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学者姓名：彭锐
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摘要 ：
Reliability evaluation of complex network is one of main topics in complex engineering systems, especially for Internet of Things (IoT). The reliability of IoT partially depends on its large-scale network. Especially, the lifetime distribution of large-scale network is critical for its health management. However, the large scale of the network usually leads to an expensive simulation time cost. Instead of direct simulation, we propose a method to infer the large-scale network lifetime using small-scale networks with the universal scaling function (USF). We first find the scaling relationships between network lifetime and network size in a network model with failure coupling for 2-D square lattice network and Cayley tree network. Network lifetime with different size can be described by the USF. Then we perform theoretical analysis to derive the scaling relationships. Finally, we apply these scaling relationships to wireless sensor network with coupled failures in more realistic situation as case study. From the simulation results of smaller scale networks, we can infer the lifetime distribution of large-scale networks based on USF. The computation time and accuracy are compared with standard Monte Carlo simulation which shows that our method is faster and accurate. Our research shows that the proposed method using USFs can help us to infer the lifetime properties of large-scale networks with low-computational cost. Our method can help fast reliability evaluations of large-scale complex networks with high accuracy.
关键词 ：
large-scale network large-scale network reliability evaluation reliability evaluation universal scaling function (USF) universal scaling function (USF) Complex systems Complex systems
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| GB/T 7714 | Liu, Yimeng , Lu, Dan , Sui, Shaobo et al. Large-Scale Network Lifetime Inference Based on Universal Scaling Function [J]. | IEEE INTERNET OF THINGS JOURNAL , 2024 , 11 (13) : 23123-23139 . |
| MLA | Liu, Yimeng et al. "Large-Scale Network Lifetime Inference Based on Universal Scaling Function" . | IEEE INTERNET OF THINGS JOURNAL 11 . 13 (2024) : 23123-23139 . |
| APA | Liu, Yimeng , Lu, Dan , Sui, Shaobo , Peng, Rui , Li, Jihong , Bai, Mingyang et al. Large-Scale Network Lifetime Inference Based on Universal Scaling Function . | IEEE INTERNET OF THINGS JOURNAL , 2024 , 11 (13) , 23123-23139 . |
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摘要 ：
Many production systems undergo a multistate deterioration process before failure, during which inspection and repair are used to detect and remove the defects. Given the limitations of technology and random noise, inspection and repair are always imperfect. This study considered imperfect inspection and repair for a system subject to a three-stage degradation process. The concepts of virtual age and the improvement factor were adopted to characterize the imperfect repair effect. To verify the effectiveness of the proposed model, we applied it to the case of a steel converter plant and used the genetic algorithm to search for the optimal solution. The numerical results indicated that an optimal arrangement of inspection policy could significantly reduce maintenance costs.
关键词 ：
imperfect repair imperfect repair Maintenance Maintenance Steel Steel Costs Costs Inspection Inspection Mathematical models Mathematical models Maintenance engineering Maintenance engineering Delay-time Delay-time Density functional theory Density functional theory imperfect inspection imperfect inspection maintenance maintenance
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| GB/T 7714 | Tang, Xia , Xiao, Hui , Kou, Gang et al. Optimal Inspection Policy for a Three-Stage System With Imperfect Inspection and Repair [J]. | IEEE TRANSACTIONS ON RELIABILITY , 2024 , 73 (3) : 1669-1683 . |
| MLA | Tang, Xia et al. "Optimal Inspection Policy for a Three-Stage System With Imperfect Inspection and Repair" . | IEEE TRANSACTIONS ON RELIABILITY 73 . 3 (2024) : 1669-1683 . |
| APA | Tang, Xia , Xiao, Hui , Kou, Gang , Peng, Rui . Optimal Inspection Policy for a Three-Stage System With Imperfect Inspection and Repair . | IEEE TRANSACTIONS ON RELIABILITY , 2024 , 73 (3) , 1669-1683 . |
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摘要 ：
With the emergence of the industrial internet of things, distributed data storage systems have become widely used to store the monitoring data of power generation systems. Malicious hackers often try to destroy or steal these confidential data by illegally invading the systems. In addition to hackers' illegal intrusions, the availability of the data stored is also affected by the internal failures of the system. In this research, two reliability models are formulated to study the reliability of a phased-mission distributed data storage system considering internal failures and illegal intrusion. The first model considers internal failures and data destruction, whereas the second model further considers data theft. Furthermore, the allocation of the data partitions is optimized so that system reliability can be maximized. Numerical experiments demonstrate the effectiveness of the proposed models and algorithms.
