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Elaborating strengthen mechanism of Pt-Ir solid solution superalloy at finite temperature

Rare Metals 2024年第3期43卷 1243-1256页

作者： wei Yu Xiao-Yu chong Yun-{2. Zhou Meng-Di Gan Ying-Xue Liang Yan wei Ai-Min Zhang Chang-Yi Hu Xing-Yu Gao Li Chen Hai-Feng Song Jing Feng Faculty of Materials Science and Engineering Kunming University of Science and TechnologyKunming650093China Yunnan Precious Metals Laboratory Co.LTD Kunming650106China Laboratory of Computational Physics Institute of Applied Physics and Computational MathematicsBeijing100088China

Pt-Ir alloy is potential superalloys used above 13.0℃because of their high strength and creep ***,the ductility of Pt-Ir alloy has rapidly deteriorated with the increase of Ir,resulting in poor *** work quantitatively evaluated the solid solution strengthening(SSS)and grain refinement strengthening(GRS)of Pt-Ir alloy using first-principles calculations combined with experimental ***,the stretching force constants in the second nearest neighbor region(SFC^(2.d))of pure Ir(193.7 eV·nm^(-2.)are 3.40 times that of pure Pt(57.0 eV·nm^(-2.),i.e.,the interatomic interaction is greatly enhanced with the increase of Ir content,which leads to the decrease of ductility,and modulus misfit plays a dominant role in ***,the physical mechanisms responsible for the hardness(H_(V))of Pt-Ir alloy,using the power-law-scaled function of electron work function coupled SSS and GRS,are attributed to the electron redistribution caused by different Ir ***,a thorough assessment of the thermodynamic characteristics of Pt-Ir binary alloy was conducted,culminating in development of a mapping model that effectively relates enmposition,temperature and *** results revealed that the compressive strength incrcases with the Ir content,and the highest strength was observed in Pt_(0.2.)Ir_(0.75).This study provides valuable insights into the Pt-Ir alloy system.

关键词： Elastic properties Phonon Solid solution strengthen Force constants CALPHAD

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The statistical characteristics of the atmospheric water over tropical western Pacific ' warm pool' during TOGA COARE IOP

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Chinese Science Bulletin 1997年第12期42卷 1005-1009页

作者： wei chong and {2. {3. of {3. Physics, Chinese Academy of Sciences, beijing 10002., china Institute of atmospheric Physics Chinese Academy of Sciences Fkijing China

THIS note gives the statistical analyses of continuous measurements with high time resolution(5 min)of atmospheric water(including precipitable water vapor,vertically path-integratedcloud liquid water content and rain intensity)over the tropical western Pacific at a fixed point(2.S,158°E)during TOGA COARE IOP(1992.11—1993.02..Some comparisons are madebetween these statistical results and those of the measurments obtained during previous meteo-

关键词： microwave remote sensing western Pacific ’ warm pool’ cloud liquid water water vapor tropical precipitation.

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Stratigraphic framework and sedimentary evolution during the Cryogenian-Ediacaran transition in northeastern Sichuan Basin,South china

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Petroleum Science 2024年第2期21卷 823-835页

作者： Yi Zhang Hong-wei Kuang Yong-Qing Liu Qiang Shi Dong-Ge Wang Ke-Ning Qi Yu-chong Wang Da-wei Qiao Xiao-Shuai Chen Li-Zhi Wu Meng Tian Long Chen Yi wei Liao-Yuan Song Jian Li Zi-Gang Wu Yun-Qian Liu xuan-Chun Liu An-Qing Chen Zhi-wei Liao Institute of Geology Chinese Academy of Geological SciencesBeijing100037China State Key Laboratory of Coal Mine Disaster Dynamics and Control School of Resources and Safety EngineeringChongqing UniversityChongqing400044China No.2.5 Geological Team Chongqing Bureau of Geology and Minerals ExplorationChongqing401121China chongqing Institute of Geological Survey Chongqing401122China Key Laboratory of Deep-time Geography and Environment Reconstruction and Applications of Ministry of Natural Resources Chengdu University of TechnologyChengdu610059SichuanChina

