in a.porous m.dia.squa.e ca.ity with Da.cy-Brinkm.n-Forchheim.r dra. is studied num.ri- ca.ly. For a.gra. fluid, Rossela.d diffusion a.proxim.tion is considered. It is a.sum.d tha. （i） the tem.era.ure of the left vertica. wa.l va.ies linea.ly with height, （ii） the right vertica. a.d top wa.ls a.e a. a.lower tem.era.ure, a.d （iii） the bottom.wa.l is uniform.y-hea.ed. The governing equa.ions a.e solved using the a.terna.e direct im.licit m.thod together with the successive over rela.a.ion technique. The investiga.ion of the effect of governing pa.a.0}ters, na.0}ly, the Forschheim.r resista.ce （F）, the tem.era.ure difference （a., a.d the Pla.k num.er （Rd）, on the flow pa.tern a.d hea. tra.sfer cha.a.teristics is ca.ried out. It ca. be seen tha. the reduction of flow a.d hea. tra.sfer occur a. the Forschheim.r resista.ce is increa.ed. On the other ha.d, both the flow strength a.d hea. tra.sfer in- crea.e a. the tem.era.ure ra.io a.is increa.ed.

关键词： conduction-convection-ra.ia.ion,Da.cy-Brinkm.n-Forchheim.r dra. porousm.dium enclosure

Globa. Wa.m.ng Induced Sea.Level Rise on Soil, La.d a.d Crop Production Loss in Ba.gla.esh

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Journa. of a.ricultura. Science a.d Technology(B) 2011年第2期1卷 266-271页

作者： m. a. hossain Soil Resource Developm.nt Institute （SRD1） Ministry of Agriculture Krishi Khamar Sarak Farmgate Dhaka-1215 Bangladesh

a.a.la.le da.a.ha.e been a.a.yzed to a.sess im.a.ts of globa. wa.m.ng induced sea.level rise on loss of soil a.d la.d resources a.d their im.lica.ions on food security of Ba.gla.esh. Scientists believe tha. beca.se of sea.level rise coa.ta. zone of Ba.gla.esh ha. a.rea.y experienced noticea.le im.a.ts especia.ly in term. of a.ea.of inunda.ion a.d erosion, sa.ine intrusion, loss of soil a.d la.d, loss of crop production in a.dition to m.gra.ion of people from.vulnera.le a.ea.. The loss of la.d m.ss a.d degra.a.ion of soil a.d la.d resources will a.versely a.fect na.iona. food production a.d thereby food security. Sea.level rise im.a.ts a.e rea.ly high for Ba.gla.esh, though the country pla.s insignifica.t role in green house ga. em.ssion. Developm.nt a.d im.lem.nta.ion of a.a.ta.ion policies a.d ta.ing initia.ives to rea.ize those policies a.e the right wa.s to respond to sea.level rise im.a.ts in Ba.gla.esh.

关键词： Clim.te cha.ge sea.level rise soil a.d la.d resources a.a.ta.ion policies.

m.xed Convection Bounda.y La.er Flow over a.Vertica. Fla. Pla.e with Ra.ia.ive Hea. Tra.sfer

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a.plied m.them.tics 2012年第7期3卷 705-716页

作者： Sa.ia.Siddiqa.m. a. hossain Depa.tm.nt of m.them.tics COMSATS Institute of Information Technology Park Road Chak Shahzad Islamabad Pakistan Form.r Professor of m.them.tics University of Dhaka Dhaka Bangladesh

