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“种子生产与经营管理”课内教学“产-理-技”教学模式的研究 被引量:3
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作者 张洪生 《科教文汇》 2015年第31期57-58,共2页
针对"种子生产与经营管理"课程课内教学效果欠佳的问题,提出并出尝试课内教学"产-理-技"教学模式,大幅度调整原有教学内容的讲授顺序及所占课时比例。首先,用30%的课时介绍和剖析产业现状以作为课程引导部分,提升... 针对"种子生产与经营管理"课程课内教学效果欠佳的问题,提出并出尝试课内教学"产-理-技"教学模式,大幅度调整原有教学内容的讲授顺序及所占课时比例。首先,用30%的课时介绍和剖析产业现状以作为课程引导部分,提升学生学习兴趣,培养学生行业忧患意识和社会责任感;以40%课时讲解基础理论知识,作为课程的核心及中枢部分;最后用30%课时讲解实用生产经营技术及策略,增强学生实践意识及能力。实践表明,"产-理-技"教学方案易于为学生所接受,课堂气氛及教学效果明显得以改善。 展开更多
关键词 种子生与经营管 产-理-技 教学模式
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Airtight negative pressure dust-control technology and application of transpersite in the coal conveyer belt system 被引量:2
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作者 马云东 贾惠艳 张大明 《Journal of Coal Science & Engineering(China)》 2008年第4期562-566,共5页
Presented a new coal dust control program that was airtight negative pressure dust-control technology at the transpersite,combining with analysis with the movement of air currents and numerical simulation of gas-solid... Presented a new coal dust control program that was airtight negative pressure dust-control technology at the transpersite,combining with analysis with the movement of air currents and numerical simulation of gas-solid flow at the transpersite,and proved the mechanism of precipitation and proliferation for coal dust-controlt in theory.The technol- ogy has made good economic results at the Heidaigou Clean Plant,not only dust concen- tration control within 10 mg/m^3 to the work site,but also substantial energy savings and cost savings. 展开更多
关键词 coal conveyer belt system transpersite DUST airtight negative pressure dust-control
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Simulation of game analysis based on an agent-based artificial stock market re-examined 被引量:1
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作者 LIU Cheng WU Yi-li YAN Gang-feng 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2006年第4期564-569,共6页
This work re-examined the simulation result of game analysis (Joshi et al., 2000) based on an agent-based model, Santa Fe Institute Artificial Stock Market. Allowing for recent research work on this artificial model, ... This work re-examined the simulation result of game analysis (Joshi et al., 2000) based on an agent-based model, Santa Fe Institute Artificial Stock Market. Allowing for recent research work on this artificial model, this paper’s modified game simulations found that the dividend amplitude parameter is a crucial factor and that the original conclusion still holds in a not long period, but only when the dividend amplitude is large enough. Our explanation of this result is that the dividend amplitude pa- rameter is a measurement of market uncertainty. The greater the uncertainty, the greater the price volatility, and so is the risk of investing in the stock market. The greater the risk, the greater the advantage of including technical rules. 展开更多
关键词 Agent-based model Technical trading Asset prices SIMULATION
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Exploring Crop Yield Benefits of Integrated Water and Nutrient Management Technologies in the Desert Margins of Africa: Experiences from Semi-Arid Zimbabwe
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作者 I. Nyagumbo 《Journal of Agricultural Science and Technology(A)》 2011年第3X期401-414,共14页
The benefits of integrating locally adaptable water and nutrient management technologies were explored in semi-arid Zimbabwe. On-farm maize based experiments were set up on six farmers' fields in Ward 5, Shurugwi. Th... The benefits of integrating locally adaptable water and nutrient management technologies were explored in semi-arid Zimbabwe. On-farm maize based experiments were set up on six farmers' fields in Ward 5, Shurugwi. Three tillage systems namely Post-Emergence Tied Ridging (PETR), Rip & Pot-Holing (RPH) and Conventional Mouldboard Ploughing (CMP) were integrated to three nutrient management regimes, i.e. a control with no fertility amelioration, pit-stored cattle manure band applied at 10 t/ha and the latter with an additional top dressing of ammonium nitrate (34.5% N) at 100 kg/ha. On each site the treatments were set up as a completely randomized split-plot block design replicated 3 times with tillage (water management) as the main treatment and fertility as the sub-treatment. CMP mimicked the farmers' common land preparation practice while PETR and RPH systems represented the improved water harvesting tillage techniques. Results revealed significant nutrient management effects right from the first season giving 3-year means of 1,298, 1,977 and 2,490 kg/ha for the control, manure and manure plus fertilizer treatments respectively. On the other hand, water harvesting tillage effects were insignificant initially (2003/4) but had beneficial effects in subsequent seasons (2004/5 and 2005/6) with 3-year grain yield means of 1,624, 2,032 and 2,108 kg/ha for CMP, PETR and RPH, respectively. Maximum yield benefits from integrating PETR and RPH with manure + AN fertility ameliorants amounted to 218 and 261% respectively, compared to CMP with no fertility amendment. The results therefore showed increased benefits when in-situ water harvesting tillage techniques are integrated with appropriate nutrient ameliorants giving realizable food security benefits to the farmer. 展开更多
关键词 Crop yield in-situ water harvesting nutrient management TILLAGE water.
