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Advances and development trends in eco-friendly pavements

Journal of Road Engineering 2021年第1期1卷 1-42页

作者： Aimin Sha Zhuangzhuang Liu Wei Jiang Lin Qi Liqun Hu Wenxiu Jiao Diego Maria Barbieri School of Highway Chang'an UniversityXi'an 710064China Key Laboratory of Special Area Highway Engineering of Ministry of Education Chang'an UniversityXi'an 710064China School of Materials Science and Engineering Chang'an UniversityXi'an 710064China Department of Civil and Environmental Engineering Norwegian University of Science and TechnologyTrondheim 7491Norway

The major contemporary in road pavement engineering is related to the creation of green and sustainable infrastructures,e.g.,reduction of environmental impacts,increase in traffic safety,and transportation efficiency,*** review presents the recent trends in research and the technical solutions developed so far to address these *** the analysis of research status in the past decades,a novel technology system of eco-friendly pavements is proposed considering two solutions,materials modification and structure *** construction of an eco-friendly pavement can be achieved thanks to several different technologies ensuring permeable,noise-reducing,self-luminous,and exhaust-decomposing properties as well as apporting lower heat absorbing and enhanced anti-/de-icing characteristics.A systematic review of these technologies is presented pivoting on four main aspects:technical principle,material and structural composition,performance evaluation,and engineering *** current trend in road engineering is combining the pavement infrastructure with various eco-friendly functions,e.g.,water permeability,noise reduction,low heat absorption,exhaust gas decomposition,and anti-/***,the review lists the drawbacks of the existing technologies,including high cost,single function,etc.,and depicts the future developing direction and architecture of the next generation of eco-friendly pavements in which the road infrastructure should have more environmentally friendly functions than the existing technology.

关键词： Road engineering Eco-friendly pavements Environmental impacts Integration of function-structure-material development trends

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development trends and Evaluation of Egbe Reservoir Water Nutrient Status in Ekiti State, Nigeria

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Journal of Life Sciences 2010年第1期4卷 7-16页

作者： Josephine Bolaji Edward Adiaha Aldah Alex Ugwumba Department of Zoology University of Ado Ekiti Ekiti State 0234 Nigeria Department of Zoology＇ University of lbadan lbadan Oyo State 0234 Nigeria

A study about some physicochemical parameters of Egbe reservoir was carried out from September 2005 to December 2006. The parameters include mean temperature, pH, conductivity, alkalinity, TSS, TDS, DO and BOD which have values of 28.7±0.9 ℃ ; 8.3±0.3; 831±172.5 μS/cm; 165.4±18.3 mg/L; 0.06±0.1 mg/L; 0.4±0.6 mg/L; 7.8±2.4 mg/L and 5.2±1.6mg/L, respectively. Temperature and pH were measured in the field using mercury-in-glass thermometer calibrated in degrees Celsius and pH meter, respectively. TSS and TDS were measured by grayimetric methods, while alkalinity was measured titrimetrically and DO and BOD were measured by Winkler＇s method. For the nutrients, nitrate was measured color±metrically, phosphate by Stannous Chloride method and sulphate by turbidimetric method. Mean concentration of nitrate, phosphate, and sulphate were 15.6±8.6 rag/L; 42.5±19.4 mg/L and 72.3±14.7 mg/L respectively. Nowadays, eutrophication of natural waters is one of the most significant causes of deterioration of water quality, and nitrates and phosphates are probably the key nutrients in controlling the growth of aquatic plants. Though the mean concentration of nitrates and phosphates in the reservoir water were within the acceptable limit, yet their concentrations in some locations of reservoir were high enough to encourage the growth of aquatic macrophytes which would increase productivities. Hence, it is necessary to check their further increase, and periodic monitoring and preventive measures must be adopted to save the reservoir from eutrophication.

关键词： Physico-chemical parameters development trends nutrients Egbe reservoir.

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Foreign Cooperation and development trends of the Russian Petroleum Industry and Prospects of Sino-Russian Cooperation in Oil and Gas

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Petroleum Science 2006年第3期3卷 90-96页

作者： Xie Bo Exploration ＆ Production Research Institute of SINOPEC Beijing 100083 China

This article is focused on the analysis of the international cooperation of the Russian petroleum industry and its development trend. Also discussed here are the patterns that the foreign oil companies used in acquiring Russian petroleum assets, and the cooperation models of petroleum exploration and production in Russia. The Russian government encourages foreign oil companies to establish strategic alliances with domestic companies that keep good relations with the government. To achieve this goal, the government provides foreign companies with the space for cooperation in such aspects as advanced technology and management culture. International cooperation in petroleum industry will be further developed under the macro-control of the Russia State energy strategy. The energy cooperation between China and Russia will enter a new phase full of hopes and challenges after the past unfavorable situation is gradually overcome.

