Polymer-Electrolyte-Fuel-Cells (PEFCs) are promising candidates for powering vehicles and portable devices using renewable-energy sources. The core of a PEFC is the solid electrolyte membrane that conducts protons from anode to cathode, where water is generated. The conductivity of the membrane, however, depends on the water content of the membrane, which is strongly related to the cell operating conditions. The membrane and other cell components are typically compressed to minimize various contact resistances. Moreover, the swelling of a somewhat constrained membrane in the cell due to the humidity changes generates additional compressive stresses in the membrane. These external stresses are balanced by the internal swelling pressure of the membrane and change the swelling equilibrium. It was shown using a fuel-cell setup that compression could reduce the water content of the membrane or alter the cell resistance. Nevertheless, the effect of compression on the membranes transport properties is yet to be understood, as well as its implications in the structure-functions relationships of the membrane. We previously studied, both experimentally and theoretically, how compression affects the water content of the membrane. However, more information is required the gain a fundamental understanding of the compression effects. In this talk, we present the results of our investigation on the in-situ conductivity of the membrane as a function of humidity and cell compression pressure. Moreover, to better understand the morphology of compressed membrane, small-angle X-ray-scattering (SAXS) experiments were performed. The conductivity data is then analyzed by investigating the size of the water domains of the compressed membrane determined from the SAXS measurements.

关键词：燃料电池；能源；固体电解质；聚合物

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Electrolytes, nano-structuring and graphene nanoplatelets for electrodes, and current collectors in batteries and supercapacitors were investigated. The following results were obtained: (1) Nano-structuring of graphene nanoplatelets with and without conduct.

关键词：储能；电容；电容器；陶瓷电解质膜；电路

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In 2005 Focus: HOPE began working on a Technical Area Task to investigate advanced manufacturing in the area of Direct Deposition of Metal (DDM) for the Tank and Automotive Command (TACOM). In 2006, the scope was expanded to include basic research areas of Direct Deposition of Metal applicable to repairing military equipment and Focus: HOPE demonstrated the feasibility of conducting repairs on military equipment using Direct Deposition of Metal (Work Directive WD-FH-0001). The study also demonstrated that there could be a potential cost saving by repairing parts using DDM over purchasing new replacement parts. The overall project was extended in 2010 to provide additional time to conduct additional certification testing of repaired components and demonstrate the effectiveness of the parts repaired using Direct Deposition of Metal. For the present project, extensive studies were conducted on the metallurgical properties and bonding between the newly deposited metal and the parent metal substrate. The findings, results and conclusions of this process certification testing are provided in this report.

关键词：金属;军用物资;钢;拉伸性能;先进制造技术

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The seeder of rice bud-seed for field seedling raising is a new seedling equipment for field seedling raising,which is a complicated vibration system with multi-freedom.And the effect of the vibration parameters and interactions on the vibration velocity at different locations of the moving rail of two electromagnetic vibration metering devices which are installed side by side is large,and the passing rate of seeding is affected.In this paper,the virtual prototype of seeder of rice bud-seed for field seedling raising is established by ANSYS and ADAMS.The virtual prototype is developed to carry out dynamics simulation by using four-factor quadratic regression orthogonal rotary combination design.Mathematical models of influencing factors of vibration and variation coefficient of vibration velocity,and the factors and average velocity of seeding are established.The factors are optimized.And optimal combination of vibration influencing factors and the variation coefficient of vibration velocity interval with 95％ reliability are achieved.The result shows that optimal combination of factors is achieved under the condition that the excitation force amplitude is 39.8N,vibration frequency is 32.7Hz,the velocity is 58.5mm/s,stiffness of vibration isolating rubber pad is 1167N/mm.The corresponding variation coefficient of the vibration velocity is 6.287％,and the average seeding velocity is 18mm/s.The variation coefficient of the vibration velocity interval with 95％ reliability is from 2.909％ to 9.665％.