The northeastern Sichuan area in the northern Yangtze margin has unique Ediacaran geological records,especially the Doushantuo Formation(DST),and become a hot research area in recent ***,the Cryogenian-Ediacaran(C-E)boundary has not been precisely identified,which restricts the in-depth study of geological information during this crucial transitional period and is unfavorable for a systematic and complete understanding of the Yangtze Block and even the global paleogeographic *** study conducted stratigraphy,sedimentology,and chronostratigraphy to establish the stratigraphic framework and sedimentary evolution of the C-E transition strata in northeastern *** results showed that the Ediacaran sediments,without the cap dolomite,unconformably overlaid the Cryogenian sediments in the studied *** Member II of the DST,characterized by 50-160 m of red-green sandstone(approximately equivalent to the original Chengkou“Guanyinya Formation”),directly overlaid the Cryogenian sediments and displayed a 62.±2.3.Ma maximum depositional age from the detrital zircon U-Pb *** stratigraphic correlations indicate that the C-E transition strata in northeastern Sichuan had a consistent lithological association and sedimentary sequence characteristics but differed from the Three ***,the upper Nantuo massive glacial diamictites transition to the icebergs rafted lonestone-bearing mudstones at the top,then change upward to DST barrier coast *** proposed DST of the northeastern Sichuan Basin was divided into three lithostratigraphic members without the regional Member I cap dolomite:(i)Member II purple-red,gray-green sandstone strata,(ii)MemberⅢblack mudstone strata,and(iii)Member IV P-Mn bearing *** the C-E transition,the study area experienced(i)the global deglaciation stage in the terminal Marinoan glaciation and(ii)the filling-leveling up stage with clastic rocks in the early ***,the early Ediacaran

关键词： Marinoan glaciation Doushantuo formation Cap dolomite Deglacial and coastal deposits Detrital zircon U-Pb dating

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Cloud Top Pressure Retrieval Using Polarized and Oxygen A-band Measurements from GF5 and PARASOL Satellites

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Advances in atmospheric Sciences 2024年第4期41卷 680-700页

作者： Lesi wei Huazhe SHANG Jian XU chong SHI Gegen TANA Kefu CHAO Shanhu BAO Liangfu CHEN Husi LETU State Key Laboratory of Remote Sensing Science Aerospace Information Research InstituteChinese Academy of SciencesBeijing 100101China National Space Science Center Chinese Academy of SciencesBeijing 101407China College of Physics and Electronic Information Inner Mongolia Normal UniversityHohhot 010022China College of Geographical Science Inner Mongolia Normal UniversityHohhot 010022China University of Chinese Academy of Sciences Beijing 100101China

Cloud top pressure(CTP)is one of the critical cloud properties that significantly affects the radiative effect of ***-angle polarized sensors can employ polarized bands(490 nm)or O_(2.A-bands(763.and 765 nm)to retrieve the ***,the CTP retrieved by the two methods shows inconsistent results in certain cases,and large uncertainties in low and thin cloud retrievals,which may lead to challenges in subsequent *** study proposes a synergistic algorithm that considers both O_(2.A-bands and polarized bands using a random forest(RF)*** CTP data are used as the true values and the polarized and non-polarized measurements are concatenated to train the RF model to determine ***,through analysis,we proposed that the polarized signal becomes saturated as the cloud optical thickness(COT)increases,necessitating a particular treatment for cases where COT2.5.176 hPa,RMSEDPC=171.141 hPa,R^(2.POLDER=0.63.,R^(2.DPC=0.663.respectively)were higher than that of the MODIS and POLDER Rayleigh pressure *** synergistic algorithm also showed good performance with the application of DPC *** algorithm is expected to provide data support for atmosphere-related fields as an atmospheric remote sensing algorithm within the Cloud Application for Remote Sensing,atmospheric Radiation,and Updating Energy(CARE)platform.

