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Chinese Journa. of Chemistry 2012年第4期30卷 924-928页

作者： shaikh,Ka.eer a. Pa.il,Visha. a. shaikh,parveen a. Orga.ic Synthesis La.ora.ory Department of ChemistrySir Sayyed CollegeAurangabad-431001MaharashtraIndia

The meta. coordina.ion complex K4[Fe（CN）6] is a. efficient a.d environmenta.ly benign ca.a.yst for the syn- thesis of imida.olines a.d benzimida.oles from va.ious a.dehydes a.d 1,2-dia.ines in a.ueous medium a. room... 详细信息

关键词： a.dehyde 1,2-dia.ines Ka.Fe(CN)6] imida.olines benzimida.oles wa.er

Effect of cooling media.on bea. geometry,microstructure,a.d mecha.ica. properties of wire a.c a.ditive ma.ufa.tured IN718 a.loy

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a.va.ces in Ma.ufa.turing 2024年第1期12卷 124-149页

作者： parveen Kuma. Sa.ish Kuma. Sha.ma.Ra.nesh Kuma. Ra. Singh Depa.tment of Mecha.ica. Engineering Thapar Institute of Engineering and TechnologyPatialaPunjab147004India

This work a.ms to present a.d explore therma. ma.a.ement techniques for the wire a.c a.ditive ma.ufa.turing(Wa.M)of IN718 *** hea. ca. be mitiga.ed via.a.r or wa.er *** this study,the ma.eria. wa. deposited under four different hea.-input conditions with a.r or wa.er *** a.r cooling,the la.er is deposited in a.norma. a.mospheric a.r environment,wherea. with wa.er cooling,the ma.eria. is deposited inside a.wa.er ta.k by va.ying the wa.er *** va.ida.e the a.r a.d wa.er cooling therma. ma.a.ement techniques,IN718 single-pa.s a.d multila.er linea. wa.ls were deposited using the bidirectiona. ga. meta. a.c welding ba.ed Wa.M setup under four different hea. input *** the deposition of single la.ers,the tempera.ure profiles were recorded,a.d the geometric a.d microstructura. fea.ures were *** multila.er wa.l structures,the mecha.ica. properties(ha.dness,tensile strength,a.d elonga.ion)were determined a.d a.sessed using the corresponding microstructura. fea.ures explored through sca.ning electron microscopy(SEM),energy dispersive spectroscopy(EDS),a.d electron ba.ksca.ter diffra.tion(EBSD)*** microstructure observed through SEM a.a.ysis in the building direction wa. found to be nonhomogenous compa.ed with tha. in the deposition ***,wa.er cooling wa. found to govern bea. cha.a.teristics,such a. wa.l width a.d *** gra.n size a.d a.isotropy of the mecha.ica. properties a.so decrea.ed in the wa.er-cooled ***,wa.er cooling is a. economica. a.d efficient method to mitiga.e excessive hea. a.cumula.ion in Wa.M-deposited IN718.

关键词： a.r cooling Wa.er cooling IN718 Bea. cha.a.teristics Microstructure Electron ba.ksca.ter diffra.tion(EBSD)

Tria.-displa.ed ULa. configura.ion for non-circula. sources with la.ger continuous virtua. a.erture a.d enha.ced degrees of freedom

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Journa. of Systems Engineering a.d Electronics 2024年第1期35卷 81-93页

作者： shaikh a.dul Ha.ee Da.G Xia.yu HUa.G Da.ing College of Electronic a.d Informa.ion Engineering Nanjing University of Aeronautics and AstronauticsNanjing 211106China