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Technological Properties of Yeast Produced Surface Active Compounds in Connection with Their Application in Clean-Up Technologies
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作者 Kristina Lhotska Marek Sir +2 位作者 Jiri Mikes Zuzana Honzajkova Miroslav Minarik 《Journal of Agricultural Science and Technology(A)》 2014年第1期49-59,共11页
Biologically produced surfactants (SACs) can mobilize and solubilize non-aqueous phase liquids (NAPL) adsorbed onto soil constituents. The interest in microbial surfactants has increased during recent years due to... Biologically produced surfactants (SACs) can mobilize and solubilize non-aqueous phase liquids (NAPL) adsorbed onto soil constituents. The interest in microbial surfactants has increased during recent years due to their lower toxicity, higher biodegradability, selectivity and specific activity under extreme conditions than synthetic SACs. Main output of the project represents preparation of this yeast biosurfactant intended for washing of matrices contaminated by NAPL. The influence of cultivation media composition on biosurfactant production was studied and basic properties (critical micelle concentration (CMC), minimum surface tension) of isolated biosurfactants were compared with properties of synthetic surfactant with surface tension measurement. The interracial tension of the systems containing aqueous solutions of different concentrations and non-polar substances was measured with petroleum compounds (kerosene Jet A-l), aromatic and aliphatic hydrocarbons (represented by toluene and hexane). The solution of biosurfactant Yarrowia lipolytica (YAR) in the concentration range of 0-500 mg/L reduced interracial tension by 80% in all representative systems with model contaminants; biosurfactant Candida bombicola (CAN) was less efficient. Solubilization properties were proved with toluene and hexachlorocyclohexane (HCH) isomers alpha and gamma, and effective concentration of biosurfactants was determined as 100 mg/L for toluene and HCH. SACs produced by lipophilic yeast with non-toxic and non-pathogenic status (Yarrowia lipolytica, Candida sp., etc.) seem to be very promising. The results obtained will be used for the application of biosurfactants in the clean-up technologies as agents for the mobilization of non-polar contaminants as well as for stimulation of bioremediation processes. 展开更多
关键词 Biological surfactant lipophilic yeast carbon source soil washing.