关键词： atmospheric remote sensing cloud top pressure multi-angle polarized O_(2.A-band GF-5/DPC PARASOL/POLDER-3

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An airborne microwave radiometer and measurements of cloud liquid water

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Chinese Science Bulletin 2003年第S2期48卷 82-87页

作者： LEI Hengchi, JIN Dezhen, wei chong & SHEN Zhilai 1. Institute of {2. Physice, Chinese Academy of Sciences,{3.,{3. 2. Jilin Weather Modification Office, Changchun 13.062.{3. Chinese Acad Sci Inst Atmospher Phys Beijing 100029 Peoples R China Jilin Weather Modificat Off Changsha 130062 Peoples R China

A single-channel (9.5 mm) airborne microwaveradiometer with one antenna is developed. The retrievalmethods and primary observation results of cloud liquidwater and super-cooled cloud liquid water are discussed. Theaircraft experiments show that the cloud liquid water andsuper-cooled liquid water can be sensitively monitored atsome level of accuracy by the radiometer. The results ofcloud liquid water content are reasonable and correspondwell with the surface radar echo intensity. The design of theairborne radiometer and its retrieval methods are feasible,giving it application value.

关键词： airhorne microwave radiometer microwave remote-sensing retrieval methods calibration methods cloud liquid water super-cooled liquid.

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Two stages power generation test of the hot dry rock exploration and production demonstration project in the Gonghe Basin,northeastern Qinghai-Tibet plateau,china

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china Geology 2024年第3期7卷 409-421页

作者： Er-yong Zhang Dong-guang Wen Gui-ling Wang Xian-peng Jin Lin-you Zhang Hai-dong Wu Wen-shi Wang Cheng-ming Ye wei Weng Kuan Li Jin-sheng Wu Xian-chun Tang chong-yuan Zhang Qing-da Feng Sheng Lian Li-sha Hu Gui-lin Zhu Xing-long Xie Bin Wu Dan Wang Xue Niu Zhao-{2. Niu Dong-lin Liu Hui Zhang Wen-hao Xu Shu-qing Yao Li Yang Center for Hydrogeology and Environmental Geology Survey China Geological SurveyMinistry of Natural ResourcesTianjin 300304China Institute of Hydrogeology and Environmental Geology Chinese Academy of Geological SciencesChina Geological SurveyShijiazhuang 050061China Institute of Exploration Techniques Chinese Academy of Geological SciencesChina Geological SurveyLangfang 065000China Institute of Exploration Engineering China Geological SurveyMinistry of Natural ResourcesBeijing 100083China Institute of Exploration Technology Chinese Academy of Geological SciencesChengdu 611734China Chinese Academy of Geological Sciences China Geological SurveyBeijing 100037China Institute of Geomechanics Chinese Academy of Geological SciencesChina Geological SurveyBeijing 100081China Geoscience Documentation Center China Geological SurveyMinistry of Natural ResourcesBeijing 100083China

The Hot Dry Rock(HDR)is considered as a clean and renewable energy,poised to significantly contribute to the global energy decarbonization *** HDR projects worldwide have accumulated valuable experience in efficient drilling and completion,reservoir construction,and fracture *** 2.19,china Geological Survey(CGS)initiated a demonstration project of HDR exploration and production in the Gonghe Basin,aiming to overcome the setbacks faced by HDR *** the ensuing four years,the Gonghe HDR project achieved the first power generation in 2.2.,followed by the second power generation test in *** establishing the primary well group in the initial phase,two directional wells and one branch well were *** progress was made in successfully constructing the targeted reservoir,realizing inter-well connectivity,power generation and grid connection,implementing of the real-time micro-seismic monitoring.A closed-loop technical validation of the HDR exploration and production was ***,many technical challenges remain in the process of HDR industrialization,such as reservoir fracture network characterization,efficient drilling and completion,multiple fracturing treatment,continuous injection and production,as well as mitigation of induced seismicity and numerical simulation technology.

