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Journal of Materials Science & Technology 2022年第18期113卷 253-260页

作者： Chen Chen Yanzhou Fan Wei Wang Hang Zhang Jialiang Hou Ran Wei Tao Zhang tan Wang Mo Li Shaokang Guan Fushan Li School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001China School of Materials Science and Engineering Xi’an Jiaotong UniversityXi’an 710049China Key Laboratory of Aerospace Materials and Performance(Ministry of Education) School of Materials Science and EngineeringBeihang UniversityBeijing 100191China School of Materials Science and Engineering Georgia Institute of TechnologyAtlantaGA 30332USA

High entropy alloys(HEAs)with superb mechanical properties have been traditionally produced by solid-ification and subsequent heat treatment,In this paper,we demonstrate a new route via one-step process using sub-rapid *** proper cooling rates,the CrFeCoNiAl^(0.6) HEA could form ultrafineFCC+BCC dual-phase *** varying cooling rate,we can control the fraction of the BCC phaseand refinement of FCC microstructures that have tunable mechanical properties in yield strength and hardness ranging from~580 to~1460 MPa and~260 to~550 *** show that the structure-property-processing relation originates from the sideplate microstructures formed during fast cooling that havespecific crystallographic orientation relationship between the FCC and BCC phases and chemical segrega *** work provides a new setting for better understanding of the solid-state phase transformation in HEAs under sub-rapid solidification conditions as well as a novel method for development of high-performance HEAs.

关键词： High entropy allay Cooling rate Orientation Mechanical properties Phase transition

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Spending Spree

Beijing Review 2008年第23期51卷 36-37页

作者： tan WEI

Chinese enterprises are casting their eyes globally in search of new investment china’s economic expansion is sizzling with its outward investment continuing to reach new *** Jian,Vice Minister of Commerce revealed a... 详细信息

关键词： Spending Spree

Study on Effectiveness of Government Governance in the Cities with Serious Air Pollution: A Case Study of Zhengzhou City

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Meteorological and Environmental Research 2019年第6期10卷 16-19,26页

作者： tan Lu Economics and Management School Yangtze University

It is a basic national policy of China and the most important problem in the current development process to control pollution and protect *** environmental and ecological management has strong externality,there is little room for the private sector to play,and government governance becomes the most important *** rationally assess government effectiveness in ecological management and clarify the main factors affecting the effective governance,Zhengzhou City is taken as research *** referring to advanced experience of policy evaluation at home and abroad,two level-one indexes(ecological effect and economic effect)and eight level-two indexes(days of good air,concentrations of main air pollutants,energy consumption of per unit GDP,total energy consumption,per capita GDP,energy consumption of heavy industry,added value of industries above designated size,and annual fixed asset investment)are constructed to evaluate effectiveness of air pollution control policy in Zhengzhou ***,the factors affecting effectiveness of air pollution control policy in Zhengzhou City are ***,corresponding suggestions are proposed based on these factors:perfecting laws and regulations of air pollution control in Zhengzhou City,establishing accountability mechanism and cross regional governance system,adjusting industry and energy structure,valuing environmental technology and social participation,and improving government and people's awareness of environmental protection.

关键词： Air pollution Governance policy Effectiveness Policy evaluation

Calculation Method of Single Well Controlled Reserves Using Data of Production Trends

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China Oil & Gas 2010年第4期17卷 36-40页

作者： tan Xianhong CNOOC Research Institute

Single well controlled reserves of offshore oilfields are very *** one or two wells are adopted for the development control of the reserves of a certain *** is of great significance for directing the oilfield adjustment work to know the actual conditions of the single well controlled ***,the single well controlled reserves of a well are determined by such methods as volumetric method,well test method and numerical simulation ***,

关键词：控制储量单井生产趋势计算数值模拟方法油田储量油田调整容量法

The Market and China's 800 Million Peasants

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China Today 1994年第2期43卷 43-46页

作者： JIANG tan

ＴｈｅＭａｒｋｅｔａｎｄＣｈｉｎａ＇ｓ８００ＭｉｌｌｉｏｎＰｅａｓａｎｔｓＢｙｓｔａｆｆｒｅｐｏｒｔｅｒＪＩＡＮＧＴＡＮＴｈｒｏｕｇｈａｃｏｍｂｉｎａｔｉｏｎｏｆｓｅｌｆ－ｈｅｌｐａｎｄｈｅｌｐｆｒｏｍｔｈｅｇｏｖｅ...

