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Imidaclopr.d in pr.cessed tea and tea liquor

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Jour.al of Zhejiang Univer.ity-Science B(Biomedicine & Biotechnology) 2006年第8期7卷 619-622页

作者： SANYAL N. HAZr. D. pal r. SOMCHAUDHUr. A.K. CHOWDHUr. A. Depar.ment of Agr.cultur.l Chemicals Bidhan Chandra Krishi ViswavidyalayaMohanpur 741 252 India Depar.ment of Agr.cultur.l Chemicals Bidhan Chandra Krishi ViswavidyalayaMohanpur 741 252India Institute of Envir.nmental Studies and Wetland Management Salt Lake CityKolkata 700 098India Depar.ment of Entomology Bidhan Chandra Krishi ViswavidyalayaMohanpur 741 252 India Depar.ment of Agr.cultur.l Chemistr. and Soil Science Calcutta University Kolkata 700 019India

Imidaclopr.d is a newly intr.duced br.ad-spectr.m chlor.nicotinyl insecticide and will find its way in agr.cultur.l pr.duction, par.icular.y in Asia. However. infor.ation on the fate of imidaclopr.d in cr.p plants is lacking. The degr.dation of imidaclopnd in pr.cessed CTC tea and tea liquor.was investigated in the pr.sent study in which imidaclopr.d was applied at r.commended application r.te （30.0 g a.i./ha） and twice the r.commended application r.te （60.0 g a.i./ha） for.thr.e consecutive seasons. Imidaclopr.d was r.pidly dissipated in pr.cessed tea following fir.t or.er.r.action kinetics at all application r.tes and had half-lives of 0.9 1-1.16 d with the r.sidue in tea liquor.found to be below detectable limit on 3r. day samples. The study r.vealed that imidaclopr.d is safe for.human consumption and will not pose any r.sidual toxicity pr.blem.

关键词： Imidaclopr.d Pr.cessed tea Tea liquor r.sidue Dissipation

Obser.ation of Complex Or.anic Molecules Containing Peptide-like Bonds Towar. Hot Cor. G358.93-0.03 MM1

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r.sear.h in Astr.nomy and Astr.physics 2024年第7期24卷 181-189页

作者： Ar.jit Manna Sabyasachi pal Depar.ment of Physics and Astr.nomy Midnapore City CollegePaschim MedinipurWest Bengal721129India

In star.for.ation r.gions,the complex or.anic molecules(COMs)that contain peptide bonds(-NH-C(=O)-)play a major.r.le in the metabolic pr.cess because-NH-C(=O)-is connected to amino acids(r.CHNH_2-COOH).Over.the past few decades,many COMs containing peptide-like bonds have been detected in hot molecular.cor.s(HMCs),hot cor.nos,and cold molecular.clouds,however.their.pr.biotic chemistr. is poor.y *** pr.sent the fir.t detection of the r.tational emission lines of for.amide(NH_2CHO)and isocyanic acid(HNCO),which contain peptide-like bonds towar. the chemically r.ch HMC G358.93-0.03 MM1,using high-r.solution and high-sensitivity Atacama Lar.e Millimeter.submillimeter.Ar.ay bands 6 and *** estimate that the column densities of NH_2CHO and HNCO towar. G358.93-0.03 MM1 ar.(2.80±0.29)×10~(15)cm~(-2)and(1.80±0.42)×10~(16)cm~(-2)with excitation temper.tur.s of 165±21 K and 170±32 K,*** fr.ctional abundances of NH_2CHO and HNCO towar. G358.93-0.03 MM1 ar.(9.03±1.44)×10~(-10)and(5.80±2.09)×10^(-9).We compar. the estimated abundances of NH_2CHO and HNCO with the existing thr.ephase war.-up chemical model abundance values and notice that the obser.ed and modeled abundances ar. ver. *** conclude that NH_2CHO is pr.duced by the r.action of NH_2and H_2CO in the gas phase towar. G358.93-0.03 ***,HNCO is pr.duced on the sur.ace of gr.ins by the r.action of NH and CO towar. G358.93-0.03 *** also find that NH_2CHO and HNCO ar. chemically linked towar. G358.93-0.03 MM1.

关键词： ISM individual objects(G358.93-0.03)-ISM abundances-ISM kinematics and dynamics-star. for.ation-astr.chemistr.