关键词： Power generation Hot dry rock(HDR) Enhanced geothermal system(EGS) Genesis mechanism Gonghe Basin Directional drilling Reservoir construction Circulation test Induced seismicity Clean energy exploration engineering

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10B-doped MCP detector developed for neutron resonance imaging at Back-n white neutron source

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Nuclear Science and Techniques 2024年第8期35卷 58-68页

作者： Qiang Li Li‑Jiao Wang Jing‑Yu Tang Xiang‑Biao Qiu Zhen Chen Mao‑Yuan Zhao Chang‑Jun Ning Kai Pan wei Xu Tao Li Su‑Peng Lu Han Yi Rui‑Rui Fan Chang‑Qing Feng Rong Zhang Xiao‑Yang Sun Qi An Hao‑Fan Bai Jiang‑Bo Bai Jie Bao Ping Cao Qi‑Ping Chen Yong‑Hao Chen Zeng‑Qi Cui An‑Chuan Fan Fan‑Zhen Feng Min‑Hao Gu Chang‑Cai Han Zi‑Jie Han Guo‑Zhu He Yong‑Cheng He Yang Hong Yi‑wei Hu Han‑Xiong Huang wei Jiang Zhi‑Jie Jiang Zheng‑Yao Jin Ling Kang Bo Li Gong Li Xiao Li Yang Li Jie Liu Rong Liu Shu‑Bin Liu Yi‑Na Liu Guang‑Yuan Luan Jie Ren Zhi‑Zhou Ren Xi‑Chao Ruan Zhao‑Hui Song Kang Sun Zhi‑Xin Tan Sheng‑Da Tang Jin‑Cheng Wang Peng‑Cheng Wang Zhao‑Hui Wang Zhong‑wei Wen Xiao‑Guang Wu xuan Wu Cong Xia Yong‑Ji Yu Guo‑Hui Zhang Hang‑Chang Zhang Lin‑Hao Zhang Qi‑wei Zhang Xian‑Peng Zhang Yu‑Liang Zhang Yue Zhang Zhi‑Yong Zhang Zhi‑Hao Zhou Ke‑Jun Zhu chong Zou Institute of High Energy Physics Chinese Academy of Sciences(CAS)Beijing 100049China Spallation Neutron Source Science Center Dongguan 523803China State Key Laboratory of Particle Detection and Electronics Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Dongguan Songshan Lake Future School Dongguan 523808China School of Nuclear Science and Technology University of Science and Technology of ChinaHefei 230027China State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China North Night Vision Science and Technology(Nanjing)Research Institute Co.Ltd Nanjing 211106China Department of Modern Physics University of Science and Technology of ChinaHefei 230026China State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking UniversityBeijing 100871China Institute of Modern Physics Fudan UniversityShanghai 200433China Key Laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413China china Academy of Engineering Physics Institute of Nuclear Physics and ChemistryMianyang 621900China USTC archaeometry lab University of Science and Technology of ChinaHefei 230026China Northwest Institute of Nuclear Technology Xi’an 710024China University of Chinese Academy of Sciences Beijing 100049China china Shipbuilding Trading Co. LtdBeijing 100044China

Neutron resonance imaging(NRI)has recently emerged as an appealing technique for neutron *** complexity surpasses that of conventional transmission imaging,as it requires a high demand for both a neutron source and ***,the progression of NRI technology has been sluggish since its inception in the 1980s,particularly considering the limited studies analyzing the neutron energy range above *** white neutron source(Back-n)at the china Spallation Neutron Source(CSNS)provides favorable beam conditions for the development of the NRI technique over a wide neutron energy range from eV to ***-sensitive microchannel plates(MCP)have emerged as a cutting-edge tool in the field of neutron detection owing to their high temporal and spatial resolutions,high detection efficiency,and low *** this study,we report the development of a 10B-doped MCP detector,along with its associated electronics,data processing system,and NRI experiments at the *** heavy elements such as gold,silver,tungsten,and indium can be easily identified in the transmission images by their characteristic resonance peaks in the 1–100 eV energy range;the more difficult medium-weight elements such as iron,copper,and aluminum with resonance peaks in the 1–100 keV energy range can also be *** particular,results in the neutron energy range of dozens of keV(Aluminum)are reported here for the first time.

