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Recent advances in traffic signal performance evaluation

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Journal of Traffic and Transportation Engineering(English Edition) 2022年第4期9卷 507-531页

作者： Dallas leitner Piro Meleby Lei Miao Department of Engineering Technology Middle Tennessee State UniversityMurfreesboroTN 37132USA

Signal retiming is a prominent way that transportation agencies use to fight congestion and change of traffic *** evaluations of traffic conditions at signalized intersections and arterials provide actionable data for agencies to make well-informed and prioritized signal retiming ***,the abundance of data sources,the lack of standardized evaluation methods and oftentimes the shortage of resources make it a difficult *** review detailed in this paper examines the advances made in traffic signal performance *** establish the necessity for the evaluations,study the process of continuous improvement of traffic signal performance using the evaluations,and then examine multiple methodologies in a plethora of research ***,we focus on probe vehicles and sensors data,the two major sources of *** discuss how sensors are connected to signal controllers to provide relevant in-depth traffic data including speed and occupancy *** also review the nature of probe vehicles and the level of *** then define and summarize performance measures derived from both sources,to aid in performance *** performance evaluation methods,we discuss the research studies and provide summaries including advantages and disadvantages of the methods used,as well as a holistic outlook for future *** paper is aimed to provide a comprehensive review on the state-of-the-art to benefit researcher,traffic agencies,and commercial entities that thrive to improve safety and efficiency of traffic signals through performance evaluations.

关键词： Intelligent transportation systems Traffic signal performance evaluation Traffic signal retiming Traffic signals optimization Intersection control evaluation

From gatekeeper to gateway to gate-opener:A new role for the global library field

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Journal of Library Science in China 2019年 22-27页

作者： Gerald leitner International Federation of Library Associations and Institutions The HagueNetherlands

Thank you once again for the floor,and for the opportunity to share some thoughts with you.I want to share a story of two parallel journeys,two parallel *** transformation of the role of information,and the transformation of the role of *** that also matter crucially for IFLA,for the global library field,because they demand a transformation of us as well.

关键词： gatekeeper gate-opener library

Pharmacological- and non-pharmacological therapeutic approaches in inflammatory bowel disease in adults

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World Journal of Gastrointestinal Pharmacology and Therapeutics 2016年第1期7卷 5-20页

作者： Gerda C leitner Harald Vogelsang University Clinic for Blood Group Serology and Transfusion Medicine Medical University University Clinic of Gastroenterology 3rd Internal Medicine Medical University

Inflammatory bowel diseases (IBDs) are a group of chronic inflammatory conditions mainly of the colon and small intestine. Crohn’s disease (CD) and ulcerative colitis (UC) are the most frequent types of IBD. IBD is a complex disease which arises as a result of the interaction of environmental, genetic and immunological factors. It is increasingly thought that alterations of immunological reactions of the patients to their own enterable bacteria (microfilm) may contribute to inflammation. It is characterized by mucosal and sub mucosal inflammation, perpetuated by infiltration of activated leukocytes. CD may affect the whole gastrointestinal tract while UC only attacks the large intestine. The therapeutic goal is to achieve a steroid-free long lasting remission in both entities. UC has the possibility to be cured by a total colectomy, while CD never can be cured by any operation. A lifelong intake of drugs is mostly necessary and essential. Medical treatment of IBD has to be individualized to each patient and usually starts with anti-inflammatory drugs. The choice what kind of drugs and what route administered (oral, rectal, intravenous) depends on factors including the type, the localization, and severity of the patient’s disease. IBD may require immune-suppression to control symptoms such as prednisolone, thiopurines, calcineurin or sometimes folic acid inhibitors or biologics like TNF-α inhibitors or anti-integrin antibodies. For both types of disease (CD, UC) the same drugs are available but they differ in their preference in efficacy between CD and UC as 5-aminosalicylic acid for UC or budesonide for ileocecal CD. As therapeutic alternative the main mediators of the disease, namely the activated pro-inflammatory cytokine producing leukocytes can be selectively removed via two apheresis systems (Adacolumn and Cellsorba) in steroid-refractory or dependent cases. Extracorporeal photopheresis results in an increase of regulatory B cells, regulatory

关键词： Inflammatory bowel disease Crohn&rsquo s disease Ulcerative colitis Extracorporeal treatment Step up/top down Psychological aspects in inflammatory bowel disease Current medical treatment of inflammatory bowel disease Future therapeutical strategies

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巴斯夫公司在浆料市场上的积极参与

上海纺织科技 1996年第4期 33-34页

作者： Mr.leitner Mr.Stoehr

1 概述巴斯夫公司已有半个世纪生产合成浆料的历史并销往全世界。在60年代中期巴斯夫公司为使用丙烯酸酯浆料作为短纤上浆配方的主成分开辟了新天地,那时普遍认为丙烯酸酯浆料仅是作为添加剂。经过这一受到专家高度评价的工作,开创了... 详细信息

1 概述巴斯夫公司已有半个世纪生产合成浆料的历史并销往全世界。在60年代中期巴斯夫公司为使用丙烯酸酯浆料作为短纤上浆配方的主成分开辟了新天地,那时普遍认为丙烯酸酯浆料仅是作为添加剂。经过这一受到专家高度评价的工作,开创了一个巨大的世界市场,世界各地纷纷建立起生产基地来供应丙烯酸酯浆料。我们在世界上14个国家以及德国总部生产浆料,这意味着我们能够迅速地向世界所有纺织地区客户提供他们所需的产品。丙烯酸酯结构是我们大多数产品的基础,它具有如下优点:

