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Prof. Dr. Jian Jiao
Beihang University Beijing China

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0 Reliability
0 Risk Analysis
0 Safety
0 Reliability and Failure Analysis
0 safety accident analysis

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Journal article
Published: 15 April 2021 in Applied Sciences
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In recent years, the model-based safety analysis (MBSA) has been developing continuously. The Functional Failure Identification and Propagation (FFIP) method is a graphics processing technology which supports the analysis of fault propagation paths before making costly design commitments. However, the traditional FFIP has some deficiencies. In this paper, we extend the functional failure logic (FFL) in the FFIP and introduce the concept of deviation. So, FFIP can be used to analyze the failure process of the systems and make the logical analysis of functional failure easier. Based on the extended FFL, we present a new overview of the FFIP. The FFIP is improved by using mathematical logic and Systems Modeling Language (SysML). The standard expression of FFL is realized, which is conducive to the subsequent modeling and modification. Additionally, we use the failure logic analysis in the FFIP to improve the state machine diagram (SMD) in SysML. Finally, the improved FFIP method is used to analyze the fault propagation paths of the system and Simulink is used for simulation. The fault tree is generated according to the simulation results, the minimum cut set is calculated, and the key failure parts of the system are obtained.

ACS Style

Jian Jiao; Shujie Pang; Jiayun Chu; Yongfeng Jing; Tingdi Zhao. An Improved FFIP Method Based on Mathematical Logic and SysML. Applied Sciences 2021, 11, 3534 .

AMA Style

Jian Jiao, Shujie Pang, Jiayun Chu, Yongfeng Jing, Tingdi Zhao. An Improved FFIP Method Based on Mathematical Logic and SysML. Applied Sciences. 2021; 11 (8):3534.

Chicago/Turabian Style

Jian Jiao; Shujie Pang; Jiayun Chu; Yongfeng Jing; Tingdi Zhao. 2021. "An Improved FFIP Method Based on Mathematical Logic and SysML." Applied Sciences 11, no. 8: 3534.

Journal article
Published: 22 October 2020 in Applied Sciences
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ISO26262: 2018 is an international functional safety standard for electrical and/or electronic (E/E) systems within road vehicles. It provides appropriate safety requirements for road vehicles to avoid unreasonable residual risk according to automotive safety integrity levels (ASILs) derived from hazard analysis and risk assessment (HARA) required in the ISO26262 concept phase. Systems theoretic process analysis (STPA) seems to be designed specifically to deal with hazard analysis of modern complex systems, but it does not include risk evaluation required by most safety related international standards. So we integrated STPA into Failure Mode and Effect Analysis (FMEA) template to form a new method called system theoretic process analysis based on an FMEA template, STPAFT for shot, which could not only meet all the requirements of the concept phase in ISO26262, but also make full use of the advantages of the two methods. Through the focus of FMEA on low-level components, STPAFT can obtain more detailed causal factors (CFs), which is very helpful for derivation of safety goals (SGs) and the functional safety requirements (FSRs) in the concept phase of ISO26262. The application of STPAFT is described by the case study of fuel level estimation and display system (FLEDS) to show how the concept phase of ISO26262 could be supported by STPAFT.

ACS Style

Lei Chen; Jian Jiao; Tingdi Zhao. A Novel Hazard Analysis and Risk Assessment Approach for Road Vehicle Functional Safety through Integrating STPA with FMEA. Applied Sciences 2020, 10, 7400 .

AMA Style

Lei Chen, Jian Jiao, Tingdi Zhao. A Novel Hazard Analysis and Risk Assessment Approach for Road Vehicle Functional Safety through Integrating STPA with FMEA. Applied Sciences. 2020; 10 (21):7400.

Chicago/Turabian Style

Lei Chen; Jian Jiao; Tingdi Zhao. 2020. "A Novel Hazard Analysis and Risk Assessment Approach for Road Vehicle Functional Safety through Integrating STPA with FMEA." Applied Sciences 10, no. 21: 7400.