Non-uniform linea. a.ra.(NULa.configura.ions a.e well renowned due to their structura. a.ility for providing increa.ed degrees of freedom(DOF)a.d wider a.ra. a.erture tha. uniform linea. a.ra.s(ULa.).These cha.a.teristics pla. a.significa.t role in improving the direction-of-a.riva.(DOa.estima.ion ***,most of the existing NULa.geometries a.e prima.ily a.plica.le to circula. sources(CSs),while they limitedly improve the DOF a.d continuous virtua. a.erture for noncircula. sources(NCSs).Towa.d this purpose,we present a.tria.displa.ed ULa.(Tdis-ULa.)configura.ion for *** TdisULa. structure genera.ly consists of three ULa.,which a.e a.propria.ely *** proposed a.tenna.a.ra. a.proa.h fully exploits the non-circula. cha.a.teristics of the *** the sa.e number of elements,the Tdis-ULa. design a.hieves more DOF a.d la.ger hole-free co-a.ra. a.erture tha. its spa.se a.ra. ***,the number of uniform DOF,optima. distribution of elements a.ong the ULa.,a.d precise element positions a.e uniquely determined by the closed-form ***,the proposed a.ra. a.so produces a.filled resulting *** simula.ions a.e conducted to show the performa.ce a.va.ta.es of the proposed Tdis-ULa. configura.ion over its counterpa.t designs.

关键词： direction-of-a.riva.(DOa.estima.ion spa.se a.ra. non-circula. source(NCS) sum co-a.ra. difference co-a.ra. degrees of freedom(DOF)

Fine Sa.d a.d Cla. Sediment a.oustic Properties of the Novel Sediment Sa.ple from the a.a.ia. Sea.Experimenta. Investiga.ions a.d Biot−Stoll Model Va.ida.ion

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China.Ocea. Engineering 2024年第1期38卷 169-180页

作者： Sha.a.uddin shaikh HUa.G Yi-wa.g ZHa.G Ze-chua. Ha.ib Hussa.n ZUBERI Na.iona. Key La.ora.ory of Underwa.er a.oustic Technology a.d College of Underwa.er a.oustic Engineering Harbin Engineering UniversityHarbin 150001China

The present study explores the physica. a.d a.oustic cha.a.teristics of fine sa.d a.d cla. in novel sea.ed ma.ine sediments from of Pa.ista. coa.tline of the a.a.ia. *** mea.ured physica. pa.a.eters included mea. gra.n size,ma.s density,bulk density,sa.inity,porosity,permea.ility,pore size a.d minera.ogica. *** properties,including sound speed a.d a.tenua.ion,in the high frequency ra.ge of 90-170 kHz were a.a.yzed.a.controlled la.ora.ory setup with the a.oustic tra.smission method a.d Fourier tra.sform techniques wa. utilized to exa.ine the sound propa.a.ion a.d a.sorption of novel sea.ed *** sta.da.d devia.ion of mea. sound speed in fresh wa.er wa. 0.75 m/s,a.d a.tenua.ion wa. observed in the ra.ge of 0.43 to 0.61 dB/*** mea. sound velocity in sa.d a.d cla. va.ied from 1706 to 1709 m/s a.d 1602 to 1608 m/s,*** a.era.e a.tenua.ion wa. observed a. 80 to 93 dB/m in sa.dy sediments a.d from 31.8 to 38.6 dB/m in cla.ey *** velocity va.ia.ion within sa.dy sediment is low,consistent with expected results,a.d sma.ler tha. the predicted ***,cla. sediment exhibited a.positive linea. correla.ion a.d low sound speed *** increa.ed linea.ly with frequency for both ***,the la.ora.ory results were va.ida.ed by using the Biot−Stoll *** dispersion of sound speed in sa.dy a.d cla.ey sediments wa. consistent with the predictions of the Biot−Stoll *** a.tenua.ion a.igned more with Biot−Stoll model predictions due to improved permea.ility,tortuosity a.d pore size pa.a.eter fitting.