关键词 ：
Buffer storage Buffer storage Computer hacking Computer hacking Computer security Computer security Reliability Reliability dynamic reliability assessment dynamic reliability assessment multistate system multistate system phased-mission system (PMS) phased-mission system (PMS) external impacts external impacts Data security Data security Computational modeling Computational modeling Numerical models Numerical models Distributed databases Distributed databases
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| GB/T 7714 | Kou, Gang , Yi, Kunxiang , Xiao, Hui et al. Reliability of a Distributed Data Storage System Considering the External Impacts [J]. | IEEE TRANSACTIONS ON RELIABILITY , 2022 , 72 (1) : 3-14 . |
| MLA | Kou, Gang et al. "Reliability of a Distributed Data Storage System Considering the External Impacts" . | IEEE TRANSACTIONS ON RELIABILITY 72 . 1 (2022) : 3-14 . |
| APA | Kou, Gang , Yi, Kunxiang , Xiao, Hui , Peng, Rui . Reliability of a Distributed Data Storage System Considering the External Impacts . | IEEE TRANSACTIONS ON RELIABILITY , 2022 , 72 (1) , 3-14 . |
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摘要 ：
As the world's largest coal consumer, China's coal consumption in 2021 was 2934.4 million tons of standard coal. Thermal coal occupies an important position in the coal market and industry system, as an important raw material in the power industry, steel industry and other industries. The price of thermal coal in 2021 was at its highest level in a decade, and reached a historical level of about 2587.5 yuan per ton in October 2021. In the same month, the government intervened in the thermal coal price, which fell 51.9% by the end of the year under the influence of the policy. In previous studies, there has been little research on thermal coal and the impact of the variable "policy" on the thermal coal price. Thus, this paper analyzed the factors that affect the price fluctuation of thermal coal, and the impact of economic policy uncertainty on the thermal coal price. The cointegration test and forecast-error variance decomposition (FEVD) are adopted in this study. Our results show that the impact of policy uncertainty on the thermal coal price gradually increases over time, but the impact of policy uncertainty on price is negative and not as strong as expected. On the contrary, inventory and other energy prices have a greater positive impact on the price of thermal coal. The results of this study are of significance for the prediction of thermal coal prices in the future.
关键词 ：
variance decomposition variance decomposition cointegration test cointegration test thermal coal price thermal coal price
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| GB/T 7714 | Zhu, Shiqiu , Chi, Yuanying , Gao, Kaiye et al. Analysis of Influencing Factors of Thermal Coal Price [J]. | ENERGIES , 2022 , 15 (15) . |
| MLA | Zhu, Shiqiu et al. "Analysis of Influencing Factors of Thermal Coal Price" . | ENERGIES 15 . 15 (2022) . |
| APA | Zhu, Shiqiu , Chi, Yuanying , Gao, Kaiye , Chen, Yahui , Peng, Rui . Analysis of Influencing Factors of Thermal Coal Price . | ENERGIES , 2022 , 15 (15) . |
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摘要 ：
实际工程中很多系统的任务都具有多个阶段,且不同阶段的外界环境及系统需求均可能发生变化,而工作元件可在任意阶段发生失效,为系统的可靠性分析与建模带来了挑战.为增加系统的可靠性,一种常用的设计方法是配置备份元件.针对多阶段任务下基于需求的温备份系统可靠性建模问题,首先提出了一种基于多值决策图的方法,其次给出了处于不同状态的元件可靠性计算公式,最后通过算例表明该模型适用于具有多阶段任务需求的温备份系统可靠性分析.