Research article
Published: 07 July 2020 in Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture
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In recent years, system of systems resilience has been widely studied. System of systems has obvious resilience properties when considering dynamic reconfiguration in the following four parts: avoidance, survival, adaption and recovery. System of systems can be downgraded and recovered by reconfiguring resources to keep the performance output enough to satisfy the threshold under internal failure or external shocks. In other words, because of dynamic reconfiguration, system of systems has obvious characteristics of resilience. In this study, first, a new resilience model for systems and system of systems based on the performance threshold is proposed. Second, military system of systems is decomposed hierarchically, including system of systems–level, platform-level and system-level top-down, respectively. Third, a radar network of military system of systems is taken as a typical case. A performance model for a radar network under internal or external shocks is established based on the linear-Gauss-Poisson process in system of systems, and its parameters are discussed in detail. Finally, a typical 5-node radar network of formation air defense military system of systems is taken as an example to demonstrate proposed models and methods. The reliability and resilience loss are achieved by considering internal failure or external shocks, which can serve as a reference for evaluating and improving the effectiveness of system of systems.

ACS Style

Zhiwei Chen; Tingdi Zhao; Jian Jiao; Jiayun Chu. Performance-threshold-based resilience analysis of system of systems by considering dynamic reconfiguration. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 2020, 1 .

AMA Style

Zhiwei Chen, Tingdi Zhao, Jian Jiao, Jiayun Chu. Performance-threshold-based resilience analysis of system of systems by considering dynamic reconfiguration. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture. 2020; ():1.

Chicago/Turabian Style

Zhiwei Chen; Tingdi Zhao; Jian Jiao; Jiayun Chu. 2020. "Performance-threshold-based resilience analysis of system of systems by considering dynamic reconfiguration." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture , no. : 1.

Journal article
Published: 26 May 2020 in IEEE Systems Journal
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Integrated modular avionics architecture has become the most attractive idea to enhance system capability as well as improve efficiency. However, this architecture makes designing a system configuration scheme difficult because multiple resources are shared to support different functions that may have been irrelevant before. This article introduces a method to optimize the configuration scheme for an integrated modular avionics system while considering functional redundancy requirements. Not only the allocation scheme, which illustrates the relationships between functions and shared resources is taken into account, but also the resource scheme, which illustrates how many shared resources are enough to cover the functional requirements is considered as a part of the configuration scheme. Toward a generic integrated modular avionics system with functional redundancy requirements, we first give a configuration scheme model as well as its related schedulability and reliability constraints. Then, the optimization process of the configuration scheme is formalized as a combination of a constraint satisfaction problem and a constraint optimization problem. Specifically, it is decomposed into two steps including: 1) finding a resource scheme which has the lowest cost but still satisfies the constraints based on a forward checking algorithm; 2) finding its corresponding allocation scheme which distributes the targeted functions to different resources as evenly and low-coupled as possible based on the NSGA-II algorithm. Finally, an example is used to prove the effectiveness of the method. The optimization method can serve as a guide to design a configuration scheme for the integrated modular avionics system.

ACS Style

Jiayun Chu; Tingdi Zhao; Jian Jiao; Zhiwei Chen. Optimal Design of Configuration Scheme for Integrated Modular Avionics Systems With Functional Redundancy Requirements. IEEE Systems Journal 2020, 15, 2665 -2676.

AMA Style

Jiayun Chu, Tingdi Zhao, Jian Jiao, Zhiwei Chen. Optimal Design of Configuration Scheme for Integrated Modular Avionics Systems With Functional Redundancy Requirements. IEEE Systems Journal. 2020; 15 (2):2665-2676.

Chicago/Turabian Style

Jiayun Chu; Tingdi Zhao; Jian Jiao; Zhiwei Chen. 2020. "Optimal Design of Configuration Scheme for Integrated Modular Avionics Systems With Functional Redundancy Requirements." IEEE Systems Journal 15, no. 2: 2665-2676.

