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Science and reflections: With some thoughts to young applied scientists and engineers
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作者 Robert L Nowack 《Earthquake Science》 2024年第5期459-493,共35页
I provide some science and reflections from my experiences working in geophysics,along with connections to computational and data sciences,including recent developments in machine learning.I highlight several individu... I provide some science and reflections from my experiences working in geophysics,along with connections to computational and data sciences,including recent developments in machine learning.I highlight several individuals and groups who have influenced me,both through direct collaborations as well as from ideas and insights that I have learned from.While my reflections are rooted in geophysics,they should also be relevant to other computational scientific and engineering fields.I also provide some thoughts for young,applied scientists and engineers. 展开更多
关键词 GEOPHYSICS computational and data science applied science and engineering
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Interactive Training Model of TRIZ for Mechanical Engineers in China 被引量:9
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作者 TAN Runhua ZHANG Huangao 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2014年第2期240-248,共9页
Abstract: Innovation is a process of taking an original idea and converting it into a business value, in which the engineers face some inventive problems which can be solved hardly by experience. TRIZ, as a new theor... Abstract: Innovation is a process of taking an original idea and converting it into a business value, in which the engineers face some inventive problems which can be solved hardly by experience. TRIZ, as a new theory for companies in China, provides both conceptual and procedural knowledge for finding and solving inventive problems. Because the government plays a leading role in the diffusion of TRIZ, too many companies from different industries are waiting to be trained, but the quantity of the trainers mastering TRIZ is incompatible with that requirement. In this context, to improve the training effect, an interactive training model of TRIZ for the mechanical engineers in China is developed and the implementation in the form of training classes is carried out. The training process is divided into 6 phases as follows: selecting engineers, training stage-l, finding problems, training stage-2, finding solutions and summing up. The government, TRIZ institutions and companies to join the programs interact during the process. The government initiates and monitors a project in form of a training class of TRIZ and selects companies to join the programs. Each selected companies choose a few engineers to join the class and supervises the training result. The TRIZ institutions design the training courses and carry out training curriculum. With the beginning of the class, an effective communication channel is established by means of interview, discussion face to face, E-mail, QQ and so on. After two years training practices, the results show that innovative abilities of the engineers to join and pass the final examinations increased distinctly, and most of companies joined the training class have taken congnizance of the power of TRIZ for product innovation. This research proposes an interactive training model of TRIZ for mechanical engineers in China to expedite the knowledge diffusion of TRIZ. 展开更多
关键词 TR1Z interactive training model innovative abilities for mechanical engineers knowledge diffusion
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What Do Educators Need to Teach for Prospective Knowledge Engineers? 被引量:1
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作者 Jay Liebowitz(Dept. of Management Science, George Washington University, Washington, D. C. 20052) 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 1995年第3期1-6,共6页
As expert systems technology has matured and migrated into mainstream computing, there arestill areas which are overlooked in education prospective knowledge engineers. This paper addresses this issue, and provides a ... As expert systems technology has matured and migrated into mainstream computing, there arestill areas which are overlooked in education prospective knowledge engineers. This paper addresses this issue, and provides a message to educators that expert and knowledge-based systems should be an importantstrategic science and technology for many organizations. 展开更多
关键词 Knowledge engineers Expert systems Intelligent systems Knowledge engineering
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Introduction of Education Systems for Clinical Engineers in Japan
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作者 Jun Yoshioka Keiko Fukuta +2 位作者 Hiroki Igeta Takeshi Ifuku Tadayuki Kawasaki 《中国医疗设备》 2016年第9期1-4,共4页
