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52 条记录 (耗时 0.025 秒)

    Beacon-assisted spacecraft attitude control systems and methods
    1.
    发明授权
    Beacon-assisted spacecraft attitude control systems and methods 有权
    信标辅助航天器姿态控制系统和方法

    公开(公告)号：US06288671B1

    公开(公告)日：2001-09-11

    申请号：US09557378

    申请日：2000-04-25

    申请人： Yeong-Wei Andy Wu ,  Umesh S. Ketkar ,  Rongsheng Li ,  Richard Y. Chiang

    发明人： Yeong-Wei Andy Wu ,  Umesh S. Ketkar ,  Rongsheng Li ,  Richard Y. Chiang

    IPC分类号： H04B7185

    CPC分类号： G01S3/30 ,  G01S5/0247 ,  G01S19/38

    摘要： Control systems and methods are provided which enhance acquisition range, transient response and offset pointing accuracy in beacon-assisted orientation of a spacecraft to a desired spacecraft attitude Adsrd. The methods receive a beacon signal with antennas that are arranged in a fixed angular relationship to thereby form an attitude error signal Serr whose magnitude is a measure of the attitude difference between a current spacecraft attitude Acrnt and the desired spacecraft attitude Adsrd. A sum power P&Sgr; that is the sum of the signal powers from the antennas is sensed and a signal modifier Smod is generated that increases with decreases in the sum power P&Sgr;. The attitude error signal Serr is then modified with a term (1+Smod) to form an enhanced attitude error signal Serrenhd. In one embodiment, the signal modifier Smod is n|Pmax−P&Sgr;|m wherein n and m are positive numbers and Pmax is the sum power P&Sgr; when the attitude error is zero.

    摘要翻译： 提供了控制系统和方法，其增强了航天器信标辅助定向到期望的航天器姿态的采集范围，瞬态响应和偏移指向精度Adsrd。 该方法接收具有以固定角度关系布置的天线的信标信号，从而形成姿态误差信号Serr，其大小是当前航天器姿态Acrnt与期望的航天器姿态Adsrd之间的姿态差的度量。 检测作为来自天线的信号功率的总和的总功率PSIGMA，并且产生信号修正器Smod，其随和功率PSIGMA的减小而增加。 然后用项（1 + Smod）修改姿态误差信号Serr，以形成增强的姿态误差信号Serrenhd。 在一个实施例中，信号修正器Smod是n | Pmax-PSIGMA | m，其中n和m是正数，Pmax是姿态误差为零时的和功率PSIGMA。

    Synthesis of quinoline and substituted quinoline copolymers
    5.
    发明授权
    Synthesis of quinoline and substituted quinoline copolymers 失效
    喹啉和取代的喹啉共聚物的合成

    公开(公告)号：US5162495A

    公开(公告)日：1992-11-10

    申请号：US435146

    申请日：1989-11-13

    申请人： Long Y. Chiang ,  John W. Swirczewski

    发明人： Long Y. Chiang ,  John W. Swirczewski

    IPC分类号： B01J27/043 ,  B01J27/047 ,  C08G61/10 ,  C08G61/12

    CPC分类号： C08G61/122

    摘要： The present invention is predicated on the discovery that quinoline and substituted quinoline derivatives, having substituents in positions other than the 2 and 6 position, undergo polymerization in the presence of tetrahydroquinoline or substituted tetrahydroquinolines and a transition metal sulfide catalyst to produce polymers that have repeating quinoline and substituted moieties.Thus, in one embodiment of the present invention, there is provided a novel method of preparing polymers having the formula ##STR1## which comprises contacting a tetrahydroquinoline having the formula ##STR2## with a quinoline compound having the formula ##STR3## at elevated temperatures and in the presence of a transition metal sulfide catalyst wherein the metal is selected from Groups VIB, VIIB of the periodic table and mixtures thereof and wherein the Rs (i.e. R.sub.3, R.sub.4, etc.) and the R's (i.e. R'.sub.3, R'.sub.4, etc.) may be the same or different and are selected from hydrogen, halogen (especially fluoro-, chloro- and bromo-), --NO.sub.2, OH, --NH.sub.2, --SH, --CN and organic substituents. In the above polymer, x and y represent the relative proportion of bracketed structural quinoline or substituted moieties, and n is an integer equal to or greater than 2.