关键词：巴斯夫公司巴登苯胺与苏打股份公司丙烯酸酯浆料短纤纱化学纤维纱退浆性粘胶长丝

基于随机需求确定共享电动汽车系统的充电站的最佳位置

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城市规划学刊 2017年第4期 121-122页

作者： BRANDSTTTER G KAHR M leitner M 吴卓烨

根据全球人口预测,在21世纪上半叶,全球将会增加20至40亿的人口。而其中的绝大部分将会出现在城市,并且会给城市的能源供应和交通供给带来巨大压力。而共享电动汽车系统同时拥有电动和共享两大特色,将助于克服未来出现的环境污染、交通... 详细信息

根据全球人口预测,在21世纪上半叶,全球将会增加20至40亿的人口。而其中的绝大部分将会出现在城市,并且会给城市的能源供应和交通供给带来巨大压力。而共享电动汽车系统同时拥有电动和共享两大特色,将助于克服未来出现的环境污染、交通拥堵或化石燃料短缺等方面挑战。截至2015年共享电动汽车系统只占到全球机动车市场份额的0.1%以下。其发展主要受到两方

关键词：电动汽车电动车辆充电站启发式算法

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天空花园改建——药草园,维也纳,奥地利

世界建筑 2020年第10期 106-111,138页

作者：无 Hans leitner(摄影) X建筑事务所不详

任务,维也纳维登区所具有的历史性和与市中心紧密连接的地理位置,使其成为了奥地利籍意大利家庭的最完美居所。唯一的不利条件在于私家室外空间的匮乏,在人口稠密的威尔曼城市,这是一种稀缺品。因此,一个小型的药草蔬菜花园加上室外休... 详细信息

任务,维也纳维登区所具有的历史性和与市中心紧密连接的地理位置,使其成为了奥地利籍意大利家庭的最完美居所。唯一的不利条件在于私家室外空间的匮乏,在人口稠密的威尔曼城市,这是一种稀缺品。因此,一个小型的药草蔬菜花园加上室外休闲餐桌的新阳台,成为了家庭起居空间的补充。

关键词：室外空间人口稠密维也纳紧密连接不利条件

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大型体育赛事交通总体规划框架及要点

城市交通 2021年第4期19卷 27-32,73页

作者： DI Gernot leitner 谢云侠奥地利MC迈思咨询公司奥地利萨尔茨堡5020 宇恒可持续交通研究中心北京100004

清晰、简洁且全面的大型体育赛事交通总体规划是赛事成功举办强有力的保障。它整合现有和未来可能使用的城市交通系统、交通网络系统、交通运营系统、相关机构及各客户群体,并在赛事交通与城市交通之间寻求平衡点。以2014年索契冬奥会和... 详细信息

清晰、简洁且全面的大型体育赛事交通总体规划是赛事成功举办强有力的保障。它整合现有和未来可能使用的城市交通系统、交通网络系统、交通运营系统、相关机构及各客户群体,并在赛事交通与城市交通之间寻求平衡点。以2014年索契冬奥会和2018年平昌冬奥会的奥运交通总体规划为案例,总结赛事交通总体规划的框架,剖析规划内容和要点,识别规划将面临的主要挑战。提出大型体育赛事交通总体规划应包含稳定的安保政策、准确的交通需求预测、合理的交通枢纽布局以及多场景方案;同时还应综合考虑赛时需求和赛后利用,既满足赛时需求,又为赛后留下最大化的可持续遗产。

关键词：大型体育赛事交通总体规划交通策略可持续交通

Recent Beam Developments with the LBNL 14GHz AECR-U Ion Source

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Chinese Physics C 2007年第S1期31卷 75-79页

作者： M.Galloway D.leitner C.M.Lyneis W.Cornelius Lawrence Berkeley National Laboratory BerkeleyCA94705USA Scientific Solutions Inc. San DiegoCAUSA

A radial sputter probe has been developed for the AECR-U as an additional method of producing metal ion *** voltage is applied to the probe to incite collisions with target atoms,thereby sputtering material into the *** sputter probe is positioned through one of the 6 radial access slots between the permanent hexapole structure of the *** probe position can be varied with respect to the inner edge of the hexapole magnet *** state distributions and peak beam intensities at bias voltages up to-5kV were obtained for gold samples at varying distances of the probe with respect to the *** high charge states production the radial position with respect to the plasma was more sensitive than for the medium and lower charge *** high charge state ion production the probe was optimized at a distance of 0.6cm inside the chamber wall(4.1cm from the center of the chamber).Stable beams with peak intensities of up to 28eμA of Au^(24+) and 1.42eμA of Au^(41+) have been produced using the sputter probe technique. In addition,a solid state circuit under development by Scientific Solutions,Inc which provides a bandwidth up to 100MHz was used to drive the 14GHz klystron amplifier for the LBNL AECR-U ion *** broadband and discrete heating modes were tested and the results for high charge state ion production were compared with single frequency heating.

关键词： ECR ion source high charge state metallic ions broadband microwave

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DREF 3型纺纱机纺弹力纱

国外纺织技术(纺织分册) 1986年第9期 28-28页

作者： J.leitner 葛怡

近年来,经、纬向和双向弹力织物发展很快,并出现在机织服装市场上,特别是包括粗斜纹布和灯芯绒的家常服装方面。为了满足弹力织物对弹性、耐用性、弹力拉伸性等方面的高要求,采用了以弹力长丝为纱芯、外面包覆短纤维的纱或多根纱合股的... 详细信息

近年来,经、纬向和双向弹力织物发展很快,并出现在机织服装市场上,特别是包括粗斜纹布和灯芯绒的家常服装方面。为了满足弹力织物对弹性、耐用性、弹力拉伸性等方面的高要求,采用了以弹力长丝为纱芯、外面包覆短纤维的纱或多根纱合股的纱线。

关键词：弹力纱生产成本弹性纱 DREF 3 纺纱机纺织机械