A monitor system for drilling well is composed of three pressure sensors respectively for the impact, push force and torque of drill bit and a position sensor for the depth of drill bit. Said system can monitor 4 signal output from said 4 sensors and generate relative curve diagram.
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Gamma Fe2O3 (maghemite), alpha Fe2O3 (hematite) and Fe3O4 (magnetite) are the three commonly used iron oxides. These iron oxides are known to have many important technological applications, including application in the field of clinical medicine and electronics. Two general methods for producing iro.....
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This invention relates to a chemical entity isolated from natural sources for its therapeutic uses. More particularly, it relates to compound that is naturally occurring in the plant of Garcinia yunnanensis Hu and its biological activity of antitumor effects.
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Data as may be employed in telecommunication is segmented into blocks, each block having associated therewith a metric of distortion as a function of the number of bits in the block to represent the quality of the data contained in the block. Within the blocks, bits are ordered according to signifi.....
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In the recent decades, JPEG, MPEG 1 and 2, which employ Discrete Cosine Transform (DCT) for coding, are widely used. This trend keeps growing rapidly as handheld digital image/video cameras become more and more popular in recent years. On the other hand, another transform, Integer Cosine Transform.....
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