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AP1000 1

二期 1

基础隔震 1

抗震设计 1

核电厂 1

核能工程 1

物理层安全；generalized-K衰落；平均保密容量；保密中断概率；混合伽马分布 1

航空宽带卫星网络；自由空间光传输；高通量毫米波通信；中断概率；相位误差 1

解码转发；能量收集；非线性；保密中断概率 1

认知无线电网络；最大比合并；保密中断概率；单输入多输出 1

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Modeling and simulating the impact of forgetting and communication errors on delays in civil infrastructure shutdowns

Zhe SUN, Cheng ZHANG, Pingbo TANG

《工程管理前沿（英文）》 2021年第8卷第1期页码 109-121 doi: 10.1007/s42524-019-0084-6

摘要： Handoff processes during civil infrastructure operations are transitions between sequential tasks. Typical handoffs constantly involve cognitive and communication activities among operations personnel, as well as traveling activities. Large civil infrastructures, such as nuclear power plants (NPPs), provide critical services to modern cities but require regular or unexpected shutdowns (i.e., outage) for maintenance. Handoffs during such an outage contain interwoven workflows and communication activities that pose challenges to the cognitive and communication skills of handoff participants and constantly result in delays. Traveling time and changing field conditions bring additional challenges to effective coordination among multiple groups of people. Historical NPP records studied in this research indicate that even meticulous planning that takes six months before each outage could hardly guarantee sufficient back-up plans for handling various unexpected events. Consequently, delays frequently occur in NPP outages and bring significant socioeconomic losses. A synthesis of previous studies on the delay analysis of accelerated maintenance schedules revealed the importance and challenges of handoff modeling. However, existing schedule representation methods could hardly represent the interwoven communication, cognitive, traveling, and working processes of multiple participants collaborating on completing scheduled tasks. Moreover, the lack of formal models that capture how cognitive, waiting, traveling, and communication issues affect outage workflows force managers to rely on personal experiences in diagnosing delays and coordinating multiple teams involved in outages. This study aims to establish formal models through agent-based simulation to support the analytical assessment of outage schedules with full consideration of cognitive and communication factors involved in handoffs within the NPP outage workflows. Simulation results indicate that the proposed handoff modeling can help predict the impact of cognitive and communication issues on delays propagating throughout outage schedules. Moreover, various activities are fully considered, including traveling between workspaces and waiting. Such delay prediction capability paves the path toward predictive and resilience outage control of NPPs.

关键词： NPP outage human error team cognition handoff modeling

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秦山二期核电站的自主创新

叶奇蓁,杨兰和

《中国工程科学》 2008年第10卷第1期页码 23-32

摘要：

论述了秦山二期核电工程主要的自主创新内容，包括新的堆芯设计，为此进行的试验研究和计算分析，以及为新堆所作的流致振动试验、分析和堆上实测；针对二环路的安全系统的改进及相应的安全分析，以提高其安全冗余度；根据二环路的特点对核电站的参数及其配套的设备设计进行了优化，使得核电站的出力达到最大；主厂房和常规岛厂房根据二环路及厂址的特点进行了创新。自主研制了控制棒驱动机构和装卸料机，其性能超出了设计指标；采取多种方法式使大部分主设备实施国产化。在土建安装上实施了穹顶整体吊装。在调试方面实施了汽轮发电机组的非核蒸汽冲转

关键词：核能工程二期

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Performance analysis for a two-way relaying power line networkwith analog network coding

Yu-wen QIAN,Meng TIAN,Xue JIANG,Hua-ju SONG,Feng SHU,Jun LI

《信息与电子工程前沿（英文）》 2015年第16卷第10期页码 892-898 doi: 10.1631/FITEE.1500135

摘要： In this paper, we investigate a two-way relaying power line communication (PLC) network with analog network coding. We focus on the analysis of the system outage probability, symbol error rate, and average capacity. Specifically, we first derive the probability density function (PDF) of the received signal-to-noise ratio (SNR) with a closed form, by exploiting the statistical properties of the PLC channel. Then with the help of this PDF, we develop the outage probability, symbol error rate, and average capacity with closed forms, based on the Hermite polynomial. Simulations show that the derived analytical results are consistent with those by Monte Carlo simulation.

关键词： Power line communication Outage probability Symbol error rate Signal attenuation

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基于非线性能量收集器的无线充电中继系统保密中断性能分析 Article

继亮张,高峰潘,宜原解

《信息与电子工程前沿（英文）》 2017年第18卷第2期页码 246-252 doi: 10.1631/FITEE.1601352

摘要：本文考虑了一个包含单一信源、单一信宿、N (N>1)个无线充电中继和单一窃听者的协作系统。本文假设每个中继都拥有一个非线性的能量收集器，且该能量收集器存在一个饱和阈值以限制收集能量的大小。在考虑解码转发和功率分配接收器的场景中，本文选择第K个最优中继来协助信源−中继−信宿链路的传输。同时，本文还推导了保密中断概率的解析表达式，并用通过仿真验证了分析结果。

