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Niobium in Microalloyed Steels Unchallenged for Its Main Applications

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Journal of Iron and Steel Research International 2011年第S1期18卷 57-65页

作者： Nogueira Marcos A Stuart Carneiro Tadeu Companhia Brasileira de Metalurgia e Minerao Technical DirectorSao PauloBrazil Companhia Brasileira de Metalurgia e Minerao Managing DirectorSao PauloBrazil

During the past five decades niobium has emerged as the most important microalloying element in high strength *** first theories to explain its role were presented in the seminal publications of Woodhead,Morrison and *** niobium microalloyed steels are unchallenged for their main *** examples include linepipe for gas transportation,automotive steels used in body-in-white and structural parts,shipbuilding,steel towers and steel structures in civil construction that exhibit better fire resistance and seismic load *** technology for steelmaking helped emphasize the superior overall properties that can be attained with the use of *** linepipe is the best example of cleaner steel with carbon levels below 0.05% manufactured *** niobium microalloyed steels present the optimal balance of strength,toughness,weldability and *** paper describes the evolution of the technology associated with niobium in microalloyed steels,technology that secured its status as the efficient solution to solving today’s challenges:safety,energy efficiency and environmental *** paper also presents evidence that enhances the case that there is a secure,stable,long-term supply of the ferroniobium used to manufacture these steels.

关键词： Niobium in Microalloyed Steels Unchallenged for Its Main Applications

Performance analysis of deep learning CNN models for disease detection in plants using image segmentation

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Information Processing in Agriculture 2020年第4期7卷 566-574页

作者： Parul Sharma Yash Paul Singh Berwal Wiqas Ghai Department of Computer Science and Engineering RIMT UniversityMandi Gobindgarh 147301India Additional director Department of Technical EducationHaryanaIndia

Food security for the 7 billion people on earth requires minimizing crop damage by timely *** deep learningmodels forautomated detectionof diseases in plants suffer fromthe fatal flaw that once tested on independent data,their performance drops *** work investigates a potential solution to this problem by using segmented image data to train the convolutional neural network(CNN)*** compared to the F-CNN model trained using full images,S-CNN model trained using segmented imagesmore than doubles in performance to 98.6%accuracy when tested on independent data previously unseen by the models even with 10 disease *** only this,by using tomato plant and target spot disease type as an example,we show that the confidence of self-classification for S-CNN model improves significantly over F-CNN *** research work brings applicability of automated methods closer to non-experts for timely detection of diseases.

关键词： Machine learning Plant disease detection Image segmentation

BeiDou Navigation Satellite System Construction and Application

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Aerospace China 2013年第1期14卷 10-14页

作者： Yang Qiangwen technical director of China Satellite Navigation Office

After 10 years’ construction, the regional BeiDou Navigation Satellite System final network satellite was launched on October 25, 2012, formally providing free positioning, navigation, timing and short message services to users in the Asia-Pacific region since December, 2012. As a national major infrastructure, the BeiDou system is a long-term strategic development project of China and attracted strong support by the Chinese top leaders. SYSTEM CONSTRUCTION Development Goal The BeiDou Navigation Satellite System aims at supplying stable, reliable and quality satellite navigation services for customers worldwide, serving the globe and benefiting mankind. The construction of the system is being implemented

关键词：北斗卫星导航系统北斗导航卫星系统应用短消息服务网络卫星亚太地区基础设施北斗系统

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小型水坝安全管理现状(英文)

岩土工程学报 2008年第11期30卷 1713-1721页

作者： Joao Francisco Alves Silveira technical director SBB Engenharia Ltda 1265 Miguel Petroni St - Sao Carlos S.P. Brazil

提出了关于小型水坝安全管理的一些见解,并尝试区分小坝与大坝之间的主要特征。小型水坝的安全管理包括一些政策、程序和现场监测,目的在于将水坝风险最小化。有关设计标准、材料参数和小坝降等原始资料的仔细检查,小坝巡视检查表,水坝... 详细信息

提出了关于小型水坝安全管理的一些见解,并尝试区分小坝与大坝之间的主要特征。小型水坝的安全管理包括一些政策、程序和现场监测,目的在于将水坝风险最小化。有关设计标准、材料参数和小坝降等原始资料的仔细检查,小坝巡视检查表,水坝监测指导性文件和对小型坝按安全进行分级都是本文阐述的主要内容。

关键词：安全监测巡视检查小型水坝

Perspectives on Nutrition Needs for the New Millennium for South Asian Regions

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Biomedical and Environmental Sciences 2001年第1期14卷 66-74页

作者： KAMALA KRISHNASWAMY director National Institute of Nutrition Indian Council of Medical Research

South Asia is the most populated region of the world with several nutritional challenges. Though per capita food energy supply, child survival and life expectancy have improved, and even today large segments of the population are below the poverty line with high infant and maternal mortality rates. It is important to recognize the crucial role of nutrition throughout the life cycle from conception to old age. It is very necessary now to move from food security to nutrition security and improve the quality of foods both in macro and micronutrients in order to break the transgenerational effects of malnutrition. The key solutions to the problems should address the issue of social development, population stabilization, environmental degradation and inadequate health and nutritional services. Strategies for empowering women and actuating community participation as sustainable programmes for human development, measures to reduce underweight and stunting in children and prevention of micronutrient malnutrition across the population are required. Enhancing food and nutrition security through innovative diversified agriculture and dietary practices, prevention and control of infection, promotion of food safety and fortification of staples with appropriate attention on emerging chronic disorders are essential. Population control measures to stabilize the fertility rates, biotechnological approaches for genetically modified foods, nutrition surveillance based on assessment, analysis and action to address the logistic, technical and compliance issues with emphasis on promotion of breast feeding and complementary foods with adequate attention on the reproductive needs of adolescent girls, pregnant mothers and lactating women would eliminate low birth weight, stunting, and chronic energy deficiency in vulnerable groups. Focused studies on bioavailability of micronutrients and its enhancement, innovative horticulture interventions, fortifications, social marketing strat