关键词： physica. a.d a.oustic cha.a.teristics ma.ine sediments sound speed a.tenua.ion Biot−Stoll model

Geomorphic signa.ures a.d a.tive tectonics in western Sa.ra.htra.Guja.a.,India

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Geodesy a.d Geodyna.ics 2024年第1期15卷 82-99页

作者： Bikra.a.itya.Monda. Mery Biswa. Soumya.it Mukherjee Moha.edha.oon a.shaikh Depa.tment of Ea.th Sciences Indian Institute of Technology BombayMumbai 400076MaharashtraIndia Depa.tment of Geogra.hy Presidency UniversityKolkata 700073West BengalIndia

a.tive tectonics in a. a.ea.includes ongoing or recent geologic *** pa.er investiga.es the tectonic influence on the subsidence,uplift a.d tilt of western Sa.ra.htra.through morphotectonic a.a.ysis of ten wa.ersheds a.ong with cha.a.teristics of relief a.d dra.na.e *** 7-9 to the north(N)a.e tectonica.ly a.tive,which ca. be linked with the North Ka.hia.a. Fa.lt System(NKFS)a.d followed by wa.ersheds 6,10,1,4 a.d ***-length gra.ient index a.d sinuosity index indica.e the effect of tectonic events a.ong the ma.ter strea.s in wa.ersheds *** R^(2)va.ues of the linea. curve fit for wa.ershed 7 indica.e its ma.ter strea. is much more tectonica.ly a.tive tha. the *** R^(2)curve fitting model a.d ea.thqua.e ma.nitude/depth a.a.ysis confirm the region to be *** rea.tiva.ion of the NKFS most likely led to the vertica. movement of western Sa.ra.htra.

关键词： a.tive tectonics Geomorphology Western Sa.ra.htra a.cheology North ka.hia.a. fa.lt system

Robust design of sliding mode control for a.rship tra.ectory tra.king with uncerta.nty a.d disturba.ce estima.ion

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Journa. of Systems Engineering a.d Electronics 2024年第1期35卷 242-258页

作者： Wa.IM Muha.ma. a.I a.sa. CHOUDHRY Moha.ma. a.ma. shaikh Ina. Ul Ha.a. Sa.EEM Fa.sa. Depa.tment of a.rona.tics a.d a.trona.tics Engineering Institute of Space TechnologyIslamabad 44000Pakistan Depa.tment of Electrica. Engineering University of Engineering and TechnologyTaxila 47080Pakistan Depa.tment of Mea.urements a.d Control Systems Silesian University of TechnologyGliwice 44-101Poland The Joint Doctora. School Silesian University of TechnologyGliwice 44-100Poland

The robotic a.rship ca. provide a.promising a.rosta.ic pla.form for ma.y potentia. *** a.plica.ions require a.precise a.tonomous tra.ectory tra.king control for *** ha. a.nonlinea. a.d uncerta.n *** is prone to wind disturba.ces tha. offer a.cha.lenge for a.tra.ectory tra.king control *** pa.er a.dresses the a.rship tra.ectory tra.king problem ha.ing time va.ying reference pa.h.a.lumped pa.a.eter estima.ion a.proa.h under model uncerta.nties a.d wind disturba.ces is opted a.a.nst distributed *** uses extended Ka.ma. filter(EKF)for uncerta.nty a.d disturba.ce *** estima.ed pa.a.eters a.e used by sliding mode controller(SMC)for ultima.e control of a.rship tra.ectory *** comprehensive a.gorithm,EKF ba.ed SMC(ESMC),is used a. a.robust solution to tra.k a.rship *** proposed estima.or provides the estima.es of wind disturba.ces a. well a. model uncerta.nty due to the ma.s ma.rix va.ia.ions a.d a.rodyna.ic model *** sta.ility a.d convergence of the proposed method a.e investiga.ed using the Lya.unov sta.ility *** simula.ion results show tha. the proposed method efficiently tra.ks the desired *** method solves the sta.ility,convergence,a.d cha.tering problem of SMC under model uncerta.nties a.d wind disturba.ces.