关键词：解码转发；能量收集；非线性；保密中断概率

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Preparation and properties of nano SiO2 core-shell structured additives and their nanocomposite with polypropylene

KE Yangchuan, SUN Mingzhuo, SONG Yanxin, YANG GuangFu

《化学科学与工程前沿（英文）》 2007年第1卷第1期页码 76-80 doi: 10.1007/s11705-007-0016-6

摘要： To improve the performance of traditional nucleation additives and their compatibility with other additives, as well as to solve complex problems in practical applications, SiO precursors were reactively grafted in situ with the symmetrical hydroxyl groups of the nucleation agents. With this approach, the dissymmetrical part of the nucleation agents plays an important role. As a result, the prepared composite additive the nanoparticle precursor (NPP0) produces excellent results. The NPP0-PP composite has a transparency of over 93%, haze lower than 15%, and a heat distortion temperature (HDT) of 142?C, which is more than the 110?C of the pure PP matrix. In addition, it maintains over 90% of the mechanical properties with a deformation coefficient less than 1%. This indicates a strong nanoeffect.

关键词： deformation coefficient distortion temperature excellent NPP0-PP traditional nucleation

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Experience gained in analyzing severe accidents for WWER RP using CC SOCRAT

《能源前沿（英文）》 2021年第15卷第4期页码 872-886 doi: 10.1007/s11708-021-0796-2

摘要： The current Russian regulatory documents on the safety of nuclear power plant (NPP) specify the requirements regarding design basis accidents (DBAs) and beyond design basis accidents (BDBAs), including severe accidents (SAs) with core meltdown, in NPP design (NP-001-15, NP-082-07, and others). For a rigorous calculational justification of BDBAs and SAs, it is necessary to develop an integral CC that will be in line with the requirements of regulatory documents on verification and certification (RD-03-33-2008, RD-03-34-2000) and will allow for determining the amount of data required to provide information within the scope stipulated by the requirements for the structure of the safety analysis report (SAR) (NP-006-16). The system of codes for realistic analysis of severe accidents (SOCRAT) (formerly, thermohydraulics (RATEG)/coupled physical and chemical processes (SVECHA)/behavior of core materials relocated into the reactor lower plenum (HEFEST)) was developed in Russia to analyze a wide range of SAs at NPP with water-cooled water-moderated power-generating reactor (WWER) at all stages of the accident. Enhancements to the code and broadening of its applicability are continually being pursued by the code developers (Nuclear Safety Institute of the Russian Academy of Sciences (IBRAE RAN)) with OKB Gidropress JSC and other organizations. Currently, the SOCRAT/1 code can be used as a base tool to obtain realistic estimates for all parameters important for computational justification of the reactor plant (RP) safety at the in-vessel stage of SAs with fuel melting. To perform analyses using CC SOCRAT/1, the experience gained during execution of thermohydraulic codes is applied, which allows for minimizing the uncertainties in the results at the early stage of an accident scenario. This study presents the results of the work performed in 2010–2020 in OKB Gidropress JSC using the CC SOCRAT/1. Approaches have been considered to develop calculational models and analyze SAs using CC SOCRAT. This process, which is clearly structured in OKB Gidropress JSC, provides a noticeable reduction in human involvement, and reduces the probability of erroneous results.

关键词： system of codes for realistic analysis of severe accidents (SOCRAT) design basis accidents (DBAs) severe accidents (SAs) computer code (CC) nuclear power plant (NPP) design water-cooled water-moderated (WWER) modeling model safety requirements

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核电厂的抗震设计输入及AP1000核岛隔震课题简介

夏祖讽

《中国工程科学》 2013年第15卷第4期页码 52-56

摘要：

首先简单介绍了世界各国核电厂抗震输入的概况，同时提及了法国、日本及我国相关部门对核岛基础隔震的一些探索，接着重点涉及上海核工程研究设计院针对AP1000系列机组所开展的核岛基础隔震设计课题的总体概念设计内容。本文对核电厂的抗震设计及核岛结构基础的隔震设计提供了较多的实用信息，以供参考。

关键词：核电厂抗震设计 AP1000 基础隔震

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航空宽带卫星通信系统前向链路中继性能分析 Research Articles

孔槐聪1,林敏1,何世文2,3,刘笑宇1,欧阳键1,朱卫平1,4

《信息与电子工程前沿（英文）》 2021年第22卷第6期页码 790-801 doi: 10.1631/FITEE.2000445

摘要：高通量卫星系统可以满足未来高速率和大带宽的需求，在毫米波航空通信中扮演着重要角色。研究了航空宽带卫星通信系统前向链路的中断性能，其中从信关站到卫星的馈线链路使用自由空间光通信传输，从卫星到飞机的用户链路则在毫米波频段工作。特别地，在用户链路中，高通量卫星采用点波束技术，并在飞机上部署大型天线阵列。首先，在采用放大转发协议情况下，提出一种基于位置的波束成形方案，使得平均输出信噪比最大，并且此方案适用于相控阵。然后，假设馈电链路服从伽马—伽马分布，而用户链路经历阴影莱斯衰落，同时考虑相位误差影响，推导出系统的中断概率闭合表达式。为获得分集度和编码增益，进一步推导了高信噪比情况下的渐近中断表达式。最后，数值仿真验证了理论分析的有效性，并揭示相位误差对系统中断性能的影响。

