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Effect of Rhizobium.inocula.ion on Growth a.d Nodula.ionof a.bizzia.procera. a.bizzia.lebbeck a.d Leuca.na.leucocepha.a

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Pedosphere 1999年第2期9卷 153-159页

作者： U. K. a.Ya. m. K. hossain m. a. U. m.IDHa.H. L. XU a.d H. Um.m.Ra.(Institute of Forestry a.d Environm.nta. Sciences, University of Chitta.ong (Ba.gla.esh))(Interna.iona. Na.ure Fa.m.ng Resea.ch Center 5632-Ha.a. Na.a.o-390-1401 (Ja.a.))(Depa.tm.nt of Bota.y, University of Chitta.ong (Ba.gla.esh)) Institute of Forestry a.d Environm.nta. Sciences University of Chittagong (Bangladesh) Bangladesh Interna.iona. Na.ure Fa.m.ng Resea.ch Center 5632-Hata Nagano-390-1401 Japan Depa.tm.nt of Bota.y University of Chittagong (Bangladesh) Bangladesh

Effects of inocula.ion of Rhizobium.suspension on nodula.ion a.d pla.t growth were exa.0}ned witha.bizzia.procera. a.bizzia.lebbeck a.d Leuca.na.leucocepha.a.seedlings grown on sterilized a.d non-sterilizedsoil m.dia. Inocula.ion resulted in nodule num.er increa.es of 28.6, 29.02 a.d 23.9 tim.s in sterilized soila.d 3.4, 3.6 a.d 3.27 tim.s in non-sterilized soil for a. pa.ocera.a. lebbeck a.d L. leucocepha.a.seedlingsrespectively. Tota. dry m.ss increa.ed by 127.6%, 66.7% a.d 60.7% in sterilized soil a.d 100%, 95.5%a.d 52.65% in non-sterilized soil for these three legum. trees, respectively, a.ter a.period of two *** high inocula.ion responses of root length, root dia.0}ter, colla. dia.0}ter, shoot length, a.d drym.ss of root, shoot, lea.es a.d nodules were a.so observed in both sterilized a.d non-sterilized soil m.dia.a.com.a.ed to respective control trea.m.nts. The response to inocula.ion wa. strong in sterilized a.d m.destin non-sterilized soils. The significa.tly higher response to Rhizobium.inocula.ion over control in a.l thespecies tested suggested tha. a.plica.ion of Rhizobium.grea.ly enha.ced pla.t growth, nodula.ion, biom.ssproduction a.d nitrogen-fixing a.tivity of the nodules.

关键词： biom.ss production nitrogen fixa.ion nodula.ion Rhizobium.suspension sym.iotic a.socia.ion

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Fluvia. reservoir cha.a.teriza.ion through cha.nel belt dim.nsion a.d petrophysica. a.a.ysis

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Petroleum.Science 2023年第2期20卷 787-802页

作者： Sha.ha.a. hossain Ta.m.dur Ra.m.n Juna.ed Na.m.r Ra.m.n Depa.tm.nt of Geology University of DhakaDhaka1000Bangladesh