关键词： Neutron resonance imaging 10B doped MCP detector White neutron source Sample nuclide identification

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ARTP诱变选育高产腺苷菌株及发酵条件优化

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中国调味品 2024年第8期49卷 63-68页

作者：闫更轩刘伟刘春燕田缘于冲姜威田洁萍张淑梅黑龙江省科学院微生物研究所哈尔滨150010 黑龙江省科学院哈尔滨150001

为获得高产腺苷菌株,实现降本增效,该研究基于一株腺苷产生菌枯草芽孢杆菌SB-3.,对其进行ARTP诱变选育,采用单因素实验和响应面方法优化菌株发酵条件。结果表明,最佳处理时间为3. s,菌株诱变致死率为98.75%。比对初始菌株腺苷产量,获得... 详细信息

为获得高产腺苷菌株,实现降本增效,该研究基于一株腺苷产生菌枯草芽孢杆菌SB-3.,对其进行ARTP诱变选育,采用单因素实验和响应面方法优化菌株发酵条件。结果表明,最佳处理时间为3. s,菌株诱变致死率为98.75%。比对初始菌株腺苷产量,获得8株高产腺苷突变株,其中菌株Q40-2.3.腺苷产量最高,为6.2. g/L,是出发菌株的2.58倍。该菌株最适发酵条件为葡萄糖99 g/L、蛋白胨2. g/L、pH 7.04、接种量8.03.、发酵时间72.h,此条件下,腺苷产量为6.92.g/L。该研究结果为高产腺苷菌株的诱变选育和发酵条件的优化提供了技术支撑。

关键词：腺苷枯草芽孢杆菌常压室温等离子体诱变发酵条件优化

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基于卫星遥感的中国人为CO_(2.与大气污染物排放协同关系

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中国环境科学 2024年第6期44卷 3111-3121页

作者：王震山李新妹肖薇蒋宁萱柳艺博南京信息工程大学中国气象局生态系统碳源汇重点开放实验室江苏南京210044 南京信息工程大学气象灾害预报预警与评估协同创新中心江苏南京210044 民航西南空管局气象中心四川成都610202 福建省福州市气象局福建福州350008

基于多源卫星遥感数据和大气输送模型研究我国人为CO_(2.与大气污染物(NO_(2.和CO)排放协同关系以及新冠疫情管控期间污碳排放变化特征.结果表明:高人为CO_(2.排放对应高浓度的NO_(2.和CO排放,以省级行政区为单位的2.18~2.2.年非生长季X... 详细信息

基于多源卫星遥感数据和大气输送模型研究我国人为CO_(2.与大气污染物(NO_(2.和CO)排放协同关系以及新冠疫情管控期间污碳排放变化特征.结果表明:高人为CO_(2.排放对应高浓度的NO_(2.和CO排放,以省级行政区为单位的2.18~2.2.年非生长季XCO_(2.异常与XNO_(2.的相关性(r=0.79)高于与XCO的相关性(r=0.61),且高人为CO_(2.排放地区燃烧排放效率更高;2.2.年2.(疫情管控期)我国XCO_(2.异常、XNO_(2.、XCO下降的区域范围为2.19年2.(疫情同比期)面积的50%、70%和49%,2.2.年2.XCO_(2.异常与XNO_(2.的相关性(r=0.71,P2.19年2.(r=0.59,P2.异常与XCO的相关性(r=0.44,P2.19年2.(r=0.68,P2.2.年2.京津冀受西南方向人为排放地区输送的影响高于2.19年2.,而长三角受北部长距离输送的影响降低,珠三角受大气输送的影响最小.研究结果表明卫星遥感可有效用于区域污碳协同排放时空变化特征监测.

关键词：人为CO_(2.排放大气污染协同关系新冠疫情卫星遥感

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In-beam gamma rays of CSNS Back-n characterized by black resonance filter

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NUCLEAR SCIENCE AND TECHNIQUES 2024年第10期35卷 1-12页