关键词 ：
多阶段任务系统(PMS) 多阶段任务系统(PMS) 温备份元件 温备份元件 多值决策图 多值决策图 系统可靠性 系统可靠性
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| GB/T 7714 | 邱慧 , 闫相斌 , 翟庆庆 et al. 具有多阶段任务需求的温备份系统可靠性分析 [J]. | 中国管理科学 , 2021 , 29 (2) : 99-107 . |
| MLA | 邱慧 et al. "具有多阶段任务需求的温备份系统可靠性分析" . | 中国管理科学 29 . 2 (2021) : 99-107 . |
| APA | 邱慧 , 闫相斌 , 翟庆庆 , 彭锐 . 具有多阶段任务需求的温备份系统可靠性分析 . | 中国管理科学 , 2021 , 29 (2) , 99-107 . |
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| GB/T 7714 | Peng, Rui . Cutting edge researches on reliability evaluation and risk management [J]. | Recent Patents on Engineering , 2021 , 15 (1) : 2 . |
| MLA | Peng, Rui . "Cutting edge researches on reliability evaluation and risk management" . | Recent Patents on Engineering 15 . 1 (2021) : 2 . |
| APA | Peng, Rui . Cutting edge researches on reliability evaluation and risk management . | Recent Patents on Engineering , 2021 , 15 (1) , 2 . |
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摘要 ：
Background: With the rapid development of computer and Internet technologies, the measurement of software reliability has become a key point. Software reliability modeling is an important way to measure software reliability. However, there are many disadvantages in the classic model. Therefore, this paper reviews current researches in software reliability and discusses ways to improve the model from a new perspective. Objective: This paper reviews the current researches on software reliability, analyzes the existing patented technology, and points out some future directions to improve the current models to provide a more accurate and efficient way for software reliability measurement. Methods: This study introduces the general methods of software reliability evaluation, analyzes the disadvantages of these methods in practical application, draws lessons from the patent, and puts forward some new ideas to solve the problems. Results: Disadvantages of current researches are identified based on literature review. In addition, two suggestions are given to improve the current models. Conclusion: Although the software reliability has made great progress, there are still many things to be studied in the future. The problems of software reliability in real life should be gradually solved. © 2021 Bentham Science Publishers.
关键词 ：
Application programs Application programs Software reliability Software reliability Patents and inventions Patents and inventions
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| GB/T 7714 | Li, Yingchun , Gao, Kaiye , Peng, Rui . Recent researches and technologies on software reliability evaluation [J]. | Recent Patents on Engineering , 2021 , 15 (1) : 92-100 . |
| MLA | Li, Yingchun et al. "Recent researches and technologies on software reliability evaluation" . | Recent Patents on Engineering 15 . 1 (2021) : 92-100 . |
| APA | Li, Yingchun , Gao, Kaiye , Peng, Rui . Recent researches and technologies on software reliability evaluation . | Recent Patents on Engineering , 2021 , 15 (1) , 92-100 . |
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摘要 ：
具有多阶段任务需求的温备份系统可靠性分析
关键词 ：
多值决策图 多值决策图 温备份元件 温备份元件 系统可靠性 系统可靠性 多阶段任务系统(PMS) 多阶段任务系统(PMS)
引用：
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| GB/T 7714 | 邱慧 , 闫相斌 , 翟庆庆 et al. 具有多阶段任务需求的温备份系统可靠性分析 [J]. | 邱慧 , 2021 , 29 (2) : 99-107 . |
| MLA | 邱慧 et al. "具有多阶段任务需求的温备份系统可靠性分析" . | 邱慧 29 . 2 (2021) : 99-107 . |
| APA | 邱慧 , 闫相斌 , 翟庆庆 , 彭锐 , 中国管理科学 . 具有多阶段任务需求的温备份系统可靠性分析 . | 邱慧 , 2021 , 29 (2) , 99-107 . |
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摘要 ：
Linear multistate consecutively connected systems (LMCCSs) have been widely applied in telecommunications. An LMCCS usually has several nodes arranged in sequence along a line, where connecting elements (CEs) are deployed at each node to provide connections to the following nodes. Many researchers have studied the reliability modeling and optimization of LMCCSs. However, most of the existing works on LMCCSs have focused on the uncertainty in connection ranges of CEs; none of them have considered signal loss during the transmission. In practice, a signal emitted from a node may neither completely reach nor completely not reach the destination node. In other words, only a fraction of the signal may reach the destination node whereas the rest is lost. This article makes new contributions by proposing a model that evaluates the expected signal fraction receivable by the sink node in an LMCCS subject to signal loss. Moreover, we solve the optimal design policy problem, which co-determines CEs allocation and nodes building to minimize the system cost while meeting certain constraints on system reliability and expected receivable signal fraction. Three examples are provided to illustrate the proposed model.
