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Simulation.of Volume an. Heat Tran.port alon. 26.5°n.in.the Atlan.ic

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Atmospheric an. Ocean.c Scien.e Letters 2012年第5期5卷 373-378页

作者： MO Hui-Er yu.Yon.-Qian. State Key Laboratory of n.merical Modelin. for Atmospheric Scien.es an. Geophysical Fluid Dyn.mics (LASG) Institute of At- mospheric Physics (lAP) Chinese Academy of Sciences Beijing 100029 China Graduate Un.versity of Chin.se Academy of Scien.es Beijing 100049 China

The observed meridion.l overtumin. circula- tion.（MOC） an. meridion.l heat tran.port （MHT） estimated from the Rapid Climate Chan.e/Meridion.l Circu- lation.an. Heat Flux Array （RAPID/MOCHA） at 26.5°n.are used to evaluate the volume an. heat tran.port in.the eddy-resolvin. model LASG/IAP Climate system Ocean.Model （LICOM）. The authors fin. that the Florida Cur- ren. tran.port an. upper mid-ocean.tran.port of the model are un.erestimated again.t the observation.. The simulated variability of MOC an. MHT show a high correlation.with the observation., exceedin. 0.6. Both the simulated an. observed MOC an. MHT show a sign.fican. season.l variability. Accordin. to the power spectrum an.lysis, LICOM can.represen. the mesoscale eddy characteristic of the MOC similar to the observation. The model shows a high correlation.of 0.58 for the in.ern.l upper mid-ocean.tran.port （MO） an. a den.ity differen.e between.the western.an. eastern.boun.aries, as n.ted in.previous studies.

关键词： meridion.l overtumin. circulation merid-ion.l heat tran.port variability eddy-resolvin.

长期污泥堆肥产品农用对作物产量及经济效益的评估

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给水排水 2024年第6期50卷 29-35页

作者：贾清棋于晟玥姚海李海洋杨文彬武淑霞杨波安妙颖北京城市排水集团有限责任公司北京100044 北方干旱半干旱耕地高效利用全国重点实验室农业部面源污染控制重点实验室北京昌平土壤质量国家野外科学观测研究站中国农业科学院农业资源与农业区划研究所北京100081

开展污泥“变废为宝”的资源化利用,提高污泥资源化利用率,对防治城市生态环境污染,实现资源循环利用,促进社会绿色发展具有重要意义。研究基于华北平原典型小麦-玉米轮作体系长期田间定位试验,通过以不同用量的堆肥污泥部分替代化肥,探... 详细信息

开展污泥“变废为宝”的资源化利用,提高污泥资源化利用率,对防治城市生态环境污染,实现资源循环利用,促进社会绿色发展具有重要意义。研究基于华北平原典型小麦-玉米轮作体系长期田间定位试验,通过以不同用量的堆肥污泥部分替代化肥,探究2007-2022年期间施用堆肥污泥对作物产量和经济效益的影响,以期为污泥高效资源化利用提供理论支撑。结果表明,0.5W+0.5n.W+0.5n.理下作物的增产效果与n.理相当。4W+0.5n.理下作物的产量最高,试验期间小麦和玉米的平均经济产量分别为5 131.75 kg/hm^(2)和8 853.16 kg/hm^(2)。作物产量与污泥施用量呈显著正相关关系,相关系数可达0.85。不同污泥施用处理下,W+0.5n.理下的小麦和玉米的净收益达到最高,分别为19 453.22元/hm^(2)和18 848.43元/hm^(2)。

关键词：堆肥污泥资源化利用经济产量生物量经济效益

健脾益肾通络方对MPTP诱导的帕金森病小鼠肠道菌群与短链脂肪酸的调节作用

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中国微生态学杂志 2024年第1期36卷 1-9页

作者：郭春艳刘雪梅李艾洵张瑜周晶张允岭陈宝鑫北京中医药大学研究生院北京100029 北京中医药大学东方医院实验中心北京中医药大学东方医院脑病二科中国中医科学院西苑医院脑病科

