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Journal of Integrative Agriculture 2012年第8期11卷 1327-1332页

作者： WANG Mou ZHANG Ya YU Hui LAI Xin-sheng ZHU jin-long jiao jin-zhen LAN Xian-yong LEI Chu-zhao ZHANG Liang-zhi CHEN Hong Shaanxi Key Laboratory of Molecular Biology for Agriculture College of Animal Science and TechnologyNorthwest A&F UniversityYangling 712100P.R.China

Visfatin, like insulin, induces phosphorylation of signal transduction proteins that operatate downstream of the insulin receptor. The present study is focused on detecting deletion of visfatin gene and analyzing its effect on growth traits in six Chinese cattle breeds （Nangyang, Luxi, Qinchuan, Jiaxian Red, Grassland Red, and Chinese Holstein） using DNA sequencing, PCR-SSCP and PCR-RFLP methods. For the first time, a 6-bp deletion of visfatin was described and two alleles were revealed：W and D. The χ2-test analysis demonstrated that all breeds were in agreement with Hardy-Weinberg equilibrium （P〉0.05）. The associations of the novel 6-bp deletion of visfatin gene with growth traits of Nanyang cattle at 6-, 12-, 18-, and 24-mon-old were analyzed. Birth weight, 12- and 24-mon-old cattle with genotype WW had greater birth weight and average daily gain than genotype WD （P〈0.01 or P〈0.05）. These results suggest that the deletion may influence the birth weight and bodyweight in 12 mon-old cattle.

关键词： visfatin deletion mutation cattle

Dynamic Regulation of Hydrogen Bonding Networks and Solvation Structures for Synergistic Solar‑Thermal Desalination of Seawater and Catalytic Degradation of Organic Pollutants

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Nano-Micro Letters 2025年第2期17卷 548-565页

作者： Ming‑Yuan Yu jing Wu Guang Yin Fan‑zhen jiao Zhong‑zhen Yu jin Qu Beijing Key Laboratory of Advanced Functional Polymer Composites Beijing University of Chemical TechnologyBeijing 100029People’s Republic of China State Key Laboratory of Organic‑Inorganic Composites College of Materials Science and EngineeringBeijing University of Chemical TechnologyBeijing 100029People’s Republic of China

Although solar steam generation strategy is efficient in desalinating seawater,it is still challenging to achieve continuous solar-thermal desalination of seawater and catalytic degradation of organic ***,dynamic regulations of hydrogen bonding networks and solvation structures are realized by designing an asymmetric bilayer membrane consisting of a bacterial cellulose/carbon nanotube/Co_(2)(OH)_(2)CO_(3)nanorod top layer and a bacterial cellulose/Co_(2)(OH)_(2)CO_(3)nanorod(BCH)bottom ***,the hydrogen bonding networks inside the membrane can be tuned by the rich surface–OH groups of the bacterial cellulose and Co_(2)(OH)_(2)CO_(3)as well as the ions and radicals in situ generated during the catalysis ***,both SO_(4)^(2−)and HSO_(5)−can regulate the solvation structure of Na^(+)and be adsorbed more preferentially on the evaporation surface than Cl^(−),thus hindering the de-solvation of the solvated Na^(+)and subsequent nucleation/growth of ***,the heat generated by the solar-thermal energy conversion can accelerate the reaction kinetics and enhance the catalytic degradation *** work provides a flow-bed water purification system with an asymmetric solar-thermal and catalytic membrane for synergistic solar thermal desalination of seawater/brine and catalytic degradation of organic pollutants.

