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Characteristics of office lighting energy consumption and its impact on air conditioning energy consumption

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Energy and Built Environment 2024年第4期5卷 529-543页

作者： Siao Song Jibo Long Hanyu Jiang bin ran Lun Yao College of Civil Engineering Xiangtan UniversityXiangtanHunan 411105China

The energy consumption of office buildings has increased sharply since the 21st century with the increasing ur-banization *** this stage,the energy consumption of office buildings in China mainly comes from air conditioning and *** paper obtains the regression equation of natural lighting illumination and radi-ant heat gain under different curtain conditions through experiments and simulations,and gives the theoretical calculation process of curtain regulation of office thermal and light environment and energy *** and Ecotect software were used to analyze the thermal and light environment and energy consumption of the *** results show that setting curtains in the room can effectively improve the indoor thermal light en-vironment,the higher the transmittance of curtains the lower the lighting energy consumption,the higher the number of high temperature hours of natural room temperature and the greater the radiant heat *** room with thick curtains has the lowest energy consumption for air conditioning in summer,followed by the room with thin curtains,and the room without curtains has the highest energy consumption for air *** room without curtains has the lowest energy consumption for artificial lighting,the room with thin curtains has the second lowest,and the room with thick curtains has the highest electricity consumption for artificial *** air conditioning energy consumption accounts for the main building energy consumption,followed by the lighting energy *** setting curtains in the office,the air conditioning energy consumption caused by the solar radiation heat entering the room through the exterior windows is smaller than the lighting energy consumption caused by artificial ***,the installation of internal shading with moderate trans-mittance and good thermal insulation performance can make the energy saving of lighting and air conditioning energy consumption reach the

关键词： Curtains Light environment Thermal environment Energy saving

Anisotropy safety potential field model under intelligent and connected vehicle environment and its application in car-following modeling

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Journal of Intelligent and Connected Vehicles 2023年第2期6卷 79-90页

作者： Haozhan Ma Bocheng An Linheng Li Zhi Zhou Xu Qu bin ran School of Transportation Southeast UniversityNanjing 210096China

Potential field theory,as a theory that can also be applied to vehicle control,is an emerging risk quantification approach to accommodate the connected and self-driving vehicle *** have different risk impact effects on other road participants in each direction under the influence of road *** variability exhibited by vehicles in each direction is not considered in the previous potential field ***,this paper proposed a potential field model that takes the anisotropy of vehicle impact into account:(1)introducing equivalent distances to separate the potential field area in the different directions before and after the vehicle;(2)introducing co-virtual forces to characterize the effect of the side-by-side travel phenomenon on vehicle car-following travel;(3)introducing target forces and lane resistance,which regress the control of desired speed to control the acceptable risk of *** Next Generation Simulation(NGSIM)dataset is used in this study to create the model's initial parameter values based on the artificial swarm *** simulation findings indicate that when the vehicle is given the capacity to perceive the surrounding traffic environment,the suggested the anisotropic safety potential field model(ASPFM)performs better in terms of driving safety.

关键词： connected and automated vehicles car-following model potential field anisotropy trajectory estimation

Modelling of vehicle interaction behavior during discretionary lane-changing preparation process on freeway

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Journal of Southeast University(English Edition) 2018年第4期34卷 524-531页

作者： Nie Jianqiang Zhang Jian ran bin State Key Laboratory of Air Traffic Management System and Technology The 28th Research Institute of China Electronics Technology Group CorporationNanjing 210007China School of Transportation Southeast UniversityNanjing 211189China

In order to increase the accuracy of microscopic traffic flow simulation,two acceleration models are presented to simulate car-following behaviors of the lane-changing vehicle and following putative vehicle during the discretionary lanechanging preparation( DLCP) process, respectively. The proposed acceleration models can reflect vehicle interaction characteristics. Samples used for describing the starting point and the ending point of DLCP are extracted from a real NGSIM vehicle trajectory data set. The acceleration model for a lanechanging vehicle is supposed to be a linear acceleration *** acceleration model for the following putative vehicle is constructed by referring to the optimal velocity model,in which optimal velocity is defined as a linear function of the velocity of putative leading vehicle. Similar calibration,a hypothesis test and parameter sensitivity analysis were conducted on the acceleration model of the lane-changing vehicle and following putative vehicle,respectively. The validation results of the two proposed models suggest that the training and testing errors are acceptable compared with similar works on calibrations for car following models. The parameter sensitivity analysis shows that the subtle observed error does not lead to severe variations of car-following behaviors of the lane-changing vehicle and following putative vehicle.