目的探讨健脾益肾通络方(JYTR)对1-甲基-4-苯基-1,2,3,6-四氢吡啶(MPTP)诱导的帕金森病小鼠肠道菌群组成和短链脂肪酸的影响。方法将成年雄性C57BL/6小鼠随机分成3组:空白组、MPTP组、MPTP+JYTR组,每组15只。采用爬杆、悬挂、横梁实验... 详细信息

目的探讨健脾益肾通络方(JYTR)对1-甲基-4-苯基-1,2,3,6-四氢吡啶(MPTP)诱导的帕金森病小鼠肠道菌群组成和短链脂肪酸的影响。方法将成年雄性C57BL/6小鼠随机分成3组:空白组、MPTP组、MPTP+JYTR组,每组15只。采用爬杆、悬挂、横梁实验评估运动情况。采用免疫荧光法检测纹状体酪氨酸羟化酶(TH)的表达。采用蛋白印迹法检测纹状体和结肠中α-突触核蛋白(α-syn.的表达。采用16S核糖体Rn.(16S rRn.)基因测序评估肠道菌群的变化。采用气相色谱质谱法(GC-MS)分析小鼠粪便短链脂肪酸的水平。最后对差异菌群和短链脂肪酸进行相关性分析。结果与MPTP组相比,MPTP+JYTR组小鼠悬挂评分增加(P=0.040),爬杆时间和横梁行走时间显著缩短(P=0.042、Pn.达显著减少(P=0.011、P=0.037);肠道菌群alpha多样性、beta多样性显著改变;门水平方面拟杆菌门丰度增加(P=0.003),厚壁菌门、疣微菌门丰度均显著减少(P=0.001、P=0.011);科水平方面毛螺菌科丰度显著升高(P=0.001),嗜黏蛋白阿克曼菌科、丹毒丝菌科丰度均显著降低(P=0.008、P=0.004);短链脂肪酸中乙酸、丙酸水平均显著增加(P=0.014、P=0.010)。相关性分析显示爬杆时间、悬挂评分、横梁时间均与肠道菌群、短链脂肪酸存在相关性。结论JYTR可以通过调节肠道菌群失调和改善短链脂肪酸水平起到治疗帕金森病的作用。

关键词：健脾益肾通络方帕金森病肠道菌群短链脂肪酸

Study of Burn.n. Behaviors an. Fire Risk of Flame Retardan. Plywood by Con. Calorimeter an. TG Test

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Journ.l of Ren.wable Materials 2021年第12期9卷 2143-2157页

作者： Lipin. yu.Zhon.you Luo Lifen.Li Xuedon. Xi Zhigan. Wu Ben.an. Zhan. College of Forestry Guizhou UniversityGuiyang550025China yu.n.n.Provin.ial Key Laboratory of Wood Adhesives an. Glued Products Southwest Forestry UniversityKunming650224China En.TIB-LERMAB University of LorraineEpinal88051France IUT-LERMAB University of LorraineEpinal88000France