Journal article
Published: 31 December 2019 in Applied Sciences
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With the developing of high integrations in large scale systems, such as aircraft and other industrial systems, there are new challenges in safety analysis due to the complexity of the mission process and the more complicated coupling characteristic of multi-factors. Aiming at the evaluation of coupled factors as well as the risk of the mission, this paper proposes a combined technology based on the Decision Making Trial and Evaluation Laboratory (DEMATEL) model and the Bayesian network (BN). After identifying and classifying the risk factors from the perspectives of humans, machines, the environment, and management, the DEMATEL technique is adopted to assess their direct and/or indirect coupling relationships to determine the importance and causality of each factor; moreover, the relationship matrix in the DEMATEL model is used to generate the BN model, including its parameterization. The inverse reasoning theory is then implemented to derive the probability, and the risk of the coupled factors is evaluated by an assessment model integrating the probability and severity. Furthermore, the key risk factors are identified based on the risk radar diagram and the Pareto rule to support the preventive measurements. Finally, an application of the take-off process of aircraft is provided to demonstrate the proposed method.

ACS Style

Jian Jiao; Mengwei Wei; Yuan Yuan; And Tingdi Zhao. Risk Quantification and Analysis of Coupled Factors Based on the DEMATEL Model and a Bayesian Network. Applied Sciences 2019, 10, 317 .

AMA Style

Jian Jiao, Mengwei Wei, Yuan Yuan, And Tingdi Zhao. Risk Quantification and Analysis of Coupled Factors Based on the DEMATEL Model and a Bayesian Network. Applied Sciences. 2019; 10 (1):317.

Chicago/Turabian Style

Jian Jiao; Mengwei Wei; Yuan Yuan; And Tingdi Zhao. 2019. "Risk Quantification and Analysis of Coupled Factors Based on the DEMATEL Model and a Bayesian Network." Applied Sciences 10, no. 1: 317.

Journal article
Published: 16 December 2019 in Applied Sciences
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Based on power adding technology, the linear transformer driver (LTD) scheme is widely used to generate high-energy pulsed outputs and adopts a hierarchical and modular structure. Although robust design and fault analysis for basic components have been conducted recently, there is still a lack of enough reliability analysis studies of the whole system. Taking an actual LTD system as an object, this paper presents a system reliability model based on a load-sharing mechanism. A unified load-sharing rule structure is established and four typical rules corresponding to equal, linear, exponential, and local-equal relationships are discussed in detail while evaluating the impact of the load-sharing mechanism. Subsequently, simulation experiments are performed to illustrate the effects of different load-sharing rules as well as analyzing the system reliability in which we simultaneously propose a self-adaptive Monte Carlo simulation flow to achieve the sampling probability adjustment according to the random failure sequence. The simulation results can serve as a suggestion for further improvement of the system reliability. Moreover, the model framework and the simulation analysis method described here are universal and can be applied to evaluate the reliability of other LTD-based systems with tiny modifications.

ACS Style

Jiayun Chu; Tingdi Zhao; Jian Jiao; Zhiwei Chen; Fuchun Ren. Reliability Modelling and Evaluation for LTD System Based on Load-Sharing Model. Applied Sciences 2019, 9, 5528 .

AMA Style

Jiayun Chu, Tingdi Zhao, Jian Jiao, Zhiwei Chen, Fuchun Ren. Reliability Modelling and Evaluation for LTD System Based on Load-Sharing Model. Applied Sciences. 2019; 9 (24):5528.

Chicago/Turabian Style

Jiayun Chu; Tingdi Zhao; Jian Jiao; Zhiwei Chen; Fuchun Ren. 2019. "Reliability Modelling and Evaluation for LTD System Based on Load-Sharing Model." Applied Sciences 9, no. 24: 5528.

