The Ore-forming Age of the Uranium Mineralization Associated with Precambrian Sedimentary-Metamorphic Iron Deposits in Eastern Liaoning Province and Reliability Analysis of Dating Results [PDF]
, 2023 BACKGROUNDThe eastern Liaoning Province represents the eldest hydrothermal uranium ore cluster area in China. Two ore types are classified, including independent uranium mineralization and uranium mineralization associated with Precambrian sedimentary ...
Houmin LI +6 more
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Reliability Evaluation Method of Urban Distribution Network Power Supply Considering Automatic Partitioning of Distribution Network [PDF]
, 2023 [Introduction] Under the current situation of increasing automation level of distribution network, in order to solve the problem that the influence of distribution automation is not considered in traditional distribution network power supply reliability ...
Wei LIAO, Wenfeng YANG, Zhou SHU
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Structural reliability analysis of icebreaker structure based on subset simulation method [PDF]
ObjectiveThe analysis of small failure probability in the overall longitudinal strength of a ship's hull structure is a complex, high-dimensional and time-consuming task which is challenging to calculate accurately using traditional reliability analysis ...
Bin LIU, Kaiwen TAO
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, 2019 为了研究时变系统的不确定性量化和传递问题,提出了一种概率盒演化方法。根据系统的时变规律,获取系统响应的累积分布函数随时间变化的规律。将认知不确定性参数和随机不确定性参数分离在外层和内层,用蒙特卡洛法量化外层的认知不确定性参数,用基于随机配点的非嵌入式混沌多项式法量化内层的随机不确定性参数,通过求取不同时刻系统响应的累积分布函数的上下边界,创建时变概率盒。最后,通过一延时电路性能退化算例,验证了该方法的有效性。研究表明,时变概率盒不仅表征了系统特定时刻的混合不确定性 ...
孙东阳, 张保强, 锁斌, 陈梅玲
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Developing and Research on the Nuclear Power Plant Reliability Analysis Software latform Based on the Markov/Cell-to-Cell Mapping Technology [PDF]
, 2016 我国核电发展以“安全高效发展核电”为基本要求，要求在核电建设、运行过程必须在采用国际最高安全标准、确保安全的前提下进行。目前在建核电站已全部采用数字化仪控系统，但在使用传统静态故障树/事件树方法对核电站可靠性分析过程中发现，该方法无法对数字化仪控系统中的软件、硬件、人因作用交互等方面问题进行描述。动态概率安全分析方法便基于此环境下发展而来。马尔可夫区间映射方法（Markov/CCMT）方法是现有动态概率安全分析方法中弊端最小，优点最多的方法之一，但国内外尚无可用商用软件。 随着我国核电规模的迅速扩大 ...
赵旭
core
Optimization of Performance Shaping Factor in SPAR-H Method for Nuclear Power Plant [PDF]
Probabilistic safety assessment (PSA), as a component of the nuclear power plant (NPP) license document, plays an important role in the license application and safety operation of nuclear power plants.
ZHUO Yucheng1, QIU Yongping1, LIU Peng2, LI Zhizhong3, LEI Wenjing1, TAN Xiao1, QIU Yimin1
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Wildlife Letters, EarlyView.Climate change drives shifts in suitable habitats for Eurasian lynx and its prey (hare, roe deer) in Mohe, Daxing'anling Mountains. Under RCP scenarios, moderate warming (RCP4.5) promotes substantial habitat expansion, while high‐emission conditions (RCP8.5) lead to strong expansion in the 2050s but slower gains and partial contraction by the 2070s ...
Binglian Liu +5 more
wiley +1 more source
Probability Safety Analysis of Simplified CPR1000 Main Feedwater System and AP1000 Passive Containment Cooling System [PDF]
, 2016 随着数字化仪控系统在核电厂中得到越来越多的应用，其可靠性对核电安全也越来越重要。传统概率安全分析方法已在模拟仪控系统中得到广泛应用，但在分析具有新设备和新技术的数字化仪控系统时还存在不足。动态概率安全分析方法中，Markov/CCMT是较为符合数字化仪控特性的概率安全分析方法之一。 本文主要是应用故障树、Markov和Markov/CCMT三种方法对简化CPR1000主给水系统和简化AP1000非能动安全壳冷却系统分别进行安全分析，其中简化CPR1000主给水系统在设置故障时偏重于数字类故障 ...
侯恩通
core
The Relationship among Ownership Structure, Managers’ Factors and Firm Technical Innovation: a Case Study [PDF]
, 2010 The empirical research on the relationship between firm ownership structure and technical innovation, is the weak tache in existing research. Based on existing research result, this article empirically studies the impact of managers on relationship ...
XIA, Dong
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Veterinary Dermatology, EarlyView.ABSTRACT Background Canine atopic dermatitis (cAD) is a multifactorial, inherited skin disease, estimated to affect ≤ 15% of dogs. Studies of skin messenger mRNA in cAD currently use invasive methods, including blood sampling and biopsy collection, whilst advances in human atopic dermatitis study methodology have demonstrated reliable use of minimally ...
Xavier Langon +5 more
wiley +1 more source