检索结果-南通市图书馆

Gen.ralized Method of Biparametric Sub Pixel Thermal Location

在线全文

学校读者我要写书评

暂无评论

Position.n. 2016年第2期7卷 75-79页

作者： A. sh. Mehdiyev n. A. Abdullayev R. n. Abdulov H. H. Asadov Sevda n. Abdullayeva n.tion.l Aviation.Academy Baku Azerbaijan Research In.titute of Min.stry of Defen.e In.ustry Baku Azerbaijan Research In.titute of Aerospace In.ormatics Baku Azerbaijan Scien.ific-In.ustrial Cen.er OZONE Baku Azerbaijan

It is well-kn.wn.that accordin. the Dozier’s method, utilization.of in.egral of Plan.s fun.tion.in.fusion.of sign.ls of two differen. chan.els of airborn. radiometer makes it possible to compute such compon.n.s of temperature field within.on. pixel as temperatures of the object an. backgroun.. In.the paper, the gen.ralization.of Dozier method is suggested. The suggested gen.ralization.of Dozier’s bispectral method n.med as biparametric method is applicable for static remote objects. In.the suggested biparametric method, the measuremen.s are carried out at the momen.s t1 an. t2. It is assumed that the object temperature reaches quan.ity T(t1) an. T(t2) at these momen.s. On.the bases of operation.l data of scan.in. in.rared radiometer, the square area of on. pixel can.be calculated in.depen.en.e of distan.e between.object an. radiometer. This makes it possible to carry out location.of static objects from two basis poin.s usin. serial sin.le wavelen.ths measuremen.s of radiation.emitted by the sub pixel object.

关键词： Radiometer Pixel Radiation Location Bispectral Measuremen.s Sen.or

Flow In.ection.Chemilumin.scen.e Determin.tion.of Puerarin.in.Pharmaceutical Preparation. Usin. Eosin.Y-Fen.on.System

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chin.se Journ.l of Chemistry 2011年第6期29卷 1261-1267页

作者： Cai, Zhuo Zhan., Xian.Lu, Den.fen. gan, Jin.n. College of Chemistry an. Chemical En.in.erin. Guangxi University Nanning Guangxi 530004 China

A n.vel chemilumin.scen.e （CL） system was established for the determin.tion.of puerarin.in.pharmaceutical preparation.. It was shown.that a stron. CL sign.l was observed when.Eosin.Y reacted with the hydroxyl radicals which were gen.rated from Fen.on.reagen. in.acidic medium. The CL in.en.ity was decreased sign.fican.ly when.puerarin.was added to the reaction.system an. partially scaven.ed the hydroxyl radicals in.the solution. The exten. of decrease in.the CL in.en.ity had a good stoichiometrical relation.0}ip with puerarin.con.en.ration. Based on.this, a n.w method for the determin.tion.of puerarin.usin. a flow in.ection.chemilumin.scen.e techn.que was developed. The experimen.al parameters that affected the CL in.en.ity were optimized. Un.er the optimal con.ition., the lin.ar ran.e for puerarin.con.en.ration.was 8.0 × 10^-8--2.0 × 10^-6 mol/L （R = 0.9982） with a detection.limit of 7.5 × 10^-9 mol/L （S/n. 3） an. the relative stan.ard deviation.was method was applied to the determin.tion.of puerarin.in.a 1.7% for 4.0× 10^-7 mol/L puerarin.（n. 11）. The proposed puerarin.in.ection.with satisfactory results.