Journal article
Published: 03 June 2019 in Engineering Failure Analysis
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It is difficult to obtain the failure data of actual prototype to support reliability analysis because the development stage has been shortened drastically and the traditional reliability tests are gradually unaffordable under the market pressure. In this paper, a reliability simulation based on physics of failure is proposed to test the reliability of a CPU circuit board, in which the digital model of the circuit board, Computational Fluid Dynamics (CFD) method and Finite Element Analysis (FEA) are used synthetically to perform the analysis. The failure points of the circuit board are analyzed and the failure distribution is obtained by fitting the simulation data, so the life can be predicted by Monte Carlo simulation. Moreover, some improvement measures and suggestions can be supplied based on the failure mechanism of the circuit board to improve its inherent reliability. Comparing with the traditional methods, the method of reliability simulation prediction based on physics of failure has the advantages of fast, accurate, economical, efficient and can identify more detailed failure information.

ACS Style

Jian Jiao; Xinlin De; Zhiwei Chen; Tingdi Zhao. Integrated circuit failure analysis and reliability prediction based on physics of failure. Engineering Failure Analysis 2019, 104, 714 -726.

AMA Style

Jian Jiao, Xinlin De, Zhiwei Chen, Tingdi Zhao. Integrated circuit failure analysis and reliability prediction based on physics of failure. Engineering Failure Analysis. 2019; 104 ():714-726.

Chicago/Turabian Style

Jian Jiao; Xinlin De; Zhiwei Chen; Tingdi Zhao. 2019. "Integrated circuit failure analysis and reliability prediction based on physics of failure." Engineering Failure Analysis 104, no. : 714-726.

Journal article
Published: 11 April 2019 in Engineering Failure Analysis
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Epoxy resin adhesive is widely used for equipment connection and sealing in the aerospace industry. The performance degradation of epoxy resin adhesive has a significant impact on the reliability and safety of products, so it is important to predict its lifetime under the performance requirements. Due to the slow degradation speed in the normal or working environment, accelerated degradation test is an important way to study the lifetime of epoxy resin adhesive. However, restrained by the actual test time and cost, the amount of test data is often very few which makes the statistics and assessment difficult. This paper studies the whole process of lifetime prediction of epoxy adhesives, including accelerated degradation test scheme, degradation path model construction, and test data processing. In particular, this paper focuses on the construction of the degradation path model and the processing method of small sample test data. The proposed three-variate degenerate path model and the data processing method combined with BP neural network can effectively improve and supplement the classical epoxy adhesive life prediction.

ACS Style

Yipeng Zhu; Tingdi Zhao; Jian Jiao; Zhiwei Chen. The lifetime prediction of epoxy resin adhesive based on small-sample data. Engineering Failure Analysis 2019, 102, 111 -122.

AMA Style

Yipeng Zhu, Tingdi Zhao, Jian Jiao, Zhiwei Chen. The lifetime prediction of epoxy resin adhesive based on small-sample data. Engineering Failure Analysis. 2019; 102 ():111-122.

Chicago/Turabian Style

Yipeng Zhu; Tingdi Zhao; Jian Jiao; Zhiwei Chen. 2019. "The lifetime prediction of epoxy resin adhesive based on small-sample data." Engineering Failure Analysis 102, no. : 111-122.

Journal article
Published: 16 March 2019 in Journal of Intelligent & Fuzzy Systems
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ACS Style

Huan Wu; Tingdi Zhao; Jian Jiao; Zhiwei Chen. XML-based modeling method of phased-mission systems subject to probabilistic common cause failures. Journal of Intelligent & Fuzzy Systems 2019, 36, 871 -884.

AMA Style

Huan Wu, Tingdi Zhao, Jian Jiao, Zhiwei Chen. XML-based modeling method of phased-mission systems subject to probabilistic common cause failures. Journal of Intelligent & Fuzzy Systems. 2019; 36 (2):871-884.

Chicago/Turabian Style

Huan Wu; Tingdi Zhao; Jian Jiao; Zhiwei Chen. 2019. "XML-based modeling method of phased-mission systems subject to probabilistic common cause failures." Journal of Intelligent & Fuzzy Systems 36, no. 2: 871-884.

