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Journal of Mathematics, Volume 2021, Issue 1, 2021., 2021 Fractional order research has interdisciplinary characteristics and has been widely used in the field of natural sciences. Therefore, fractional order research has become an important area of concern for scholars. This paper used 2854 literatures collected from China National Knowledge Infrastructure (CNKI) database from 2001 to 2020 as the data source
Yunfei Yang +4 more
wiley +1 more source
Mechanism of Repetitive Transcranial Magnetic Stimulation for Depression
General Psychiatry, Volume 30, Issue 2, Page 84-92, July 2018., 2018 Depressive disorder is one of the most common mental health problems currently. However, the mechanism‐based treatments for this disorder remain elusive. Repetitive transcranial magnetic stimulation (rTMS), a non‐invasive procedure that could stimulate electrical activity by a pulsed magnetic field in the brain, is considered to be an effective ...
Zhengwu Peng +7 more
wiley +1 more source
Ground-based observations of ghost green emissions and analyses of their excitation background [PDF]
Ghosts are a newly discovered category of transient luminescence events (TLEs) occurring in the middle and upper atmospheres above energetic thunderstorms.
Gaopeng Lu +3 more
core +1 more source
Fast Radar Forward-looking Super-resolution Imaging for Abnormal Echo Data [PDF]
Forward-looking imaging of airborne scanning radar is widely used in situation awareness, autonomous navigation and terrain following. When the radar is influenced by unintentional temporally sporadic electromagnetic interference or abnormal equipment ...
Dong WANG +6 more
core +1 more source
Dianci bileiqi, 2014 为防止雷电电磁脉冲或其他强电磁脉冲耦合过电压进入电源线毁坏电子设备,研究分析了电磁脉冲耦合的特点,设计了一种带双重隔离的单相交流电源隔离防护电路,并对实验电路进行仿真;依据仿真结果搭建了功率为2 k W的实验样机,并进行高电压检测。测试结果表明,该样机对雷电电磁脉冲和其它强电磁脉冲耦合过电压具有较好的防护效果,能有效提升雷达等武器装备的全天候作战能力,减小军事和经济损失。
蒋伟, 余明友, 胡沛, 夏亮
doaj
Deep Photoacoustic/Luminescence/Magnetic Resonance Multimodal Imaging in Living Subjects Using High Efficiency Upconversion Nanocomposites [PDF]
, 2017 肿瘤区域血管生成是肿瘤发生发展的重要进程。光声成像（PAI）特别适合用于观察肿瘤的血管。然而光声成像由于选用能量比较温和的激光器作为光源，故其成像范围相对较小。而在宏观层面上，荧光成像可以呈现小鼠全身的器官及肿瘤的解剖位置。然而荧光成像通常由于光的散射而导致空间分辨率较低，从而很难精确定位。虽然磁共振成像在影像诊断领域应用广泛，但是它需要精密昂贵的仪器并且数据采集非常耗时。因此结合光声、荧光和磁共振多种成像技术，能够更精准的获得更多疾病相关信息。 镧系元素摻杂的上转换纳米粒子（UCNPs ...
刘玉
core
Uncertainty Quantification of the Responses of Transient Electromagnetic Disturbance Coupling to Transmission Lines Based on Stochastic Models [PDF]
, 2023 L'abstract è presente nell'allegato / the abstract is in the ...
DONG, NING
core
Gaoya dianqi, 2018 电磁脉冲能通过天线、线缆、孔洞缝隙等途径,耦合非常高的能量进入电子设备,造成严重威胁。文中针对以太网数据通信端口的电磁脉冲防护问题,在介绍了传输线理论的基础上使用软件分别对平行双导线和双绞线进行了电磁仿真,设计了电磁脉冲防护模块,并通过实验验证了其良好的电磁脉冲防护性能。
王良, 宋政湘, 要文波, 肖佳
doaj
Nondestructive testing of lining thickness and nearside wall rock defect in srevice tunnel [PDF]
, 2013 为建设厦门城市快速交通干线,需要对钟鼓山原有隧道进行扩建。在拆除已有隧道衬砌和开挖外围围岩时,确定原有隧道衬砌厚度和外侧围岩的空洞、破碎、断裂等情况,对施工安全和施工方案制定非常必要。为此,采用探地雷达技术对原有隧道衬砌厚度和外侧围岩状态进行了检测。在隧道顶部布置三条沿隧道方向的检测线,用雷达探头分别对隧道的衬砌厚度和外部岩层缺陷进行探测,结果发现衬砌厚度很不均匀,厚度0.36~1.2米,多处与外部岩石直接接触。衬砌外侧有多处空洞、破碎、断裂或空洞伴有严重的破碎等危险情况存在 ...
李钢, 石建光
core
Gaoya dianqi, 2006 随着电磁武器的发展,电磁脉冲及其防护技术再次成为关注的焦点。简要介绍了核电磁脉冲模拟器的标准电场波形和脉冲源的组成及其基本原理,论述了脉冲分压器的设计。分析显示,所研制的新型电阻分压器可以减少响应时间和上升时间3ns以上。实验结果表明,该分压器可以用于上升时间为1ns以上脉冲的测量。研制的脉冲源的输出脉冲满足设计要求,峰值电压高于26kV,上升时间小于2.8ns,下降时间约55ns。
陈炜峰, 蒋全兴
doaj