[Surgical treatment of allergic rhinitis]. [PDF]
Zhang RX.
europepmc +1 more source
[Application of modified V-Y advancement flap for reconstruction of facial defect]. [PDF]
Xu X, Tang M, Han L, Jiang B.
europepmc +1 more source
我国城市中压配网电容电流骤增,消弧线圈补偿能力不足导致接地故障电弧难以自熄问题突出;且城市复杂的线路走廊环境及配电网实际运行状态等因素导致单相接地故障特征不明显,易发生误选、漏选问题。文中对小电流接地系统单相接地故障快速熄弧和选线技术进行综述,首先对其暂态过程中和稳态下的故障点电流、中性点电压以及馈线零序电流等关键物理量进行理论推导,分析了接地电弧特性及数学模型。然后,阐述了常用熄弧装置的基本结构和工作原理,并针对无源电流型熄弧装置电容电流监测的准确性、消弧线圈调节的精度和时效性问题 ...
李景丽 +5 more
doaj
[Assessment of the Effect of Different Eyeglasses-Wearing Habits on Binocular Visual Function in College Students With Myopic Anisometropia With Naked-eye 3D Technology]. [PDF]
Yang J +5 more
europepmc +1 more source
[The VeSFADS structural classification of vestibular disorders]. [PDF]
Kong W.
europepmc +1 more source
[Comparison of efficacy and safety of transurethral thulium fiber laser enucleation of prostate in patients with different prostate volumes]. [PDF]
Zuo C +5 more
europepmc +1 more source
[Clinical practice guidelines for standardized low-temperature plasma radiofrequency ablation tonsillectomy and adenoidectomy in children]. [PDF]
Chinese MDAOOHANS.
europepmc +1 more source
由于配电网络的结构非常复杂,因此在进行故障电弧的准确分析时,传统的特征分析技术显得不够有用。为解决这一问题,文中采用多特征信息融合算法来进行配电系统的故障电弧分析。通过利用3种主要特征量脉宽百分比、变异系数和短时傅里叶分析来抽象地表征线路的电流特征,并基于主成分分析法构建一个故障电弧评估模型,将多个主要特征量的信息结合起来,得到一个可靠的故障电弧诊断指标,从而准确地识别出线路的可能存在的问题。测试结果发现,在正常状态与发生故障时,这种评估指标有很大的差异,并且容易确定阈值。此外 ...
芦翔 +4 more
doaj
[Open reduction and internal fixation in treatment of four cases of bipolar clavicle dislocations]. [PDF]
Gao P, Wang X, Bao H.
europepmc +1 more source
[Research advancements of motor imagery for motor function recovery after stroke]. [PDF]
Xu M, Wei Z, Ming D.
europepmc +1 more source

