Results 41 to 50 of about 833 (115)

Product Life-cycle Cost and Trade-off Theory of the Cost Structure——An Incremental Cost-optimized Research Methods

, 2010
随着市场竞争程度的加强和产品寿命周期的缩短,对产品全寿命周期成本分析就显得非常重要。本文从企业的角度(生产者视角的产品寿命周期成本)采用价值链分析方法和增量成本分析方法讨论产品寿命周期成本与产品价值,以及产品寿命周期内各阶段成本结构的优化问题。将产品价值与产品寿命周期成本进行对比和优化从而为企业价值最大化和满足顾客需求提供判断依据。With the increasing market competition and the increasingly shorter product life cycles,
南星恒, 曾爱民
core  

基于SE-improved SGMD的混合储能容量优化配置方法研究

Gaoya dianqi
采用混合储能系统平抑风电输出功率波动可有效解决风电并网问题，而不同功率分配方法对混合储能优化配置结果影响大，为此提出一种基于样本熵改进的辛几何模态分解方法（sample entropy-improved symplectic geometric mode decomposition，SE-improved SGMD）的混合储能系统功率分配策略。首先，采用SGMD对不平衡功率进行分解，获取一系列辛几何分量SGC（symplectic geometry component）；然后 ...
刘禹彤, 赵琳, 王鑫太
doaj  

输配电线路全生命周期可靠性成本研究 Research on Life-Cycle Reliability Costs of Transmission Lines

, 2014
李铭钧, 欧郁强, 蔡德华, 莫穗江, 沈瀚洋   +4 more
semanticscholar   +1 more source

[Trends in burden of osteoporosis in China from 1990 to 2023 and analysis of epidemiological factors]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Wu Y, Lai Z, Yan H, Zhou B, Chen W, Zeng Z.   +5 more
europepmc   +1 more source

[Current status and Joinpoint regression analysis of the burden of musculoskeletal diseases in China from 1990 to 2023]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Hu Y, Hu L, Liu Q, Xiong Q, Li J, Yang C, Fu W.   +6 more
europepmc   +1 more source

[Disease burden trends of site-specific osteoarthritis in China from 1990 to 2023 and the attribution to high body mass index]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Xiong Q, Hu L, Hu Y, Liu Q, Li J, Yang C, Fu W.   +6 more
europepmc   +1 more source

[Analysis of current status and trends of disease burden of neck pain in China from 1990 to 2023]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Lu Z, Li J, Hu J, Zhao Y.
europepmc   +1 more source

[Trends of disease burden on spinal cord injury in China from 1990 to 2023]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Yang F, Han Y, Pan W, Luo X.
europepmc   +1 more source

[Analysis and Projection of the Burden of Chronic Respiratory Diseases Attributable to Smoking in China, 1990-2021]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Xie X, Lin D, Li M, Ye X, Fang J, Zhang X, Xue A.   +6 more
europepmc   +1 more source

[Effectiveness analysis of basal osteotomy of first metatarsal combined with first metatarsophalangeal joint replacement for treatment of hallux valgus combined with hallux rigidus]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Wang Y, Wang J, Li S, Lu Y.
europepmc   +1 more source