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MANAGING REDISTRIBUTION OF TOLL REVENUE WITH USER HETEROGENEITY

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Journal of Systems Science and Systems Engineering 2014年第3期23卷 330-342页

作者： shu-xian Xu Tian-Liang Liu Hai-Jun Huang School of Economics and Management Beihang University

With the explicit consideration of user heterogeneity, i.e., each user has a different value of time （VOT）, this paper examines the system efficiency and social equity of toll revenue redistribution in a bi-mode transportation system. Three schemes of distributing the road toll revenue are proposed, which respectively consider efficiency, equity, as well as efficiency and equity together. With mild assumptions, we prove that the number of auto-motorists decreases and the total social cost increases with transit subsidy share when only marginal operating cost of the transit is covered by its fare. However, when average fixed cost of the transit is further covered, the total social cost is a ＂U＂ shape curve against the transit subsidy share. Numerical results show that the well designed toll revenue redistribution schemes can make the system more equitable while keeping high efficiency. With the increase of user heterogeneity, the Gini coefficient becomes larger while the total social cost goes down.

关键词： Mode choice value of time toll revenue redistribution efficiency equity

Decay Rate of Quasilinear Wave Equation with Viscosity

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Acta Mathematicae Applicatae Sinica 2012年第3期28卷 591-596页

作者： Yu-ming QIN Xin LIU shu-xian DENG Department of Applied Mathematics College of SciencesDonghua UniversityShanghai 201620China College of Information Sciences and Technology Donghua UniversityShanghai 201620China

This paper is concerned with the decay rate of solutions for a quasilinear wave equation with viscosity. We use a so-called energy perturbation method to establish decay rate of solutions in terms of energy norm for a class of nonlinear functions. With the help of a comparison lemma of differential inequalities, we establish a relationship between decay rate of solutions and f.

关键词： decay rate energy inequality quasilinear wave equation

健康中国背景下森林康养旅游的可持续发展路径研究——以桂林市为例

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江苏商论 2025年第1期 70-76页

作者：李淑贤龚箭唐凡茗桂林旅游学院酒店管理学院广西桂林541006 华中师范大学城市与环境科学学院湖北武汉430079

党的二十大报告提出要“全面推进乡村振兴”,森林康养旅游作为一种绿色产业、幸福产业、朝阳产业,可以挖掘旅游地多元价值、建设宜居宜业和美乡村、促进林农增收致富、增进人类福祉。本文运用SWOT-AHP分析法结合战略分析为其可持续发展... 详细信息

党的二十大报告提出要“全面推进乡村振兴”,森林康养旅游作为一种绿色产业、幸福产业、朝阳产业,可以挖掘旅游地多元价值、建设宜居宜业和美乡村、促进林农增收致富、增进人类福祉。本文运用SWOT-AHP分析法结合战略分析为其可持续发展路径提出建议。研究表明:(1)桂林市森林康养旅游可持续发展的内部优势(0.4093)>外部机遇(0.2952)>自身劣势(0.1894)>发展威胁(0.1061)。其中生态环境优良(0.3235)和旅游资源丰富(0.2748)是主要优势因素,配套设施欠缺(0.3417)和专业人才匮乏(0.2519)是影响发展的主要短板。同时,面临着市场需求增加(0.4349)这一最大机遇和招商融资困难(0.3873)这一首要威胁。(2)在四象限坐标分析中,桂林市森林康养旅游发展战略的重心坐标P(x,y)=P(0.2279,0.2566),战略强度系数ρ=0.9070,确定桂林市森林康养旅游应积极采取竞争型可持续发展战略。(3)基于上述分析提出4点建议:促进产业融合,丰富产品供给;完善配套设施,提升服务体验;培育专业人才,夯实产业发展基础;强化招商引资,优化营商环境。

关键词：森林康养康养旅游可持续旅游 SWOT-AHP分析法

Synthesis of novel 15-membered macrolide derivatives

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Chinese Chemical Letters 2008年第4期19卷 409-411页

作者： Rui Qing xian shu Tao Ma Bo Jiao School of Pharmacy Shandong UniversityJinan 250012China

In order to develop new antibiotics effective against resistant bacteria,a series of novel 15-membered macrolide derivatives were designed and synthesized by the modification of hydroxyl groups at C-11,C-12 and C-4＂ ... 详细信息

关键词： Macrolide Azithromycin derivatives Synthesis 4"-Carbamate derivatives

Novel synthesis of N-substituted-calix[4]azacrown derivatives

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Chinese Chemical Letters 2010年第7期21卷 807-809页

作者： Zhi Qiang Shi Ya Qing Feng shu xian Meng Renai College of Tianjin University Tianjin 301636China School of Chemical Engineering and Technology Tianjin UniversityTianjin 300072China

A novel series of calix[4]azacrown derivatives with the reaction between calix[4]azacrown and the different fluorophore derivatives,which may be useful fluorescent receptors,have been synthesized and structurally characterized by IR,~1H NMR,^（13）C NMR and *** their analysis data,it was found those compounds adopted a cone conformation.

关键词： Calixazacrown Naphthalimide Fluorescent sensors Synthesis Characterization

Surface Modification of Polypropylene by Ethylene Plasma and Its Induced β-Form in Polypropylene

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Chinese Journal of Polymer Science 2015年第5期33卷 669-669,670-673页

作者：马桂秋 Ya-peng Liu shu-xian Wei Jing Sheng School of Materials Science and Engineering Tianjin Key Laboratory of Composite and Functional MaterialsTianjin University

This study aims to investigate the chemical structure and morphology of plasmapolymers produced by deposition of ethylene on the surface of polypropylene. The deposition films（sediments） of ethylene plasma on the surface of polypropylene are nonuniform, and the characterization results indicate the existence of hydroxyl groups and aldehyde（or ketone） groups in the sediments. The sediment of ethylene plasma on the polypropylene surface could induce the growth of β-form crystals in the surface layer of polypropylene.