关键词： a.rship cha.tering extended Ka.ma. filter(EKF) model uncerta.nties estima.ion sliding mode controller(SMC)

Understa.ding the ca.a.ytic performa.ce a.d dea.tiva.ion beha.iour of second-promoter doped Pt/WO_(χ)/γ-a._(2)O_(3) ca.a.ysts in the glycerol hydrogenolysis for selective a.d clea.er production of 1,3-propa.ediol

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Journa. of Energy Chemistry 2024年第7期94卷 486-507页

作者： Ra.ik Ra.ja. shaikh Sitticha. Da.rua.g Ra.s a.ma. Kha. Supa.ea. Pra.erthda. Piya.a. Pra.erthda. Center of Excellence on Ca.a.ysis a.d Ca.a.ytic Rea.tion Engineering(CECC) Department of Chemical EngineeringFaculty of EngineeringChulalongkorn UniversityBangkok 10330Thailand Depa.tment of Chemistry College of ScienceKing Saud UniversityP.O.Box 2455Riyadh 11451Saudi Arabia High-Performa.ce Computing Unit(CECC-HCU) Centre of Excellence on Catalysis and Catalytic Reaction Engineering(CECC)Department of Chemical EngineeringFaculty of EngineeringChulalongkorn UniversityBangkok 10330Thailand

The selective a.ueous-pha.e glycerol hydrogenolysis is a.promising rea.tion to produce commercia.ly useful 1,3-propa.ediol(1,3-PDO).The Pt-WOx bifunctiona. ca.a.yst ca. ca.a.yse the glycerol hydrogenol-ysis but the ca.a.yst dea.tiva.ion via.sintering,meta. lea.hing,a.d coking ca. predomina.tly occur in the a.ueous pha.e *** this work,the effect of rea.tion tempera.ure,pressure a.d second promoter(Cu,Fe,Rh,Mn,Re,Ru,Ir,Sn,B,a.d P)on ca.a.ytic performa.ce a.d dea.tiva.ion beha.iour of Pt/WOx/-a.2O3 wa. *** doped with Rh,Mn,Re,Ru,Ir,B,a.d P,the second promoter boosts ca.a.ytic a.tivity by promoting grea. dispersion of Pt on support a.d increa.ing Pt surfa.e *** increa.ed Bronsted a.id sites lea. to selective synthesis of 1,3-PDO tha. 1,2-propa.ediol(1,2-PDO).The cha.a.teriza.ion studies of fresh a.d spent ca.a.ysts revea. tha. the ma.n ca.se of ca.a.yst dea.tiva.ion is the Pt sintering,a. interpreted ba.ed on XRD,CO chemisorption,a.d TEM *** Pt sintering is a.fected depending on the second promoter tha. ca. either or reduce the intera.tion between Pt,WO_(χ)/γ a.d a._(2)O_(3).a. a. electron a.ceptor of Pt in Pt/WO_(χ)/γ-a._(2)O_(3),Re a.d Mn a. second promoters resulted in increa.ed Pt^(2+) on the ca.a.ytic surfa.e,which strengthens the conta.t between Pt a.dγ-a._(2)O_(3) a.d WO_(χ),resulting in a.decrea.e in Pt *** meta. lea.hing a.d coking a.e not a.fected by the presence of second *** ca.a.yst modified with a.second promoter possesses improved ca.a.ytic a.tivity a.d 1,3-PDO production,however the sta.ility continues to rema.n a.*** present work unra.-elled the determining pa.a.eters of ca.a.ytic a.tivity a.d dea.tiva.ion,thus providing a.promising pro-tocol towa.d effective ca.a.ysts for glycerol hydrogenolysis.

关键词： Glycerol hydrogenolysis 1,3-propa.ediol Meta.-support intera.tion Second promoter Liquid pha.e Ca.a.yst dea.tiva.ion

Susta.na.le bio-energy genera.ion via.the conversion of spent wa.h using dua. cha.ber microbia. fuel cell

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Wa.te Disposa. a.d Susta.na.le Energy 2024年第2期6卷 219-231页

作者： a.dul Sa.ta. Ja.oi Ja.a. a.med a.a.ue a.med Bhutto Muha.ma. Shua.b shaikh Depa.tment of Chemica. Engineering Dawood University of Engineering and Technology KarachiSindhPakistan Cha.gzhou DUBO Polymer Co. Ltd.Changzhou 213002China Depa.tment of Ba.ic Science a.d Rela.ed Studies The University of LarkanoSindhPakistan Depa.tment of Chemica. Engineering Mehran University of Engineering and Technology JamshoroSindhPakistan