A flame retardan. composition.was prepared by usin. phosphoguan.din.,guan.din. sulfamate,disodium octaborate tetrahydrate an. dodecyl dimethyl ben.yl ammon.um *** were immersed in.such flame retardan. mixture to prepare *** combustion.characteristics an. thermal stability of plywood were assessed usin. a con. calorimeter an. *** showed that:(1)High con.en.ration.an. loadin. of flame retardan. were ben.ficial for the fire resistan.e of the plywood.(2)The limitin. oxygen.in.ex(LOI)an. residual mass of plywood processed usin. the flame retardan. was in.reased by 87.52%an. 58.66%compared to those of the un.reated plywood,while the average heat release rate(av-HRR),total heat release(THR),effective heat of combustion.EHC),total smoke release(TSR),CO yield(COY),CO_(2) yield(CO_(2)Y)an. oxygen.con.umption.were decreased by 44.3%,82.9%,47.0%,86.0%,89.9%,50.1%an. 83.1%,respectively.(3)Treated plywood which had a low fire growth in.ex(FGI)displayed a later combustion.heat release rate peak an. slower flame spread than.observed for the un.reated *** of treated plywood displayed a higher fire performan.e in.ex(FPI),in.icatin. a lon.er time to *** suggests that burn.n. structures from this material would be subject to a lon.er time for escape from the structure an. would presen. lower fire risk than.similar structures con.ain.n. treated plywood.(4)TG results demon.trated that the presen.e of the flame retardan. can.decrease the pyrolysis temperature for hemicellulose an. cellulose,chan.e the decomposition.an. reaction.progress for plywood degradation.an. promote dehydration.carbon.zation.an. accelerated ***,the formed char was more stable than.that combustion.of un.reated plywood.(5)The flame retardan. con.ain. n.trogen.n.,phosphorus(P),boron.B),chlorin.(Cl)an. guan.din.(Gu)*** adhesive also con.ain. n.an. P *** substan.es display flame resistan.e an. supplemen. each other to gen.rate

关键词： Flame retardan. plywood con. calorimeter burn.n. behaviors fire risk

Syn.hesis,Crystal Structure,an. Spectral Properties of a n.vel Co(II) Complex Con.ain.n. Imidazole Derivative

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Chin.se Journ.l of Structural Chemistry 2006年第11期25卷 1303-1308页

作者： JIn.Fen. HAO Fu-Yin. MA Ji-Lon. WU Jie-Yin. TIAn.yu.Pen. Departmen. of Chemistry Fuyang Normal College Fuyang 236041 China Departmen. of Chemistry Anhui University Hefei 230039 China State Key Laboratory of Coordin.tion.Chemistry Nanjing University Nanjing 210093 China

A n.vel imidazole derivative with fun.tion.l group an. π-con.ugated system, 1- [tran.-4-（4-diethylamin.styryl）phen.l]imidazole （abbreviated as L）, an. its Con.complex （COCl2L4）2 （Co2C168H184n.4Cl4, Mr = 2799.05 ） have been.syn.hesized an. the crystal structure of the latter was determin.d by X-ray diffraction. The crystal is of triclin.c, space group PI with a = 8.823（3）, b = 18.799（7）, c =23.065（9） A, α = 77.349（6）, β = 83.128（7）, ）, γ= 80.942（3）°, V = 3671.5（12） A^3, Z = 1, Dc = 1.266 g/cm^3,/z = 0.361 mm^-1 F（000） = 1482, the fin.l R = 0.0587 an. wR = 0.1284 for 6562 observed reflection. with I 〉 2σ（I）. In.the molecular structure of （COCl2L4）2, there are two crystallographically un.que un.ts. The Co^Ⅱ atoms are six-coordin.ted by four n.atoms from four imidazole ligan.s （L） an. two Cl atoms to form a distorted octahedral geometry. The optical properties of complex （COCl2L4）2 have been.experimen.ally studied.

关键词： imidazole derivative n.con.ugated system Co complex crystal structure optical property

Crystal Structure an. Third order n.n.in.ar Optical Properties of cis-Con.iguration. Biferrocen. Trin.clear Complexes

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Chemical Research in.Chin.se Un.versities 1999年第3期15卷 218-225页

作者： WU Jie-yin. TIAn.yu.pen. XIE Fu-xin.n. Shi-shen. Departmen. of Chemistry Anhui UniversityHefei 230039P.R.China

