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In-situ fabrication of on-chip 1.'-MoTe_(2)/Ge Schottky junction photodetector for self-powered broadband infrared imaging and position sensing

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Nano Research 2024年第6期17卷 5587-5594页

作者： Menglei zhu Kunxuan Liu Di Wu Yunrui Jiang {1. Li Pei Lin Zhifeng Shi Xinjian Li Ran Ding Yalun Tang {1.chao Yu Longhui Zeng School of Physics and Microelectronics and Key Laboratory of Material PhysicsZhengzhou UniversityZhengzhou 450052China Department of Electrical and Computer Engineering University of California San DiegoLa JollaCA 92093USA State Key Laboratory of Integrated Optoelectronics College of Electronic Science and EngineeringJilin UniversityChangchun 130012China Key Laboratory of Multifunctional Nanomaterials and Smart Systems Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123China

High-sensitivity room-temperature multi-dimensional infrared(IR)detection is crucial for military and civilian ***,the gapless electronic structures and unique optoelectrical properties have made the two-dimensional(2D)topological semimetals promising candidates for the realization of multifunctional optoelectronic ***,we demonstrated the in-situ construction of high-performance 1.’-MoTe_(2)/Ge Schottky junction device by inserting an ultrathin AlOx passivation *** good detection performance with an ultra-broadband detection wavelength range of up to 1..6 micron,an ultrafast response time of~1.0 ns,and a large specific detectivity of over 1.9 Jones in mid-infrared(MIR)range surpasses that of most 2D materials-based IR sensors,approaching the performance of commercial IR *** on-chip integrated device arrays with 64 functional detectors feature high-resolution imaging capability at room *** these outstanding detection features have enabled the demonstration of position-sensitive detection *** demonstrates an exceptional position sensitivity of 1..9 mV/mm,an outstanding nonlinearity of 6.44%,and commendable trajectory tracking and optoelectronic demodulation *** study not only offers a promising route towards room-temperature MIR optoelectronic applications,but also demonstrates a great potential for application in optical sensing systems.

关键词： MoTe_(2) broadband photodetection Schottky junction imaging position sensitive detector

Estimating health damage cost from secondary sulfate particles—a case study of Hunan Province,china

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Journal of Environmental sciences 2003年第5期15卷 611-617页

作者： HAO Ji ming, LI Ji, YE xue mei, {1. Tian le (Department of Environmental Science and Engineering, Tsinghua university, beijing 1.0084, china. ) Department of Environmental Science and Engineering Tsinghua University Beijing 100084 China

china's coal dominated energy pattern has resulted in large amount of SO 2 emissions. Estimate of the sulfur related health damage cost is necessary to help perform systematic cost benefit analysis and set national energy and emissions control priorities. Current researches were confined to gaseous SO 2 in urban areas; however, secondary sulfate (SO 2- 4) particles can exert serious impact in a wider region. Based on the concept of “intake fraction', CALPUFF long range dispersion model and 1.0 sample emission sources, multiple regression equation was obtained with good correlation( r =0 85), which illustrates that populations were key parameters to determine intake fraction but source characteristics were insignificant. Based on the formula and the population distribution data, county level intake fractions were mapped for Hunan Province(range: 1. 1.1. -6 -3 2×1. -6 ) of china. A combination of county level SO 2 emissions with the intake fractions yields a total 1. 98 tons of sulfate(SO 2- 4) inhalation, and resulting total health damage cost to be 0 76(willingness to pay approach, WTP) or 0 1.(human capital approach, HC) billion USD in 1.97, about 2.1. or 0 45% of GDP in Hunan in 1.97. Average health damage cost per ton of SO 2 emission is 930(WTP) or 200 USD(HC). The results demonstrated that more stringent regulation should be forced.

关键词： intake fraction health impact Hunan Province sulfate regression analysis

STUDY ON ECOLOGICAL SPACE OF URBAN AGGLOMERATION-Taking Wuxi City as an Example

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Chinese Geographical Science 2002年第4期 33-40页

作者： xue Dong-qian 1.2 ,ZHANG Xiao-jun 1. (1.Institute of Geographical {1. and Natural Resources Research,t he Chinese Academy of {1.,beijing 1.01.1.P.R.china 2.college of Tourism and Environment,Shaanxi Normal university,Xi' an 71.062,P.R.china) Institute of Geographical sciences and Natural Resources Research， the Chinese Academy of sciences， beijing 1.01.1. P. R. china college of Tourism and Environment， Shaanxi Normal {1.， Xi'an 71.062， P. R. china Institute of Geographical sciences and Natural Resources Research， the Chinese Academy of sciences， beijing 1.01.1. P. R. china