关键词： flow in.ection chemilumin.scen.e Eosin.Y puerarin hydroxyl radical

Ligand accommodation.causes altered reactivity of silver clusters with iodomethan.:superatomic stability of Ag_(9)I_(2)^(+)in.mimickin. XeF_(2)

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Scien.e Chin. Chemistry 2022年第8期65卷 1594-1600页

作者： Haimin. Wu Men.zhou Yan. Ben.en.Huan. Wen.gan Zhixun.Luo Beijin. n.tion.l Laboratory for Molecular Scien.es(Bn.MS) State Key Laboratory for Structural Chemistry of Unstable and Stable SpeciesInstitute of ChemistryChinese Academy of SciencesBeijing 100190China Un.versity of Chin.se Academy of Scien.es Beijing 100049China

Explorin. metal cluster reactivity with alkyl halides en.bles to un.erstan. the related chemical mechan.sm of metal surfaces in.terms of active *** we report a study of Ag_(n.^(+)(n.1-27)clusters reactin. with iodomethan. by a flow tube apparatus in.tan.em with a customized triple quadrupole mass *** even.odd altern.tion.of the Ag_(n.^(+)is observed in.their reaction. with CH_(3)I,where silver clusters with even.n.mber,Ag_(2n.^(+),fin. favorable products of Ag_(2n.I_(1,3)^(+)series,while the Ag_(2n.1)^(+)clusters form Ag_(2n.1)I_(2,4)^(+)***,Ag_(9)^(+)shows up with promin.n. mass abun.an.e but allows for the formation.of Ag_(9)I_(2)^(+),which fin.s an.echo with the formation.of Ag_(10)I_(3)^(+).We illustrate the en.an.ed stability of Ag_(9)I_(2)^(+)an. Ag_(10)I_(3)^(+)by showin. their sign.fican.ly en.arged highest occupied molecular orbital(HOMO)-lowest un.ccupied molecular orbital(LUMO)gaps an. balan.ed charge distribution.compared with the bare metal clusters,*** elucidated,is the superatomic n.ture of these bare an. iodin.ted silver clusters,especially Ag_(9)I_(2)^(+)which mimics the rare-gas compoun. XeF_(2).This study expan.s a vivid example of special an. gen.ral superatoms,an. en.iches the gen.ral kn.wledge on.how a ligand stabilizes a metal cluster.

关键词： metal cluster superatom halide superatomic complex gas-phase reaction

Fluorescen.e Quen.hin. an. Depolarization.Studies on.Segmen.al Motion.of Poly (n. n.dimethylacrylamide)

在线全文

学校读者我要写书评

暂无评论

Chin.se Chemical Letters 1997年第8期8卷 719-720页

作者： Zhu, CY Wu, sh Li, LR n.n.AI Un.V DEPT CHEMTIANJIN 300071PEOPLES R CHINA

A n.w polymer, poly(n. n.dimethylacrylamide), labeled with acen.phthylen. has been.syn.hesized. The rotation.l relaxation.time of this polymer has been.studied usin. steady state fluorescen.e depolarization.measuremen...

关键词： Fluorescen.e Quen.hin. an. Depolarization.Studies on.Segmen.al Motion.of Poly n.dimethylacrylamide

Stability of the Stan.in. Waves for a Class of Coupled n.n.in.ar Klein.Gordon.Equation.

在线全文

学校读者我要写书评

暂无评论

Acta Mathematicae Applicatae Sin.ca 2010年第3期26卷 427-442页

作者： Jian.Zhan. Zai-hui gan Bo-lin. Guo College of Mathematics an. Software Scien.e Sichuan Normal University Chengdu 610066 China In.titute of Applied Physics an. Computation.l Mathematics Beijing 100088 China

This paper deals with the stan.in. waves for a class of coupled n.n.in.ar Klein.Gordon.equation. with space dimen.ion.n.≥ 3, 0 〈 p, q 〈 2/n.2 an. p ＋ q 〈 4/n. By usin. the variation.l calculus an. scalin. argumen., we establish the existen.e of stan.in. waves with groun. state, discuss the behavior of stan.in. waves as a fun.tion.of the frequen.y ω an. give the sufficien. con.ition. of the stability of the stan.in. waves with the least en.rgy for the equation. un.er study.

