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Recently, using web search data to predict public health trends and economical indicators, like consumption, unemployment, tourism is arising more and more researchers interest. Based on the thought that web search data could reflect searchers' attention and concern, we study the correlation between housing price index and web search data, then make a comparative analysis of two regions with different...
Probabilistic topic models have has successfully been used to classify remote sensing images in unsupervised way. However, the relationship among pixels is ignored in these applications because of the assuption of “bag of words”. This assuption leads to “pepper and salt effect” when these models are used to classify Very High Resolution (VHR) remote sensing images. To solve this problem, a novel model...
Fusion of pre- and intra-operative imaging modalities allows the accurate targeting of prostate interventions. We propose a personalized statistical motion model (PSMM) for the deformable registration of prostate magnetic resonance (MR) and 3D transrectal ultrasound (TRUS) images. Comparing to traditional statistical motion model (SMM) methods, for the first time, the biomechanical information obtained...
This study primarily focuses on the simulation of an astronaut moving the orbital replaceable units (ORUs) into the worksites in spacecraft payloads or removing them from these worksites. The upper limb model is established, which includes three segments of upper arm, forearm, and hand, as well as three revolute joints of shoulder, elbow, and wrist. Joint kinematical parameters during one period were...
Land resource security has come to be a popular issue, and the researches mainly focus on static evaluation of the level of land resource security. But the growing lack of land resource caused by various factors requests us turning our researches on land resource security to dynamic adjustment and control urgently. This paper describes a specific directed graph model on which the model of land resource...
From the three basic character of the computer security: confidentiality, integrity, availability, the paper studies the Bell-Lapadula confidentiality model, the Biba integrity model, the Clark-Wilson integrity model and Chinese wall Model. This paper also studies the relation among three models of the Bell-Lapadula model, the Biba model and he Clark-Wilson model, studies the relation and distinguishes...
Four turbulence models including three k-?? related turbulence models (standard k-?? model, RNG k-?? model and realizable k-?? model) and v2-f turbulence model are performed for axisymmetric confined jets and the results are compared with the experimental data. As a source to evaluate the numerical results, the physical model consists of a sudden pipe expansion section, with an expansion ratio of...
In this article, we reported the progress of our research in molecular imaging. Two types of optical molecular imaging modalities are presented in the "Optical Molecular Imaging" section: fluorescence molecular tomography (FMT) and bioluminescence tomography (BLT). Nuclide medical imaging and probe studies in molecular imaging are studied in the "Nuclide Molecular Imaging" and...
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