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泄洪区石砌拱桥病害及改造工程设计施工管养一体化探析

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工程建设与设计 2024年第1期 128-130页

作者：矣健萍双柏县地方公路管理段云南双柏675100

对石砌拱桥的典型泄洪病害及影响进行分析,结合某危桥改造项目,论证桥梁设计前期考虑桥梁的防洪泄洪能力十分重要,同时结合标准化施工和施工管养一体化分析探讨桥梁避免洪水灾害的措施和方法。

关键词：石砌拱桥泄洪病害施工技术养护方法

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基于AHP的无人机激光扫描测绘质量控制研究与应用

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中国标准化 2024年第21期 262-266页

作者：雷伊娉广州市地质调查院

近年来,地质调查领域已广泛应用无人机激光扫描技术快速获取高密度地理空间数据。为提高无人机激光扫描作业质量,解决作业过程中的质量控制重点决策问题,本文运用AHP搭建了无人机激光扫描测绘质量控制指标体系,提出了质量控制指标重要... 详细信息

近年来,地质调查领域已广泛应用无人机激光扫描技术快速获取高密度地理空间数据。为提高无人机激光扫描作业质量,解决作业过程中的质量控制重点决策问题,本文运用AHP搭建了无人机激光扫描测绘质量控制指标体系,提出了质量控制指标重要度评估方法,并将研究成果应用于无人机激光扫描实际案例中,通过判断矩阵得出指标体系中各指标的权重,为质量管理决策提供了参考,取得良好的质量效果,对无人机激光雷达扫描的质量管理具有较好的实践指导意义。

关键词：无人机激光扫描层次分析法质量控制

Frontiers in high entropy alloys and high entropy functional materials

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Rare Metals 2024年第10期43卷 4639-4776页

作者： Wen-Tao Zhang Wen Huang Fu-Jie Yu Qi Zhao Xin-Dong Zhu Tao Feng Yao Jiang Xiao-Ming Li Xue-Fei Miao He Zhu Si Lan Xue-Qian Wang Bao-Long Shen Zhe Jia Feng-Qi Zhang Wei Wang Qi Liu Yang Ren Xun-Li Wang Xiao-Ya Cui Xiao-Yang Wang Ya-Nan Chen Bing-Bing Fan Meng-Ru Li Qi-Long Gao Jia-Ming Guo Zeng-Bao Jiao Zhi-Min Guo Yu-ping Zhao Qian Yu Rui Huang Ling-Kun Zhang yi-ping Lu Xu-Bo Li Huai-Jun Lin Yan Ma Wei-Ming Yang Zhi-Hua Shen Hai-Yan He Yong-Gang Sun Yong-Jiang Huang De-Zhuang Wang Qing-Feng Liu Fei-Yang Wang Hui Liu Hong-Hui Wu Li-Qiang Wang Yang Lu Nan Wang Tian-Li Wang Wei-Bing Liao yi-Han Wang Yuan Wu Yu-Zhen yin Jie Pan yi Zhang Qing Wang Jian-Yang Zhang Tao Yang Yasir Sohail Jin-Yu Zhang Hua Ji Qiang Li Wei-Di Liu Zhi-Gang Chen Xiong-Jun Liu Wen Ma Liang Mao Zhen-Duo Wu School of Materials Science and Engineering Nanjing University of Science and Technology Jiangsu Key Laboratory for Advanced Metallic Materials School of Materials Science and Engineering Southeast University Department of Physics City University of Hong Kong School of Materials Science and Engineering Tianjin University School of Physics and Microelectronics Zhengzhou University Department of Mechanical Engineering Research Institute for Advanced Manufacturing The Hong Kong Polytechnic University Center of Electron Microscopy and State Key Laboratory of Silicon Materials School of Materials Science and Engineering Zhejiang University Key Laboratory of Solidification Control and Digital Preparation Technology (Liaoning Province) School of Materials Science and Engineering Dalian University of Technology Institute of Advanced Wear & Corrosion Resistance and Functional Materials Jinan University School of Mechanics and Civil Engineering China University of Mining and Technology School of Physical Sciences Great Bay University School of Materials Science andEngineering Harbin Institute of Technology State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical Engineering Nanjing Tech University Beijing Advanced Innovation Center for Materials Genome Engineering Research Institute for Carbon Neutrality University of Science and Technology Beijing Department of Mechanical Engineering The University of Hong Kong School of Computing Macquarie University Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic Engineering Shenzhen University State Key Laboratory for Advanced Metals and Materials University of Science and Technology Beijing State Key Laboratory of Materials Processing and Die & Mould Technology School of Materials Science and Engineering Huazhong University of Science and Technology Institute of materials Shanghai University Department of Materials Science and Engineering C

