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ITMA ASIA+CITME show owners extend cooperation to launch combined exhibition in Singapore
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《China Textile》 2023年第4期14-15,共2页
8 June 2023,Milan–The show owners of ITMA ASIA+CITME have extended their collaboration to organise the combined textile machinery exhibition in a second Asian location.The combined exhibition has been held biennially... 8 June 2023,Milan–The show owners of ITMA ASIA+CITME have extended their collaboration to organise the combined textile machinery exhibition in a second Asian location.The combined exhibition has been held biennially in Shanghai since 2008. 展开更多
关键词 EXHIBITION owner SINGAPORE
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South Carolina forestland owners’ willingness to accept compensations for carbon sequestration 被引量:1
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作者 Mustapha Alhassan Marzieh Motallebi Bo Song 《Forest Ecosystems》 SCIE CSCD 2019年第2期119-131,共13页
Background: Carbon sequestration through recommended forest management practices is an ecosystem service that helps mitigate climate change and its impacts while generating carbon credits for forestland owners to sell... Background: Carbon sequestration through recommended forest management practices is an ecosystem service that helps mitigate climate change and its impacts while generating carbon credits for forestland owners to sell in cap-and-trade programs. The California’s cap-and-trade program (California’s carbon market hereafter) allows forestland owners from any part of the contiguous United States to supply carbon credits to compliance entities. In this study, we estimate South Carolina (SC) private forestland owners’willingness to accept compensations to participate in the California’s carbon market using a contingent valuation method. Results: We estimate forestland owners’mean willingness to accept as$67 per acre per year. Our results reveal higher probability of participation of forestland owners with interests in preserving forest ecosystems than those who do not. Additionally, forestland owners who trust in information about climate change from scientists or government are willing to participate more than those who do not. Conclusions: Various factors hinder landowners’ability to participate in carbon markets. Forestland owners in SC consider legislative uncertainty and long-time commitment as the main barriers to participation in California’s carbon market. From this research, average forestland tenure in SC is 27 years, which is far less than the 100-year time commitment of the California’s carbon market. Of those who agreed to participate, choosing between adopting and not adopting any of the three main forest management practices in the California’s carbon market:28% are likely to adopt improved forest management (IFM) practices, 24% are likely to adopt reforestation due to understocked forestlands, and 14% are likely to adopt avoided conversion. In another development, the concept of aggregation has dominated discussions in the California’s carbon market of late. It is an advocacy to include small-scale forestlands in the California’s carbon market. To aggregate, different forestland owners will combine their forestlands to participate. We find that 79% of SC forestland owners are willing to aggregate to participate. However, this research is unable to determine how much total forestland is available in SC for carbon market. We recommend future research in the State on forestland owners’participation in carbon market should consider evaluating forestland availability. 展开更多
关键词 Forestland ownerS CARBON MARKETS WILLINGNESS to accept
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Family Forest Owners’ Motivation to Control Understory Vegetation: Implications for Consulting Forestry 被引量:1
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作者 Alex C. Londeau Thomas J. Straka 《Open Journal of Forestry》 2013年第4期99-103,共5页
Forest vegetation management has evolved as a recognized component of intensive forest management practice. It involves the management of competing vegetation necessary to obtain the high yields expected in modern for... Forest vegetation management has evolved as a recognized component of intensive forest management practice. It involves the management of competing vegetation necessary to obtain the high yields expected in modern forest plantations via control of interfering plants that influence regeneration outcome, impact timber stand development, and limit native plant and wildlife diversity. It includes cultural control, fire control, mechanical control, biological control, and chemical control. The public perception of forest vegetation management, especially chemical control, is sometimes negative due to health and environmental concerns. It is an important tool in the forest management alternatives available to consulting foresters managing family forest lands (the vast majority of private forest land in the United States). We report on a study that addresses the motivations of family forest owners that implement forest vegetation management practices and the motivation of those who chose not to implement after forester recommendations to do so. For those who do implement forest vegetation management, improvement of wildlife habitat and increased timber growth was the main motivation. For those who did not, cost was the main concern. Size of forest holding plays a major role in determining who will practice intensive forestry. 展开更多