关键词： vehicle interaction behavior discretionary lane-changing preparation process lane-changing vehicle following putative vehicle optimal velocity model

变革型领导、领导-部属交换与员工知识分享行为

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南京社会科学 2013年第11期 27-32页

作者：冉斌吉林大学商学院

本研究立足于相关理论,将变革型领导与员工的知识分享行为相联系,并探讨了领导-部属交换(LMX)在其中的作用机制。研究通过214份配对样本对模型进行了实证检验。结果表明:变革型领导、LMX与知识分享两两正相关;LMX在二者关系中起部分中... 详细信息

本研究立足于相关理论,将变革型领导与员工的知识分享行为相联系,并探讨了领导-部属交换(LMX)在其中的作用机制。研究通过214份配对样本对模型进行了实证检验。结果表明:变革型领导、LMX与知识分享两两正相关;LMX在二者关系中起部分中介作用。在人力资源管理启示中,讨论了本研究对管理实践的指导意义。

关键词：变革型领导领导-部属交换知识分享中介作用

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改进的基于安全距离的车辆跟驰模型

北京工业大学学报 2013年第9期39卷 1335-1342页

作者：杨达蒲云祝俪菱杨飞 ran bin 西南交通大学交通运输与物流学院成都610031 美国威斯康星大学麦迪逊分校土木与环境工程学院麦迪逊57316

由于经典的基于安全距离的车辆跟驰模型Gipps模型要求车辆行驶时恰好与前车保持安全距离,这是一个对车辆跟驰行为过分严格的约束,不符合实际情况,根据实际情况提出车辆跟驰距离是有关安全距离和前后车相对速度的函数,并据此建立了改进... 详细信息

由于经典的基于安全距离的车辆跟驰模型Gipps模型要求车辆行驶时恰好与前车保持安全距离,这是一个对车辆跟驰行为过分严格的约束,不符合实际情况,根据实际情况提出车辆跟驰距离是有关安全距离和前后车相对速度的函数,并据此建立了改进的基于安全距离的车辆跟驰模型.NGSIM数据经过处理后被用来标定Gipps模型和改进后的模型,在标定结果的基础上对模型进行了统计意义上和仿真预测能力上的模型评价.结果显示:改进后的基于安全距离的车辆跟驰模型比Gipps模型有更高的仿真精确,可以再现出宏观交通中的稳定交通流和冲击波等常见的交通现象,并且改进模型在一定程度上使交通流变得更加稳定.

关键词：交通运输工程车辆跟驰数学模型安全距离

车路协同环境城市快速路分流区通行能力提升策略

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交通运输工程学报 2022年第3期22卷 126-138页

作者：李锐冉斌曲栩河海大学土木与交通学院江苏南京210024 东南大学交通学院江苏南京211189

根据车路协同环境城市快速路分流区不同车型的自动、人工驾驶混合车流特征,引入动态加速度、可变换道概率改进元胞自动机模型车流运行规则;设计了考虑主路自动驾驶渗透率、大型车混入率、驶出自动驾驶渗透率、驶出车流率、出口匝道车道... 详细信息

根据车路协同环境城市快速路分流区不同车型的自动、人工驾驶混合车流特征,引入动态加速度、可变换道概率改进元胞自动机模型车流运行规则;设计了考虑主路自动驾驶渗透率、大型车混入率、驶出自动驾驶渗透率、驶出车流率、出口匝道车道数、换道决策点距离等因素耦合作用的分流区换道仿真试验;对比分析了多因素耦合作用下驶出车辆自由换道率、平均换道距离等指标影响程度,研究了城市快速路分流区道路通行能力变化规律;提出了基于可变换道决策点距离的分流区道路混合车流通行能力提升策略。研究结果表明:分流区驶出车辆自由换道率越高,道路通行能力越大;主路车流自动驾驶渗透率对通行能力的影响最为显著,自动驾驶环境可达到人工驾驶环境道路通行能力的2倍;出口匝道车道数对通行能力的影响不显著,2条出口匝道比1条出口匝道的通行能力提升约3%;换道决策点距离对通行能力的影响较为显著,车辆换道决策点距离从100 m增加到150 m时,分流区道路通行能力可提高9.6%~10.6%。可见,可借助移动式交通标志提前引导车辆换道决策,显著提高分流区道路通行能力。