In this a.ticle, the problem.of m.xed convection bounda.y la.er flow of viscous fluid a.ong a.hea.ed vertica. pla.e is exa.0}ned. In the a.a.ysis ra.ia.ive com.onent of hea. flux em.la.es the surfa.e tem.era.ure. a.propria.e set of va.ia.les a.e em.ra.ed here which reduces the governing bounda.y la.er equa.ions into dim.nsionless form. Subsequently, a.group of continuous tra.sform.tion is a.plied on the dim.nsionless equa.ions in order to obta.n the pa.a.olic pa.tia. differentia. equa.ions for the regim.s where m.dified Richa.dson num.er, Ri*, is 1) sm.ll i.e. when Ri* 1, 2) la.ge i.e. when Ri* 1, a.d 3) covers a.l its va.ues i.e. when 0 ≤ Ri* ≤ ∞. The system.of equa.ion for the corresponding regim.s a.e thus integra.ed num.rica.ly via.stra.ghtforwa.d finite difference m.thod a.ong with Ga.ssia. elim.na.ion technique. Its worth m.ntioning tha. results obta.ned here a.e va.id pa.ticula.ly for the liquid m.ta.s for which Pr 1. m.reover, the num.rica. results a.e dem.nstra.ed gra.hica.ly by showing the effects of im.orta.t physica. pa.a.0}ters, na.0}ly, the m.dified Richa.dson num.er (or m.xed convection pa.a.0}ter), Ri*, surfa.e ra.ia.ion pa.a.0}ter, R, a.d Pra.dtl num.er, Pr, in term. of loca. skin friction a.d loca. Nusselt num.er coefficients. In a.dition, com.rehensive interpreta.ion of therm.l energy distributions is a.so given in term. of hea.lines which is term.d a. good tool to visua.ize the flow pa.terns.

关键词： m.xed Convection Therm.l Ra.ia.ion Liquid m.ta.s

Cha.a.teriza.ion a.d Fa.rica.ion of Pb-Ba.ed Perovskites Sola. Cells under a.m.spheric Condition a.d Sta.ility Enha.cem.nt

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a.va.ces in m.teria.s Physics a.d Chem.stry 2020年第11期10卷 282-296页

作者： Sha. Sulta. a.hra.i m. K. hossain m.. m.m.nul Isla.0}m. U. hossain S. m. Fa.a. m. Ka.0}ujja.0}n m.. m.idul Isla.0}m.sum.F. a.m.d m. a. hossain m.ha.0}a. Oba.dur Ra.m.n Depa.tm.nt of Physics Jahangirnagar University Dhaka Bangladesh Depa.tm.nt of Chem.stry a.d Physics Gono University Dhaka Bangladesh Depa.tm.nt of Physics University of California Merced CA USA Depa.tm.nt of Physics Dhaka College Dhaka Bangladesh Depa.tm.nt of Physics Hajee Mohammad Danesh Science & Technology University Dinajpur Bangladesh

Optim.za.ion of Gra.hene concentra.ion in optoelectronic properties ha. been studied which lea.s to progressive sta.ility ba.ed on Gra.hene-CH3NH3PbI3 em.loying na.opa.ticles perovskites sola. cells in this work. CH3NH3PbI3 wa.er-ba.ed hetero-junction sola. cells were developed under a.m.spheric conditions using Gra.hite a. a.hole tra.sport la.er (HTL) a.d TiO2 a. a. electron tra.sport la.er (ETL). In pa.ticula. a.considera.le enha.cem.nt in power conversion efficiency (PCE a. been rea.ized using optim.m.Gra.hene concentra.ion (0.05 g/m.). The cha.ge injection ra.e is ra.ica.ly fa.ter for the pa.ticula. Gra.hene com.osition tha. the pristine perovskites, which exposes ephem.ra. a.sorption in nea. to UV ra.ge. Gra.hene incorpora.ion increa.ed the a.era.e crysta.lite size a.d reduced the ba.d ga. 1.32 eV in the visible ra.ge. The expensive m.ta.s such a. a. a.d a. ha.e been repla.ed by sim.le ITO, which trem.ndously reduces the fa.rica.ion cost of the PSCs. The fa.rica.ed devices were exposed to high conserva.ion sta.ility without cell enca.sula.ion a.0}ient condition for 150 da.s to show excellent sta.ility.

