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农户杉木经营的固碳能力影响因素及碳供给决策措施 被引量:7
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作者 宁可 沈月琴 +2 位作者 朱臻 黄敏 王成军 《林业科学》 EI CAS CSCD 北大核心 2014年第9期129-137,共9页
基于完整造林周期,在不考虑碳泄露的裸地造林基础上,运用C-D生产函数对杉木固碳的影响因素进行分析,并讨论农户碳供给决策措施。研究表明:在造林期增加一定量的化肥投入,在抚育期增加间伐用工,在全过程中增加额外用工投入与杉木固碳能... 基于完整造林周期,在不考虑碳泄露的裸地造林基础上,运用C-D生产函数对杉木固碳的影响因素进行分析,并讨论农户碳供给决策措施。研究表明:在造林期增加一定量的化肥投入,在抚育期增加间伐用工,在全过程中增加额外用工投入与杉木固碳能力存在正相关。农户家庭特征对杉木固碳能力影响不显著,地块特征和区域差异对杉木的固碳能力有不同程度的影响。同时,建立农户在碳汇收益下的决策最优化模型,农户杉木经营过程中需要考虑劳动力工资、生产资料价格、砍伐期木材价格以及碳价格,为今后农户碳汇经营提供决策工具支持。 展开更多
关键词 杉木 C-D生产函数 固碳能力 森林碳汇 决策方程
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国家科技重大专项知识产权育成管理指标体系构建 被引量:4
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作者 方曦 尤宇 +1 位作者 何华 刘云 《科技管理研究》 CSSCI 北大核心 2022年第2期162-171,共10页
针对我国国家科技重大专项(以下简称"重大专项")知识产权育成管理工作中存在的相对主观、规范性较弱等问题,基于重大专项知识产权育成流程分析,探索构建重大专项知识产权育成管理评价指标体系。首先对重大专项知识产权育成管... 针对我国国家科技重大专项(以下简称"重大专项")知识产权育成管理工作中存在的相对主观、规范性较弱等问题,基于重大专项知识产权育成流程分析,探索构建重大专项知识产权育成管理评价指标体系。首先对重大专项知识产权育成管理概念进行界定;其次综合前人研究,在分析重大专项项目立项、实施、验收及后评估阶段工作任务的基础上,从上述4个维度设计共包含29个指标的评价指标体系,结合MATLAB和SPSS数据分析软件,利用群组决策方程根法和Pearson相关性检验对关键指标进行筛选,得出评价的重点方向。并以某卫星型号项目为例,构建卫星型号重大专项知识产权育成全过程管理评价指标体系,验证所提出评价指标体系构建方法的可行性,为其他重大专项知识产权育成管理评价指标体系的构建提供参考借鉴。 展开更多
关键词 国家科技重大专项 知识产权管理 评价指标 群组决策方程根法 相关性检验
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计及多重影响因素的居民需求响应行为分析 被引量:3
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作者 刘晓峰 陈雪颖 +1 位作者 柏颖 王维 《电力工程技术》 北大核心 2022年第6期116-124,共9页
居民用户需求响应的实施对于实现节能减排具有重要意义。为进一步促进居民需求响应,探究各种因素对居民需求响应参与度的影响程度,文中提出一种计及多重影响因素的居民需求响应行为分析方法。首先,根据居民参与需求响应的主要影响因素,... 居民用户需求响应的实施对于实现节能减排具有重要意义。为进一步促进居民需求响应,探究各种因素对居民需求响应参与度的影响程度,文中提出一种计及多重影响因素的居民需求响应行为分析方法。首先,根据居民参与需求响应的主要影响因素,即社交关系、属性影响以及自身意愿建立多重因素影响模型;其次,利用3层因素间的相互作用和居民决策过程的马尔可夫性质建立居民需求响应的马尔可夫决策方程,用以分析不同阶段居民参与需求响应的行为特性;最后,通过算例量化各因素对居民需求响应行为的影响程度。仿真结果表明,多重因素影响下的居民需求响应参与度低于仅考虑单方面因素下的参与度,且不同因素间的交互影响也会导致用户参与度的变化。 展开更多
关键词 居民需求响应 参与度 居民决策行为 多重影响因素 居民行为特性 马尔可夫决策方程
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Research on a Class of Non-linear Programming Problems
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作者 臧振春 《Chinese Quarterly Journal of Mathematics》 CSCD 2002年第2期81-86,共6页
A detailed study of some simple forms which have a given special structure have been solved, in this paper, we research the extension of this kind of special structure problems.