关键词 FOREST Vegetation Management Chemical CONTROL FAMILY FOREST ownerS CONSULTING FORESTRY
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Legislation,challenges and solutions for the"Dream of the Island Owner"--Review of the application and approval measures on the development and utilization of uninhabited islands in Hainan Province 被引量:1
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作者 DENG Yuncheng 《Marine Science Bulletin》 CAS 2020年第1期73-89,共17页
China's legislation relating to islands categorizes the latter into inhabited and uninhabited ones.Between the two different types,only uninhabited islands can be acquired by those who aspire to be private island ... China's legislation relating to islands categorizes the latter into inhabited and uninhabited ones.Between the two different types,only uninhabited islands can be acquired by those who aspire to be private island owners.In an effort to promote the development and utilization of uninhabited islands in China,a succession of laws and regulations have been formulated,including the Law of the People's Republic of China on the Protection of Offshore Islands,and the Application and Approval Measures on the Development and Utilization of Uninhabited Islands,among others.As the only tropical province in China,Hainan province boasts a large number of uninhabited islands,many of which are desired by prospective island owners.In order to promote the development of uninhabited islands,the Application and Approval Measures on the Development and Utilization of Uninhabited Islands in Hainan Province had been promulgated.Based on a detailed introduction on the main contents of the Measures,it is found that the Measures has set an innovative example for its kind in terms of the real estate publicity system,the construction permit and acceptance systems,solutions to using the islands before the issue of Island Protection Law,and verification systems.Nevertheless,the actual implementation of the Measures still brings a host of challenges with it.These relate to aspects of the Measures such as supply regulation premised on regulatory equilibrium,spatial planning with"Multiple-plan Coordination",and coordination between regulations on sea areas and islands.This paper proposes to maximize efforts to refine and coordinate general planning,to innovate systems and procedures regarding the use of islands and to promote the development and utilization of uninhabited islands through protective development in line with international standards. 展开更多
关键词 island owners uninhabited islands legal system Hainan Province
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Serologic Detection of <i>Toxoplasma gondii</i>in Cat Owners Residing at Dhaka Metropolitan Area of Bangladesh
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作者 Jerin-E- Gulshan Niladri Paul +1 位作者 Atiqur Rahman Taibur Rahman 《Advances in Microbiology》 2021年第5期257-265,共9页
<i>Toxoplasma gondii</i> is a zoonotic protozoan that can infect any warm-blooded mammal. <i>T. gondii</i> infects about one-third of the human population on the planet. Infection with the para... <i>Toxoplasma gondii</i> is a zoonotic protozoan that can infect any warm-blooded mammal. <i>T. gondii</i> infects about one-third of the human population on the planet. Infection with the parasite in human causes toxoplasmosis that may pose a high risk in immunocompromised individuals under certain clinical conditions. Cats are the ultimate hosts of <i>T. gondii</i> where oocysts are formed through mating of male and female gametes. Infected cats can expel <i>T. gondii</i> oocysts in their feces, and thereby capable of pass on a disease to humans and other animals through consumption of foods, vegetables and water that are polluted with cat feces. The study was conducted to detect the presence of anti-<i>T. gondii</i> IgM and IgG antibodies in the blood of individuals with or without cat contact to determine if there is any relationship between cat contacts and <i>T. gondii</i> infection in humans. To address this, we enrolled subjects who contacted with the cat as target group and individuals with no cat contact as control group. Following register of different demographic data (including age, sex, education, foods