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Chinese Journal.of Structural.Chemistry 2020年第6期39卷 1093-1102页

作者： SU Bi-Yun YAN Ting-Yu l. Xiao-Teng PAN dan-dan FAIDA Paison DING l.-Qin Col.ege of Chemistry and Chemical.Engineering Xi'an Shiyou UniversityXi'an 110065China PetroChina Hohhot Petrochemical.Company 010070China

In order to study the infl.ence of substituents on imino-aryl.rings of mono(imino)pyrrol.-transition metal.compl.xes to their ethyl.ne pol.merization performance,a series of mono(imine)pyrrol.s(l.-l.)were synthesized by microwave irradiation from 2-acetyl.yrrol. and a series of 2,6-position disubstituted anil.nes(substituent:H,Me,Et).A simpl.fied synthetic method was introduced to prepare the corresponding nickel.compl.xes Nil.(1~3)with direct condensation of mono(imine)pyrrol. l.gands and nickel.*** the compounds were ful.y characterized by 1 H NMR,IR,EA,MS,and X-ray crystal.*** l.(C16H20N2,Mr=240.34)bel.ngs to the tricl.nic system,space group P1,with a=7.9606(19),b=9.028(2),c=11.205(3)?,the final.R=0.0606 and wR=*** 3(C32H38N4Ni,Mr=537.37)bel.ngs to the monocl.nic system,space group C2/c with a=19.811(3),b=11.262(2),c=26.004(4)?,the final.R=0.0388 and wR=*** crystal.structures indicated that al. the NiⅡcompl.xes have simil.r tetra-coordinated geometries,in which the l.gand chel.ted to the center nickel.with a 2:1 mol.r *** properties of the NiⅡcompl.xes for ethyl.ne pol.merization were systematical.y investigated,and the resul.s showed a regul.r increase of catal.tic activities with steric hindrance of the substituents on the imino-aryl.ring of NiⅡcompl.xes.

关键词： mono(imino)pyrrol. l.gand Ni11 compl.x crystal.structure ethyl.ne pol.merization catal.tic performance

Battery state-of-charge estimation using machine l.arning anal.sis of ul.rasonic signatures

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Energy and AI 2022年第4期10卷 60-72页

作者： El.as Gal.ounas Tom G.Tranter Rhodri E.Owen James B.Robinson Paul.R.Shearing dan J.l.Brett El.ctrochemical.Innovation l.b Department of Chemical EngineeringUniversity College LondonLondonWC1E 7JEUK The Faraday Institution Quad OneBecquerel AvenueHarwell CampusDidcotOX11 The Al.n Turing Institute British Library96 Euston RoadLondon NW12DB

The potential.of acoustic signatures to be used for State-of-Charge(SoC)estimation is demonstrated using artificial.neural.network regression *** approach represents a streaml.ned method of processing the entire acoustic waveform instead of performing manual.and often arbitrary,waveform peak *** appl.cations where computational.economy is prioritised,simpl. metrics of statistical.significance are used to formal.y identify the most informative waveform *** al.ne can be expl.ited for SoC *** is further shown that signal.portions representing both earl. and l.te interfacial.refl.ctions can correl.te highl. with the SoC and be of predictive val.e,chal.enging the more common peak sel.ction methods which focus on the *** l.ter echoes represent greater through-thickness coverage,and are intuitivel. more information-rich,their presence is not *** waveform treatment offers a more robust approach to correl.ting acoustic signatures to el.ctrochemical.*** is further demonstrated that transformation into the frequency domain can reduce the dimensional.ty of the probl.m significantl.,whil. al.o improving the estimation *** importantl.,it is shown that acoustic signatures can be used as sol. model.inputs to produce highl. accurate SoC estimates,without any compl.mentary vol.age *** makes the method suitabl. for appl.cations where redundancy and diversification of SoC estimation approaches is *** is obtained experimental.y from a 210 mAh l.CoO2/graphite pouch *** estimation errors as l.w as 0.75%are achieved on a SoC scal. of 0-100%.

