Results 41 to 50 of about 9,802 (167)
<原著>病院で使用中のネブライザーの細菌汚染の実態 [PDF]
病院で使用中のコンプレッサー型ネブライザー34 台,超音波ネブライザー5 台について細菌汚染に関する調査を行った。コンプレッサー型ネブライザーの連結管については調査した5 病院のすべての病院で再生利用を行っており,嘴管の洗浄は3 病院で食器洗浄機を使用していた。細菌汚染調査を行ったところ,コンプレッサー型ネブライザーの連結管から5 台(15%),エアロゾルから11 台(32%)に一般細菌が検出された。超音波ネブライザーでは作用槽から9 台(100%),薬液槽から7 台(78%),エアロゾルから6 台 ...
河合, 悦子, 田辺, 文憲
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ABSTRACT This study successfully prepared a high‐palladium (Pd)‐loading (51 wt%) Pd/Al2O3 composite through multiple wet impregnation. The material exhibited excellent hydrogen isotope separation performance, with metal–support interactions endowing it with a higher plateau pressure and lower desorption temperature.
Long Liang +10 more
wiley +1 more source
ABSTRACT Formic acid (FA) is considered to be a safe and convenient hydrogen source; however, achieving controlled and efficient FA dehydrogenation under mild conditions using stable solid catalysts remains a significant challenge. Pd‐based catalysts have been extensively studied due to their superior catalytic activity to other metal catalysts.
Shuai Wei +10 more
wiley +1 more source
针对温度保险丝与ZnO压敏电阻在串联使用中的性能问题,通过对温度保险丝与ZnO压敏电阻热保护配合工作原理的理论分析,利用(8/20μs)雷电冲击平台及热稳定测试装置分别将温度保险丝以及温度保险丝与ZnO压敏电阻串联后进行实验,并将实验数据进行分析,得出温度保险丝与ZnO压敏电阻进行热保护配合时的冲击耐受能力大于温度保险丝单独使用时的情况,而器件整体的残压会相应的增加的结论;在热稳定试验中,不同型号的温度保险丝和ZnO压敏电阻进行热保护配合时,在固定电流的作用下 ...
李祥超 +4 more
doaj
Fast liquefaction of bamboo shoot/bamboo processing wastes by polyols with plasma-assisted technology [PDF]
全球能源危机和环境问题使生物质的利用成为当今世界的研究热点。生物质液化是具有发展前景和工业化应用潜力的生物质转化技术之一,近年来发展迅速,然而简化液化反应条件以提高经济效益仍然是亟待提升和解决的关键问题。本文通过引入低温等离子体技术辅助生物质液化,在无外加热条件下,实现了笋壳和竹屑的常压快速液化,主要内容如下: 1.利用液相微等离子体技术在浓硫酸催化下对笋壳和竹屑进行多元醇(PEG400和EG混合液)液化研究。首先,通过单因素实验研究液化时间、催化剂用量、液固比、PEG/EG体积比等对液化的影响 ...
周儒森
core
Read the free Plain Language Summary for this article on the Journal blog. Abstract Studies have shown that organisms may adjust metabolic rates in response to thermal variability, highlighting metabolic plasticity as a key adaptive mechanism. Understanding the extent of metabolic plasticity of an organism is key to predicting its adaptation to climate
Qian Hu +6 more
wiley +1 more source
试验研究了国内4种电除尘器绝缘子的瓷材料从常温至500℃高温的弯曲强度。结果表明,在500℃以下它们的弯曲强度没有明显变化。因而,采用瓷材料的常温强度来设计工作温度500℃以下的绝缘子是可以的,用常温强度试验代替绝缘子高温强度试验也是可行的。
王云鹏 +5 more
doaj
基于光辐射的测温技术一般工作在热辐射较强的红外波段,基于光反射的测温技术虽然可以工作在可见光波段,但目前使用条件只限于暗环境下正入射单波长的光源,而电力设备工作在日光下难以使用该技术。文中通过数字图像处理技术和机器学习方法,将热调制光反射技术扩展到不需要正入射和固定光源的情况,利用日光实现常温电力金具表面温升识别。在日光下利用3种手机拍照建立了110 kV输电线路一种金具不同日光环境(每个温度下日光照度有3种)的图像库4 500幅,3种不同金具(每个温度下日光照度一种)的图像库每种金具1 500幅 ...
杜文娇, 叶齐政, 袁哲, 李辰盟
doaj
How much biotic nativeness matters across human demographic groups
Abstract Many central concepts of conservation biology—such as nativeness—are structured by ecological and social factors. However, the social consequences of using these concepts to make conservation decisions remain inadequately understood. Some researchers argue that nativeness, rather than acting as an objective proxy for important ecological ...
Harold N. Eyster, Rachelle K. Gould
wiley +1 more source
Study on characteristics of methane adsorption and thermodynamic in water-bearing shale [PDF]
Shale reservoirs generally contain water that has a significant impact on shale gas adsorption behavior and geological reserve evaluation. In order to explore the influence of water content on gas adsorption behavior in shale, an adsorption model ...
Bobo LI +5 more
core +1 more source