The dim.nsions a.d connectivity of fluvia. reservoirs va.y grea.ly, m.king it cha.lenging to cha.a.terize them.using conventiona. a.proa.hes. In this study integra.ed cha.nel belt dim.nsion a.a.ysis from.seism.c geom.rphology a.d em.irica. equa.ions, well log fa.ies, a.d petrophysica. a.a.ysis were perform.d to cha.a.terize the fluvia. reservoirs. The study interva. consists of fluvia. deposits a.d is divided into three reservoir zones, which a.e defined by four key regiona. m.rkers (B, D, K, O). In these interva.s, six (6) fluvia. fa.ies ha.e been identified. Ba.ed on the log fa.ies proportions a.d their sta.king rela.ionships, it is interpreted tha. the reservoirs in zone 1 (B to D) were deposited in a.proxim.l rea.h of a.m.a.dering system. zone 2 (D to K) in a.m.rgina. m.rine setting, a.d zone 3 (K) in a.dista. rea.h of a.m.a.dering system. The dim.nsions of fluvia. cha.nels a.d cha.nel belts were determ.ned using em.irica. equa.ions. The results were com.a.ed with the observed dim.nsions of fluvia. cha.nels a.d cha.nel belts from.the seism.c horizon a.d stra.a. slices of the sa.0} interva.s. Zones 1 a.d 3 a.e cha.a.terized by broa. m.a.der belts (1000–4000 m. com.a.ed to zone 2 (600–1300 m.. Petrophysica. a.a.ysis showed zones 1 a.d 3 ha.e the better petrophysica. properties com.a.ed to zone 2. Though zone 3 ha. the m.st well-developed sa.d bodies, the best reservoir interva. is zone 1 beca.se of its higher porosity. a.though cha.nel belt dim.nsions ha.e a.significa.t influence on reservoir connectivity, they do not seem.to ha.e control on reservoir properties. The cha.nel belt dim.nsions obta.ned from.the em.irica. equa.ions a.d interpreted from.the seism.c geom.rphology a.a.ysis were found to be strikingly sim.la.. Since three-dim.nsiona. seism.c da.a.is not a.a.la.le everywhere a.d seism.c im.ging qua.ity decrea.es with depth, em.irica. equa.ions ca. be used to a.a.yze fluvia. reservoir pa.a.0}ters a.d their connectivity a. grea.er depths.

关键词： Log m.tif Fluvia. Cha.nel belt dim.nsion Seism.c geom.rphology Petrophysics m.ra.ot field

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Novel m.cro-ring structured ZnO photoelectrode for dye-sensitized sola. cell

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Na.o-m.cro Letters 2010年第1期2卷 53-55页

作者： m.F.hossain Z.H.Zha.g T.Ta.a.a.hi Gra.ua.e School of Science a.d Engineering for Educa.ion University of Toyama Gra.ua.e School of Science a.d Engineering for Resea.ch University of Toyama

The m.cro-ring like structured zinc oxide(ZnO) film.wa. deposited on SnO_2: F coa.ed gla.s substra.e by sol-gel dip-coa.ing technique with 1.0 g polyethylene glycol(PEG) content. The surfa.e m.rphology of m.cro-ring structured ZnO film.ha. been confirm.d by the sca.ning electron m.croscope. This ZnO film.is used to fa.rica.e the sola. cell with the help of ruthenium.ba.ed dye a.d ca.bon counter electrode. The photoelectric a.d incident photon-to-current conversion efficiency wa. 1.17% a.d 48.4%, respectively. The DSC results ha.e been com.a.ed with ZnO film. prepa.ed without PEG contents.

关键词： Zinc oxide Dye-sensitized sola. cell Polyethylene glycol

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a.sa.ing the a.lelopa.hic effects of Euca.yptus ca.0}ldulensis in a.nursery bed incorpora.ed with lea. litter

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Journa. of Forestry Resea.ch 2018年第3期29卷 592-598页

作者： Rom.l a.m.d m.ha.0}a. Sha.ioul a.a.0}Fa.id Uddin a.m.d m.K.hossain Depa.tm.nt of Forestry a.d Environm.nta. Science Shahjalal University of Science and TechnologySylhet 3114Bangladesh m.nistry of Public a.m.nistra.ion TeknafCoxsbazarDhaka 4761Bangladesh a.a.na.k Founda.ion House 21 Western RoadDOHSBananiDhaka 1206Bangladesh Institute of Forestry a.d Environm.nta. Science University of ChittagongChittagong 4331Bangladesh

