期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
EFFECT OF DIFFERENT ELECTRIC STIMULATION ON ECG
1
作者 Fansan Zhu bohao chen +2 位作者 Jiarui Lin Xiemei Lin Su Tan(Department of BioengineeringHuazhong University of Science & TechnologyWuhan, 430074, China) 《Chinese Journal of Biomedical Engineering(English Edition)》 1995年第3期147-149,共3页
——This paper presents a new method of electrochemical treatment (ECT) for cancer. The method of direct electrochemical treatment (DECT) has same technical problems. Oneof the problems is that the heart rhythm will b... ——This paper presents a new method of electrochemical treatment (ECT) for cancer. The method of direct electrochemical treatment (DECT) has same technical problems. Oneof the problems is that the heart rhythm will be disturbed by stimulating current when the electrodes are placed in the tumor near heart. In this paper we used the R wave synchronizing electricpulses treatment (RSEPT) to elimina ie the effect on heart rhythm in period of treatment. 展开更多
关键词 STIM
下载PDF
压缩载荷下新型折纸结构的吸能特性研究
2
作者 唐勇 李奇奇 +4 位作者 苗秀娟 陈博浩 尹来容 刘鑫 顾成波 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2024年第5期116-140,共25页
受折纸形状的启发,通过单折纸单元结构(SOSs)的排列获得了两种折纸管。在准静态压缩载荷下,同向折纸管(SOT)的比吸能(SEA)值比反向折纸管(ROT)高13.46%.ROT显示了压缩旋转的变形模式,而SOT则是逐层破碎.通过折纸管和连接板的组合,提出... 受折纸形状的启发,通过单折纸单元结构(SOSs)的排列获得了两种折纸管。在准静态压缩载荷下,同向折纸管(SOT)的比吸能(SEA)值比反向折纸管(ROT)高13.46%.ROT显示了压缩旋转的变形模式,而SOT则是逐层破碎.通过折纸管和连接板的组合,提出了两层、三层和四层的折纸结构,它们的能量吸收效率明显高于折纸管。这些折纸结构表现出稳定的变形模式,主要是轴向压缩、扭转和混合变形模式.具有四个ROT的折纸结构(4R)的变形模式与麻花的形状相似.关于两层结构,由反向SOT(RSOT)和SOT组成的折纸结构的SEA值明显高于由ROT和SOT以及ROT和RSOT组成的折纸结构.此外,两层折纸结构的压缩性能明显优于三层和四层折纸结构.具有两个RSOT和两个SOT的两层折纸结构(2RS2S)的SEA值分别高于具有四个A细胞的三层折纸结构(4A)和具有一个C细胞和三个D细胞的四层折纸结构(1C3D)68.05%和64.48%.总之,这些折纸结构表现出卓越的机械性能,在吸能结构中具有广泛的应用潜力. 展开更多
关键词 能量吸收效率 变形模式 折纸 单元结构 压缩载荷 连接板 吸能结构 轴向压缩
原文传递
Synaptic degeneration in the prefrontal cortex of a rat AD model revealed by volume electron microscopy
3
作者 Yi Jiang Linlin Li +7 位作者 Keliang Pang Jiazheng Liu bohao chen Jingbin Yuan Lijun Shen Xi chen Bai Lu Hua Han 《Journal of Molecular Cell Biology》 SCIE CAS CSCD 2022年第3期61-64,共4页
Alzheimer’s disease(AD),a neurodegenerative disease,is identified as the most common cause of dementia(Goedert and Spillantini,2006).Typical symptoms of AD in neuropathology are closely associated with changes in syn... Alzheimer’s disease(AD),a neurodegenerative disease,is identified as the most common cause of dementia(Goedert and Spillantini,2006).Typical symptoms of AD in neuropathology are closely associated with changes in synapses and neurons(Serrano-Pozo et al.,2011).The prefrontal cortex(PFC)plays a crucial role in executive function,controlling the highest level of cognitive and emotional processes,and is also vulnerable to neurodegeneration in AD(Salat et al.,2001).While synaptic degeneration is believed to underlie the progressive decline of cognition in AD,specific changes in synaptic structures relevant to AD remain elusive due to a shortage of quantitative tools.Synaptic dysfunction,while key to AD pathophysiology,is difficult to monitor and study in human AD patients. 展开更多
关键词 DEGENERATION CORTEX ALZHEIMER
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部