关键词： Russia petroleum industry international cooperation development trends

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Research and development trends of hydrometallurgy:An overview based on Hydrometallurgy literature from 1975 to 2019

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Transactions of Nonferrous Metals Society of China 2020年第11期30卷 3147-3160页

作者： Li-pan JIA Jiang-jiang HUANG Ze-long MA Xu-heng LIU Xing-yu CHEN Jiang-tao LI Li-hua HE Zhong-wei ZHAO School of Metallurgy and Environment Central South UniversityChangsha 410083China Hunan Key Laboratory for Metallurgy and Material Processing of Rare Metals Changsha 410083China

Modern hydrometallurgy has been developing for more than 100 years and the related articles keep piling *** on a bibliometric analysis of the articles in Hydrometallurgy,the most authoritative journal in the field of hydrometallurgy,we try to catch the research and development trends from a global ***,keywords burstness shows that rare earth,recycling,lithium,ionic liquid,and thorium are the hotspots in recent years,and the economic and technological reasons behind them were discussed in ***,the proportion of biohydrometallurgy grows fast from 5%to 13%and the related articles are almost all about *** are some new directions such as direct preparation of materials in hydrometallurgical processes and ion-imprinted ***,the advanced instrument analysis methods such as XAFS(X-ray absorption fine structure),gene sequencing,and micro-CT promote the deep understanding of hydrometallurgy ***,the cooperation network and contribution of the main institutes were mapped.

关键词： development trends leaching solvent extraction biohydrometallurgy electro-hydrometallurgy CiteSpace

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development trends and Challenges of Industrial Internet of Things

Development Trends and Challenges of Industrial Internet of ...

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作者： Meng-liang LI Hong YANG Xiong GUO China Electronics Standardization Institute

ⅡoT is mainly used in all aspects of the whole life cycle, such as design, production, management and services. It is an important component of China’s strategic emerging industries and contains enormous economic value. After the traditional industries are transformed by ⅡoT, it will bound to provide the economic value, promote the transformation of economic development mode from production driven to innovation driven as well as adjustment of China’s industrial structure. This paper mainly introduces the basic theories, development trend and challenges of industrial Internet of Things, which has a certain guiding role for the development of industrial manufacturing.

关键词： Industrial internet of things (ⅡoT) Definition Characteristics development trends Challenges

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Panel Discussion on“development trends of Computer Science in the New Era”

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计算机教育 2024年第3期 26-29页

作者： Andrew Yao Nancy M.Amato Ann Copestake Sukyoung Ryu Yike Guo Yaqin Zhang Institute for Interdisciplinary Information Sciences Tsinghua UniversityBeijing100084China Department of Computing University of IllinoisUrbana61801U.S Department of Computer Science and Technology University of CambridgeCambridgeCB30FDUK Korea Advanced Institute of Science and Technology(KAIST) Yuseong-gu Daejeon34141Korea Hong Kong University of Science and Technology Hong Kong999077China Institute for AI Industry Research(AIR) Tsinghua UniversityBeijing100084China

At the panel session of the 3rd Global Forum on the development of Computer Science,attendees had an opportunity to deliberate recent issues affecting computer science departments as a result of the recent growth in the field.6 heads of university computer science departments participated in the discussions,including the moderator,Professor Andrew *** first issue was how universities are managing the growing number of applicants in addition to swelling class *** approaches were suggested,including increasing faculty hiring,implementing scalable teaching tools,and working closer with other departments through degree programs that integrate computer science with other *** second issue was about the position and role of computer science within broader *** generally agreed that all fields are increasingly relying on computer science techniques,and that effectively disseminating these techniques to others is a key to unlocking broader scientific progress.

关键词： development trends Computer science

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GIS Applications and development trends in China

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Journal of Landscape Research 2015年第1期7卷 33-34页

作者： DU Huishi YANG Yue SUN Hong SUN Baisheng CHENG Fuwei College of Tourism and Geographical Science Jilin Normal University Department of Geography Hebei Normal University for Nationalities

Since its conceptualization and creation in the 1960 s, Geographic Information System(GIS) has considerably developed. As a combination of traditional and modern technology, GIS has become an important part of modern management, decision-making, and command, contributing greatly to social progress and development. This article introduces the concepts of GIS, expounds on the GIS applications in China, and looks forward to developments in GIS technology in the future while reviewing the issues that GIS application development faces. GIS has evolved into an important branch of the information technology industry, with great vitality and broad development prospects.

