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31.
Due to rapid socioeconomic development in recent years, the influence of human activities on the urban ecosystem and environment is becoming more pronounced, causing increases in accumulated pollutants, resource consumption, and built-up land area. At this time, cities are facing complex ecological threats. We designed a platform to classify and assess the various types of ecological risks that cities and urban agglomerations may encounter. We used PHP to develop a web-based application, with nginx as the platform server, and MySQL to manage the background database. The platform provides users with a clearly structured, visual platform to manage ecological risk. By using this platform, users can quickly identify regional risk sources, find and describe risk factors, and predict possible consequences caused by these risks based on simulation modeling. The forecasting model and database can be synchronously updated and adjusted according to the actual situation. The visual web management platform and user security login system employ the MD5 encryption algorithm. The platform is designed to provide convenient, accurate, and scientific decision-making services for urban planning, construction, environmental protection, and other related areas. 相似文献
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基于XML语言的信息隐藏方法 总被引:5,自引:2,他引:5
XML作为网络中的信息交换格式,一出现便得到了广泛的应用和支持。XML不是一种普通的文本语言,它用于置标电子文档,是一种使其数据具有结构化的置标语言。利用XML的这一特性,可以将秘密的信息隐藏到XML文本中。笔者通过研究XML语言的基本特性和XML语言在网络中的应用,提出了几种基于XML语言的信息隐藏方法,这种方法的理论基础简单,同时也便于在实际中应用。 相似文献
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R. Kent Jones John T. Dale 《Journal of the American Water Resources Association》1977,13(5):1007-1019
ABSTRACT: Worldwide development of water resources and control of pollution would be improved by the ability for direct, multilateral communication between workers in the dozens of different language communities involved. Current language-based problems which should be eliminated include (1) incomplete diffusion of scientific knowledge, (2) technical inbreeding, (3) unsatisfactory international conferences, (4) money wasted on translation, and (5) unstandardized technical terminology. General education in a common second language for international use can eliminate these conditions. Ethnic languages are not qualified for this purpose, because of their national biases and extreme learning difficulties. The Esperanto language is free of these limitations, and its application is recommended as a means for improving the overall performance of the industry. 相似文献
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语言是人类用来表达情感和交流思想的工具。在体育教学过程中,教师若能讲究语言的科学性和艺术性,既能使学生产生良好的心理定势和情感变化,又能激发学生的学习兴趣。本文通过对体育教师在体育教学过程中进行不同的讲解方式进行分析,进而阐明在体育教学中如何运动理论讲解使教学达到最佳效果。 相似文献
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Emerging sensors, computers, network technologies, and connected platforms result potentially in an immeasurable collection of data within plant operations. This creates the possibility of solving problems innovatively. Because most of the data appear to be unstructured or semi-structured, organizations shall design and adopt new strategies. Further, workflow architectures with data analytics are needed including machine learning tools and artificial intelligence techniques before proto-type solutions can be developed. We shall discuss several prospects of using (big) data analytics integrated with cloud services to produce solutions for improving plant operations. The paper outlines the vision and a systematic framework highlighting the data analytics lifecycle in the area of plant operation, process safety, and environmental protection. Four rather diverse example case studies are demonstrated including (1) deep learning-based predictive maintenance monitoring modeling, (2) Natural Language Processing (NLP) for mining text, (3) barrier assessment for dynamic risk mapping (DRA), and (4) correlation development for sustainability indicators. It further discusses the challenges in both research and implementation of proposed solutions in the industry. It is concluded that a well-balanced integrated approach including machine supporting decisions integrated with expert knowledge and available information from various key resources is required to enable more informed policy, strategic, and operational risk decision-making leading to safer, reliable and more efficient operations. 相似文献
36.
Robert J. Lennox Diogo Veríssimo William M. Twardek Colin R. Davis Ivan Jarić 《Conservation biology》2020,34(2):462-471
Culturomics is emerging as an important field within science, as a way to measure attitudes and beliefs and their dynamics across time and space via quantitative analysis of digitized data from literature, news, film, social media, and more. Sentiment analysis is a culturomics tool that, within the last decade, has provided a means to quantify the polarity of attitudes expressed within various media. Conservation science is a crisis discipline; therefore, accurate and effective communication are paramount. We investigated how conservation scientists communicate their findings through scientific journal articles. We analyzed 15,001 abstracts from articles published from 1998 to 2017 in 6 conservation-focused journals selected based on indexing in scientific databases. Articles were categorized by year, focal taxa, and the conservation status of the focal species. We calculated mean sentiment score for each abstract (mean adjusted z score) based on 4 lexicons (Jockers-Rinker, National Research Council, Bing, and AFINN). We found a significant positive annual trend in the sentiment scores of articles. We also observed a significant trend toward increasing negativity along the spectrum of conservation status categories (i.e., from least concern to extinct). There were some clear differences in the sentiments with which research on different taxa was reported, however. For example, abstracts mentioning lobe finned fishes tended to have high sentiment scores, which could be related to the rediscovery of the coelacanth driving a positive narrative. Contrastingly, abstracts mentioning elasmobranchs had low scores, possibly reflecting the negative sentiment score associated with the word shark. Sentiment analysis has applications in science, especially as it pertains to conservation psychology, and we suggest a new science-based lexicon be developed specifically for the field of conservation. 相似文献
37.
Mukta Kulkarni 《组织行为杂志》2015,36(1):128-146
Language‐based diversity is a relatively understudied area within diversity research. Drawing upon the social identity‐based fault lines literature, the present paper describes the effects of language‐based diversity within organizations operating in India. Interview‐based findings indicate that organizationally mandated languages are occasionally disregarded by employees in both national and multinational organizations. Respondents noted how even benign and momentary language switching can lead to the formation of language‐based groups and cause negative consequences such as feelings of being devalued. Respondents also noted strategies that let them attenuate negative effects of multilingualism while simultaneously leveraging its benefits. Overall, the present study indicates that momentary exclusion based on incomprehensible language, when experienced on a daily basis, may have a far‐reaching influence on individual and team functioning. Findings thus point to language use as a trigger that can activate social identity‐based fault lines. Copyright © 2014 John Wiley & Sons, Ltd. 相似文献
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本文首先介绍了“语感”的概念和意义,强调了语感是对语言内涵的感受与体验的一种外在表现,是人们在长期的语言实践中形成的对语言文字敏锐、丰富的感受领悟能力。然后从多角度分析了在英语教学中培养学生英语语感的重要性。最后阐述并探讨了如何在教学中培养学生的英语语感。 相似文献