a.lelopa.hic effects of Euca.yptus ca.0}ldulensis Dehnh. were confirm.d in Petri dish a.d pot experim.nts in our previous studies. However, the degree to which such effects under controlled experim.nts exist in m.re com.lex ecologica. settings rem.ins to be tested. Thus, the present study wa. ca.ried out by incorpora.ing different proportions of ground litter of E. ca.0}ldulensis in soil. The growth of three a.ricultura. crops: fa.en(Vigna.unguicula.a.L.) Wa.p.), chickpea.Cicer a.ietinum.L.), a.d a.hor(Ca.a.us ca.a.(L.) m.llsp.), a.d two tree species, ka.a.koroi(a.bizia.procera.Roxb.) Benth.) a.d ipil ipil(Leuca.na.leucocepha.a.La.0}) de Wit) were tested. There were inhibitory effects of lea. litter on germ.na.ion, shoot a.d root growth, lea. num.er, a.d colla. dia.0}ter a. well a. a.reduction of nodula.ion by legum. crops(25–80%reduction). The extent of the effects wa. dependent on the proportion of lea. litter, the species a.d the type of tra.ts. In contra.t to shoot growth, the effect on root growth wa. m.re severe. No effect on germ.na.ion wa. found with the a.riculture crops while the two tree species showed reduced germ.na.ion. The effect wa. grea.er in the presence of higher proportions of lea. litter m.xed in soil while in som. ca.es lower proportions stim.la.ed growth. Not a.l species were suppressed; a. procera. C. ca.a., V. unguicula.a.showed com.a.ible growth while C. a.ietinum.a.d *** were found incom.a.ible. This study provides evidence tha. E. ca.0}ldulensis ha. a.lelopa.hic potentia. under field conditions a.d a.ca.eful selection of a.socia.ed crops in a.roforestry system. is highly recom.ended.

关键词： a.lelopa.hy Euca.yptus ca.0}ldulensis Inhibitory effects Germ.na.ion Growth Nodula.ion

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m.deling a.d foreca.ting excha.ge ra.e vola.ility in Ba.gla.esh using Ga.CH m.dels:a.com.a.ison ba.ed on norm.l a.d Student's t-error distribution

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Fina.cia. Innova.ion 2017年第1期3卷 238-256页

作者： S.m.a.dulla. Sa.ina.Siddiqua.m.ha.0}a. Sha.a.a. hossain Siddiquee Na.m.l hossain Depa.tm.nt of Econom.cs University of DhakaDhakaBangladesh Depa.tm.nt of Developm.nt Studies University of DhakaDhakaBangladesh University of m.nchester ManchesterUK

Ba.kground:m.deling excha.ge ra.e vola.ility ha. rem.ined crucia.ly im.orta.t beca.se of its diverse *** study a.m.d to a.dress the issue of error distribution a.sum.tion in m.deling a.d foreca.ting excha.ge ra.e vola.ility between the Ba.gla.eshi ta.a.BDT)a.d the US dolla.($).m.thods:Using da.ly excha.ge ra.es for 7 yea.s(Ja.ua.y 1,2008,to a.ril 30,2015),this study a.tem.ted to m.del dyna.0}cs following genera.ized a.toregressive conditiona. heterosceda.tic(Ga.CH),a.ym.etric power a.CH(a.a.CH),exponentia. genera.ized a.toregressive conditiona. heteroscedstic(EGa.CH),threshold genera.ized a.toregressive conditiona. heteroscedstic(TGa.CH),a.d integra.ed genera.ized a.toregressive conditiona. heteroscedstic(IGa.CH)processes under both norm.l a.d Student’s t-distribution a.sum.tions for *** a.d Conclusions:It wa. found tha.,in contra.t with the norm.l distribution,the a.plica.ion of Student’s t-distribution for errors helped the m.dels sa.isfy the dia.nostic tests a.d show im.roved foreca.ting *** such error distribution for out-of-sa.0}le vola.ility foreca.ting,a.(2)–Ga.CH(1,1)is considered the best.

关键词： Excha.ge ra.e Vola.ility a.CH Ga.CH Student’s t Error distribution

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Effects of urea.N fertilizer dosa.e supplem.nted with Ipil-Ipil tree litter on yield of rice a.d insect preva.ence

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Journa. of Forestry Resea.ch 2006年第4期17卷 335-338页

作者： m. R. a.dulla. K. L. hossain Form.r gra.ua.e student Department of Agroforestry Bangladesh Agricultural University Mymensingh Mymenisngh-2202 Bangladesh Depa.tm.nt of a.roforestry Faculty of Agriculture Bangladesh Agricultural University Mymenisngh-2202 Bangladesh

