电弧的物理过程及电弧与气流、磁场、绝缘和触头材料的关系,对开关产品的质量影响很大。尽管目前对电流的开断过程的认识有了很大进展,但仍然有一些影响电弧过程的因素尚未被认识,致使在开关设计上还远远没有一种将影响电弧过程的各种因素都考虑进去的设计方法。进一步认识这些未知的因素,对电弧理论的发展,有着决定的作用。
doaj
[Clinical characteristics and influencing factors of extraglandular invasion of prostatic ductal adenocarcinoma]. [PDF]
Yang X, Zhang F, Ma L, Liu C.
europepmc +1 more source
[Regional distribution differences and influencing factors of primary healthcare institutions in China]. [PDF]
Ni P, Wang J, Shi L, Xu L.
europepmc +1 more source
[Influencing factors of cognitive function decline in elderly patients with type 2 diabetes mellitus]. [PDF]
Zeng H +5 more
europepmc +1 more source
[Influencing factors of olfactory impairment in OSA and construction of nomogram prediction model]. [PDF]
Zhao Y, Lyu Z, Guo Q, Rong Z, Luo X.
europepmc +1 more source
[Short-term efficacy and influencing factors of systemic antibiotics as an adjunct to mechanical periodontal therapy for stages Ⅲ/Ⅳ periodontitis]. [PDF]
Pan L +6 more
europepmc +1 more source
【目的】 探讨感染性心内膜炎(IE) 住院死亡的主要影响因素? 【方法】 对207例1997年1月至2006年12月住院治疗的IE患者的可能导致住院死亡的影响因素进行回顾性分析?对可能与IE住院死亡的相关因素分别行二项分类logistic 回归分析,在单因素分析的基础上,对单因素Logistic回归分析中有意义的因素进行多因素逐步向前(Wald)Logistic回归分析?
doaj
[Current status and influencing factors of sleep disorders in school-age children with asthma]. [PDF]
Wei JH, Ju YB.
europepmc +1 more source
[Factors affecting tumorigenicity in liver cancer xenografts]. [PDF]
Chai MY +6 more
europepmc +1 more source
[Risk factors of wet ear and its impact on surgical outcomes of endoscopic type Ⅰ tympanoplasty]. [PDF]
Zhu Z +6 more
europepmc +1 more source