Japanese clinical engineer(CE) is a significant and unique profession compared with other nations with its dual clinical and technology focus and national licensing. The CE system of licensing was established in May 1... Japanese clinical engineer(CE) is a significant and unique profession compared with other nations with its dual clinical and technology focus and national licensing. The CE system of licensing was established in May 1987 under the Clinical Engineers Act. CEs are required to complete 3 to 4 years in designated schools and pass a national examination. It is a professional medical position responsible for the operation and maintenance of life-support and non-life-support medical device systems under the direction of physicians. Currently approximately 70 educational institutes- including technical colleges and universities- provide diverse and wide-ranging curricula from engineering to various clinical disciplines to produce CEs. Since clinical practice training is mandatory as a part of institute work, an important approach for CEs is gained by working in hospitals. The comprehensive curricula and the licensing system in Japan together serve to keep the appropriate quantity and quality of CEs. The Japan Association for Clinical Engineers(JACE) was established in February 1990; one of its aims is to support improvement of CEs throughout their careers through various lectures, seminars, on-the-job trainings, workshops, and an annual member meeting. New CEs can now take advantage of video e-learning. For junior CEs, there are seminars for hyperbaric oxygen therapy, blood purification, heart-lung bypass, respiratory therapy, operating room, intensive care unit, arrhythmia and aphaeresis related devices, as well as healthcare technology management(HTM). Also, the institutes provide a leadership seminar alongside this clinical practice training. Besides the licensing process, a proper certification system for CEs is a critical element in the clinical field. This enhances the ability of CEs to engage in more extensive duties and develop specialties, as well as to provide better healthcare. Associated societies provide certification with technology qualifications in dialysis, extracorporeal circulation, respiratory therapy, clinical medical devices, hyperbaric oxygen therapy, and aphaeresis treatment. JACE also launched a unique certification system in 2010, with specializations in blood purification, arrhythmia, respiratory, and hyperbaric oxygen care. What is the difference between certification by the associated societies and that offered by JACE? Certification by the associated societies provides basic knowledge to pass specialty examinations. Certifications by JACE promote deeper knowledge to enhance clinical decisionmaking and to encourage wider experience. JACE also continues to investigate other certifications. In summary, Japan has introduced a national licensing system for keeping an intake of constant quality and quantity of CEs. Additionally, ongoing workshops and seminars stimulate in-depth knowledge and a higher level of medical care for patients. Together, a system of lifelong education for CEs has been built. 展开更多
关键词 JAPANESE CLINICAL ENGINEER JAPAN Association for CLINICAL engineers national LICENSE CERTIFICATION system
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Function Words Analysis——A Reading Comprehension Aid for Chinese Engineers
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作者 Wu Shuoping and Liu Lian(The Second Academy, MAS) 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 1990年第1期86-90,共5页
Background Generally speaking. Chinese college graduates in the fifties and sixties took Russian as their second language, and those who graduated in the seventies had no second language to speak of. Now, in the years... Background Generally speaking. Chinese college graduates in the fifties and sixties took Russian as their second language, and those who graduated in the seventies had no second language to speak of. Now, in the years of our Open Door Policy, they find they have to learn some English and learn it quickly. They try to learn from radio and TV and many take English courses of 4 to 6 months, with varying degree of success. Their chief stumbling blocks 展开更多
关键词 Function Words Analysis A Reading Comprehension Aid for Chinese engineers
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Comparative Study of Information Technology Use by Architects, Engineers and Contractors
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作者 Pramen P. Shrestha David R. Shields +1 位作者 Dozie A. Oparaugo Nipesh Pradhananga 《Journal of Civil Engineering and Architecture》 2011年第5期375-388,共14页
The use of information technology (IT) in construction is expanding rapidly. More and more architecture, engineering, and construction companies are adopting new technologies in software design to help accelerate an... The use of information technology (IT) in construction is expanding rapidly. More and more architecture, engineering, and construction companies are adopting new technologies in software design to help accelerate and accurately carry out their functions. Based on a research study carried out in Southern Nevada with a questionnaire survey of 54 construction-related firms, this study aims to compare the types and extent of IT use by architects, engineers, and contractors. It also explores the level of IT skills possessed by professionals working in the industry. The study found that architects mostly used design software whereas engineers and contractors used scheduling and estimating software. All of the respondents believed that IT helped to improve their work productivity. The majority of the respondents thought that IT is useful for Construction Management (CM) students: engineers and architects thought that CM students should take more scheduling and estimating software courses and contractors thought that they should take more scheduling and quantity take-off software courses. 展开更多
关键词 Information technology CONTRACTOR engineers ARCHITECTURE construction management.