ＴｈｅＭａｒｋｅｔａｎｄＣｈｉｎａ＇ｓ８００ＭｉｌｌｉｏｎＰｅａｓａｎｔｓＢｙｓｔａｆｆｒｅｐｏｒｔｅｒＪＩＡＮＧＴＡＮＴｈｒｏｕｇｈａｃｏｍｂｉｎａｔｉｏｎｏｆｓｅｌｆ－ｈｅｌｐａｎｄｈｅｌｐｆｒｏｍｔｈｅｇｏｖｅｒｎｍｅｎｔ，Ｃｈｉｎａ＇ｓｃｏｕ...

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Linking coral fluorescence phenotypes to thermal bleaching in the reef-building Galaxea fascicularis from the northern South China Sea

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Marine Life Science & Technology 2024年第1期6卷 155-167页

作者： Sanqiang Gong Jiayuan Liang Gang Li Lijia Xu Yehui tan Xinqing Zheng Xuejie Jin Kefu Yu Xiaomin Xia Key Laboratory of Tropical Marine Bio-Resources and Ecology&Guangdong Provincial Key Laboratory of Applied Marine Biology South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou) Guangzhou 510301China Coral Reef Research Center of China Guangxi UniversityNanning 53004China South China Institute of Environmental Sciences The Ministry of Ecology and Environment of PRCGuangzhou 510530China Third Institute of Oceanography Ministry of Natural ResourcesXiamen 361005China

Coral fluorescence phenotypes have been suggested as an adaptation to a broad range of environmental conditions,yet the mechanisms linking thermal bleaching tolerance in reef-building coral populations,associated with fluorescence phenotypes due to GFP-like proteins,remains *** this study,the relationship between the thermal sensitivity and phenotypic plasticity of corals was investigated using two phenotypes of Galaxea fascicularis,green and *** results reveal that brown *** was more susceptible to bleaching than green *** when exposed to a higher growth temperature of 32℃.Both phenotypes of *** were associated with the thermotolerant Symbiodiniaceae symbiont,Durusdinium ***,the brown *** showed a significant decrease in Symbiodiniaceae cell density and a significant increase in pathogenic bacteria abundance when the growth temperature was raised from 29 to 32℃.The physiological traits and transcriptomic profiles of Symbiodiniaceae were not notably affected,but there were differences in the transcriptional levels of certain genes between the two phenotype hosts of *** heat stress of 32℃,the gene encoding green fluorescent protein(GFP)-like and chromosome-associated proteins,as well as genes related to oxidative phosphorylation,cell growth and death showed lower transcriptional levels in the brown *** compared to the green ***,the results demonstrate that the green form of *** is better able to tolerate ocean warming and defend against pathogenic bacteria,likely due to higher gene transcription levels and defense ability.

关键词： Fluorescence phenotype Thermal bleaching Microbiome Galaxea fascicularis Ocean warming

Hydrogen Sulfide Alleviates Aluminum Toxicity in Germinating Wheat Seedlings

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Journal of Integrative Plant Biology 2010年第6期52卷 556-567页

作者： Hua Zhang Zhu-Qin tan Lan-Ying Hu Song-Hua Wang Jian-Ping Luo Russell L. Jones School of Biotechnology and Food Engineering Hefei University of Technology Hefei 230009 China Department of Plant and Microbial Biology University of California Berkeley CA 94720 USA Life Science College Anhui Science and Technology University Bengbu 233100 China

Protective role of hydrogen sulfide （H2S） on seed germination and seedling growth was studied in wheat （Triticum） seeds subjected to aluminum （Al3＋） stress. We show that germination and seedling growth of wheat is inhibited by high concentrations of AICI3. At 30 mmol/L AICI3 germination is reduced by about 50% and seedling growth is more dramatically inhibited by this treatment. Pre-incubation of wheat seeds in the H2S donor NaHS alleviates AICI3-induced stress in a dose-dependant manner at an optimal concentration of 0.3 mmol/L. We verified that the role of NaHS in alleviating Al3＋ stress could be attributed to H2S/HS- by showing that the level of endogenous H2S increased following NaHS treatment. Furthermore, other sodium salts containing sulfur were ineffective in alleviating Al3＋ stress. NaHS pretreatment significantly increased the activities of amylases and esterases and sustained much lower levels of MDA and H2O2 in germinating seeds under Al3＋ stress. Moreover, NaHS pretreatment increased the activities of guaiacol peroxidase, ascorbate peroxidase, superoxide dismutase and catalase and decreased that of lipoxygenase. NaHS pretreatment also decreased the uptake of Al3＋ in AICI3-treated seed. Taken together these results suggest that H2S could increase antioxidant capability in wheat seeds leading to the alleviation of Al3＋ stress.

