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A review of low-carbon technologies and projects for the global cement industry

Journal of Environmental Sciences 2024年第2期136卷 682-697页

作者： Yangyang Guo Lei Luo Tingting Liu Liwei Hao Yinming Li Pengfei Liu Tingyu Zhu CAS Key Laboratory of Green Process and Engineering Institute of Process EngineeringInnovation Academy for Green ManufactureChinese Academy of SciencesBeijing 100190China Center for Excellence in Regional Atmospheric Environment Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China State Key Laboratory of Solid Waste Reuse for Building Materials Beijing Building Materials Academy of Sciences ResearchBeijing 100041China Ganjiang Innovation Academy Chinese Academy of SciencesGanzhou 341000China

Carbon dioxide(CO_(2))emissions from the cement industry account for 26%of the total industrial emissions,and the need to develop low-carbon techniques within the cement industry is extremely urgent.Low-carbon projects and technologies for the cement industry in different regions and countries have been thoroughly reviewed in this manuscript,and the low-carbon development concept for each county has been analyzed.For developing countries such as China and India,energy saving and efficiency enhancement are currently the key points,while for developed countries and regions such as Europe,more efforts have been focused on carbon capture,utilization,and storage(CCUS).Global CCUS projects have been previously conducted,and the majority of CCUS projects are currently performed in Europe where major projects such as the CEMCAP,CLEANKER,and IEILAC projects represent the latest research progress in cement production technologies and low-carbon technologies for the global cement industry.The development of low-carbon cement technologies has changed from focusing on the end point to instead focusing on the source and process through the exploration of hydrogen and solar energies,and more disruptive and original technologies are expected to be developed,particularly in the cement industry in China.

关键词： Cement industry CO_(2)emissions Low carbon development projects Carbon capture utilization and storage

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Risk measurement of international oil and gas projects based on the Value at Risk method

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Petroleum Science 2019年第1期16卷 199-216页

作者： Cheng Cheng Zhen Wang Ming-Ming Liu Xiao-Hang Ren School of Management Science and Engineering Shanxi University of Finance and Economics Academy of Chinese Energy Strategy China University of Petroleum-Beijing School of Mathematical Sciences University of Southampton

International oil and gas projects feature high capital-intensity, high risks and contract diversity. Therefore, in order to help decision makers make more reasonable decisions under uncertainty, it is necessary to measure the risks of international oil and gas projects. For this purpose, this paper constructs a probabilistic model that is based on the traditional economic evaluation model, and introduces value at risk(VaR) which is a valuable risk measure tool in finance, and applies Va R to measure the risks of royalty contracts, production share contracts and service contracts of an international oil and gas project. Besides, this paper compares the influences of different risk factors on the net present value(NPV) of the project by using the simulation results. The results indicate:(1) risks have great impacts on the project's NPV, therefore, if risks are overlooked, the decision may be wrong.(2) A simulation method is applied to simulate the stochastic distribution of risk factors in the probabilistic model. Therefore, the probability is related to the project's NPV, overcoming the inherent limitation of the traditional economic evaluation method.(3) VaR is a straightforward risk measure tool, and can be applied to evaluate the risks of international oil and gas projects. It is helpful for decision making.

关键词： Risk measurement Value at risk International oil and gas projects Fiscal terms - Probabilistic model

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Instructors'perspectives on the pedagogy of architectural graduation projects:A qualitative study

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Frontiers of Architectural Research 2019年第3期8卷 415-427页

作者： Mohammed Ghonim Nehad Eweda Department of Architectural Engineering Faculty of EngineeringCairo UniversityCairoEgypt

In architectural education,graduation projects represent the transition from academia to the profession,and they are the courses that encourage architecture students to demonstrate the knowledge acquired and the skills developed throughout the educational program.This study aims to explore the instructors’perspectives on improving the pedagogy of architectural graduation projects.To achieve this aim,this study has adopted a qualitative method,applied analytical and deductive methodologies,and conducted a survey among 44 academic architects from architectural schools worldwide.This paper is structured into three sections.The first section provides an overview of the topic and its current related issues.The second section introduces the survey,its methods,tools,and procedures,and the participants’profiles.The third section presents the qualitative survey findings and their discussion.The conclusions of this study confirm the results of some previous studies.Some conclusions contradict common practices related to graduation projects,but the original approaches have been provided.The importance of this study inherits the relevance of adopting these courses;that is,for educators and employers to assess the extent to which graduates have acquired the competence necessary to practice architecture.

