With the wide application of laser cutting technology, undoubtedly the quality and efficiency of laser cutting are the most important two factors. In laser cutting process, especially 3D laser cutting, the distance between the cutting head with work piece and the verticality of laser beam axis with processed surface impact efficiency and quality seriously. At
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Two-phase flow is widely existed in nature and many engineering technology, and dueto the mass transfer and chemical reactions between phases along with the flow of two-phasefluid, make itself have the diversity and complexity, therefore it has been be regarded as a”hard” fluid in the research work. In a wide variety of production field, the
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Horizontal well, which rapidly developed at the end of the 20th century in China, can improve oil well production and the efficiency of the development. Usually a horizontal well cost as 2.5 to 3.5 times as a vertical well with the same depth, but oil production of the former can increase 1.4 to 9.2 times,
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Abrasion is one of the main factors that affect machinery equipment’s reliability and working life-span. Particles produced by abrasion are important information carriers which reflect the abrasion status inner a machine. Lubricating oil has the important function of lubrication, seal and rinse. When lubricating oil is circulating, the particles move within it. Monitoring the particles
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The moisture content testing system of this article is based on the premise of building energy-saving, to provide an important parameter – the moisture content of the building envelope thermal performance for the construction sector. It is an important part of revising its thermal properties to accurately measure the moisture content along the depth direction
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As a “difficult flow”, two-phase flow has become a hot-research in recent years. To realize the non-separated measurement of two-phase flow has great economic senses. Currently, non-separated measurement of two-phase flow is still at the experimental stage at home and abroad. So carry out the in-depth study on the non-separated measurement of two-phase flow has
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Two-phase flow is widely existed in nature and many engineering technology, and due to the mass transfer and chemical reactions between phases along with the flow of two-phase fluid, make itself have the diversity and complexity, therefore it has been be regarded as a “hard” fluid in the research work. In a wide variety of
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The People’s Republic of China is a country of relatively meager forest resources. How to use wood efficiently has an important economic and social significance. Strict quality detection of forest product materials is the prerequisite to ensure the efficient use of wood. According to statistics, seventy-five percent of wood quality problems are caused by inaccurate
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