Remote detection of buried land-mines and IEDs using LWIR polarimetric imaging

A model of remote detection of molecular air pollutants is devised based on the lidar equation. The various kinds of interaction of radiation with matter, viz. absorption, induced fluorescence, and Raman scattering, are taken into account; detection of either scattered or reflected signal is considered. The reflection is assumed to be either axial, using a retroreflector, or omnidirectional from a field target. Based on this model, an algorithm was set up for simulation of the different variants of the experiment, making allowance for a generally variable concentration of the compound along the optical pathway of the light beam. The basic atmospheric processes, viz. radiation absorption by the backround, heat emission, turbulence, and the effect of atmospheric aerosols, are treated, and the last of them is found to play the major role. Aerosols are looked upon as a source of the Mie scattering and they are described by distribution equations with respect to the particle size and the complex refractive index. The variable concentration of the aerosol along the optical pathway and the simultaneous effect of a higher numberof aerosol types are included.

Download Full-text

Partial Discharge Characteristic Analysis of Distribution Network Overhead Line Based on Remote Detection

2020 IEEE International Conference on High Voltage Engineering and Application (ICHVE) ◽

10.1109/ichve49031.2020.9279412 ◽

2020 ◽

Author(s):

Lijun Zhou ◽

Ye Tian ◽

Weijiang Chen ◽

Nianwen Xiang ◽

Yuanpeng Liang ◽

...

Keyword(s):

Partial Discharge ◽

Distribution Network ◽

Remote Detection ◽

Overhead Line ◽

Characteristic Analysis ◽

Discharge Characteristic ◽

Network Overhead

Download Full-text

Disarmament

The Oxford Handbook on the United Nations ◽

10.1093/oxfordhb/9780199560103.003.0017 ◽

2008 ◽

pp. 286-299

Author(s):

Keith Krause

Keyword(s):

International Relations ◽

Arms Control ◽

Land Mines ◽

International Peace ◽

Small Arms ◽

The World ◽

Peace And Security ◽

World Organization ◽

Light Weapons

This article evaluates the achievements and limitations of the world organization in the field of disarmament. It stresses the role of the UN as part of the efforts to control arms as a way to achieve international peace and security. It also notes specific cases where progress was achieved or not, as well as the more recent efforts to handle the problems of anti-personnel land mines and small arms and light weapons. The article also tries to draw out some of the broader implications for international relations of the UN experience with formal multilateral arms control, among others.

Download Full-text