Microbia. fuel cells(MFCs)a.e innova.ive devices tha. combine microbia. processes with electrochemica. rea.tions to convert orga.ic ma.ter in wa.tewa.er into electricity while simulta.eously trea.ing the *** such a.plica.ion is the trea.ment of spent wa.h,a.highly polluting effluent genera.ed from the distillery industry a.ter crude mesh is sepa.a.ed into etha.ol a.d spent *** wa.h,a.so known a. distillery effluent or stilla.e,is a.highly cha.lenging wa.tewa.er trea.ment method due to its high chemica. oxygen dema.d(COD),biologica. oxygen dema.d(BOD),a.d tota. dissolved solids(TDS).These cha.a.teristics ma.e it a.complex a.d polluting industria. effluent tha. requires specia.ized trea.ment processes to reduce its environmenta. impa.t ***,MFCs ha.e shown promise in trea.ing spent wa.h,a. they ca. utilize the orga.ic ma.ter in wa.tewa.er a. a.fuel source for microbia. growth a. well a. for electricity *** the trea.ment of spent wa.h,Sa.cha.omyces cerevisia. *** used a. a.bioca.a.yst a.ong with 340 mol/L pota.sium ferricya.ide in the ca.hode cha.ber a.d 170 mol/L methylene blue in the a.ode a. a.*** tests were conducted by ba.a.cing a.one-liter volume for power production from spent wa.h in MFC with the optima. conditions of 10%a.a.ose,pH 8.5,300 mL/min of a.ra.ion in the ca.hode cha.ber,a.d 40%(in weight)substra.e *** a. idea. concentra.ion,the ma.imum current a.d power density a.e roughly 53.41 ma.m^(2)a.d 72.22 mW/m^(2),*** ea.h litre of processed spent wa.h,a.ma.imum volta.e of 850 mV(4.5 ma.wa. ***,91%of COD a.d BOD were removed from the effluent *** findings show tha. MFCs a.e ca.a.le of producing electricity a.d efficiently removing COD from wa.ted wa.h a. the sa.e time.

关键词： Microbia. fuel cell Chemica. oxygen dema.d Biologica. oxygen dema.d-Current density Power density Spent wa.h

Meta.olic puzzle: Exploring liver fibrosis differences in a.ia. meta.olic-a.socia.ed fa.ty liver disea.e subtypes

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World Journa. of Hepa.ology 2024年第1期16卷 54-64页

作者： Sa.hita.Sha.ir shaikh Fa.ha. a.i Qa.i-a.isa. Sa.a.Na.a. Sidra.Za.eer Ha.eezulla. shaikh Za.id a.a. Na.iona. Institute of Liver a.d GI Disea.es Dow University of Health SciencesSindhKarachi 75330Pakistan School of Public Hea.th Dow University of Health SciencesSindhKarachi 75330Pakistan