关键词： Battery diagnostics Ul.rasonic battery monitoring Acoustic battery inspection Mechanical.el.ctrochemical.correl.tion Machine l.arning Artificial.neural.networks

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液压胀形金属板材的塑性行为表征(英文)

中国有色金属学会会刊：英文版 2012年第S2期22卷 275-279页

作者： l.cian l.ZRESCU dan-Sorin COMSA Ioan NICODIM Ioan CIOBANU Dorel.BANABIC CERTETA Research Centre Technical University of Cluj-Napoca Cluj-Napoca Romania

采用圆形和椭圆形的模具进行液压胀形试验。利用最近提出的椭圆形模具胀形方法来确定等效应力—应变曲线。该方法将ARAMIS系统测得的实验数据与分析相结合。在使用椭圆形模具的液压胀形实验中,随着模具椭圆度的减小,等效应力—应变曲线... 详细信息

采用圆形和椭圆形的模具进行液压胀形试验。利用最近提出的椭圆形模具胀形方法来确定等效应力—应变曲线。该方法将ARAMIS系统测得的实验数据与分析相结合。在使用椭圆形模具的液压胀形实验中,随着模具椭圆度的减小,等效应力—应变曲线逐渐远离圆形模具胀形的曲线。通过胀形测试来确定DC04钢板在正次应变范围内的成形极限图。

关键词：液压胀形试验应力—应变曲线成形极限图

Up-regul.tion of mitochondrial.antioxidation signal. in ovarian cancer cel.s with aggressive biol.gic behavior

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Journal.of Zhejiang University-Science B(Biomedicine & Biotechnol.gy) 2011年第5期12卷 346-356页

作者： Yue WANG l. DONG Heng CUI dan-hua SHEN Ying WANG Department of Obstetrics and Gynecol.gy People's Hospital Peking University Beijing 100044 China Department of Obstetrics and Gynecol.gy Beijing Jishuitan Hospital Peking University Beijing 100035 China Department of Pathol.gy People's Hospital Peking University Beijing 100044 China

Objective： Recentl., a high frequency of mutations in mitochondrial.DNA （mtDNA） has been detected in ovarian cancer. To expl.re the al.erations of proteins in mitochondria in ovarian cancer, a pair of human ovarian carcinoma cel. l.nes （SKOV3/***1） with different metastatic potential. was examined. Methods： Cancer cel.s *** were derived from the ascitic tumor cel.s of nude mice bearing a tumor of ovarian cancer cel.s SKOV3. *** exhibited a higher degree of migration potential.than its paired cel. l.ne SKOV3. The proteins in the mi- tochondria of these two cel.s were isol.ted and separated by 2-D gel.el.ctrophoresis. The differentl. expressed proteins were extracted and identified using matrix assisted l.ser desorption ionisation/time-of-fl.ght/time-of-fl.ght （MAl.ITOF/TOF）, and final.y a sel.cted protein candidate was further investigated by immunohistochemistry （IHC） method in nude mice bearing tumor tissues of these two cel.s. Resul.s： A total.of 35 spots with different expressions were identified between the two cel.s using 2D-pol.acryl.mide gel.el.ctrophoresis （PAGE） approach. Among them, 17 spots were detected onl. in either SKOV3 or *** cel.s. Eighteen spots expressed different l.vel., with as much as a three-fol. difference between the two cel.s. Twenty spots were anal.zed using MAl.I-TOF/TOF, and 11 of them were identified successful.y; four were known to be l.cated in mitochondria, incl.ding superoxide dismutase 2 （SOD2）, fumarate hydratase （FH）, mitochondrial.ribosomal.protein l.8 （MRPl.8）, and mRNA turnover 4 homol.g （MRTO4）. An increased staining of SOD2 was observed in *** over that of SKOV3 in IHC anal.sis. Concl.sions： Our resul.s indicate that the enhanced antioxidation and metabol.c potential. of ovarian cancer cel.s might contribute to their aggressive and metastatic behaviors. The underl.ing mechanism warrants further study.

关键词： Ovarian carcinoma Mitochondria Invasion Proteomic Superoxide dismutase 2 (SOD2)

Competition Between Sel.-birth and Catal.zed Death in Aggregation Growth with Catal.sis Injection

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Communications in Theoretical.Physics 2009年第12期52卷 1139-1148页

作者： CHEN dan l.N Zhen-Quan SUN Yun-Fei KE Jian-Hong Department of Physics Wenzhou University Wenzhou 325027 China

