Results 71 to 80 of about 1,639 (114)

电瓷生产的季节性缺陷及其对策

open access: yesDianci bileiqi, 1992
阐述了季节对电瓷坯件和生产工艺过程的影响,重点分析了几种典型的季节性缺陷产生的原因及其防止办法,指出了在电瓷生产中控制微气候的重要性.
叶立茂, 路普生
doaj  

[The comparison of step-down pharmacotherapy and maintaining dose therapy for seasonal allergic rhinitis]. [PDF]

open access: yesLin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi, 2020
Li LS, Guan K, Wang ZX, Cui L, Xu YY.
europepmc   +1 more source

[Research status and hotspots of seasonal allergic rhinitis based on CiteSpace visualization analysis]. [PDF]

open access: yesLin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Tian H, Zhu D, Zhao B, Liu X, Meng C.
europepmc   +1 more source

[Clinical characteristics of allergic rhinitis induced by pollen in northern China]. [PDF]

open access: yesLin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
He S   +5 more
europepmc   +1 more source

[Epidemiological characteristics of respiratory syncytial virus infection in children in Hebei Province]. [PDF]

open access: yesZhongguo Dang Dai Er Ke Za Zhi
Wang X   +7 more
europepmc   +1 more source

贺兰山岩羊活动节律与家域特征

open access: yes野生动物学报
野生动物的活动节律和家域特征是其为适应内外环境变化而形成的生存模式,研究活动节律和家域特征有助于深入了解野生动物生态适应性,维护生态平衡,并有助于制定科学保护策略。因此,基于北斗卫星追踪项圈监测技术,深入研究了贺兰山岩羊(Pseudois nayaur)全年的活动节律和家域特征,以及不同季节、性别的个体差异。研究表明:(1)岩羊属于晨昏性动物(06:00—10:00、16:00—20:00),4个季节均表现为双峰模式的日活动节律;(2)岩羊全年的活动速率为(0.17±0.51) km/h ...
崔爽   +6 more
doaj  

[Association between airborne particulate matter(PM 2.5) concentration and the incidence of allergic rhinitis in Shanghai]. [PDF]

open access: yesLin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi, 2023
Sun N   +12 more
europepmc   +1 more source

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