关键词：智能交通系统车路协同改进元胞自动机模型换道影响分析分流区通行能力提升

A Deep Reinforcement Learning Based Car Following Model for Electric Vehicle

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智能城市应用 2019年第5期2卷 1-8页

作者： Yuankai Wu Huachun Tan Jiankun Peng bin ran School of Mechanical Engineering Beijing Institute of Technology No 5 yard South Zhongguanchun Road Beijing China School of Transportation Engineering Southeast University Sipailou 2 Nanjing Jiangsu China Department of Civil and Environmental Engineering University of Wisconsin-Madison1415 Engineering Drive Madison WI USA

Car following (CF) models are an appealing research area because they fundamentally describe longitudinal interactions of vehicles on the road, and contribute significantly to an understanding of traffic flow. There is an emerging trend to use data-driven method to build CF models. One challenge to the data-driven CF models is their capability to achieve optimal longitudinal driven behavior because a lot of bad driving behaviors will be learnt from human drivers by the supervised learning manner. In this study, by utilizing the deep reinforcement learning (DRL) techniques trust region policy optimization (TRPO), a DRL based CF model for electric vehicle (EV) is built. The proposed CF model can learn optimal driving behavior by itself in simulation. The experiments on following standard driving cycle show that the DRL model outperforms the traditional CF model in terms of electricity consumption.

关键词： autonomous electric vehicle car following model deep reinforcement learning trust region policy optimization

Wild type p53 increased chemosensitivity of drug-resistant human hepatocellular carcinoma Bel7402/5-FU cells

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Acta Pharmacologica Sinica 2004年第1期 78-84页

作者： Yu-xiu LI, Zhi-bin LIN, Huan-ran TAN Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100083, China

AIM: To study the effect of wild type (wt) p53 gene transfection on drug resistant human hepatocellular carcinoma (HCC) cells induced by 5-Fluorouracil (5-FU). METHODS: The cytotoxicity of anticancer drugs on Bel7402 and Bel7402/5-FU cells was assessed using SRB assay. p53 expression was detected at its mRNA level by RT-PCR assay and at its protein level Western blot or immunocytochemistry assay in Bel7402/5-FU cells transfected with either control vector or wt p53. AnnexinV-FITC/PI double labeled assay was performed to detect apoptosis. The chemosensitivity of Bel7402/5-FU cells transfected with wt p53 was assessed using SRB assay. RESULTS: Bel7402/ 5-FU cells exhibited cross-resistance to vincristine, doxorubicin, paclitaxel, and so on. wt p53 gene transfection upregulated the expression of p53 in Bel7402/5-FU cells. wt p53 was able to greatly inhibit cell

关键词： hepatocellular carcinoma 5-Fluorouracil drag resistance apoptosis p53 genes transfection

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基于服务能力的服务企业绩效评价体系探析

商业研究 2013年第11期 86-91页

作者：冉斌吉林大学商学院长春130012

服务型企业的服务能力对其竞争力至关重要,但长期以来缺少一种综合性指标对服务能力进行评价。本研究采用综合性视角将服务能力统合为"一线员工+有形展示"的主客观层次,并结合运用层次分析法(AHP)、数据包络分析法(DEA)和AFA综合评价法... 详细信息

服务型企业的服务能力对其竞争力至关重要,但长期以来缺少一种综合性指标对服务能力进行评价。本研究采用综合性视角将服务能力统合为"一线员工+有形展示"的主客观层次,并结合运用层次分析法(AHP)、数据包络分析法(DEA)和AFA综合评价法,从企业财务绩效、员工服务能力及有形展示完备程度三个方面,构建了以服务能力为核心的服务企业绩效评价体系,以期为服务企业绩效评价提供一种普适性指标。

关键词：服务能力服务企业绩效评价体系