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Shanghai Hosts the World Engineers' Convention 2004
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《ZTE Communications》 2004年第2期63-63,共1页
The World Engineers’ Convention2004(WEC2004)was held onNovember 2-6,2004 in Shanghai,China. The motto of the conventionis“Engineers Shape the SustainableFuture.”It advocates that engineersshould take the task of ma... The World Engineers’ Convention2004(WEC2004)was held onNovember 2-6,2004 in Shanghai,China. The motto of the conventionis“Engineers Shape the SustainableFuture.”It advocates that engineersshould take the task of makingpeople’s life better and commit tocreating a new world.Engineers should be well awareof their responsibilities:developingnew technologies and making good 展开更多
关键词 World Convention 2004 Shanghai Hosts the World engineers
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University culture, project culture and enterprise culture jointly build the training road of the excellent engineers
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作者 Chen Dongsong 《International English Education Research》 2014年第3期182-186,共5页
The "Education and training plan of excellence engineers" is the base to comprehensively improve the training quality of the engineering talents, and is the power and guarantee of our country to march towards the gr... The "Education and training plan of excellence engineers" is the base to comprehensively improve the training quality of the engineering talents, and is the power and guarantee of our country to march towards the great power of the engineering education fi'om the engineering educational power. In the training process, not only it is required to complete the training and improvement of the theoretical knowledge, the practical abilities and the engineering qualities in the colleges, but it also needs the active participation and the close cooperation of the enterprises. Therefore, the students will have the influence of the effects and edification from the university culture, the project culture and the enterprise culture, and will feel the power and benefits a variety of cultures bring about by interleaving. This paper expounds the important position and the function of the university culture, the project culture, and the enterprise culture in the personal training, and elucidates that the complete fusion of the three is the social ideal and support to complete the task of cultivating the outstanding engineers. 展开更多
关键词 University culture engineering culture enterprise culture cultivation of the outstanding engineers
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Four Engineers...
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《英语自学》 2000年第3期44-,共1页
There are four engineers traveling in a car;a mechanical engineer,a chemical engi-neer,an electrical engineer and a comput-er engineer.The car breaks down.“Sounds to me as if the pistons have seized.We ll have to str... There are four engineers traveling in a car;a mechanical engineer,a chemical engi-neer,an electrical engineer and a comput-er engineer.The car breaks down.“Sounds to me as if the pistons have seized.We ll have to strip down the engine before we canget the car working again,”says the 展开更多
关键词 Four engineers
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Engineers in the Making
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作者 Ge Lijun Ibrahima Mbodj 《ChinAfrica》 2017年第3期36-37,共2页
FOR Martine DiengAwa and Seydou KaThierno. two 18-year-old classmates from Kolda Town in south Senegal, the prospect of studying abroad after high school seemed an unimaginable and almost impossible dream. Little did ... FOR Martine DiengAwa and Seydou KaThierno. two 18-year-old classmates from Kolda Town in south Senegal, the prospect of studying abroad after high school seemed an unimaginable and almost impossible dream. Little did they know that they would end up a few months later being classmates again, but this time in faraway China, 展开更多
关键词 engineers in the Making
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A Perspective on Smart Process Manufacturing Research Challenges forProcess Systems Engineers 被引量:9
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作者 Ian David Lockhart Bogle 《Engineering》 SCIE EI 2017年第2期161-165,共5页