关键词： Plasma polymerization Plasma modification of polypropylene β-Form polypropylene

Systemic autoimmune abnormalities complicated by cytomegalovirus-induced hemophagocytic lymphohistiocytosis:A case report

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World Journal of Clinical Cases 2020年第20期8卷 4946-4952页

作者： shu-xian Miao Zhi-Qi Wu Hua-Guo Xu Department of Laboratory Medicine The First Affiliated Hospital of Nanjing Medical UniversityNanjing 210029Jiangsu ProvinceChina

BACKGROUND Hemophagocytic lymphohistiocytosis(HLH)is a rare but life-threatening disorder,characterized by a hyperimmune *** mortality is high despite progress being made in the diagnosis and treatment of the *** is traditionally divided into primary(familial or genetic)and secondary(reactive)according to the *** HLH(sHLH),more common in adults,is often associated with underlying conditions including severe infections,malignancies,autoimmune diseases,or other *** SUMMARY The case involves a 31-year-old woman,presented with a high persistent fever,rash,and *** met the diagnostic criteria of the HLH-2004 guideline and thus was diagnosed with HLH,with positive anti-nuclear antibody(ANA)and positive cytomegalovirus(CMV)-*** patient responded well to a combination of immunomodulatory,chemotherapy,and supportive *** her PCR evaluation for CMV turned negative,her serum ferritin also dropped *** clinical symptoms improved dramatically,and except for ANA,the abnormal laboratory findings associated with HLH returned to *** previous study has shown that the median overall survival of HLH patients is only 6 mo;however,our patient has been cured and has not presented with any relapse of the disease for 6 *** This case emphasizes that thorough early removal of the CMV infection is significant for the prognosis of this HLH patient.

关键词： Hemophagocytic lymphohistiocytosis Autoimmune abnormalities Cytomegalovirus Anti-nuclear antibody Serum ferritin Case report

Reconceptualization of immune checkpoint inhibitor-associated gastritis

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World Journal of Gastroenterology 2024年第36期30卷 4031-4035页

作者： Ying-Fang Deng xian-shu Cui Liang Wang Department of Oncology Affiliated Hospital of Qinghai UniversityXining 810000Qinghai ProvinceChina Department of Gastrointestinal Oncology Surgery Affiliated Hospital of Qinghai UniversityXining 810000Qinghai ProvinceChina

In recent years,with the extensive application of immunotherapy in clinical practice,it has achieved encouraging therapeutic *** enhancing clinical efficacy,however,it can also cause autoimmune damage,triggering immunerelated adverse events(irAEs).Reports of immunotherapy-induced gastritis have been increasing annually,but due to its atypical clinical symptoms,early diagnosis poses a certain ***,it can lead to severe complications such as gastric bleeding,elevating the risk of adverse outcomes for solid tumor patients if immunotherapy is ***,gaining a thorough understanding of the pathogenesis,clinical manifestations,diagnostic criteria,and treatment of immune-related gastritis is of utmost importance for early identification,diagnosis,and ***,the treatment of immune-related gastritis should be personalized according to the specific condition of each *** patients with grade 2-3 irAEs,restarting immune checkpoint inhibitors(ICIs)therapy may be considered when symptoms subside to grade *** restarting ICIs therapy,it is often recommended to use different types of *** grade 4 irAEs,permanent discontinuation of the medication is necessary.

关键词： Programmed cell death receptor-1 Programmed cell death-ligand 1 Cytotoxic T lymphocyte-associated antigen 4 Immune-related adverse events Immune-related gastritis

Meta-analysis of late course accelerated hyperfractionated radiotherapy combined with FP chemotherapy for esophageal carcinoma

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Chinese Journal of Cancer 2010年第10期29卷 889-899页

作者： Chao-Xing Liu Xue-Ying Li xian-shu Gao Department of Radiation Oncology Peking University First Hospital Beijing 100034 P. R. China Department of Medical Statistics Peking University First Hospital Beijing 100034 P. R. China

Background and Objective:Although there are many randomized clinical trials of late course accelerated hyperfractionated radiotherapy (LCAHFR) combined with FP chemotherapy for esophageal cancer, the efficacy and toxicity are controversial. This study was to evaluate the efficacy and toxicity of LCAHFR combined with FP chemotherapy in treating esophageal cancer. Methods: Reports of randomized clinical trials on LCAHFR combined with FP chemotherapy for esophageal cancer published between January 1999 and January 2009 were researched through Wanfang, CNKI, and PubMed databases. RevMan4.2 software was used for Meta-analysis. Results: Twenty-one reports, including 2030 patients, were included in the meta-analysis. Of the 2030 patients, 1006 underwent LCAHFR (LCAHFR group), and 1024 underwent LCAHFR combined with FP chemotherapy (combination group). Compared with those of the LCAHFR group, the 1-, 2-, 3-, 5-years survival rates and 1-, 2-, 3-year local control rates of the combination group were significant increased, and the acute toxicity was also increased, but chronic toxicity showed no significant difference. C onclusions: LCAHFR combined with FP chemotherapy can improve the survival rate and the local control rate of the patients with esophageal cancer. The increased acute toxicity need to be concerned, whereas the chronic toxicity needs a long-term observation.

关键词：食管癌化疗分割 PubMed数据库 Meta分析急性毒性放疗计划生育