关键词： Coupled n.n.in.ar Klein.Gordon.equation. Stability Stan.in. wave Variation.l calculus

Design. Syn.hesis, an. An.iviral Activity of n.vel Chalcon. Derivatives Con.ain.n. a Purin. Moiety

在线全文

学校读者我要写书评

暂无评论

Chin.se Journ.l of Chemistry 2017年第5期35卷 665-672页

作者： Xiuhai gan Yan.iao Wan. Deyu Hu Baoan.Son. State Key Laboratory Breedin. Base of Green.Pestieide an. Agricultural Bioen.in.erin. Key Laboratory of Green Pesticide and Agrieultural Bioengineering Ministry of Education Center for Research and Development of Fine Chemicals Guizhou University Guiyang Guizhou 550025 China College of Chemistry an. Life Scien.e Guizhou Education University Guiyang Guizhou 550018 China

To fin. n.w an.iviral agen.s,n.vel chalcon. derivatives con.ain.n. a purin. moiety were design.d an. syn.hesized by combin.n. bioactive *** an.iviral activities of the derivatives again.t tobacco mosaic virus （TMV） an. cucumber mosaic virus （CMV） were *** showed that most of the derivatives showed an.iviral *** 3n.an. 3p exhibited excellen. curative,protective an. in.ctivation.activities again.t TMV,with the EC50values of 452.4,416.2,241.2 an. 438.7,418.6,261.7 μg·mL-1,respectively,which were better than.those of ribavirin.（585.8,436.0 an. 268.7 μg·mL-1）.Compoun.s 3n.an. 3p showed remarkable curative an. protective activities again.t *** 3n.showed a moderate affin.ty to TMV coat protein.with bin.in. con.tan. Ka an. Kd values of 1.5 × 104 L·mol-1 an. 79.8 μmol·L-1,*** fin.in.s provided an.importan. structural in.ight for further design. of highly active chalcon. derivatives an. a basis for further study on.their mechan.sm of action.

关键词： chalcon. purin. an.iviral activity tobacco mosaic virus cucumber mosaic virus

Con.amin.n. removal from low-con.en.ration.polluted river water by the bio-rack wetlan.s

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journ.l of En.iron.en.al Scien.es 2012年第6期24卷 1006-1013页

作者： Ji Wan. Lan.in. Zhan. shaoyon. Lu Xian.can.Jin. shu gan Key Laboratory of Groun.water Resources an. En.iron.en. Ministry of EducationJilin UniversityChangchun 130021China State En.iron.en.al Protection.Key Laboratory for Lake Pollution.Con.rol Engineering and Technology Center of LakeResearch Center of Lake EnvironmentChinese Research Academy of Environment SciencesBeijing 100012China College of Resources an. En.iron.en. Hunan Agriculture UniversityChangsha 410128China

The bio-rack is a n.w approach for treatin. low-con.en.ration.polluted river water in.wetlan. systems.A comparative study of the efficien.y of con.amin.n. removal between.four plan. species in.bio-rack wetlan.s an. between.a bio-rack system an. con.rol system was con.ucted on.a small-scale （500 mm len.th × 400 mm width × 400 mm height） to evaluate the decon.amin.tion.effects of four differen. wetlan. *** was gen.rally a sign.fican. differen.e in.the removal of total n.trogen.（Tn.,ammon.a n.trogen.（n. 3-n. an. total phosphorus （TP）,but n. sign.fican. differen.e in.the removal of perman.0}ate in.ex （COD Mn. between.the bio-rack wetlan. an. con.rol ***-rack wetlan. plan.ed with Thalia dealbata had higher n.trien. removal rates than.wetlan.s plan.ed with other *** fin.-root （root diameter 3 mm） biomass rather than.total plan. biomass was related to n.trien. removal *** study suggested that the n.trien. removal rates are in.luen.ed by plan. species,an. high fin.-root biomass is an.importan. factor in.selectin. highly effective wetlan. plan.s for a bio-rack *** to the mass balan.e,the Tn.an. TP removal were in.the ran.e of 61.03-73.27 g/m^2 an. 4.14-5.20 g/m^2 in.four bio-rack wetlan.s durin. the whole operation.l *** n.an. P removal by plan. uptake con.tituted 34.9%-43.81% of the mass n.removal an. 62.05%-74.81% of the mass P *** study showed that the n.trification.den.trification.process an. plan. uptake process are major removal pathways for Tn.while plan. uptake is an.effective removal pathway for TP.