关键词： Architectural education Design education Graduation projects Enrollment criteria Teaching techniques Evaluation methods

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New projects[2022.1—2023.7]

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造纸信息 2023年第9期 101-104页

On January 2^(nd),2022,the PM2 paper machine of Guanyun Limin Renewable Resource Technology Development Co.,Ltd.was successfully put into operation,with a width of 5,200 mm and a design speed of 700 m/min.The annual p... 详细信息

关键词： boxes capacity projects

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Differentiation degree combination weighting method for investment decision-making risk assessment in power grid construction projects

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Global Energy Interconnection 2019年第5期2卷 466-478页

作者： Yuan Chang Chenmiao Liu Minghua Liu Wenxia Liu Zongqi Liu Heng Zhang Yan Zheng North China Electric Power University Changping DistrictBeijing 102206P.R.China State Grid Economics and Technology Research Institute Changping DistrictBeijing 102209P.R.China Scan for more details

Power grid construction projects are distinguished by their wide variety,high investment,long payback period,and close relation to national development and human welfare.To improve the investment accuracy in such projects and effectively prevent investment risks,this paper proposes an investment optimization decision-making method for multiple power grid construction projects under a certain investment scale.Firstly,an in-depth analysis of the characteristics and development requirements of China’s power grid projects was performed.Thereafter,the time sequence and holographic method was adopted to conduct multi-dimensional,multi-perspective risk assessment of different parts of power grid projects,and a holographic risk assessment index system was developed.Moreover,an investment decision model considering the comprehensive risk based on combination weighting was developed according to the output and input of power grid construction projects.A new combination weighting optimization method that takes into account the investment willingness of enterprises was designed to improve the current weighting evaluation methods.Finally,the validity and applicability of the proposed evaluation method were verified by case examples.

关键词： Power grid projects Risk assessment Time sequence Index system Combination weighting

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Analysis of Causes of Delay in Middle and High Income Self-Build Housing projects (SBHPs) in Wa, Ghana

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Journal of Building Construction and Planning Research 2015年第4期3卷 171-179页

作者： Samuel Owusu Afram Anthony Bangdome-Dery Genevieve Ekua Eghan Titus Ebenezer Kwofie Department of Architecture College of Architecture and Planning Kwame Nkrumah University of Science and Technology (KNUST) Kumasi Ghana Building Technology & Estate Management Department Wa Polytechnic Wa Ghana

Self-build housing projects (SBHPs) among middle and high income developers are faced with many challenges that cause delay in the delivery time of the house(s). The focus of this paper is to analyse the factors that cause delay in SBHPs in order to identify the critical delay factors. Review of literature and expert input revealed 20 variables which were used in a structured questionnaire for data collection from owners, consultants and builders in Wa Municipality. Reliability test, t-test analysis and mean ranking were used in the data analysis. The results revealed that “Delay in obtaining permit from Local Authorities” was the first delay factor followed by “Poor site management and supervision”. The delay factor ranked least was “Inadequate cost estimation and related details” from consultants. The paper recommends that Government agencies that regulate physical development should intensify public education, particularly on responsibilities and obligations, especially among self-builders. The paper recommends further study into labour-related issues as well as communication and information management among participants and its impact on self-build project success.

关键词： Delays Self-Build Housing projects Ghana

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Identification and Calculation Method of the Financial Benefits of IT projects for Better Financial Evaluation

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Intelligent Information Management 2010年第9期2卷 552-558页

作者： Jingchun Feng Fujie Zhang Lei Li 不详

To financially evaluate an IT projects is to assess its financial feasibility, while the financial benefits are the core parameters of financial evaluation of IT projects. Therefore, correctly identifying the financial benefits of IT projects is the precondition to ensure the validity of the financial evaluation. Essentially, IT projects can be divided into productive IT projects and supportive IT projects. The paper analyzes the importance of identifying the financial benefits and introduces the meaning, characteristics and classification of financial benefits of IT projects. On this basis, the paper identifies the financial benefits of both productive IT projects and supportive IT projects and emphasizes the formation and specific calculation method of the two types of IT projects. For productive IT projects and supportive IT projects, the calculation of financial benefits should employ different methods.

