摘要：The optimization design of the parameters, such as the groove depth, groove number, ratio of the groove width to the land width, and spiral angle of a new kind of double spiral grooves face seal, which works under the condition of high velocity, high sealing pressure and ultra-low temperature, is presented under the assump-tion of fixed closure force by finite element analysis method. The results show that the stiffness of the maximum film can be obtained when the ratio of the groove width to the land width is 0.5 and the spiral angle is about 75 degrees, when the influence of the groove number on the sealing performance is not obvious.

摘要：Most of advertisement systems are presently still launch the publicity content by the static words and pictures. Recently, this static advertisement model will not be able to attract people’s attention more and more. Moreover, the static information content of advertisement system is limited because of the layout shown size. It can not also fully demonstrate the information content of advertisement system. In this paper, we develop a digital interactive kanban advertisement system using face recognition methodology to solve these problems. The system captures the person’s face through the camera. The digital advertisement content size is relevant by the person and camera observation locations. In this paper, we adopt the Adaboost algorithm to judge people face, and the system only need to grab the position of the face. The system doesn’t built expensive and complex equipment to reduce the system cost and enhance the system performance. This system can also achieve the same similar digital interactive advertising effectiveness.

摘要：In this paper, we present a theoretical codebook design method for VQ-based fast face recognition algorithm to im-prove recognition accuracy. Based on the systematic analysis and classification of code patterns, firstly we theoretically create a systematically organized codebook. Combined with another codebook created by Kohonen’s Self-Organizing Maps (SOM) method, an optimized codebook consisted of 2×2 codevectors for facial images is generated. Experimental results show face recognition using such a codebook is more efficient than the codebook consisted of 4×4 codevector used in conventional algorithm. The highest average recognition rate of 98.6% is obtained for 40 persons’ 400 images of publicly available face database of AT&T Laboratories Cambridge containing variations in lighting, posing, and expressions. A table look-up (TLU) method is also proposed for the speed up of the recognition processing. By applying this method in the quantization step, the total recognition processing time achieves only 28 msec, enabling real-time face recognition.

摘要：借助农田开放式空气CO2浓度增高(face)技术平台,研究大气CO2浓度比对照高200μmol/mol的face处理对氮素动态影响的模拟模型,利用面向对象的程序设计设计语言Visual Basic以及相应的数据库技术,对上述模型进行数字化处理和系统设计,并通过实时数据链接和可视化图形处理技术,最终实现了一套基于face的水稻氮素动态模拟系统。

摘要：LCO_2(liquid CO_2) can absorb heat and release latent heat via phase transition, which can provide considerable cooling energy and effectively solve the problem of thermal damage in deep coal mining processes. A LCO_2 cycle refrigeration system is designed to continuously cool down the working face in a mine, and CO_2 is cyclically utilized. Additionally, LCO_2 is used not only as a cold source but also to prevent spontaneous combustion of coal in the gob. COMSOL Multiphysics simulation software is used to characterize the thermal performance of the heat exchange system, where the heat transfers between the CO_2 and the airflow. For a LCO_2 consumption of 13.54 m^3/h, the temperature of the airflow in the tunnel decreases by 7.72°C, and the cooling volume of the system reaches 142.99 kW/h; the cooling volume provides a latent heat release of 46.68 k W/h. The main influencing factors of the refrigeration system, such as ventilation flux, LCO_2 flow, LCO_2 temperature and initial tunnel temperature, are also analyzed quantitatively through the software. The temperature of the steady airflow in the tunnel is proportional to the square of the local fan ventilation flux, and it decreases linearly with an increase in the LCO_2 flow but increases with both the temperature of the LCO_2 and the initial temperature in the tunnel. When the temperature difference between the LCO_2 and wind increases, the heat exchange between the CO_2 and wind intensifies, and the cooling volume increases.

摘要：为了提高艺术设计的人工智能性和面向对象性,提出基于图像处理技术的艺术设计系统设计方法。对艺术设计的图像采用色差补偿方法进行图像亮度均衡修复处理,结合像素点量化跟踪方法进行图像融合,采用小波降噪技术实现图像降噪处理,由此完成艺术设计中的图像处理。在Map Info软件开发平台中进行艺术设计系统设计,采用Creator开发艺术设计系统的主界面,在face Tools中选择艺术设计的图像处理类型函数,通过Map Texture Tools选择贴图方法,在程序加载模块实现图像处理算法加载,最后在嵌入式Linux的体系结构中完成艺术设计系统的软件集成开发设计。系统测试结果表明,该系统能有效实现艺术中的图像输出,提高艺术设计图像的输出质量,图像的输出信噪比较高,系统的人机交互性能较好。

摘要：facebook并不是一个单纯的社交网站,而是一个加速信息流动的工具,特别是用户与自己同胞、家庭成员、以及工作关系之间的信息流动;facebook并不只面向大学生;facebook是一个足以改变全世界的创意,拥有无限的潜力。

摘要：face to face编读见面会于一个盛夏的午后开始了……2008年7月19日《数字商业时代》举办的“face to face编读见面会”在海淀文化艺术大厦举行，30多位热心读者和记者、编辑汇聚一堂，大家各抒已见，畅所欲言。

摘要：1引言在美国,民主权利和公众利益被认为是最基本的社会和政治主张.城市规划的公众参与与这种自由和民主的社会政治一脉相承,被作为规划法定决策程序中不可缺少的重要环节.然而,是否能真正成功地开展公众参与却是另外一回事.John Forester于1989年发表的一书,针对公众参与过程中所暴露的民主的弱点、利益的竞争,以及地位、资源方面的不平等等问题,论述了处于政治和经济权力运作中的规划,应充分利用这一权力运作的过程,发挥授权于民的作用.

摘要：“face TO face”的新加坡办公室坐落于人口稠密的莱佛士城和莱佛士坊之间，由设计师Colin Seah设计。设计最初，设计师了解到客户对于鲜明特色和完整概念的认同，最终确认以现代风格呈现办公室的专业形象。另外，设计也需注重来访者和接待者、屋主和租户之间的关系和经历。