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Multidisciplinary design optimization for air-condition production system based on multi-agent technique 被引量:2
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作者 杨海东 鄂加强 屈挺 《Journal of Central South University》 SCIE EI CAS 2012年第2期527-536,共10页
In order to guarantee the overall production performance of the multiple departments in an air-condition production industry, multidisciplinary design optimization model for production system is established based on t... In order to guarantee the overall production performance of the multiple departments in an air-condition production industry, multidisciplinary design optimization model for production system is established based on the multi-agent technology. Local operation models for departments of plan, marketing, sales, purchasing, as well as production and warehouse are formulated into individual agents, and their respective local objectives are collectively formulated into a multi-objective optimization problem. Considering the coupling effects among the correlated agents, the optimization process is carried out based on self-adaptive chaos immune optimization algorithm with mutative scale. The numerical results indicate that the proposed multi-agent optimization model truly reflects the actual situations of the air-condition production system. The proposed multi-agent based multidisciplinary design optimization method can help companies enhance their income ratio and profit by about 33% and 36%, respectively, and reduce the total cost by about 1.8%. 展开更多
关键词 multi-agent system production operation multidisciplinary optimization self-adaptive chaos optimization immune optimization algorithm
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Four-Closure: How Amazon, Apple, Facebook & Google Are Driving Business Model Innovation 被引量:1
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作者 Nigel Walton 《Chinese Business Review》 2012年第11期981-988,共8页
This paper explores the rapid growth of four internet-based corporations and critiques the extent to which the Internet has developed from being simply a powerful tool and enabler of industry innovation to achieving s... This paper explores the rapid growth of four internet-based corporations and critiques the extent to which the Internet has developed from being simply a powerful tool and enabler of industry innovation to achieving status as a fully-fledged technology-based business ecosystem. The need to develop new management theories, tools, and techniques to compete with the "Gang of Four" (Amazon, Apple, Google, and Facebook) is also discussed in some depth as well as providing a critique of traditional models/strategic approaches and more recent theories. This is considered to be an important area of research because as a new class of Internet company emerges, incumbent firms in traditional industries will need to know how to prepare for the new challenges that face them. 展开更多
关键词 business ecosystem PLATFORMS CATALYST infomediaries white space blue ocean strategy
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Environmental Strategies for Design of Sustainable Buildings in Technique of Green Eco-Architecture
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作者 Boris Bielek Milan Bielek 《Journal of Civil Engineering and Architecture》 2012年第7期892-898,共7页
Architecture is defined as a symbiosis of function, aesthetics, technology and economics. This paper introduces the concept of development of technology in architecture for a sustainable society. The concept is based ... Architecture is defined as a symbiosis of function, aesthetics, technology and economics. This paper introduces the concept of development of technology in architecture for a sustainable society. The concept is based on a systemic link building-climate-energy. The scientific analysis of this link allows us to define three technical levels of modern architecture. The lowest level is represented by low energy architecture that gives priority to the element of energy. Climate is defined only by physical parameters here. It is characterized by the production of emissions that deplete the Biocapacity of the Earth. Higher level of architecture is represented by green architecture which gives equal priority to both energy and ecology. Climate is defined by physical and chemical parameters here. It is characterized by the tendency of reduction of emissions production and move towards environmentally clean energy, material and water sources. Sustainable architecture represents the target program of development of human settlements in the interaction of society-energy-ecology. It is characterized by the balance of categories nature-man-technology and by minimizing the emissions production to the extent of their coverage by the Earth's ecosystems. This paper introduces design strategy for green building. The basic structure of the strategy defines, and internal structure of the strategy emphasizes, principles and concepts of green buildings. In this strategy, the vital role is played by renewable energy sources as a production technology of the capital provided to man by nature. 展开更多
关键词 Low energy architecture green architecture sustainable architecture green building.
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Current Status and Development Strategies of Chinese Cosmetic Industry
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作者 里筱竹 江滨 +1 位作者 王一涛 史录文 《Journal of Chinese Pharmaceutical Sciences》 CAS 2005年第1期72-74,共3页
Current status and existing problems in the Chinese cosmetic industry areanalyzed from the aspects of industry scale, technology and management level, R&D investment andhuman resources. Strategies to promote the i... Current status and existing problems in the Chinese cosmetic industry areanalyzed from the aspects of industry scale, technology and management level, R&D investment andhuman resources. Strategies to promote the industry are also put forward, such as increasing entrybarrier to optimize industry structure, tightening regulatory controls to improve quality assurance,fostering innovation and actively exploring modes of collaboration, and training more technical andmanaging professionals. 展开更多
关键词 COSMETIC cosmetic industry development strategies
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Break the Ties for NEH Heuristic in Solving the Permutation Flow Shop Problems 被引量:1
