摘要 :
In order to ensure the reliability of satellite data, it is necessary to test the authenticity of satellite products during the
operation of ocean color satellite in orbit. Therefore, it is significant to obtain accurate sea surfa...
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In order to ensure the reliability of satellite data, it is necessary to test the authenticity of satellite products during the
operation of ocean color satellite in orbit. Therefore, it is significant to obtain accurate sea surface field data, which can
provide source data for the authenticity test of satellite products. At present, the main means of acquiring data at sea in
China is still large-scale voyage test on board ships. This method needs high cost and requires a lot of manual operation,
and the efficiency of acquiring data is extremely limited. However, a large amount of observation data can be obtained by
establishing long-term automatic observation stations at sea, and the cost is low. In this paper, the continuous observation
data of atmospheric optical parameters obtained by CE318 solar photometer installed on Wenzhou offshore platform in
Zhejiang Province are analyzed based on the data processing method of AERONET. Combined with the actual situation,
the automatic observation data of atmospheric optical parameters at sea are qualitatively controlled and verified by satellite
data. Finally, a data quality control scheme for automatic observation of atmospheric optical parameters at sea is proposed.
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摘要 :
In order to ensure the reliability of satellite data, it is necessary to test the authenticity of satellite products during the
operation of ocean color satellite in orbit. Therefore, it is significant to obtain accurate sea surf...
展开
In order to ensure the reliability of satellite data, it is necessary to test the authenticity of satellite products during the
operation of ocean color satellite in orbit. Therefore, it is significant to obtain accurate sea surface field data, which can
provide source data for the authenticity test of satellite products. At present, the main means of acquiring data at sea in
China is still large-scale voyage test on board ships. This method needs high cost and requires a lot of manual operation,
and the efficiency of acquiring data is extremely limited. However, a large amount of observation data can be obtained by
establishing long-term automatic observation stations at sea, and the cost is low. In this paper, the continuous observation
data of atmospheric optical parameters obtained by CE318 solar photometer installed on Wenzhou offshore platform in
Zhejiang Province are analyzed based on the data processing method of AERONET. Combined with the actual situation,
the automatic observation data of atmospheric optical parameters at sea are qualitatively controlled and verified by satellite
data. Finally, a data quality control scheme for automatic observation of atmospheric optical parameters at sea is proposed.
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摘要 :
A 7A85 aluminum aviation component with high ribs and thin webs was successfully formed by the isothermal forging process, and its microstructure was investigated by optical microscope (OM), transmission electron microscope (TEM),...
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A 7A85 aluminum aviation component with high ribs and thin webs was successfully formed by the isothermal forging process, and its microstructure was investigated by optical microscope (OM), transmission electron microscope (TEM), and cellular automaton simulation. Metallographic images show the recrystallization phenomenon takes place all over the aviation forging, and a uniform grain size is obtained. The cellular automaton model of 7A85 aluminum alloy, including dislocation density model, nucleation rate equation as well as grain growth model was established, and the parameters of the cellular automaton models were determined by the hot compression experiment on the thermal-mechanical simulator Gleeble-1500. The cellular automaton simulation results agree well with the optical micrographs of the aviation forging, showing good homogeneity in both the size and the distribution of grain structure. The TEM images show that a homogeneous distributed dislocations and precipitates of the forging formed by the isothermal forging process can be attained, which can inhibit the migration of the grain boundaries, resulting in the small and uniform grains of the aviation forging.
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The fringe area of urban hills and rivers is an important aspect of urban landscape construction. Adhering to landscape environmental protection and the principle of the fringe effect in ecology, the ecological landscape planning ...
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The fringe area of urban hills and rivers is an important aspect of urban landscape construction. Adhering to landscape environmental protection and the principle of the fringe effect in ecology, the ecological landscape planning of Yang'an District Jiande City explores some new ideas by building an ecological landscape layout, creating an ecological landscape structure, and shaping ecological landscape techniques.
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The paper mainly presents an introduction to the three passes, the three staged separation-back feed and the unique combustion system with dishtype air distribution, as well as some auxiliaries, of a new type of circulating fluidi...
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The paper mainly presents an introduction to the three passes, the three staged separation-back feed and the unique combustion system with dishtype air distribution, as well as some auxiliaries, of a new type of circulating fluidized bed boiler, from the point of view Of design, construction and operation.
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摘要 :
The paper mainly presents an introduction to the three passes, the three staged separation-back feed and the unique combustion system with dishtype air distribution, as well as some auxiliaries, of a new type of circulating fluidi...
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The paper mainly presents an introduction to the three passes, the three staged separation-back feed and the unique combustion system with dishtype air distribution, as well as some auxiliaries, of a new type of circulating fluidized bed boiler, from the point of view Of design, construction and operation.
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摘要 :
Traditional cloud storage systems do not adapt well to different application environment and does not guarantee the integrity and confidentiality of cloud data. In order to solve the problems brought by the hysteretic and density ...
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Traditional cloud storage systems do not adapt well to different application environment and does not guarantee the integrity and confidentiality of cloud data. In order to solve the problems brought by the hysteretic and density in the cloud storage system, A Searchable Re-encryption Storage Method (SReCSM) is proposed in this paper. The central idea of the SReCSM is to generate a re-encryption key and decrypte while the keyword matched. Simulation results show that SReCSM introduced in this paper has better security and reliability.
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摘要 :
With the rapid development of China's private economy, performance evaluation of private listed companies have been closely-watched, so it's important that the choice of evaluation criteria related to the economic interests of man...
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With the rapid development of China's private economy, performance evaluation of private listed companies have been closely-watched, so it's important that the choice of evaluation criteria related to the economic interests of many stakeholders. We think the economic value added (EVA) is a new method for evaluation of corporate performance through literature review. Then according to importance principle, we detail the process of EVA's calculation. Finally, we use private companies listed on Shanghai and Shenzhen as a sample, and find that EVA evaluation index associate with the business performance is better than the traditional financial index through empirical methods of research, because it is better to reflect the true value of corporate creativity.
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摘要 :
With the rapid development of China's private economy, performance evaluation of private listed companies have been closely-watched, so it's important that the choice of evaluation criteria related to the economic interests of man...
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With the rapid development of China's private economy, performance evaluation of private listed companies have been closely-watched, so it's important that the choice of evaluation criteria related to the economic interests of many stakeholders. We think the economic value added (EVA) is a new method for evaluation of corporate performance through literature review. Then according to importance principle, we detail the process of EVA's calculation. Finally, we use private companies listed on Shanghai and Shenzhen as a sample, and find that EVA evaluation index associate with the business performance is better than the traditional financial index through empirical methods of research, because it is better to reflect the true value of corporate creativity.
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This paper take the development of virtual campus roaming system as an example. Aiming at the defects of the different kinds of bounding boxes collision detection technology, analyzes the advantages of the hybrid hierarchical boun...
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This paper take the development of virtual campus roaming system as an example. Aiming at the defects of the different kinds of bounding boxes collision detection technology, analyzes the advantages of the hybrid hierarchical bounding box collision detection algorithm based on spheres and oriented bounding box, and described the way to construct it. Finally, the algorithm is tested in the VC and Unity3d engine, a good result is obtained.
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