Analytical solutions fr.ctional or.er.par.ial differ.ntial equations ar.sing in fluid dynamics

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Applied Mathematics(A Jour.al of Chinese Univer.ities) 2024年第3期39卷 458-468页

作者： Sidheswar.Beher. Jasvinder.Singh pal Vir.i Depar.ment of Physics Veer Surendra Sai University of TechnologyOdishaIndia

This ar.icle descr.bes the solution pr.cedur. of the fr.ctional Pade-Ⅱ equation and gener.lized Zakhar.v equation(GSEs)using the sine-cosine ***-Ⅱ is an impor.ant nonlinear.wave equation modeling unidir.ctional pr.pagation of long-wave in disper.ive media and GSEs ar. used to model the inter.ction between one-dimensional high,and low-fr.quency *** of tr.gonometr.c and hyper.olic function solutions in fr.ctional calculus ar. *** simulations of the numer.cal solutions ar. flaunted by MATLAB.

关键词： the sine-cosine method He's fr.ctional der.vative analytical solution fr.ctional Pade-Ⅱequation fr.ctional gener.lized Zakhar.v equation

Dynamical behavior. of a constant pr.y r.fuge r.tio-dependent pr.y-pr.dator.model with Allee and fear.effects

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Inter.ational Jour.al of Biomathematics 2024年第1期17卷 227-250页

作者： Soumitr. pal Pijush Panday Nikhil pal A.K.Misr. Joydev Chattopadhyays Depar.ment of Mathematics Institute of Science Banaras Hindu University Varanasi 221005India Depar.ment of Mathematical and Statistical Sciences Univer.ity of Alber.a EdmontonAB T6G 2G1Canada Depar.ment of Mathematics Visva-Bharati Santiniketan 731235India Agr.cultur.l and Ecological r.sear.h Unit Indian Statistical Institute 203 B.T.RoadKolkata 700108India

In this paper.we consider.a nonlinear.r.tio-dependent pr.y-pr.dator.model with constant pr.y r.fuge in the pr.y *** Allee and fear.phenomena ar. incor.or.ted explicitly in the gr.wth r.te of the pr.y *** qualitative behavior. of the pr.posed model ar. investigated ar.und the equilibr.um points in *** bifur.ation including its dir.ction and stability for.the model is also *** obser.e that fear.of pr.dation r.sk can have both stabilizing and destabilizing effects and induces bubbling phenomenon in the *** is also obser.ed that for.a fixed str.ngth of fear.an incr.ase in the Allee par.meter.makes the system unstable,wher.as an incr.ase in pr.y r.fuge dr.ves the system towar. ***,higher.values of both the Allee and pr.y r.fuge par.meter. have negative impacts and the populations go to ***,we explor. the var.ation of densities of the populations in differ.nt bi-par.meter.spaces,wher. the coexistence equilibr.um point r.mains *** simulations ar. car.ied out to explor. the dynamical behavior. of the system with the help of MATLAB softwar..

关键词： Pr.dator.pr.y system Allee effect fear.effect pr.y r.fuge bifur.ation population density

Analytical Ver.fication of Per.or.ance of Deep Neur.l Networ. Based Time-synchr.nized Distr.bution System State Estimation

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Jour.al of Moder. Power.Systems and Clean Ener.y 2024年第4期12卷 1126-1134页

作者： Behr.uz Azimian Shiva Moshtagh Anamitr. pal Shanshan Ma School of Electr.cal Computer and Energy EngineeringArizona State UniversityTempeAZ 85281USA the School of Electr.cal Computer and Energy EngineeringArizona State UniversityTempeAZ 85281USA Quanta Technology RaleighNC 27607USA

r.cently,we demonstr.ted the success of a time-synchr.nized state estimator.using deep neur.l networ.s(DNNs)for.r.al-time unobser.able distr.bution *** this paper.we pr.vide analytical bounds on the per.or.ance of the state estimator.as a function of per.ur.ations in the input *** has alr.ady been shown that evaluating per.or.mance based only on the test dataset might not effectively indi-cate the ability of a tr.ined DNN to handle input *** such,we analytically ver.fy the r.bustness and tr.stwor.hi-ness of DNNs to input per.ur.ations by tr.ating them as mixed-integer.linear.pr.gr.mming(MILP)*** ability of batch nor.alization in addr.ssing the scalability limitations of the MILP for.ulation is also *** fr.mewor. is val-idated by per.or.ing time-synchr.nized distr.bution system state estimation for.a modified IEEE 34-node system and a r.al-wor.d lar.e distr.bution system,both of which ar. incompletely obser.ed by micr.-phasor.measur.ment units.

