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Mercury Emission From Coal-fired Power Plants in China

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中国电机工程学报 2013年第29期33卷 I0001-I0014页

作者： YIN Libao ZHUO Yuqun XU Qisheng ZHU zhenwu du Wen AN Zhongyi Electric Power Research Institute of Guangdong Power Grid Corporation Tsinghua University

燃煤是最大的人为汞排放源之一，燃煤电厂的汞排放控制问题也越来越为人们所关注。该文将目前公布的中国电厂的汞排放数据进行筛选汇总，得到18个电厂的汞排放数据，通过对比和分析，总结出了符合我国燃煤电厂特点的一般性汞排放规律。... 详细信息

燃煤是最大的人为汞排放源之一，燃煤电厂的汞排放控制问题也越来越为人们所关注。该文将目前公布的中国电厂的汞排放数据进行筛选汇总，得到18个电厂的汞排放数据，通过对比和分析，总结出了符合我国燃煤电厂特点的一般性汞排放规律。结果表明：与美国煤种相比，我国的燃煤具有低氯、高灰的特性，这不利于汞的排放控制；循环流化床燃烧可能会因燃尽率的不同而较煤粉炉燃烧易获得较高的Hgp；空气污染控制设备的使用能够有效地减少汞排放，选择性催化还原＋静电除尘器／布袋除尘器＋石灰石-石膏湿法脱硫（SCR＋ESP／FF＋WFGD）组合的平均脱汞率可达71．48％；SCR的大规模应用可能会将汞大量转移到飞灰和脱硫石膏中，带来二次污染的问题。

关键词：燃煤电厂汞排放中国燃煤发电微量元素神经系统排放源污染物

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滑膜肉瘤差异表达基因生物信息学分析

中国体视学与图像分析 2018年第3期23卷 260-270页

作者：王庆宇林菲菲陈高扬李照彦杨麒巍杜珍武张桂珍宋旸吉林大学第二医院骨科长春130041

目的通过生物信息学分析方法筛选滑膜肉瘤组织中关键lncRNA、microRNAs和mRNA,阐述其互相作用机制以及关键信号通路。方法通过Gene Expression Omnibus(GEO)在线数据库检索并下载人滑膜肉瘤转录组数据,并应用基因本体论分析(Gene Ontolo... 详细信息

目的通过生物信息学分析方法筛选滑膜肉瘤组织中关键lncRNA、microRNAs和mRNA,阐述其互相作用机制以及关键信号通路。方法通过Gene Expression Omnibus(GEO)在线数据库检索并下载人滑膜肉瘤转录组数据,并应用基因本体论分析(Gene Ontology,GO)、京都基因和基因组百科全书(Kyoto Encyclopedia of Genes and Genomes,KEGG)、竞争性内源RNA(competing endogenous RNAs,ceRNAs)互作网络分析和蛋白互作网络分析(Protein-Protein Interaction,PPI)对差异表达基因进行深入分析。结果共4个数据集纳入本项研究包括GSE28866,GSE18546,GSE2719和GSE42977,包含21个滑膜肉瘤组织和56个正常对照组织,在这些数据集中共获取了12个差异表达的lncRNA,119个差异表达的miRNA和1637个差异表达的mRNA。构建ceRNA调控网络并展示lncRNA-miRNA-mRNA之间的调控作用,发现6个lncRNA (RP11-123K19. 1,RP11-261N11. 8,MEG3,FOXD2-AS1,CTD-2228K2. 7,LINC00982)和7个miRNA(hsa-miR-142-5p,hsamiR-548c-3p,hsa-miR-1224-5p,hsa-miR-133b,hsa-miR-206,hsa-miR-378-3p,hsa-miR-765)在滑膜肉瘤病变中具有重要作用。KEGG分析示滑膜肉瘤病变与47个信号通路显著相关(P <0. 05),特别是癌症中转录失调的信号通路(P=5. 56×10-8)。PPI互作网络分析展示了154种蛋白质,6种转录因子和10个信号通路之间的相互作用。结论通过对在线数据库进行生物信息学分析,滑膜肉瘤的多个关键分子靶点和信号通路被确认,有助于对滑膜肉瘤病变分子发病机制进行深入研究。

关键词：长链非编码RNA 生物信息学分析 ceRNA 滑膜肉瘤

The correlation between biotribological function and structural characteristics of bamboo rat teeth

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Biosurface and Biotribology 2022年第4期8卷 323-328页

作者： zhenwu Ning Zhongrong Zhou Jing Zheng Tribology Research Institute Key Laboratory of Advanced Technologies of MaterialsMinistry of EducationSouthwest Jiaotong UniversityChengduChina

Chinese bamboo rats consume a diet that consists mainly mechanically demanding *** ability of the rats to process food depends on the capacity of their teeth to resist wear during biting and *** mechanisms of the bamboo rat teeth were determined by investigating and correlating the structure and tribological properties of the *** rat's incisor has a cutting-edge cusp and outer enamel iron pigmentation,making the teeth harder,more resistant to acid attacks,and improving the resistance to ***,the incisor is designed to *** complex morphology at the macroscale,and the three-dimensional fabric body formed by densely packed rods and inter-rods at the microscale of molar enamel benefit molar rapid capture and effective breaking of bamboo,resisting the high stresses required to process bamboo without *** results of the structure-function relations of bamboo rat teeth in this study may provide new ideas for improving plant cutting and grinding tools.

