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Collaborative adoption of blockchain technology: A supply chain contract perspective

《工程管理前沿(英文)》   页码 121-142 doi: 10.1007/s42524-022-0239-8

摘要: The outbreak of COVID-19 has significantly affected the development of enterprises. In the post-pandemic era, blockchain technology has become one of the important technologies to help enterprises quickly gain market competitiveness. The heavy investment required of supply chain stakeholders to employ blockchain technology has hindered its adoption and application. To tackle this issue, this study aims to facilitate the adoption of blockchain technology in a supply chain consisting of a core enterprise and a small/medium-sized enterprise through an effective supply chain contract. We analyze the performance of a cost-sharing (CS) contract and a revenue-sharing (RS) contract and propose a new hybrid CS-RS contract for better performance. We conduct comparative analyses of the three contracts and find that the hybrid CS-RS contract can more effectively incentivize both parties to reach the highest level of blockchain technology adoption and achieve supply chain coordination.

关键词: blockchain     collaborative adoption     cost sharing     revenue sharing     hybrid contract    

Low-Cost Federated Broad Learning for Privacy-Preserved Knowledge Sharing in the RIS-Aided Internet of

Xiaoming Yuan,Jiahui Chen,Ning Zhang,Qiang Ye,Changle Li,Chunsheng Zhu,Xuemin Sherman Shen,

《工程(英文)》 doi: 10.1016/j.eng.2023.04.015

摘要: High-efficiency and low-cost knowledge sharing can improve the decision-making ability of autonomous vehicles by mining knowledge from the Internet of Vehicles (IoVs). However, it is challenging to ensure high efficiency of local data learning models while preventing privacy leakage in a high mobility environment. In order to protect data privacy and improve data learning efficiency in knowledge sharing, we propose an asynchronous federated broad learning (FBL) framework that integrates broad learning (BL) into federated learning (FL). In FBL, we design a broad fully connected model (BFCM) as a local model for training client data. To enhance the wireless channel quality for knowledge sharing and reduce the communication and computation cost of participating clients, we construct a joint resource allocation and reconfigurable intelligent surface (RIS) configuration optimization framework for FBL. The problem is decoupled into two convex subproblems. Aiming to improve the resource scheduling efficiency in FBL, a double Davidon–Fletcher–Powell (DDFP) algorithm is presented to solve the time slot allocation and RIS configuration problem. Based on the results of resource scheduling, we design a reward-allocation algorithm based on federated incentive learning (FIL) in FBL to compensate clients for their costs. The simulation results show that the proposed FBL framework achieves better performance than the comparison models in terms of efficiency, accuracy, and cost for knowledge sharing in the IoV.

关键词: Knowledge sharing     Internet of Vehicles     Federated learning     Broad learning     Reconfigurable intelligent surfaces     Resource allocation    

Reducing CO emissions from the rebalancing operation of the bike-sharing system in Beijing

《工程管理前沿(英文)》 2023年 第10卷 第2期   页码 262-284 doi: 10.1007/s42524-021-0168-y

摘要: With the development of the bike-sharing system (BSS) and the introduction of green and low carbon development, the environmental impacts of BSS had received increasing attention in recent years. However, the emissions from the rebalancing of BSS, where fossil-fueled vehicles are commonly used, are usually neglected, which goes against the idea of green travel in a sharing economy. Previous studies on the bike-sharing rebalancing problem (BRP), which is considered NP-hard, have mainly focused on algorithm innovation instead of improving the solution model, thereby hindering the application of many existing models in large-scale BRP. This study then proposes a method for optimizing the CO2 emissions from BRP and takes the BSS of Beijing as a demonstration. We initially analyze the spatial and temporal characteristics of BSS, especially the flow between districts, and find that each district can be independently rebalanced. Afterward, we develop a rebalancing optimization model based on a partitioning strategy to avoid deciding the number of bikes being loaded or unloaded at each parking node. We then employ the tabu search algorithm to solve the model. Results show that (i) due to over launch and lack of planning in rebalancing, the BSS in Beijing shows great potential for optimization, such as by reducing the number of vehicle routes, CO2 emissions, and unmet demands; (ii) the CO2 emissions of BSS in Beijing can be reduced by 57.5% by forming balanced parking nodes at the end of the day and decreasing the repetition of vehicle routes and the loads of vehicles; and (iii) the launch amounts of bikes in specific districts, such as Shijingshan and Mentougou, should be increased.