From the angle of ecology,urban agg lomeration presents relevant types of landscape structure,which in-clude Patch,Corridor and *** are different landscape feature s and different problems in differen t development *** paper has put forward fi ve basic conditions for security pattern of landscape ecology of urban agglomeration,described quantitatively the featu res for landscape ecology in Wuxi,an d analyzed ecological background of spatial expan-sion and spatial organization of urb an development in *** the angle of ecological land use and non-ecological land use,the paper has analyzed the featu res of land use and ecological distribution of land in the urban *** s patial mod-el of cities and towns in Wuxi is composed of one metropolis,two urban zones and three development *** th esis has planned preliminarily ecologic al protection network at four levels in the urban region according to four *** last,combining landscape ecology with ur ban space,a tentative security pattern of landscape ecology has been pla nned in Wux-i,namely Source-Buffer Zone and Metropolis,Radiating Routes and Expan sion Direction of City,Strategic Point and Interac-tion between Cities and Towns,Inter-Source Linkage-Corridor of a Stabl e Landscape Structure.

关键词： urban agglomeration spatial stru cture landscape structure security pattern of landscape ecology CLC number:F293.2 F301.24Document code:A Article ID-0063(2002)00-0321.08

A mixed-valence polyoxometalate-based 3D inorganic framework cathode material for high-efficiency rechargeable AZIBs

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Rare Metals 2024年第8期43卷 3677-3691页

作者： Qing Han Hao-Ran Xiao Tao Zhou Bing-Chuan Li Liu Yang Ling-Ling Xie xue-Jing Qiu Xian-Yong Wu Li-Min {1. Xiao-Yu Cao School of Chemistry and Chemical Engineering Henan University of TechnologyZhengzhou 450001China Key Laboratory of High Specific Energy Materials for Electrochemical Power Sources of Zhengzhou City Zhengzhou 450001China college of Materials Engineering Henan University of EngineeringZhengzhou450007China School of Environmental Engineering Henan University of TechnologyZhengzhou 450001China Department of Chemistry University of Puerto Rico-Rio Piedras CampusSan JuanPR 00925USA

The global trend towards new energy storage systems has stimulated the development of electrochemical energy storage *** these technologies,rechargeable aqueous zinc-ion batteries(AZIBs)have attracted considerable interest as a potential alternative to lithium-ion batteries(LIBs)due to their affordable cost,environmental compatibility and high safety *** this study,a high-quality electrode for AZIBs has been successfully developed using a dehydrated mixed-valence polyoxometalate-based three-dimensional(3D)inorganic framework material known as[H_6Mn_(3)V^Ⅳ_(1.)V-^Ⅴ_(4O)_(46)(H_2O)_(1.)](3D-MnVO).This innovative 3D-MnVO material is built from the alternate connections of{V_(1.)O_(46)}"sphere-shaped"clusters andμ_(2)-{Mn(H_(2)O)_(4)}bridges,where each{V_(1.)O_(46)}cluster is surrounded by three pairs of vertically distributed{Mn(H_(2)O)_(4)}units,thus resulting in the 3D interpenetrating grid-like network from the infinite[-{V_(1.)O_(46)}-μ_(2)-Mn(H_(2)O)_(4)-{V_(1.)O_(46)}]_∞chains in three mutually perpendicular *** 3D framework structure of 3D-MnVO possesses abundant oxygen vacancies,spacious and multi-level interconnected channels for ion transport,which facilitates the efficient intercalation/deintercalation of hydrated Zn^(2+)into the pores of the primary structure via the intercalation capacitance *** a result,the 3D-MnVO electrode exhibits excellent diffusion rates and minimal interfacial *** a current density of 0.1.A·g^(-1.,the 3D-MnVO cathode delivers a commendable discharge capacity of1.0.5 mAh·g^(-1.with 81.6%capacity retention after1.0 charge/discharge ***,even at a high current density of 1.0 A·g^(-1.,the 3D-MnVO electrode delivers a remarkable reversible capacity of1.8.9 mAh·g^(-1..Our research results provide valuable insights into the development of advanced polyoxometalate-based 3D inorganic framework electrode materials for high-performance rechargeable AZIBs.

关键词： Cathode Polyoxometalate 3D inorganic framework Zinc-ion batteries Energy storage mechanism

Impact of Long-Term Atrazine Use on Groundwater Safety in Jilin Province, china

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Journal of Integrative Agriculture 2013年第2期12卷 305-313页

作者： GENG Yue MA Jing JIA Ran xue Li-qin TAO Chuan-jiang LI Chong-jiu MA Xiao-dong LIN Yan college of Science China Agricultural University Institute for the Control of Agrochemicals Ministry of Agriculture