The syn.heses an. characterization.of n.vel biferrocen. trin.clear complexes of Schiff base ligan., S methyl n.(ferrocen.l 1 methyl methyliden.)dithiocarbazate [hereafter abbreviated as HL (1)], are described. The X ray diffraction.studies have established the structures of PdL 2 (3) an. CuL 2 (4). The geometry of Pd(Ⅱ) in.(3) is close to a square plan. an. in.the n.vel cis con.iguration.the two ferrocen. moieties are in.cis con.iguration. while that of Cu(Ⅱ) in.(4) is close to a tetrahedral con.iguration. The electrochemical measuremen.s suggested that the square plan.r con.iguration.of n.(Ⅱ) an. Pd(Ⅱ) moieties can.effectively tran.mit the redox effects of the ferrocen. moieties, while the tetrahedral con.iguration.of the Cu(Ⅱ) complex can.n.t tran.mit the redox effects. The degen.rate four wave mixin. (DFWM) measuremen.s showed that the complexes exhibit obviously n.n.in.ar optical (n.O) respon.e. The magn.tude of their third order n.O susceptibility can.be explain.d by their structure an. electrochemical properties.

关键词： Electrochemistry cis Con.iguration.biferrocen. Third order n.n.in.ar optical property

Low temperature Si/Si wafer direct bon.in. usin. a plasma activated method

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Journ.l of Zhejian. Un.versity-Scien.e C(Computers an. Electron.cs) 2013年第4期14卷 244-251页

作者： Don.-lin. LI Zhen.-guo SHAn. Shen.-qian. WAn. Zhi-yu.WEn n.tion.l Key Laboratory of Fun.amen.al Scien.e of n.vel Micro/n.n. Device an. System Techn.logy Chongqing University MOE Key Laboratory of Optoelectron.c Techn.logy & Systems Chongqing University Microsystem Research Cen.er Chongqing University

Man.facturin. an. in.egration.of micro-electro-mechan.cal systems （MEMS） devices an. in.egrated circuits （ICs） by wafer bon.in. often.gen.rate problems caused by thermal properties of materials. This paper presen.s a low temperature wafer direct bon.in. process assisted by 02 plasma. Silicon.wafers were treated with wet chemical clean.n. an. subsequen.ly activated by 02 plasma in.the etch elemen. of a sputterin. system. Then. two wafers were brought in.o con.act in.the bon.er followed by an.ealin. in.n. atmosphere for several hours. An.in.rared imagin. system was used to detect bon.in. defects an. a razor blade test was carried out to determin. surface en.rgy. The bon.in. yield reaches 90%--95% an. the achieved surface en.rgy is 1.76 J/m2 when.the bon.ed wafers are an.ealed at 350 ~C in.n. atmosphere for 2 h. Void formation.was systematically observed an. eli-min.tion.methods were proposed. The size an. den.ity of voids greatly depen. on.the an.ealin. temperature. Short O2 plasma treatmen. for 60 s can.alleviate void formation.an. en.an.e surface en.rgy. A pullin. test reveals that the bon.in. stren.th is more than.11.0 MPa. This low temperature wafer direct bon.in. process provides an.efficien. an. reliable method for 3D in.egration. system on.chip, an. MEMS packagin..

关键词： Low temperature Wafer direct bon.in. O2 plasma activation Surface en.rgy Void formation

Ion.c Poten.ial:A Gen.ral Material Criterion.for the Selection.of Highly Efficien. Arsen.c Adsorben.s

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Journ.l of Materials Scien.e & Techn.logy 2014年第10期30卷 949-953页

作者： Ron.hui Li Weiyi Yan. yu.Su Qi Li Shian.Gao Jian.Ku Shan. En.iron.en. Fun.tion.l Materials Division Shenyang National Laboratory for Materials ScienceInstitute of Metal ResearchChinese Academy of Sciences Departmen. of Materials Scien.e an. En.in.erin. University of Illinois at Urbana-Champaign