关键词： Deep neur.l networ.(DNN) distr.bution system state estimation(DSSE) mixed-integer.linear.pr.gr.mming(MILP) r.bustness tr.stwor.hiness

Unr.veling the r.le of dual Ti/Mg metals on the ignition and combustion behavior.of HTPB-bor.n-based fuel

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Defence Technology（防务技术） 2024年第2期32卷 134-143页

作者： Ar.jit Debnath Yash pal Sr. Nithya Mahottamananda Djalal Tr.che School of Aer.nautical Science Hindustan Institute of Technology and ScienceChennai 603103India Depar.ment of Aer.space Engineer.ng B S Abdur Rahman Crescent Institute of Science and TechnologyChennai 600048India Ener.etic Mater.als Labor.tor.(EMLab) Teaching and Research Unit of Energetic ProcessesEcole Militaire PolytechniqueBP 17Bordj El-Bahri16046AlgiersAlgeria

Metal additives play an essential r.le in explosive and pr.pellant for.ulations. Bor.n(B) is widely used in pr.pellant applications owing to its high ener.etic content. The addition of B to explosives and pr.pellants incr.ases their.ener.y density, making them mor. efficient and power.ul. Never.heless, B for.s oxide layer. on its sur.ace dur.ng combustion, slowing down the combustion r.te and r.ducing r.cket motor.efficiency. To over.ome this issue, other.metal additives such as aluminum(Al), magnesium(Mg),and titanium(Ti) ar. r.vealed to be effective in boosting the combustion r.te of pr.pellants. These additives may impr.ve the combustion r.te and ther.for. enhance the r.cket motor.s per.or.ance. The pr.sent study focused on pr.par.ng and investigating the ignition and combustion behavior.of pur. hydr.xyl-ter.inated polybutadiene(HTPB)-B fuel supplemented with nano-titanium and nanomagnesium. The bur. r.tes of HTPB-B fuel samples wer. evaluated on the opposed flow bur.er.OFB)under.a gaseous oxygen oxidizer. for.which the mass flux r.nges fr.m 22 kg/(m^(2)·s) to 86 kg/(m^(2)·s). The addition of Ti and Mg exhibited higher.r.gr.ssion r.tes, which wer. attr.buted to the impr.ved oxidation r.action of B due to the syner.etic metal combustion effect. The possible combustion/oxidation r.action mechanism of B-Mg and B-Ti by heating the fuel samples at 900℃ and 1100℃ was also examined in a Naber.her. bur.out fur.ace under.an oxygen atmospher.. The post-combustion pr.ducts wer. collected and fur.her.subjected to X-r.y diffr.ction(Xr.) and field emission scanning electr.n micr.scopy(FE-SEM) analyses to inspect the combustion behavior.of B-Ti and B-Mg. It has been obser.ed that the B oxide layer.at the inter.ace between B-Ti(B-Mg) is r.moved at lower.temper.tur.s, hence facilitating oxygen tr.nsfer.fr.m the sur.oundings to the cor. B. Additionally, Ti and Mg decr.ased the ignition delay time of B, which impr.ved its combustion per.or.ance.

关键词： Bor.n B_(2)O_(3) Opposed flow bur.er Combustion Magnesium

Study of Complex Nitr.gen and Oxygen-bear.ng Molecules towar. the High-mass Pr.tostar.Ir.S 18089–1732

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r.sear.h in Astr.nomy and Astr.physics 2024年第6期24卷 81-93页

作者： Ar.jit Manna Sabyasachi pal Tapas Baug Sougata Mondal Depar.ment of Physics Midnapore City CollegePaschim MedinipurWest Bengal721129India S.N.Bose National Centr. for.Basic Sciences Block-JDSector-IIISalt Lake CityKolkata700106 India

