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    • 1. 发明申请
    • POROUS AND NON-POROUS NANOSTRUCTURES
    • 多孔和非多孔纳米结构
    • WO2011156028A2
    • 2011-12-15
    • PCT/US2011027746
    • 2011-03-09
    • UNIV TEXASFERRARI MAUROLIU XUEWUCHIAPPINI CIROFAKHOURY JEAN RAYMOND
    • FERRARI MAUROLIU XUEWUCHIAPPINI CIROFAKHOURY JEAN RAYMOND
    • H01L29/06H01L21/306H01L23/48H01L23/532
    • H01L29/0665B82Y10/00B82Y30/00B82Y40/00H01L2924/0002H01L2924/00
    • Disclosed are a variety of porous and non-porous wire-like structures of microscopic and nanoscopic scale. For instance, disclosed are structures that comprise a porous object that comprises: (i) a first region; and (ii) a second region adjacent to the first region along an axis of the object, where the first region has at least one porous property different from that of the second region. Also disclosed are structures that include: (i) a high resistivity silicon; and (ii) a cross-section that is substantially perpendicular to an axis of the object. Also disclosed are methods of making and using such structures. For instance, the present invention provides methods of making a porous object by: (i) obtaining an etchable substrate; (ii) forming on a surface of the substrate a patterned porosification assisting metal layer that has at least one opening; and (iii) subsequently exposing the substrate to a first etching solution and a second etching solution to form respectively a first region and a second region of a porous object.
    • 公开了各种微观和纳米尺度的多孔和无孔线状结构。 例如,公开的是包括多孔物体的结构,其包括:(i)第一区域; 和(ii)沿所述物体的轴线邻近所述第一区域的第二区域,其中所述第一区域具有与所述第二区域不同的至少一个多孔性质。 还公开了包括:(i)高电阻率硅; 和(ii)基本上垂直于物体轴线的横截面。 还公开了制造和使用这种结构的方法。 例如,本发明提供了通过以下步骤制造多孔物体的方法:(i)获得可蚀刻的基底; (ii)在所述基材的表面上形成具有至少一个开口的图案化的赋形金属层; 和(iii)随后将所述衬底暴露于第一蚀刻溶液和第二蚀刻溶液以分别形成多孔物体的第一区域和第二区域。
    • 4. 发明申请
    • SPECTROPHOMETRIC MEASUREMENTS OF PH IN-SITU
    • PH in-SITU的分光光度法测量
    • WO2006110771A3
    • 2007-09-20
    • PCT/US2006013524
    • 2006-04-12
    • UNIV SOUTH FLORIDABYRNE ROBERT HKALTENBACHER ERICLIU XUEWU
    • BYRNE ROBERT HKALTENBACHER ERICLIU XUEWU
    • G01N31/22
    • G01N21/80G01N21/0303
    • Automated in-situ instrumentation has been developed for sensitive, precise and accurate measurements of a variety of analytes in natural waters In this work we describe the use of 'SEAS' (Spectrophotometry Elemental Analysis System) instrumentation for measurements of solution pH SEAS-pH incorporates a CCD-based spectrophotometer, an incandescent light source, and dual pumps for mixing natural water samples with a sulfonephthalein indicator The SEAS-pH optical cell consists of either a liquid core waveguide (LCW, Teflon AF 2400) or custom-made PEEK tubing Long optical pathlengths allow use of indicators at low concentrations, thereby precluding indicator- induced pH perturbations Laboratory experiments show that pH measurements obtained using LCW and PEEK optical cells are indistinguishable from measurements obtained using conventional spectrophotometric cells and high-performance spectrophotometers Deployments in the Equatorial Pacific and the Gulf of Mexico demonstrate that the SEAS-pH instrument is capable of obtaining vertical pH profiles with high spatial resolution SEAS-pH deployments at a fixed river-site (Hillsborough River, FL) demonstrate the capability of SEAS for observations of diel pH cycles with high temporal resolution The in-situ precision of SEAS-pH is better than 0 002 pH units, and the system's measurement frequency is approximately 0 5 Hz This work indicates that in-situ instrumentation can be used to provide unique capabilities for observations of carbon-system transformations in the natural environment.
    • 已经开发了自动化原位仪器,用于敏感,精确和准确地测量天然水中的各种分析物在本工作中,我们描述了使用“SEAS”(分光光度法元素分析系统)仪器测量溶液pH值SEAS-pH 一种基于CCD的分光光度计,白炽光源和用于将天然水样品与磺酞指示剂混合的双泵SEAS-pH光电池由液芯波导(LCW,Teflon AF 2400)或定制的PEEK管Long 光程长度允许以低浓度使用指示剂,从而排除指示剂诱导的pH扰动实验室实验表明,使用LCW和PEEK光学电池获得的pH测量与使用常规分光光度计和高性能分光光度计获得的测量无差异,赤道太平洋和 墨西哥湾证明了SEAS -pH仪器能够获得在固定河道(Hillsborough River,FL)上具有高空间分辨率SEAS-pH部署的垂直pH分布,证明SEAS能够观察到具有高时间分辨率的diel pH循环的能力原位精度 的SEAS-pH优于0 002 pH单位,系统的测量频率约为0 5 Hz。这项工作表明,现场仪器可用于提供自然环境中碳系转化观测的独特能力。