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期刊论文 7

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2022 1

2017 1

2016 1

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2000 2

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CIMS 1

IPv6 1

IP核心网 1

TD-LAS 1

产品数据管理（PDM） 1

宽带移动无线互联网 1

无线局 1

时分同步码分多址 1

流程工业 1

码分多址 1

移动IP 1

移动互联网 1

移动通信 1

第3代移动电话 1

第三代移动通信 1

综合自动化 1

软件定义网络；控制器部署；K自适应方法 1

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Peroxyacetyl nitrate measurements by thermal dissociation–chemical ionization mass spectrometry in an urban environment: performance and characterizations

Xinfeng Wang, Tao Wang, Likun Xue, Wei Nie, Zheng Xu, Steven C. N. Poon, Wenxing Wang

《环境科学与工程前沿（英文）》 2017年第11卷第4期 doi: 10.1007/s11783-017-0925-7

摘要： Peroxyacetyl nitrate (PAN) is an important indicator of photochemical smog and has adverse effects on human health and vegetation growth. A rapid and highly selective technique of thermal dissociation–chemical ionization mass spectrometry (TD-CIMS) was recently developed to measure the abundance of PAN in real time; however, it may be subject to artifact in the presence of nitric oxide (NO). In this study, we tested the interference of the PAN signal induced by NO, evaluated the performance of TD-CIMS in an urban environment, and investigated the concentration and formation of PAN in urban Hong Kong. NO caused a significant underestimation of the PAN signal in TD-CIMS, with the underestimation increasing sharply with NO concentration and decreasing slightly with PAN abundance. A formula was derived to link the loss of PAN signal with the concentrations of NO and PAN, which can be used for data correction in PAN measurements. The corrected PAN data from TD-CIMS were consistent with those from the commonly used gas chromatography with electron capture detection, which confirms the utility of TD-CIMS in an urban environment in which NO is abundant. In autumn of 2010, the hourly average PAN mixing ratio varied from 0.06 ppbv to 5.17 ppbv, indicating the occurrence of photochemical pollution in urban Hong Kong. The formation efficiency of PAN during pollution episodes was as high as 3.9 to 5.9 ppbv per 100 ppbv ozone. PAN levels showed a near-linear increase with NO concentration, suggesting a control policy of NO reduction for PAN pollution.

关键词： TD-CIMS Peroxyacetyl nitrate Interference Photochemical pollution Formation efficiency

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流程工业综合自动化的探讨与思考

黄道,李光华

《中国工程科学》 2000年第2卷第12期页码 52-58

摘要：

工业自动化的快速发展给化工企业实施综合自动化创造了良好的基础条件，文章提出了流程工业企业综合自动化的三层框架式结构，并在概念上对其进行了描述，对实施综合自动化过程中必须重视的关键问题进行了讨论。根据在实际化工企业实施综合自动化过程中的体会，简介了一项工程实例。

关键词：流程工业 CIMS 综合自动化产品数据管理（PDM）

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新3G系统——移动无线互联网

侯自强

《中国工程科学》 2002年第4卷第7期页码 86-92

摘要：

提出一种新3G宽带移动互联网系统。该系统是在3G框架之内，使用3G的工作频率，采用现有的技术使之具有IMT-2000以后系统特征的宽带无线移动互联网系统。竞争的运营商可以利用其已经有的固定宽带互联网资源建设发展宽带无线移动互联网，并且可以以极低的成本在该系统上提供新话音和多媒体业务。

关键词：第3代移动电话移动互联网宽带移动无线互联网无线局 TD-LAS 移动IP IPv6 IP核心网

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Atypical manifestations of acute coronary syndrome — throat discomfort: a multi-center observational study

《医学前沿（英文）》 2022年第16卷第4期页码 651-658 doi: 10.1007/s11684-021-0859-0

摘要： To present the clinical characteristics and the misdiagnosis rate of acute coronary syndrome manifested primarily as throat discomfort, we conducted a multicentric and retrospective study in the cardiology and otorhinolaryngology departments. Records of patients with primary complaint of throat discomfort, absence of chest pain at onset, and an ultimate diagnosis of acute coronary syndrome, as well as patients with pharyngitis (as controls) were collected from May 2015 to April 2016. The patients’ main manifestations were compared. Logistic regression results showed that chest tightness, dyspnea, perspiring, and exertional throat symptoms were significantly associated with acute coronary syndrome, with odds ratios of 8.3 (95% CI 2.2−31.5), 10.9 (95% CI 1.8−66.9), 25.4 (95% CI 3.6−179.9), and 81.2 (95% CI 13.0−506.7). A total of 25 (56.82%) out of 44 acute coronary syndrome patients, who were first admitted to the otorhinolaryngology department, were misdiagnosed, with a 12% (3/25) mortality rate. Throat discomfort can be the principal manifestation of acute coronary syndrome. Such patients exhibit high misdiagnosis and mortality rates. Exertional throat symptoms, chest tightness, perspiring, and dyspnea were important indicators of acute coronary syndrome in patients whose main complaint was throat discomfort. The awareness of this condition will result in prompt diagnosis and reduce morbidity and mortality.

