Results 41 to 50 of about 19,035 (168)
Design and Implementation of Elevator Company KONE Construction Quality Management Information System [PDF]
随着科学技术的发展与普及,基于信息技术的信息系统已被广泛地使用在社会商业、人事等领域中。但是,由于社会需求的进一步提高,以前的一些信息系统已经不能满足当前社会的需求,不仅仅是在技术上,更是在整体设计上也不够完善。步入新世纪以来,高层建筑及各类商业建筑的建造速度在不断加快,对于电梯产品施工的要求也越来越高。在此情况下,电梯公司所需处理的业务与项目种类数量也十分巨大。但是,电梯公司使用的施工管理系统还是比较传统的,不能适应当前社会需求,不满足当前公司的发展 ...
秦广
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ABSTRACT Prelithiation is effective for compensating active lithium‐ion (Li+) loss in silicon (Si)‐based battery electrode materials. However, owing to the dynamic growth of the solid electrolyte interface (SEI), capacity fading remains the biggest challenge for the industrialization of Si electrodes.
Wen‐Jie He +9 more
wiley +1 more source
How much biotic nativeness matters across human demographic groups
Abstract Many central concepts of conservation biology—such as nativeness—are structured by ecological and social factors. However, the social consequences of using these concepts to make conservation decisions remain inadequately understood. Some researchers argue that nativeness, rather than acting as an objective proxy for important ecological ...
Harold N. Eyster, Rachelle K. Gould
wiley +1 more source
Research On The Quality Management Of M Company's Mobile Phone Software Development Project [PDF]
近年来随着移动互联网的兴起,无线通信行业在我国得到极大的发展,作为移动终端——手机,功能也越来越强大,终端厂商竞争日益激烈,大众对手机质量要求越来越高。如何提高手机质量,除了提高手机研发本身技术外,从管理角度,手机软件项目质量管理作为提高手机质量非常重要部分显得十分关键。 本文以M公司为研究对象,以软件项目质量管理的方法为基础,对目前手机软件项目过程中的质量管理问题进行分析和研究,运用CMMI(CapabilityMaturityModelIntegration,能力成熟度模型集成 ...
褚懿全
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ABSTRACT Platinum (Pt)‐based catalysts are crucial for the commercialization of hydrogen/metal air batteries, but they suffer from Pt scarcity, high cost, and nanoparticle dissolution/agglomeration, mainly leading to performance degradation. We address this by synthesizing a PtFe alloy catalyst (PtFe–PA–NC) via a phytic acid (PA) assisted pyrolysis ...
Chenyang Shu +9 more
wiley +1 more source
Research and Implementation on Quality Improvement during Packaging Process Based on Six Sigma [PDF]
质量是企业的生命,也是对消费者根本利益的保证,在厦烟生产过程中,产品质量问题时有发生,造成企业生产成本的上升。开展卷包工序质量改进项目,就是想达到进一步提高卷烟产品质量,降低成本,从而提升本企业卷烟产品竞争力的目的。 六西格玛是20世纪八十年代末由摩托罗拉公司提出的一种质量改进和质量管理方法,它使用数据、事实来解决问题。六西格玛管理关注过程,特别是企业为市场和顾客提供价值的核心过程,其主要目的是在生产过程中降低产品及流程的缺陷次数,防止产品变异,提升品质 ...
陈锦聪
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ABSTRACT The construction of p–n homojunctions represents a promising strategy for effective solar‐driven photocatalytic hydrogen evolution, owing to their inherent advantages of superior lattice matching and minimized charge transfer resistance. However, this approach remains largely unexplored.
Yueqiang Lin +6 more
wiley +1 more source
Study on New Product Development Quality Management of A Company based on DFSS [PDF]
产品研制的合格率低、可靠性差以及用户体验感不好是很多企业的常见问题。研究发现:造成研发质量此类问题的主要原因为企业在产品设计过程对客户需求的理解有偏差,未能在研发阶段尽早发现潜在质量问题,导致产品设计不够稳健。研究一个适合研发型企业的开发管理体系,并寻找合适产品开发设计的控制方法和模式来保证产品开发设计的过程得到充分管控,保证产品研发质量成为一个迫切需求。特别在客户需求识别、产品的失效模式和关键质量控制点的识别等关键环节过程,以及在设计参数和容差上缺乏管控和优化的过程探索一个合适的管理方法 ...
钟嘉强
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Read the free Plain Language Summary for this article on the Journal blog. Abstract Stand functional diversity (RaoQ) and stand functional composition in terms of the functional traits of the component species (CWM trait) are critical for ecosystem processes and functioning, such as litter decomposition and associated nutrient cycling.
Bai‐Yu Yang +12 more
wiley +1 more source
Distribution and Risk Assessment of Perfluorinated Compounds in Jiulong River Watershed-Estuary System [PDF]
九龙江是闽南和闽西地区重要的饮用水源和工农业用水水源,但近年来九龙江污染日趋严重,河流生态系统承受着巨大的压力,其中持久性有机污染物(POPs)因其难降解性、生物富集性和高致毒性备受人们关注。全氟化合物(PFCs)是一类碳链上氢原子全部被氟原子取代的有机化合物,由于其良好的疏水、疏油特性,已被广泛应用于多种工业和民用产品中,与人类生产生活密切相关。由于PFCs稳定性极强,目前已在包括水、土壤、大气等环境介质及生物体中大量检出。毒理学研究表明,部分PFCs具有致癌性、肝毒性、神经毒性、生殖毒性、免疫毒性等,
蔡一枝
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