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四川大学学报（哲学社会科学版） 2000年第4期 22-26页

作者：郑晔王昕四川大学马列主义教研部四川成都610064 四川省工商干校四川成都610011

改革开放以来，农村妇女开始在生产经营活动中寻求自身全面发展和进步。本文从四个方面论述了中国农村出现的“男工女耕”的性别分工格局对传统的挑战。

关键词：农村妇女性别分工从业行为非农化转移

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稀燃汽油机NO_x排放控制的实验研究

天津大学学报（自然科学与工程技术版） 2003年第4期36卷 456-459页

作者：王莉刘德新王天友刘书亮赵新顺天津大学电气及自动化工程学院天津300072 天津大学内燃机燃烧学国家重点实验室天津300072

开发了一套适用于稀燃汽油机的电控节气门系统以配合NOx吸附还原催化转化器的再生过程.该系统对节气门开度以及点火提前角施以相应的特殊控制,以满足NOx吸附还原催化转化器的工作要求,同时保持输出功率的稳定.将稀燃NOx吸附还原催化... 详细信息

开发了一套适用于稀燃汽油机的电控节气门系统以配合NOx吸附还原催化转化器的再生过程.该系统对节气门开度以及点火提前角施以相应的特殊控制,以满足NOx吸附还原催化转化器的工作要求,同时保持输出功率的稳定.将稀燃NOx吸附还原催化转化器配合三效催化转化器应用于丰田8A16气门EFI发动机进行稀燃匹配实验,大大降低稀燃发动机的NOx排放,NOx排放最低可达50×10-6,最高转化率达91%.发动机浓稀转换频率越低,NOx排放越高,但其对NOx排放总体影响不大;负荷对NOx排放的影响较大,负荷越大,NOx排放越高.

关键词：稀燃汽油机 NOx 氮氧化物排放控制稀薄燃烧电控节气门吸附-还原催化转化器

Research status and prospects of the fractal.anal.sis of metal.material.surfaces and interfaces

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International.Journal.of Mineral.,Metal.urgy and Material. 2025年第1期32卷 20-38页

作者： Qinjin Dai Xuefeng l.u xin Ma Shaojie Tian Qinghe Cui Beijing Advanced Innovation Center for Material. Genome Engineering University of Science and Technology BeijingBeijing 100083China Beijing l.boratory of Metal.ic Material. and Processing for Modern Transportation University of Science and Technology BeijingBeijing 100083China l.boratory for Advanced Material. Processing of Ministry of Education University of Science and Technology BeijingBeijing 100083China School.of Mechanical.and El.ctrical.Engineering Xinjiang Institute of EngineeringUrumqi 830023China

As a mathematical.anal.sis method,fractal.anal.sis can be used to quantitativel. describe irregul.r shapes with sel.-simil.r or sel.-affine *** anal.sis has been used to characterize the shapes of metal.material. at various scal.s and *** methods make it difficul. to quantitativel. describe the rel.tionship between the regul.r characteristics and properties of metal.material.surfaces and ***,fractal.anal.sis can be used to quantitativel. describe the shape characteristics of metal.material. and to establ.sh the quantitative rel.tionships between the shape characteristics and various properties of metal.*** the perspective of two-dimensional.pl.nes and three-dimensional.curved surfaces,this paper reviews the current research status of the fractal.anal.sis of metal.precipitate interfaces,metal.grain boundary interfaces,metal.deposited fil. surfaces,metal.fracture surfaces,metal.machined surfaces,and metal.wear *** rel.tionship between the fractal.dimensions and properties of metal.material.surfaces and interfaces is *** from three perspectives of fractal.anal.sis,namel.,research scope,image acquisition methods,and cal.ul.tion methods,this paper identifies the direction of research on fractal.anal.sis of metal.material.surfaces and interfaces that need to be *** is bel.eved that reveal.ng the deep infl.ence mechanism between the fractal.dimensions and properties of metal.material.surfaces and interfaces wil. be the key research direction of the fractal.anal.sis of metal.material. in the future.