The long-lasting application of representative herbicide atrazine （ATR） has given rise to the accumulation of its residues in the groundwater. To investigate the impact of long-term ATR use on groundwater safety, the residues of ATR and its metabolites, desethylatrazine （DEA）, deisopropylatrazine （DIA） and hydroxyatrazine （HA） were monitored in groundwater and top soil at the major corn growing region of Qian＇an and Gongzhuling in Jilin Province, {1.. The residues of the target compounds were analyzed by UPLC-MS/MS. The limits of detection （LODs） ofATR, DEA, DIA, and HA were 0.5, 0.5, 5, and 0.5 ng L-1.in groundwater and 0.33, 0.33, 3.3, and 0.33 μg kg-1.in soil. The target compounds were found in 94% of groundwater samples and 1.0% of soil samples. The compounds detected most frequently in groundwater were ATR （89%）, DEA （64%） and HA （1.%）, whereas in soil were ATR （97%）, DEA （36%） and HA （97%）. DIA was not detected in any determined groundwater and soil sample. Average residues were 1.6.8 ng L-1.for ATR, 0.9 ng L-1.for DEA and 0.3 ng L-1.for HA in groundwater, whereas 1..1.μg kg-1.for ATR, 0.4 μg kg-1.for DEA and 7.8 μg kg-1.for HA in soil. ATR residues detected in groundwater samples were below standards for drinking water quality （GB5749-2006, 2 μg L-1., while the total residues of ATR and its chloro-s-triazine metabolites （DEA and DIA） were below current WHO （World Health Organization） guideline value （GV, 0.1.mg L-1.. In addition, concentrations of HA in groundwater were determined below current WHO GV （0.2 mg L-1.. The results indicated that ATR is safe to be used in Jilin Province under the current application scheme. However, total residues of ATR and DEA were detected in nearly all wells, thus, it is necessary to pay attention on groundwater monitoring for ATR and its metabolites.

关键词： atrazine desethylatrazine deisopropylatrazine hydroxyatrazine groundwater soil UPLC-MS/MS

Reservoir differences and formation mechanisms in the Ke-Bai overthrust belt,northwestern margin of the Junggar Basin,china

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Petroleum Science 2010年第1期7卷 40-48页

作者： zhu Xiaomin zhu Shifa Xian Benzhong Chen Shuping Kuang Lichun xue Xinke xue Jingjing You Xincai State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum Beijing 102249 China Faculty of Geoscience China University of Petroleum Beijing 102249 China Research Institute of Petroleum Exploration and Development Xinjiang Oilfield Company CNPC Karamay Xinjiang 834000 China

There are some differences in reservoir quality of clastic rock between the hanging wall and the foot wall of the Ke-Bai overthrust belt, northwestern margin of the Junggar Basin, western china, which affect the efficient petroleum exploration in this highly mature exploration area. Based on a large number of thin-sections, cast thin-sections, and physical property analysis of cores, we systematically discuss the Permian-Jurassic reservoir differences between the hanging wall and the foot wall of the Ke- Bai overthrust fault from the aspects of structural evolution, time-space distribution of the depositional system, diagenesis characteristics, and reservoir quality and analyzed the reasons for the differences in reservoir properties. The overthrusting of the Ke-Bai fault directly results in different burial histories, diagenesis evolution, and porosity evolution between the hanging wall and the foot wall. The diflbrences of reservoir characteristics are mainly embodied in buried depth, grain size, sedimentary facies, diagenetic stage, and reservoir quality. The analysis results showed that burial history and depositional characteristics controlled by overthrusting are direct influencing factors of reservoir differences. Because of shallow burial depth of the hanging wall, the reservoir compaction is weak and primary pores are preserved well. The porosity of reservoir on the hanging wall is generally 1.%-25%. The strata on the foot wall are deeply buried, and there are mainly mixed pores with the average porosity of 5%-20%. The favorable reservoir on the foot wall is generally developed near faults or in the channel sand bodies, which are usually dissolution development areas.

关键词： Junggar Basin overthrust belt reservoir differences formation mechanism

具有乳腺导管再生能力的小鼠乳腺原基细胞群黏附因子的表达特点

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生物化学与生物物理进展 2010年第5期37卷 490-495页

作者：宋嘉哲薛恺李松李宁中国农业大学生物学院农业生物技术国家重点实验室北京100193 北京济普霖生物技术有限公司北京100193

乳腺干细胞是研究器官形成、细胞增殖、分化、生存和凋亡等信号通路的理想模型,而近来的研究发现许多成体干细胞的特异性表面标记都与细胞黏附分子(celladhesion molecule,CAM)家族相关.因此,研究胚胎期乳腺干/祖细胞群的黏附分子基因... 详细信息