关键词： bamboo rat teeth biotribological function enamel mechanical properties microstructure

Integrin-interacting protein Kindlin-2 induces mammary tumors in transgenic mice

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Science China(Life Sciences) 2019年第2期62卷 225-234页

作者： Bing Li Xiaochun Chi Jiagui Song Yan Tang Juan du Xiaokun He Xiaoran Sun zhenwu Bi Yunling Wang Jun Zhan Hongquan Zhang Department of Anatomy Histology and Embryology Key Laboratory of Carcinogenesis and Translational Research Ministry of Educationand State Key Laboratory of Natural and Biomimetic Drugs Peking University Health Science Center Institute of Cardiovascular Research Peking University Health Science Center

Kindlin-2, an integrin-interacting protein, regulates breast cancer progression. However, currently, no animal model to study the role of Kindlin-2 in the carcinogenesis of mammary gland is available. We established a Kindlin-2 transgenic mouse model using a mammary gland-specific promoter, mammary tumor virus(MMTV) long terminal repeat(LTR). Kindlin-2 was overexpressed in the epithelial cells of the transgenic mice. The mammary gland ductal trees were found to grow faster in MMTV-Kindlin-2 transgenic mice than in control mice during puberty. Kindlin-2 promoted mammary gland growth as indicated by more numerous duct branches and larger lumens, and more alveoli were formed in the mammary glands during pregnancy under Kindlin-2 overexpression. Importantly, mammary gland-specific expression of Kindlin-2 induced tumor formation at the age of 55 weeks on average. Additionally, the levels of estrogen receptor and progesterone receptor were decreased, whereas human epidermal growth factor receptor 2 and β-catenin were upregulated in the Kindlin-2-induced mammary tumors. These findings demonstrated that Kindlin-2 induces mammary tumor formation via activation of the Wnt signaling pathway.

关键词： Kindlin-2 breast cancer mouse mammary gland growth mammary tumorigenesis transgenic mouse

Structural survey of metal-covalent organic frameworks and covalent metal-organic frameworks

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International Journal of Minerals,Metallurgy and Materials 2023年第12期30卷 2297-2309页

作者： Chaozhi Xiong zhenwu Shao Jia’nan Hong Kexin Bi Qingsong Huang Chong Liu School of Chemical Engineering Sichuan UniversityChengdu 610065China Beijing Changping Hospital of Integrated Chinese and Western Medicine Beijing 102208China Department of Bioprocess Engineering Institute of BiotechnologyTechnische Universitat BerlinBerlin 10623Germany

This review offers an overview of the latest developments in metal-covalent organic framework(MCOF)and covalent metal-organic framework(CMOF)materials,whose construction entails a combination of reversible coordination and covalent bonding adapted from metal-organic frameworks(MOFs)and covalent organic frameworks(COFs),*** an emphasis on the MCOF and CMOF structures,this review surveys their building blocks and ***,the frameworks are classified based on the dimensions of their components(building blocks),namely,discrete building blocks and one-dimensional infinite building *** the first category,the materials are further divided into collections of two-and three-dimensional networks based on their *** the second category,the recently emerging MCOFs with woven structures are ***,the state-of-the-art in MCOF and CMOF chemistry has been laid out for promising avenues in future developments.

关键词： metal–covalent organic frameworks covalent metal-organic frameworks topology building block

Refractive-diffractive visual system for micro-display of LCOS

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Chinese Science Bulletin 2002年第16期47卷 1341-1345页

作者： ZHAO Qiuling WANG Zhaoqi MU Guoguang LU zhenwu Institute of Modern Optics Nankai UniversityKey Laboratory of Optics Information Science and TechnologyTianjin 300071China State Key Laboratory of Applied Optics Changchun Institute of Optics and Fine MechanicsChinese Academy of SciencesChangchun 130022China

One head-mounted display visual system for computer entertainment and three-dimensional display of virtual-reality was achieved, which consists of a hybrid re-fractive-diffractive eyepiece and a relay reflector. It can be used in micro-display of liquid crystal on silicon (LCOS) diagonal of 18 mm. The whole system has better performance, with 60° field of view, 10 mm exit pupil, 23 mm eye relief, and reduces weight and size.

关键词： refractive-diffractive micro-display relay reflector.

Adaptive Fault-Tolerant Power and Rate Control for Wireless Networks with Transmitter Failures and Uncertainties

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Adaptive Fault-Tolerant Power and Rate Control for Wireless ...

