Results 51 to 60 of about 32,590 (266)

Quality Improvement Based on ISO9001:2015 Quality Management System – A Case Study on Machinery Manufacturing Company K [PDF]

open access: yes, 2016
近年来机械加工制造业处于下行阶段,持续低迷的市场形势以及不断攀升的运营成本给企业的生产经营带来了很大的压力和挑战。如何在经营中享有利润空间并在残酷的市场竞争中占据一席成为传统制造企业面临的一个难题。在市场竞争的种类、品质、价格、服务和交期这五个要素中,品质占据非常重要的地位,质量管理是一个突破口。企业要在提高生产效率的同时提高产品质量,满足不断变化的客户需求,同时降低成本,则需要对质量管理体系进行持续改进,从系统的角度提升企业的质量管理水平,以满足不断变化的市场和客户需求 ...
杨青梅
core  

CHINA’S LAND FINANCE AS ACTIVE MODE OF LAND DEVELOPMENT AND INFRASTRUCTURE DELIVERY: Reality, History and Prospects

open access: yesInternational Journal of Urban and Regional Research, Volume 50, Issue 1, Page 191-220, January 2026.
Abstract Henry George advocated for capturing land value increases for public ends. The active approach of public authorities organizing and financing land development can help capture higher land value increases, as Hartman and Spit indicate. However, this approach hardly happens in developing countries, where the coalition of private developers and ...
Nannan Xu
wiley   +1 more source

变质量动力吸振器模糊控制策略研究

open access: yesZhendong Ceshi yu Zhenduan
为了克服传统动力吸振器有效频带过窄的缺陷,提高其减振效果,针对一种新型自适应动力吸振器‑变质量动力吸振器,研究了基于模糊逻辑的控制策略。该控制策略通过变质量动力吸振器与主系统振动信号的相位差判断吸振器固有频率与主系统激振频率是否相等,在吸振器失谐时采用模糊控制规则改变吸振器质量,使吸振器固有频率能够及时跟踪主系统激振频率的变化。通过数字仿真和台架实验对该控制策略的效果进行了验证,结果表明:所设计的基于模糊逻辑的变质量动力吸振器控制策略能够根据主系统激振频率的变化调整吸振器质量,使吸振器总是处于调谐状态 ...
doaj   +1 more source

Characterization of Peptide Utilization by Bifidobacterium bifidum: Insights From Computer Simulations and In Vitro Verification to Enhance Nitrogen Source Utilization

open access: yesFood Science &Nutrition, Volume 13, Issue 12, December 2025.
Bifidobacterium bifidum preferentially absorbs short peptides with molecular weights below 2000 Da that are rich in proline (Pro) and leucine (Leu). Molecular docking reveals that the length of transportable peptides correlates with the size of the OppA‐binding cavity, while the presence of Pro and Leu significantly enhances peptide‐OppA interactions ...
Xin Qian   +7 more
wiley   +1 more source

Pollution Characteristics and Preliminary Risk Assessment of Organic agrochemicals in Surface Water of Jiulong River Watershed [PDF]

open access: yes, 2015
农用化学品作为重要的农业生产资料之一,在提高农产品生产率方面发挥着重要作用。农药、兽药等农用有机化学品使用后可能通过干湿沉降、地表径流冲刷等途径进入水环境,威胁水生生态系统健康,导致饮用水源污染、食品安全等问题。 本论文选择常用的40类210种农药(包括氨基甲酸酯类、拟除虫菊酯类、酰胺类、唑类等)和21类100种兽药(包括大环内酯类、四环素类、磺胺类、性激素类等)作目标物,分别建立其在表层水中的分析方法,应用于九龙江流域北溪、西溪、河口农用有机化学品复合污染状况研究 ...
陈茜茜
core  

Decoupling the Roles of Corticosterone in Mediating Effects of Methylmercury and Chytrid Fungus (Bd) on Amphibian Survival 解构皮质酮在介导甲基汞与壶菌 (Bd) 对两栖动物生存影响中的双重作用

open access: yesWildlife Letters, Volume 3, Issue 4, Page 143-151, December 2025.
Effects of methylmercury bioaccumulation on survival of Columbia Spotted Frogs were modified by sex and length and were mediated by corticosterone (a glucocorticoid hormone) whereas effects of chytrid fungus were limited. ABSTRACT Amphibians have suffered widespread declines caused by many interacting factors whose effects are often difficult to ...
Brian J. Tornabene   +7 more
wiley   +1 more source

Design and Implementation of Application System on Actual Population Basic Information Sharing in Yunnan Province [PDF]

open access: yes, 2016
人口信息是人类社会宝贵的基础资源,属于社会信息中最核心、最重要的基础信息,是国家制定和实施决策的重要依据,是指导经济建设、政治建设、文化建设、社会建设、生态文明建设的关键要素。人口信息具有信息量大、增长快速、变更频繁、存放分散等特点。人口信息的现代化管理,是有效整合提升政府服务和公共管理能力,建设服务型政府的内在要求,是全社会发展和文明进步的标志之一。 本文对云南省政府各部门人口管理现状及共享需求进行了深入分析,阐明了项目研发过程中存在的困难和问题,确定了研究思路。通过实有人口基础信息共享应用系统的建设,
杨毓鉴
core  

Factors influencing fine roots decomposition rates in response to nitrogen addition vary across root characteristics

open access: yesFunctional Ecology, Volume 39, Issue 12, Page 3504-3516, December 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Nitrogen (N) deposition strongly affects litter decomposition and nutrient release, thereby reshaping carbon cycling in terrestrial ecosystems. Although most studies have focused on above‐ground litter, the effects of N addition on fine root decomposition and their ...
Yuneng Wang   +5 more
wiley   +1 more source

微网电能质量特征及其监测分析

open access: yesGaoya dianqi, 2015
文中综述了微网特点及其控制策略,分析了微网不同运行模式下电能质量的基本特征及其电能质量监测应关注的主要议题。分析表明:微网不仅需要关注稳态、暂态电能质量问题,也需要关注瞬态电能质量议题;微网电能质量测量不仅要关注基于电能质量国标限值的干扰测量,还要关注基于设备危害的电能质量测试数据并采用合理的评估方法。在该基础上,文中概括了目前微网电能质量控制的争议所在,突出表现在当大电网电能质量不满足要求时,微网是否需要主动转入孤岛运行模式。
潘爱强   +3 more
doaj  

脑出血医疗质量控制指标 Medical Quality Control Indicators for Intracerebral Hemorrhage

open access: yesZhongguo cuzhong zazhi
国家神经系统疾病医疗质量控制中心脑血管病质控专病组联合中国卒中学会医疗质量管理与促进分会,通过系统回顾循证医学证据和国内外指南,广泛征询脑血管病相关临床、康复和科研领域的专家意见,制定了脑出血医疗质量控制指标体系。该指标体系涵盖脑出血的急性期救治、病因和并发症的筛查、康复及长期管理等不同方面,以率的形式对脑出血诊疗全周期的质量控制进行量化评估,有利于我国脑出血诊疗工作的规范性和同质性建设。 Abstract: After systematically reviewing evidence-based ...
The Cerebrovascular Disease Working Group of National Center for Healthcare Quality Management in Neurological Diseases
doaj   +1 more source

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