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作者 高守玮 LEISTENRainer +1 位作者 戴杨 张卫东 《Journal of Donghua University(English Edition)》 EI CAS 2008年第3期258-262,共5页
This study deals with the Permutation Flow Shop Scheduling Problem (PFSP) based on the maximum completion time (makespan). NEH ( the algorithm of Nawaz, Eascore and Ham) is the concluded most efficient construct... This study deals with the Permutation Flow Shop Scheduling Problem (PFSP) based on the maximum completion time (makespan). NEH ( the algorithm of Nawaz, Eascore and Ham) is the concluded most efficient constructive method in solving this NP-hard problem. The principal features of its strengths are the initial arrangement of jobs and the job insertion phase. In some instances, ties will occur in both the initial permutation and the partial sequences. The problem of ties breaking may have a significant impact on the NEH performance, but evaluate all the ties will be non-polynomial in the worst case. Several kinds of methods are presented in the paper to break the ties in a quick time. Together with the basic one, all 22 methods are tested on the famous Taillard's benchmarks and the most suitable ties breaking policy is recommended. 展开更多
关键词 flow shop constructive heuristic MAKESPAN
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Air cushion furnace technology for heat treatment of high quality aluminum alloy auto body sheet 被引量:2
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作者 Li Yong Wang Zhaodong +4 位作者 Ma Mingtu Wang Guodong Fu Tianliang Li Jiadong Liang Xiong 《Engineering Sciences》 EI 2014年第5期73-80,共8页
The process characteristics of heat treatment of aluminum alloy auto body sheet and the working principle of air cushion furnace were introduced.The process position and irreplaceable role of air cushion furnace in th... The process characteristics of heat treatment of aluminum alloy auto body sheet and the working principle of air cushion furnace were introduced.The process position and irreplaceable role of air cushion furnace in the aluminum alloy auto body sheet production was pointed out after the difficulty and key points in the whole production process of auto body sheet were studied.Then the development process of air cushion furnace line of aluminum alloy sheet was reviewed,summarized and divided to two stages.Based on the research of air cushion furnace,the key technology of it was analyzed,then the key points on process,equipment and control models of air cushion furnace for aluminum alloy auto body sheet in future were put forward.With the rapid development of automotive industry,there will be certainly a new upsurge of research and application of air cushion furnace for heat treatment of aluminum alloy auto body sheet. 展开更多
关键词 aluminum alloy auto body sheet shate products air cushion furnace heat treatment process
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STUDY ON EXTRACTING METHODS OF BURIED GEOLOGICAL INFORMATION IN HUAIBEI COAL FIELD 被引量:1
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作者 王四龙 赵学军 +3 位作者 凌贻棕 刘玉荣 宁书年 侯德文 《Journal of Coal Science & Engineering(China)》 1999年第1期11-15,共5页
It is discussed features and tbe producing mechanism of buried geological information in geological, geophysical and remote sensing data in Huaibei coal field, and studied the methods extracting buried tectonic and ig... It is discussed features and tbe producing mechanism of buried geological information in geological, geophysical and remote sensing data in Huaibei coal field, and studied the methods extracting buried tectonic and igneous rock information from various geologicaI data using digital image processing techoiques. 展开更多
关键词 Huaibei coal field geological data buried geological information digital image processing
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Analysis of the application of Chinese medicine nursing technology in obstetrics
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作者 Hua-Ping Han 《TMR Integrative Nursing》 2018年第4期165-168,共4页
Objective:To analyze the application value of traditional Chinese medicine(TCM)nursing technology in obstetrics.Methods:204 patients with obstetrics were enrolled in the study and entered into the Chinese medicine gro... Objective:To analyze the application value of traditional Chinese medicine(TCM)nursing technology in obstetrics.Methods:204 patients with obstetrics were enrolled in the study and entered into the Chinese medicine group and thereference group according to the random number(n=102).The reference group received routine care,and the Chinesemedicine group received Chinese medicine nursing.The anxiety and depression scores of the two groups of patientsand the patient's nursing satisfaction status were compared.Results:There was no difference in the scores betweenthe pre-treatment groups.The value of the reduction in anxiety and depression scores in the TCM group wassignificantly higher than that in the reference group.The numerical comparison was statistically significant(P<0.05).The comprehensive nursing satisfaction rate of patients in the Chinese medicine group was 99.02%,and the comprehensivenursing satisfaction rate of the reference group was 80.39%.The numerical comparison was statistically significant(P<0.05).Conclusion:The application of TCM nursing technology in obstetrics helps to improve the negativeemotions of patients and improve the overall satisfaction rate of patients.The value of nursing intervention is higher 展开更多
关键词 Traditional Chinese medicine nursing technology OBSTETRICS Anxiety and depression score Nursing satisfactionrate
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Research on coal mine safety production management decision system based on VB
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作者 赵忠玲 冯夕文 +1 位作者 方亨福 袁清和 《Journal of Coal Science & Engineering(China)》 2007年第4期434-438,共5页
Based on safety management appraisal theory, the decision system was divided into 5 function menu module, including system control module, mining coal and the tunneling working surface security evaluation module, the ... Based on safety management appraisal theory, the decision system was divided into 5 function menu module, including system control module, mining coal and the tunneling working surface security evaluation module, the entire ore safety production condition appraisal module, the safety management level appraisal module of main production work area, the withdrawal system module and so on. The system operates through the constitutive procedure, outputs the main operation results by graph and form, and realizes the main function of safety evaluation. 展开更多