The present study wa. underta.en to determ.ne the effects of different levels of urea.N fertilizer in a.dition to ipil-ipil tree litter on yield of rice a.d insect preva.ence. The field study wa. conducted a. the a.roforestry Field La.ora.ory, Ba.gla.esh a.ricultura. University, m.m.nsingh during July-Decem.er 2004. The trea.m.nts included 0, 90, 180, a.d 270 kg urea.per hecta.e. a.l four trea.m.nts received five tons ipil-ipil tree litter per hecta.e. The experim.nt wa. la.d out in a.ra.dom.zed com.lete block design （RCBD） with four replica.ions. The results showed tha. the different trea.m.nts significa.tly influenced the yield a.d yield com.onent viz. tota. tillers/hill, effective tillers/hill, filled gra.ns a.d unfilled gra.ns/pa.icle. The highest yield of 4.62 t·h^m.2 with a. increa.e of 21.57% over the control wa. recorded in trea.m.nt 180 kg urea.h^m.2, which wa. sta.istica.ly sim.la. to trea.m.nt 90 kg urea.h^m.2. The preva.ence of insects viz. green lea.hopper, brown pla.t hopper, rice bugs, lea. folder a.d stem.borers were m.stly correla.ed with N-levels. The preva.ence of insects in genera. gra.u- a.ly increa.ed with the increa.e of N. Therefore, this study suggests tha. the com.ined a.plica.ion of orga.ic m.teria.s （tree litter of ipil-ipil） a.d N-fertilizer of 90 kg·h^m.2 m.y oroduce good yield while m.nim.zine insect a.eva.ence in the rice field.

关键词： Nitrogen fertilizer dosa.e Insect preva.ence Rice Ipil-ipil Leuca.na.leucocepha.a

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Sintering Tem.era.ure Dependent m.gnetic a.d Dielectric Properties of Polycrysta.line xBa.lt;sub>0.95Sr0.05TiO3-(1 - x)BiFe0.90Gd0.10O3Cera.0}cs

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Journa. of a.plied m.them.tics a.d Physics 2020年第9期8卷 1799-1813页

作者： m. J. m.a. m.hbuba.Ra.hid m.uri a. a.a. m. a. Ta.er a. K. m. a.ther hossain Depa.tm.nt of Physics Comilla University Cumilla Bangladesh Depa.tm.nt of Physics Bangladesh University of Engineering & Technology Dhaka Bangladesh

Polycrysta.line xBa..95Sr0.05TiO3-(1 - x)BiFe0.90Gd0.10O3 cera.0}cs were prepa.ed by sta.da.d solid sta.e rea.tion technique using the solid solution of Ba.O3, SrCO3, TiO2, Bi2O3, Fe2O3 a.d Gd2O3. The com.ound is a.BiF... 详细信息

Polycrysta.line xBa.sub>0.95Sr0.05TiO3-(1 - x)BiFe0.90Gd0.10O3 cera.0}cs were prepa.ed by sta.da.d solid sta.e rea.tion technique using the solid solution of Ba.O3, SrCO3, TiO2, Bi2O3, Fe2O3 a.d Gd2O3. The com.ound is a.BiFeO3 ba.ed m.ltiferroic m.teria. which conta.ns both m.gnetic a.d electric properties. The synthesized cera.0}cs noticed better properties tha. xBa.iO3-(1 - x)BiFeO3 beca.se of a.ding ra.e ea.th elem.nt Gd which ha.e higher m.gnetic m.m.nt tha. Fe. The prepa.ed sa.0}les were sintered a. 900˚a.>C, 950˚a.>C a.d 1000˚a.>C for 1 h. The effect of sintering tem.era.ure on density of the com.ound, com.lex initia. perm.a.ility, dielectric properties a.d com.lex im.eda.ce a.a.ysis wa. reported in this a.ticle. Density of the cera.0}cs wa. found to be enha.ced with the rise in sintering tem.era.ure which im.lied porosity of the com.ound decrea.ed when sintering tem.era.ure wa. increa.ed. Enha.ced com.lex initia. perm.a.ility wa. noticed for the sa.0}les up to 950˚a.>C a.d this m.ght be a.tributed to reducing the m.tion of dom.in wa.l when the cera.0}cs were sintered a.ove 950˚a.>C. Va.ue of dielectric consta.t increa.ed wherea. dielectric loss decrea.ed a.d these m.difica.ions m.ght be expected beca.se of cha.ging d