Owing to their exceptional properties, high-entropy alloys(HEAs) and high-entropy materials have emerged as promising research areas and shown diverse applications. Here,the recent advances in the field are comprehensively reviewed,organized into five sections. The first section introduces the background of HEAs, covering their definition, significance,application prospects, basic properties, design principles, and microstructure. The subsequent section focuses on cutting-edge high-entropy structural materials, highlighting developments such as nanostructured alloys, grain boundary engineering,eutectic systems, cryogenic alloys, thin films, micro-nano-lattice structures, additive manufacturing, high entropy metallic glasses, nano-precipitate strengthened alloys, composition modulation, alloy fibers, and refractory systems. In the following section, the emphasis shifts to functional materials, exploring HEAs as catalysts, magneto-caloric materials, corrosion-resistant alloys, radiation-resistant alloys, hydrogen storage systems, and materials for biomedicine. Additionally, the review encompasses functional high-entropy materials outside the realm of alloys, including thermoelectric, quantum dots, nanooxide catalysts, energy storage materials, negative thermal expansion ceramics,and high-entropy wave absorption materials. The paper concludes with an outlook, discussing future directions and potential growth areas in the field. Through this comprehensive review,researchers, engineers, and scientists may gain valuable insights into the recent progress and opportunities for further exploration in the exciting domains of high-entropy alloys and functional materials.

关键词： Cutting-edge structural materials Cutting-edgefunctional materials High entropy alloys

A Combination Model for Image Denoising

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Acta Mathematicae Applicatae Sinica 2016年第3期32卷 781-792页

作者： yi-ping XU School of Science Southwest University of Science and Technology

In this paper, we propose an efficient combination model of the second-order ROF model and a simple fourth-order partial differential equation （PDE） for image denoising. The split Bregman method is used to convert the nonlinear combination model into a linear system in the outer iteration, and an algebraic multigrid method is applied to solve the linear system in the inner iteration. Furthermore, Krylov subspace acceleration is adopted to improve convergence in the outer iteration. At the same time, we prove that the model is strictly convex and exists a unique global minimizer. We have also conducted a variety of numerical experiments to analyze the parameter selection criteria and discuss the performance of ~he fourth-order PDE in the combination model. The results show that our model can reduce blocky effects and our algorithm is efficient and robust to solve the proposed model.

关键词： image denoising partial differential equations split Bregman method algebraic multi-grid method Krylov subspace acceleration

The Effects of Natural Capital Protection on Pastoralist's Livelihood and Management Implication in the Source Region of the Yellow River, China

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Journal of Mountain Science 2013年第5期10卷 885-897页

作者： Fang yi-ping Institute of Mountain Hazards& Environment Chinese Academy of Sciences

The interaction among different livelihood capitals is a key to generate a deeper understanding of the livelihood *** this paper,we use net income per capita(economic capital),meat and milk production per capita(physical capital),and areas of fenced pasture,livestock shelter,grassland rodent control and planted grassland(physical capital) as proxy indicators of livelihood promotion,livelihood provision,and livelihood protection *** developing a correlation model between pastoralists' livelihood protection and improvement,we found that(1) there is a statistically significant correlation between the pastoralists' livelihood protection and promotion;(2) based on the maximum effect of pastoralists' livelihood promotion and provision,there is a benchmark in the effect of the intervention intensity of livelihood capital(grassland resource protection) on livelihood improvement;(3) on basis of two indicators,*** income per capita and meat production per capita,the reasonable scales of fenced pasture,livestock shelter and planted grassland are less than 843,860 and 46 thousand hectares(hm2) per year *** the marginal effect of livelihood protection,moderately decreased areas of fenced pasture and planted grassland,and increased area of livestock shelter is a critical to ensure pastoralist's livelihood sustainability.

关键词： Regional sustainability Natural capitalprotection Pastoralist's livelihood Source Region ofthe Yellow River

Changes in the food supply capacity of alpine grassland ecosystem:A dialectic synthesis of natural and anthropogenic drivers

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Advances in Climate Change Research 2020年第1期11卷 1-10页

作者： FANG yi-ping Institute of Mountain Hazards&Environment Chinese Academy of SciencesChengdu610041China College of Resource and Environment University of Chinese Academy of SciencesBeijing100049China

Grassland-based animal husbandry and livestock production is the main contributor to livelihood creation for *** using the structural dynamics method,this study quantified the changes in the food supply capacity(FSC)of alpine grassland ecosystem and sensitivity to significant *** findings indicated that:i)Natural factors were the dominated forces affecting FSC,and their contribution was 71.3%.Of these natural elements,the net primary productivity(NPP)and precipitation were the largest contributors,accounting for approximately 35%.The sensitivity index of the FSC to NPP and precipitation during grassland growing season were 4.1 and 1.9 *** the contrary,human factors like warm shed area,density of road,capacity for access to information,contributed to 28.7%of the total ***)More intense snow disaster had a larger negative impact on *** disaster can cause dramatic reduction in FSC,with a loss rate of 27.6%and with none intense disaster more negative impacts,iii)The continuing increase of FSC in the past 30 years from 1984 to 2014 was due to the significant increase of precipitation and NPP in the growing season of alpine ***,successful adaptation to climate change was critical to combat the climatic adversely impact on ***,strengthening information dissemination,road accessibility and knowledge popularization of local residents'disaster reduction should be place high priority for improving FSC。

