Results 121 to 130 of about 840,959 (153)

[Effects of cold atmosphere plasma treatment on the biological behavior of human gingival fibroblasts]. [PDF]

open access: yesBeijing Da Xue Xue Bao Yi Xue Ban
Zheng M   +7 more
europepmc   +1 more source

[Medical treatment standards for emergency trauma wounded (2025 edition)]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
National Health Commission Of The People's Republic Of China.
europepmc   +1 more source

[Guangdong consensus on integrated Chinese and Western medicine management of prolonged disorders of consciousness]. [PDF]

open access: yesNan Fang Yi Ke Da Xue Xue Bao
Neurocritical Care Committee of Guangdong Provincial Association of Chinese Medicine.
europepmc   +1 more source

[Research progress on the acquisition technology of magnetocardiography]. [PDF]

open access: yesSheng Wu Yi Xue Gong Cheng Xue Za Zhi
Kang B   +5 more
europepmc   +1 more source

[Medical treatment standards for emergency burn wounded (2025 edition)]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
National Health Commission Of The People's Republic Of China.
europepmc   +1 more source

一种增强型高电子迁移率晶体管结构及其制作方法

open access: yes
本发明涉及半导体器件技术领域,公开了一种调制掺杂增强型高电子迁移率晶体管结构,该增强型高电子迁移率晶体管结构由下至上依次包括:衬底、GaAs/AlAs超晶格层、GaAs量子阱层、Al0.3Ga0.7As层、AlxGa1-xAs层(x线性从0.3减至0.1)、Al0.1Ga0.9As层、GaAs层、源漏电极以及栅电极。本发明还公开了一种增强型高电子迁移率晶体管的制作方法。利用本发明,降低了HEMT器件的功耗,简化了制作工艺 ...
谈笑天, 郑厚植
core  

对二氧化硫气体进行检测的装置及方法

open access: yes
本发明公开了一种对二氧化硫气体进行检测的装置及方法,该装置由量子级联激光器(1)及其驱动电源(7)、ZnSe透镜(2)、气室(3)、双路麦克风电源(4)、锁相放大器(5)和计算机(6)构成;其中,驱动电源(7)激励量子级联激光器(1)发射波长为7.36微米的中红外光,该中红外光经ZnSe透镜(2)会聚为平行光并进入气室(3),在气室中产生声信号,由气室中一对高灵敏度麦克风分别收集并传递给双路麦克风电源(4),把声信号转化为电信号,产生的电信号输入锁相放大器(5)进行差分和信号提取,最后由计算机(6 ...
刘峰奇   +3 more
core  

激光程控气体浓度检测系统及检测方法

open access: yes
一种激光程控气体浓度检测系统,包括:一程序控制处理器;一程控电流源通过连线与程序控制处理器通讯;一柱形气室的一端的中心安装有法兰装置;一长波长激光器的一端通过光纤将光耦合进柱形气室的法兰中,另一端与程控电流源连接;一光电探测器安装在柱形气室的另一端;一微电流检测计采集光电探测计上的电流信号,该微电流检测计与程序控制处理器通讯;一信号发生器将调制信号加载在程控电流源上,该信号发生器与程序控制处理器通讯;一锁相放大器采集光电探测计上的信号 ...
鞠昱   +5 more
core  

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