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Growth mechanism of CdS film prepared by chemical bath deposition

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Rare Metals 2014年第3期33卷 324-329页

作者： Xing-Yu Peng Hong-Wei Gu teng Zhang Fa-Zhu Ding Fei Qu Hong-Yan Wang Key Laboratory of Applied Superconductivity Institute of Electrical Engineering Chinese Academy of Sciences University of Chinese Academy of Sciences

In this paper, sodium citrate was adopted as a complexing agent and ammonia merely served as pH adjustor to investigate the growth mechanism of CdS film The growth rate, structural properties, surface morphology microstructure, and optical properties of CdS films were studied by profilometer, X-ray diffractometer（XRD）scanning electron microscopy（SEM）, transmission elec tron microscopy（TEM）, and spectrophotometer, respec tively. The SEM images show that CdS films prepared with higher ammonia concentration have lower nucleation density on substrate. SEM and EDS results show that the formation of Cd（OH）2is not required in the growth of CdS film. As the ammonia concentration increases, the sites tha previously adsorbed S2-are taken by OH-which leads to lower S2-density on substrate. CdS film forms through direct reaction of Cd2？with the S2-which are adsorbed on the substrate. Lower S2-density on the substrate results in the decrease of particle density on the substrate. The as deposited CdS films have relatively high-average trans mittance（＊80 %） in the wavelength range from 500 to1,000 nm which makes them suitable to be used in sola cell.

关键词： CdS Chemical bath deposition Ammoniaconcentration Growth mechanism

High-resolution swath bathymetry using MIMO sonar system

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Journal of Systems Engineering and Electronics 2014年第5期25卷 761-768页

作者： Xionghou Liu chao Sun Jie Zhuo Feng Yi Zongwei Liu Institute of Acoustic Engineering Northwestern Polytechnical University

For increasing the cross-track resolution, the multiple input multiple output （MIMO） technique is introduced into the swath bathymetry system and a new swath bathymetry approach using MIMO sonar is proposed. The MIMO sonar is composed of two parallel transmitting uniform linear arrays （ULAs） and a receiving ULA which is perpendicular to the former. The spacing between the two transmitting ULAs is equal to the product of the receiving sensor number and the receiving inter-sensor spacing. Furthermore, two narrowband linear frequency modulation （LFM） pulses, sharing the same frequency band but with opposite modulation slopes, are used as transmitting waveforms of the two transmitting ULAs. With such an array layout and transmitting signals, the MIMO sonar can sound a swath with the cross-track resolution doubling that of the traditional multibeam sonar using a Mills cross array. Numerical examples are provided to verify the effectiveness of the proposed approach.

关键词： bathymetry multibeam sonar multiple input multipleoutput (MIMO) sonar waveform diversity.

Eogenetic Karst in Interbedded Carbonates and Evaporites and Its Impact on Hydrocarbon Reservoir: A New Case from Middle Triassic Leikoupo Formation in Sichuan Basin, Southwest China

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Journal of Earth Science 2019年第5期30卷 908-923页

作者： Hong Liu Xiucheng Tan Ling Li Xiong Ding Jian Cao Guang Yang teng Ma State Key Laboratory of Oil and Gas Geology and Exploitation Southwest Petroleum University Chengdu 610500 China School of Earth Sciences and Technology Branch of Sedimentology and Hydrocarbon Accumulation CNPC Key Laboratory of Carbonate Reservoir Southwest Petroleum University Chengdu 610500 China Department of Earth Sciences Nanjing University Nanjing 210023 China Institute of Petroleum Exploration and Exploitation PetroChina Southwest Oil and Gas Field Company Chengdu 610051 China

Karst in interbedded carbonates and evaporites has been reported to have important and complex impacts on reservoir. It is significant for exploration and karst geology. Here, we report such a new case from Middle Triassic Leikoupo Formation of Sichuan Basin, Southwest China. Stratigraphic incompleteness and the occurrence of unconformity provide evidence for the presence of eogenetic karst. Under the impact of this eogenetic karst, residual weathered and solution-collapse breccia, solution pores and silicification and dedolomitization have been observed. Classic stratigraphic zonation of karst is not readily distinguishable, which is ascribed to the stratigraphic collapse of carbonate rocks resulting from the dissolution of evaporites by lateral subsurface fluid flow. In terms of impact on reservoir quality, karst can generally improve the initial physical property of the porous layers in theory. However, subsurface fluid flow dissolved the evarporitic beds and facilitated the collapse of overlying strata. As a consequence, the lateral continuity of the reservoirs would be destroyed, and relatively high-quality reservoirs can only be developed with little collapse of overlying strata, reflecting reservoir heterogeneities. This may be a general feature of reservoir formation under the impact of karst in interbedded carbonates and evaporites.