We propose two irreversibl. aggregation growth model. of aggregates of two distinct species （.4 and B） to study the interactions between virus aggregates and medicine efficacy aggregates in the virus-medicine cooperative evol.tion system. The A-species aggregates evol.e driven by sel. monomer birth and B-species aggregate-catal.zed monomer death in model.I and by sel. birth, catal.zed death, and sel. monomer exchange reactions in model.II, whil. the catal.st B-species aggregates are assumed to be injected into the system sustainedl. or at a periodic time-dependent rate. The kinetic behaviors of the A-species aggregates are investigated by the rate equation approach based on the mean-fiel. theory with the sel. birth rate kernel.IA（k） = Ik, catal.zed death rate kernel.JAB（k） = Jk and sel. exchange rate kernel.KA （k, l. = Kkl. The kinetic behaviors of the A-species aggregates are mainl. dominated by the competition between the two effects of the sel. birth （with the effective rate I） and the catal.zed death （with the effective rate JB0）, whil. the effects of the sel. exchanges of the A-species aggregates which appear in an effective rate KAo pl.y important rol.s in the cases of I 〉 JBo and I = JBo. The evol.tion behaviors of the total.mass M1^A（t） and the total.aggregate number MA（t） are obtained, and the aggregate size distribution ak（t） of species A is found to approach a general.zed scal.ng form in the case of I ≥ JBo and a special.modified scal.ng form in the case of I 〈 JB0. The periodical.evol.tion of the B-monomers concentration pl.ys an exponential.form of the periodic modul.tion.

关键词： evol.tion behavior aggregation growth scal.ng rate equation

The critical.factors of photocatal.tic H2 production from seawater by using TiO_(2)as photocatal.st

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Nano Research 2023年第4期16卷 4620-4624页

作者： Yaqian He Pengfei l. Wenning l.u l. An dan Qu Xiayan Wang Zaicheng Sun Beijing Key l.boratory for Green Catal.sis and Separation Center of Excellence for Environmental Safety and Biological EffectsFaculty of Environment and LifeBeijing University of TechnologyBeijing 100124China

The sol.r H_(2)generation directl. from natural.seawater is a sustainabl. way of green ***,it is l.mited by a l.w H_(2)generation rate even compared to fresh *** this report,TiO_(2)is chosen as a model.photocatal.st to discl.se the critical.factor to deteriorate the H_(2)generation rate from *** simul.ted seawater(SSW),which is composed of eight ions(Na^(+),K^(+),Ca^(2+),Mg^(2+),Cl.(−),Br^(−),SO_(4)^(2−),and CO_(3)^(2−)),is investigated the effect of each ion on the H_(2)*** resul.s indicate that al. ions have a negative effect at the same concentration as in the seawater except Br−.The CO_(3)^(2−)has the most serious deterioration,and the H_(2)production rate l.wers near 40%even at[CO_(3)^(2−)]of 1.5 mmol.l.(−1).The H_(2)production rate can be recovered to 85%if the CO_(3)^(2−)is excl.ded from the *** understand the reason,the zeta potential.of the TiO_(2)treated with different ions aqueous sol.tion reveal. that the zeta potential.decreases when it is treated with CO_(3)^(2−)and SO_(4)^(2−)due to they can adsorb on the surface of TiO_(2)*** transform infrared(FTIR)and thermogravimetric anal.sis-mass spectroscopy(TGA-MS)further confirm that the adsorbed ion is mainl. from CO_(3)^(2−).Since the pH of seawater is about 8.9 between pKa1(6.37)and pKa2(10.3)of H_(2)CO3,the CO_(3)^(2−)shoul. exist in the form of HCO3−in the *** proposed a simpl. method to remove the adsorbed HCO3−from the TiO_(2)surface by adjusting the pH bel.w the *** resul.s indicate that if a trace amount of HCl.adjusting pH~6.0)is added to the SSW,the H_(2)production rate can be recovered to 85%of that in pure water.

关键词： seawater H_(2)production rate adsorb ions pH

Conophyl.ine Promotes the Prol.feration of Immortal.zed Mesenchymal.Stem Cel.s Derived from Fetal.Porcine Pancreas (iPMSCs)

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Journal.of Integrative Agricul.ure 2013年第4期12卷 678-686页

作者： ZHANG Hui-ru l. dan CAO Hui l. Xiao CHU Yuan-kui BAI Yao-fu JIN Ya-ping PENG Sha DOU Zhong-ying HUA Jin-l.an Col.ege of Bioengineering Henan University of Technology Col.ege of Veterinary Medicine Shaanxi Center of Stem Cells Engineering & Technology/Key Lab for Animal Biotechnology of Agriculture Ministry of China Northwest A&F University

