公开(公告)号：US5523398A

公开(公告)日：1996-06-04

申请号：US296934

申请日：1994-08-31

Applicant: Wolfgang G. Glasser ,  Gamini Samaranayake ,  James E. Sealey, II

Inventor： Wolfgang G. Glasser ,  Gamini Samaranayake ,  James E. Sealey, II

IPC: C08B3/02 ,  C08B3/10 ,  C08B3/00 ,  C08B5/00 ,  C08B7/00

CPC classification number: C08B3/10 ,  C08B3/02

Abstract: The invention is directed to the formation of cellulose derivatives using homogenous phase reaction conditions. Cellulose is dissolved using DMAc/LiCl and a reagent system is added to promote the acylation of an appropriate acid anhydride or free carboxylic acid. One reagent system includes N,N-dicyclohexylcarbodiimide (DCC) and 4-pyrrolidinopyridine (PP). Another reagent system includes p-toluene sulfonyl chloride (TsCl) and pyridine (Py).

Abstract translation: 本发明涉及使用均相相反应条件形成纤维素衍生物。 使用DMAc / LiCl溶解纤维素，并加入试剂体系以促进合适的酸酐或游离羧酸的酰化。 一种试剂系统包括N，N-二环己基碳二亚胺（DCC）和4-吡咯烷基吡啶（PP）。 另一试剂系统包括对甲苯磺酰氯（TsCl）和吡啶（Py）。

公开(公告)号：US5459475A

公开(公告)日：1995-10-17

申请号：US172127

申请日：1993-12-22

Applicant: Bing Shen ,  Warren L. Stutzman

Inventor： Bing Shen ,  Warren L. Stutzman

IPC: H01Q3/20 ,  H01Q19/19

CPC classification number: H01Q3/20 ,  H01Q19/191

Abstract: A novel method for calculating the surface shapes for subreflectors in a suboptic assembly of a tri-reflector spherical antenna system is introduced, modeled from a generalization of Galindo-Israel's method of solving partial differential equations to correct for spherical aberration and provide uniform feed to aperture mapping. In a first embodiment, the suboptic assembly moves as a single unit to achieve scan while the main reflector remains stationary. A feed horn is tilted during scan to maintain the illuminated area on the main spherical reflector fixed throughout the scan thereby eliminating the need to oversize the main spherical reflector. In an alternate embodiment, both the main spherical reflector and the suboptic assembly are fixed. A flat mirror is used to create a virtual image of the suboptic assembly. Scan is achieved by rotating the mirror about the spherical center of the main reflector. The feed horn is tilted during scan to maintain the illuminated area on the main spherical reflector fixed throughout the scan.

Abstract translation: 引入了一种用于计算三反射器球面天线系统的次反射组件中的次反射器的表面形状的新颖方法，其由Galindo-Israel的解决偏微分方程的方法的一般化来校正球面像差，并提供均匀的进给孔 映射。 在第一实施例中，次主组件作为单个单元移动以实现扫描，而主反射器保持静止。 在扫描期间，馈电喇叭倾斜以保持主球面反射器上的照明区域在整个扫描中固定，从而不需要使主球面反射器过大。 在替代实施例中，主球形反射器和次级组件都是固定的。 平面镜用于创建次要装配体的虚拟镜像。 通过围绕主反射体的球面中心旋转镜子来实现扫描。 馈电喇叭在扫描期间倾斜，以保持主球面反射器上的照明区域在整个扫描中固定。

公开(公告)号：US5446280A

公开(公告)日：1995-08-29

申请号：US114511

申请日：1993-08-31

Applicant: Anbo Wang ,  Kent A. Murphy ,  Richard O. Claus

Inventor： Anbo Wang ,  Kent A. Murphy ,  Richard O. Claus

IPC: G01D5/26 ,  G01K11/32 ,  H01J5/16 ,  H01J40/14

CPC classification number: G01D5/268 ,  G01K11/32

Abstract: A fiber optic sensor is fully compensated for light source intensity variation, fiber losses and modal power distribution by providing input to one end of an optical fiber from a relatively broad band light source containing at least two spectrally separated wavelengths. At least one of these spectrally separated wavelengths is reflected back into the optical fiber by a filter located between a second end of the optical fiber and a reflective transducer. The filter is preferably of the interference edge filter type and has a nominal cut-off wavelength within the spectral band of the light source or between the two spectrally separated wavelengths. Therefore, the paths traversed by light of the spectrally separated wavelengths will differ only by twice traversing the reflective transducer. Temperature measurement or compensation can also be provided by sensing of reflected light intensity or power at approximately the nominal cut-off frequency of the filter. Reflective transducers of both the intensity-based and interferometric types are usable with the invention.