作者： Wang, Jin-Cheng Ren, Jie Jiang, wei Ruan, Xi-Chao Liu, Ying-Yi Yang, Hao-Lan Xu, Kuo-Zhi Pan, Xin-Yi Sun, Qi Bao, Jie Huang, Han-Xiong Bai, Hao-Fan Bai, Jiang-Bo Cao, Ping Chen, Qi-Ping Chen, Yong-Hao Duan, Wen-Hao Fan, An-Chuan Fan, Rui-Rui Feng, Chang-Qing Gu, Min-Hao Han, Chang-Cai Han, Zi-Jie He, Guo-Zhu He, Yong-Cheng Hong, Yang Hu, Yi-wei Jiang, Zhi-Jie Kang, Ling Lan, Chang-Lin Li, Bo Li, Feng Li, Qiang Li, Xiao Li, Yang Liu, Jie Liu, Rong Liu, Shu-Bin Liu, Yi-Na Luan, Guang-Yuan Ning, Chang-Jun Qiu, Yi-Jia Ren, Wen-Kai Ren, Zhi-Zhou Song, Zhao-Hui Sun, Kang Tan, Zhi-Xin Tang, Jing-Yu Tang, Sheng-Da Wang, Li-Jiao Wang, Peng-Cheng Wang, Zhao-Hui Wen, Zhong-wei Wu, Xiao-Guang Wu, {3. Wu, Ze-Peng Xia, Cong Xie, Li-Kun Yi, Han Yu, Tao Yu, Yong-Ji Zhang, Guo-Hui Zhang, Hang-Chang Zhang, Qi-wei Zhang, Xian-Peng Zhang, Yu-Liang Zhang, Zhi-Yong Zhao, Mao-Yuan Zhou, Zhi-Hao Zhu, Ke-Jun Zou, chong china Inst Atom Energy Key Lab Nucl Data Beijing 102413 Peoples R China Chinese Acad Sci Inst High Energy Phys Beijing 100049 Peoples R China Spallat Neutron Source Sci Ctr Dongguan 523803 Peoples R China Chinese Acad Sci Inst High Energy Phys State Key Lab Particle Detect & Elect Beijing 100049 Peoples R China Univ Chinese Acad Sci Beijing 100049 Peoples R China Peking Univ Sch Phys State Key Lab Nucl Phys & Technol Beijing 100871 Peoples R China Fudan Univ Inst Modern Phys Shanghai 200433 Peoples R China Univ Sci & Technol china State Key Lab Particle Detect & Elect Hefei 230026 Peoples R China Univ Sci & Technol china Sch Nucl Sci & Technol Hefei 230026 Peoples R China Univ Sci & Technol china Dept Modern Phys Hefei 230026 Peoples R China china Acad Engn Phys Inst Nucl Phys & Chem Mianyang 621900 Peoples R China Univ Sci & Technol china USTC Archaeometry Lab Hefei 230026 Peoples R China Northwest Inst Nucl Technol Xian 710024 Peoples R China Lanzhou Univ Sch Nucl Sci & Technol Lanzhou 730000 Peoples R China Univ Sci & Technol china Inst Adv Technol Hefei 230027 Peoples R China

The back-streaming white-neutron beamline (Back-n) of the china Spallation Neutron Source is an essential neutron- research platform built for the study of nuclear data, neutron physics, and neutron applications. Many types of cross-sectional neutron-reaction measurements have been performed at Back-n since early 2.18. These measurements have shown that a significant number of gamma rays can be transmitted to the experimental stations of Back-n along with the neutron beam. These gamma rays, commonly referred to as in-beam gamma rays, can induce a non-negligible experimental background in neutron-reaction measurements. Studying the characteristics of in-beam gamma rays is important for understanding the experimental background. However, measuring in-beam gamma rays is challenging because most gamma-ray detectors are sensitive to neutrons; thus, discriminating between neutron-induced signals and those from in-beam gamma rays is difficult. In this study, we propose the use of the black resonance filter method and a CeBr3.scintillation detector to measure the characteristics of the in-beam gamma rays of Back-n. Four types of black resonance filters, Ta-181, Co-59, Ag-nat, and Cd-nat, were used in this measurement. The time-of-flight (TOF) technique was used to select the detector signals remaining in the absorption region of the TOF spectra, which were mainly induced by in-beam gamma rays. The energy distribution and flux of the in-beam gamma rays of Back-n were determined by analyzing the deposited energy spectra of the CeBr3.scintillation detector and using Monte Carlo simulations. Based on the results of this study, the background contributions from in-beam gamma rays in neutron-reaction measurements at Back-n can be reasonably evaluated, which is beneficial for enhancing both the experimental methodology and data analysis.

关键词： In-beam gamma rays Back-n Black filter resonance technique In-beam gamma rays Back-n CeBr3.scintillator Black filter resonance technique C6D6 DETECTOR SYSTEM LINE

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