摘要：This paper presents a free viewpoint video （FVV） system based on ray-space interpolation method The new algorithm matches individual pixels in corresponding scanline pairs by using a ruing technique. A sparse intermediate view disparity map is projected from matched dynamic programpixels firstly, and the holes （occluded pixels） are filled in by propagating the disparity of neighboring background pixels. After interpolating dense view images, an arbitrary virtual view image can be easily rendered from the dense ray-space converted from these view images. The proposed method is evaluated on the Middlebury data set and compared with other methods, experimental results show that the better quality of the intermediate view is obtained and the corresponding computational complexity is reduced significantly.

摘要：This paper presents the first of a series of studies on the seismic design of high-rise towers for cablestayed bridges under strong *** practical cable-stayed bridge with a 730 m long main span and two high-rise towers over 200 m in height was selected for this *** preliminary results show that compared with piers,the tower is more vulnerable to pulse-like earthquakes,and it may develop plasticity at certain *** addition,viscous dampers may not have the same effect during pulse-like earthquakes as they do under site-specific ***,reoptimization of damper parameters or reconsideration of other energy dissipation devices will be needed if strong earthquakes are likely to occur.

摘要：Rational protein design is a powerful strategy,not only for revealing the structure and function relationship of natural metalloproteins,but also for creating artificial metalloproteins with improved properties and ***(Mb),a small heme protein created by nature with diverse functions,has been shown to be an ideal scaffold for rational protein *** progress reviewed herein includes fine-tuning its native functions of O2binding and transport,peroxidase activity and nitrite reductase(NIR)activity,and rational expanding its functionalities to peroxygenase,heme-copper oxidase(HCO),nitric oxide reductase(NOR),as well as hydroxylamine *** studies have enhanced our understanding of how metalloproteins work in nature,and provided insights for rational design of functional metalloproteins for practical applications in the future.

摘要：The cross-section profiles of polymer deformation in the hot embossing lithography process were studied by finite element method for various temperature, time and pressure. In order to successfully fabricate high-frequency grating lines, an optimal imprint condition was selected and the related experiments were carried out. The fabricated gratings were illuminated by the SEM image and AFM analysis, which agree well with the simulated results. Therefore, the finite element methods are helpful for a better comprehension of the polymer flow phenomena governing the pattern definition and the design of optimum processing conditions for successful grating fabrication.

摘要：提出了一种基于三导体耦合线结构的毫米波Marchand巴伦的新型宽带模型.基于c模和π模理论,对三导体耦合线进行了分析并采用传输线和理想变压器对其建立了模型.通过电磁场仿真提取了模型参数并使用该耦合线模型建立了Marchand巴伦的模型.基于该模型,使用GaAs工艺设计了一种毫米波Marchand巴伦并进行了流片制造,所设计的巴伦工作在15~55 GHz频率范围,测试结果表明该巴伦具有较好的幅值和相位平衡度,同时验证了模型的准确性.

摘要：There has not been an effective method to measure the resistivity of small-size sample of mineral and solid insulating material until *** to the chinese National Standard(GB/T1410-2006) and features of digital high resistance meter,a small electrode experimental installation was developed;it can work with current high resistance meter;the sample decreases to 18 mm from standard size 100 mm in diameter and reduces by 30.86 times in area.A three-electrode system is supported and precisely positioned by two insulating bases whose diameter is 60 mm and height is 20 mm,which ensures accuracy of device structure and reliability of measuring *** key technological parameters are as follows:diameter of high voltage electrode is 18mm;diameter of measuring electrode is 14.6 mm;internal diameter and external diameter of guard electrode are 16 and 18 mm,respectively;the gap between guard electrode and measuring electrode is set at 0.6 *** parameters are adequate for the measurement of flat specimen of mineral and solid insulating material whose diameter is 18 *** to the confirmatory experiment on the volume resistivity and surface resistivity,the measuring results are almost the same,using a small electrode experimental installation and a standard electrode.

摘要：A novel one dimensional periodic dielectric ring waveguide （PDRWG） is proposed and its dispersion properties are studied in details. Based on the proposed waveguide structure, a compact dual wavelength demultiplexer is designed. By a finite-difference time-domain （FDTD） simulation method, the performance of the designed device is calculated and analyzed. The dual wavelength demultiplexer can split the communication wavelengths of 1.31 and 1.55 μm into different waveguides and output from different ports with relative high transmittances of about 98% and 92%, respectively. The PDRWG may find applications in multi-wavelength demultiplexers or other novel integrated photonic devices.

摘要：An important step for achieving the knowledge-based design freedom on nano-and interfacial materials is attained by elucidating the related surface and interface thermodynamics from the first principles so as to allow engineering the microstructures for desired properties through smartly designing fabrication processing *** is demonstrated for SnO2 nano-particle surfaces and also a technologically important Ag-SnO2 interface fabricated by in-situ internal *** on defect thermodynamics,we first modeled and calculated the equilibrium surface and interface structures,and as well corresponding properties,as a function of the ambient temperature and oxygen partial pressure.A series of first principles energetics calculations were then performed to construct the equilibrium surface and interface phase diagrams,to describe the environment dependence of the microstructures and properties of the surfaces and interfaces during fabrication and service *** use and potential application of these phase diagrams as a process design tool were suggested and discussed.

摘要：变速风力发电机对于电网扰动、故障以及电网电压跌落非常敏感,当上述情况发生时风力发电机将从电网切除,直到电网恢复正常才能重新投入运行。如何在电网发生扰动时保持风力发电机的正常运行是一个有挑战性的课题。未来的电网规范甚至要求在电网发生故障时风力机组仍能保持运行,这就要求必须安装保证风电机组低电压运行的控制装置。文中针对采用全载换流器与电网进行连接的异步风力发电机组提出了相应的风电机组低电压控制器及控制策略,无须进行硬件改造即可实现电网故障情况下风电机组不退出运行。其中,风电机组电气子系统控制器基于无差拍控制策略进行设计。算例给出了300kW的风电机组在30%电压跌落情况下的暂态过程,没有加入控制器之前风电机组将停机,加入之后则可以保持运行,验证了所提方法的正确性。

摘要：The heating load simulation models of the residential buildings in Lhasa are established for enhancing the space organization’s adaptability to climate and radiation and improving its energy saving *** space organization items a e analyzed for both the existing buildings without insulation and new buildings with good *** items include orientation design,south a d north balcony design,the north and south partition wall’s position design,storey height design and window-wall ratio *** results show that orientation is the key design element for energy saving design,and adverse orientation can obviouslyincrease heating energy consumption;south and north balconies can reduce winter heating energy consumption;partition walls move to the north,which means that the south room’s big depth design leads to less heating energy consumption,but the effect is not inconspicuous;smaier storey height results in less heating *** the existing buildings,the window-wall ratio of south side has a balance point for energy saving design in the calculation *** the new buildings with good insulation,enlarging the south window-wal ratio can continuously reduce heating energy consumption,but the energy saving rate between models gets *** heating energy consumption comparison study between the common model and optimal space design model demonstrates that the energy saving design can significantly reduce heating energy consumption