关键词： acute coronary syndrome (ACS) throat discomfort (TD) throat pain cardiology departments non-cardiologic physicians

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第三代移动通信——现代无线技术面向IP的应用

邬贺铨

《中国工程科学》 2000年第2卷第8期页码 69-75

摘要：文章在简介即将投入应用的第二代半移动通信技术之后，引出面向宽带多媒体应用的第三代移动通信（3GM），重点介绍了被选作3GM国际无线传输技术标准的几种主流方案及其关键技术，特别对其中由我国提交的TD-SCDMA

关键词：移动通信第三代移动通信码分多址时分同步码分多址

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Well-being analysis of GSU transformer insulation incorporating the impact on power generation using fuzzy logic

Alagarsamy KRISHNAVEL, Dusmata Kumar MOHANTA, M. Jaya Bharata REDDY

《能源前沿（英文）》 2013年第7卷第3期页码 288-299 doi: 10.1007/s11708-013-0265-7

摘要： With the prevailing power scenario, every watt-second of electrical energy has its own merit in satisfying the consumer demand. At the state of such a stringent energy demanding era, failure of a power generation equipment compounds the energy constraints which will not only result in a huge loss of generation but also have an impact on capital revenue. The unexpected failure of generator step-up (GSU) transformer is especially a major disturbance in the power system operation and leads to unscheduled outages with power delivery problems. The time lag in bringing back the equipment in service after rectification or replacement may increase the criticality as the process involves mobilization of spares and maintenance professionals. Hot atmosphere existing in the vicinity of thermal power stations running round-the-clock with more than 100% plant load factor (PLF) increases the thermal stress of the electrical insulation which leads to premature failure of windings, bushings, core laminations, etc. The healthy state of the GSU transformer has to be ensured to minimize the loss of power generation. As the predication related to failure of a GSU transformer is associated with some uncertainties, a fuzzy approach is employed in this paper along with actual field data and case studies for the well-being analysis of GSU transformer.

关键词： generator step-up (GSU) transformer well-being analysis dissolved gases in oil analysis (DGA) tan delta (TD) sweep frequency response analysis (SFRA) fuzzy inference system (FIS)

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一种K自适应的广域网SDN控制器部署方法 Article

Peng XIAO,Zhi-yang LI,Song GUO,Heng QI,Wen-yu QU,Hai-sheng YU

《信息与电子工程前沿（英文）》 2016年第17卷第7期页码 620-633 doi: 10.1631/FITEE.1500350

摘要：软件定义网络（software-defined networking）作为一种新技术框架，正成为未来网络技术的核心。软件定义网络的核心思想就是控制平面和数据平面分离，方便管理和控制编程。虽然软件定义网络已在数据中心这样的局域网中得到了应用和部署，但在更大规模的广域网上部署依然面临着很多问题，如SDN域划分、控制器部署等问题。本文提出了一种基于谱聚类的SDN控制器部署方法，通过此方法能将较大的网络划分成小的SDN域并选择其控制器位置。通过分析模型的矩阵扰动和本征间隙，能够自动得到SDN域个数，以达到较好的划分效果和控制器部署方案。最后，为了验证算法的有效性，本文提出了一个新的实验框架，并基于广域网拓扑结构进行了实验。实验结果表明，该方法能很好的解决SDN域划分和控制器部署问题。

关键词：软件定义网络；控制器部署；K自适应方法

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标题作者时间类型操作

Peroxyacetyl nitrate measurements by thermal dissociation–chemical ionization mass spectrometry in an urban environment: performance and characterizations

Xinfeng Wang, Tao Wang, Likun Xue, Wei Nie, Zheng Xu, Steven C. N. Poon, Wenxing Wang

期刊论文

流程工业综合自动化的探讨与思考

黄道,李光华

期刊论文

新3G系统——移动无线互联网

侯自强

期刊论文

Atypical manifestations of acute coronary syndrome — throat discomfort: a multi-center observational study

期刊论文

第三代移动通信——现代无线技术面向IP的应用

邬贺铨