关键词： Food supply capacity Alpine grassland ecosystem Structural dynamics method Snow disaster Permafrost

全球竞争力视域下高职英语教学模式的创新研究

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保险职业学院学报 2024年第4期38卷 92-96页

作者：易平戴心怡长沙职业技术学院湖南长沙410217 长沙商贸旅游职业技术学院湖南长沙410116

全球化背景下,全球竞争力被视为21世纪的“通行证”,包括认知、个人和人际等3个层面的6大核心素养。在全球化进程中,培养大学生的全球竞争力是中国高等教育发展的必然趋势,全球竞争力的培育成为我国职业院校英语教师新的议题。为培养具... 详细信息

全球化背景下,全球竞争力被视为21世纪的“通行证”,包括认知、个人和人际等3个层面的6大核心素养。在全球化进程中,培养大学生的全球竞争力是中国高等教育发展的必然趋势,全球竞争力的培育成为我国职业院校英语教师新的议题。为培养具有国际视野的高素质国际化人才,高职英语教师应从增进国际理解、推进国与国间协同发展出发,立足本土国际化培养,从教学目标、教学内容和教学手段的国际化以及课前、课中、课后教学全过程等多个维度,创新公共英语教学模式,致力于培养学生的英语能力和对世界议题的理解力。

关键词：全球竞争力高职英语教学模式创新

回归温度和时间对深冷变形7A85铝合金显微组织、力学性能和腐蚀行为的影响

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Transactions of Nonferrous Metals Society of China 2024年第2期34卷 392-407页

作者：王当张文学易幼平黄始全何海林张京京中南大学轻合金研究院长沙410083 中南大学高性能复杂制造国家重点实验室长沙410083 首都航天机械有限公司北京100076 中南大学机电工程学院长沙410083

为了平衡合金的强度、塑性与耐蚀性,在不同回归温度和时间条件下对深冷变形7A85铝合金的显微组织和综合性能进行研究。结果表明,在较低回归温度和时间的回归再时效(RRA)制度和T6(120℃,24h)制度下,合金具有较高的强度,但耐蚀性较差。对... 详细信息

为了平衡合金的强度、塑性与耐蚀性,在不同回归温度和时间条件下对深冷变形7A85铝合金的显微组织和综合性能进行研究。结果表明,在较低回归温度和时间的回归再时效(RRA)制度和T6(120℃,24h)制度下,合金具有较高的强度,但耐蚀性较差。对于RRA,在一定范围内增加回归温度和时间会降低合金的强度,但合金的电导率和耐蚀性显著提高。然而,过度地增加回归温度和时间使合金的耐蚀性降低。相同的回归温度下,随着回归时间的延长,合金的伸长率先减小后增大。与三向深冷变形7A85铝合金的最佳匹配的制度为RRA180-0.5((120℃,24 h)+(180℃,0.5 h)+(120℃,24 h))。

关键词：深冷变形7A85铝合金回归温度回归时间强度耐蚀性最佳制度

手法淋巴引流联合“合穴”按摩综合治疗对肿瘤患者肢体淋巴水肿的影响

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泰州职业技术学院学报 2024年第3期24卷 90-93页

作者：陈娟李祎萍南京医科大学附属泰州人民医院江苏泰州225300

目的探讨手法淋巴引流联合“合穴”按摩综合治疗对肿瘤患者肢体淋巴水肿的影响。方法选择2022年6月至2023年12月在泰州市人民医院肿瘤科、妇科、乳腺外科病区住院的60例肢体淋巴水肿患者为研究对象,采用随机信封法将患者分为研究组和对... 详细信息

目的探讨手法淋巴引流联合“合穴”按摩综合治疗对肿瘤患者肢体淋巴水肿的影响。方法选择2022年6月至2023年12月在泰州市人民医院肿瘤科、妇科、乳腺外科病区住院的60例肢体淋巴水肿患者为研究对象,采用随机信封法将患者分为研究组和对照组各30例,对照组患者给予常规护理手法引流,研究组患者则开展常规护理手法引流联合“合穴”按摩综合治疗,对比两组治疗前后患肢与健肢水肿周径差值及肢体淋巴水肿治疗效果。结果研究组治疗前后肢体周径差值明显大于对照组,患者的肢体水肿情况改善明显,差异有统计学意义(P<0.05)。结论手法淋巴引流联合“合穴”按摩综合治疗对肿瘤患者肢体淋巴水肿改善效果好,能提高患者的生活质量,值得临床应用。

关键词：淋巴水肿手法引流 “合穴”按摩生活质量