关键词： karst carbonate reservoir evaporite Middle Triassic Leikoupo Formation Sichuan Basin

Dissemination of Traditional Chinese Medicine in Germany from an Intercultural Perspective: A Brief Introduction of Franz Hübotter

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Chinese Medicine and Culture 2021年第3期4卷 188-193页

作者： Fang‑chao Liu Institut für Archäologische Wissenschaften Denkmalwissenschaften and KunstgeschichteOtto‑Friedrich‑Universität BambergBamberg 96047Germany

Traditional Chinese medicine(TCM)is the cultural heritage of all *** not only embodies the cultural crystallization of the region and the nation,but also performs the important mission of curing the lives,saving the sick and maintaining the health of the *** the history of the spread of Chinese medicine to the West,foreign missionaries have played an important role,and researches about this role have continued in *** the history of Chinese medicine in Germany,there is a pivotal figure named Franz Hübotter(1881-1967),who broke through the deadlock in the academic research of Chinese medicine in the 19th century in Germany,but the discussion on his contribution has been comparatively rare in *** works and translations are not only of medical value,but are also valuable historically,culturally,and *** historical development of TCM has the authenticity of history,the integrity of the environment,and the richness of the *** experts have explored and verified the value of *** and scholars are mainly concerned with the dissemination of knowledge from an intercultural *** paper provides a primitive and objective introduction to Franz Hübotter,hoping to trigger off the secondary research among scholars of different professional backgrounds and to expand professional thinking,and then get over the barriers of disciplines.

关键词： Contributions to the Knowledge of Chinese and Tibetan Mongolian Pharmacology Franz Hübotter traditional Chinese medicine

乡村振兴背景下落后乡村逆转发展机制研究——以M乡逆转发展情况调研为例

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西南民族大学学报（人文社会科学版） 2023年第11期44卷 180-185页

作者：滕超张子玥西南大学西塔学院重庆400715 西南大学教育学部北京师范大学马克思主义学院北京100875

促进落后乡村逆转发展振兴是实现共同富裕的重要一环,而政府、市场和乡村社会多方主体价值共创是实现这一逆转的关键机制。政府部门通过提高公共政策决策水平、优化政策供给和调适、不断提升服务质量来推动乡村治理。市场优化基础调节... 详细信息

促进落后乡村逆转发展振兴是实现共同富裕的重要一环,而政府、市场和乡村社会多方主体价值共创是实现这一逆转的关键机制。政府部门通过提高公共政策决策水平、优化政策供给和调适、不断提升服务质量来推动乡村治理。市场优化基础调节作用为涉农项目提供助力。此外,多样化的社会动员机制弥补了市场和小农户衔接不顺畅的环节。然而,虽然部分乡村实现了逆转发展,但是面向未来依然存在很多潜在风险,包括公共产品供给不充足、农业合作社机制不完善、特色产业带动效应不足、乡村青壮年劳动力流失等。针对这些风险问题,推进落后乡村逆转发展需要从机制构建上着力,包括完善公共政策供给调适机制、完善农业合作社经营机制、完善生态资源评估利用机制、完善青壮年人才就业机制、完善特色产业示范带动机制,从而全面推进新农村建设。

关键词：共同富裕乡村振兴基层治理公共政策

科技进步与人权发展——“2022·中欧人权研讨会”综述

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人权 2022年第4期 167-177页

作者：滕锐温婷华中科技大学人权法律研究院华中科技大学法学院

由中国人权研究会、奥地利奥中友好协会主办,国家人权教育与培训基地华中科技大学人权法律研究院、奥中法律协会承办的“2022·中欧人权研讨会”于2022年5月10日在武汉和维也纳成功召开。国内外学者就积极推进科技创新与人权事业保障平... 详细信息

由中国人权研究会、奥地利奥中友好协会主办,国家人权教育与培训基地华中科技大学人权法律研究院、奥中法律协会承办的“2022·中欧人权研讨会”于2022年5月10日在武汉和维也纳成功召开。国内外学者就积极推进科技创新与人权事业保障平衡发展的观念指导与实践经验进行了广泛的交流,探讨了科技时代人权保护实践中的问题与对策。本次会议在不同观点的碰撞和多方对话的交流中,就尊重和保障科技时代的人权已成为人权事业发展的新趋势和新特点达成共识,并进一步倡导各国积极开展科技领域国际合作,让科技为促进世界人权事业发展、推动构建人类命运共同体作出更大贡献。

