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畜牧与饲料科学 2011年第9期32卷 125-126页

作者： WANG li-fang ma yan-fen GAO Min LU De-xun Institute of Animal Nutrition Inner Mongolia Academy of Agricuhural and Animal Husbandry Sciences Hohhot 010031China

Introduction It has been well established that plant oil or fish oil could enhance cis-9 trans-11CLA content in the ruminant food ***,it is generally accepted that adding unsaturated fatty acid to ruminant diets may e... 详细信息

关键词：畜牧业饲料市场标准化学成分 CLA

Effects of Chrysanthemum coronarium Extract on Fermentation Characteristics and Biohydrogenation of Polyunsaturated Fatty Acids in vitro Batch Culture

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畜牧与饲料科学 2011年第9期32卷 129-130页

作者： WANG li-fang ma yan-fen GAO Min LU De-xun Institute of Animal Nutrition Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences Hohhot 010031 China

Introduction Cis-9,trans-11 CLA has been shown to be potentially health-promoting CLA in many animal *** C18:1 trans-11 fatty acid(VA) is also desirable as a product flowing from the rumen,because the flow from the ru... 详细信息

关键词：畜牧业饲料市场标准化学成分 CLA

Morphology engineering of ZnO micro/nanostructures under mild conditions for optoelectronic application

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International Journal of Minerals,Metallurgy and materials 2025年第2期32卷 498-503页

作者： liang Chu Haoyu Shen Hudie Wei Hongyu Chen Guoqiang ma Wensheng yan Institute of Carbon Neutrality and New Energy&School of Electronics and Information Hangzhou Dianzi UniversityHangzhou 310018China School of Applied Physics and materials Wuyi UniversityJiangmen 529020China

Zinc oxide(ZnO)serves as a crucial functional semiconductor with a wide direct bandgap of approximately 3.37 *** reaction is commonly used in the synthesis of ZnO micro/nanostructures,given its low cost,simplicity,and easy ***,ZnO morphology engineering has become desirable through the alteration of minor conditions in the reaction process,particularly at room *** this work,ZnO micro/nanostructures were synthesized in a solution by varying the amounts of the ammonia added at low temperatures(including room temperature).The formation of Zn^(2+)complexes by ammonia in the precursor regulated the reaction rate of the morphology engineering of ZnO,which resulted in various structures,such as nanoparticles,nanosheets,microflowers,and single ***,the obtained ZnO was used in the optoelectronic application of ultraviolet detectors.

关键词： morphology engineering low temperature ZnO nanosheets microflowers ultraviolet detector

Local magnetic moment oscillation around an Anderson impurity on graphene

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 192-201页

作者： Shuai li Zhen ma Jin-Hua Gao School of Science Hebei University of Science and Technology School of Electronics and Information Zhengzhou University of Light Industry School of Physics and Wuhan National High magnetic Field Center Huazhong University of Science and Technology

We theoretically investigate the spin resolved Friedel oscillation （FO） and quasiparticle interference （QPI） in graphene induced by an Anderson *** the impurity becomes magnetic,the resulted FO becomes spin dependent,which gives rise to a local magnetic moment oscillation with an envelop decaying as r-2in real space in the doping ***,at half filling,the electron density and local magnetic moment will not oscillate but decay as *** spin resolved FO has both sublattice and spin ***,the local magnetic moment decay at half filling only occurs at one sublattice of graphene,which is quite like the phenomenon observed in the STM experiment (***ález-Herrero et al.,Science 352,437 （2016）).We further give an analytic formula about such spin dependent FO based on the stationary phase ***,we study the interference of quasiparticles around the magnetic impurity by calculating the spin dependent Fourier-transformed local density of states （FT-LDOS）.Our work gives a comprehensive understanding about the local magnetic moment oscillation around an Anderson impurity on graphene.

关键词： Friedel oscillation local magnetic moment graphene Anderson impurity

Aneuploidy in Early Miscarriage and its Related Factors

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Chinese Medical Journal 2015年第20期128卷 2772-2776页

作者： Chan-Wei Jia li Wang Yong-lian Lan Rui Song li-Yin Zhou Lan Yu yang yang Yu liang Ying li yan-Min ma Shu-Yu Wang Department of Reproduction Beijing Obstetrics and Gynecology Hospital Capital Medical University Beijing 100026 China