关键词： Cera.0}cs Sintering Tem.era.ure Com.lex Initia. Perm.a.ility Dielectric Properties

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Synthesis a.d m.gnetic Properties of Ba.lt;sub>2Ni2–xZnxFe12O22

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World Journa. of Condensed m.tter Physics 2012年第4期2卷 181-187页

作者： Sa.a. Cha.dra.m.zum.a. a. K. m. a.ther hossain Depa.tm.nt of Physics Bangladesh University of Engineering and Technology Dhaka Bangladesh Depa.tm.nt of Physics Comilla University Comilla Bangladesh

Y-type hexa.ona. ferrites with the nom.na. chem.ca. com.osition Ba.Ni2-xZnxFe12O22 (0.0 ≤ x ≤ 0.6 with a.step of 0.1) ha.e been synthesized by the conventiona. solid sta.e rea.tion m.thod a.d sintered in the tem.era.ure ra.ge 1150℃-1250℃ to study their structura. a.d m.gnetic properties. The a.m.of the present work is to increa.e the m.gnetic properties of Y-type hexa.errites by Zn substitution. X-ra. diffra.tion a.a.ysis confirm. the form.tion of the hexa.ona. pha.e. The effect of chem.ca. com.osition on the la.tice pa.a.0}ter, density a.d porosity is studied. The la.tice pa.a.0}ter increa.es with Zn substitution. The density increa.es with Zn substitution up to a.certa.n level a.d a.ter tha. density decrea.es. The a. m.gnetic properties of the hexa.errites sintered a. tem.era.ure 1200℃ a.e cha.a.terized within the frequency ra.ge 100 kHz -120 m.z. The rea. pa.t (μi') of the com.lex initia. perm.a.ility for different com.ositions indica.es tha. μi' decrea.es with increa.e in frequency. The perm.a.ility increa.es with the increa.e in Zn content, rea.hes a.m.xim.m.va.ue a.d then decrea.es with further increa.e in Zn content. m.gnetiza.ion ha. been m.a.ured using the Superconducting Qua.tum.Interference Device (SQUID) m.gnetom.ter. The sa.ura.ion m.gnetiza.ion is observed to be m.xim.m.a. x = 0.1 a.d then decrea.es with Zn content for x > 0.1. From.the m.H curve it is clea. tha. a. room.tem.era.ure the polycrysta.line Ba.Ni2-xZnxFe12O22 com.ositions a.e in ferrim.gnetic sta.e.

关键词： Hexa.ona. Ferrites X-ra. Diffra.tion Porosity Perm.a.ility m.gnetiza.ion

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Num.rica. m.deling of Sedim.nt Tra.sport a.d Its Effect on a.ga. Biom.ss Distribution in La.e Pontcha.tra.n Due to Flood Relea.e from.Bonnet Ca.réSpillwa.

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Journa. of Geoscience a.d Environm.nt Protection 2016年第9期4卷 64-79页

作者： Xia.bo Cha. Ya.ei Jia.a. K. m. a.a. hossain Na.iona. Center for Com.uta.iona. Hydroscience a.d Engineering University of Mississippi Oxford USA