关键词：科技人权全球人权治理

Integrated Structures and Materials Design of Mechanical Components

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Chinese Journal of Mechanical Engineering 2021年第6期34卷 1-2页

作者： Geng Chen Lele Zhang Christoph Broechmann chao Chang School of Mechanical Electronic and Control EngineeringBeijing Jiaotong UniversityBeijing100044China National International Science and Technology Cooperation Base on Railway Vehicle Operation of Beijing Jiaotong University Beijing100044China Chair and Institute for Materials Applications in Mechanical Engineering RWTH Aachen University52062AachenGermany School of Applied Science Taiyuan University of Science and TechnologyTaiyuan030024China

In recent years,high fidelity numerical models simultaneously reflecting the behaviors of mechanical systems and their underlying materials have gradually become an indispensable part of modern mechanical and production *** different contexts,the attempt to bridge me chanical engineering with materials science and to replace phenomenological models by the physical ones are named either as integrated computational materials engineering(ICME)or integrated structures and materi als design(ISMD).

关键词： replace Structures indispensable

HⅠGalaxy Detections in the Zone of Avoidance with FAST

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Research in Astronomy and Astrophysics 2023年第8期23卷 364-371页

作者： chao Feng Bin Liu Hong-Wei Xi Bo Peng CAS Key Laboratory of FAST National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China School of Astronomy and Space Science University of Chinese Academy of SciencesBeijing 100049China

The Zone of Avoidance(ZoA)is a region of low galactic latitude that is heavily obscured by the Milky *** with radio telescopes are basically unaffected by dust extinction and can unveil the structure behind it through the Milky *** of the scientific goals of the Five-hundred-meter Aperture Spherical radio Telescope(FAST)is to search for the neutral hydrogen and understand the large-scale physics to explore the origin and evolution of the *** take the 15,500 IRAS(the Infrared Astronomical Satellite)galaxies from PSCz(“Point Source Catalog”)survey to reconstruct the density field of the local universe,obtain the distribution of the relative density of galaxies in the ZoA region with a redshift z below 0.07,and the number of detectable galaxies with FAST is estimated by using the neutral hydrogen mass function of the ALFA(Arecibo L-band Feed Array)*** conclude that FAST can observe more than 2000 ZoA galaxies within a distance of 300 Mpc h_(70)^(-1),and present preliminary results of the partial GPPS(the FAST Galactic Plane Pulsar Snapshot survey)data,compared with ALFA ZoA(The Arecibo L-band Feed Array Zone of Avoidance),show that FAST has a higher detection sensitivity to search for HI galaxies in the ZoA area.

关键词： galaxies distances and redshifts-(cosmology )large-scale structure of universe-surveys

Urban rail departure capacity analysis based on a cellular automaton model

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Chinese Physics B 2018年第7期27卷 196-202页

作者： wen-Jun Li Lei Nie School of Traffic and Transportation Beijing Jiaotong UniversityBeijing 100044China

As an important traffic mode, urban rail transit is constantly developing toward improvement in service capacity and quality. When an urban rail transit system is evaluated in terms of its service capacity, the train departure capacity is an important index that can objectively reflect the service level of an urban rail transit facility. In light of the existing cellular automaton models, this paper proposes a suitable cellular automaton model to analyze the train departure capacity of urban rail transit under different variable factors and conditions. The established model can demonstrate the train operating processes by implementing the proposed sound rules, including the rules of train departure at the origin and intermediate stations, and the velocity and position updating rules. The properties of train traffic are analyzed via numerical experiments. The numerical results show that the departure capacity is negatively affected by the train departure control manner. In addition, （i） the real-time signal control can offer a higher train service frequency; （ii） the departure capacity gradually rises with the decrease in the line design speed to a limited extent; （iii） the departure capacity decreases with extension in the train length; （iv） the number of departed trains decreases as the train stop time increases; （v） the departure capacity is not affected by the section length. However, the longer the length, the worse the service quality of the urban rail transit line. The experiments show that the proposed cellular automaton model can be used to analyze the train service capacity of an urban rail transit system by performing quantitative analysis under various considered factors, conditions, and management modes.

关键词： train departure capacity urban rail transit cellular automaton model