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双相流细水雾抑制锂离子电池热失控蔓延试验研究
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作者 张培红 张鑫 +1 位作者 李子建 姜雪 《东北大学学报(自然科学版)》 EI CAS CSCD 北大核心 2024年第8期1185-1192,共8页
为抑制锂离子电池热失控及其蔓延,构建氮气与细水雾(NWM)双相流系统.通过改变系统施加压强和作用时间,对比分析电池表面温度和附近烟气体积分数以及NWM的冷却功率和电池模块的热量累积,阐述NWM系统抑制锂离子电池模块热失控蔓延的机制... 为抑制锂离子电池热失控及其蔓延,构建氮气与细水雾(NWM)双相流系统.通过改变系统施加压强和作用时间,对比分析电池表面温度和附近烟气体积分数以及NWM的冷却功率和电池模块的热量累积,阐述NWM系统抑制锂离子电池模块热失控蔓延的机制及有效性.结果表明,在NWM冷却电池模块表面和窒息机制的协同作用下,电池模块射流火的持续时间显著降低;且NWM压强越大,作用时间越长,会使电池表面的最高温度越低,相邻电池之间TR蔓延的时间间隔越长,表明NWM抑制锂离子电池热失控蔓延的有效性显著增强. 展开更多
关键词 锂离子电池 热失控 氮气 细水雾 冷却作用 窒息机制
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Jumbo biopsy is useful for the diagnosis of colonic prolapsing mucosal polyps with diverticulosis 被引量:1
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作者 Shingo Kato Kazutoshi Hashiguchi +5 位作者 Ryuichi Yamamoto Mitsuru Seo Takashi Matsuura Kazuro Itoh Akinori Iwashita Soichiro Miura 《World Journal of Gastroenterology》 SCIE CAS CSCD 2006年第10期1634-1636,共3页
We report here a case of multiple prolapsing mucosal polyps with diverticulosis in the sigmoid colon. A 52-year- old man was admitted to our hospital because of bloody diarrhea. Colonoscopy and barium enema showed mul... We report here a case of multiple prolapsing mucosal polyps with diverticulosis in the sigmoid colon. A 52-year- old man was admitted to our hospital because of bloody diarrhea. Colonoscopy and barium enema showed multiple diverticula, markedly thickened mucosal folds and polypoid lesions with mucus on the top of them in the sigmoid colon. Endoscopic ultrasonography showed thickening of the mucosal and submucosal layers. Several endoscopic biopsy specimens were taken from the polypoid lesions. Histological examination revealed only chronic inflammatory cell infiltration. In order to obtain a definite diagnosis, we performed endoscopic jumbo biopsy for the polypoid lesions after obtaining informed consent. Histological examination revealed marked lymphocyte infiltration, hemosiderin deposits and fibromuscular obliteration in the lamina propria, features similar to those of mucosal prolapsing syndrome. After anti-diarrhetic treatment, clinical findings were improved. Thus, jumbo biopsy is useful for diagnosis and treatment of prolapsing mucosal polyps. 展开更多
关键词 Colon DIVERTICULUM Jumbo biopsy Prolapsing mucosal polyp
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