关键词: bike-sharing     CO2 emissions     environmental benefit     partitioning strategy     rebalancing problem    

Data sharing mechanism of various mineral resources based on blockchain

Yili REN, Jia LIANG, Jian SU, Gang CAO, He LIU

《工程管理前沿(英文)》 2020年 第7卷 第4期   页码 592-604 doi: 10.1007/s42524-020-0132-2

摘要: Basins with various mineral resources coexisting and enriching often occupy an important strategic position. The exploration of various mineral resources is repetitive at present due to unshared data and imperfect management mechanism. This situation greatly increases the cost of energy exploitation in the country. Traditional data-sharing mode has several disadvantages, such as high cost, difficulty in confirming the right of data, and lack of incentive mechanism, which make achieving real data sharing difficult. In this paper, we propose a data-sharing mechanism based on blockchain and provide implementation suggestions and technical key points. Compared with traditional data-sharing methods, the proposed data-sharing mechanism can realize data sharing, ensure data quality, and protect intellectual property. Moreover, key points in the construction are stated in the case study section to verify the feasibility of the data-sharing system based on blockchain proposed in this paper.

关键词: data sharing     blockchain     various mineral resources     collaborative exploration     big data    

Research on Knowledge Sharing and Transfer in Remanufacturing Engineering Management Based on SECI Model

Ling-ling Zhang,Ming-hui Zhao,Qiao Wang

《工程管理前沿(英文)》 2016年 第3卷 第2期   页码 136-143 doi: 10.15302/J-FEM-2016030

摘要: In this paper, an application mode and method of knowledge management in remanufacturing engineering management is established based on Nonaka’s SECI model. The relationships between knowledge transfer, knowledge sharing and remanufacturing engineering management are highlighted. It is noticeable that a great deal of knowledge transfer and sharing activities, which can improve the performance of remanufacturing engineering management constantly, are involved in remanufacturing engineering.

关键词: remanufacturing     engineering management     knowledge transfer and sharing     knowledge management    

Interaction behavior and load sharing pattern of piled raft using nonlinear regression and LM algorithm-based

《结构与土木工程前沿(英文)》 2021年 第15卷 第5期   页码 1181-1198 doi: 10.1007/s11709-021-0744-6

摘要: In the recent era, piled raft foundation (PRF) has been considered an emergent technology for offshore and onshore structures. In previous studies, there is a lack of illustration regarding the load sharing and interaction behavior which are considered the main intents in the present study. Finite element (FE) models are prepared with various design variables in a double-layer soil system, and the load sharing and interaction factors of piled rafts are estimated. The obtained results are then checked statistically with nonlinear multiple regression (NMR) and artificial neural network (ANN) modeling, and some prediction models are proposed. ANN models are prepared with Levenberg–Marquardt (LM) algorithm for load sharing and interaction factors through backpropagation technique. The factor of safety (FS) of PRF is also estimated using the proposed NMR and ANN models, which can be used for developing the design strategy of PRF.

关键词: interaction     load sharing ratio     piled raft     nonlinear regression     artificial neural network    

服务供应链的信息共享机制及绩效研究

杨善林,程飞,杨昌辉

《中国工程科学》 2011年 第13卷 第8期   页码 80-86

摘要:

文章研究的服务供应链包含一个服务供应商和一个服务集成商信息共享机制问题。服务供应商提供原始服务产品或活动给服务集成商,而服务集成商依次以附加值集成服务出售给客户。在不确定性市场环境下,客户服务需求量带有价格敏感和随机性的特征。在服务供应商和服务集成商之间,探析服务供应链的不同信息传输方式下信息共享机制问题,评估服务供应链的绩效,其结果强调服务业开展信息共享的必要性。

关键词: service supply chain     service vendor     service integrator     information sharing     coordination    

从资源共享到服务共享:透明计算的机遇与挑战

张尧学,周悦芝

《中国工程科学》 2009年 第11卷 第8期   页码 10-17

摘要:

随着计算机和网络技术以及应用的不断快速发展,计算模式从最初的以主机计算为主,发展到以桌面(PC)计算为主,再发展到现在的以网络计算为主,乃至普适计算。然而,迄今为止的计算模式还是遵循以单机或单机联合为基础的单机思维模式,因此,目前的计算模式还是一种以“资源共享”为主要特征的计算。在网络和普适计算的新时代,用户关心的主要是服务和服务共享,计算机也将从以“资源共享”为特征的计算过渡到以“服务共享”为特征的计算。笔者提出一种适应于“服务共享”的计算模式——透明计算,并对其概念、体系结构及相关关键技术进行介绍。此外,还对透明计算的未来发展及影响进行展望。