关键词：水稻;播种机;虚拟样机;振动速度的变异系数;先进制造技术

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Recognizing that a vibrant advanced manufacturing sector is vital to the American economy and national security, President Obama has proposed a $1 billion investment in a National Network for Manufacturing Innovation program. The NNMI program has the goal of advancing American domestic manufacturing. This program will seek to accomplish this by creating a robust national innovation ecosystem anchored by up to fifteen Institutes for Manufacturing Innovation. The Administration is committed to working with Congress to authorize and fully fund the President's request for the NNMI program. This report and the proposed program design included herein aims to support Congressional authorization and provide a guide for future program implementation. The NNMI will fill a gap in the innovation infrastructure, allowing new manufacturing processes and technologies to progress more smoothly from basic research to implementation in manufacturing. The NNMI program has a scale and focus that is unique, and it is built upon concepts of a strong public-private partnership.

关键词：制造；技术创新；全国网络制造创新（NNMI）；先进制造技术

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Manufacturing strength is linked closely to the innovative potential and competitiveness of nations. In many sectors, innovative methods and ideas are generated and perfected through the process of making things. In recognition, a recent Report of the Presidents Council of Advisors on Science and Technology (PCAST) and the Presidents Innovation and Technology Advisory Committee (PITAC) emphasized the critical importance of advanced manufacturing in driving knowledge production and innovation in the United States.1 Manufacturing companies play a vital role in the economic growth, high skill employment, and competitiveness of the United States economy. They are responsible for over two-thirds of business and industrial R&D, employing the majority of domestic scientists and engineers. Furthermore, manufacturing R&D is the dominant source of innovative new service-sector technologies that reach beyond the manufacturing arena.2 The Manufacturing Extension Partnership (MEP)a program of the U.S. Department of Commerces National Institute of Standards and Technology (NIST)has sought for more than two decades to strengthen American manufacturing. It is a national network of affiliated manufacturing extension centers and field offices located throughout all fifty states and Puerto Rico. Qualified MEP Centers work directly with small and medium manufacturing firms in their state or sub-state region, providing expertise, services and assistance directed to foster growth, improve supply chain positioning, leverage emerging technologies, upgrade manufacturing processes, develop work force training, and apply and implement new information.

关键词：制造业；方案评价；政府/行业关系；先进制造技术

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This report summarizes the activities conducted at the Center for Micro Air Vehicle Studies (CMAVS) from 2010 to 2013. The Center was formed to serve the needs of the Air Force in fundamental research and development of micro airplanes for indoor and urban areas. CMAVS organizational focuses include: (1) rapid manufacturing for hands-on development of flight worthy Micro Air Vehicles (MAVs); (2) assisting research groups at AFRL in manufacturing different MAV parts; (3) testing new innovation and ideas for further MAV development, and (4) training students in advanced manufacturing techniques.

关键词：先进制造技术;空军;遥控飞行器;航空器;中心微型飞行器的研究

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Precision air conditioning systems are cooling solutions designed for efficient cooling of data centers. These solutions maintain the temperature and humidity levels in the data center. The rapid increase in the adoption of high-performance computing and data processing solutions in the data center has increased the demand for precision cooling solutions to be incorporated as part of data centers. Some enterprises are also adopting economizer technology in their data centers to increase cooling efficiency.

关键词：精密空调系统；制冷设计数据；高效；散热解决方案

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Maintenance of standard vision is important as an eye is a vital sensory organ.

关键词：标准视力；维护；眼科；诊断装置

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A drive is an adjustable speed device that regulates the speed and direction of motors. Adjustment is done by varying the current flow through the motor. Drives are classified into two broad categories based on the type of current: AC drives and DC drives. AC drives are used to control AC electric motors, while DC drives are used for DC electric motors. Drives are widely used in manufacturing industries to regulate and control electrical devices such as fans,conveyors, machine spindles, and pumps. AC drives are widely used in process industries to increase the energy efficiency of motors.

关键词：驱动；调节电机；速度；方向；调速装置；交流驱动器；直流驱动器

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