Abstract translation: 光纤传感器通过从包含至少两个频谱分离的波长的相对宽带光源提供输入到光纤的一端而完全补偿光源强度变化，光纤损耗和模态功率分布。 这些光谱分离的波长中的至少一个通过位于光纤的第二端和反射换能器之间的滤光器反射回光纤。 滤波器优选地具有干涉边缘滤波器类型，并且在光源的光谱带内或在两个光谱分离的波长之间具有标称截止波长。 因此，通过光谱分离的波长的光穿过的路径将仅通过两次穿过反射换能器而不同。 温度测量或补偿也可以通过在大约过滤器的标称截止频率处感测反射光强度或功率来提供。 基于强度和干涉式的反射换能器可用于本发明。

公开(公告)号：US5431958A

公开(公告)日：1995-07-11

申请号：US999738

申请日：1992-12-31

Applicant: Seshu B. Desu ,  Chien-Hsiung Peng

Inventor： Seshu B. Desu ,  Chien-Hsiung Peng

IPC: C23C16/40

CPC classification number: C23C16/409

Abstract: A method to produce high quality doped and undoped lead zirconate titanate (PZT) thin films by metalorganic chemical vapor deposition is disclosed. The PZT thin films with the perovskite structure were deposited on sapphire disks, Pt/Ti/SiO.sub.2 /Si wafers, and RuO.sub.x /SiO.sub.2 /Si wafers by both hot-wall and cold-wall CVD reactors at deposition temperature as low as 550.degree. C. and a reduced pressure 6 torr. The source materials include metalorganic precursors and oxidizing agent. The metalorganic precursors can be metal alkoxides, metal acetylacetonates, or metal .beta.-diketonates. Preferably, the precursors are lead tetramethylheptadione for Pb component, zirconium tetramethylheptadione for Zr component, and titanium ethoxide for Ti component and the oxidizing agent is oxygen. The stoichiometry of the films can be easily controlled by varying the individual precursor temperature and/or the flow rate of the carrier gas. The Pb(Zr.sub.0.82 Ti.sub.0.18)O.sub.3 film produced by the present invention shows a spontaneous polarization of 23.3 .mu.C/cm.sup.2, a remanent polarization of 12.3 .mu.C/cm.sup.2, and coercive field of 64.5 kV/cm.

Abstract translation: 公开了通过金属有机化学气相沉积生产高质量掺杂和未掺杂的锆钛酸铅（PZT）薄膜的方法。 具有钙钛矿结构的PZT薄膜通过热壁和冷壁CVD反应器在低至550℃的沉积温度下沉积在蓝宝石盘，Pt / Ti / SiO 2 / Si晶片和RuO x / SiO 2 / Si晶片上 并减压6乇。 源材料包括金属有机前体和氧化剂。 金属有机前体可以是金属醇盐，金属乙酰丙酮化物或金属β-二酮化物。 优选地，前体是Pb组分的铅四甲基庚二酮，Zr组分的四甲基庚二酸锆和Ti组分的乙醇钛，氧化剂是氧。 可以通过改变载体气体的各个前体温度和/或流速来容易地控制膜的化学计量。 本发明生产的Pb（Zr0.82Ti0.18）O3膜的自发极化为23.3μC/ cm2，剩余极化为12.3μC/ cm 2，矫顽磁场为64.5kV / cm。