Conference paper
Published: 01 January 2019 in Proceedings of the 29th European Safety and Reliability Conference (ESREL)
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ACS Style

Chu Jiayun; Zhao Tingdi; Jiao Jian. Risk Analysis and Trade-off Design Method Based on Dempster-Shafer Evidence Theory Oriented for Multi-Source Information System. Proceedings of the 29th European Safety and Reliability Conference (ESREL) 2019, 1 .

AMA Style

Chu Jiayun, Zhao Tingdi, Jiao Jian. Risk Analysis and Trade-off Design Method Based on Dempster-Shafer Evidence Theory Oriented for Multi-Source Information System. Proceedings of the 29th European Safety and Reliability Conference (ESREL). 2019; ():1.

Chicago/Turabian Style

Chu Jiayun; Zhao Tingdi; Jiao Jian. 2019. "Risk Analysis and Trade-off Design Method Based on Dempster-Shafer Evidence Theory Oriented for Multi-Source Information System." Proceedings of the 29th European Safety and Reliability Conference (ESREL) , no. : 1.

Journal article
Published: 17 August 2018 in IEEE Access
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As one of the most typical multistate systems, weighted $k$ -out-of- ${n}$ system has been extensively studied in recent years. This paper presents a new kind of multistate weighted ${k}$ -out-of- ${n}$ system, which simultaneously considers performance requirements of each component and the system performance (cumulative performance threshold of all components). Then, we establish a new dynamic availability model by combining the Markov process and universal generating function. Moreover, an optimal design is proposed to achieve a tradeoff between system reliability/availability and cost. Non-dominated sorting genetic algorithm-II is used to optimize the probability and performance of components in different states. Finally, an example is illustrated to evaluate system availability and optimize component design. The optimization design can be referred as an optimal standard in system update.

ACS Style

Zhiwei Chen; Tingdi Zhao; Jian Jiao; Fuchun Ren. Availability Analysis and Optimal Design of Multistate Weighted ${k}$ -Out-of- ${n}$ Systems With Component Performance Requirements. IEEE Access 2018, 6, 51547 -51555.

AMA Style

Zhiwei Chen, Tingdi Zhao, Jian Jiao, Fuchun Ren. Availability Analysis and Optimal Design of Multistate Weighted ${k}$ -Out-of- ${n}$ Systems With Component Performance Requirements. IEEE Access. 2018; 6 ():51547-51555.

Chicago/Turabian Style

Zhiwei Chen; Tingdi Zhao; Jian Jiao; Fuchun Ren. 2018. "Availability Analysis and Optimal Design of Multistate Weighted ${k}$ -Out-of- ${n}$ Systems With Component Performance Requirements." IEEE Access 6, no. : 51547-51555.

Conference paper
Published: 25 May 2018 in MATEC Web of Conferences
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Human reliability has been a focus in system reliability and safety researches since 1960s, and now human factor has become an increasingly important reason which affects system reliability. Numerical control machining system characterized by man-machine interaction can be applied to automatic parts machining with high efficiency. However, professional and technical staffs are still needed for clamping, positioning, inspection and others. So there is no doubt that the quality of the parts might be influenced by personnel behaviour. What’s more, on-site staff is responsible for handling potential fault directly. The study on human error plays an important role to ensure the quality and reduce industrial accident. Holistic Decision Tree (HDT) is a dynamic Human Reliability Analysis (HRA) method, emphasizing the wholeness of man-machine interaction. This paper tries to use an optimized HDT method to investigate human reliability in numerical control machining system. In order to obtain a rational order of the importance of each IF, this paper incorporates entropy weight method to the conventional expert method to determine the relative weight value of each human behaviour influence factor (IF), and finally calculates the human error probability (HEP).