Background： Genetic factors are the main cause of early miscarriage. This study aimed to investigate aneuploidy in spontaneous abortion by fluorescence in situ hybridization （FISH） using probes for 13, 16, 18, 21, 22, X and Y chromosomes. Methods： A total of 840 chorionic samples from spontaneous abortion were collected and examined by FISH. We analyzed the incidence and type of abnormal cases and sex ratio in the samples. We also analyzed the relationship between the rate of aneuploidy and parental age, the rate of aneuploidy between recurrent abortion and sporadic abortion, the difference in incidence of aneuploidy between samples from previous artificial abortion and those from no previous induced abortion. Results： A total of 832 samples were finally analyzed. 368 （44.23%） were abnormal, in which 84.24% （310/368） were aneuploidies and 15.76% （58/368） were polyploidies. The first was trisomyl6 （121/310）, followed by trisomy 22, and X monosomy. There was no significant difference in the rate ofaneuploidy in the advanced maternal age group （≥35 years old） and young maternal age group （〈35 years old）. However, the rate oftrisomy 22 and the total rate of trisomies 21, 13, and 18 （the number oftrisomy 21 plus trisomy 13 and trisomy 18 together） showed significantly different in two groups. We found no skewed sex ratio. There was no significant difference in the rate of aneuploidy between recurrent miscarriage and sporadic abortion or between the samples fi＇om previous artificial abortion and those from no previous artificial abortion. Conclusions： Aneuploidy is a principal factor of miscarriage and total parental age is a risk factor. There is no skewed sex ratio in spontaneous abortion. There is also no difference in the rate of aneuploidy between recurrent abortion and sporadic abortion or between previous artificial abortion and no previous induced abortion.

关键词： Aneuploidy Artificial Abortion In Situ Hybridization Miscarriage Parental Age Recurrent Abortion Sex Ratio

magnetron sputtered nickel oxide with suppressed interfacial defect states for efficient inverted perovskite solar cells

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Journal of Energy Chemistry 2025年第1期100卷 348-355页

作者： Guoqiang ma Qin Tan Zhaoning li Jingwei Xiu Jiafeng Wang Tianle Cheng Dong He Qiang Sun Xuhang ma Francesco Lamberti Zhubing He Department of materials Science and Engineering Institute of Innovative Materials (I2M) Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG)Southern University of Science and Technology (SUSTech) Core Research Facilities Southern University of Science and Technology Department of Chemical Sciences Department of Industrial Engineering University of Padova

Widely used spin-coated nickle oxide （NiOx） based perovskite solar cells often suffer from severe interfacial reactions between the NiOxand adjacent perovskite layers due to surface defect states,which inherently impair device performance in a long-term view,even with surface molecule *** this study,we developed high-quality magnetron-sputtered NiOxthin films through detailed process optimization,and compared systematically sputtered and spin-coated NiOxthin film surfaces from materials to *** sputtered NiOxfilms exhibit improved crystallinity,smoother surfaces,and significantly reduced Ni3+or Ni vacancies compared to their spin-coated ***,the interface between the perovskite and sputtered NiOxfilm shows a substantially reduced density of defect *** solar cells （PSCs） fabricated with our optimally sputtered NiOxfilms achieved a high power conversion efficiency （PCE） of up to 19.93%and demonstrated enhanced stability,maintaining 86.2% efficiency during 500 h of maximum power point tracking under one standard sun ***,with the surface modification using (4-(2,7-dibromo-9,9-dimethylacridin-10（9H）-yl)butyl)p hosphonic acid （DmacPA）,the device PCE was further promoted to 23.07%,which is the highest value reported for sputtered NiOxbased PSCs so far.

关键词： Nickle oxide magnetron sputter Defect Stability Perovskite solar cell

maternal to zygotic transition and paternal involvement in the onset of embryogenesis

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Maternal to zygotic transition and paternal involvement in t...

MoMET13 Coding Methylenetetrahydrofolate Reductase 1 is Essential for Sporulation and Pathogenicity in magnaporthe oryzae

中国植物学会植物细胞生物学2010年学术年会

作者： Jing Zhao,Hai-ping Xin,liang-huan Qu,Jue Ning,Xiong-bo Peng,Ting-ting yan,li-gang ma, Shi-sheng li,Meng-Xiang Sun

The maternal-to-zygotic transition(MZT) is characterized by the turnover of zygote development from maternal to zygotic control and has been extensively studied in animals.A majority of studies have suggested that early embryogenesis is maternally controlled and that the zygotic genome remains transcriptionally inactive prior to the ***,little is known about the MZT in higher plants,and its timing and impact remain ***,we constructed cDNA libraries from tobacco(Nicotiana tabacum) egg cells,zygotes,and two-celled embryos for gene expression profiling analysis,followed by RT-PCR *** analyses,together with experiments using zygote microculture coupled with transcription inhibition,revealed that a marked change in transcript profiles occurs approximately 50 h after fertilization and that the MZT is initiated prior to zygotic division in *** maternal transcripts deposited in egg cells support several early developmental processes,they appear to be insufficient for zygotic polar growth and subsequent cell ***,we propose that de novo transcripts are likely required to trigger embryogenesis in later zygotes in tobacco. We also confirmed that two clusters of sperm transcripts were detected in zygotes about 10 h after fertilization,offering new examples of paternal transcripts that may be involved in zygote activation or/and early embryogenesis.