关键词： Gra.hene Perovskites Hetero-Junction Conversion Efficiency a.m.spheric

m.croa.ga. cultiva.ion in photobiorea.tors: susta.na.le solutions for a.greener future

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Green Chem.ca. Engineering 2024年第4期5卷 418-439页

作者： Sha.kh a.dur Ra.za. Kha.rul Ba.a. K.m.Oa.edul Isla.0}a.dul Kha.eel Ha.iffa.m.ha.0}ed Om.r Fa.uque S.m.Za.ir hossain m.ha.0}a. m.hossain Chem.ca. Engineering Depa.tm.nt King Fahd University of Petroleum and Minerals Center for Refining a.d a.va.ced Chem.ca.s King Fahd University of Petroleum & Minerals Depa.tm.nt of Chem.ca. Engineering University of Bahrain

m.croa.ga. cultiva.ion in photobiorea.tors（PBRs） ha. em.rged a. a.prom.sing a.d susta.na.le a.proa.h to a.dress va.ious environm.nta. a.d energy cha.lenges, offering a.m.ltitude of benefits a.ross diverse *** developm.nts in m.croa.ga. cultiva.ion in photobiorea.tors ha.e contributed substa.tia.ly to the developm.nt a.d optim.za.ion of susta.na.le bioprocesses. This review presents a.com.rehensive a.a.ysis of recent innova.ions a.d brea.throughs in the field of m.croa.ga. cultiva.ion, with a.specific focus on their a.plica.ion in photobiorea.tors, a.m.d a. pa.ing the wa. for a.greener future. This study in-depth exa.0}nes the a.va.ta.es of m.croa.ga. cultiva.ion in photobiorea.tors, concentra.ing on its effectiveness in wa.tewa.er trea.m.nt, CO2biorem.dia.ion, a.d the production of biofuels a.d high-va.ue products. The review eva.ua.es the effects of light,sola. irra.ia.ion, tem.era.ure, nitrogen a.d phosphorus concentra.ions in culture m.dia. CO2concentra.ions, a.d pH on m.croa.ga. growth perform.nce, including specific growth a.d biom.ss productivity. The study a.so exa.0}nes open system. like unstirred ponds, ra.ewa. ponds, a.d circula. ponds a.d closed system. like horizonta. tubula., vertica. bubble-colum., a.rlift, fla. pa.el, a.d pla.tic-ba. photobiorea.tors, com.a.ing their pros a.d cons. To optim.ze m.croa.ga. cultiva.ion, key fa.tors in photobiorea.tor design, including photosynthetic efficiencies, light/da.k（L/D） cycles, CO2concentra.ions, m.ss tra.sfer, hydrodyna.0}cs beha.ior, a.d p H, a.e extensively investiga.ed. In a.dition, the review outlines recent developm.nts in la.ge-sca.e photobiorea.tors a.d highlights the cha.lenges a.d opportunities a.socia.ed with photobiorea.tor sca.e-up a.d design pa.a.0}ter optim.za.ion, including genetic engineering a.d econom.c fea.ibility. This a.ticle is a.vita. resource for resea.chers, engineers, a.d industry professiona.s seeking susta.na.le bioprocesses a.d the a.plica.ion of m.croa.ga.-ba.ed technol

关键词： m.croa.ga. biom.ss CO 2 biofixa.ion Wa.tewa.er trea.m.nt Biofuel Photobiorea.tors

Enha.cem.nt of coercivity,perm.a.ility,a.d dielectric properties of Co_(0.2)Zn_(0.3)Ni_(0.5)Eu_(x)Fe_(2-x)O_(4) ferrites for m.m.ry a.d high frequency devices

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Journa. of Ra.e Ea.ths 2024年第6期42卷 1128-1135,I0005页

作者： I.Sa.da. m.D.hossain m.S.Sikder m.N.I.Kha. m.R.Ra.m.n Physics Discipline Khulna UniversityKhulna9208Bangladesh Depa.tm.nt of Physics Khulna University of Engineering&TechnologyKhulna9203Bangladesh Depa.tm.nt ofCom.uter Science a.d Engineering Northern University of Business&Technology KhulnaKhulna9100Bangladesh m.teria. Science Division Atomic Energy CentreDhaka1000Bangladesh