Ba.KGROUND Meta.olic-a.socia.ed fa.ty liver disea.e(Ma.LD)is a.liver condition ma.ked by excessive fa. buildup in the a.sence of hea.y a.cohol *** is prima.ily linked with meta.olic issues like insulin resista.ce,obesity,a.d a.norma. lipid levels,a.d is often observed with other conditions such a. type 2 dia.etes a.d ca.diova.cula. ***,whether the subtypes of Ma.LD ba.ed on the meta.olic disorder differentia.ly impa.t liver fibrosis is not well explica.ed,especia.ly in the a.ia. *** To compa.e the severity of liver fibrosis a.ong different Ma.LD *** a.tota. of 322 a.ult pa.ients of either gender with fa.ty liver on ultra.ound were enrolled between Ja.ua.y to December *** wa. defined a. per the a.ia. Pa.ific a.socia.ion for the Study of the Liver ***-4 index(Fib-4)a.d nona.coholic fa.ty liver disea.e fibrosis score(NFS)were employed to eva.ua.e liver *** The mea. a.e wa. 44.84±11 ***-two percent of the pa.ients were *** hundred a.d seventy-three pa.ients were cla.sified a. ha.ing Ma.LD,of which 110(40.3%)ca.ried a.single,129(47.3%)ha. two,a.d 34(12.5%)ha. a.l three meta.olic *** cumula.ive number of meta.olic conditions wa. rela.ed to eleva.ed body ma.s index,triglyceride(TG)levels,a.d glyca.ed hemoglobin,lower high-density lipoprotein(HDL)levels,higher liver infla.ma.ion(by a.pa.ta.e a.inotra.sfera.e a.dγ-gluta.yl tra.sfera.e),a.d higher likelihood of fibrosis(by NFS a.d Fib-4 scores)(Pa.l).The proportion of a.va.ced fibrosis a.so increa.ed with a. increa.e in the number of meta.olic conditions(4.1%,25.5%,35.6%,a.d 44.1%by NFS a.d 6.1%,10.9%,17%,a.d 26.5%by Fib-4 for no Ma.LD a.d Ma.LD with 1,2,a.d 3 conditions,respectively).a.ong Ma.LD pa.ients,those with dia.etes a.one were the eldest a.d ha. the highest mea. va.ue of NFS score a.d Fib-4 score(Pa.LD pa.ients dia.nosed with lea. meta.olic dysfunction exhibited the highest levels of TG a.d a

关键词： Meta.olic syndrome Dia.etes Fa.ty liver disea.e Dyslipidemia Obesity

Socia. Media.Ba.ed Surveilla.ce Systems for Hea.th Informa.ics Using Ma.hine a.d Deep Lea.ning Techniques:a.Comprehensive Review a.d Open Cha.lenges

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Computer Modeling in Engineering & Sciences 2024年第5期139卷 1167-1202页

作者： Sa.ina.a.in Muha.ma. a.i Zeb Ha.i a.sha.ra.i Moha.med Ha.di Moha.ma. a.sula.i a.a.ulla. shaikh Institute of Computing Kohat University of Science and TechnologyKohat26000Pakistan Depa.tment of Computer Science College of Computer Science and Information SystemsNajran UniversityNajran61441Saudi Arabia Depa.tment of Informa.ion System College of Computer Science and Information SystemsNajran UniversityNajran61441Saudi Arabia

Socia. media.SM)ba.ed surveilla.ce systems,combined with ma.hine lea.ning(ML)a.d deep lea.ning(DL)techniques,ha.e shown potentia. for ea.ly detection of epidemic *** review discusses the current sta.e of SM-ba.ed surveilla.ce methods for ea.ly epidemic outbrea.s a.d the role of ML a.d DL in enha.cing their ***,every yea.,a.la.ge a.ount of da.a.rela.ed to epidemic outbrea.s,pa.ticula.ly Twitter da.a.is genera.ed by *** pa.er outlines the theme of SM a.a.ysis for tra.king hea.th-rela.ed issues a.d detecting epidemic outbrea.s in SM,a.ong with the ML a.d DL techniques tha. ha.e been configured for the detection of epidemic *** ha. emerged a. a.promising ML technique tha. a.a.tsmultiple la.ers of representa.ions or fea.ures of the da.a.a.d yields sta.e-of-the-a.t extra.ola.ion *** recent yea.s,a.ong with the success of ML a.d DL in ma.y other a.plica.ion doma.ns,both ML a.d DL a.e a.so popula.ly used in SM *** pa.er a.ms to provide a. overview of epidemic outbrea.s in SM a.d then outlines a.comprehensive a.a.ysis of ML a.d DL a.proa.hes a.d their existing a.plica.ions in SM ***,this review serves the purpose of offering suggestions,idea.,a.d proposa.s,a.ong with highlighting the ongoing cha.lenges in the field of ea.ly outbrea. detection tha. still need to be a.dressed.

关键词： Socia. media epidemic ma.hine lea.ning deep lea.ning hea.th informa.ics pa.demic