habit, income status, etc.), whole blood from each enrolled subject of both the target group and control group was collected for serum preparation. <i>T. gondii</i> infected subjects were detected by Toxo Rapid test kit through identifying anti-<i>T. gondii</i> IgM and IgG antibodies in their serum. We found that only three out of twenty subjects who were in contact with cat showed positive IgG response while IgM antibody response was absent for all subjects. When compared with the data from control group, we did not find any significant association (p = 0.33) of cat contact with the transmission <i>of T. gondii</i> into human. However, with this small number of study subjects, we cannot conclusively say that there is no impact of cat contact on the transmission of <i>T. gondii</i> into human. Whether any association exists or not can be ascertained with a large number of subjects from different areas of Bangladesh in a future study in the population. 展开更多
关键词 Toxoplasma gondii Cat owner SEROPOSITIVITY Transmission
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BIM-Enabled Estimating through Technology Ontology for Owners and Contractors
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作者 Marcel Maghiar Lauren Livingston Avi Wiezel 《Journal of Civil Engineering and Architecture》 2014年第12期1495-1505,共11页
There are progressive architects, engineers, contractors and owners that adopt some of the newest technologies for financial benefits. The moving force to integrate BIM (building information modeling) tools may come... There are progressive architects, engineers, contractors and owners that adopt some of the newest technologies for financial benefits. The moving force to integrate BIM (building information modeling) tools may come from owners demanding a BIM deliverable to approve the work on these projects. Ifa contractor can produce this deliverable, then obtaining the project could be done in a more convincing way. Contractors are confronted with problems in selecting proper construction methods and applying their knowledge about specific and well-defined technologies to a project. Their decision-making process and better project outcomes can be improved through a database-oriented library of construction methods and therefore, a consistent methodology to classify construction methods is needed. This goal can be achieved by introducing rigorous construction method descriptors. The technology solution and the trending need of owners to pay software companies to develop software that really works for them and contractors are empirically proved in this paper through a technology ontology and BIM-enabled estimating procedure. An exploratory case study is presented. This way, owners can efficiently demand deliverables that can be utilized by them downstream, allowing contractors and subcontracting trades to work efficiently and to assure the daily flow of operations. 展开更多
关键词 owner CONTRACTOR B1M ONTOLOGY ESTIMATING construction technology.
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Private Forest Owners Play Key Role in European Forest Derived Fuel Utilization
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作者 Jyrki Raitila Martti Kuusinen +1 位作者 Robin Ridley Matti Virkkunen 《Journal of Energy and Power Engineering》 2014年第9期1575-1582,共8页
The AFO (activating private forest owners to increase forest fuel supply) project was set up to discover the best tools for activating an important fraction of the 12 million PFOs (private forest owners) in Europe... The AFO (activating private forest owners to increase forest fuel supply) project was set up to discover the best tools for activating an important fraction of the 12 million PFOs (private forest owners) in Europe to supply wood fuel, especially to small and medium-sized heating plants. It aimed to increase the utilization of Europe's vast forest fuel reserves. This was expected to benefit both the economy of the forest owners and rural areas and increase the use of renewable energy sources. The project was carried out between 2009 and 2012. The project operated in selected target regions that have a high proportion of private forest ownership (France, Slovenia, Latvia and the UK). It started by analyzing the potential wood fuel supply and use in relation to current regional markets. After assessing through inquiries the potential wood fuel supply and demand and the parties involved, the next step was to initiate and support the formation of wood fuel supply clusters and organize supply chains. This was followed by the dissemination of best practice examples from Austria and Finland--countries with the most expertise and long traditions of forest fuel production. In the last phase of the project, results and approved activation methods were disseminated to all 27 EU (European Union) countries. 展开更多
关键词 Private forest owners wood fuel supply cluster BIOENERGY activate.