关键词 state variable decision variable state transference equation optimal solution
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Optimal Transmission Behaviour Policies of Secondary Users in Proactive-Optimization Cognitive Radio Networks 被引量:2
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作者 司鹏搏 于非 +1 位作者 王慧琪 张延华 《China Communications》 SCIE CSCD 2013年第8期1-17,共17页
In Cognitive Radio(CR)networks,there is a common assumption that secondary devices always obey commands and are under full control.However,this assumption may become unrealistic for future CR networks with more intell... In Cognitive Radio(CR)networks,there is a common assumption that secondary devices always obey commands and are under full control.However,this assumption may become unrealistic for future CR networks with more intelligent,sophisticated and autonomous devices.Imperfect spectrum sensing and illegal behaviour of secondary users can result in harmful interference to primary users.In this paper,we propose a novel concept of Proactive-Optimization CR(POCR)networks,in which highly intelligent secondary users always try to proactively consider potentially harmful interference when making their behaviour decision.Furthermore,we propose an optimal transmission behaviour decision scheme for secondary users in POCR networks considering the possible harmful interference and penalties from primary users.Specifically,we formulate the system as a Partially-Observable Markov Decision Process(POMDP)problem.With this formulation,a low-complexity dynamic programming framework is presented to obtain the optimal behaviour policy.Extensive simulation results are presented to illustrate the significant performance improvement of the proposed scheme compared with the existing one that ignores the proactive-optimization of secondary users. 展开更多
关键词 CR proactive-optimization user behaviour POMDP
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Product risk reduction using consensus theory
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作者 Harry Katzan, Jr. 《Chinese Business Review》 2009年第12期36-43,共8页
Product analytics is a blend of computational methods with the express purpose of facilitating the multifaceted process of decision-making based on demographic and consumer preferences. This complex subject is derived... Product analytics is a blend of computational methods with the express purpose of facilitating the multifaceted process of decision-making based on demographic and consumer preferences. This complex subject is derived from consensus theory and includes structured analytics, categories, and the combination of evidence. The methodology is applicable to a wide range of business, economic, social, political, and strategic decisions. The paper describes a product allocation application to demonstrate the conceots. 展开更多
关键词 categorical analysis consensus theory Dempster's rule ANALYTICS Dempster-Shafer theory
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A Comparison of Three Surrogacy Agreement Cases Using AHP
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作者 Cynthia L. Knott Susanne Bruno Ninassi Alyson Eisenhardt 《Chinese Business Review》 2011年第2期152-156,共5页
This paper builds on the previous work of Knott, Ninassi and Eisenhardt's 2009 paper, "Using the Analytic Hierarchy Process (AHP) to Look at the Tradeoffs Among Stakeholders in the Case of Surrogacy, when the Init... This paper builds on the previous work of Knott, Ninassi and Eisenhardt's 2009 paper, "Using the Analytic Hierarchy Process (AHP) to Look at the Tradeoffs Among Stakeholders in the Case of Surrogacy, when the Initial Intention of the Parties Involved Change After the Pregnancy Has Ensued". This paper proposes a new methodology for analyzing cases involving stakeholders in disputed surrogacy arrangement. The methodology utilized is the Analytic Hierarchy Process, which allows users to weigh different criteria based on their own opinions and background. Three case studies involved a surrogacy arrangement among three stakeholders: the biological mother, the biological father and the surrogate mother. The base for the model was that all parties had entered into an agreement, and that after the agreement had been made, a situation changed, such that a decision as to who had parental rights over the fetus became an issue. The criteria used in the decision making process in the three case studies were legal, health and ethical. The criteria differed based upon each stakeholder's point of view. In this paper, the three models were developed using the AI-tP methodology and judgments were gathered for each of the three cases to derive the priorities for the criteria in each model. Each author took the role of one of the three stakeholders. 展开更多