    摘要翻译： 本发明基于以下发现：在四氢喹啉或取代的四氢喹啉和过渡金属硫化物催化剂存在下，在除2和6位以外的位置具有取代基的喹啉和取代的喹啉衍生物进行聚合以产生具有重复喹啉的聚合物 和取代部分。 因此，在本发明的一个实施方案中，提供了一种制备具有式（7）的聚合物的新方法，其包括使具有式（VIII）的式（VIII）的四氢喹啉与具有式 在升高的温度下和在过渡金属硫化物催化剂存在下，其中金属选自周期表的VIB，VIIB族及其混合物，其中R 5（即R 3，R 4等） ）和R（即R'3，R'4等）可以相同或不同，并且选自氢，卤素（特别是氟 - ，氯 - 和溴 - ），-NO 2，OH，-NH 2， -SH，-CN和有机取代基。 在上述聚合物中，x和y表示支架结构喹啉或取代部分的相对比例，n为等于或大于2的整数。

    Highly conducting organic polymer thin film coatings
    6.
    发明授权
    Highly conducting organic polymer thin film coatings 失效
    高导电有机聚合物薄膜涂料

    公开(公告)号：US5151478A

    公开(公告)日：1992-09-29

    申请号：US745298

    申请日：1991-08-15

    申请人： Long Y. Chiang ,  Wen-Yih F. Lai

    发明人： Long Y. Chiang ,  Wen-Yih F. Lai

    IPC分类号： C08G61/10 ,  C08G61/12

    CPC分类号： C08G61/12 ,  C08G61/10

    摘要： According to the present invention, there is provided a novel class of conducting organic polymers that are formed by the vapor phase polymerization and condensation of polynuclear aromatic compounds, polynuclear heterocyclic compounds and oligomers of polynuclear heterocyclic compounds. Especially useful in forming the conducting organic polymers of the present invention are compounds selected from the group consisting of anthracene, pyrene, pentacene, perylene, triphenylene, quinoline, phenazine, biquinoline, quinoline oligomers, benzoquinoline, pyrido-bipyrazine, terpyridine, bipyrazine and alkyl derivatives thereof in which the alkyl subsituent has 1 to about 10 carbon atoms.

    摘要翻译： 根据本发明，提供了一种由多核芳族化合物，多核杂环化合物和多核杂环化合物的低聚物的气相聚合和缩合形成的新型导电有机聚合物。 在形成本发明的导电有机聚合物中特别有用的是选自蒽，芘，并五苯，苝，三亚苯，喹啉，吩嗪，双喹啉，喹啉低聚物，苯并喹啉，吡啶并吡嗪，三联吡啶，联吡啶和烷基 其中烷基取代基具有1至约10个碳原子的衍生物。

    Low sodium cake mix and process of preparing low sodium cake
    8.
    发明授权
    Low sodium cake mix and process of preparing low sodium cake 失效
    低钠饼混合制备低钠饼的工艺

    公开(公告)号：US4938980A

    公开(公告)日：1990-07-03

    申请号：US325031

    申请日：1989-03-16

    申请人： Henry Arciszewski ,  Linda A. Porzio ,  Bin Y. Chiang ,  Clyde E. Spotts, Jr.

    发明人： Henry Arciszewski ,  Linda A. Porzio ,  Bin Y. Chiang ,  Clyde E. Spotts, Jr.

    IPC分类号： A21D2/02

    CPC分类号： A21D2/02 ,  Y10S426/804

    摘要： A cake mix for making a low sodium cake, which has good volume, fine texture, good flavor, pleasant mouth feel and uniform color. A nonshortening portion and a shortening portion are combined with a baking powder portion that has balanced amounts of potassium carbonate and monocalcium phosphate to produce a final cake batter. The final cake batter is baked to produce a cake having a final pH of about 6.8 to 7.5 and having a sodium content of less than 35 mgs per serving.

    摘要翻译： 制作低钠蛋糕的蛋糕混合物，体积小，质地细腻，味道好，口感舒适，色泽均匀。 非发泡部分和缩短部分与平衡量的碳酸钾和一磷酸钙的焙烧粉末部分组合以产生最终的蛋糕糊。 将最终的蛋糕面糊烘焙以产生具有约6.8至7.5的最终pH并且每份的钠含量小于35mg的蛋糕。

    Method of fabricating a coil
    9.
    发明授权
    Method of fabricating a coil 失效
    制造线圈的方法

    公开(公告)号：US4879804A

    公开(公告)日：1989-11-14

    申请号：US252069

    申请日：1988-09-30

    申请人： C. Y. Chiang

    发明人： C. Y. Chiang

    IPC分类号： H01F27/02 ,  H01F41/02

    CPC分类号： H01F41/02 ,  H01F27/027 ,  H01F2017/048 ,  Y10T29/4902 ,  Y10T29/49071 ,  Y10T29/49121

    摘要： There is provided a method of fabricating a coil and in particular to one including the steps of forming a frame with two vertically disposed supporting legs, mounting an axial coil and notches on the supporting legs, cutting off the conducting wire from two ends of the ferrite core of the coil, joining the conducting wire to the two ends of the ferrite core, enclosing the combined coil and the supporting legs with resin, and bending the lower part of the supporting leg upwardly along the outer surface of the coil.

    摘要翻译： 提供了一种制造线圈的方法，特别地涉及一种包括以下步骤：形成具有两个垂直布置的支撑腿的框架，将轴向线圈和凹口安装在支撑腿上，从铁氧体的两端切断导线 将导线接合到铁氧体磁芯的两端，用树脂包围组合的线圈和支撑腿，并沿着线圈的外表面向上弯曲支撑腿的下部。