硅基光波导结构与器件

简要评述包括低损耗的电光波导器件、红外波导探测器、二氧化硅光波回路等硅基光波导的结构、工艺及其器件。     

WSi栅耗尽型高电子迁移率晶体管制作

用国产ＭＢＥ调，制掺杂材料研制了具有难熔金属硅化物栅的耗尽型高电子迁移率晶体器件。这种低噪声器件的栅长和栅宽分别为１．２－１．５μｍ和２×１６０μｍ。     

3D Interaction with the Desktop Bat

Many applications now demand interaction with visualizations of 3D scenes and data sets. Current flat 2D displays are limited in their capacity to provide this not only by the display technology but the interaction metaphors and devices used. The Desktop Bat is a device that has 5 degrees of freedom whilst retaining the simplicity of use o fa mouse. To use it for general 3D interaction several metaphors were created for the tasks of navigation and cursor manipulation and a set of experiments were conducted to determine which metaphors were the most efficient in use. Of these metaphors, a velocity control metaphor was the best for navigation and a metaphor that applied rotations and translations relative to the eyepoint coordinate system was best for object control.     

Presure Sensor of Fiber Optics Coupling Type

ＰｒｅｓｕｒｅＳｅｎｓｏｒｏｆＦｉｂｅｒＯｐｔｉｃｓＣｏｕｐｌｉｎｇＴｙｐｅ①ＷＡＮＧＺｈｅｎｃｈｅｎ（ＹａｎｓｈａｎＵｕｉｖｅｒｓｉｔｙ，Ｑｉｎｈｕａｎｇｄａｏ０６６００４，ＣＨＮ）Ａｂｓｔｒａｃｔ：Ｔｈｅｐｒｉｎｃｉｐｌｅｏｆｆｉｂｅｒｏｐｔｉｃ...     

GaAs器件及MMIC的可靠性研究进展

介绍了国外ＧａＡｓ微波器件及ＭＭＩＣ的可靠性研究进展情况，给出ＧａＡｓＭＥＳＦＥＴ、ＨＥＭＴ和ＭＭＩＣ的主要失效模式和失效机理以及在典型沟道温度下的平均寿命代表值。     

DNA disPLAY: Programmable Bioactive Materials Using CNC Patterning

2D, 3D and 4D printing are fertile areas for design and material experimentation, and thus the architectural detail in the future. Here Skylar Tibbits , along with his collaborators - Lina Kara'in (MIT Self-Assembly Lab) , Jose Gomez-Marquez, Anna Young and Joaquin Navarro (Little Devices Lab, MIT), Lee Gehrke, Helena de Puig and Justina Tam (Gehrke Lab, MIT), and Joseph Schaeffer and Carlos Olguin (Autodesk Inc) - describe the development of DNAdisPLAY: a project that created a physical prototype and design workflow for 2D bioprinting, resulting in the development of software, hardware and printed DNA patterns on paper.     

智能变电站远程综合监控管理系统

利用当前的物联网技术成果,根据电力、水利等具有大量值守机房/变电站的用户的远程综合监控管理需求,通过加强计算机技术、图像数字化技术和信息技术的应用,实现用户对前端无人或少人值守系统的综合监控、集中管理,利用现有的网络对前端的图像、环境、设备运行状态、门禁、周界防范等进行有效的监控和管理,大幅度提高了对前端监控的实时性、有效性,降低了人员及管理成本。     

A Single Layer Glucose Fuel Cell Intended as Power Supplying Coating for Medical Implants

We present a novel type of abiotically catalysed implantable glucose fuel cell with anode and cathode placed side by side, using a Raney‐platinum glucose oxidation anode with high tolerance towards oxygen. In contrast to conventional assembly designs used for implantable glucose fuel cells, no permeable cathode mounted in front of the anode to effect oxygen depletion is required. At 2.2 ± 0.1 μW cm^–2 the single layer fuel cell exhibits only half the maximum power density of the conventional fuel cell, which solely stems from the doubled total fuel cell area demand. Nevertheless, the novel single layer design is advantageous in terms of simplified fabrication and reduced overall thickness, facilitating implementation of the fuel cell as a power supplying coating directly on the surface of medical implants. Furthermore, the single layer design offers an attractive possibility to diminish the reduction of power density by limited oxygen mass transfer to the cathode by increasing the cathode to anode area proportion. With doubled cathode area proportion a by 36% higher power density can be reached. To calculate the optimum cathode to anode area proportions, we introduced an analytical model based on the experimentally determined polarisation resistances of the individual electrodes.     

Augmented Landscapes and Delicate Machinery

Mark Smout and Laura Allen of Smout Allen describe how for them drawing is instrumental, enabling them to pursue preliminary investigations that establish ‘a speculative method with which to examine the dynamic force of environmental and architectural processes’. This is illustrated by their Wet Lands: Architectural Waterscapes and Soft Infrastructures research project for London's Thames Estuary.