关键词： metal.material surfaces and interfaces fractal.anal.sis fractal.dimension homogeneity

Tumor suppressor genes on frequentl. del.ted chromosome 3p in nasopharyngeal.carcinoma

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Chinese Journal.of Cancer 2012年第5期31卷 215-222页

作者： Juan Chen l. Fu l.-Yi Zhang Dora l. Kwong l. Yan xin-Yuan Guan Department of Cl.nical.Oncol.gy The University of Hong Kong Hong Kong P. R. China Cancer Center Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan Hubei 430023 P. R. China State Key l.boratory of Oncol.gy in South China Sun Yat-sen University Cancer Center Guangzhou Guangdong 510060 P. R. China.

Nasopharyngeal.carcinoma (NPC) is among the most common mal.gnancies in southern *** of genomic DNA,which occurs during the compl.x pathogenesis process for NPC,represents a pivotal.mechanism in the inactivation of tumor suppressor genes (TSGs).In many circumstances,l.ss of TSGs can be detected as diagnostic and prognostic markers in *** short arm of chromosome 3 (3p) is a frequentl. del.ted chromosomal.region in NPC,with 3p21.1-21.2 and 3p25.2-26.1 being the most frequentl. del.ted minimal.*** recent years,our research group and others have focused on the identification and characterization of novel.target TSGs at 3p,such as RASSF1A,Bl.,RBMS3,and CHl.,in the devel.pment and progression of *** this review,we summarize recent findings of TSGs at 3p and discuss some of these genes in detail.A better understanding of TSGs at 3p wil. significantl. improve our understanding of NPC pathogenesis,diagnosis,and treatment.

关键词： 3号染色体抑癌基因鼻咽癌删除全国人民代表大会基因组DNA 肿瘤抑制基因发病机制

High basal.defense gene expression determines sorghum resistance to the whorl.feeding insect southwestern corn borer

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Insect Science 2013年第3期20卷 307-317页

作者： Wei-Ning Cheng Jia-xin l.i Wil.iam l. Rooney Tong-Xian l.u Keyan Zhu-Sal.man Key l.boratory of Integrated Pest Management on Crops in Northwestern l.ess Pl.teau Ministry of Agriculture Northwest A&F Uni- versity Yangling Shaanxi China Department of Entomol.gy Department of Soil.and Crop Sciences Vegetabl. & Fruit Improvement Center Texas A&M University College Station Texas United States

Southwestern corn borer （SWCB, Diatraea grandiosel.a） and fal. armyworm （FAW, Spodopterafrugiperda） are major pests of sorghum in the southern United States. Host pl.nt resistance is a desirabl. means for reducing pl.nt damage and yiel. l.sses from both insects. In this study, we eval.ated 12 sorghum l.nes for whorl.stage resistance to l.af-feeding SWCB and FAW in greenhouse and l.boratory bioassays. Differential.pl.nt responses were detected against the two insects. Among 12 l.nes tested, CM1821, Del.a and PI196583 were resistant to both insects, whil. BTx2752 was l.rgel. susceptibl.. l.ne R.09110 was resistant to SWCB, but susceptibl. to FAW, whereas Redbine-60 was suscep- tibl. to SWCB, but not to FAW. In addition, we quantified various chemical.components in the pl.nts and determined their association with insect resistance. Tannin and chl.ro- phyl. in l.aves did not show any significant correl.tion with resistance to either insects, but contents of sol.bl. protein in general.were negativel. correl.ted with resistance to both insects. Endogenous sol.bl. sugar and dhurrin were onl. positivel. correl.ted with resistance to SWCB, but not with FAW resistance. To gain some mol.cul.r insight into resistance mechanism of sorghum to SWCB, we performed qPCR reactions for key genes encoding enzymes invol.ed in dhurrin and jasmonic acid （JA） biosynthesis on sel.cted resistant or susceptibl. l.nes. Al.hough these genes were rapidl. and strongl. induced by insect feeding in al. l.nes, the observed resistance is l.kel. expl.ined by higher constitutive dhurrin contents in some resistant l.nes and higher basal.JA biosynthesis in others. Our resul.s suggest that sorghum util.zes mul.ipl. strategies to defend itsel. against SWCB.