关键词： Solar steam generation Seawater desalination Catalytic degradation Bacterial cellulose Cobalt hydroxycarbonate nanorods

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

石墨烯负载MnO_x催化剂的制备及其低温NH_3-SCR活性

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物理化学学报 2015年第7期31卷 1383-1390页

作者：焦金珍李时卉黄碧纯华南理工大学环境与能源学院广州510006 华南理工大学工业聚集区污染控制与生态修复教育部重点实验室广州510006

通过改进的Hummers法合成氧化石墨烯(GO),随后采用水热法制备石墨烯负载锰氧化物(Mn Ox/GR)催化剂.考察了催化剂的低温NH3选择性催化还原(NH3-SCR)去除NOx的性能,并通过傅里叶变换红外(FTIR)光谱,拉曼(Raman)光谱,X射线衍射(XRD),透射电... 详细信息

通过改进的Hummers法合成氧化石墨烯(GO),随后采用水热法制备石墨烯负载锰氧化物(Mn Ox/GR)催化剂.考察了催化剂的低温NH3选择性催化还原(NH3-SCR)去除NOx的性能,并通过傅里叶变换红外(FTIR)光谱,拉曼(Raman)光谱,X射线衍射(XRD),透射电镜(TEM),N2吸附-脱附,X射线光电子能谱(XPS)及H2程序升温还原(H2-TPR)等多种表征手段对催化剂的结构及NH3-SCR性能进行分析.结果显示,不同Mn Ox负载量的Mn Ox/GR催化剂均展现了较好的低温SCR催化活性,且在负载量为20%(w)时活性最优.表征分析结果表明,制备的GO表面含有丰富的含氧基团,锰可以通过与含氧基团结合而负载到GO上;Mn Ox/GR催化剂中Mn Ox以纳米颗粒分散于石墨烯载体表面,且以多种氧化物(Mn O、Mn3O4和Mn O2)共同存在;负载量为20%(w)的催化剂中高价锰和表面吸附氧含量增加,低温区氧化还原能力增强及活性位点数量增加是其SCR活性提高的原因.

关键词：选择性催化还原氮氧化物石墨烯氧化石墨烯锰氧化物

Pathogenesis, diagnosis, and treatment of epilepsy: electromagnetic stimulation-mediated neuromodulation therapy and new technologies

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Neural Regeneration Research 2025年第4期20卷 917-935页

作者： Dian jiao Lai Xu zhen Gu Hua Yan Dingding Shen Xiaosong Gu Academy of Medical Engineering and Translational Medicine Tianjin UniversityTianjinChina Key Laboratory of Advanced Drug Delivery Systems of Zhejiang Province College of Pharmaceutical SciencesZhejiang UniversityHangzhouZhejiang ProvinceChina Affiliated Hospital of Nantong University NantongJiangsu ProvinceChina

Epilepsy is a severe,relapsing,and multifactorial neurological *** regarding the accurate diagnosis,prognosis,and in-depth pathogenesis are crucial for the precise and effective treatment of *** pathogenesis of epilepsy is complex and involves alterations in variables such as gene expression,protein expression,ion channel activity,energy metabolites,and gut microbiota *** results are lacking for conventional treatments for *** resection of lesions,drug therapy,and non-drug interventions are mainly used in clinical practice to treat pain associated with ***-pharmacological treatments,such as a ketogenic diet,gene therapy for nerve regeneration,and neural regulation,are currently areas of research *** review provides a comprehensive overview of the pathogenesis,diagnostic methods,and treatments of *** also elaborates on the theoretical basis,treatment modes,and effects of invasive nerve stimulation in neurotherapy,including percutaneous vagus nerve stimulation,deep brain electrical stimulation,repetitive nerve electrical stimulation,in addition to non-invasive transcranial magnetic stimulation and transcranial direct current *** studies have shown that electromagnetic stimulation-mediated neuromodulation therapy can markedly improve neurological function and reduce the frequency of epileptic ***,many new technologies for the diagnosis and treatment of epilepsy are being ***,current research is mainly focused on analyzing patients’clinical manifestations and exploring relevant diagnostic and treatment methods to study the pathogenesis at a molecular level,which has led to a lack of consensus regarding the mechanisms related to the disease.