The challenges posed by smart manufacturing for the process industries and for process systems engineering(PSE) researchers are discussed in this article. Much progress has been made in achieving plant- and site-wid... The challenges posed by smart manufacturing for the process industries and for process systems engineering(PSE) researchers are discussed in this article. Much progress has been made in achieving plant- and site-wide optimization, hut benchmarking would give greater confidence. Technical challenges confrontingprocess systems engineers in developing enabling tools and techniques are discussed regarding flexibilityand uncertainty, responsiveness and agility, robustness and security, the prediction of mixture propertiesand function, and new modeling and mathematics paradigms. Exploiting intelligence from big data to driveagility will require tackling new challenges, such as how to ensure the consistency and confidentiality ofdata through long and complex supply chains. Modeling challenges also exist, and involve ensuring that allkey aspects are properly modeled, particularly where health, safety, and environmental concerns requireaccurate predictions of small but critical amounts at specific locations. Environmental concerns will requireus to keep a closer track on all molecular species so that they are optimally used to create sustainablesolutions. Disruptive business models may result, particularly from new personalized products, but that isdifficult to predict. 展开更多
关键词 SMART MANUFACTURING Process systems engineering UNCERTAINTY FLEXIBILITY Optimization MODEL-BASED control
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Active Machine Learning for Chemical Engineers:A Bright Future Lies Ahead! 被引量:1
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作者 Yannick Ureel Maarten R.Dobbelaere +4 位作者 Yi Ouyang Kevin De Ras Maarten K.Sabbe Guy B.Marin Kevin M.Van Geem 《Engineering》 SCIE EI CAS CSCD 2023年第8期23-30,共8页
By combining machine learning with the design of experiments,thereby achieving so-called active machine learning,more efficient and cheaper research can be conducted.Machine learning algorithms are more flexible and a... By combining machine learning with the design of experiments,thereby achieving so-called active machine learning,more efficient and cheaper research can be conducted.Machine learning algorithms are more flexible and are better than traditional design of experiment algorithms at investigating processes spanning all length scales of chemical engineering.While active machine learning algorithms are maturing,their applications are falling behind.In this article,three types of challenges presented by active machine learning—namely,convincing the experimental researcher,the flexibility of data creation,and the robustness of active machine learning algorithms—are identified,and ways to overcome them are discussed.A bright future lies ahead for active machine learning in chemical engineering,thanks to increasing automation and more efficient algorithms that can drive novel discoveries. 展开更多
关键词 Active machine learning Active learning Bayesian optimization Chemical engineering Design of experiments
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TRIZ: The Enlightenment of the Training Mode of Excellent Chinese Engineers 被引量:1
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作者 Yiyang Fan Yuting Qiu Xing Zhang 《Engineering(科研)》 2012年第12期908-913,共6页
China has been the largest country in terms of the scale of higher engineering education in the world. The training plan of excellent engineers (TPEE) that launched in 2010 is to train various types of high-quality en... China has been the largest country in terms of the scale of higher engineering education in the world. The training plan of excellent engineers (TPEE) that launched in 2010 is to train various types of high-quality engineers and technical personnel who have strong innovative abilities and meet the need of economic and social development. The theory of inventive problem solving (TRIZ), as a scientific methodology to solve innovation problems, provides a theoretical basis and practical guideline for the training of excellent engineers. This paper analyzes the teaching philosophy and methods for the training of excellent engineers within TRIZ framework from the demand perspective, and then discusses the enlightenment of disseminating TRIZ in the following aspects, such as TRIZ application in science, technology, engineering, and mathematics (STEM) education, faculty development, platform development of innovative education and so on. 展开更多
