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大秦重载铁路集中修进度图编制的探讨

铁道建筑 2009年第11期49卷 92-95页

作者：郭林泉太原铁路局工务处太原030013

大秦线集中修进度计划的编制对于集中修施工中的各项施工配合具有重要意义。在说明集中修施工进度表示方法后,利用大秦重载铁路进度图的绘制实例,详细介绍了进度示意图的绘制步骤,可供类似工程参考。

关键词：重载铁路集中修进度图编制

碎石化旧混凝土路面上沥青加铺层应力及顶面模量

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公路交通科技 2009年第12期26卷 23-27,31页

作者：郭林泉周玉民谈至明广东广韶高速公路有限公司广东广州510635 华南理工大学广东广州510641 同济大学道路与交通工程教育部重点实验室上海201804

将碎石化处治的旧水泥混凝土路面层视为宏观均匀、各向同性的线弹性体,采用双层弹性层状体系模型,深入分析了碎石化旧水泥混凝土路面上沥青加铺层的应力、弯沉变化规律,给出了对应不同交通量及沥青加铺层厚度下碎石化旧路面顶面最小回... 详细信息

将碎石化处治的旧水泥混凝土路面层视为宏观均匀、各向同性的线弹性体,采用双层弹性层状体系模型,深入分析了碎石化旧水泥混凝土路面上沥青加铺层的应力、弯沉变化规律,给出了对应不同交通量及沥青加铺层厚度下碎石化旧路面顶面最小回弹模量值,以及碎石化旧路面顶面最大容许弯沉值。研究表明,对应不同交通量和沥青加铺层厚度,要求碎石化旧水泥混凝土路面顶面弯沉在41-114（0.01 mm）之间变化,否则,顶面弯沉超过114（0.01 mm）,则碎石化旧路面不能提供所需的刚度要求,需另外设置基层后再加铺沥青层。

关键词：道路工程最小回弹模量最大容许弯沉碎石化旧水泥混凝土路面

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汾河大桥桩基施工技术分析

邢台职业技术学院学报 2003年第3期20卷 71-73页

作者：郭林泉太原铁路分局介休公务段山西太原031200

本文简述了汾河大桥桩基施工的方法;阐明了正循环旋转钻孔灌注桩和人工挖孔灌注桩的主要工序与操作要求;总结出了桩基施工方法的一般程序。

关键词：桥桩基施工技术正循环旋转钻孔灌注桩人工挖孔灌注桩

弹性轨枕对重载铁路有砟轨道结构受力及变形特征的影响

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铁道建筑 2021年第6期61卷 103-106页

作者：尤瑞林许良善吉克钟源明郭林泉中国铁道科学研究院集团有限公司铁道建筑研究所北京100081 高速铁路轨道技术国家重点实验室北京100081 中国铁路太原局集团有限公司太原030013 中国铁路南宁局集团有限公司南宁530000

建立重载轨道结构有限元模型,分析了列车荷载作用下,不同枕下垫板刚度、不同道床厚度条件下铺设弹性轨枕对重载铁路有砟轨道结构受力及变形特征的影响,并与铺设普通轨枕地段进行了对比。结果表明:枕下垫板刚度对有砟轨道结构受力和变形... 详细信息

建立重载轨道结构有限元模型,分析了列车荷载作用下,不同枕下垫板刚度、不同道床厚度条件下铺设弹性轨枕对重载铁路有砟轨道结构受力及变形特征的影响,并与铺设普通轨枕地段进行了对比。结果表明:枕下垫板刚度对有砟轨道结构受力和变形特征影响较大,随着枕下垫板刚度增大,钢轨的垂向位移逐渐减小,钢轨支点反力、道床垂向位移、道床与基底的垂向应力非线性增大;对于重载铁路,枕下垫板刚度在70~100 kN/mm取值既可控制钢轨垂向位移不超过1.8 mm,又可减轻轨道部件受力、延长道床养护维修周期;道床厚度相同条件下弹性轨枕地段钢轨、道床的垂向位移大于普通轨枕地段,而钢轨支点反力、道床压应力、轨枕弯矩均有所降低,其中钢轨支点反力降低了8.6%,道床最大压应力降低了4.5%,枕中截面负弯矩降低了41.3%。

关键词：重载铁路有砟轨道合理刚度计算分析弹性轨枕枕下垫板轨道变形轨道受力

Locational Marginal Pricing Mechanism for Uncertainty Management Based on Improved Multi-ellipsoidal Uncertainty Set

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Journal of Modern Power Systems and Clean Energy 2021年第4期9卷 734-750页