关键词：航空宽带卫星网络；自由空间光传输；高通量毫米波通信；中断概率；相位误差

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基于generalized-K信道的SIMO的物理层安全性能分析 Article

Hong-jiang LEI,Imran Shafique ANSARI,Chao GAO,Yong-cai GUO,Gao-feng PAN,Khalid A. QARAQE

《信息与电子工程前沿（英文）》 2016年第17卷第10期页码 1074-1084 doi: 10.1631/FITEE.1601070

摘要：概要：该文研究了基于generalized-K信道的单发多收系统的物理层安全性能。分别考虑源节点在有和没有窃听信道的信道状态信息的两种情况，将generalized-K分布近似为伽马分布和混合伽马分布，分别推导出系统的保密中断概率和平均保密容量的解析表达式。最后通过蒙特卡罗仿真验证了分析结果。

关键词：物理层安全；generalized-K衰落；平均保密容量；保密中断概率；混合伽马分布

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Spatial impacts of climate factors on regional agricultural and forestry biomass resources in north-eastern province of China

Wenyan Wang, Wei Ouyang, Fanghua Hao, Yun Luan, Bo Hu

《环境科学与工程前沿（英文）》 2016年第10卷第4期 doi: 10.1007/s11783-016-0864-8

摘要： Dynamic analysis of biomass combined NPP modeling has been adopted. Temperature trends to warming and precipitation has periodic fluctuation. Regional distribution of agricultural and forestry biomass is mutual and divergent. Precipitation is significantly positive correlated with agricultural biomass. Temperature is negative on forestry biomass in Lesser Khingan & northern Changbai. Precipitation plays positive effect on biomass in southwestern Changbai Mountain. The dynamics of agricultural and forestry biomass are highly sensitive to climate change, particularly in high latitude regions. Heilongjiang Province was selected as research area in North-east China. We explored the trend of regional climate warming and distribution feature of biomass resources, and then analyzed on the spatial relationship between climate factors and biomass resources. Net primary productivity (NPP) is one of the key indicators of vegetation productivity, and was simulated as base data to calculate the distribution of agricultural and forestry biomass. The results show that temperatures rose by up to 0.37°C/10a from 1961 to 2013. Spatially, the variation of agricultural biomass per unit area changed from -1.93 to 5.85 t·km ·a during 2000–2013. More than 85% of farmland areas showed a positive relationship between agricultural biomass and precipitation. The results suggest that precipitation exerts an overwhelming climate influence on agricultural biomass. The mean density of forestry biomass varied from 10 to 30 t·km . Temperature had a significant negative effect on forestry biomass in Lesser Khingan and northern Changbai Mountain, because increased temperature leads to decreased Rubisco activity and increased respiration in these areas. Precipitation had a significant positive relationship with forestry biomass in south-western Changbai Mountain, because this area had a warmer climate and stress from insufficient precipitation may induce xylem cavitation. Understanding the effects of climate factors on regional biomass resources is of great significance in improving environmental management and promoting sustainable development of further biomass resource use.

关键词： Biomass resources Net primary productivity (NPP) Climate change Heilongjiang Province China Climate Energy systems/technology Other sustainability (specify) Statistical methods GIS Model flow CFD

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基于最大比合并的认知无线电物理层保密性能分析 Article

Hui ZHAO,Dan-yang WANG,Chao-qing TANG,Ya-ping LIU,Gao-feng PAN,Ting-ting LI,Yun-fei CHEN

《信息与电子工程前沿（英文）》 2016年第17卷第9期页码 929-937 doi: 10.1631/FITEE.1500351

摘要：概要：在瑞利衰落信道下，本文研究了认知无线电网络中最大比合并的保密中断性能。在一个单输入多输出窃密系统中，本文考虑一个次级用户向另一个装备多根接收天线并且采用最大比合并提高其合并信噪比的次级用户发送保密信息。与此同时，一个装备多根接收天线也采用最大比合并的窃密者窃听这对合法次级用户的信息。合法次级发送者采用Underlay策略与主用户共享频谱资源的同时亦不影响主用户的通信质量。考虑上述的窃密环境，本文分别得到了精确和近似保密中断概率的闭式表达式。

关键词：认知无线电网络；最大比合并；保密中断概率；单输入多输出

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标题作者时间类型操作

Modeling and simulating the impact of forgetting and communication errors on delays in civil infrastructure shutdowns

Zhe SUN, Cheng ZHANG, Pingbo TANG

期刊论文

秦山二期核电站的自主创新

叶奇蓁,杨兰和

期刊论文

Performance analysis for a two-way relaying power line networkwith analog network coding

Yu-wen QIAN,Meng TIAN,Xue JIANG,Hua-ju SONG,Feng SHU,Jun LI

期刊论文