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A-Kano模型下全过程工程咨询业主需求实证研究 被引量:1
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作者 丁继勇 师婷婷 +2 位作者 张茅 朱俊成 李胜喆 《水力发电学报》 CSCD 北大核心 2024年第6期23-32,共10页
我国全过程工程咨询实践正处于多种模式并存、咨询内容差异较大的探索性阶段。以业主需求为导向,合理确定咨询服务内容,提升全过程工程咨询企业服务能力,是推进全过程工程咨询健康发展的关键。通过梳理相关文献,识别出12种全过程工程咨... 我国全过程工程咨询实践正处于多种模式并存、咨询内容差异较大的探索性阶段。以业主需求为导向,合理确定咨询服务内容,提升全过程工程咨询企业服务能力,是推进全过程工程咨询健康发展的关键。通过梳理相关文献,识别出12种全过程工程咨询业主需求,进而借助A-Kano模型开展正、负向满意度与重要度问卷调查,并计算出各类需求的优先级。实证分析结果表明:工程监理和造价咨询属于基本型需求;项目管理、设计及勘察属于期望型需求;招标代理、前期策划和BIM咨询为兴奋型需求;后期运营、建筑节能与绿色建筑咨询、工程检测服务以及工程保险咨询为无差异需求。基于上述结果为工程咨询企业提出转型建议,使其更好地满足业主集成化、个性化的咨询需求。 展开更多
关键词 全过程工程咨询 业主需求 A-Kano模型 优先级
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数字平台生态系统的动态治理机制研究——基于平台所有者与互补者交互影响的视角 被引量:1
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作者 焦豪 马高雅 +1 位作者 王林栋 厉艳 《西安交通大学学报(社会科学版)》 北大核心 2024年第1期87-99,共13页
有效治理是数字平台生态系统可持续发展的关键,治理机制已经成为当前数字平台生态系统研究中备受关注的议题。已有研究大多从静态视角审视平台治理机制,而没有采用动态视角对平台演化发展过程中治理机制的变化展开详细的分析。将数字平... 有效治理是数字平台生态系统可持续发展的关键,治理机制已经成为当前数字平台生态系统研究中备受关注的议题。已有研究大多从静态视角审视平台治理机制,而没有采用动态视角对平台演化发展过程中治理机制的变化展开详细的分析。将数字平台生态系统的演化发展总结为涌现阶段、震荡阶段、规范阶段、更新阶段,基于平台所有者与互补者交互影响视角分析不同阶段的重要特征和关键挑战,提出基于开放、控制、制度化、变革的治理模式。涌现阶段需采取解耦策略、开放访问权限、资源信息提供、共生推广战略、建立互动机制等措施应对选择关键互补者合作和鼓励吸引互补者加入等挑战;震荡阶段需采取访问权限设置与反馈系统、纠纷解决机制、行为控制、外部关系控制、规范交易过程等措施应对避免互补者竞争加剧和筛选锁定互补者等挑战;规范阶段需采取分配协商程序、限制所有者权力、授予自主权、确保程序公正等措施应对明确各自战略定位、确立价值分配机制等挑战;更新阶段需采取提升平台质量、关注互补者反应、关注前沿数字技术、协作组织设计、促进共同成长等措施应对建立新的价值主张和实施平台变革等挑战。 展开更多
关键词 平台治理 数字平台生态系统 动态治理机制 平台所有者 平台互补者 平台用户
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“链主”企业提升产业链现代化水平的功能作用与实现路径
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作者 霍春辉 何地 庞铭 《科学管理研究》 北大核心 2024年第2期103-109,共7页
产业链现代化是全面建成社会主义现代化强国的重要组成部分。“链主”企业是引领产业链发展的“牛鼻子”,对提升产业链现代化水平具有独特价值。为此,研究基于全球产业链重构背景,分析我国产业链现代化发展面临的现实挑战。进一步提出... 产业链现代化是全面建成社会主义现代化强国的重要组成部分。“链主”企业是引领产业链发展的“牛鼻子”,对提升产业链现代化水平具有独特价值。为此,研究基于全球产业链重构背景,分析我国产业链现代化发展面临的现实挑战。进一步提出履行国家使命是驱动“链主”企业提升产业链现代化的源动力,并基于“架构者”角色理论,深入阐述了“链主”企业的主要功能。在此基础上,从加大战略性新兴产业布局、构建产业生态系统、打造原创技术“策源地”、加快数智化绿色化转型、厚植企业发展沃土、加强高水平开放合作等方面入手,探讨“链主”企业推动产业链现代化发展的实现路径。 展开更多
关键词 “链主”企业 产业链现代化 使命驱动 “架构者”角色
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论被代理人直接取得买卖物的所有权