关键词: 普适计算     资源共享     服务共享     透明计算    

发展共享汽车推动汽车强国建设

乔英俊,纪雪洪

《中国工程科学》 2018年 第20卷 第1期   页码 120-126 doi: 10.15302/J-SSCAE-2018.01.017

摘要:

本文介绍了共享汽车在国内外的发展现状与前景,并结合现阶段汽车发展的低碳化、电动化、网联化、智能化和共享化等新特征,着重对共享化推动汽车转型发展的影响进行了阐述。在此基础上,提出政府应将共享汽车放在汽车强国建设的战略高度,创造良好的发展环境,推动共享汽车在我国快速发展。

关键词: 共享汽车     汽车强国     问题     政策    

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

摘要: Optimal application of pavement preservation or preventive maintenance is critical for highway agencies to allocate the limited budget for different treatments. This study developed an integrated life-cycle cost analysis (LCCA) model to quantify the impact of pavement preservation on agency cost and vehicle operation cost (VOC) and analyzed the optimal timing of preservation treatments. The international roughness index (IRI) data were extracted from the long-term pavement performance (LTPP) program specific pavement studies 3 (SPS-3) to determine the long-term effectiveness of preservation treatments on IRI deterioration. The traffic loading and the initial IRI value significantly affects life extension and the benefit of agency cost caused by pavement preservation. The benefit in VOC is one to two orders greater in magnitude as compared to the benefit in agency cost. The optimal timing calculated based on VOC is always earlier than the optimal timing calculated based on agency cost. There are considerable differences among the optimal timing of three preservation treatments.

关键词: pavement preservation     life-cycle cost analysis     agency cost     vehicle operation cost    

Comparative cost analysis of three different anesthesia methods in gynecological laparoscopic surgery

null

《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

摘要:

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.

关键词: general anesthesia     economics     cost    

Load-sharing mechanism in timber-steel hybrid shear wall systems

Zheng LI,Minjuan HE,Frank LAM,Minghao LI

《结构与土木工程前沿(英文)》 2015年 第9卷 第2期   页码 203-214 doi: 10.1007/s11709-015-0293-y

摘要: The lateral performance of timber-steel hybrid shear wall systems with regard to the interaction between the steel frame and the infill wood shear wall was investigated in this paper. A numerical model for the timber-steel hybrid shear wall system was developed and verified against test results. Design parameters, such as the lateral infill-to-frame stiffness ratio and the arrangements of wood-steel bolted connections were studied using the numerical model. Some design recommendations were also proposed based on the parametric analysis. In the hybrid shear wall system, the infill wood wall was found to resist a major part of the lateral load within relatively small wall drifts, and then the steel frame provided more lateral resistance. Under seismic loads, the infill wood wall could significantly reduce the inter-story drift of the hybrid system, and a complementary effect between the infill wood wall and the steel frame was observed through different lateral load resisting mechanisms, which provided robustness to the hybrid shear wall systems.

关键词: timer-steel hybrid     shear wall     load sharing mechanism     seismic performance     parametric analysis    

Planet position errors in planetary transmission: Effect on load sharing and transmission error

Miguel IGLESIAS, Alfonso FERNáNDEZ, Ana DE-JUAN, Ramón SANCIBRIáN, Pablo GARCíA

《机械工程前沿(英文)》 2013年 第8卷 第1期   页码 80-87 doi: 10.1007/s11465-013-0362-7

摘要:

In this paper an advanced model of spur gear transmissions developed by the authors is used to study the influence of carrier planet pin hole position errors on the behaviour of the transmission. The model, initially conceived for external gear modeling, has been extended with internal meshing features, and thus increasing its capabilities to include planetary transmission modeling. The new features are presented, along with the summary of the model general approach. The parameters and characteristics of the planetary transmission used in the paper are introduced. The influence of carrier planet pin hole position errors on the planet load sharing is studied, and several static cases are given as examples in order to show the ability of the model. Tangential and radial planet pin hole position errors are considered independently, and the effect of the load level is also taken into account. It is also given attention to the effect on the transmission error of the transmission. Two different configurations for the planetary transmission are used, attending to the fixed or floating condition of the sun, and the differences in terms of load sharing ratio are shown.