公开(公告)号：US5314644A

公开(公告)日：1994-05-24

申请号：US962903

申请日：1992-10-19

Applicant: Donald L. Michelsen ,  Felix Sebba

Inventor： Donald L. Michelsen ,  Felix Sebba

IPC: B01F7/00 ,  B01F7/28 ,  B01F15/00 ,  B01F3/04

CPC classification number: B01F7/005 ,  B01F7/28 ,  B01F15/00883 ,  Y10S261/75

Abstract: Means are provided for supplying a liquid surfactant solution, for supplying a gas under pressure, for mixing the liquid surfactant solution and the pressurized gas to form a liquid coarse dispersion of relatively large gas bubbles, and for receiving the liquid coarse dispersion to generate a liquid fine dispersion of relatively small micron-size gas bubbles. The fine dispersion generator mean generally comprises a cylindrical chamber having an inlet for admitting the liquid coarse dispersion into the chamber, and an outlet for discharging a liquid fine dispersion of relatively small micron-size gas bubbles from the chamber; a cylindrical rotor which is mounted within the chamber and has an outer side surface which is provided with means for imparting axial motion components in opposite directions to various portions of the liquid dispersion adjacent to rotor; and a plurality of baffles located between the rotor outer side surface and the chamber inner side wall surface which are spaced apart around the rotor and where each baffle has an inner longitudinal edge which faces the rotor outer side surface and is separated therefrom by a first gap within which the large gas bubbles are sheared into small micron-size gas bubbles.

Abstract translation: 提供用于供应液体表面活性剂溶液的装置，用于在压力下供应气体，用于混合液体表面活性剂溶液和加压气体，以形成较大气泡的液体粗分散液，并用于接收液体粗分散体以产生液体 相对较小的微米级气泡的细分散。 该细分散发生装置通常包括具有用于允许液体粗分散体进入室的入口的圆柱形室和用于从室中排出相对小的微米级气泡的液体细分散体的出口; 圆柱形转子，其安装在所述腔室内并且具有外侧表面，所述外侧表面设置有用于相对于与所述转子相邻的所述液体分散体的各个部分沿相反方向施加轴向运动部件的装置; 以及位于转子外侧表面和腔室内侧壁表面之间的多个挡板，其围绕转子间隔开，并且每个挡板具有面向转子外侧表面的内纵向边缘，并且与其分离第一间隙 其中大的气泡被剪切成小微米级的气泡。

公开(公告)号：US5224182A

公开(公告)日：1993-06-29

申请号：US751738

申请日：1991-08-29

Applicant: Kent A. Murphy ,  Ashish M. Vengsarkar ,  Michael F. Gunther ,  Brian R. Fogg ,  Richard O. Claus

Inventor： Kent A. Murphy ,  Ashish M. Vengsarkar ,  Michael F. Gunther ,  Brian R. Fogg ,  Richard O. Claus

IPC: G01B11/16 ,  G01D5/353 ,  G01H9/00 ,  G02B6/34

CPC classification number: G01H9/004 ,  G01B11/18 ,  G01D5/35309 ,  G01D5/3538

Abstract: Tapered two-mode optic fibers are used as sensors with sensitivity varying as a function of length. The optical fiber sensors act as vibrational-mode filters thereby performing initial signal processing of the sensor signal. The sensors are based on the differential propagation constant in a two-mode fiber that is directly dependent on the normalized frequency or V-number. Tapering the fiber changes the V-number and hence can change the sensitivity of the sensor along its length. By choosing an appropriate weighting function in the manufacture of the sensor, it is possible to implement vibrational-mode analysis, vibrational-mode filtering and other functions that are critical in control system applications.

Abstract translation: 锥形双模光纤被用作灵敏度随长度变化的传感器。 光纤传感器用作振动模式滤波器，由此执行传感器信号的初始信号处理。 传感器基于直接取决于归一化频率或V数的双模光纤中的差分传播常数。 纤维的锥度改变了V号，因此可以改变传感器沿其长度的灵敏度。 通过在传感器的制造中选择适当的加权函数，可以实现在控制系统应用中至关重要的振动模式分析，振动模式滤波和其他功能。

公开(公告)号：US5102992A

公开(公告)日：1992-04-07

申请号：US569550

申请日：1990-08-20

Applicant: Wolfgang G. Glasser ,  Willer De Oliveira ,  Stephen S. Kelley ,  Li S. Nieh

Inventor： Wolfgang G. Glasser ,  Willer De Oliveira ,  Stephen S. Kelley ,  Li S. Nieh

IPC: C08G59/04

CPC classification number: C08H6/00 ,  C08G59/04

Abstract: A method of producing prepolymeric materials from lignin is disclosed. The method uses lignin which has been hydroxyalkyl modified, such that the lignin is substantially non-phenolic and solvent soluble and/or liquid. The modified lignin is reacted with materials which yield prepolymers which may be polymerized according to known methods to produce useful polymers.