作者： Zongzheng Zhao Yixin Liu Li guo linquan Bai Chengshan Wang Key Laboratory of Smart Grid of Ministry of Education Tianjin UniversityTianjin 300072China Department of Systems Engineering and Engineering Man agement university of North Carolina at CharlotteCharlotteNC 28223USA

The large-scale integration of renewable energy sources (RESs) brings huge challenges to the power system. A cost-effective reserve deployment and uncertainty pricing mechanism are critical to deal with the uncertainty and variability of RES. To this end, this paper proposes a novel locational marginal pricing mechanism in day-ahead market for managing uncertainties from RES. Firstly, an improved multi-ellipsoidal uncertainty set (IMEUS) considering the temporal correlation and conditional correlation of wind power forecasting is formulated to better capture the uncertainty of wind power. The dimension of each ellipsoidal subset is optimized based on a comprehensive evaluation index to reduce the invalid region without large loss of modeling accuracy, so as to reduce the conservatism. Then, an IMEUS-based robust unit commitment (RUC) model and a robust economic dispatch (RED) model are established for the day-ahead market clearing. Both the reserve cost and ramping constraints are considered in the overall dispatch process. Furthermore, based on the Langrangian function of the RED model, a new locational marginal pricing mechanism is developed. The uncertainty locational marginal price (ULMP) is introduced to charge the RES for its uncertainties and reward the generators who provide reserve to mitigate uncertainties. The new pricing mechanism can provide effective price signals to incentivize the uncertainty management in the day-ahead market. Finally, the effectiveness of the proposed mechanism is verified via numerous simulations on the PJM 5-bus system and IEEE 118-bus system.

关键词： Day-ahead market ellipsoidal uncertainty set locational marginal pricing reserve robust unit commitment

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既有线伤损钢轨移动闪光焊接施工技术现状

高速铁路新材料 2023年第2期2卷 45-49页

作者：李政高松福宋宏图李泽明郭林泉张健中国铁道科学研究院集团有限公司金属及化学研究所北京100081 中国铁路北京局集团有限公司北京工电大修段北京100071 中国铁路太原局集团有限公司太原030013 北京中铁科新材料技术有限公司北京100081

铁路线路的维修维护是保证运输安全与稳定的重要工作,采用闪光焊接方法处理无缝线路中伤损钢轨的效果较好。概述了既有线闪光焊施工技术现状,包括线下焊接、线上焊接和插入焊3种施工方式;分析总结了3种方式存在的问题和解决方法;对既有... 详细信息

铁路线路的维修维护是保证运输安全与稳定的重要工作,采用闪光焊接方法处理无缝线路中伤损钢轨的效果较好。概述了既有线闪光焊施工技术现状,包括线下焊接、线上焊接和插入焊3种施工方式;分析总结了3种方式存在的问题和解决方法;对既有线闪光焊施工技术的进一步发展提出展望。

关键词：钢轨无缝线路伤损焊接接头闪光焊插入焊焊轨施工

Ultrathin organic polymer with p-πconjugated structure for simultaneous photocatalytic disulfide bond generation and CO_(2)reduction

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Journal of Energy Chemistry 2023年第1期76卷 639-647,I0016页

作者： linquan Hou Zhunyun Tang guojiang Mao Shiheng Yin Bei Long Tao Ouyang guo-Jun Deng Atif Ali Ting Song Key Laboratory for Green Organic Synthesis and Application of Hunan Province Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of EducationCollege of ChemistryXiangtan UniversityXiangtan 411105HunanChina Hunan Key Laboratory for Micro-Nano Energy Materials and Device School of Physics and OptoelectronicsXiangtan UniversityXiangtan 411105HunanChina School of Chemistry and Chemical Engineering Henan Normal UniversityXinxiang 453007HenanChina Analytical and Testing Center South China University of TechnologyGuangzhou 510640GuangdongChina Department of Chemistry and State Key Laboratory of Synthetic Chemistry The University of Hong KongPokfulam RoadHong Kong 999077China

Combining photocatalytic organic reactions with CO_(2)reduction is an efficient solar energy utilization mode,but it is still limited by the organic species that can be matched and the low ***,ultrathin organic polymer with p-πconjugated structure(TPP)was rationally designed and prepared,and showed a high yield of CO(15.2 mmol g^(-1))and conversion of SAS coupled products(100%),far exceeding the organic polymer with P=O *** enhanced photoredox activity of TPP is ascribed to the orbital interaction between the p-orbital on phosphorus and theπ-orbitals of aromatic,which can accelerate the photoinduced charge carrier separation and improve the CO_(2)adsorption *** can also be used for the dehydrocoupling of various benzyl mercaptans to the corresponding SAS bond *** work provides a new concept for the efficient synthesis of disulfide bonds combined with CO_(2)reduction in a photoreaction system.