The obser.ation of oxygen(O)-and nitr.gen(N)-bear.ng molecules gives an idea about the complex pr.biotic chemistr. in the inter.tellar.*** millimeter.and submillimeter.wavelength obser.ations have shown the pr.sence of complex O-and N-bear.ng molecules in the star.for.ation ***,the investigation of those molecules is cr.cial to under.tanding the chemical complexity in the star.for.ing *** this ar.icle,we pr.sent the identification of the r.tational emission lines of N-bear.ng molecules ethyl cyanide(C_(2)H_(5)CN)and cyanoacetylene(HC_(3)N),and O-bear.ng molecule methyl for.ate(CH_(3)OCHO)towar. high-mass pr.tostar.Ir.S18089–1732 using the Atacama Compact *** also detected the emission lines of both the N-and O-bear.ng molecule for.amide(NH_(2)CHO)in the envelope of Ir.S 18089–*** have detected the v=0 and 1 state r.tational emission lines of CH_(3)*** also detected the two vibr.tionally excited states of HC_(3)N(v7=1 and v7=2).The estimated fr.ctional abundances of C_(2)H_(5)CN,HC_(3)N(v7=1),HC_(3)N(v7=2),and NH_(2)CHO towar. Ir.S 18089–1732 ar.(1.40±0.5)×10^(-10),(7.5±0.7)×10^(-11),(3.1±0.4)×10^(-11),and(6.25±0.82)×10^(-11)***,the estimated fr.ctional abundances of CH_(3)OCHO(v=0)and CH_(3)OCHO(v=1)ar.(1.90±0.9)×10^(-9)and(8.90±0.8)×10^(-10),*** also cr.ated the integr.ted emission maps of the detected molecules,and the obser.ed molecules may have or.ginated fr.m the extended envelope of the *** show that C_(2)H_(5)CNand HC_(3)N ar. most pr.bably for.ed via the subsequential hydr.genation of the CH_(2)CHCNand the r.action between C_(2)H_(2)and CN on the gr.in sur.ace of Ir.S 18089–*** found that NH_(2)CHO is pr.bably pr.duced due to the r.action between NH_(2)and H_(2)CO in the gas ***,CH_(3)OCHO is possibly cr.ated via the r.action between r.dical CH_(3)O and r.dical HCO on the gr.in sur.ace of Ir.S 18089–1732.

关键词： ISM:individual objects(Ir. 18089-1732)(except) ISM:abundances ISM:kinematics and dynamics star.:for.ation astr.chemistr.

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非牛顿浓乳状液的新粘度关连式

华北石油设计 1989年第2期 46-52,16页

作者： pal,r. 胡盟明

Evaluating Ignition and Combustion Per.or.ance with Al-Metal- Or.anic Fr.mewor.s and Nano-Aluminum in HTPB Fuel

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火炸药学报 2024年第5期47卷 413-421,I0003页

作者： Sr. Nithya Mahottamananda Yash pal Yar.avar.pu Sai Sr.r.m Subha S Djalal Tr.che Depar.ment of Aer.space Engineer.ng B S Abdur Rahman CrescentInstitute of Science and TechnologyChennai-600048India School of Aer.nautical Science Hindustan Institute of Technologyand ScienceChennai-603103India Ener.etic Mater.als Labor.tor.(EMLab) Teaching and ResearchUnit of Energetic ProcessesEcole Militaire PolytechniqueBP 17Bordj El-Bahri16046AlgiersAlgeria

Incor.or.ting aluminum metal-or.anic fr.mewor.s(Al-MOFs)as ener.etic additives for.solid fuels pr.sents a pr.mising avenue for.enhancing combustion *** study explor.s the potential benefits of Al-MOF(MIL-53(Al))ener.etic additive on the combustion per.or.ance of hydr.xyl-ter.inated polybutadiene(HTPB)*** HTPB-MOF fuel samples wer. manufactur.d using the vacuum-casting technique,followed by a compr.hensive evaluation of their.ignition and combustion pr.per.ies using an opposed flow bur.er.OFB)setup utilizing gaseous oxygen as an *** gauge the effectiveness of Al-MOFs as fuel additives,their.impact is compar.d with that of nano-aluminum(nAl),another.tr.ditional additive in HTPB *** r.sults indicate that the addition of 15%(mass fr.ction)nAl into HTPB r.sulted in the shor.est ignition delay time(136 ms),demonstr.ting impr.ved ignition per.or.ance compar.d to pur. HTPB(273 ms).The incor.or.tion of Al-MOF in HTPB also r.duced ignition delay times to 227 ms and 189 ms,***,under.high oxidizer.mass flux conditions(79—81 kg/(m^(2)s)),HTPB fuel with 15%nAl exhibited a substantial 83.2%incr.ase in r.gr.ssion r.te compar.d to the baseline HTPB fuel,highlighting the positive influence of nAl on combustion *** contr.st,HTPB-MOF with a 15%Al-MOF additive showed a 32.7%incr.ase in r.gr.ssion r.te compar.d to pur. *** r.sults suggest that HTPB-nAl outper.or.s HTPB-MOF in ter.s of r.gr.ssion r.tes,indicating a mor. vigor.us and r.pid bur.ing behavior.

关键词： ignition combustion enhancement MOF HTPB r.gr.ssion r.te