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作者 崔建远 《现代法学》 北大核心 2024年第2期20-39,共20页
在显名代理关系中,买卖合同系被代理人和出卖人的合意,被代理人不但承受买卖合同项下的债权债务,而且直接取得买卖物的所有权,代理人对买卖物为占有辅助或媒介占有关系。无论买卖物为动产抑或不动产,这一结论都不改变。隐名代理动产买... 在显名代理关系中,买卖合同系被代理人和出卖人的合意,被代理人不但承受买卖合同项下的债权债务,而且直接取得买卖物的所有权,代理人对买卖物为占有辅助或媒介占有关系。无论买卖物为动产抑或不动产,这一结论都不改变。隐名代理动产买卖在适用《民法典》第925条时,其法律效果与显名代理动产买卖相同,即由借名人直接取得买卖物的所有权;若适用《民法典》第926条的规定,当出名人披露、借名人行使介入权且出卖人选择借名人承受动产买卖合同项下的法律效果时,则借名人直接取得买卖物的所有权。对于隐名代理不动产买卖,有权处分说认为出名人取得不动产所有权,无权处分说则主张借名人直接取得不动产所有权,其路径有三:第一,把不动产物权登记在出名人名下的现象视作登记错误,在出名人和借名人的内部关系中,将不动产物权归属于借名人;第二,把为借名人的利益承受房屋登记的出名人看成“借名人方面的人”,即“取得媒介人”,出卖人向其办理不动产转移登记等于向借名人转移登记;第三,区分内部与外部关系,在外部关系中,出名人依不动产物权登记成为不动产物权人,而在内部关系中,借名人径直取得不动产物权。由于借名购房处于代理关系的架构中,故借名购房合同应被视为借名人与出卖人之间的合意,由借名人直接承受相应的权利义务。 展开更多
关键词 显名代理 隐名代理 借名人 出名人 买卖物所有权
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无委托人的不动产信托的信托财产所有权转移登记
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作者 张淳 《云南大学学报(社会科学版)》 2024年第2期111-126,共16页
在我国应当将无委托人的不动产信托的受托人登记为作为其信托财产的不动产的所有权人;现存的关于这种不动产信托仍然以其委托人为前述不动产的登记所有权人的情形需要改变。要致使《中国信托法》能够为我国政府不动产登记机构办理前述... 在我国应当将无委托人的不动产信托的受托人登记为作为其信托财产的不动产的所有权人;现存的关于这种不动产信托仍然以其委托人为前述不动产的登记所有权人的情形需要改变。要致使《中国信托法》能够为我国政府不动产登记机构办理前述登记提供民事实体法依据,需要将下述两项规定中的某一项增补入该法中:一项是以“无委托人的信托的信托财产权转归受托人享有”为其内容的规定,另一项是以“无委托人的信托的信托财产权置于受托人的名义之下”为其内容的规定。有可能在我国确立的只能够适用于这种不动产信托的不动产信托登记制度,应当考虑将与其适用对象相适应的下述两项规定纳入其中:第一项是记载不动产信托预先登记规则的规定,第二项是关于其适用能够将这种不动产信托的受托人置于由法律作为其信托财产的不动产设定的义务的承担者的地位的规定。 展开更多
关键词 不动产 不动产信托 登记所有权人 不动产信托登记 受托人
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多模态融合下宠-主情感交流产品交互设计研究
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作者 姚善良 高松 《设计》 2024年第17期54-58,共5页
针对宠-主交流产品情绪识别方式缺失或单一,宠-主情绪状态难以及时掌握把控,进而造成宠-主情感交流障碍的问题,提出多模态计算框架下的宠-主情感交流产品双向交互设计原则,实现对宠-主情绪精准识别,交互反馈,以促进宠-主情感交流。在现... 针对宠-主交流产品情绪识别方式缺失或单一,宠-主情绪状态难以及时掌握把控,进而造成宠-主情感交流障碍的问题,提出多模态计算框架下的宠-主情感交流产品双向交互设计原则,实现对宠-主情绪精准识别,交互反馈,以促进宠-主情感交流。在现有人类情绪识别的音频分析与计算机视觉跨模态融合基础上,针对猫咪意象需求的模糊性与主人情感需求的多样性,联结宠-主情感与其对应需求,提出多模态视域下宠物情绪识别新方法和宠-主情感交流产品双向交互设计模型。面向宠-主情感交流的多模态情感交互模型,通过情绪识别、需求确定、交互反馈,可以提升宠物产品智能化,准确把握宠-主情绪,促进宠-主沟通的良性循环。 展开更多
关键词 宠-主情感 情感交互 多模态情感识别 模态融合 用户需求 交互设计
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建筑师负责制项目担保 支持责任建筑师管控项目的创新担保工具