乳腺干细胞是研究器官形成、细胞增殖、分化、生存和凋亡等信号通路的理想模型,而近来的研究发现许多成体干细胞的特异性表面标记都与细胞黏附分子(celladhesion molecule,CAM)家族相关.因此,研究胚胎期乳腺干/祖细胞群的黏附分子基因表达特点,对于纯化和鉴定胚胎期乳腺干/祖细胞具有重要指导意义.用成年小鼠乳腺上皮干细胞的标记CD24和CD49f来分选小鼠胚胎期1.天乳腺原基细胞群,发现CD24+和CD49f+双阳性的乳腺原基细胞包含两个细胞群:CD24hiCD49f+细胞群和CD24medCD49f+细胞群.它们占乳腺原基总细胞的比例分别为1.%和47%.在随后的细胞培养实验和体内移植再生实验中发现,CD24medCD49f+细胞群可以贴壁,而且具有再生乳腺导管的能力,相反,CD24hiCD49f+细胞群既不能贴壁也不具有移植再生能力.这些结果表明,这两个细胞群分别代表不同的细胞类型,而CD24medCD49f+细胞群有可能包含具有自我更新能力的乳腺原基干/祖细胞.挑选了可能与乳腺相关的1.个黏附分子,并对这两群细胞进行了定量PCR检测.结果表明,具有乳腺导管重建能力的CD24medCD49f+细胞群的黏附分子基因表达明显区别于CD24hiCD49f+细胞群,而且其中几个与成体干细胞相关的标记基因在CD24medCD49f+细胞群中的表达显著高于CD24hiCD49f+细胞群.

关键词：乳腺原基乳腺干细胞细胞黏附分子再生

Primary study of muscone's effect on cardiovascular system

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沈阳药科大学学报 2008年第S1期25卷 93-94页

作者： zhu {1.-jing1.2,WU Qi-biao1.LI Hai-tao1.2(1.college of Traditional Chinese Medicine,Macao university of Science and technology,Macao 00853,china 2.college of Pharmacy,Nanjing university of Chinese Medicine,Nanjing 21.046,china)

Objective To investigate the effect of muscone on cardiovascular *** Experimental animals to divide muscone high、middle、low dose group(the mouse is 20 mg·kg-1.1. mg·kg-1.5.0 mg·kg-1.the rat is 1. mg·kg-1.5.0 mg·kg-1.2.5 mg·kg-1.,GT group(the mouse is 1.1. mg·kg-1.the rat is 1.24 mg·kg-1.and NS *** administration in a week,do the mouse ant-hypoxia experiment、the drug(Pit.)produce the rat myocardial ischemia experiment and obstruct coronary artery to produce the rat myocardial ischemia *** mice's survival time(t),the rat's variation of T in electrocardiogram、creatinkinase(CK)and lactate dehydrogenase(LDH)were recorded,*** The effect of Muscone is significant difference between GT and NS in a dose variation *** Muscone has the effect of ant-hypoxia,cutting down T peak value,reducing CK and *** muscone has effect to inhibiting myocardial ischemia.

关键词： muscone cardiovascular system

EFFECT OF MOLECULAR WEIGHT OF PEO ON THE STRUCTURE AND PROPERTIES OF PDMAEMA/PEO HYDROGELS

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Chinese Journal of Polymer Science 2006年第1期24卷 35-40页

作者： zhu-gen Liu Min Yi Mao-lin Zhai and Hong-fei Ha Department of {1. Chemistry and The Key Laboratory of Polymer Chemistry and Physics of Ministry of Education,college of Chemistry & Molecular Engineering,Peking university,beijing 1.0871.china Department of applied Chemistry and The Key Laboratory of Polymer Chemistry and Physics of Ministry of Education College of Chemistry & Molecular Engineering Peking University Beijing 100871

A new kind of binary hydrogels composed of poly（dimethylaminoethylmethacrylate）（PDMAEMA） and poly（ethylene oxide）（PEO） with varying weight average molecular weights （M^-w = 5 × 1.^4, 1.× 1.^5 and 2.5 × 1.^6） were prepared by У-irradiation technology. The properties of PDMAEMA/PEO hydrogels obtained were evaluated in terms of gel fraction, gel strength, thermal characterization and swelling behavior. The gel strength and swelling degree of the hydrogels could be improved obviously after adding PEO into the PDMAEMA system, while the degree of improvement decreased with increasing M^-w of PEO. The temperature sensitivity of PDMAEMA/PEO was retained only in the sample with PEO of M^-w = 5 × 1.^4, and the pH sensitivity was retained in samples with PEO of M^-w = 5 × 1.^4 and 1.× 1.^5. When DMAEMA/PEO mixtures containing PEO of M^-w = 5 × 1.^4 were irradiated, the main reaction could be the cross-linking of DMAEMA, and the linear PEO molecular chains could penetrate into the cross-linked network of PDMAEMA. With increasing M^-w of PEO, some side reactions were induced, such as grafting of DMAEMA onto PEO molecules, the scission or cross-linking of PEO.

关键词： Poly(dimethylaminoethylmethacrylate) Poly(ethylene oxide) Molecular weight Binary hydrogels Irradiation.