ACS Style

Lu Chen; Run-Jiang Zhao; Jian Jiao; Yan-Bo Zhang. Human reliability research of numerical control machining based on optimized Holistic Decision Tree. MATEC Web of Conferences 2018, 169, 01030 .

AMA Style

Lu Chen, Run-Jiang Zhao, Jian Jiao, Yan-Bo Zhang. Human reliability research of numerical control machining based on optimized Holistic Decision Tree. MATEC Web of Conferences. 2018; 169 ():01030.

Chicago/Turabian Style

Lu Chen; Run-Jiang Zhao; Jian Jiao; Yan-Bo Zhang. 2018. "Human reliability research of numerical control machining based on optimized Holistic Decision Tree." MATEC Web of Conferences 169, no. : 01030.

Proceedings article
Published: 01 January 2018 in 2018 Annual Reliability and Maintainability Symposium (RAMS)
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In this paper, we focus on the risk of System of Systems (SoS) considering multistate feature. The concept of SoS, the concept of risk of SoS, and the expression of multistate feature in SoS are discussed. Based on these conclusions, the risk assessment model is proposed by using the Markov chain and the universal generating function. In the end, a satellites constellation case is used to illustrate the methodological framework.

ACS Style

Yipeng Zhu; Jian Jiao; Xinlin De; Tingdi Zhao. The Risk Assessment of System of Systems Considering Multistate Feature - A Case Study on Constellation. 2018 Annual Reliability and Maintainability Symposium (RAMS) 2018, 1 -7.

AMA Style

Yipeng Zhu, Jian Jiao, Xinlin De, Tingdi Zhao. The Risk Assessment of System of Systems Considering Multistate Feature - A Case Study on Constellation. 2018 Annual Reliability and Maintainability Symposium (RAMS). 2018; ():1-7.

Chicago/Turabian Style

Yipeng Zhu; Jian Jiao; Xinlin De; Tingdi Zhao. 2018. "The Risk Assessment of System of Systems Considering Multistate Feature - A Case Study on Constellation." 2018 Annual Reliability and Maintainability Symposium (RAMS) , no. : 1-7.

Journal article
Published: 01 December 2017 in Engineering Failure Analysis
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ACS Style

Lu Chen; Jian Jiao; Qianxin Wei; Tingdi Zhao. An improved formal failure analysis approach for safety-critical system based on MBSA. Engineering Failure Analysis 2017, 82, 713 -725.

AMA Style

Lu Chen, Jian Jiao, Qianxin Wei, Tingdi Zhao. An improved formal failure analysis approach for safety-critical system based on MBSA. Engineering Failure Analysis. 2017; 82 ():713-725.

Chicago/Turabian Style

Lu Chen; Jian Jiao; Qianxin Wei; Tingdi Zhao. 2017. "An improved formal failure analysis approach for safety-critical system based on MBSA." Engineering Failure Analysis 82, no. : 713-725.

Journal article
Published: 01 December 2017 in Engineering Failure Analysis
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ACS Style

Qianxin Wei; Jian Jiao; Tingdi Zhao. Flight control system failure modeling and verification based on SPIN. Engineering Failure Analysis 2017, 82, 501 -513.

AMA Style

Qianxin Wei, Jian Jiao, Tingdi Zhao. Flight control system failure modeling and verification based on SPIN. Engineering Failure Analysis. 2017; 82 ():501-513.

Chicago/Turabian Style

Qianxin Wei; Jian Jiao; Tingdi Zhao. 2017. "Flight control system failure modeling and verification based on SPIN." Engineering Failure Analysis 82, no. : 501-513.