关键词 TRIZ EXCELLENT ENGINEER Training Mode Engineering Education
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Powerful Force of The Media to Environmental Issues and Its Contribution to Environmental Engineers
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作者 Esra Yel Meral Serarslan 《Journalism and Mass Communication》 2011年第1期57-67,共11页
Environmental Engineers are generally unable to proclaim their projects or their engineering solutions against any problem to large masses. Environmental Engineering includes two fundamental approaches: preventing th... Environmental Engineers are generally unable to proclaim their projects or their engineering solutions against any problem to large masses. Environmental Engineering includes two fundamental approaches: preventing the pollution, and solving the poUution problem after it is arised. Although the first one is preferred, in many developing countries the general tendency is as the solution of pollution after generation. Neither politicians nor public are willing to pay before seeing the threat, although they should be. This conflict decelerates the works to keep the environment and increase the non-success stories and problemmatic situatons. The growing concern in pollution problems gave rise to intensive coverage of the media as one of their main public responsibilities. Because file influence of the media has been regarded as a powerful force in society for many years, the coverage of environmental problems increase the awareness and reduce the resistance against the engineering works. Under these circarnstances this study focuses on the effect of media on public awareness and their participation in the solution of environmental problems. When the journalists are aware of their role in environmental issues, the program will be of high quality and accomplishes the objective, therefore supporting the Environmental Engineers in creating solutions. As a sample, a national Turkish commercial broadcasting company programs were investigated via contents analy sis and discussed. 展开更多
关键词 environmental issues engineering MEDIA TV
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Factors Influencing the Professional Development of Engineering Students Under the"Pian for Educating and Training Outstanding Engineers"
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作者 Xuting Tang Hui Guo 《ECNU Review of Education》 2024年第3期784-808,共25页
Purpose:This study investigates the role of the engineering education environment created by the implementation of the“Plan for Educating and Training Outstanding Engineers”(PETOE)on the professional capability deve... Purpose:This study investigates the role of the engineering education environment created by the implementation of the“Plan for Educating and Training Outstanding Engineers”(PETOE)on the professional capability development of engineering students from the perspective of students'experience.Design/Approach/Methods:This study uses data from the National Engineering Student Survey and multiple regression analysis to explore the role of institutional resources and support,teaching reforms,and interpersonal interaction on the professional development of engineering students.Findings:The opportunities for on-campus practical activities provided by the institution,content of the teachers'teaching,teaching methods,comprehensive coursework assessment,and interpersonal interactions contributed to the development of students'engineering competencies,with limited contributions from research-based teaching methods.Internship opportunities and international exchange environments were negatively associated with the development of engineering skills in an“unexpected”manner.OriginalityNalue:Focusing on students'experiences of engineering education reform,this study comprehensively evaluates the implementation of the reform measures adopted under PETOE.Furthermore,it assesses how corresponding changes in the general educational environment relate to students’professional capability development.Thus,this study addresses an important research gap in educational reformthe lack of domestic empirical studies in China. 展开更多
关键词 Engineering capability development engineering education environment “Plan for Educating and Training Outstanding engineers”(PETOE)
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WOMEN PROVINGTHEY CANHANDLE POWER Engineers with State Grid in Tianjin Are Defying Traditional Roles
