Results 61 to 70 of about 2,067 (102)

双断口真空断路器非同步关合直流预击穿特性

Gaoya dianqi
由于受各断口合闸操动分散性、触头表面状况迥异、真空间隙击穿电压的分散性等影响，双断真空断路器的关合预击穿现象往往表现为各断口的非同时预击穿。现阶段仍缺乏串联真空间隙的非同步关合预击穿特性相关研究，文中目标是实验研究双断口真空断路器非同步关合的预击穿开距和预击穿电压分布的特性。实验以两个串联连接的12 kV商用真空灭弧室为研究对象，设置4组关合实验条件：两个断口同步关合、低压侧比高压侧快1 ms关合、高压侧比低压侧快0.5 ms关合、高压侧比低压侧快0.2 ms关合 ...
王毅钊, 陈兴贵, 韩寅峰, 左晓婧, 耿云, 姚晓飞   +5 more
doaj  

[Thoughts and Prospects on Precision Control and Intelligent Positioning Robotic Systems Applied in Nasojejunal Feeding Tube Placement]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Qiu Y, Hong R, Xiang G, Hong D, Zhang Y, Li K, Qian H, Dian S, Li K, Pu W.   +9 more
europepmc   +1 more source

[A Transformer-based model using laboratory indicators efficiently differentiates ovarian cancer]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Tan S, Zhuo L, Zeng M, Huang F, Zhu J, Cai G, Zhen X.   +6 more
europepmc   +1 more source

[Bottlenecks and breakthroughs in gastric cancer diagnosis and treatment: Towards a new era of precision and intelligent integration]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Ji J, Wei J, Ji K, Bu Z.
europepmc   +1 more source

电容器组相控投切快速真空断路器关合策略研究

Gaoya dianqi
随着新型电力系统建设的持续推进，系统特性的变化要求变电站并联电容组无功投切更加频繁，但更适应于频繁投切场景的真空断路器，因涌流影响下重击穿概率高的问题而在高电压等级电容器组应用较少。为解决真空断路器在电容器组投切场景下的弊病，文中以快速真空断路器为基础，实验研究实际工频电压作用下真空断路器预击穿特性，分析关合工频电压预击穿瞬时值与触头开距的关系，获得电容器组投切快速真空断路器相控关合策略，确定了在1.21、1.43、1.83 m/s合闸速度条件下快速真空断路器关合预击穿绝缘强度下降率（RDDS）带状区域，
马飞越, 牛雨芊, 孙尚鹏, 姚晓飞, 牛勃, 蒋芮, 白涛   +6 more
doaj  

[Prior knowledge-guided and border-focused segmentation of ischemic stroke lesions]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Cui W, Wen Z, Shao H.
europepmc   +1 more source

[Hierarchical attention-driven multiple instance learning for clear cell renal cell carcinoma grading and staging in digital pathology]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Xu J, Mao Y, Zhang Y.
europepmc   +1 more source

[Brain-controlled unmanned aerial vehicle system based on meta brain computer interface open-source software platform]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Li A, Mei J, Chen W, Tao L, Xu M, Ming D.   +5 more
europepmc   +1 more source

[Swin-ResViT network for real-time generation of high-quality localization MR images from low-quality cine-MR]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Chen B, Wang X, Zhao X, Song T, Li Y.
europepmc   +1 more source

[Spatial omics in pulmonary fibrosis: advancing mechanistic insights and therapeutic strategies]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Peng Y, Xie Y, Yang F, Qiao X, Tian Y.
europepmc   +1 more source