关键词： GIS Research status development trends

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Evolution Characteristics and development trends of Sand Barriers

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Journal of Resources and Ecology 2017年第4期8卷 398-404页

作者：宁宝英马建霞姜志德陈春张欣利鲁景亮中国科学院兰州文献情报中心兰州730000 西北农林科技大学经济管理学院陕西杨凌712100

Sand barriers are one of the main measures used to prevent desertification and have been widely used in desertification control. Here, we use bibliometric methods and content analysis to summarize sand barrier type, applications and research. Existing problems in research are pointed out and revolution characteristics and development trends of sand barriers are discussed. We conclude that three main driving factors have stimulated sand barrier study： demand, technology and development concept. Developing environmentally friendly technology and promoting industrialization of sand area economies are future directions for sand barrier research.

关键词： sand barrier evolution characteristics development trends

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Application and development trends of Quarantine Greenhouse

Application and Development Trends of Quarantine Greenhouse

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国际农业工程大会

作者： Renquan Yang Zengchan Zhou Gang Wang Zhen Tian Beijing JingPeng Global Greenhouse Engineering ＆ Technology Co. Ltd. Beijing Agricultural Machinery Institute Beijing 100096 P. R. China Beijing JingPeng Global Greenhouse Engineering ＆ Technology Co. Ltd. Beijing Agricultural Machinery Institute Beijing 100096 P. R. China Beijing JingPeng Global Greenhouse Engineering ＆ Technology Co. Ltd. Beijing Agricultural Machinery Institute Beijing 100096 P. R. China Beijing JingPeng Global Greenhouse Engineering ＆ Technology Co. Ltd. Beijing Agricultural Machinery Institute Beijing 100096 P. R. China

＜正＞ Quarantine is necessary in order to guarantee quality of plant and animal in the course of importing and exporting. It is an important step to prevent insects illness from popularizing. It is necessary to building quarantine greenhouse. There are many characteristics in the quarantine greenhouse, for example, adjustable temperature, humidity and illumination according to need. The pressure of quarantine greenhouse may be positive, negative or ordinary. Besides quarantine greenhouse, there are some assistant isolation wards. Quarantine greenhouse is used in quarantine, research and plant growing of strict conditions. To build quarantine greenhouse is important to enhance agricultural consistent development.

关键词： quarantine greenhouse application development trends

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ibliometric research on the development of climate change in the BRI regions

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Advances in Climate Change Research 2021年第2期12卷 254-262页

作者： TAN Xian-Chun ZHU Kai-Wei SUN Yu-Ling ZHAO Wan-Yu CHEN Fangc Institutes of Science and development Chinese Academy of SciencesBeijing100190China School of Public Policy and Management University of Chinese Academy of SciencesBeijing100190China National Science Library Chinese Academy of SciencesBeijing100190China Department of Library Information and Archives Management University of Chinese Academy of ScienceBeijing100190China

Climate change is one of the great global *** clarify the research status of climate change in the Belt and Road Initiative(BRI)regions,the BRI countries can better deal with climate *** study aims to improve our understanding of the status and trends of researchon climate change in the BRI *** on keywords associated with the BRI and climate change,we undertake bibliometric research bycollecting 21,225 related SCI/SSCI articles published during *** and analysis revealed the topics and hotspots of research on BRI and climate *** findings are ***,although the number of published articles exhibited a rapidly growing trend,theirdistribution is extremely *** were mainly published by institutions from USA,UK,China,India,and Germany,while individualcontributions from most BRI countries was less than 1%of the publication ***,existing studies focused on climate change impactson BRI countries,in addition,climate mitigation and adaptation in BRI regions,especially the assessment of climate change risks and measuresand policies in response to climate change,was less watched in the ***,not all BRI regions have been examined by *** Africa,South Asia,and West Asia and North Africa are hotspots,while the Pacific and Central Asia are largely *** the future,BRI countries need to improve their research ability on climate change and more attention should be paid to the field of climate mitigation,especially on the assessment of climate change risks,measures,and policies,and BRI countries in the Oceania and Central Asia regions.

关键词： Belt and road initiative Climate change development trends Bibliometrics

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