Pictures in the Russian media showed many injured people lying on the frozen ground outside the Volgograd train station after the blast, which occurred near a metal detector just inside the main entrance. 俄罗斯媒体的画面显示,爆炸发生后,伏尔加格勒火车站外冻结的土地上躺着很多伤者。爆炸的具体位置是在大门内的金属探测器近旁。
As the particles hardly interact at all with other matter, they stream right through the ground, with only a very few striking the material in the detector and making a noticeable shower of particles. 因为中微子几乎不与其它物质相互作用,它们穿透土地流动,之中很小的一部分撞击在探测器上,成为可以观测到的粒子簇。
A Novel Ground Moving Target Detector in Dual-channel SAR Images Based on Adjacent Average and Orthogonal Projection 基于邻域平均和正交分解的双通道SAR图像域慢动目标检测方法
When these excited atoms return to the ground state, they will emit energy of a characteristic wavelength. The monochromator can direct these wavelengths to a detector. 当这些激发的原子回到基态时,会发射特征波长的能量。单色器可把这些波长引到检测器。
Round array parameters of passive ground electrostatic detection systems comprise the detection round array radius, detector number of the array and the electrode size. 建立了平面介质被动式静电探测系统的物理模型,给出探测电极所在空间电场强度的计算公式。
Anti-jamming of ground and cloud algorithm for low altitude infrared detector system 红外探测系统抗地物及云层算法研究
This paper analyzes the background of detection for high frequency ground wave over-the-horizon radar, discusses the performances of constant false alarm rate detector, provides a method to solve the problem of multiple targets and fluctuate clutter, introduces a efficient parallel detection system composed of transputers. 分析了高频地波超视距雷达信号检测的背景,讨论了恒虎警检测器的性能,提出了解决多目标与起伏杂波效应的方法,介绍了使用晶片计算机构成的并行检测处理系统。
The results show that it is feasible to implement quantum key distribution between a ground station and a satellite in a low earth orbit and that it is the detector dark noise and the space optical environment that limit the link distance for free-space quantum key distribution. 结果表明,在低轨卫星地面站间进行量子密钥分配是可行的,限制自由空间量子密钥分配链路距离的主要因素是探测器暗噪声和空间光学环境。
Ground on this view, a Micro Electro Mechanical System ( MEMS) based azimuth level detector composed of 3 axis micro accelerometer and 3 axis micro magnetometer is designed. 本课题在此基础上,利用微机电系统(MEMS)技术,设计了由微机电传感器组合而成的微型方位水平仪,该系统由三轴微加速度计和三轴微磁强计组成。
A New Ground Moving Targets Detector in Dual-Channel SAR Images 一种在双通道SAR图像域实现地面运动目标检测的方法
Analysis of Ground Clutter Suppression based on Spacial Signal Detector 地面回波抑制分析
To meet the requirement of detecting long transporting underground metal pipeline, a ground electromagnetic detection technique is presented, which is composed of pipeline electric current detection system, pipeline locating indicator, frequency analysis type leakage detector and hydrogen leakage detector, and etc. 本文根据埋地长输金属管道检测的实际需要,提出了主要由管道电流检测系统、管道定位仪、频率分析型检漏仪、氢气查漏仪等组成的地面电磁检测技术。
Accumulation of radon in the ground detector cups 地下探杯中氡的积累规律
Analysis of Effect of Ground Inducted Electric Field on Electrostatic Detector 地面感应电场对静电探测器影响分析
We used partitioning method in ground detector of aeronautical equipment for realizing rapid test of aeronautical equipment on the ground. 针对航空设备地面测试的快速性要求,叙述了在航空设备地面检测仪器中应用分割法进行快速检测的原理;
Ground calibration system for sz-3 atmospheric density detector and atmospheric composition detector 神舟三号大气密度探测器、大气成分探测器地面校准系统
Round array parameters of passive ground electrostatic detection systems comprise the detection round array radius, detector number of the array and the electrode size. Influence of the round array parameters to the precision of location are studied first with the help of error theory. 对于采用平面圆阵布设的被动式地面静电探测系统,根据误差理论分析结果研究了其阵列参数,即探测阵列半径、探测阵列的阵元个数以及探测器电极尺寸对探测阵列目标定位精度的影响;
At the same time, a task of orbit measure, telemetry, telecontrol and communication must be actualized between ground station and detector in this system. 同时需要与地面站进行测控系统的测轨、遥测、遥控和通信。
The correlation technology of the seismic while drilling in this paper mainly includes reference signal autocorrelation and the cross-correlation between reference signal and the ground detector signal. 本文研究的相关技术主要包括先导信号的自相关和先导信号与地面检波器信号间的互相关。