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作者 Yang Cheng 《Women of China》 2024年第9期38-41,共4页
A woman-adorned in a heavy,custom-made,metal-shielding suit-is hard at work,dozens of meters above the ground.Arcs of electricity flicker at her fingertips,and the crackling sound of current lingers in her ears.Lookin... A woman-adorned in a heavy,custom-made,metal-shielding suit-is hard at work,dozens of meters above the ground.Arcs of electricity flicker at her fingertips,and the crackling sound of current lingers in her ears.Looking up from the ground,the engineer,working on an electric tower,resembles a nimble dancer,gracefully navigating along the power lines connecting various pylons.This is a typical workday for a live-line-maintenance engineer with State Grid Tianjin Electric Power Company.In North China's Tianjin Municipality,women engineers-many of whom born after 1990-are proving they are as capable and dedicated as their male counterparts. 展开更多
关键词 connecting TIANJIN ENGINEER
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基于UE5引擎的栎阳城数字化保护与展示研究
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作者 张春强 柯云画 《城市建筑》 2025年第3期16-22,共7页
近年来,虚拟现实技术快速发展,结合VR设备可以为人们提供良好的沉浸式和交互式体验,在古建筑数字化展示和保护领域有着较大的应用和研究意义。文章选取UE5(Unreal Engine 5)作为探讨虚拟现实技术的软件平台,以栎阳城古建筑遗址为例,分... 近年来,虚拟现实技术快速发展,结合VR设备可以为人们提供良好的沉浸式和交互式体验,在古建筑数字化展示和保护领域有着较大的应用和研究意义。文章选取UE5(Unreal Engine 5)作为探讨虚拟现实技术的软件平台,以栎阳城古建筑遗址为例,分析其从采集数据、建立三维模型、蓝图编程进行互动展示直到最后文件输出的应用优势,提出古建筑虚拟展示效果优化方法。展望虚拟现实技术的发展趋势,以期进一步降低古建筑保护中应用虚拟现实技术的学习成本,并完善实时交互模式,展现更真实的虚拟场景效果。UE5引擎的应用使得古建筑与虚拟现实技术进一步紧密、便捷地关联,给用户带来了全新的虚拟体验,同时为古建筑文化遗产保护提供了可行的数字化途径。 展开更多
关键词 Unreal Engine 5 古建筑三维模型 虚拟现实技术 栎阳城遗址 文化遗产保护 数字化展示
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基于时序Sentinel-2数据的江汉平原养殖池提取
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作者 陈志洋 毛德华 +4 位作者 王宗明 林楠 贾明明 任春颖 王铭 《自然资源遥感》 北大核心 2025年第1期169-178,共10页
近年来,水产养殖业的迅速发展引发了一系列的生态环境问题。江汉平原作为我国最重要的淡水养殖基地之一,研究其养殖池变化对我国的生态保护至关重要。因此,该文面向江汉平原区域,基于谷歌地球引擎(Google Earth Engine,GEE)与Sentinel-... 近年来,水产养殖业的迅速发展引发了一系列的生态环境问题。江汉平原作为我国最重要的淡水养殖基地之一,研究其养殖池变化对我国的生态保护至关重要。因此,该文面向江汉平原区域,基于谷歌地球引擎(Google Earth Engine,GEE)与Sentinel-2密集时间序列影像,提出了一种结合K均值聚类(K-means)与层次决策树分类算法的养殖池提取与变化监测方法,实现了2016—2022年逐年的江汉平原养殖池精确提取及时空格局分析。结果表明:结合K-means与融入时间变化特征的层次决策树算法能够实现精准的养殖池分类,每年总体分类精度均达到91.90%以上,Kappa系数达到0.84以上;2022年江汉平原的水产养殖池面积为2126.43 km^(2),其中,43.24%的养殖池集中分布于荆州市,宜昌市养殖池面积最小仅占0.76%;江汉平原养殖池在2016—2022年期间的动态变化呈现出明显的空间异质性,整体呈现增加的趋势,总面积从1947.43 km^(2)增加到2126.43 km^(2),增加了9.19%。所提方法为养殖池的精准监测提供了重要参考,所得数据集对支持江汉平原地区生态保护和对可持续发展目标的评估具有重要的借鉴价值和现实意义。 展开更多
关键词 江汉平原 内陆养殖池 K-MEANS 时间序列数据 Google Earth Engine
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基于EL-InVEST模型的玛多地震对高寒湿地面积及生境质量影响研究
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作者 顾天江 杜凯 +5 位作者 毛旭锋 金鑫 于红妍 唐文家 吴艺 刘泽碧 《生态环境学报》 北大核心 2025年第2期209-221,共13页
为准确评估2021年玛多地震对高寒湿地的影响,选取震中6度烈度带为研究区,依托Google Earth Engine(GEE)平台,融合Sentinel-2、Sentinel-1以及SRTM1数据,构建原始光谱、植被指数、水体指数、红边指数、纹理特征、地形、雷达特征7个遥感... 为准确评估2021年玛多地震对高寒湿地的影响,选取震中6度烈度带为研究区,依托Google Earth Engine(GEE)平台,融合Sentinel-2、Sentinel-1以及SRTM1数据,构建原始光谱、植被指数、水体指数、红边指数、纹理特征、地形、雷达特征7个遥感特征集,利用Stacking算法构建集成学习模型实现震前、震后的高寒湿地分类;结合InVEST模型实现地震前后生境质量的定量评估。结果表明,1)集成学习分类精度优于支持向量机和随机森林,特征优选方案下分类精度最高(92.741%,Kappa系数为0.902),较支持向量机和随机森林有所提高。2)在原始光谱的基础上加入纹理特征,湖泊湿地和河流湿地的分类精度分别可达0.987、0.933,加入地形特征后沼泽湿地分类精度可达0.857,纹理特征中的方差和相关性以及地形特征中的坡度、高程对高寒湿地分类效果影响显著。3)地震造成湿地面积减小,其中沼泽湿地减少43.088 km^(2),变化率为-0.254%;河流湿地减少31.654 km^(2),变化率为-3.522%;湖泊湿地面积下降4.971 km^(2),变化率为-0.303%。而裸地面积增加了36.160 km^(2)。4)生境质量均值从震前0.523下降到震后0.482,高等级生境质量面积占比从7.399%下降到5.993%,而低等级生境质量面积占比从2.191%上升到7.658%。该研究显示地震对高寒湿地产生负面影响,研究结果可为后续灾后生态恢复与管理提供依据。 展开更多
关键词 遥感分类 Google Earth Engine 地震 高寒湿地 特征优选 哨兵2号
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基于GEE的鄂尔多斯长时序植被NPP时空演变
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作者 刘哿 赵恒谦 +4 位作者 皇甫霞丹 付含聪 王盼 徐飞 韩添 《干旱区研究》 北大核心 2025年第2期299-311,共13页
利用Google Earth Engine(GEE)云计算平台,基于改进的CASA模型对鄂尔多斯2001—2020年间的植被净初级生产力(NPP)进行估算,并运用Sen斜率分析和MK趋势分析方法对NPP的时空变化进行深入分析,同时估算了其固碳能力。结果表明:(1)鄂尔多斯2... 利用Google Earth Engine(GEE)云计算平台,基于改进的CASA模型对鄂尔多斯2001—2020年间的植被净初级生产力(NPP)进行估算,并运用Sen斜率分析和MK趋势分析方法对NPP的时空变化进行深入分析,同时估算了其固碳能力。结果表明:(1)鄂尔多斯2001—2020年间植被NPP呈现明显的季节变化,最高值出现在7—8月,年平均NPP为78.04 g C·m^(-2)·a^(-1),整体呈波动上升趋势。(2)在空间分布上,NPP存在明显的异质性,东北部较高,西北部较低,高值区集中在达拉特旗和准格尔旗,低值区则主要分布在杭锦旗。(3)生态工程的实施与NPP变化并不完全同步,整体呈现先慢后快的特点,大部分区域在2011年后NPP变化速率显著提升,但杭锦旗等生态环境恶劣地区的改善较慢,有一定滞后性。(4)鄂尔多斯固碳量在2011年呈大面积负值,但2020年固碳量空间异质性显著增强,东部较高、西部较低,杭锦旗西部恢复仍需加强,而达拉特旗固碳能力显著提升。 展开更多
关键词 鄂尔多斯 Google Earth Engine CASA模型 植被净初级生产力 固碳能力
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