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Life-cycle cost analysis of optimal timing of pavement preservation
Zilong WANG,Hao WANG
《结构与土木工程前沿(英文)》 2017年 第11卷 第1期 页码 17-26 doi: 10.1007/s11709-016-0369-3
关键词: pavement preservation life-cycle cost analysis agency cost vehicle operation cost
Full lifetime cost analysis of battery, plug-in hybrid and FCEVs in China in the near future
Zhihua CAI, Xunmin OU, Qian ZHANG, Xiliang ZHANG
《能源前沿(英文)》 2012年 第6卷 第2期 页码 107-111 doi: 10.1007/s11708-012-0182-1
Hybrid optimization algorithm for modeling and management of micro grid connected system
Kallol ROY,Kamal Krishna MANDAL
《能源前沿(英文)》 2014年 第8卷 第3期 页码 305-314 doi: 10.1007/s11708-014-0308-8
关键词: micro grid (MG) multi-objective function artificial bee colony (ABC) fuel cost operation and maintenance cost
Levelized costs of the energy chains of new energy vehicles targeted at carbon neutrality in China
《工程管理前沿(英文)》 页码 392-408 doi: 10.1007/s42524-022-0212-6
关键词: energy chain new energy vehicle internal combustion engine vehicle life cycle cost technological learning
Development and deep-sea exploration of the Haidou-1
《工程管理前沿(英文)》 页码 546-549 doi: 10.1007/s42524-023-0260-6
关键词: hadal zone autonomous and remotely-operated vehicle integrated exploration operation deep dive exceeding 10000 meters
Analysis on carbon emission reduction intensity of fuel cell vehicles from a life-cycle perspective
《能源前沿(英文)》 doi: 10.1007/s11708-023-0909-1
关键词: hydrogen energy life-cycle assessment (LCA) fuel cell vehicle carbon emission energy cost
随机环境中的自主水下航行器鲁棒全局路径规划 Research Article
张佳欣1,2,刘妹琴1,2,3,张森林1,2,郑荣濠1,2
《信息与电子工程前沿(英文)》 2022年 第23卷 第11期 页码 1658-1672 doi: 10.1631/FITEE.2200026
本文提出一种在随机局部路径成本下使自主水下航行器在作业海域选择性地完成部分预定任务的路径规划器。该问题被表述为定向越野问题的变体。本文在遗传算法(GA)的基础上,提出一种基于贪心策略的遗传算法(GGA)。该算法包含一种新颖的通过在进化过程中将不可行个体映射到可行解空间来提高优化效率的重生算子,并以差分进化规划器计算确定性局部路径成本。局部路径成本的不确定性来自不可预测的障碍物、测量误差和轨迹跟踪误差。为了提高规划器在不确定环境下的鲁棒性,设计了一种用于路径评估的采样策略,通过对局部路径的概率密度函数多次采样,得到对路径实际成本的估计。通过蒙特卡罗仿真实验验证所提规划器的优越性和有效性。仿真结果表明,所提出的GGA在总收益方面优于同类算法4.7%–¬¬24.6%,而基于抽样的GGA路径规划器(S-GGARP)相较于普通的GGA路径规划器(GGARP)提高了5.5%的平均收益。
Neural Operation Management: A New Avenue for Productive and Military Operations
Qing-guo Ma
《工程管理前沿(英文)》 2014年 第1卷 第3期 页码 304-307 doi: 10.15302/J-FEM-2014039
关键词: operation management productive operation military operation neural operation management neuromanagement
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《医学前沿(英文)》 2012年 第6卷 第3期 页码 311-316 doi: 10.1007/s11684-012-0205-7
In the current study, we assessed and evaluated the costs and benefits of three popular methods of general anesthesia practiced in our department for gynecological laparoscopic surgery in recent years. Sixty adult female patients who underwent elective gynecological laparoscopic surgery under general anesthesia were randomly divided into three groups: group V, group I and group C. In group V, anesthesia was induced intravenously with midazolam, remifentanil, propofol and vecuronium, and maintained with continuous infusion of propofol and remifentanil. In group I, anesthesia was intravenously induced with midazolam, fentanyl, propofol and vecuronium, and maintained with inhaled isoflurane and intravenous bonus of fentanyl. In group C, anesthesia was induced as in group I, but maintained with isoflurane inhalation combined with propofol-remifentanil infusion. All patients received vecuronium for muscle relaxation. Perioperative incidences of complications and total anesthesia costs for patients in all groups were recorded. In addition, postoperative satisfaction of the patients was also noted, and similar outcomes of the satisfaction were reported in all 60 patients. Although there was no statistical significance among groups, the incidence of postoperative nausea and vomiting were higher in group C, and the rates of shivering and the needs for analgesics were higher in group V. Anesthesia costs in group I were the lowest. Therefore, it is concluded that the costs of anesthesia induced with midazolam, fentanyl, propofol, vecuronium, and maintained with isoflurane, fentanyl and vecuronium are cheapest, and there is no significant difference in patients’ satisfaction and safety among the three above-mentioned methods of anesthesia in our department.