关键词: gear     planetary     epicyclic     transmission     load sharing     transmission error    

健康医疗数据共享基本原则探讨

张建楠,李莹莹,顾宴菊,朱烨琳,何前锋

《中国工程科学》 2020年 第22卷 第4期   页码 93-100 doi: 10.15302/J-SSCAE-2020.04.012

摘要:

我国健康医疗数据共享尚处于初级阶段,隐私安全、数据权属不清与利益分配不明等关键问题阻碍了健康医疗数据共享的发展。健康医疗数据共享基本原则的建立可为科学开展健康医疗数据共享活动提供指导,促进健康医疗数据共享及价值变现。本文整理归纳了43项国际健康医疗数据共享基本原则内容,从法律、伦理道德和实践的角度出发,分析了国际上开展健康医疗数据共享活动时普遍关注和遵循的关键原则。研究发现,国际健康医疗数据共享中普遍重视价值、尊重、信任、公平与公正、安全、可评估与评估、规范性以及问责制原则的设定和体现。本文优化构建了高共识性健康医疗数据共享基本原则,有助于指导健康医疗数据共享活动的实施,促进我国健康医疗数据合理、合法、合规共享,推进大数据时代背景下“互联网 +”在健康医疗领域的深化应用。

关键词: 数据共享,健康医疗,共享行为,基本原则    

Lifecycle carbon footprint and cost assessment for coal-to-liquid coupled with carbon capture, storage

《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

摘要: The coal-to-liquid coupled with carbon capture, utilization, and storage technology has the potential to reduce CO2 emissions, but its carbon footprint and cost assessment are still insufficient. In this paper, coal mining to oil production is taken as a life cycle to evaluate the carbon footprint and levelized costs of direct-coal-to-liquid and indirect-coal-to-liquid coupled with the carbon capture utilization and storage technology under three scenarios: non capture, process capture, process and public capture throughout the life cycle. The results show that, first, the coupling carbon capture utilization and storage technology can reduce CO2 footprint by 28%–57% from 5.91 t CO2/t·oil of direct-coal-to-liquid and 24%–49% from 7.10 t CO2/t·oil of indirect-coal-to-liquid. Next, the levelized cost of direct-coal-to-liquid is 648–1027 $/t of oil, whereas that of indirect-coal-to-liquid is 653–1065 $/t of oil. When coupled with the carbon capture utilization and storage technology, the levelized cost of direct-coal-to-liquid is 285–1364 $/t of oil, compared to 1101–9793 $/t of oil for indirect-coal-to-liquid. Finally, sensitivity analysis shows that CO2 transportation distance has the greatest impact on carbon footprint, while coal price and initial investment cost significantly affect the levelized cost of coal-to-liquid.

关键词: coal-to-liquid     carbon capture     utilization and storage (CCUS)     carbon footprint     levelized cost of liquid     lifecycle assessment    

标题 作者 时间 类型 操作

Collaborative adoption of blockchain technology: A supply chain contract perspective

期刊论文

Low-Cost Federated Broad Learning for Privacy-Preserved Knowledge Sharing in the RIS-Aided Internet of

Xiaoming Yuan,Jiahui Chen,Ning Zhang,Qiang Ye,Changle Li,Chunsheng Zhu,Xuemin Sherman Shen,

期刊论文

Reducing CO emissions from the rebalancing operation of the bike-sharing system in Beijing

期刊论文

Data sharing mechanism of various mineral resources based on blockchain

Yili REN, Jia LIANG, Jian SU, Gang CAO, He LIU

期刊论文

Research on Knowledge Sharing and Transfer in Remanufacturing Engineering Management Based on SECI Model

Ling-ling Zhang,Ming-hui Zhao,Qiao Wang

期刊论文

Interaction behavior and load sharing pattern of piled raft using nonlinear regression and LM algorithm-based

期刊论文

服务供应链的信息共享机制及绩效研究

杨善林,程飞,杨昌辉

期刊论文

从资源共享到服务共享:透明计算的机遇与挑战

张尧学,周悦芝

期刊论文

发展共享汽车推动汽车强国建设

乔英俊,纪雪洪

期刊论文

Life-cycle cost analysis of optimal timing of pavement preservation

Zilong WANG,Hao WANG

期刊论文

Comparative cost analysis of three different anesthesia methods in gynecological laparoscopic surgery

null

期刊论文

Load-sharing mechanism in timber-steel hybrid shear wall systems

Zheng LI,Minjuan HE,Frank LAM,Minghao LI

期刊论文

Planet position errors in planetary transmission: Effect on load sharing and transmission error

Miguel IGLESIAS, Alfonso FERNáNDEZ, Ana DE-JUAN, Ramón SANCIBRIáN, Pablo GARCíA

期刊论文

健康医疗数据共享基本原则探讨

张建楠,李莹莹,顾宴菊,朱烨琳,何前锋

期刊论文

Lifecycle carbon footprint and cost assessment for coal-to-liquid coupled with carbon capture, storage

期刊论文