关键词 ：
Costs Costs Economics Economics expected receivable signal fraction expected receivable signal fraction linear multistate consecutively connected system (LMCCS) linear multistate consecutively connected system (LMCCS) Propagation losses Propagation losses Random variables Random variables reliability reliability Reliability Reliability Resource management Resource management signal loss signal loss Silicon Silicon Telecommunications Telecommunications universal generating function (UGF) universal generating function (UGF)
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| GB/T 7714 | Gao, Kaiye , Yan, Xiangbin , Peng, Rui et al. Economic Design of a Linear Consecutively Connected System Considering Cost and Signal Loss [J]. | IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS , 2021 , 51 (8) : 5116-5128 . |
| MLA | Gao, Kaiye et al. "Economic Design of a Linear Consecutively Connected System Considering Cost and Signal Loss" . | IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS 51 . 8 (2021) : 5116-5128 . |
| APA | Gao, Kaiye , Yan, Xiangbin , Peng, Rui , Xing, Liudong . Economic Design of a Linear Consecutively Connected System Considering Cost and Signal Loss . | IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS , 2021 , 51 (8) , 5116-5128 . |
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摘要 ：
Advanced asset management emphasizes the collaborative schemes of maintenance and spare part resources driven by asset health status. This paper formulates a joint optimization model of maintenance-spare part provisioning policy for a production system with observable defect information and postponed spare part supplies. Three levels of state-based maintenance windows, (a) regular inspection window (RIW); (b) defect removal window (DRW), and (c) pre-specified overhaul window (POW) are integrated to promote the timeliness and robustness of maintenance decision-makings, and mitigate production downtime due to spare part delays. In particular, a spare part order is induced upon defect identifications at DRW and the system continues production until being replaced as soon as the order arrives at the maintenance base, or being renewed at POW when the system attains a specified age. As such, spare part replacement is delayed, so as to leave enough time for resource preparation, and prolong the remaining useful lifetime. The system net profit is maximized through the interval optimization of RIW and DRW. A numerical experiment on maintenance engineering of a steel convertor plant is used to demonstrate the proposed methodology.
关键词 ：
Production systems Production systems Multi-window maintenance Multi-window maintenance Spare part provisioning policy Spare part provisioning policy Delay-time Delay-time
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| GB/T 7714 | Wang, Jingjing , Yang, Li , Ma, Xiaobing et al. Joint optimization of multi-window maintenance and spare part provisioning policies for production systems [J]. | RELIABILITY ENGINEERING & SYSTEM SAFETY , 2021 , 216 . |
| MLA | Wang, Jingjing et al. "Joint optimization of multi-window maintenance and spare part provisioning policies for production systems" . | RELIABILITY ENGINEERING & SYSTEM SAFETY 216 (2021) . |
| APA | Wang, Jingjing , Yang, Li , Ma, Xiaobing , Peng, Rui . Joint optimization of multi-window maintenance and spare part provisioning policies for production systems . | RELIABILITY ENGINEERING & SYSTEM SAFETY , 2021 , 216 . |
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