关键词： diagnosis drug treatment electroencephalography epilepsy monitoring epilepsy nerve regeneration neurostimulation non-drug interventions pathogenesis prediction

浏阳黑山羊胃肠道不同部位重要功能微生物的数量分布特征研究

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畜牧兽医学报 2013年第10期44卷 1590-1599页

作者：焦金真王芃芃汤少勋周传社谭支良中国科学院亚热带农业生态研究所亚热带农业生态过程重点实验室湖南省畜禽健康养殖工程技术中心农业部中南动物营养与饲料科学观测实验站长沙410125 中国科学院大学北京100049

旨在研究山羊胃肠道不同部位微生物组成及分布特征,以期为探索胃肠道不同部位微生物的营养代谢功能奠定基础。选择山羊胃肠道具有明确已知功能特征的甲烷菌和细菌来进行qRT-PCR定量研究。细菌中又选择了2个属(乳杆菌和双岐杆菌),5个种(... 详细信息

旨在研究山羊胃肠道不同部位微生物组成及分布特征,以期为探索胃肠道不同部位微生物的营养代谢功能奠定基础。选择山羊胃肠道具有明确已知功能特征的甲烷菌和细菌来进行qRT-PCR定量研究。细菌中又选择了2个属(乳杆菌和双岐杆菌),5个种(4种纤维降解菌和栖瘤胃普雷沃氏菌)。选取4只体况良好、年龄相同(1岁半左右)、体重相近((20.0±1.2)kg)的浏阳黑山羊作为试验动物的4个重复。同时屠宰4只羊,取瘤胃、十二指肠、空肠、回肠、盲肠、结肠和直肠的食糜,提取总DNA,通过构建重组标准质粒来对这些微生物进行绝对qRT-PCR定量研究。结果,本研究已成功构建细菌及甲烷菌的标准质粒。健康状况良好的成年浏阳黑山羊胃肠道不同部位的微生物存在差异(P<0.01),同时胃肠道相同部位的微生物在数量上也存在着差异。除溶纤维丁酸弧菌外,检测的微生物均是在瘤胃中最多。在后肠道、空肠和十二指肠的微生物数量最少,回肠的微生物较多,以盲肠、结肠和直肠中的微生物最多。山羊胃肠道不同部位重要功能微生物的数量分布情况差异极显著(P<0.01),但总体上是瘤胃最多,盲肠、结肠、直肠居中,回肠次之,十二指肠和空肠最少。重要功能微生物分布特征的差异为探索胃肠道不同部位微生物的营养代谢功能奠定基础。

关键词：胃肠道实时荧光定量PCR 微生物浏阳黑山羊

Modeling and optimization for oil well production scheduling

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Chinese Journal of Chemical Engineering 2016年第10期24卷 1423-1430页

作者： jin Lang jiao Zhao The Institute of Industrial Engineering and Logistics Optimization Northeastern University State Key Laboratory of Synthetical Automation for Process Industries Northeastern University School of Automobile Chang'an University

In this paper,an oil well production scheduling problem for the light load oil well during petroleum field exploitation was *** oil well production scheduling was to determine the turn on/off status and oil flow rates of the wells in a given oil reservoir,subject to a number of constraints such as minimum up/down time limits and well *** problem was formulated as a mixed integer nonlinear programming model that minimized the total production operating cost and start-up *** to the NP-hardness of the problem,an improved particle swarm optimization(PSO) algorithm with a new velocity updating formula was developed to solve the problem *** experiments on randomly generated instances were carried out to evaluate the performance of the model and the algorithm's *** with the commercial solver CPLEX,the improved PSO can obtain high-quality schedules within a much shorter running time for all the instances.

关键词： Oil well production Scheduling Mixed integer nonlinear programming(MINLP)Improved partide swarm optimization

Peak-like three-dimensional CoFe_(2)O_(4)/carbon nanotube decorated bamboo fabrics for simultaneous solar-thermal evaporation of water and photocatalytic degradation of bisphenol A

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Journal of Materials Science & Technology 2024年第12期179卷 40-49页

作者： Rui-Jie Pan jing Wu jin Qu Tingting Zhang Fan-zhen jiao Mang Zhao Meng-Yan Han Xiaofeng Li Zhong-zhen Yu State Key Laboratory of Organic-Inorganic Composites College of Materials Science and EngineeringBeijing University of Chemical TechnologyBeijing 100029China Beijing Key Laboratory of Advanced Functional Polymer Composites Beijing University of Chemical TechnologyBeijing 100029China