关键词： EFFECT of aluminum on plants HYDROGEN sulfide WHEAT PLANT nutrients SEEDS -- Growth ESTERASES SODIUM salts PEROXIDASE

Neuroprotection by cattle encephalon glycoside and ignotin beyond the time window of thrombolysis in ischemic stroke

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Neural Regeneration Research 2021年第2期16卷 312-318页

作者： Jun Zhong Rong-Wei Li Ju Wang Ying Wang Hong-Fei Ge Ji-Shu Xian Hua Feng Liang tan Department of Neurosurgery Southwest HospitalThe Third Military Medical University(Army Medical University)ChongqingChina Department of Neurosurgery Hanzhong Central HospitalHanzhongShaanxi ProvinceChina Department of Oncology Hanzhong Central HospitalHanzhongShaanxi ProvinceChina State Key Laboratory of Power Transmission Equipment and System Security and New Technology School of Electrical EngineeringChongqing UniversityChongqingChina

Cattle encephalon glycoside and ignotin(CEGI)injection is known as a multi-target neuroprotective drug that contains numerous liposoluble molecules,such as polypeptides,monosialotetrahexosyl ganglioside(GM-1),free amino acids,hypoxanthine and *** has been approved by the Chinese State Food and Drug Administration and widely used in the treatments of various diseases,such as stroke and Alzheimer's ***,the neuroprotective effects of CEGI beyond the time window of thrombolysis(within 4.5 hours)on acute ischemic stroke remain *** study constructed a rat middle cerebral artery occlusion model by suture-occluded method to simulate ischemic *** first daily dose was intraperitoneally injected at 8 hours post-surgery and the CEGI treatments continued for 14 *** of the modified five-point Bederson scale,beam balance test and rotameric test showed the neurological function of ischemic stroke rats treated with 4 m L/kg/d CEGI improved significantly,but the mortality within 14 days did not change *** MRI and 2,3,5-triphenyltetrazolium chloride staining confirmed that the infarct size in the 4 m L/kg/d CEGI-treated rats was significantly reduced compared with ischemic insult *** results of transmission electron microscopy and double immunofluorescence staining showed that the hippocampal neuronal necrosis in the ischemic penumbra decreased whereas the immunopositivity of new neuronal-specific protein doublecortin and the percentage of Ki67/doublecortin positive cells increased in CEGI-treated rats compared with untreated *** results suggest that CEGI has an effective neuroprotective effect on ischemic stroke when administered after the time window of *** study was approved by the Animal Ethics Committee of The Third Military Medical University,China.

关键词： apoptosis brain cattle encephalon glycoside and ignotin central nervous system neurological function plasticity rat regeneration stroke

Analysis and Design of Hybrid Excitation Permanent Magnet Synchronous Generators

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Frontiers of Electrical and Electronic Engineering in China 2006年第1期1卷 63-66页

作者： JIN Wan-bing ZHANG Dong AN Zhong-liang tan Ren-yuan Delta Power Electronics Center Shanghai 201209China Shanghai University Shanghai 200072China Research Institute of Special Electric Machines Shenyang University of TechnologyShenyang 110023China

On the basis of a conventional permanent magnet(PM)synchronous generator’s construction,a novel kind of Hybrid Excitation Permanent Magnet Synchronous Generator(HEPMSG)is introduced by inserting exciting winding in the stator or ***,the construction of HEPMSG is improved with the addition of PM excitation on the ferromagnetic pole,and its working principle and design method are studied in ***,an appropriate exciting current control system is presented considering the characteristics of ***,a prototype is made,and test results confirm the analysis and design.

关键词： hybrid excitation complex magnet circuit PWM adjustive rate of voltage

CHINA AND ASEAN：LONG-TIME FRIENDS

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China Report ASEAN 2018年第8期3卷 18-21页

作者： tan Xingyu