关键词 safety production management the appraise of safety production condition the appraise of safety management level decision system
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Effects of Traditional Chinese Medicine Leaching Solutions on Rice Yield
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作者 李婧雯 《Agricultural Science & Technology》 CAS 2013年第12期1775-1778,共4页
[Objective] The aim was to explore the effects of different leaching solu- tions on yield increasing of rice. [Method] Three rice parents were chosen from dif- ferent areas to treat with leaching solutions and rice le... [Objective] The aim was to explore the effects of different leaching solu- tions on yield increasing of rice. [Method] Three rice parents were chosen from dif- ferent areas to treat with leaching solutions and rice leaves were sprayed with leaching solutions in seedling stage and tillering stage, respectively. The test data were recorded. Horizontal and vertical researches were carried out on agronomic traits of rice in different varieties in test or control groups. [Result] The horizontal test showed that hybrid rice parents, submerged with traditional Chinese medicines increased significantly in rice yield and vertical research indicated that rice in control group decreased sharply in yield and in test group improved in both yield and quality, which was also true for following generations. [Conclusion] The test provides references for hybrid rice maintaining rice traits. 展开更多
关键词 Leaching solution of traditional Chinese medicines Seed treatment technology Rice yield increasing
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Fourth Industrial Revolution:Technological Drivers,Impacts and Coping Methods 被引量:6
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作者 LI Guoping HOU Yun WU Aizhi 《Chinese Geographical Science》 SCIE CSCD 2017年第4期626-637,共12页
The world is marching into a new development period when the digital technology,physical technology,and biological technology have achieved an unprecedented development respectively in their own fields,and at the same... The world is marching into a new development period when the digital technology,physical technology,and biological technology have achieved an unprecedented development respectively in their own fields,and at the same time their applications are converging greatly.These are the three major technological drivers for the Fourth Industrial Revolution.This paper discusses the specific technology niches of each kind technological driver behind the Fourth Industrial Revolution,and then evaluates impacts of the Fourth Industrial Revolution on global industrial,economic,and social development.At last this paper proposes possible measures and policies for both firms and governments to cope with the changes brought by the Fourth Industrial Revolution. 展开更多
关键词 Fourth Industrial Revolution technological drivers global impacts firm-level adjustments government policies
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Major historical events affecting the accounting profession: An overview
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作者 LIU Ying Dong Li-wei 《Journal of Modern Accounting and Auditing》 2009年第9期40-46,共7页
The accounting result from science and technology innovation and the development of productivity, with management modes and financial reforms as its opportunity and the operation of international capital, as well as e... The accounting result from science and technology innovation and the development of productivity, with management modes and financial reforms as its opportunity and the operation of international capital, as well as economic integration helping improve it. An invention, a president, the occurrence of an organization, a historical lesson may directly or indirectly change accounting regulations, and even trigger an accounting revolution. We will put a variety of significant impacts on an accounting, so as to get a fundamental understanding of the close relationship between such events and accounting events, including innovation of accounting theory, and accounting practice; we adopted the "table-style" form of papers, with many self-evident and intuitive tables, we compile a series of major historical events reasonably. Only in accordance with evolution of objective environment, can we design proper accounting practice, and thus innovate and develop accounting. 展开更多
关键词 social development accounting method accounting principles international united front
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Reprocessing of Buildings' Demolition Waste and Utilization for the Manufacturing of New Products
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作者 Olga Fino2enoK Ramune Zurauskiene Rimvydas Zurauskas 《Journal of Civil Engineering and Architecture》 2012年第9期1230-1239,共10页
Concrete is multicomponent composite material, consisting of coarse aggregate, fine aggregate, cement and water. Natural aggregates, as well as aggregates obtained after the reprocessing of buildings' demolition wast... Concrete is multicomponent composite material, consisting of coarse aggregate, fine aggregate, cement and water. Natural aggregates, as well as aggregates obtained after the reprocessing of buildings' demolition waste, can be used as coarse and fine aggregates. Characteristics of the hardened concrete depend on the raw materials, used for the preparation of concrete mixture, and their characteristics. The objective of the research is to analyse the sources of demolition waste, to describe the reprocessing technology of concrete waste, to investigate the production of the aggregate from the concrete waste, to analyse the main properties of these aggregates -- particles' density, bulk density, granulometric composition, hollowness and other properties, as well as to compare the obtained results with the requirements applicable to the aggregates based on natural materials. 展开更多
关键词 Demolition waste concrete waste AGGREGATE recycled aggregate density hollowness.