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MoMET13 Coding Methylenetetrahydrofolate Reductase 1 is Esse...

季节非对称升温对喀斯特土壤CO_2释放的影响

中国植物病理学会第九届全国会员代表大会暨2010年学术年会

作者： Hong Wang Ya li Xia yan Weibin ma Zhengyi Wang~* (State Key Laboratory for Rice Biology,Biotechnology Institute,Zhejiang University,Hangzhou,310029)

A novel mutant WH-672,which is defective in conidiation and pathogenicity,was identified by T-DNA mutagenesis in magnaporthe *** of the genomic DNA sequence flanking the T-DNA integration site of the mutant showed the exogenous T-DNA was inserted into a putative gene MoMET13,which encodes methylenetetrahydrofolate reductase *** enzyme catalyzes the reduction of 5,10-methylenetetrahydrofolate to 5-methyltetrahydrofolate,a co-substrate in the synthesis of methionine from homocysteine. Consistent with the T-DNA phenotypes of WH-672,targeted gene deletion mutants of MoMET13 were also nonpathogenic to both susceptible barley and rice,and were unable to produce any conidia on various *** phenotypes were complemented by reintroduction of the gene MoMET13 into the *** analysis showed that magnaporthe genome contains two putative genes coding methylenetetrahydrofolate reductase:MoMET13 and *** or deletion of the MoMET13 resulted in methionine auxotrophy. The defects of the mutants,such as vegetative growth and conidiation,could be complemented by adding>1 mM methionine,but not by ***-PCR analysis showed that deletion of MoMET13 could increase expression of MoMET12 up to 4 *** results suggested that MoMET13 coding methylenetetrahydrofolate reductase 1 is essential for sporulation and pathogenicity in magnaporthe oryzae.

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环境科学 2018年第4期39卷 1962-1970页

作者：唐国勇张春华刘方炎李昆马艳中国林业科学研究院资源昆虫研究所昆明650224

全球变暖呈现季节非对称升温特征,若在研究全球变化对生态系统的影响时未充分考虑该特征,很可能导致研究结果失真.基于红外线辐射增温法,野外模拟不同升温情景下喀斯特土壤CO_2释放的短期(4 a)特征.升温情景包括不升温(对照)、对称升温... 详细信息

全球变暖呈现季节非对称升温特征,若在研究全球变化对生态系统的影响时未充分考虑该特征,很可能导致研究结果失真.基于红外线辐射增温法,野外模拟不同升温情景下喀斯特土壤CO_2释放的短期(4 a)特征.升温情景包括不升温(对照)、对称升温(全年同步升温2.0℃)和非对称升温(冬春/夏秋季升温幅度为2.5℃/1.5℃、3.0℃/1.0℃、3.5℃/0.5℃和4.0℃/0℃).结果表明,与对照相比,升温样地土壤CO_2通量显著提高,增加了0.26μmol·(m^2·s)^(-1),增幅为17.41%,其中冬春季通量增加了0.23μmol·(m^2·s)^(-1).在平均升温2.0℃情景下,土壤CO_2释放的温度系数(Q_(10))变幅为1.53~3.24之间,平均值为2.23.对称升温处理中夏秋季土壤CO_2通量升温贡献率(80%)远高于冬春季(20%);非对称升温处理夏秋季和冬春季平均升温贡献率相当(46%和54%).5个升温情景下CO_2通量和Q10呈现随升温的非对称性增加而降低的趋势,其中对称升温处理CO_2通量显著高于中度、高度和极端非对称升温处理.各处理中,夏秋季Q10均大于冬春季,这可能与土壤含水量、土壤微生物、可溶性无机碳和植被生长等有关.研究揭示,基于对称升温情景可能会高估全球变暖对喀斯特土壤CO_2释放的影响.

关键词：非对称升温对称升温温度系数(Q10) 土壤CO2通量喀斯特

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环境监测技术在我国的发展现状及方向分析

化工设计通讯 2016年第7期42卷 161-162页

作者：李马燕山东省东阿县环境保护局环境检测站山东东阿252200

环境监测主要是利用技术来控制以及评价环境,以使环境得到更好的保护。随着我国环境污染程度逐步加剧,环境监测的作用越发凸显,但在环境监测技术的使用过程中,也出现了很多的问题,面对着很多的挑战以及机遇。主要探究了环境监测技术的... 详细信息

环境监测主要是利用技术来控制以及评价环境,以使环境得到更好的保护。随着我国环境污染程度逐步加剧,环境监测的作用越发凸显,但在环境监测技术的使用过程中,也出现了很多的问题,面对着很多的挑战以及机遇。主要探究了环境监测技术的发展所存在的各个问题,以及推动环境监测技术更好更快发展的有效途径。

关键词：环境监测技术现状发展