Modern silicon technology offers unprecedented spatial and temporal control of electrons with high levels of integrated complexity. Integrating nanophotonic functionality onto silicon should then allow us to extend this level of control to photons. Resulting nanooptoelectronic systems will inevitably create new functionality, which not only enables next-generation technologies like optical interconnects, but also gives rise to yet unforeseen applications.

关键词：硅；纳米光电子；集成

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The Berkeley Sensor & Actuator Center at the University of California Berkeley has, for more than twenty‐five years, had a major impact on the research foundations and consequent commercialization of MEMS and NEMS. This has been achieved through creative combinations of resources, incentives, and shared goals involving Academia, Industry, and Government. The strongly multidisciplinary and interdisciplinary operational model of BSAC (a National Science Foundation Industry/University Cooperative Research Center) is described.

关键词：伯克利；传感器；执行器中心

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3D printers enable designers to rapidly produce working models of future products. Today these physical prototypes are mostly passive. Our research goal is to enable designers to turn models produced on commodity 3D printers into interactive objects with a minimum of required assembly or instrumentation. We present Sauron, an embedded machine visionbased system for sensing human input on physical controls like buttons, sliders, and joysticks. With Sauron, designers attach a single camera with integrated ring light to a printed prototype. This camera observes the interior portions of input components to determine their actuation and position. In many prototypes, input components may be occluded or outside the viewing frustum of a single camera. We introduce algorithms that generate internal geometry and calculate mirror placements to redirect input motion into the visible camera area.

关键词：嵌入式摄像机；传感；3D打印机

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Vertical-cavity surface-emitting lasers (VCSELs) are key optical sources in optical communications, the dominant source deployed in local area networks using multimode optical fibers at 850 nm. The advantages of VCSELs include wafer-scale testing, low-cost packaging, and ease of fabrication into arrays. The ease of array fabrication is particularly useful for spacedivision-multiplexed (SDM) links using multi-core fiber or fiber arrays. VCSELs emitting in the 1.3 μm to 1.6 μm wavelength regime, also known as long-wavelength VCSELs, are highly desirable for the rising applications of data and computer communications, in addition to optical access networks, optical interconnects and optical communication among wireless base stations.The potential advantages over conventional distributed feedback (DFB) and distributed Bragg reflector (DBR) lasers include much lower cost due to smaller footprint and wafer scale testing,and significantly lower power consumption.

关键词：发射激光器（VCSEL）；光通信；波长

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Frequency references with a low phase noise and a low temperature-induced frequency drift are important components for navigation systems, wireless communication systems,and signal processing applications. As is well known, crystal oscillators (XOs) and temperature compensated crystal oscillators (TCXOs) based on AT-cut quartz dominate this market because AT-cut quartz has outstanding frequency-temperature performance and long-term stability. However, there are drawbacks and fabrication limitations for quartz-based resonators related to down-scaling for future applications. In addition, the material properties of quartz limit the integration of the frequency references and the complementary metal-oxide semiconductor (CMOS) circuits on a single chip.

关键词：最低阶对称模式；温度补偿；半导体；芯片

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Traditional assembly line manufacturing is speculative, costly and environmentally unsustainable. It is speculative because it commits substantial resources—energy, materials, shipping, handling, stocking and displaying—without a guaranteed sale. It is costly because each of these resources—material, process, people and place—involves expense not encountered when a product is manufactured at the time of sale. It is environmentally unsustainable because, no matter how much recycling is done, not using the resources unless actually needed is always a better path. As part of the RAGNAROK (Research on Advancing Glass & Nonorganic Applications to Recreate Objects & Kinetics) project in HP Labs, we identified glass as a promising candidate for additive manufacturing based on 3-D printing methods. Glass is a silica-based material. With 90% of the earth’s crust composed of silicate minerals, there will be no shortage of silica resources. Glass is easy to recycle and is environmentally friendly. Glass is inexpensive but looks precious, is pleasant to the touch and is so familiar that customers will not be disappointed by its fragility— under certain conditions. A major need, and concomitantly a major challenge, for 3D printed glass is transparency. We will discuss several methods how to achieve it.

关键词：3D打印；透明玻璃

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Pharmaceutical is related to people's health and life safety directly, we can track and control pharmaceutical safety and quality by constructing the traceable system of pharmaceutical's whole life cycle, including raw materials, production, transportation and storage. This paper develops a pharmaceutical production management system based on RFID technology, the system realizes the drug security by RFID, puts forward a pharmaceutical coding method according to EPCgloble, constructs a scheduling method and a monitoring of the pharmaceutical production process, and then it will be traceable for the information of pharmaceutical production process.

关键词：医药；药品；RFID；管理系统

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运营商整体净利率有所下滑。2013年前三季度，三大运营商营业收入合计9,278亿元，同比增长14.7%，归属母公司股东净利润1,090亿元，同比增长1.2%。三家运营商竞争力度上升对行业盈利产生负面影响，其中中国移动前三季度净利润同比下降1.9%，净利率同比下降3.0个百分点至19.8%。3G业务仍是运营商收入增长的主要驱动因素，截止三季度末国内3G渗透率为31.23%，同比上升12.52个百分点。投资建议。1、LTE资本开支周期开启将会驱动无线投资上升；2、数据流量增长驱动传输领域需求上升；3、专网通信行业国内企业份额预期保持持续增长。建议关注：大富科技（300134）、亨通光电（600487）、烽火通信（600498）、中兴通讯（000063）、东方通信（600776）。

关键词：通信；电信；固定资产；3G用户；LTE；投资

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Pressure vessels owned and operated by NASA are required to be regularly certified per agency policy. Certification requires an assessment of damage mechanisms and an estimation of vessel remaining life. Since detail service histories are not typically available for most pressure vessels, a conservative estimate of vessel pressure/temperature excursions is typically used in assessing fatigue life. This paper details trial use of a data-logging transducer to passively obtain actual pressure and temperature service histories of pressure vessels. The approach was found to have some potential for cost savings and other benefits in certain cases.

关键词：传感器；数据记录传感器

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A forward collision warning system is a kind of advanced driver assistance system that is integrated in a vehicle to assist its driver. It provides improved vehicle safety with a safe human-machine interface and is designed to avoid accidents by focusing on the major causes of collisions. This system is highly efficient in warning a driver whenever required, and providing improved comfort and driver feedback. It also actively stabilizes vehicle and hence reduces the workload.

关键词：前方碰撞预警系统；前部碰撞；警示系统；驾驶辅助系统；车辆协助；驱动程序；人机界面

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