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Nonlinear optical crystals are very important for laser frequency conversion. Potassium dihydrogen phosphate (KDP) is suitable for higher harmonic generation of huge laser systems for fusion experiments because it can be grown to larger sizes and also KDP has a high laser damage threshold. It has high optical nonlinearity, large temperature and angular allowance and it is non hygroscopic and mechanically...
The article deals with some results of determining the natural illumination and lighting quantity of horizontal and differently oriented vertical Earth's surface around Ulaanbaatar. We have studied the features and distribution of daily,monthly and annual course of direct (Es), diffuse (ED), total (EQ) natural illumination and the values of lighting quantity (ΣdE,ΣmE - sum of daily and monthly lighting)...
This paper describes the comparison of construction cost, maintenance cost and economic effect of two types of asphalt pavement structures, which was designed with and without geogrid.
Three-dimensional (3D) vision measurement technology based on encoding structured light plays an important role and has become the main development trend in the field of 3D non-contact measurement. However, how to synthetically improve measurement speed, accuracy and sampling density is still a difficult problem. Thus in the present work, a novel 3D measurement method based on temporal encoding structured...
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