摘要：Highly deformable bodies are essential for numerous types of applications in all sorts of environments. Joint-like structures comprising a ball and socket joint have many degrees of freedom that allow mobility of many biomimetic structures. Recently, soft robots are favored over rigid structures for their highly compliant material, high-deformation properties at low forces, and ability to operate in di fficult environments. However, it is still challenging to fabricate complex designs that satisfy application constraints due to the combined e ffects of material properties, actuation method, and structural geometry on the performance of the soft robot. Therefore, a combination of a rigid joint and a soft body can help achieve modular robots with fully functional body morphology. Yet, the fabrication of soft parts requires extensive molding for complex shapes, which comprises several processes and can be time-consuming. In addition, molded connections between extremely soft materials and hard materials can be critical failing points. In this paper, we present a functionally graded 3D-printed joint-like structure actuated by novel contractile actuators. Functionally graded materials (FGMs) via 3D printing allow for extensive material property enhancement and control which warrant tunable functionalities of the system. The 3D-printed structure is made of 3 rigid ball and socket joints connected in series and actuated by integrating twisted and coiled polymer fishing line ( TCPFL) actuators, which are con fined in the FGM accordion-shaped channels. The implementation of the untethered T CPFL actuation system can be highly bene ficial for deployment in environments that require low vibrations and silent actuation. The fishing line TCP actuators produce an actuation strain up to 40% and bend the joint up to 40° in any direction. The T CPFL can be actuated individually or as a group to control the bending trajectory of the modular joint, which is bene ficial when deployed i

摘要：想必大家在生活中早已经看到过许许多多的动漫形象,或是使用动漫形象作为标识的品牌和产品,比如国产的喜羊羊、熊出没,日本的哆啦A梦,韩国的line Friends等等。＂动漫＂和＂品牌传播＂已成为我国当前大力发展的文化创意产业的热点问题和重要组成部分。

摘要：Based on the developing tendency of present China’s basic GIS,this paper discusses the designing idea for scales of 1∶10 000,1∶50 000, 1∶250 000 and 1∶1 000 000 pyramid_like multi_layer and multi_resolution of the basic GIS.A technical line for the construction of basic GIS of the whole country and various provinces for sustainable development is put *** some important theoretical GIS issues touched by the technical process are discussed.

摘要：The motions of points, lines, and planes, embedded in a rigid body are expressed in a unified algebraic framework using a Clifford algebra. A Clifford algebra based displacement operator is addressed and its higher derivatives from which the coordinate-independent characteristic numbers with simple geometric meaning are defined. Because of the coordinate independent feature, no tedious coordinate transformation typically found in the conventional instantaneous invariants methods is needed.

摘要：根据光电探测器的“猫眼效应”,针对成像光学系统的视轴,从理论上分析了利用激光对超视距系统进行视轴对准的可行性,特别分析了激光器输出功率参数、接收探测器焦平面是否离焦等关键参数。研究结果表明,基于“猫眼效应”的超视距系统进行视轴对准在理论上和实验设计上是可行的。

摘要：line PARK线形公园是集家居生活和艺术时尚为一体的综合性平台。欧洲顶级设计师的经典家具和先锋的艺术作品汇聚于此。家具饰品不只为使用和装饰而存在，我们崇尚的是从物质拥有到精神富有的转变，并试图在建筑、空间、家具、艺术和人之间达成调和。在这里，经典的设计和考究的品质将重新定义都市人对家居生活的态度。

摘要：This paper introduces the main PCB rules based on Pentium M for mobile computer architecture in military area, settles rules of layout, inducts simulate discussion to crosstalk of paralleling transmission lines, adverts the matching rules of time length, and offers an execution way to reduce motherboard area and improve making process.

摘要：This paper deals with the design of bidirectional coupler for broadband power line communication and the impedance matching technique with the power line. This coupler can be used for both transmitting and receiving the data, acting as transceiver. The impedance mismatching problem is also solved here using line trap circuit. The coupler circuit is capable of transmitting or receiving modulated signals with carrier frequency of 15 MHz which can be used for domestic as well as distribution power networks. Laboratory prototype tested using power line network consists of electrical household appliances and results show that the circuit is able to facilitate bidirectional band pass transmission.

摘要：The design of the power line carrier communication system was introduced in this paper,DSP was adopted as the hardware platform to complete the core *** sending terminal delivered the collecting data to the DSP receiving terminal through the power line carrier, and the DSP receiving terminal send the data to PC through a serial *** design improved the power line carrier communication system and the data transmission became faster and more *** experiment results showed that the PER of the receiving data is less than 0.4%, which satisfied the power line carrier communication requirement Our design is feasible and effective.

摘要：设计了一种低功耗指令Cache:通过在CPU与一级指令Cache之间加入line Buffer,来减少CPU对指令Cache的访问次数,从而降低指令Cache的功耗。此外在line Buffer控制器中添加了重装控制单元,当指令Cache发生缺失时,能将片外存储单元中的指令直接送给CPU,从而最大限度地减少由于Cache缺失所引起CPU取指的延迟。经验证,该设计在降低功耗的同时,还提升了指令Cache的性能。