Journal article
Published: 21 September 2017 in IEEE Access
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Most traditional engineered systems are designed with a passive and fixed reliability capability and just required to achieve a possibly low level of failure occurrence. However, as the complexity at spatial-temporal scales and integrations increases, modern complex engineered systems (CESs) are facing new challenges of inherent risk and bottleneck for a successful and safe operation through the system life cycle when potential expected or unexpected disruptive events happen. As a prototype for ensuring the successful operation of inherently risky systems, resilience has demonstrated itself to be a promising concept to address the above-mentioned challenges. A standard multi-dimensional resilience triangle model is firstly presented based on the concept of the three-phase system resilience cycle, which can provide a theoretical foundation for indicating the utility objectives of resilience design. Then, the resilience design problem for CESs is proposed as a multi-objective optimization model, in which the three objectives are to maximize the survival probability, to maximize the reactive timeliness and to minimize the total budgeted cost. Further, the proposed multi-objective optimization programming is solved based on the efficient multi-objective evolutionary algorithm NSGA-II. Finally, the effectiveness of the proposed models and solving procedure is illustrated with an engineered electro-hydrostatic aircraft control actuator (EHA) resilience design problem, a comparative analysis on the case study is also carried out with respect to previous works. This work can provide an effective tradeoff foundation to improve the resilience of CESs.

ACS Style

Fuchun Ren; Tingdi Zhao; Jian Jiao; Yuqing Hu. Resilience Optimization for Complex Engineered Systems Based on the Multi-Dimensional Resilience Concept. IEEE Access 2017, 5, 19352 -19362.

AMA Style

Fuchun Ren, Tingdi Zhao, Jian Jiao, Yuqing Hu. Resilience Optimization for Complex Engineered Systems Based on the Multi-Dimensional Resilience Concept. IEEE Access. 2017; 5 (99):19352-19362.

Chicago/Turabian Style

Fuchun Ren; Tingdi Zhao; Jian Jiao; Yuqing Hu. 2017. "Resilience Optimization for Complex Engineered Systems Based on the Multi-Dimensional Resilience Concept." IEEE Access 5, no. 99: 19352-19362.

Journal article
Published: 23 May 2017 in DEStech Transactions on Engineering and Technology Research
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Integral composite fuel tank refers to that the main key parts or the all force components are made of composite and participate in the whole force acting on the wing. Fully comprehensive utilization of the wing structure can be made by the use of integral fuel tank structure. And the weight could be reduced drastically by the use of composite. Although the composite material has so many advantages, it has a lower conductivity compared with metal which can easily cause the accumulation of electrostatic charges and may lead to fire or explosion as a result of that. So, the design and assessment of electrostatic safety of the integral composite fuel tank seem to be a so important task that even the airworthiness regulations have made requests. In this paper, the background of the fuel tank electrostatic safety had been illustrated, and the necessity of the assessment of such kind of tank had been demonstrated. At last, the test items and assessment ways had been discussed.

ACS Style

Lei Chen; Tingdi Zhao; Jian Jiao. The Electrostatic Safety Assessment Methods for Integrated Composite Fuel Tank Based on the Airworthiness Verification. DEStech Transactions on Engineering and Technology Research 2017, 1 .

AMA Style

Lei Chen, Tingdi Zhao, Jian Jiao. The Electrostatic Safety Assessment Methods for Integrated Composite Fuel Tank Based on the Airworthiness Verification. DEStech Transactions on Engineering and Technology Research. 2017; (mimece):1.

Chicago/Turabian Style

Lei Chen; Tingdi Zhao; Jian Jiao. 2017. "The Electrostatic Safety Assessment Methods for Integrated Composite Fuel Tank Based on the Airworthiness Verification." DEStech Transactions on Engineering and Technology Research , no. mimece: 1.

Conference paper
Published: 01 January 2017 in Proceedings of the 2017 International Conference on Applied Mathematics, Modeling and Simulation (AMMS 2017)
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ACS Style

Fuchun Ren; Jian Jiao; Zihan Zhang; Tingdi Zhao. A Resilience Engineering Based Analysis Framework for Network Systems. Proceedings of the 2017 International Conference on Applied Mathematics, Modeling and Simulation (AMMS 2017) 2017, 1 .

