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CPCM/液冷复合电池热管理方式优化设计 被引量:3
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作者 杜柏林 张甫仁 +1 位作者 李世远 张林 《包装工程》 CAS 北大核心 2022年第3期202-209,共8页
目的为了解决锂电池组在放电倍率为2.5 C,环境温度为308.15 K下工作时,其最高温度、最大温差可能超过适宜温度的情况。方法建立基于复合相变材料(CPCM)/液冷复合的电池组散热模型,首先通过实验测得锂电池单体相关性能参数,然后利用数值... 目的为了解决锂电池组在放电倍率为2.5 C,环境温度为308.15 K下工作时,其最高温度、最大温差可能超过适宜温度的情况。方法建立基于复合相变材料(CPCM)/液冷复合的电池组散热模型,首先通过实验测得锂电池单体相关性能参数,然后利用数值模拟方法讨论CPCM厚度对电池组散热性能的影响。分析得出当CPCM厚度在一定范围内变化时,单一的相变材料冷却方式不能将电池组最高温度控制在适宜的温度范围内,因此提出CPCM/液冷复合散热方式,以复合相变材料厚度、液冷通道间距、液体流速为设计变量,电池组最高温度和最大温差为优化目标进行多目标优化设计。结果结果表明,优化后的电池组最高温度和最大温差分别为316.88K和0.30K,满足设计要求,但相变材料在相变过程中存在泄露的风险。结论相较于单一的相变材料冷却方式,优化后的复合冷却模型能够大幅度降低电池组的最高温度,同时将最大温差控制在安全范围内;在保证散热模型最外层包装结构具有较高导热性的同时也要加强其结构设计,防止相变材料泄露。 展开更多
关键词 锂电池组 电池热管理 复合相变材料 液冷 多目标优化
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基于FDS的某公路隧道侧向集中排烟系统研究 被引量:6
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作者 张甫仁 林爱桢 袁园 《公路》 北大核心 2018年第12期307-311,共5页
利用FDS火灾动力学模拟软件对某公路隧道进行了模拟试验,研究了隧道侧向集中排烟系统中排烟口面积、排烟口排列方式、不同排烟风量以及纵向通风对烟气蔓延范围、烟气温度场分布、排烟口流量以及排烟口速度等对排烟效果的影响。结果表明... 利用FDS火灾动力学模拟软件对某公路隧道进行了模拟试验,研究了隧道侧向集中排烟系统中排烟口面积、排烟口排列方式、不同排烟风量以及纵向通风对烟气蔓延范围、烟气温度场分布、排烟口流量以及排烟口速度等对排烟效果的影响。结果表明,均匀排列方式的排烟效果优于按组排列的方式,排烟效率和排烟效能随着排烟风量的增加呈现出先增后减的趋势,因此,可得到较为合理的排烟口参数、排烟风量及较优的纵向风速,为采用侧向集中排烟系统的公路隧道在设计和研究排烟方案时提供一定的参考依据。 展开更多
关键词 公路隧道 侧向集中排烟 FDS 数值模拟 排烟效果
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Infliximab monotherapy for Chinese patients with moderate to severe plaque psoriasis: a randomized, double-blind, placebo-controlled multicenter trial 被引量:20
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作者 YANG Hai-zhen WANG Ke +11 位作者 JIN Hong-zhong GAO Tian-wen XIAO Sheng-xiang XU Jin-hua WANG Bao-xi zhang fu-ren LI Chun-yang LIU Xiao-ming TU Cai-xia JI Su-zhen SHEN Yang ZHU Xue-jun 《Chinese Medical Journal》 SCIE CAS CSCD 2012年第11期1845-1851,共7页
Background Tumor necrosis factor-α is a key mediator in the pathogenesis of psoriasis. Infliximab is a monoclonal antibody that specifically binds to tumor necrosis factor-α. The purpose of this study was to validat... Background Tumor necrosis factor-α is a key mediator in the pathogenesis of psoriasis. Infliximab is a monoclonal antibody that specifically binds to tumor necrosis factor-α. The purpose of this study was to validate the efficacy and safety of 5 mg/kg infliximab therapy in Chinese patients with moderate to severe plaque psoriasis. Methods In this multicenter, double-blind, placebo-controlled trial, 129 patients with moderate-to-severe psoriasis were randomized to the induction therapy (weeks 0, 2 and 6) with infliximab 5 mg/kg (n=84) or placebo (n=45), followed with infliximab 5 mg/kg scheduled at week 14 and week 22 in the infliximab group, and infliximab 5 mg/kg scheduled at weeks 10, 12 and 16 in the placebo group. The primary end point was the proportion of patients who achieved at least 75% improvement in Psoriasis Area and Severity Index (PASI 75 response rate) from baseline at week 10. Results At week 10, 81.0% of patients treated with infliximab (5 mg/kg) achieved a 75% or greater improvement compared with 2.2% of patients treated with placebo (P 〈0.001). A significant improvement in PASI, Physician's Global Assessment (PGA) and Dermatology Life Quality Index (DLQI), was seen from week 6 through week 14 in the infliximab group compared with the placebo group. Through week 22, PASI, PGA, DLQI were well maintained. The incidence of adverse events for the infliximab treatment group was slightly higher in comparison to the placebo treatment group during the first 10 weeks without statistical significance. However, there were 3 cases of tuberculosis that developed during the 26 weeks treatment with infliximal. Conclusions Infliximab treatment was effective as induction and maintenance treatments for Chinese patients with moderate to severe plaque psoriasis. Most drug-induced adverse events were mild to moderate, and well tolerated. Screening for tuberculosis is essential and prophylactic treatment should be given if necessary. 展开更多
关键词 INFLIXIMAB psoriasis biologics
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Chinese Experts Consensus on Pre-examination and Triage in Dermatology Clinics during the COVID-19 Outbreak
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作者 Ma Lin Wang Gang +21 位作者 Mu Qi-Ri Ran Yu-Ping Liu Quan-Zhong Xiao Sheng-Xiang zhang Xue-Jun zhang Jian-Zhong zhang fu-ren He Li Chen Ai-Jun Chen Xiang Zheng Jie Yang Rong-Ya Yao Zhi-Rong Tu Ping Li Yu-Zhen Gao Xing-Hua Xu Jin-Hua Gu Heng Cheng Bo Lai Wei Lu Qian-Jin Chinese Society of Dermatology 《International Journal of Dermatology and Venereology》 2020年第2期65-67,共3页
The SARS-CoV-2 infection has brought a great challenge in prevention and control of the national epidemic of coronavirus disease 2019(COVID-19)in China.During the COVID-19 epidemic,properly carrying out pre-examinatio... The SARS-CoV-2 infection has brought a great challenge in prevention and control of the national epidemic of coronavirus disease 2019(COVID-19)in China.During the COVID-19 epidemic,properly carrying out pre-examination and triage for patients with skin lesions and fever has become a practical problem encountered in hospitals for skin diseases and dermatology clinics in general hospitals.Some of the carriers of the SARS-CoV-2 and patients with COVID-19 in the early stage may not present with any symptoms of COVID-19,while certain other skin diseases can also cause fever.Therefore,to properly deal with the patients presenting at dermatology clinics,the Chinese Society of Dermatology organized experts to formulate principles and procedures for the pre-examination and triage of patients at dermatology clinics during the COVID-19 epidemic. 展开更多
关键词 SARS-CoV-2 COVID-19 FEVER skin disease pre-examination TRIAGE
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