关键词： Productive IT projects Supportive IT projects Financial Evaluation Financial Benefits Benefit Identification

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Current Situations of Competitive Scientific Research projects for Agri-scientific Research Institutions: A Case Study of Tropical Crops Genetic Resources Institute of Chinese Academy of Tropical Agricultural Sciences

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Asian Agricultural Research 2015年第10期7卷 77-82页

作者： Haiyan LUO Qingqun YAO Lizhen CHEN Yu ZHENG Tropical Crops Genetic Resources Institute of Chinese Academy of Tropical Agricultural Sciences

This paper collected and arranged competitive scientific research projects undertaken by Tropical Crops Genetic Resources Institute of Chinese Academy of Tropical Agricultural Sciences in 2003-2014. Through statistical analysis on quantity of projects,funded amount,age of person responsible,professional title of person responsible,academic degree of person responsible,research object,it discussed relevant characteristics and rules. Finally,it came up with pertinent measures and recommendations,in the hope of providing services for decision-making and scientific and technological management.

关键词： Competitive scientific research projects Current s

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A preliminary exploration on citizen science projects based on scientific crowdsourcing perspectives: Conceptualization, pattern design and research opportunities

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Journal of Library Science in China 2018年 58-79页

作者： ZHAO Yuxiang School of Economics&Management Nanjing University of Science&TechnologyNanjing 210094China

The past ten years have witnessed the development of Citizen Science from an emerging concept into a mode of an Internet enabled mass participation and online collaboration.However,due to the diversity of the subjects of citizen science projects,the universality and heterogeneity of the participants,the complexity and dynamics of the implementation process,there are still numerous open issues less addressed in its operation mechanism and management mode.Based on the two dimensions of scientific crowdsourcing type and citizen science development environment,this study asserts that the business model of citizen science projects can be effectively constructed and divided.To drive,manage and maintain the development of citizen science projects with the idea of"institutional view",joining the entity of third-party organization can reconstruct the operation mode of citizen science projects.Based on the Library and Information Science,citizen science projects of digital humanities can be explored in depth,and the follow-up work can be carried out from aspects such as the utilization of special collections,the construction of digital humanities platforms,the management and protection of scientific research data,as well as the user motivation and training.

关键词： Scientific crowdsourcing Citizen science projects Pattern design Digital humanities Library and Information Science

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For the Greater Good?—A Critical Reflection on Assessing Indirect Economic Effects Caused by Large Transport projects

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Open Journal of Civil Engineering 2019年第2期9卷 135-156页

作者： Delphine Patrick Witte Thomas Hartmann Tejo Spit Annelies Zoomers Department of Human Geography and Planning Utrecht University Utrecht The Netherlands Faculty of Environmental Sciences Wageningen University and Research Wageningen The Netherlands

Investing in large transport projects affects the (potential) economic development of metropolitan areas. Yet, very little critical research has been performed to understand how to assess these effects. The relationship between infrastructure investments and regional economic development is complex and indirect, and many theoretical and methodological difficulties remain. On the one hand, the assumption that investing in infrastructure is important to sustain economic growth is sometimes doubted. On the other hand, it is argued that investments in infrastructure enhance the accessibility of urban regions and that in the slipstream of such investments, social problems in urban regions can be tackled as well. Despite these contrasting views, there is at least a consensus that transport infrastructure development depends on economic development and vice versa. Yet, in many cases, the method of assessing economic impacts highly affects the results. Therefore, this paper focuses on a critical reflection of methods for estimating economic effects of infrastructure investments. A critical evaluation is made based on Indonesian and Japanese cases. After conducting in-depth desk research on both cases, we found that the broader effects on affected group of people tend to be overlooked due to the problems of time and space dimensions, the chain reaction of effects, and inappropriate data practices. The assessment on the appraisal processes tends to overlook the broader economic implication due to narrow focus and the concept of efficiency of economic theory.

关键词： Large Infrastructure projects High-Speed Railways Economic Effects Transport Investment Economic Assessment

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