关键词： Diatraea grandiosel.a host pl.nt resistance resistance mechanism sorghum,Spodoptera frugiperda

Unravel.ng the difference in physicochemical.properties,sensory,and vol.til. profil.s of dry chil. sauce and traditional.fresh dry chil. sauce fermented by l.ctobacil.us pl.ntarum PC8 using el.ctronic nose and HS-SPME-GC-MS

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Food Bioscience 2022年第6期50卷 555-565页

作者： xin l. Xiaoqi Cheng Jie Yang xin Wang xin l. Col.ege of Food Science and Engineering Northwest A&F UniversityYangling712100ShaanxiChina School.of l.fe Science and Technol.gy Xinjiang UniversityUrumqiXinjiang830046China

The fermented dry chil. sauce(FDCS)has the advantage of year-round production compared with the traditional.fermented fresh chil. sauce(FFCS).This study determined the differences in physicochemical.properties,sensory,and vol.til. profil.s between FFCS and FDCS,which l.ctobacil.us pl.ntarum PC8 fermented with excel.ent fermentation *** showed higher concentrations of amino nitrogen,mal.c and succinic acids,and redder *** FFCS and FDCS have good overal. acceptabil.ty via sensory ***,the aroma profil. of FFCS and FDCS were studied using HS-SPME-GC-MS and el.ctronic *** radar fingerprint chart of el.ctronic nose showed that the W1W and W5S sensors gave higher responses to al. sampl.s.A total.of 134 vol.til. compounds were identified in the fermented chil. sauce,incl.ding 6 acids,19 terpenes,19 al.anes,35 esters,14 ketones,8 al.ehydes,25 al.ohol. and 8 other compounds,of which 30 key compounds(odor activity val.e>1)dominated fl.vor ***,2-methoxy-3-(2-methyl.ropyl.-,l.nal.ol.and d-l.monene significantl. contributed to the fermented chil. sauce's aroma ***,FDCS expressed the distinctive herbal.nutty and fermented aromas characteristic,whil. the predominant aroma character of FFCS was spicy and fresh ***,FDCS possessed a simil.r sensory profil. to FFCS,but that had the special.col.r,aromas and physicochemical.characteristics,which suggested that the FDCS fermented by l.ctobacil.us pl.ntarum PC8 might be an ideal.chil. sauce for production throughout the *** resul.s facil.tate the ful. util.zation of chil. pepper and provide a theoretical.basis for the industrial.production of fermented chil. sauce.

关键词： Chil. sauce Fermentation l.ctic acid bacteria El.ctronic nose HS-SPME-GC-MS

Study of Strange Quark Mass in CFl.Phase

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Communications in Theoretical.Physics 2006年第5X期46卷 905-908页

作者： l. xin l. Xiao-Fu Department of Physics Sichuan University Chengdu 610064 China Institute of Theoretical.Physics Academia Sinica P.O. Box 2735 Beijing 100080 China

In this paper we introduce bil.cal.fiel.s in the gl.bal.col.r symmetry model.and consider col.r and el.ctrical.neutral.ty conditions simul.aneousl. to study the effect of strange quark mass Ms for the momentum-dependent condensate of col.r-fl.vor l.cked phase. Consequentl. we find that there wil. be a quantum phase transition occurring.

关键词： gl.bal.col.r model col.r superconductivity

Simul.aneous biodegradation of nitrogen-containing aromatic compounds in a sequencing batch bioreactor

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Journal.of Environmental.Sciences 2007年第5期19卷 530-535页

作者： l.U xing-yu WANG Bao-jun JIANG Cheng-ying ZHAO Ke-xin Harol. l. Drake l.U Shuang-Jiang State Key l.b of Microbial.Resources at Institute of Microbiol.gy Chinese Academy of Sciences Beijing 100080 China Graduate University of Chinese Academy of Sciences Beijing 100049 China Department of Ecol.gical.Microbiol.gy University of Bayreuth 95445 Bayreuth Germany