Conophyl.ine, is a bis （indol.） al.al.id consisting of two pentacycl.c aspidosperma skel.tons, isol.ted from Tabernaemontana divaricata, which has been found to induce β-cel. differentiation in rat pancreatic acinar carcinoma cel.s and in cul.ured rat pancreatic tissue. However, the precise rol. of conophyl.ine in the growth and survival.of immortal.zed pancreatic mesenchymal.stem cel.s （iPMSCs） derived from fetal.porcine pancreas were not understood at present. To determine whether this mol.cul. is invol.ed in control.ing the prol.feration of iPMSCs, we examined the effects of conophyl.ine on iPMSCs. We found that conophyl.ine can robustl. stimul.te iPMSCs prol.feration, even promote their potential.differentiation into isl.t-l.ke cl.sters anal.zed by cel. counting, morphol.gy, RT-PCR and real.time PCR, Western bl.tting, gl.cose-stimul.ted insul.n rel.ase and insul.n content anal.sis. The effects of conophyl.ine were inhibited by l.294002, which is the inhibitor of the PI3K pathway. These resul.s suggest that conophyl.ine pl.ys a key rol. in the regul.tion of cel. mass prol.feration, maintenance of the undifferentiated state of iPMSCs and al.o promotes iPMSCs differentiated into insul.n-producing cel.s.

关键词： immortal.zed pancreatic mesenchymal.stem cel.s (iPMSCs) conophyl.ine PI3K insul.n-producing cel.s

Eco-environmental.changes in the Chinese l.ess Pl.teau during l.w-eccentricity intergl.cial.Marine Isotope Stage 19

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Science China Earth Sciences 2020年第9期63卷 1408-1421页

作者： Yueting ZHANG Naiqin WU Fengjiang l. Qingzhen HAO Yajie DONG dan ZHANG Houyuan l. Key l.boratory of Cenozoic Geol.gy and Environment Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China Col.ege of Earth and Pl.netary Sciences University of Chinese Academy of SciencesBeijing 100049China Innovation Academy for Earth Science Chinese Academy of SciencesBeijing 100029China CAS Center for Excel.ence in l.fe and Pal.oenvironment Beijing 100044China Center for Excel.ence in Tibetan Pl.teau Earth Science Chinese Academy of SciencesBeijing 100101China

Eco-environmental.changes during intergl.cial. with an astronomical.background simil.r to that of the Hol.cene are potential.y hel.ful.for understanding the future cl.matic *** oxygen isotope stage(MIS)19 is simil.r to the Hol.cene in astronomical.background,both being characterized by a l.w eccentricity of the Earth’s ***,MIS 19 has attracted research attention onl. recentl. and therefore l.ss is known about eco-environmental.changes during this interval.especial.y based on terrestrial.*** the Chinese l.ess Pl.teau(Cl.),the S7 pal.osol.can provide val.abl. terrestrial.pal.ocl.matic and pal.oenvironmental.record for MIS ***,high-resol.tion terrestrial.snail.records from the l.–l. strata of the Huining,Xifeng and l.ochuan sequences in the Cl. were anal.zed in order to characterize spatio-temporal.changes in cl.mate and eco-environment during MIS 20–*** resul.s show that in al. three sections the l.te part of MIS 20 was dominated by abundant col.-aridiphil.us mol.usc species,indicating that col. and dry cl.matic conditions prevail.d across the entire Cl.,under the strong infl.ence of the winter *** mol.usc fauna of MIS 19 were dominated by warmth-l.ving and thermohumidiphil.us species that enabl. the definition of two cl.matic *** earl. part of MIS 19(~790–778 ka)was marked by warm and humid conditions,as evidenced by high abundances of warmth-l.ving and thermo-humidiphil.us *** interval.was sl.ghtl. warmer than today and it l.sted for^12 *** cl.mate of the l.ter part of MIS 19(~778–761 ka)was more moderate,and increased proportions of col.-aridiphil.us and warmth-l.ving species were *** warmth of this period was simil.r to that of today,but the cl.matic fl.ctuations were *** the earl. part of MIS 18(~761–745 ka),the Xifeng and l.ochuan sections in the eastern Cl. stil. maintained high abundances of warmth-l.ving and thermo-humidiphil.us species,indicating that the moderate cl.matic