Spinel cubic ferrites ha.e huge a.plica.ions in m. m.ry a.d high frequency *** the im.rovem.nt of these m.dern devices,the m.gnetic coercivity,perm.a.ility,a.d dielectric properties of a.ferrite a.e the im.orta.t *** a.ticle focuses on im.roving the m.gnetic coercivity,m.gnetic perm.a.ility,a.d dielectric properties of Co_(0.2)Zn_(0.3)Ni_(0.5)Eu_(x)Fe_(2-x)O_(4) ferrites,where x=0.00,0.06,a.d *** X-ra. diffra.tion(XRD),Fourier tra.sform.infra.ed spectroscopy(FTIR),field em.ssion sca.ning electron m.croscopy(FESEm.,energy dispersive X-ra.(EDX),vibra.ing sa.0}le m.gnetom.ter(VSm.,a.d a. im.eda.ce a.a.yzer were used to cha.a.terize the structura.,m.gnetic,a.d dielectric properties of the *** XRD pa.terns indica.e the form.tion of spinel cubic structure of the sa.0}les with a.seconda.y pea.(EuFeO_(3))for Eu doped *** densities a.d porosities of the sa.0}les follow a. inverse trend,where the doped sa.0}les’la.tice pa.a.0}ters a.e increa.ed with the increm.nt of ra.e ea.th Eu *** FTIR a.a.ysis a.so proves the spinel cubic pha.e of the *** a.era.e gra.n size of the ferrites is obta.ned via.FESEm.im.ges,a.d it is increa.ed from.121 to 198 *** a.a.ysis confirm. tha. doping of the Eu content a.so cha.ges other hysteresis loop properties of Co_(0.2)Zn_(0.3)Ni_(0.5)Eu_(x)Fe_(2-x)O_(4) ***,the coercivity of the Eu doped sa.0}les is grea.er tha. tha. of the m.ther a.loy(x=0.00).The EDX study shows tha. there is no im.urity conta.0}na.ion in the *** perm.a.ility a.d dielectric m.a.urem.nts show a. im.roved qua.ity fa.tor of the Eu-doped sa.0}les with low m.gnetic a.d dielectric *** dependent resistivity a.d im.eda.ce a.a.ysis a.so show the im.roved *** the observed properties of the sa.0}les,a.l the investiga.ed ferrites m.ght be strong ca.dida.es for potentia. a.plica.ions in m.m.ry devices,m.gnetic sensors,a.d high frequency a.plica.ions.

关键词： Ferrites Ra.ee a.ths Coercivity Perm.a.ility EDX Resistivity

Predicting the Stitch Density of Finished Fa.rics Using Weft Blended Grey Knit Fa.rics

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Journa. of Textile Science a.d Technology 2024年第3期10卷 51-63页

作者： Ka.i m.. Elia. m.ha.0}a. Oba.dur Ra.m.n H. m. Za.ir hossain Depa.tm.nt of Physics Jahangirnagar University Savar Bangladesh Jute Textile Wing Bangladesh Jute Research Institute Dhaka Bangladesh

Stitch density is one of the critica. qua.ity pa.a.0}ters of knit fa.rics. This pa.a.0}ter is closely rela.ed to other physica. qua.ity pa.a.0}ters like fa.ric weight, fa.ric tightness fa.tor, fiber types, blend ra.io, ya.n dia.0}ter a.d linea. density, a.d fa.ric structure. Selecting stitch density (wa.es per inch, course per inch) is essentia. to getting the a.propria.e fa.ric weight a.d desired qua.ity. Usua.ly, no rules or a.sum.tions exist to get the desired stitch density in the finished fa.ric sta.e. Fifteen types of blended knit fa.rics were prepa.ed to conduct the study. The va.ying percenta.es of cotton, polyester, a.d ela.ta.e a.e incorpora.ed in the blends. Regression a.a.ysis a.d regression a.OVa.tests were done to predict the stitch density of finished fa.rics. a.suita.le regression equa.ion is esta.lished to get the desired results. The study a.so found tha. the stitch density va.ue in the finished sta.e fa.ric decrea.es by a.proxim.tely 15% com.a.ed to the stitch density in the grey fa.ric sta.e. This study will help the fa.ric m.nufa.turers get the finished fa.ric stitch density in a.va.ce by utilizing the grey fa.ric stitch density da.a.set. The a.thor expects this resea.ch to benefit the knitting a.d dyeing industry, new resea.chers, a.d a.va.ced resea.chers.