AMA Style

Fuchun Ren, Jian Jiao, Zihan Zhang, Tingdi Zhao. A Resilience Engineering Based Analysis Framework for Network Systems. Proceedings of the 2017 International Conference on Applied Mathematics, Modeling and Simulation (AMMS 2017). 2017; ():1.

Chicago/Turabian Style

Fuchun Ren; Jian Jiao; Zihan Zhang; Tingdi Zhao. 2017. "A Resilience Engineering Based Analysis Framework for Network Systems." Proceedings of the 2017 International Conference on Applied Mathematics, Modeling and Simulation (AMMS 2017) , no. : 1.

Research article
Published: 06 July 2015 in Journal of International Medical Research
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Objective To measure levels of microRNA (miR)-21 and its target gene, programmed cell death 4 ( PDCD4), in samples of human cutaneous malignant melanoma and normal non-malignant control skin. Methods Relative levels of miR-21 and PDCD4 mRNA were measured using a quantitative real-time reverse transcription–polymerase chain reaction. Correlations between the levels of the two molecules and the clinicopathological characteristics of malignant melanoma were analysed. Results A total of 67 cases of human cutaneous malignant melanoma were analysed and compared with 67 samples of normal nonmalignant control skin. Compared with normal skin samples, the relative level of miR-21 was significantly higher and the relative level of PDCD4 mRNA was significantly lower in the melanoma specimens. A significant negative correlation between PDCD4 mRNA and miR-21 was demonstrated in malignant melanoma ( r = −0.602). Elevated miR-21 and reduced PDCD4 mRNA levels were both significantly correlated with increased tumour size, a higher Clark classification level and the presence of lymph node metastases in malignant melanoma. Conclusions These findings suggest that miR-21 and PDCD4 might be potential biomarkers for malignant melanoma and might provide treatment targets in the future.

ACS Style

Jian Jiao; Yu Fan; Yan Zhang. Expression and clinicopathological significance of microRNA-21 and programmed cell death 4 in malignant melanoma. Journal of International Medical Research 2015, 43, 672 -678.

AMA Style

Jian Jiao, Yu Fan, Yan Zhang. Expression and clinicopathological significance of microRNA-21 and programmed cell death 4 in malignant melanoma. Journal of International Medical Research. 2015; 43 (5):672-678.

Chicago/Turabian Style

Jian Jiao; Yu Fan; Yan Zhang. 2015. "Expression and clinicopathological significance of microRNA-21 and programmed cell death 4 in malignant melanoma." Journal of International Medical Research 43, no. 5: 672-678.

Conference paper
Published: 01 July 2009 in 2009 8th International Conference on Reliability, Maintainability and Safety
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How to improve system operation safety is an important problem faced by researchers and operators. The core of system operation is the human-machine interaction; so based on system safety analysis, it is an important approach to improve weapon operation safety by constructing man-in-the-loop simulation system to train the operators. Aiming to train the operators safety manipulations and emergency disposal scenario, the core function of man-in-the-loop simulation system for operation safety is to simulate incident scenario and accident process. Based on hazard components analysis, this paper discussed accident process modeling by hybrid dynamic system (HDS) and discrete event system specification (DEVS), investigated the integrating method for DEVS and HLA standard, and designed the architecture of distributed man-in-the-loop simulation system for typical weapon operation safety. The software-hardware configuration and function of simulation system were discussed, the relationships between different hierarchies were analyzed, and the simulation logic was presented.

ACS Style

Jian Jiao; Tingdi Zhao. Man-in-the-loop simulation architecture for system operation safety. 2009 8th International Conference on Reliability, Maintainability and Safety 2009, 454 -460.

AMA Style

Jian Jiao, Tingdi Zhao. Man-in-the-loop simulation architecture for system operation safety. 2009 8th International Conference on Reliability, Maintainability and Safety. 2009; ():454-460.

Chicago/Turabian Style

Jian Jiao; Tingdi Zhao. 2009. "Man-in-the-loop simulation architecture for system operation safety." 2009 8th International Conference on Reliability, Maintainability and Safety , no. : 454-460.