关键词： Photocatalytic coupled reaction Disulfide bond CO_(2)reduction High activity Organic polymer

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史氏鲟与杂交鲟幼鱼生长对比试验

水产学杂志 1999年第1期12卷 33-37页

作者：吴文化曲秋芝邱岭泉马国军孙大江王斌孙慧武夏永涛中国水产科学研究院黑龙江水产研究所中国水产科学研究院科技开发处

在流水条件下，对人工饲料驯化的史氏鲟和杂交鲟幼鱼的生长进行了比较试验，结果表明：经６０ｄ饲养，杂交鲟幼鱼平均体重由７５ｇ增至１２００ｇ，最大个体重１８００ｇ，体长４２０ｃｍ；史氏鲟幼鱼平均体重由７３ｇ增至６... 详细信息

在流水条件下，对人工饲料驯化的史氏鲟和杂交鲟幼鱼的生长进行了比较试验，结果表明：经６０ｄ饲养，杂交鲟幼鱼平均体重由７５ｇ增至１２００ｇ，最大个体重１８００ｇ，体长４２０ｃｍ；史氏鲟幼鱼平均体重由７３ｇ增至６８２ｇ，最大个体重１２００ｇ，体长３１０ｃｍ；本文还就体长与体重关系作了初步分析，并测得杂交鲟幼鱼生长方程为：Ｌ杂＝４４１７Ｇ０４４８２（ｒ＝０９６０４），史氏鲟幼鱼生长方程为：Ｌ史＝５９４０２Ｇ０３７５７（ｒ＝０９８４７）。

关键词：杂交鲟史氏鲟生长方程幼鱼体长平均体重对比试验驯化人工饲料

Prognostic significance of a combined and controlled nutritional status score and EBV-DNA in patients with advanced nasopharyngeal carcinoma:a long-term follow-up study

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Cancer Biology & Medicine 2022年第4期19卷 551-564页

作者： Hui Lu Shanshan guo Liting Liu Qiuyan Chen Yujing Liang Sailan Liu Xuesong Sun QingnanTang Xiaoyun Li Ling guo Haoyuan Mo linquan Tang Haiqiang Mai State Key Laboratory of Oncology in South China Collaborative Innovation Center for Cancer MedicineGuangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and TherapySun Yat-sen University Cancer CenterGuangzhou 510060China Department of Radiation Oncology Guangzhou Concord Cancer CenterGuangzhou 510045China Department of Nasopharyngeal Carcinoma Sun Yat-sen University Cancer CenterGuangzhou 510060China

Objective:Several studies have reported that the controlling nutritional status(CONUT)score is a prognostic predictor for survival among patients with different types of *** assessed the prognostic value of changes in the CONUT score during treatment and theΔCONUT-EBV DNA score in patients with advanced nasopharyngeal carcinoma(NPC).Methods:We retrospectively analyzed 433 patients with advanced NPC having no evidence of metastasis from January 2007 to June 2011;the patients underwent radical concurrent chemoradiotherapy(CCRT)at Sun Yat-sen University Cancer Center and were grouped based on theirΔCONUT andΔCONUT-EBV DNA ***-Meier curves were used to compare the patient outcomes according to the cut-offΔCONUT score and theΔCONUT-EBV DNA scoring ***:Among all patients,overall survival(OS)was independently predicted by a highΔCONUT score(P=0.031)and high EBV DNA(P<0.001).TheΔCONUT-EBV DNA score[OS area under the curve(AUC)=0.621;progression free survival(PFS)-AUC=0.612;distant metastasis-free survival(DMFS)-AUC=0.622]was more predictive of OS,PFS,and DMFS in patients with advanced NPC than theΔCONUT score(OS-AUC=0.547;PFS-AUC=0.533;DMFS-AUC=0.522)and pretreatment plasma EBV DNA levels alone(OS-AUC=0.600;PFS-AUC=0.591,DMFS-AUC=0.610).TheΔCONUT-EBV DNA score was significantly correlated with OS,PFS,and DMFS in patients with advanced NPC treated with ***:TheΔCONUT-EBV DNA score may be useful in clinical practice as a convenient biomarker for predicting the outcomes in patients with advanced NPC treated with CCRT.

关键词： Controlling nutritional status score Epstein-Barr virus deoxyribonucleic acid nasopharyngeal carcinoma prognosis predictive factor