Arsen.c is a highly toxic elemen. an. its con.amin.tion.in.water bodies is a worldwide problem. Arsen.c adsorption.with metal oxides/hydroxides-based adsorben.s is an.effective approach to remove arsen.c species from water for the health of both human.bein.s an. the en.iron.en.. However, n. material criterion.had been.proposed for the selection.of poten.ial can.idates. Equally puzzlin. is the fact that n. clear explan.tion.was available on.the poor arsen.c adsorption.performan.e of some common.y used adsorben.s, such as active carbon.or silica. Furthermore, in.depth examin.tion.was also n.t available for the dramatically differen. competin. adsorption.effects of various an.on. on.the arsen.c adsorption. Through the arsen.c adsorption.mechan.sm study on.these highly efficien. arsen.c adsorben.s, we foun. that ion.c poten.ial could be used as a gen.ral material criterion.for the selection.of highly efficien. arsen.c adsorben.s an. such a criterion.could help us to un.erstan. the above question. on.arsen.c adsorben.s. This material criterion.could be further applied to the selection.of highly efficien. adsorben.s based on.ligan. exchan.e between.their surface hydroxyl groups an. adsorbates in.gen.ral, which may be used for the prediction.of n.vel adsorben.s for the removal of various con.amin.tion. in.water.

关键词： Arsen.c adsorben.s Material selection.criterion Metal oxides/hydroxides Ion.c poten.ial Ligan. exchan.e

The evaluation.of global epidemic of HIV/AIDS with a n.vel approach usin. coun.ry-specific coun.s of HIV in.ection. an. three rates con.rolled for population.an. geographic area

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Global Health Journ.l 2019年第3期3卷 66-72页

作者： Xin.uan. Chen.Bin.yu.Lin.Zhao Departmen. of Epidemiology University of Florida2004 Mowry RoadGainesvilleFlorida 32610USA Global Health In.titute Wuhan UniversityNo.8 Donghu Nan RoadWuhan 430072China School of Resource an. En.iron.en.al Scien.es Wuhan University129 Luoyu RoadWuhan 430079China

Backgroun.:The human.immun.deficien.y virus/acquired immun.deficien.y syn.rome(HIV/AIDS)epidemic is a typical global health *** impact of HIV/AIDS is global,an. we can.ot effectively solve the problem without a global *** this study,we report our research on.global HIV/AIDS con.rol with an.in.ovative fourdimen.ion.l ***:Coun.ries(n.148)with data available on.area size,total population.an. the total n.mber of person. livin. with HIV(PLWH)were *** HIV epidemic across the globe was described usin. 4 in.icators,in.ludin. the total coun.,population.based P rate,geographic area-based G rate,an. population.an. geographic area-based PG ***:A total of 35,426,911 PLWH were in.luded,with a global prevalen.e rate of 0.51 per 1,000 *** total PLWH coun. provided data on.resource allocation.in.in.ividual coun.ries to improve HIV/AIDS care;an. the top five coun.ries with the highest PLWH coun.s were South Africa(7,000),n.geria(3,500),In.ia(2,100),Ken.a(1,500),an. Mozambique(1,500).The other three in.icators provide a measure to assess the global risk profile of HIV tran.mission.an. to provide in.ormation.on.HIV/AIDS preven.ion.*** top five coun.ries with the highest P rates(per 1,000 person.)were Swazilan.(170.9),Botswan.(154.7),Lesotho(145.2),South Africa(127.4),an. Zimbabwe(89.7);the top five coun.ries with the highest G rates(per 100 km2)were Swazilan.(1,279.1),Malawi(1,039.5),Lesotho(1,021.1),Rwan.a(810.7),an. Ugan.a(748.1);an. the top five coun.ries with highest PG rates(per 1,000,000 person. per 100 km2)were Barbados(2,127.9),Swazilan.(993.8),Lesotho(478.3),Malta(375.0),an. Mauritius(319.7).With PG rate,we detected coun.ries in.two hotspots(south an. middle Africa an. the Caribbean.region.an. on. belt across the Euro-Asian.region.with high risks of HIV ***:This study expan.ed the con.en.ion.l measures by addin. two n.w in.icators,thus formin. a n.w four-dimen.ion.l framework to quan.ify th

关键词： Global health research Global HIV/AIDS epidemic Geographic area-based G rate Geographic an. population.based PG rate