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In this work, a simple and rapid high performance liquid chromatography tandem mass spectrometry (HPLC-MS/MS) method was developed and validated to carry out the simultaneous measurement of busulfan (BU) and phenytoin (PHT) in the plasma of children. In this method, plasma sample could be prepared by one-step protein precipitation using 1 mL of methanol/water (1:1, v/v). After centrifugation (14,500...
Most pornographic image recognition researches focus on detection accuracy. However, as the highly increasing of web data, detection speed becomes a new consideration. In this paper, the new issue is discussed from the following two aspects: 1) feature extraction in compressed domain and 2) classifier design, and then a simple, novel and yet effective pornographic image recognition method in compressed...
This paper studied the management and operator schema of spatial data based on metadata. The mining multi-scale DLG Data Organization and Management System is established by ArcEngine and Oracle as development platforms. The system can provide a convenient and intuitive data resource management platform for the mining production manager, and the database functions supplied effective access to the...
This paper proposes a lossless data hiding scheme with high embedding capacity, which can recover the original image without any distortion after the hidden data have been extracted. In this scheme, difference value of the adjacent pixels is calculated first. After adjusting the difference slightly, we can increase (decrease) it by 1 or maintain it intact to embed information into the cover image...
Ultra-wideband impulse radio (UWB-IR) sensor network has intensive military and commercial applications. However, the interference between UWB and other existed networks should be casually investigated. In this paper, we consider interference mitigation in UWB sensors in the context of cognitive radio (CR). Firstly, we suggest a general state transition model to characterize the working states evolution...
In this paper, we propose a closed form method to evaluate the read stability of an SRAM cell via quartic root finding. By utilizing a simplified MOSFET device model, we model SRAM cell stability by a system of quartic equations. The algebraic nature of the equations along with simplified region boundaries provide the insight that only a few combinations of device operating regions correspond to the...
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