关键词： for South Asian Regions Perspectives on Nutrition Needs for the New Millennium

Economic Growth is not at Odds with Environmental Efforts

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China Economist 2008年第3期3卷 65-75页

作者：齐建国 Deputy director and Research Fellow with Institute of Quantitative Economics and technical Economics CASS Director of Research Center of China's Circular Economy and Environmental Evaluation and Forecast CASS

This paper gives an analysis on the reasons for China's rapid economic growth, highlighting its momentum and challenges. It includes the study and forecast on the growth rate during the "11th Five-year Plan" period and the achievability of energy conservation and greenhouse gas emission reduction targets, putting forward four policy recommendations in response to the new developments in the economy since 2006.

关键词： the Chinese economy Economic growth Energy conservation and pollution reduction.

Hydrogen technologies and developments in Japan

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Clean Energy 2019年第2期3卷 105-113页

作者： Shigeki Iida Ko Sakata director The Institute of Applied Energy Executive Research Fellow The Institute of Applied Energy

The successful development of hydrogen-energy technologies has several advantages and ***-energy development could prevent global warming as well as ensure energy security for countries without adequate energy *** successful development of hydrogen would provide energy for transportation and electric *** is a unique energy carrier,as it can be produced from various energy sources such as wind,fossil fuels and biomass and,when it is combusted,it emits no CO_(2)*** other advantage is the wide distribution of resources globally that can be used to produce *** Japan,the Ministry of Economy,Trade and Industry(METI)published a‘Strategic Roadmap for Hydrogen and Fuel Cells’in 2014,with a revised update published in March *** goal of the roadmap is to achieve a hydrogen *** roadmap aims to resolve technical problems and secure economic *** roadmap has been organized into the following three phases:Phase 1-Installation of fuel cells;Phase 2-Hydrogen power plant/mass supply chain;Phase 3-CO_(2)-free *** paper reports on the current status of fuel cells and fuel-cell vehicles in Japan and gives a description and status of the R&D programmes along with the results of global energy model study towards 2050.

关键词： hydrogen and fuel cell energy system and policy energy and environment energy storage

Numerical Modelling of Waves and Surge from Cyclone Mekunu (May 2018) in the Arabian Sea

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Journal of Atmospheric Science Research 2019年第4期2卷 12-20页

作者： M.A.Sarker technical director Royal HaskoningDHVRightwell HouseBrettonPeterborough PE38DWUnited Kingdom

Cyclone Mekunu developed in the Arabian Sea on 22 May 2018 and made landfall near the Port of Salalah(Oman)on 25 *** spread damages to properties and coastal facilities and human casualties were reported in Yemen and *** information on numerical modelling of waves and surge is publicly available on this ***,numerical modelling of Cyclone Mekunu was carried out in the present study to derive waves and storm *** MIKE21 Spectral Wave Model and the Flow Model were used in coupled mode to simulate the waves and surge from the *** results of waves and surge are presented in this paper for illustration *** methodology of the present study can be used to simulate any cyclone around the world.

关键词： Numerical modelling Natural hazards Cyclones Extreme waves Storm surge Port development Arabian Sea Cyclone Mekunu

TOWARDS A FOURTH ECOLOGY: Social and Environmental Sustainability with Architecture and Urban Design

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Journal of Green Building 2010年第4期5卷 176-197页

作者： Joo Hwa Bay University of Western Australia DirectorEco Design Consultant

The architect has always been interested in the social and cultural dimensions while creating architecture for people to last,with the help of building science and *** could solve some problems,but is yet to solve many of the problems of urbanization in human *** many of the problems can only be solved with careful understanding of human behavior,social intercourse,and economics in relation to the urban environments and organizations,and the natural environment *** seemed to be a divide between the way an engineer and an architect think and practice in making a building and a piece of architecture,where the former is highly mathematical,and the latter deals with cultural poetics and a whole range of social and technical issues of which the physics of the environment is but one dimension(Bay and Ong 2006).It may appear natural in this age of environmental crisis and rapid urban development in many cities that the current Ecologically Sustainable Design(ESD)system,which is mainly based on science of the physical world,would be readily accepted by the architect in practice and *** of the current ESD guidelines can contribute to the avoidance of a further decay of the earth,thus preventing droughts and floods,etc.,and hope to maintain the status quo of the environment for all the“business as usual”social-economic *** more world leaders of the developed world agreeing in principle on the need to address climate change,perhaps a lot more will be done based on the engineering models for ecologically friendly planning,commerce,industry,and *** could be a cognitive bias3 of overconfidence and systemic error that the predominantly engineering focus to keep climate change at bay will solve the problem of sustainability in various parts of the *** current limited concept of“ecological”or the“green”design does contribute to sustainability,but is quite limited and not the whole picture of susta

关键词： Ecology sustainability architecture Modern Architecture functionalism ecologically sustainable design rating tools social and environmental community social capital socio-climatic bioclimatic human behavior diversity human potential