Catalytic CoFe_(2)O_(4) and solar-thermal carbon nanotube decorated bamboo fabrics(CCBF)are fabricated for integrating efficient solar steam generation from wastewater with catalytic degradation of its organic *** to the numerous porous channels and polar groups of bamboo fabric and the efficient solar-thermal energy conversion of black carbon nanotubes,the porous and hydrophilic CCBF exhibits fast upward transport of water,efficient solar light absorption,and high solar-thermal energy conversion *** decorated CoFe_(2)O_(4) not only enhances the solar-thermal energy conversion efficiency of CCBF but also activates potassium peroxymonosulfate to generate abundant highly active species for catalytic degradation of bisphenol A(BPA).Furthermore,folding the CCBF into a peak-like 3D evaporator can en-hance solar energy utilization,and gain environmental energy for promoting solar-thermal water evapo-ration and catalytic degradation *** 3D CCBF evaporator achieves a water evaporation rate of 2.72 kg m^(-2) h^(-1) under 1-sun ***,100%of the BPA in the seawater can be degraded within 10 *** exceptional high purification efficiency of 27.72 kg m^(-2) h^(-1) is achieved with the 3D evaporator during a long-term treatment of BPA-containing seawater under 1-sun *** work demonstrates efficient purification of seawater/wastewater with both metal ions and organic pollutants by simultaneous solar-thermal evaporation of water and catalytic degradation of organic pollutants.

关键词： Solar-thermal water evaporation Seawater desalination Catalytic degradation Carbon nanotubes CoFe_(2)O_(4)

Asymmetrical Transport Distribution Function: Skewness as a Key to Enhance Thermoelectric Performance

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Research 2022年第4期2022卷 397-410页

作者： jin-Cheng zhen Department of Physics Xiamen UniversityXiamen 361005China Department of Physics and Department of New Energy Science and Engineering Xiamen University MalaysiaSepang 43900Malaysia

How to achieve high thermoelectric figure of merit is still a scientific *** solving the Boltzmann transport equation,thermoelectric properties can be written as integrals of a single function,the transport distribution function(TDF).In this work,the shape effects of transport distribution function in various typical functional forms on thermoelectric properties of materials are systematically *** is found that the asymmetry of TDE,characterized by skewness,can be used to describe universally the trend of thermoelectric *** defining symmetric and asymmetric TDF functions,a novel skewness is then constructed for thermoelectric *** is demonstrated,by comparison with ab initio calculations and experiments,that the proposed thermoelectric skewness not only perfectly captures the main feature of conventional skewness but also is able to predict the thermoelectric power *** comparison confirms the unique feature of our proposed thermoelectric skewness,as well as its special role of connection between the statistics of TDF and thermoelectric properties of *** is also found that the thermoelectric performance can be enhanced by increasing the asymmetry of ***,it is also interesting to find that the thermoelectric transport properties based on typical quantum statistics(Fermi-Dirac distributions)can be well described by typical shape parameter(skewness)for classical statistics.

关键词： properties materials Fermi

ADAPTIVE TRIMMED MEAN AS A LOCATION ESTIMATE

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Journal of Systems Science & Complexity 2012年第5期25卷 973-986页

作者： Siming LI Yong LI jiao jin Department of Statistics and Financial Mathematics School of Mathematical SciencesKey Laboratory of Mathematics and Complex SystemsMinistry of EducationBeijing Normal University

The trimmed mean is one of the most common estimators of location for symmetrical distributions, whose effect depends on whether the trim rate matches the proportion of contaminated data. Based on the geometric characteristics of the curve of the trimmed variance function, the authors propose two kinds of adaptive trimmed mean algorithms. The accuracy of the estimators is compared with that of other often-used estimates, such as sample mean, trimmed mean, trimean, and median, by means of simulation method. The results show that the accuracy of the adaptive derivative optimization trimmed mean method is close to the optimum performance in case of medium contamination （the contamination rate is less than 50%）. Under high contamination situation （the contamination rate equals 8070）, the performance of the estimates is comparable to that of the median and is superior to other counterparts.

关键词： Adaptive location parameter robust trimmed mean.