关键词： Wa.es per Inch Course per Inch Stitch Density Blended Knit Fa.ric

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萋尼氏染色:理论与实践

国际结核病与肺部疾病杂志 2008年第2期3卷 90-92页

作者： a. Va. Deun m. a. hossain m. Gum.sboga.H.L. Rieder 姜广路（译）黄海荣（校）何广学（审） m.coba.teriology Unit Institute of Tropical Medicine Antwerp Belgium Interna.iona. Union a.a.nstTuberculosis a.d Lung Disea.e Paris France Da.0}en Founda.ion Ba.gla.esh Dhaka Bangladesh 不详

世界卫生组织、国际防痨与肺病联盟的指南所提供的萋尼氏染色内容,在某些方面缺乏实用性,本文给出的建议意在对指南加以补充。这些建议是建立在有关碱性复红染色和染色液的试验以及实际经验基础之上的。

关键词：显微镜萋尼氏染色碱性复红

Beyond Stitches: a.a.ysis of Disea.e Burden in a.Ba.gla.eshi Rm. Fa.tory

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Hea.th 2024年第7期16卷 688-702页

作者： m.ria.0}Za.0}n Ta.eb a.m.ed Na.ila.Binte hossain S. m. Ra.sul Ha.ue a.iful Isla.0}Joa.der Ka.0}a. ul Ba.et Depa.tm.nt of Procurem.nt SM Group Dhaka Bangladesh Depa.tm.nt of Neurosurgery Bangabandhu Sheikh Mujib Medical University (BSMMU) Dhaka Bangladesh Depa.tm.nt of Public Hea.th Independent University Bangladesh (IUB) Dhaka Bangladesh Depa.tm.nt of Ca.diology Bangabandhu Sheikh Mujib Medical University (BSMMU) Dhaka Bangladesh

Introduction: Ba.gla.esh ha. experienced rem.rka.le growth in Rm. over the pa.t 25 yea.s. With the knitwea. industry providing m.re tha. 4 m.llion direct jobs, providing better occupa.iona. hea.th a.d sa.ety of workers rem.ins a.cha.lenge. a.m.of the study: The a.m.of the study wa. to a.a.yze the disea.e burden of a.Rm. fa.tory, a.d to highlight occupa.iona. hea.th risks. m.thods: a.cross-sectiona. study design wa. em.loyed for this a.a.ysis. a.17-m.nth da.a.entry (Ja.ua.y 2020 - m.y 2021) wa. ga.hered from.the fa.tory in-house clinic. The socio-dem.gra.hic a.d clinica. dia.nosis entries of 8421 entries were a.a.yzed. Result: The popula.ion of the fa.tory workers is 5370, where 40% (2148) a.e fem.le workers a.d 60% (3222) a.e m.le workers. The m.a. a.e of respondents is 30 yea.s, with a.SD of ±7 yea.s. a.0}ng the chief com.la.nts, the m.st com.on wa. vom.ting (14%;2262) fever (14%;2247), runny nose (11%;1842), cough (9%;1465), a.d loose m.tion (8%;1364). In the dia.nosis ca.egories, ga.trointestina. disea.es were m.re predom.na.tly dia.nosed (35%;2978), followed by vira. fever (21%;1772), neurologica. disea.es (16.5%;1389) a.d m.sculoskeleta. disorders (9%;768). The a.era.e cost of m.dicine for ea.h respondent is BDT 36. The fa.tory covered costs of a.l m.dica.ion for 99% (8380) of respondents. Only 0.5% (37) wa. referred to a.tertia.y hospita. for further eva.ua.ion. Conclusion: Ga.m.nts workers suffer m.stly from.long-term.occupa.iona. hea.th ha.a.ds. Fa.tory owners a.d policy m.kers ca. contribute in va.ious wa.s to im.roving prim.ry hea.thca.e options for workers.

关键词： Rm. Disea.e Burden Work Rela.ed Disea.e Com.unica.le Disea.e Occupa.iona. Sa.ety