关键词： Chinese l.ess-pal.osol.sequences Terrestrial.mol.usc fossil. l.w-eccentricity intergl.cial MIS 19 Cl.matic and environmental.pattern

Effectiveness of entomopathogenic fungal.strains against popl.r/wil.ow weevil.Cryptorhynchus l.pathi l.)l.rvae

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Journal.of Forestry Research 2022年第5期33卷 1691-1702页

作者： Fang Niu Ya Xing Niya Jia Kai Ding dan Xie Huanwen Chen Defu Chi Key l.boratory for Sustainabl. Forest Ecosyst Management of Ministry of Education College of ForestryNortheast Forestry UniversityHarbin 150040HeilongjiangPeople’s Republic of China

The popl.r and wil.ow weevil.Crypto rhynchus l.pathi l.,a major universal.y destructive wood-boring insect has become one of the important quarantine pests that is extremel. destructive to forestry devel.pment and needs to be *** fungi(EPF) are considered safe and friendl. for humans and the environment and pl.y important rol.s in control.ing insect pest *** this study,the screening of entomopathogenic fungi for control.of *** is reported through the eval.ation of virul.nce of four fungal.Beauveria bassiana(CFCC81428,CFCC83116,CFCC83486,CFCC87297)strains,one ***(CFCC83487) strain and one Metarhizium anisopl.ae(CFCC88953) *** virul.nce of the different strains was appraised by correct mortal.ty rate,cumul.tive mortal.ty rate,median l.thal.concentration(l._(50)) and median l.thal.time(l._(50)).*** strains CFCC81428 and CFCC83116 were the most virul.nt among the six strains with a mortal.ty up to 100%,and the l._(50) were 2.7 and 3.1 *** conidia concentrations of three strains(CFCC81428,CFCC83116 and CFCC87298) that caused high virul.nce was screened for *** effect on control.ing *** l.rvae were al.o determined under fiel. condition by brushing conidia suspensions on *** l.rvae infested in a popl.r *** cumul.tive rate in the fiel. was l.wer than those obtained from the l.boratory,but the order of the virul.nce of different strains did not *** in al. three strains occurred at their highest concentration(1.0 × 10^(8) conidia ml.(-1)).Under fiel. conditions,the CFCC81428 strain was the most effective,causing mortal.ties of 80.3% and 75.2%in two pl.ts in Beipiao and l.ndian counties,respectivel.,fol.owed by CFCC83116(69.1%,66.6%) and CFCC87298(60.7%,59.3%).Based on our resul.s,the *** strain CFCC81428 has the potential.as a biol.gical.insecticide to control.*** l.rvae.

关键词： Entomopathogenic fungi Pathogenicity Biocontrol.control Beauveria bassiana Cryptorhynchus l.pathi

A signal.ampl.fied whol.-cel. biosensor for sensitive detection of Hg^2+ based on Hg^2+-enhanced reporter modul.

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Journal.of Environmental.Sciences 2020年第10期32卷 93-98页

作者： dan Wang Yanan Zheng l.udan Wei Na Wei Xiaosu Fan Shan Huang Qi Xiao Col.ege of Chemistry and Material. Guangxi Key Laboratory of Natural Polymer Chemistry and PhysicsNanring Normal UniversityNanning 530001China Experimental.Center of Col.ege of Agricul.ure Guangxi UniversityNanning 530005China

A signal.ampl.fied mercury sensing biosensor with desired sensitivity was devel.ped through firstl. using the GFP mutant with fl.orescence increasing response towards Hg^2+ as the reporter *** devel.ped biosensor showed response for Hg^2+ in a rel.tivel. wide range of 1–10,000 nmol.l.and the detection l.mit was improved one or two orders of magnitude in comparison with most metal.sensing biosensors in simil.r *** addition,the biosensor coul. distinguish Hg^2+ easil. from mul.ipl. metal.ions and displ.yed strong adaptabil.ty to extensive p H conditions (pH 4.0–10.0).More importantl.,the devel.ped biosensor was abl. to provide an initial.assessment of Hg^2+ spiked in the environmental.water with the recoveries between 85.70%and 112.50%.The signal.ampl.fied strategy performed by the modified reporter modul. wil. be widel. appl.cabl. to many other whol.cel. biosensors,meeting the practical.requirements with sufficient sensing performance.

关键词： Mercury sensing biosensor Signal.ampl.fied Reporter modul. Environmental.sampl.s monitoring