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作者 邓晓梅 朝勒蒙 牛伟蕊 《时代建筑》 2024年第2期26-29,共4页
在"高质量发展"和"走出去"背景下,建筑师负责制在中国的试点方兴未艾,但责任建筑师管控项目的若干痛点始终未能得到有效解决.文章结合国际惯例和国内试点经验,创新性地提出了建筑师负责制项目担保模式,明确了建设... 在"高质量发展"和"走出去"背景下,建筑师负责制在中国的试点方兴未艾,但责任建筑师管控项目的若干痛点始终未能得到有效解决.文章结合国际惯例和国内试点经验,创新性地提出了建筑师负责制项目担保模式,明确了建设单位、建筑师团队和其他参建方的角色定位,并对该模式的投保、索赔程序做出设计.通过项目担保模式,责任建筑师在项目中的权威地位和作为准司法官员的独立性有望得到保障,能更有效管控项目风险,履行专业职责.文章最后从建筑师负责制的制度转型、项目合规责任保障,以及业主支付担保替代三个角度,论述了建筑师负责制项目担保强制推行的必要性. 展开更多
关键词 建筑师负责制 项目担保 工程担保 责任建筑师
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四川省部分地区养犬户狂犬病防控知行情况问卷调查 被引量:1
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作者 高露 李盛琼 +8 位作者 尹杰 黄雅琳 杨天俊 刘宇 唐涛 李欢 黄大力 阳爱国 侯巍 《中国动物检疫》 CAS 2024年第3期23-27,共5页
为了解四川省养犬户狂犬病防控知行情况,在青神县、阆中市、广汉市和涪城区4个县(市、区)进行了问卷调查,共调查养犬户250人。结果显示:狂犬病防控基本知识方面,知道狂犬病发作一定会死亡的占97.6%,知道其他温血动物可携带狂犬病病毒的... 为了解四川省养犬户狂犬病防控知行情况,在青神县、阆中市、广汉市和涪城区4个县(市、区)进行了问卷调查,共调查养犬户250人。结果显示:狂犬病防控基本知识方面,知道狂犬病发作一定会死亡的占97.6%,知道其他温血动物可携带狂犬病病毒的占92.8%;伤口处理和疫苗注射方面,犬咬伤暴露后注射了狂犬病疫苗的占85.7%,注射了免疫球蛋白的占48.6%,被调查养犬户中知晓伤口不能包扎和缝合的占81.6%;犬只免疫、管理方面,给犬只注射过狂犬病疫苗的占98.8%,所养犬是栓养的占96.0%,68.4%的养犬户其所在村(社)捕杀过流浪犬。结果表明:养犬户对狂犬病基本知识知晓情况较好,但对狂犬病宿主动物了解不全;养犬户防护意识不到位,对正确的防护方法掌握不全面;犬只免疫和管理登记不够规范,存在免疫漏洞。建议各地加强养犬户狂犬病防控宣传教育,加大狂犬病治疗药品的医保报销力度,疫情高发地区要提高犬只免疫覆盖率,规范犬只管理,有效防控人间和畜间狂犬病。 展开更多
关键词 狂犬病 养犬户 知行情况 问卷调查 四川省
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全民所有自然资源资产所有权委托代理行使机制探讨 被引量:4
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作者 李哲 吴爽 《中国国土资源经济》 2024年第3期43-51,57,共10页
全民所有自然资源资产所有权委托代理机制是自然资源资产所有权的一种行使方式,是落实自然资源资产全民所有的重要举措,也是社会主义公有制的实现方式。目前,对于全民所有自然资源资产所有权委托代理制度,法律并无明确规定,试点地区开... 全民所有自然资源资产所有权委托代理机制是自然资源资产所有权的一种行使方式,是落实自然资源资产全民所有的重要举措,也是社会主义公有制的实现方式。目前,对于全民所有自然资源资产所有权委托代理制度,法律并无明确规定,试点地区开始探索行之有效的委托代理履职模式。文章通过梳理试点地区的实践经验,发现全民所有自然资源资产所有权委托代理面临所有权行使的权责不明确、自然资源资产“家底”不清、委托代理制度不健全等困境。基于此,文章从优化权责分配关系、做好资产清查和统计工作、科学编制自然资源清单、完善委托代理制度等方面提出建议。 展开更多
关键词 全民所有 委托代理 所有者职责
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Co-Owner与犬的租借
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作者 刘俣 《宠物派》 2006年第12期142-143,共2页
Co-Owner Co-Owner也就是共同拥有!我们都知道,国外有很多知名的犬都是这样有两个共同的主人,当犬舍之间有合作关系或其他互补条件时,一只狗是同时被两个或两个以上犬舍所共同拥有!
