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The feasibility of SiC optoinjected Buried Charge-Coupled Devices has been studied by means of computer simulation. The transfering and the signal charge storage characteristics of the devices have been demonstrated. For a device with optimized structure parameters, the stored electron number per unit area is up to ∼ 1.746×1011 cm−2 and the stored electron is 2.262×107 electron. The device reaches the highest response at the wavelength of 290 nm, and it can work stably in wave range of 200 nm ∼ 290 nm. Therefore it will be beneficial to the detection of solar-blind region. Device can detect a ultraviolet light with power density as low as 0.001 mW/cm2 and area density of the stored electrons is 1.592×1010 cm−2 when light power density is changed.

Service discovery is the process to find a service that is best meet the user's requirement. Context of the user and the service plays an important role during the process because it takes into consideration more about the user and the service. In order to better implement the personalization of service discovery, and take into full consideration of the user's requirement and feature, a context-based framework for web services discovery is proposed in this paper. User Model and Intention Model are used in our framework to construct the user context. Service discovery and composition are carried out heuristically by considering both the user context and the web services context. And Service discovery is conducted by taking into account not only a published single web service but the combination of web services when a single web service can not be found. Service recommendation is also provided.

This system cored with a low power consumption mode of the MSP430F149 is equipped with a water content reflectometers, a automatic solar power supply module, GSM wireless asynchronous module, flow sensor module, Solenoid valves etc. to realize the functions of the orchard soil data's remote transmission and automatic precise irrigation. When achieved the lower limit of soil moisture[1] in the collection process, the Collection terminal uses the long-range wireless communications technology to send the humidity data collected by SMS to the user's phone to warm through the GSM module. On the actual situation, the users can reply by phone, and then the controller detects users' command, Anally uses fuzzy control technology for precise irrigation. Through the practical operation, it shows that the system is reliable and stable and remotes Human-Computer Interaction and precise irrigation. Also it meets the actual needs of a wide range of the orchard area's cabling inconvenience. Compared to manual irrigation methods, it saves 20% to 30% of the water and tests results significantly.