Results 11 to 20 of about 24,205 (164)
Developing and Research on the Nuclear Power Plant Reliability Analysis Software latform Based on the Markov/Cell-to-Cell Mapping Technology [PDF]
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
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
Researches of the decoupled method for reliability-based optimization [PDF]
可靠性优化设计方法是工程结构设计中的一种非常具有优势的设计方法,其中,该方法的求解效率和求解精度是研究的重点。解耦策略是解决结构可靠性优化设计中包含复杂或隐式极限状态、多设计变量、小失效概率问题的一种高效可行的办法,它的关键在于建立失效概率的近似表达式,也就是求解失效概率函数。因此,研究高效求解失效概率函数近似的方法,以及提高优化效率和精度的解耦优化策略对于解决工程结构中的可靠性优化设计问题具有重要的作用。本文围绕上述问题展开研究工作,主要内容包括如下几个部分。 1.基于失效概率函数的概念 ...
朱海燕
core
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
Study of Collection and Qualitative-Quantitative Method on Volatile Organic Compounds in Relay Material [PDF]
继电器内绝缘塑料件、漆包线的绝缘漆层在使用过程中或高温工作环境下产生的过量挥发性有机化合物是影响继电器可靠性的最重要因素之一。本学位论文根据企业实际需求建立了继电器材料中挥发性有机化合物的采集与分析定量方法,取得了以下成果: (1)运用顶空加热-气相色谱-质谱(HS-GC-MS)仪器联用系统建立了继电器材料中挥发性有机化合物的采集与分析定量方法。优化并确定了顶空进样针的加热温度、顶空加热炉加热样品瓶的温度、顶空加热炉加热样品瓶的时间、顶空样品瓶盖的隔垫、塑料米和漆包线样品量等关键分析条件 ...
苏清兴
core
ABSTRACT Background Advances in transcriptomics have driven the demand for minimally invasive, reproducible and high‐yield skin sampling methods, particularly for studying inflammatory skin diseases in companion animals. Hypothesis/Objectives We tested tolerability, feasibility and RNA quantity and quality of three minimally invasive skin sampling ...
Ina Herrmann +2 more
wiley +1 more source
Probability Safety Analysis of Simplified CPR1000 Main Feedwater System and AP1000 Passive Containment Cooling System [PDF]
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
Spatially Downscaling of Future Food Demand for Policy Planning
ABSTRACT Understanding the subnational dynamics of food demand, while accounting for the evolution of the agrifood system at the global level, remains a challenge for designing food policy to ensure food security. To link global agrifood systems with subnational food policy planning, we downscale per capita food demand for 62 food commodities at the ...
Chun Song +3 more
wiley +1 more source
Design and Execution of Network System of a Bank Data Center [PDF]
当前社会信息化和数据化的发展趋势势不可挡,各个金融机构特别是银行,在不断的技术飞跃中采用大量的新技术和手段,带给客户便捷的服务的同时产生海量的客户数据。为了更好的统筹管理这些数据,给客户提供更安全、更快捷的服务,为各乡镇县级网点提供数据交互,各个银行数据中心由此应运而生。 某银行的数据中心,采用了众多的先进技术、设备和设计理念。在网络系统方面,针对数据中心承载多种业务应用的特点,按照高可靠性、高安全性和先进性的原则对网络整体结构和各个功能分区进行了详细的网络方案设计,划分了诸如核心区、生产区、生产外联区、
张冀峰
core
Canine atopic dermatitis (cAD) is a chronic condition requiring life‐long management. Accurate diagnosis can be challenging, with no reliable diagnostic test. This study aimed to generate a simple diagnostic model for cAD. This model is a relevant prototype for an app‐based tool to support general practitioners in the diagnosis of cAD alongside ...
Xavier Langon +2 more
wiley +1 more source