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Commercialization Management of National Commodities for Oil and Gas Industry in Iran
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作者 Maryam Khosravi Saghezchi Ahmad Ramezani Saadat Abadi Ali Bonyadi Naeeni 《Journal of Modern Accounting and Auditing》 2017年第7期320-331,共12页
This article shows a side segment of efforts toward finding ways to successfully commercialize a high tech product in Iran. During last decades, sanctions against importing petrochemical most used and needed utilities... This article shows a side segment of efforts toward finding ways to successfully commercialize a high tech product in Iran. During last decades, sanctions against importing petrochemical most used and needed utilities caused difficulties for Iranian petrochemical production chain. Inconveniences provoked Iranian specialists to achieve technical knowledge toward finding new ways of local producing. Attempting(s) had been encompassed to complete the whole chain of production and consumption inside of the country. Concepts implicate that during recent years, Iranian specialists have taken special steps toward localizing needed catalysts as an example of important commodities. Considerable amount of analyses have been made by Iranian petrochemical community probing the problems and obstacles associated with successful producing and what it really takes for a successful commercialization. Thematic analysis has been implicated as the research method to evaluate concepts represented as interviewees' analyzed declarations. Themes are analyzed toward mapping a successful merging with parties involved along with focusing on national commercializing streamline. Findings show that the idea of executing venture capital agencies as a new sector in the sequence of Iranian governmental and private petrochemical network has been appraised. Also, evaluating network management between parties involved and ways of policy making by the expert individuals are considered as the foremost factors to converse. Benchmarking feels as a necessary aspect as well to consider in the merging process. It has been concluded vital for Iranian companies to assess their own efficiency with accepted international standards, while on the other hand, they can take benchmark as a coming out opportunity when they commercialize in new intact market cooperating with renowned foreign companies. 展开更多
关键词 commercialization management policy making Iranian oil and gas network BENCHMARKING
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The Design of Predictive Model for the Academic Performance of Students at University Based on Machine Learning
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作者 Barnabas Ndlovu Gatsheni Olga Ngala Katambwa 《Journal of Electrical Engineering》 2018年第4期229-237,共9页
Students in South African Universities come from different socio-cultural backgrounds, countries and high schools. This suggests that these students have different experiences which impact on their levels of grasping ... Students in South African Universities come from different socio-cultural backgrounds, countries and high schools. This suggests that these students have different experiences which impact on their levels of grasping information in class as they potentially use different lenses on tuition. The current practice in Universities in contributing to the academic performance of students includes the use of tutors, the use of mobile devices for first year students, use of student assistants and the use of different feedback measures. What is problematic about the current practice is that students are quitting university in high numbers. In this study, knowledge has been drawn from data through the use of machine learning algorithms. Bayesian networks, support vector machines (SVMs) and decision trees algorithms were used individually in this work to construct predictive models for the academic performance of students. The best model was constructed using SVM and it gave a prediction of 72.87% and a prediction cost of 139. The model does predict the performance of students in advance of the year-end examinations outcome. The results suggest that South African Universities must recognize the diversity in student population and thus provide students with better support and equip them with the necessary knowledge that will enable them to tap into their full potential and thus enhance their skills. 展开更多
关键词 Machine learning Bayesian networks support vector machines decision trees and predictive model.
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