An Empirical Study on Deliberate Murder in the Process of Urbanization

Deliberate murder is one of the criminal offences with the most severe social dangers, and has always been the focus of academic researches. From the perspective of urbanization construction, this article will make a detailed analysis on the historical trend of this crime, sort out and investigate the geographical features and perpetrators’ characteristics, and put forward feasible countermeasures for prevention and control to introduce a positive theoretical value and social significance in this regard

4D-CT Lung Registration and its Application for Lung Radiation Therapy

Radiation therapy has been successful in treating lung cancer patients, but its efficacy is limited by the inability to account for the respiratory motion during treatment planning and radiation dose delivery. Physics-based lung deformation models facilitate the motion computation of both tumor and local lung tissue during radiation therapy. In this dissertation, a novel method is discussed to accurately register 3D lungs across the respiratory phases from 4D-CT datasets, which facilitates the estimation of the volumetric lung deformation models. This method uses multi-level and multi-resolution optical flow registration coupled with thin plate splines (TPS), to address registration issue of inconsistent intensity across respiratory phases. It achieves higher accuracy as compared to multi-resolution optical flow registration and other commonly used registration methods. Results of validation show that the lung registration is computed with 3 mm Target Registration Error (TRE) and approximately 3 mm Inverse Consistency Error (ICE). This registration method is further implemented in GPU based real time dose delivery simulation to assist radiation therapy planning

Discovery enabled by in-situ synchrotron X-ray techniques

Understanding the complex mechanism of nanocrystal formation and transformation in solutions represents a challenge in materials science. For example, formation of colloidal noble metal nanocrystals from homogeneous liquid solutions involves many complicated processes that are poorly understood. The absence of enough knowledge of nanoparticle formation in liquid media is due to the difficulty in developing effective tools to “see through” solvents and probe chemical and physical events in the liquids. This situation also leads to challenging barriers that prevent the synthesis of functional nanoparticles with precisely tailored properties and better understanding of the dependence of nanoparticles’ performance on their physical parameters including shape and crystalline phase. The exceptional penetration power of the high-flux, high-energy X-ray beams in liquid solutions and reaction vessels (e.g., glass flasks) enables the direct probing of nanophase evolution in large-volume reactors that are usually used in conventional wet chemistry laboratories. The weak absorption of the high-energy X-ray beams in reactants and solvent molecules eliminates the possible side reactions during nanoparticle growth and transformation. As a result, time-resolved, high-energy synchrotron X-ray techniques represent one class of ideal methods for noninvasive probing of growth/transformation mechanism of colloidal nanocrystals in conventional reactors. In this presentation, the time-resolved high-energy synchrotron X-ray diffraction is demonstrated to monitor the nanophase evolution involved in the synthesis of colloidal Ag nanocubes and the physical/chemical transformation of colloidal Ag nanowires to nanoparticles/nanotubes. Use of the Center for Nanoscale Materials, a U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences User Facility under Contract No. DE-AC02-06CH11357

The Relationship between Political Participation and Rural Grassroots Units in China

Most of the researches hold that political participation has enhanced social supervision to reduce the corruption and raised recognition of people for the political system. In this paper we have choose three issues in “Statistics from the Ministry of Civil Affairs ” to do the multiple regression analysis. Finally, we found that the degree of villagers participation in the village’s affair and openness of administrative have an obviously affect on the degrees of approval to village officials of the villagers. As a result, we think the political participation have a magnificent influence on the valuation of political system

Triple condensate halo from water droplets impacting on cold surfaces

Understanding the dynamics in the deposition of water droplets onto solid surfaces is of importance from both fundamental and practical viewpoints. While the deposition of a water droplet onto a heated surface is extensively studied, the characteristics of depositing a droplet onto a cold surface and the phenomena leading to such behavior remain elusive. Here we report the formation of a triple condensate halo observed during the deposition of a water droplet onto a cold surface, due to the interplay between droplet impact dynamics and vapor diffusion. Two subsequent condensation stages occur during the droplet spreading and cooling processes, engendering this unique condensate halo with three distinctive bands. We further proposed a scaling model to interpret the size of each band, and the model is validated by the experiments of droplets with different impact velocity and varying substrate temperature. Our experimental and theoretical investigation of the droplet impact dynamics and the associated condensation unravels the mass and heat transfer among droplet, vapor and substrate, offer a new sight for designing of heat exchange devices

A Dynamic Study between Export from China to South Korea and Economic Growth in China

This paper applies annual data from 1998 to 2016 to search for the dynamic operating mechanism between export from China to South Korea and economic growth in China. The vector error correction model is utilized to conduct an empirical analysis. The results indicate that there is a long-run relationship between them. In more specifically, if the export from China to South Korea increases by 1 per cent, the economic growth in China will increases by 0.769 per cent. Meanwhile, the result of Granger causality test also reveals that there is an unidirectional causality between them exists under 5 per cent significance level. More importantly, the result of vector error correction mechanism shows that when the economic growth is derivate from the long-run equilibrium in the short run, it will return to the long-run equilibrium by 2.2 per cent. Keywords: Economic Growth, Export from China to South Korea, Vector Error Correction ModelJEL Classification: C02; F10; F1