关键词 the analytic hierarchy process SURROGACY legal issues ethical issues health issues decision making model
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Multi-factors decision-making entropy method and its application in engineering management 被引量:2
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作者 Qiu Wanhua 《Engineering Sciences》 EI 2010年第4期74-79,共6页
In order to meet the strict requirements for information in engineering management, the positive interval (0, 1 ] in Shannon information entropy is extended to the real number interval [ - 1, 1 ]. The information the... In order to meet the strict requirements for information in engineering management, the positive interval (0, 1 ] in Shannon information entropy is extended to the real number interval [ - 1, 1 ]. The information theory and the decision theory are combined effectively, and the deficiencies that the traditional Bayes decision-making methods only consider a single factor are made up for. The multi-factors engineering decision-making methods are proposed, and some critical problems are solved in the practical engineering management decision-making process. 展开更多
关键词 engineering management decision analysis complex entropy
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Solid Waste Dumping Site Selection Using GIS and Remote Sensing for Kajiado County, Kenya
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作者 Titus Mugi Ng'ang'a Wachira Peter Muturi +2 位作者 Kimenju John Wangai Wango Tim Joash Ndungu Joseph Matheri 《Journal of Earth Science and Engineering》 2014年第11期693-702,共10页
Solid waste dumping is a hectic problem in urban and developing areas due to shortage of land for the purpose. The main objective of this study was to select potential areas for suitable solid waste dumping for Kajiad... Solid waste dumping is a hectic problem in urban and developing areas due to shortage of land for the purpose. The main objective of this study was to select potential areas for suitable solid waste dumping for Kajiado County, Kenya. Eight input map layers including DEM (digital elevation model), topography, urban settlement, roads, wetlands, rivers, forests and protected areas were prepared and MCDA (Multi Criteria Decision Analysis Methods) were implemented in a GIS (geographic information systems) environment. GIS, RS (remote sensing) and MDCA are powerful tools which can effectively be applied during the planning phase of solid waste management in order to avoid adverse catastrophes in future. The final suitability map was prepared by weighted overlay analyses and leveled as the most suitable, moderate suitable, less suitable and unsuitable areas. The area of each suitability level was calculated using spatial statistics. Polygons representing the most suitable sites were further analyzed in terms of area perimeter ratio in order to investigate the most suitable areas in terms of shape regularity. The leading four polygons considered were marked A, B, C, D respectively in the final map. This study showed that suitable areas for solid waste landfills were limited and scattered in the study area. 展开更多
关键词 Solid waste dumping geographic information system remote sensing multi criteria decision analysis
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A learning method for energy optimization of the plug-in hybrid electric bus 被引量:7
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作者 SUN Yong CHEN Zheng +1 位作者 YAN BingJie YOU SiXiong 《Science China(Technological Sciences)》 SCIE EI CAS CSCD 2015年第7期1242-1249,共8页
The optimal energy management for a plug-in hybrid electric bus(PHEB)running along the fixed city bus route is an important technique to improve the vehicles’fuel economy and reduce the bus emission.Considering the i... The optimal energy management for a plug-in hybrid electric bus(PHEB)running along the fixed city bus route is an important technique to improve the vehicles’fuel economy and reduce the bus emission.Considering the inherently high regularities of the fixed bus routes,the continuous state Markov decision process(MDP)is adopted to describe a cost function as total gas and electric consumption fee.Then a learning algorithm is proposed to construct such a MDP model without knowing the all parameters of the MDP.Next,fitted value iteration algorithm is given to approximate the cost function,and linear regression is used in this fitted value iteration.Simulation results show that this approach is feasible in searching for the control strategy of PHEB.Simultaneously this method has its own advantage comparing with the CDCS mode.Furthermore,a test based on a real PHEB was carried out to verify the applicable of the proposed method. 展开更多
关键词 plug-in hybrid electric (PHEB) control strategy dynamic programming (DP) learning algorithm
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