《能源前沿(英文)》 2023年 第17卷 第3期 页码 412-427 doi: 10.1007/s11708-023-0879-3
关键词: coal-to-liquid carbon capture utilization and storage (CCUS) carbon footprint levelized cost of liquid lifecycle assessment
Rini NISHANTH, Andrew WHYTE, V. John KURIAN
《工程管理前沿(英文)》 2018年 第5卷 第3期 页码 357-368 doi: 10.15302/J-FEM-2018022
Floating production storage and offloading (FPSO) units increasingly represent a practical and economic means for deep-water oil extraction and production. Systems thinking gives a unique opportunity to seek a balance between FPSO technical performance(s), with whole-cost; stakeholder decision-making is charged to align different fit-for-use design specification options’ that address technical-motion(s), with respective life-cycle cost analyses (LCCA). Soft system methodology allows situation based analyses over set periods-of-time by diagnosing the problem-at-hand; namely, assessing the antecedents of life-cycle cost relative to FPSO sub-component design alternatives. Alternative mooring- component comparisons for either new-build hulls or refurbished hulls represent an initial necessary consideration to facilitate extraction, production and storage of deep-water oil reserves. Coupled dynamic analysis has been performed to generate FPSO motion in six degrees of freedom using SESAM DeepC, while life-cycle cost analysis (LCAA) studies give net-present-value comparisons reflective of market conditions. A parametric study has been conducted by varying wave heights from 4 – 8 m to understand FPSO motion behavior in the presence of wind and current, as well as comparing the motions of turreted versus spread mooring design alternatives. LCCA data has been generated to compare the cost of such different mooring options/hull conditions over 10 and 25-year periods. Systems thinking has been used to explain the interaction of problem variables; resultantly this paper is able to identify explicit factors affecting the choice of FPSO configurations in terms of motion and whole-cost, toward assisting significantly with the front-end engineering design (FEED) phase of fit-for-purpose configured FPSOs, in waters off Malaysia and Australia.
关键词: FPSO LCCA spread/turret-mooring DeepC cost motion soft-systems
孙逢春,何洪文
《中国工程科学》 2018年 第20卷 第1期 页码 59-67 doi: 10.15302/J-SSCAE-2018.01.009
发展新能源汽车是世界共识,以纯电驱动为特点的新能源汽车被确定为我国的战略性新兴产业和“中国制造2025”重点领域。本文对我国电动商用车发展的历程和技术路线、特点等进行了综述,结合北京奥运会“零排放区24 h不间断安全运行”的需求背景,系统提出并明确了“电动商用车系统工程”的内涵,就其三大核心组成要素“电动商用车平台、充/换电站、运营监控”及其关键技术,分别进行了研究分析。最后,针对我国新能源汽车2020年500万辆级规模应用和2022年北京冬季奥林匹克运动会–25 ℃环境下的应用需求,探讨了电动商用车系统工程体系化升级的抓手,目标是真正实现纯电动商用车“性能优越、技术无短板、推广应用无禁区”。
Manufacturing cost constrained topology optimization for additive manufacturing
Jikai LIU, Qian CHEN, Xuan LIANG, Albert C. TO
《机械工程前沿(英文)》 2019年 第14卷 第2期 页码 213-221 doi: 10.1007/s11465-019-0536-z
关键词: topology optimization manufacturing cost additive manufacturing powder bed
Low-cost adsorbents for urban stormwater pollution control
Yang Deng
《环境科学与工程前沿(英文)》 2020年 第14卷 第5期 doi: 10.1007/s11783-020-1262-9
关键词: Urban stormwater Runoff pollutants Low-cost adsorbents Adsorption Chemical leaching
Low-cost green building practice in China: Library of Shandong Transportation College
Yingxin ZHU, Borong LIN, Bin YUAN,
《能源前沿(英文)》 2010年 第4卷 第1期 页码 100-105 doi: 10.1007/s11708-009-0072-3
关键词: green building low cost technique energy efficiency integrated strategy
标题 作者 时间 类型 操作
Full lifetime cost analysis of battery, plug-in hybrid and FCEVs in China in the near future
Zhihua CAI, Xunmin OU, Qian ZHANG, Xiliang ZHANG
期刊论文
Hybrid optimization algorithm for modeling and management of micro grid connected system
Kallol ROY,Kamal Krishna MANDAL
期刊论文
Levelized costs of the energy chains of new energy vehicles targeted at carbon neutrality in China
期刊论文
Analysis on carbon emission reduction intensity of fuel cell vehicles from a life-cycle perspective
期刊论文
Comparative cost analysis of three different anesthesia methods in gynecological laparoscopic surgery
null
期刊论文
Lifecycle carbon footprint and cost assessment for coal-to-liquid coupled with carbon capture, storage
期刊论文
Floating production storage and offloading systems’ cost and motion performance: A systems thinking application
Rini NISHANTH, Andrew WHYTE, V. John KURIAN
期刊论文
Manufacturing cost constrained topology optimization for additive manufacturing
Jikai LIU, Qian CHEN, Xuan LIANG, Albert C. TO
期刊论文