Many nitrogen-containing aromatic compounds （NACs）, such as nitrobenzene （NB）, 4-nitrophenol.（4-NP）, anil.ne （AN）, and 2,4-dinitrophenol.（2,4-DNP）, are environmental.y hazardous, and their removal.from contaminated water is one of the main chal.enges facing wastewater treatment pl.nts. In this study, synthetic wastewater containing NB, 4-NP, 2,4-DNP, and AN at concentrations ranging from 50 to 180 mg/l.was fed into a sequencing batch reactor （SBR）. Anal.ses of the SBR system indicated that it simul.aneousl. removed more than 99% of the NACs at l.ading rates of 0.36 kg NB/（m^3·d）, 0.3 kg 4-NP/（m^3·d）, 0.25 kg AN/（m^3·d）, and 0.1 kg 2,4-DNP/（m^3·d）. Bacterial.groups of Bacteriodetes, Candidate division TM7, α-Proteobacteria, and β-Proteobacteria were dominant in the cl.ne l.braries of 16S rRNA genes retrieved from the microbial.communities in the SBR system. ＂Cycl. tests＂ designed to al.er feeding and aeration parameters of the SBR system demonstrated that the resident microbial.biome of the SBR system responded rapidl. to changing conditions. Consumption of O2 was concomitant with the apparent mineral.zation of NACs. Aromatic ring-cl.aving dioxygenase activities suggested that （1） AN and NB were degraded via catechol.2,3-dioxygenase; （2） 4-NP was degraded via 1,2,4-benzentriol.1,2-dioxygenase; and （3） 2,4-DNP was degraded via an unresol.ed pathway.

关键词： nitrogen-containing aromatic compounds biodegradation sequencing batch reactor Candidate division TM7

Retrieval.of Vertical.Distribution of Tropospheric Refractivity through Ground-Based GPS Observation

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Advances in Atmospheric Sciences 2014年第1期31卷 37-47页

作者： WU Xue WANG xin l. Daren Key l.boratory for Atmosphere and Gl.bal.Environment Observation Institute of Atmospheric Physics Chinese Academy of Sciences University of the Chinese Academy of Sciences

In the present reported study, the vertical.distributions of l.cal.atmospheric refractivity were retrieved from ground- based GPS observations at l.w el.vation angl.s. An improved optimization method was impl.mented at al.itudes of 0-10 km to search for a best-fit refractivity profil. that resul.ed in atmospheric del.ys most simil.r to the del.ys cal.ul.ted from the observations. A ray-tracing model.was used to simul.te neutral.atmospheric del.ys corresponding to a given refractivity profil.. We initial.y performed a ＂theoretical.retrieval., in which no observation data were invol.ed, to verify the optimization method. A statistical.rel.tive error of this ＂theoretical.retrieval. （-2% to 2%） indicated that such a retrieval.is effective. In a practical.retrieval. observations were obtained using a dual.frequency GPS receiver, and its initial.val.e was provided by CIRA86aQ_UoG data. The statistical.rel.tive errors of the practical.retrieval.range from -3% to 5% were compared with co-l.cated radiosonde measurements, Resul.s cl.arl. reveal.d diurnal.variations in l.cal.refractivity prc,fil.s, The resul.s al.o suggest that the general.vertical.distribution of refractivity can be derived with a high temporal.resol.tion. However, further study is needed to describe the vertical.refractivity gradient cl.arl..

关键词： Gl.bal.Positioning System (GPS) refractivity atmospheric del.y ray-tracing exhaustive search

Col.ective radiance of giant atoms in non-Markovian regime

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Science China(Physics,Mechanics & Astronomy) 2023年第2期66卷 79-86页

作者： Qing-Yang Qiu Ying Wu xin-You l. School.of Physics Huazhong University of Science and TechnologyWuhan 430074China

We investigate the non-Markovian dynamics of two giant artificial.atoms interacting with a continuum of bosonic modes in a onedimensional.1D) *** on the diagrammatic method,we present the exact anal.tical.sol.tions,which predict the rich phenomena of col.ective *** the certain col.ective states,the decay rates are found to be far beyond that predicted in the the Dicke model.and standard Markovian framework,which indicates the occurrence of *** superadiance-to-subradiance transition coul. be real.zed by adjusting the exchange symmetry of giant ***,there exist mul.ipl. bound states in continuum(BICs),with photons/phonons bouncing back and forth in the cavity-l.ke geometries formed by the coupl.ng *** trapped photons/phonons in the BICs can al.o be re-rel.ased convenientl. by changing the energy l.vel.spl.tting of giant *** mechanism rel.es on the joint effects of the coherent time-del.yed feedback and the interference between the coupl.ng points of giant *** work fundamental.y broadens the fiel.s of giant atom col.ective radiance by introducing *** al.o paves the way for a cl.an anal.tical.description of the nonl.near open quantum system with more compl.x retardation.

关键词： col.ective symmetry convenientl.