Genome-wide identification and characterization of the PbrATG family in Pyrus bretschneideri and functional analysis of PbrATG1a in response to Botryosphaeria dothidea

第25届中国控制与决策会议

作者： Cunwu Han Dehui Sun Song Bi Zhe Dong zhenwu Lei Beijing Key Laboratory of Fieldbus Technology and Automation North China University of Technology

ISBN: (纸本)9781467355339

This paper considers adaptive fault-tolerant power and rate control for wireless communication networks with transmitter faults, parameter uncertainties and bounded external disturbances. The adaptive fault-tolerant controller parameters are updated automatically through the on-line estimation of eventual faults to compensate for the fault effect on the network. It is proved that the resulting adaptive closed-loop system is uniformly bounded stable based on Lyapunov approach. Simulation results are given to demonstrate the effectiveness of the proposed controller.

关键词： Adaptive control power control rate control fault-tolerant control wireless networks uncertainty.

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Horticultural Plant Journal 2024年第2期10卷 327-340页

作者： Yun Wang Xun Sun zhenwu Zhang Zhihua Xie Kaijie Qi Shaoling Zhang Center of Pear Engineering Technology Research State Key Laboratory of Crop Genetics and Germplasm EnhancementCollege of HorticultureNanjing Agricultural UniversityNanjingJiangsu 210095China

The pear is an economic fruit that is widely planted around the world and is loved by people for its rich nutritional value. Autophagy is a self-protection mechanism in eukaryotes, and its occurrence often accompanied by the degradation of damaged substances in cells and the recycling of nutrients. Autophagy is one of the mechanisms through which plants respond to environmental stress and plays an important role in plant development and stress resistance. Functional studies of autophagy-related genes (ATGs) have been performed on a variety of plant species, but little information is available on the ATG family in pear (Pyrus bretschneideri Rehd). Therefore, we analyzed the evolutionary dynamics and performed a genome-wide characterization of the PbrATG gene family. A total of 28 PbrATG members were *** analysis showed that PbrATGs were more closely related to ATGs of European pear and apple. Evolutionary analysis revealed that whole-genome duplication (WGD) and dispersed duplication events were the main driving forces of PbrATG family *** analysis of different pear tissues showed that all the genes were expressed in different pear tissues, and different PbrATGs are expressed at different times and in different locations. Moreover, all PbrATGs also responded to different abiotic stresses, especially salt and drought stress, which elicited the highest expression levels. Pear seedlings were subsequently infected with Botryosphaeria dothidea (***). The results showed that different PbrATGs had different expression patterns at different infection stages. According to the gene expression data, PbrATG1a was selected as a key autophagy gene for further analysis. Silencing of PbrATG1a reduced the resistance of pear to B. dothidea, which resulted in increased lesions, reactive oxygen species (ROS) contents, antioxidant enzyme activity, and gene expression levels in the silenced pear seedlings after B. dothidea inoculation. In this s

关键词： Autophagy Pear PbrATGs Abiotic stress Botryosphaeria dothidea PbrATG1a

Adsorption characteristics of Pb(Ⅱ)ions on sulfidized hemimorphite surface under ammonium sulfate system

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International Journal of Mining Science and Technology 2023年第4期33卷 511-518页

作者： Xi Zhang Jiushuai Deng Yu Wang Sihao Li Honghui Zhao Chang Liu Zhitao Ma zhenwu Sun Key Laboratory of Separation and Processing of Symbiotic-Associated Mineral Resources in Non-ferrous Metal Industry School of Chemical&Environmental EngineeringChina University of Mining&Technology-BeijingBeijing 100083China Engineering Technology Research Center for Comprehensive Utilization of Rare Earth Rare Metal and Rare-Scattered in Non-ferrous Metal IndustryChina University of Mining and Technology-BeijingBeijing 100083China Inner Mongolia Research Institute China University of Mining and Technology-BeijingOrdos 017001China

In this work,the effect of ammonium sulfate on the adsorption characteristics of low-concentration Pb(Ⅱ)ions on the sulfidized hemimorphite surface was comprehensively *** results showed that ammonium sulfate could increase the maximum recovery of hemimorphite from 69.42%to 88.24%under a low concentration of Pb(Ⅱ)*** the hemimorphite surface pretreated with ammonium sulfate,the adsorption of Pb(Ⅱ)ions was enhanced and the main species of Pb adsorbed was changed from Pb―O/OH to *** was due to the larger amount of ZnS providing more effective adsorption sites for Pb components to generate Pb ***,the intensity of ZnS decreased with the formation of PbS,demonstrating that ZnS was covered by PbS which formed later on the mineral *** was beneficial for the adsorption of butyl xanthate on the hemimorphite surface to form more hydrophobic *** a result,ammonium sulfate played a crucial role in realizing the efficient recovery of hemimorphite.

关键词： Hemimorphite Sulfidation flotation Ammonium sulfate Pb(II)ions Adsorption characteristics