Results 51 to 60 of about 2,872 (103)

[Infrared thermography-assisted design and harvesting of ultrathin anterolateral thigh perforator flaps]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zhang C   +7 more
europepmc   +1 more source

[Association between insulin resistance and idiopathic central precocious puberty in girls and the diagnostic value of insulin resistance]. [PDF]

open access: yesZhongguo Dang Dai Er Ke Za Zhi
Li JB   +8 more
europepmc   +1 more source

基于超声波信号的10kV架空线路下山火预警监测研究

open access: yesGaoya dianqi
架空导线下方山火灾害导致电力线路跳闸事故时有发生。目前山火防治监测主要依靠全天候卫星和视频监测,受天气等因素影响较大,实时性差,研究一种不受天气因素干扰的早期山火检测预警方法具有重要价值。通过搭建10kV线路山火放电超声波监测平台,以稻草、竹子和松树西南地区常见植被为10kV线路下方山火火源,利用超声波探头采集放电超声波信号与燃烧超声波信号并进行时频域分析。研究结果表明:频域下稻草与竹子火焰下放电超声波信号波峰集中在40kHz附近,主峰幅值分别为-86.54dB、-99.81dB ...
蒋卓峰   +4 more
doaj  

实心棒形瓷件的超声波探伤

open access: yesDianci bileiqi, 1973
超声波探伤是属于非破坏性检验法的一种。在机械制造和造船等工业领域内,应用超声波探测金属材料或制件内部的各种类型缺陷已极为广泛,而且探测方法很多,积累的经验也极为丰富。随着生产技术的发展,对高压电器和配电装置用瓷件提出了更高的要求,在电瓷工业中应用超声波探伤日益普遍 ...
doaj  

[Detection of neurofibroma combining radiomics and ensemble learning]. [PDF]

open access: yesSheng Wu Yi Xue Gong Cheng Xue Za Zhi
Liu Y   +6 more
europepmc   +1 more source

Home - About - Disclaimer - Privacy