共查询到17条相似文献,搜索用时 171 毫秒
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面向EPR制度的多利益主体行为研究 总被引:1,自引:0,他引:1
提出在电子垃圾管理中引入EPR制度,通过确立电子垃圾回收处置的责任主体减少电子产品污染物。针对我国电子产品市场结构进行简化,通过博弈得到政府、电子产品回收市场中合法企业、非合法企业各方的利益,研究各利益主体的行为,提出政府制定何政策能更好地推行EPR制度。 相似文献
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闭环供应链视角下废旧电器电子产品回收再利用的激励机制与对策 总被引:1,自引:1,他引:0
在我国废旧电器电子产品(WEEE)的回收再利用现状分析和文献回顾的基础上,讨论了国内外WEEE的立法及我国生产企业对回收基金的反应,指出我国法律实施效果不佳的根本原因是未能考虑闭环供应链CLSC上除生产商外其他成员企业的利益,实行生产商负主要责任的CLSC责任制是WEEE回收再利用的合理可行策略;讨论了CLSC视角下WEEE回收再利用的结构,得到三种可行的CLSC流程;探讨了WEEE回收再利用的三种激励机制,特别是奖惩机制,并以此为基础分别给出了WEEE回收和再利用的管理对策。 相似文献
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生产者延伸责任制度(Extended Producer Responsibility,下文简称EPR)有助于解决废旧产品引发的环境问题,并提高产品整个生命周期内的环境绩效。目前,我国有关部门正在组织探讨汽车行业EPR的实施模式。本文首先构建了EPR的实施绩效及作用机理的概念模型,并对生产者行为策略、系统实践改进及绩效改进之间的关系进行了假设;以我国汽车行业为例,利用统计分析方法,从实证角度对假设模型进行检验并修正,提出我国EPR的实施绩效及运行机理实证模型;最后提出建议。 相似文献
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针对金矿重金属废水,着重讨论了活性炭吸附法、离子交换树脂法和溶剂萃取法三种回收废水中金的化学技术,分别讨论了三种处理工艺的研究进展、回收原理,并比较分析了三种回收工艺的优缺点. 相似文献
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AP1000和EPR这两种三代堆型的堆芯核设计具有较大差异。AP1000堆芯装载157盒燃料组件,EPR堆芯装载241盒燃料组件。和AP1000相比,EPR堆芯组件数较多,功率大,堆芯等效直径较大。在组件设计上,EPR使用的燃料组件技术较为成熟,AP1000采用的燃料组件增设了中间搅混格架,但应用经验较少。堆芯换料方案都为长周期换料,EPR为高泄漏换料方案,中子泄漏较多,但堆芯功率容易展平。AP1000的长周期换料方案更为灵活,为低泄漏方案,提高了中子利用率,为了展平功率,提出了较多新型设计理念,使燃料组件种类增加,堆芯装载更为复杂。 相似文献
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闭环供应链中回收价格变化的回收渠道选择问题 总被引:10,自引:0,他引:10
研究了闭环供应链中回收渠道选择问题,建立并求解了回收率随回收价格变动的单一制造商和单一零售商的最优利润模型.引入初始投入系数,以区分不同供应链成员建立回收通道的难易程度.通过案例分析,给出了不同情况下回收渠道选择策略. 相似文献
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Irma van der Ploeg Brit Ross Winthereik Roland Bal 《Ethics and Information Technology》2006,8(2):73-83
In this paper we discuss expected and reported effects on care provider-patient relations of the introduction of electronic
patient records (EPRs) in consultation settings by reviewing exemplary studies and literature on the subject from the past
decade. We argue that in order for such assessments to be meaningful, talk of effects of “the” EPR needs to be replaced by
an “unpacking” of EPR systems into their constituent parts and functionalities, the effects of which need to be assessed individually.
Following from this principle, the paper discusses EPR systems ranging from simple data entry and retrieval systems to more
sophisticated multi-user and multifunctional on-line systems. On a second level, our analysis of the literature is informed
by the question which model of ideal patienthood underlies the assessment of effects of EPRs. To this end, we identify three
“models of patienthood” implicit in writing about benefits and drawbacks of EPRs for patients: the autonomy, the consumer,
and the holistic models, and argue that assumptions concerning these models need to be reflected upon more critically to improve
understanding of what exactly EPR use does to the doctor-patient relationship. 相似文献
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Internet of things (IoT) coupled with mobile cloud computing has made a paradigm shift in the service sector. IoT-assisted mobile cloud based e-healthcare services are making giant strides and are likely to change the conventional ways of healthcare service delivery. Though numerous approaches for preventing unauthorized access to information exchanged between a mobile phone and cloud platform do exist, but there is no security mechanism to prevent unauthorized access by the cloud administrators. With an aim to ensure security of client data such as Electronic Patient Records (EPR), we propose a novel high-capacity and reversible data hiding approach for securely embedding EPR within the medical images using Optimal Pixel Repetition (OPR). OPR converts every pixel of the input image to a 2 × 2 block to facilitate reversibility by ensuring all the pixels in a 2 × 2 block to have different values. Since a 2 × 2 block is comprised of 4-pixel elements, which could be arranged in sixteen possible ways; we generate a lookup table corresponding to sixteen possible positions of pixels. EPR hiding in each block is achieved by permuting the pixels of a block according to the four-bit word of secret data, resulting in a histogram invariant stego image. The histogram invariance improves the robustness of the proposed scheme to statistical attacks. A stego image is said to hide embedded data securely, when it provides better imperceptivity for an appreciably high payload. Thus, while using information embedding approach for securing client data on a mobile-cloud platform, high imperceptivity is a desirable feature. Experimental results show that average PSNR obtained is 42 dB for payload 1.25 bpp by our scheme, showing its effectiveness for preventing unauthorized access to client’s sensitive data. 相似文献
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成本管理的基本目标是成本控制,实践证明只有对产品从研发到消费的整个过程的有效控制,成本才会显著降低。基于此思想,结合实例,确定了全面成本周期下影响成本的因素,结合成本控制的几种途径,通过ERP系统对成本控制进行分析,最后,提出了成本控制在企业中应用的意义。 相似文献
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1.EPR悖论产生的要害或根源在于,背景知识是“有毛病的”却叉被公认为正确的。爱因斯坦等人借助于理想实验和EPR论证,发掘了量子力学背后在元理论层次的奇特的非定域性假设,从表面上看,似乎违背相对论的要求。2.贝尔不等式的实验检验属于“判决性实验”的范畴。3.组拉特的“船上修船”与波普尔的“沼泽地”隐喻都生动地说明科学理论可以有相对可靠的经验基础。同样道理,“可错的背景知识”有资格成为“判决性实验”的相对可靠的逻辑基础,因此判决性实验的判决效力也是相对确定的。4.爱因斯坦想维护实在论和非超距作用并不错,但量子整体性或远程关联性也不容忽视,它将展示有待进一步挖掘的深刻含义。 相似文献
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