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    • 1. 发明申请
    • METHODS FOR THE SYNTHESIS OF FUNCTIONALIZABLE POLY(ETHYLENE OXIDE) STAR MACROMOLECULES
    • 功能性聚(乙氧基)星形分子的合成方法
    • WO1998018494A1
    • 1998-05-07
    • PCT/US1997019257
    • 1997-10-27
    • MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    • MASSACHUSETTS INSTITUTE OF TECHNOLOGYMERRILL, Edward, W.YEN, Diane, RintzlerSAGAR, Ambuj
    • A61K47/48
    • B82Y5/00A61K47/6949C08G65/329C08G81/025C08G83/003
    • Methods are provided for the synthesis of poly(ethylene oxide) ("PEO") star macromolecules including functionalizable groups. In one embodiment, a core molecule including a plurality of dendritic branches or having a comb structure, and including a plurality of accessible reactive groups is reacted with functionalizable poly(ethylene oxide) ("PEO") molecules. The functionalizable poly(ethylene oxide) molecules include a reactive group capable of reacting with the reactive group on the core molecule, and a functionalizable group capable of being chemically modified, which optionally is protected. In the reaction, the PEO molecules are covalently attached to the core molecule, to form a PEO star macromolecule with terminal functionalizable groups. Preferably, the functionalizable PEO is a heterofunctional linear PEO which includes the reactive group at one terminus and the functionalizable group at the other terminus. The functionalizable groups on the PEO molecules then may be deprotected if necessary, and the further derivatized, for example, by the attachment of a biologically active molecule or polymer thereof.
    • 提供了用于合成包含可官能化基团的聚(环氧乙烷)(“PEO”)星型大分子的方法。 在一个实施方案中,包含多个树枝状枝或具有梳结构并且包括多个可接触的反应性基团的核心分子与可官能化的聚(环氧乙烷)(“PEO”)分子反应。 可官能化的聚(环氧乙烷)分子包括能够与芯分子上的反应性基团反应的反应性基团和能够被化学改性的可官能化基团,其任选被保护。 在反应中,PEO分子共价连接到核心分子上,形成具有末端官能团的PEO星型大分子。 优选地,可官能化PEO是异功能线性PEO,其包括一个末端的反应性基团和另一个末端的可官能化基团。 如果需要,PEO分子上的可官能化基团可以被去保护,并且例如通过附着生物活性分子或其聚合物进一步衍生化。
    • 3. 发明申请
    • CHARGE MODULATION DEVICE
    • 充电调制装置
    • WO1998009334A1
    • 1998-03-05
    • PCT/US1997014638
    • 1997-08-20
    • MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    • MASSACHUSETTS INSTITUTE OF TECHNOLOGYREICH, Robert, K.SAVOYE, Eugene, D.KOSICKI, Bernard, B.
    • H01L27/148
    • H01L29/76833H01L27/1464H01L31/1126
    • A charge modulation device having a semiconductor region of a first conductivity type. An epitaxial layer of second conductivity type is provided on a portion of the semiconductor region so as to define an FET channel region. A first epitaxial region of the second conductivity type is provided adjacent to and in contact with the epitaxial layer so as to define an FET drain region, the first epitaxial region being electrically isolated from the semiconductor region. A second epitaxial region of the second conductivity type is provided adjacent to and in contact with the epitaxial layer so as to define an FET source region, the second epitaxial region being electrically isolated from the semiconductor region. A third epitaxial region of the first conductivity type or a metal oxide semiconductor is provided to the channel region between the source and drain regions.