关键词 CO-owner 出租方 张该 owner 承租方 圈里
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医疗场景下基于属性的可净化可协同数据共享方案
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作者 王政 王经纬 殷新春 《计算机科学》 CSCD 北大核心 2024年第10期416-424,共9页
密文策略属性基加密(Ciphertext Policy Attribute-Based Encryption,CP-ABE)方案能够实现对密文的细粒度访问控制,确保只有经过授权的用户才能访问数据,从而保证数据的安全。然而,随着云计算和物联网技术在医疗行业的广泛应用,传统的CP... 密文策略属性基加密(Ciphertext Policy Attribute-Based Encryption,CP-ABE)方案能够实现对密文的细粒度访问控制,确保只有经过授权的用户才能访问数据,从而保证数据的安全。然而,随着云计算和物联网技术在医疗行业的广泛应用,传统的CP-ABE方案在新型医疗物联网场景下逐渐无法满足数据共享在访问策略表达和密文安全性方面的需求,如多学科会诊、患者隐私数据存储等。为此,文中提出一种基于属性的可净化可协同数据共享方案,通过密文净化机制可以有效应对恶意数据拥有者的威胁。此外,该方案可以在访问结构中指定协助结点,使得具有不同属性的多个用户可以合作进行数据访问。安全分析表明,所提方案在选择明文攻击下具有不可区分安全性;性能分析表明,本文方案与其他方案相比,计算开销更低。 展开更多
关键词 云计算 访问策略 可净化 可协同 恶意数据拥有者
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数字平台互补者经验对迭代创新的影响研究
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作者 傅锋 陈爽英 文艺 《管理学报》 北大核心 2024年第1期86-95,共10页
基于经验学习视角,以中国地区iOS平台上的移动应用程序为研究样本,通过双向固定效应模型,实证探究互补者经验与其产品迭代创新之间的关系,以及平台主进入的情境效应。研究表明,互补者生态经验丰富度对产品的迭代新颖性、迭代敏捷性有促... 基于经验学习视角,以中国地区iOS平台上的移动应用程序为研究样本,通过双向固定效应模型,实证探究互补者经验与其产品迭代创新之间的关系,以及平台主进入的情境效应。研究表明,互补者生态经验丰富度对产品的迭代新颖性、迭代敏捷性有促进作用,产品经验多样化对迭代新颖性和迭代敏捷性有正U形影响。进一步,基于平台治理视角发现,平台主进入在互补者经验和迭代创新之间起着重要的情境作用。具体而言,平台主进入削弱互补者的生态经验丰富度对迭代敏捷性的促进作用,同时也会削弱产品经验多样化对迭代新颖性的正U形作用。 展开更多
关键词 互补者经验 迭代新颖性 迭代敏捷性 平台主进入 数字平台
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基于业主视角的工期延误索赔管理研究——以F水电站工程项目为例
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作者 罗颖芳 邹景谋 +1 位作者 付玉凤 卜炜玮 《建筑经济》 2024年第6期67-72,共6页
从业主视角出发,以F水电站工程项目索赔管理为研究对象,对该项目实施进程中两个工期延误索赔案例的处理过程和结果进行介绍,结合现有研究对比分析F水电站业主面对两索赔事件时实施索赔管理的思路与模式,总结工程项目在索赔应对过程中应... 从业主视角出发,以F水电站工程项目索赔管理为研究对象,对该项目实施进程中两个工期延误索赔案例的处理过程和结果进行介绍,结合现有研究对比分析F水电站业主面对两索赔事件时实施索赔管理的思路与模式,总结工程项目在索赔应对过程中应遵循的管理原则,并提出工期延误索赔管理的启示,以期为业主方工期延误索赔管理提供参考。 展开更多
关键词 工期延误索赔 业主方 水电站工程项目 案例研究
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