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The authors theoretically studied the entropy generation during heat transfer of a pin fin array in channels with lateral ejection holes for a turbine blade. The entropy generation model was established based on the second-law analysis. The distribution of the entropy generation due to heat transfer and fluid friction irreversibility respectively was analyzed and a comparison was made for three typical...
Standard Test Conditions(STC) are widely used as PV measurement standard for the PV manufacturers to define the technical characteristics of solar PV modules in their laboratory and for the PV system designers and installers to compare different PV modules under the same testing conditions, e.g. solar irradiance(1000W/m2), cell temperature at 25°C and Air mass(AM) 1.5. However, the actual performance...
Android is an integrated open platform for mobile devices provided by Google Inc.. It includes operating system, middleware and some key applications. It has also an excellent development and debugging environment. In order to enable the ListView, an Android application development widget, to display images and data from database, a customized layout file and extend class are used to implement a customized...
Graphical user interface (GUI) has become an important part of current software. But it is difficult for conventional test methods to test GUI due to the large number of states and the complexity among the events interaction. This paper presents an event interaction structure to model GUI and an algorithm to generate GUI interactive test cases. In this structure, the interaction relationships among...
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