Abstract translation: 公开了一种从木质素生产预聚物的方法。 该方法使用已被羟烷基改性的木质素，使得木质素基本上是非酚类和溶剂可溶的和/或液体的。 将改性木质素与产生可根据已知方法聚合以产生有用聚合物的预聚物的材料反应。

公开(公告)号：US20230323375A1

公开(公告)日：2023-10-12

申请号：US18298082

申请日：2023-04-10

Applicant: VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

Inventor： Bo Zhang ,  Bingyu Zhao ,  Zhibo Wang

IPC: C12N15/82 ,  C12N9/22 ,  A01H6/54

CPC classification number: C12N15/8216 ,  C12N2310/20 ,  A01H6/542 ,  C12N9/22

Abstract: Described in several example embodiments herein are soybean plants and soybeans having one or more KTI genes having reduced or eliminated expression and/or activity thereby resulting soybean plants and soybeans having reduced or eliminated trypsin inhibition. In some embodiments, the soybean plants and soybeans are engineered to have one or more modified KTI genes. Also described herein are methods of making, growing, and using the soybean plants and soybeans described herein.

公开(公告)号：US20160260016A1

公开(公告)日：2016-09-08

申请号：US15156934

申请日：2016-05-17

Applicant: Virginia Polytechnic Institute and State University

Inventor： Christopher L. Barrett ,  Madhav V. Marathe ,  Keith R. Bisset

IPC: G06N5/02

CPC classification number: G06N5/022 ,  G06F17/00 ,  G06N5/02 ,  G06Q10/00 ,  G06Q30/00

Abstract: Systems, methods, and computer-readable media for generating a data set are provided. One method includes generating a data set based on input data using a plurality of brokers. The method further includes receiving a request from a user and determining whether the request can be fulfilled using data currently in the data set. When the request can be fulfilled using data currently in the data set, the data is accessed using broker(s) configured to provide access to data within the data set. When the request cannot be fulfilled using data currently in the data set, at least one new broker is spawned using existing broker(s) and additional data needed to fulfill the request is added to the data set using the new broker. The method further includes generating a response to the request using one or more of the plurality of brokers.

Abstract translation: 提供了用于生成数据集的系统，方法和计算机可读介质。 一种方法包括使用多个经纪人基于输入数据生成数据集。 该方法还包括从用户接收请求，并使用数据集中的当前数据来确定请求是否可以被满足。 当使用当前在数据集中的数据可以满足请求时，使用被配置为提供对数据集内的数据的访问的代理访问数据。 当使用当前数据集中的数据不能满足请求时，使用现有代理产生至少一个新代理，并且使用新代理将满足请求所需的附加数据添加到数据集中。 所述方法还包括使用所述多个经纪人中的一个或多个来产生对所述请求的响应。

公开(公告)号：US20130191312A1

公开(公告)日：2013-07-25

申请号：US13796284

申请日：2013-03-12

Applicant: Virginia Polytechnic Institute and State University

Inventor： Christopher L. Barrett ,  Madhav V. Marathe ,  Keith R. Bisset ,  Richard J. Beckman ,  Paula E. Stretz ,  Henning S. Mortveit ,  Stephen G. Eubank ,  Achla Marathe ,  Anil Kumar S. Vullikanti

IPC: G06F17/00

CPC classification number: G06N5/022 ,  G06F17/00 ,  G06N5/02 ,  G06Q10/00 ,  G06Q30/00

Abstract: Systems, methods, and computer-readable media for generating a data set are provided. One method includes generating a data set based on input data using a plurality of brokers. The method further includes receiving a request from a user and determining whether the request can be fulfilled using data currently in the data set. When the request can be fulfilled using data currently in the data set, the data is accessed using broker(s) configured to provide access to data within the data set. When the request cannot be fulfilled using data currently in the data set, at least one new broker is spawned using existing broker(s) and additional data needed to fulfill the request is added to the data set using the new broker. The method further includes generating a response to the request using one or more of the plurality of brokers.