关键词： bio-rack con.tructed wetlan. fin.-root biomass low-con.en.ration.polluted river water plan.s uptake

Metabolic cell death in.can.er:ferroptosis,cuproptosis,disulfidptosis,an. beyon.

在线全文

学校读者我要写书评

暂无评论

Protein.& Cell 2024年第9期15卷 642-660页

作者： Chao Mao Min.Wan. Li Zhuan. Boyi gan Departmen. of Experimen.al Radiation.On.ology The University of Texas MD Anderson Cancer CenterHoustonTX 77030USA Departmen. of Molecular an. Cellular Biology Baylor College of MedicineHoustonTX 77030USA The Un.versity of Texas MD An.erson.UTHealth Graduate School of Biomedical Scien.es HoustonTX 77030USA

Cell death resistan.e represen.s a hallmark of *** studies have iden.ified metabolic cell death as un.que forms of regulated cell death resultin. from an.imbalan.e in.the cellular *** review discusses the mechan.sms of metabolic cell death—ferroptosis,cuproptosis,disulfidptosis,lysozin.rosis,an. alkaliptosis—an. explores their poten.ial in.can.er *** review un.erscores the complexity of the metabolic cell death pathways an. offers in.ights in.o in.ovative therapeutic aven.es for can.er treatmen..

关键词： cell death can.er treatmen. ferroptosis cuproptosis disulfidptosis

Possible therapeutic targets an. promisin. drugs based on.un.ymmetrical hetaryl-substituted porphyrin. to combat SARS-CoV-2

在线全文

学校读者我要写书评

暂无评论

Journ.l of Pharmaceutical An.lysis 2021年第6期11卷 691-698页

作者： Yury A.Gubarev n.talya sh.Lebedeva Elen. S.Yurin. Sergey A.Syrbu Aleksey n.Kiselev Mikhail A.Lebedev G.A.Krestov In.titute of Solution.Chemistry of the Russian.Academy of Scien.es 153045IvanovoRussia Ivan.vo State Un.versity of Chemistry an. Techn.logy 153000IvanovoRussia

Coron.virus disease 2019 is a serious disease that causes acute respiratory syn.rome an. n.gatively affects the cen.ral n.rvous *** acute respiratory syn.rome coron.virus 2(SARS-CoV-2)crosses the blood-brain.barrier due to the spike(S) protein.on.the surface of the viral ***,it is importan. to develop compoun.s that n.t on.y have an.in.ibitory effect but are also capable of completely deactivatin. the S protein.*** study describes the purposeful modification.of porphyrin. an. proposes compoun.s,asymmetrically hetaryl-substituted porphyrin. with ben.othiazole,ben.oxazole,an. n.methylben.imidazole residues,to deactivate the S protein.*** dockin. of SARS-CoV-2 protein. with hetaryl-substituted porphyrin. showed that the viral S protein.n.cleocapsid(n. protein.an. n.n.structural protein.13(n.p13) exhibited the highest bin.in. ***-substituted porphyrin. form stron. complexes(13-14 kcal/mol) with the receptor-bin.in. domain.of the S protein.while the distan.e from the porphyrin. to the receptor-bin.in. motif(RBM)does n.t exceed 20 ?;therefore,RBM can.be oxidized by ^(1)O_(2),which is gen.rated by *** porphyrin. in.eract with the n.protein.in.the serin./argin.n.-rich region.an. a n.mber of vuln.rable amin. acid residues are located in.the photooxidation.*** damage complicates the packagin. of viral Rn. in.o n.w ***-en.rgy bin.in. of hetaryl-substituted porphyrin. with the n.an. C-termin.l domain. of n.p13 was *** bin.in. blocks the action.of n.p13 as an.en.yme of exoribon.clease an. methyltran.ferase,thereby preven.in. Rn. replication.an. processin..A procedure for the syn.hesis of hetaryl-substituted porphyrin. was developed,n.w compoun.s were obtain.d,their structures were iden.ified,an. their photocatalytic properties were studied.

关键词： Porphyrin. SARS-CoV-2 Molecular dockin. Photoin.ctivation