    • 一种具有第一导电类型的半导体区域的电荷调制装置。 在半导体区域的一部分上设置第二导电类型的外延层,以限定FET沟道区。 第二导电类型的第一外延区域设置成与外延层相邻并与外延层接触,以便限定FET漏区,该第一外延区域与半导体区域电绝缘。 第二导电类型的第二外延区域被设置为与外延层相邻并与外延层接触,以限定FET源极区域,第二外延区域与半导体区域电隔离。 第一导电类型的第三外延区域或金属氧化物半导体被提供给源区和漏区之间的沟道区。
    • 6. 发明申请
    • INTERFEROMETRIC BROADBAND IMAGING
    • 干涉宽带成像
    • WO1997045773A1
    • 1997-12-04
    • PCT/US1997009005
    • 1997-05-28
    • MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    • MASSACHUSETTS INSTITUTE OF TECHNOLOGYEVERETT, Patrick, N.MOON, Euclid, EberleSMITH, Henry, I.
    • G03F09/00
    • G03F9/70G01B9/02043G01B9/02072G01B9/02078G01B9/0209G01B2290/30
    • Alignment marks on first and second plates include a plurality of periodic gratings. A grating on a first plate has a period or pitch p1 paired up with a grating on the second plate that has a slightly different period p2. A grating on the first plate having a period p3 is paired up with a grating on the second plate having a slightly different period p4. Illuminating the gratings produces a first interference pattern characterized by a first interference phase where beams diffracted from the first and second gratings overlap and a second interference pattern characterized by a second interference phase where beams diffracted from the third and fourth gratings overlap. The plates are moved until the difference between the first and second interference phases correspond to a predetermined interference phase difference. Further invention uses an interrupted-grating pattern on the second plate with certain advantages. Further advantages are obtained using a checkerboard pattern on the second plate. In addition two inventions are made for measuring gap. One method uses the same marks on the second plate as used in aligning, and the second uses no marks on the second plate, which is an advantage in some cases.
    • 第一和第二板上的对准标记包括多个周期性光栅。 第一板上的光栅具有与第二板上的光栅成对的周期或间距p1,其具有稍微不同的周期p2。 具有周期p3的第一板上的光栅与第二板上的光栅配对,具有稍微不同的周期p4。 照亮光栅产生第一干涉图案,其特征在于第一干涉相位,其中从第一和第二光栅衍射的光束重叠,以及第二干涉图案,其特征在于第二干涉相位,其中从第三和第四光栅衍射的光束重叠。 板移动直到第一和第二干涉相位之间的差对应于预定的干涉相位差。 另外,本发明使用了具有某些优点的第二板上的中断光栅图案。 使用第二板上的棋盘图案获得更多的优点。 另外还有两个发明用于测量差距。 一种方法在对准中使用与第二板相同的标记,而第二板在第二板上不使用标记,这在某些情况下是有利的。
    • 7. 发明申请
    • CODED APERTURE IMAGING
    • 编码孔径成像
    • WO1997045755A1
    • 1997-12-04
    • PCT/US1997009498
    • 1997-05-30
    • MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    • MASSACHUSETTS INSTITUTE OF TECHNOLOGYLANZA, Richard, C.
    • G01T01/29
    • G01V5/0069G01N23/204G01N23/22G01T1/295
    • This invention provides coded aperture (16) imaging apparatus and methods for the detection and imaging of radiation which results from nuclear interrogation of a target object (24). The apparatus includes: 1) a radiation detector (18) for detecting at least a portion of the radiation emitted by the object in response to nuclear excitation and for producing detection signals responsive to the radiation; 2) a coded aperture (16) disposed between the detector and the object such that emitted radiation is detected by the detector after passage through the coded aperture; and 3) a data processor (20) for characterizing the object based upon the detection signals from the detector and upon the configuration of the coded aperture. The method includes the steps of: 1) disposing a coded aperture in selected proximity to the object; 2) bombarding the object with an interrogation beam (14) from a source of excitation energy (12); 3) detecting, with a detector, at least a portion of the radiation emitted in response to the interrogation beam, the detector producing detection signals responsive to the radiation, the detector being disposed so that the coded aperture is between the detector and the object and such that emitted radiation is detected by the detector after passage through the coded aperture; and 4) processing the detection signals to characterize the object based upon radiation detected by the detector after passage through the coded aperture, and based upon the configuration of the coded aperture.