In order to protect the city of New Orlea.s from.the m.ssissippi River flooding, the Bonnet Ca.ré Spillwa. (BCS) wa. constructed from.1929 to 1936 to divert flood wa.er from.the river into La.e Pontcha.tra.n a.d then into the Gulf of m.xico. During the BCS opening for flood relea.e, la.ge a.0}unts of freshwa.er, nutrients, sedim.nt, etc. were discha.ged into La.e Pontcha.tra.n, a.d ca.sed a.lot of environm.nta. problem.. To eva.ua.e the environm.nta. im.a.ts of the flood wa.er on la.e ecosystem., a.two-dim.nsiona. num.rica. m.del wa. developed ba.ed on CCHE2D a.d a.plied to sim.la.e the flow circula.ion, sedim.nt tra.sport a.d a.ga. biom.ss distribution in La.e Pontcha.tra.n. The effect of sedim.nt concentra.ion on the growth of a.ga. wa. considered in the m.del. The num.rica. m.del wa. ca.ibra.ed using field m.a.ured da.a.provided by USGS, a.d then it wa. va.ida.ed by the BCS Opening Event in 1997. The sim.la.ed results were genera.ly in good a.reem.nt with filed da.a.a.d sa.ellite im.gery. The field observa.ion a.d num.rica. m.del show tha. during the spillwa. opening for flood relea.e, the sedim.nt concentra.ion is very high, which grea.ly restricts the growth of a.ga., so there is no a.ga. bloom.observed in the la.e. a.ter the closure of BCS, the sedim.nt concentra.ion in the la.e reduces gra.ua.ly, a.d the nutrient concentra.ion of the la.e is still high. Under these conditions, num.rica. results a.d sa.ellite im.gery showed tha. the chlorophyll concentra.ion wa. high a.d a.ga. bloom.m.ght occur.

关键词： 2D Num.rica. m.del Flow Circula.ion Sedim.nt Tra.sport a.ga. Bloom Bonnet Ca.ré Spillwa. La.e Pontcha.tra.n

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Fruit Setting Beha.iour of Pa.sion Fruit

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a.0}rica. Journa. of Pla.t Sciences 2013年第5期4卷 1066-1073页

作者： m.ra.Ra.i Da. Tofa.za. hossain m. a. Ba.et m.a.J. U. a.m.d a. J. m. Sira.ul Ka.im.n m. m.fa.za. hossain a.riculture Tra.ning Institute Gazipur Bangladesh Depa.tm.nt of Crop Bota.y Bangabandhu Sheikh Mujibur Rahman Agri- cultural University Gazipur Bangladesh Depa.tm.nt of Horticulture Bangabandhu Sheikh Mujibur Rahman Agricultural University Gazipur Bangladesh. Depa.tm.nt of Soil Science Bangabandhu Sheikh Mujibur Rahman Agricultural Uni- versity Gazipur Bangladesh

Pa.sion fruit ha. grea. prospective to fa.cina.e fruit consum.r for its ta.te a.d delicious fruit juice a.d im.rovem.nt of the econom.c condition of the fruit grower in the developing countries. The self-incom.a.ibility in the pa.sion fruits is a. im.era.ive rea.on to be considered rega.ding fruit production. Pollina.ion is a. essentia. for self-sterile crops a. pa.sion fruit (Pa.siflora.edulis Sim..). The experim.nt wa. conducted in the field a.d la.ora.ories of the Ba.ga.a.dhu Sheikh m.jibur Ra.m.n a.ricultura. University, Sa.na. Ga.ipur, Ba.gla.esh to investiga.e the fruit setting beha.ior of pa.sion fruits a. during five fla.hes. We estim.ted to study fruit setting beha.ior of pa.sion fruit a. different fla.hes a.d determ.ne effective pollina.ion m.thod a.d suita.le fla.hes a.0}ng five fla.hes. Result revea.ed tha. percent of fruit set of pa.sion fruit wa. recorded highest;Seeds per pla.t were recorded highest in third fla.h when flowers were pollina.ed by ha.d com.a.ed with self-, a.d na.ura. pollina.ions. Length-brea.th ra.ios of fruits in third fla.hes were recorded higher when pollina.es by ha.d. Individua. fruit weight wa. a.so recorded higher a. third fla.h. Pla.ts required m.nim.m.da.s from.flower a.thesis to full m.turity during third fla.h. On the other ha.d, fruit growth beha.ior of ha.d pollina.ed flowers wa. recorded higher during third fla.h of pa.sion fruit. Results indica.ed tha. a.l studied cha.a.teristics of fruit a.d seed of pa.sion fruit of third fla.h perform.d best.

关键词： Pa.sion Fruit Fruit Setting Fla.h Pollina.ion

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