    • 本发明提供了编码孔径(16)成像设备和用于由目标对象(24)的核询问产生的辐射的检测和成像的方法。 该装置包括:1)辐射检测器(18),用于响应于核激励而检测物体发射的辐射的至少一部分,并产生响应于辐射的检测信号; 2)设置在检测器和物体之间的编码孔径(16),使得在通过编码孔径之后检测器发射的辐射被检测; 以及3)用于基于来自检测器的检测信号和编码孔径的配置来表征物体的数据处理器(20)。 该方法包括以下步骤:1)将选定的编码孔径布置在物体附近; 2)用来自激发能源(12)的询问光束(14)轰击物体; 3)利用检测器检测响应于询问光束发射的辐射的至少一部分,检测器产生响应于辐射的检测信号,检测器被布置成使得编码孔径在检测器和物体之间,并且 使得发射的辐射在通过编码孔径之后由检测器检测; 以及4)根据经过编码孔径的检测器检测到的辐射,并且基于编码孔径的配置,处理检测信号以表征物体。
    • 9. 发明申请
    • BASE FORCE/TORQUE SENSOR APPARATUS FOR THE PRECISE CONTROL OF MANIPULATORS WITH JOINT FRICTION AND A METHOD OF USE THEREOF
    • 用于具有联合摩擦的操纵器的精确控制的基座/扭矩传感器装置及其使用方法
    • WO1997040435A2
    • 1997-10-30
    • PCT/US1997006250
    • 1997-04-15
    • MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    • MASSACHUSETTS INSTITUTE OF TECHNOLOGYDUBOWSKY, StevenMOREL, Guillaume
    • G05D00/00
    • B25J9/1628G05B2219/40582G05B2219/40599
    • An elegant, cost-effective apparatus and method is disclosed for compensating the effect of joint friction in manipulators. The invention uses a six axis wrench sensor (also called a force/torque sensor) mounted between the manipulator and a reference body upon which it is supported. From the base wrench measurements, for rotary joints, the joint torques are estimated. The estimations apparatus uses Newton-Euler relations of successive link bodies. The estimated torque is fed back through a torque controller, that virtually eliminates friction and gravity effects. A position control loop encloses the torque controller and provides it with desired torques computed from measured position errors. For linear joints, appropriate forces are estimated. Coupled to link position sensors and the wrench sensor, is a gravity compensator, which generates a dynamic wrench signal that corresponds to the gravity compensated dynamic component of the base wrench signal, based on the position signals and the base wrench signal. Coupled to the gravity compensator and the position sensors is a joint analyzer, which generates a signal that corresponds to the gravity compensated torque that is actually applied to the link at the rotary joint, based on the dynamic wrench signal and the position signals. Both torques at rotary joints and forces at linear joints are estimated by the apparatus. Multiple and single joint manipulators can be evaluated. The achieved precision is substantially greater than for conventional methods and approaches the resolution of the Puma's encoders.
    • 公开了一种优雅,成本有效的装置和方法来补偿机械手中的联合摩擦的影响。 本发明使用六轴扳手传感器(也称为力/扭矩传感器),其安装在操纵器和支撑在其上的参考体之间。 从基础扳手测量,对于旋转接头,估计接头扭矩。 估计装置使用连续链接体的牛顿 - 欧拉关系。 估计的扭矩通过扭矩控制器反馈,实际上消除了摩擦和重力作用。 位置控制回路包围扭矩控制器,并向其提供从测量位置误差计算出的所需转矩。 对于线性关节,估计适当的力。 耦合到链接位置传感器和扳手传感器,是重力补偿器,其基于位置信号和基准扳手信号产生对应于基础扳手信号的重力补偿动态分量的动态扳手信号。 耦合到重力补偿器并且位置传感器是联合分析器,其基于动态扳手信号和位置信号产生对应于实际施加到旋转接头处的连杆的重力补偿转矩的信号。 旋转接头处的扭矩和直线接头处的力均由设备估计。 可以评估多个和单个关节操纵器。 实现的精度比传统方法大得多,并且可以实现Puma编码器的分辨率。