公开(公告)号：US20060099563A1

公开(公告)日：2006-05-11

申请号：US10982439

申请日：2004-11-05

Applicant: Zhenyu Lawrence Liu ,  Xin Chen ,  Lang Shie Chen

Inventor： Zhenyu Lawrence Liu ,  Xin Chen ,  Lang Shie Chen

IPC: G09B3/00

CPC classification number: G09B7/02

Abstract: A teaching system provides explanatory materials, examples, and problems on an interactive basis and adapts to the student. The system can generate random questions for presentation to the student as multi-step examples or practice problems. The student's answers during each step of a multi-step practice problem can be evaluated to identify weaknesses. Identified weaknesses can be remedied by presenting additional explanations, providing additional practice problems, and revisiting the weaknesses by inserting practice problems of the identified type into the student's subsequent lessons. The system can also adapt adjusting the speed or number of steps presented according to the student's performance. The system can further provide detailed analysis or diagnosis of the student's performance that can be communicated to teachers and/or parents for use in other teaching environments. The teaching system when embodied in a web site further provides communication among students, teachers, and parents.

Abstract translation: 教学系统在互动的基础上提供说明材料，示例和问题，并适应学生。 该系统可以产生随机问题，以呈现给学生作为多步骤示例或实践问题。 可以评估学生在多步练习问题的每个步骤中的答案，以识别弱点。 通过提供额外的解释，提供额外的实践问题，以及通过将识别的类型的实践问题插入到学生的后续课程中来重新审视弱点，可以弥补所识别的弱点。 该系统还可以根据学生的表现调整速度或步骤数量。 该系统可以进一步提供详细的分析或诊断学生的表现，可以传达给教师和/或家长在其他教学环境中使用。 教学系统体现在网站上，进一步提供学生，教师和家长之间的沟通。

公开(公告)号：US06970632B2

公开(公告)日：2005-11-29

申请号：US10837861

申请日：2004-05-03

Applicant: George E. Berkey ,  Xin Chen

Inventor： George E. Berkey ,  Xin Chen

IPC: G02B6/024 ,  G02B6/036 ,  G02B6/22

CPC classification number: G02B6/03627 ,  G02B6/024 ,  G02B6/0281 ,  G02B6/03694

Abstract: Disclosed is an optical fiber (20) having a centermost laterally-elongated core (30) having a short dimension (a), a long dimension (b) and a first refractive index (n1), a moat (40) surrounding the central laterally-elongated core, the moat (40) having a second refractive index (n2), an outer dimension (c) and an outer dimension (d), and a cladding (50) surrounding the moat (40), the cladding (50) having a third refractive index (n3), wherein n1>n3>n2, a ratio of b/a is between 1.5 and 5.0, and a ratio of d/a is between 2.0 and 7.0. The fiber supports a single (one and only one) polarization within a Single Polarization Band (SPB). The fiber (20) may be coupled to optical components in apparatus where single polarization properties are desired.

Abstract translation: 公开了一种光纤（20），其具有具有短尺寸（a），长尺寸（b）和第一折射率（n <1> 1）的中心横向细长芯部（30）， 围绕中央横向细长的芯的护城河（40），护城河（40）具有第二折射率（n 2/2），外部尺寸（c）和外部尺寸（d），以及 围绕护城河（40）的包层（50），包层（50）具有第三折射率（n 3/3），其中n 1 n 3 < / SUB >> n 2，b / a的比例在1.5和5.0之间，d / a的比率在2.0和7.0之间。 光纤支持在单极化带（SPB）内的单一（仅一个）极化。 纤维（20）可以耦合到需要单极化性质的设备中的光学部件。

公开(公告)号：US20050165186A1

公开(公告)日：2005-07-28

申请号：US11038307

申请日：2005-01-20

Applicant: Huey Wu ,  Charles Martin ,  Xin Chen

Inventor： Huey Wu ,  Charles Martin ,  Xin Chen

IPC: C08J5/18 ,  B01D69/10 ,  B01D71/32 ,  C08F214/18 ,  C08F214/26 ,  C08J5/22 ,  H01M4/86 ,  H01M4/88 ,  H01M8/02 ,  H01M8/10 ,  C08F16/24

CPC classification number: H01M8/1004 ,  B01D69/10 ,  B01D71/32 ,  B01D71/38 ,  B01D71/76 ,  C08F214/184 ,  C08F214/262 ,  C08J5/2281 ,  C08J2327/18 ,  H01M4/8605 ,  H01M8/1023 ,  H01M8/1039 ,  H01M8/106 ,  Y10T442/2918

Abstract: An ionomer and a process for forming the ionomer such that the ionomer has (1) low equivalent weight; below 950, preferably between 625 and 850, and most preferably between about 700 and about 800; and (2) high conductivity, (greater than 0.15 S/cm). In an alternative embodiment, the ionomer has (1) low equivalent weight; below 950, preferably between 625 and 850, and most preferably between about 700 and about 800; and (2) acceptably low hydration, (less than about 75 weight percent). These ionomers are adapted to be processed into thin films that have acceptable physical stability. They are thus extremely well-suited for low humidity or high temperature fuel cell applications.

Abstract translation: 离聚物和用于形成离聚物的方法使得离聚物具有（1）低当量重量; 低于950，优选625至850，最优选约700至约800; 和（2）高导电率（大于0.15S / cm）。 在替代实施方案中，离聚物具有（1）低当量重量; 低于950，优选625至850，最优选约700至约800; 和（2）可接受的低水合（小于约75重量％）。 这些离聚物适于被加工成具有可接受的物理稳定性的薄膜。 因此，它们非常适用于低湿度或高温燃料电池应用。

公开(公告)号：US06716405B1

公开(公告)日：2004-04-06

申请号：US09440277

申请日：1999-11-15

Applicant: Xin Chen ,  Linghua Wu

Inventor： Xin Chen ,  Linghua Wu

IPC: C01C112

CPC classification number: B01J8/34 ,  B01J8/1872 ,  B01J2208/00628 ,  B01J2208/0084 ,  C07C253/26 ,  C07C255/08

Abstract: A process for removing unreacted ammonia from an effluent of a catalyst bed used in a hydrocarbon ammoxidation reaction is provided. The process includes a step of providing a fluidized bed reactor. The reactor includes the catalyst bed for reacting ammonia and hydrocarbons therein. The reactor also includes a dilute phase of the catalyst bed disposed above the catalyst bed. The reactor further includes a set of internals disposed at least partially within the dilute phase of the catalyst bed. The reactor additionally includes an inlet of a first-stage cyclone separator disposed above the set of internals. The process also includes a step of removing the unreacted ammonia from the effluent of the catalyst bed by passing the effluent through the set of internals. The ammonia and hydrocarbons present in the effluent contact the dilute phase of the catalyst bed and react therein.

Abstract translation: 提供了从用于烃氨氧化反应的催化剂床的流出物中除去未反应的氨的方法。 该方法包括提供流化床反应器的步骤。 反应器包括用于使氨和其中的烃反应的催化剂床。 反应器还包括设置在催化剂床上方的催化剂床的稀相。 反应器还包括至少部分地设置在催化剂床的稀相中的一组内件。 反应器还包括设置在内部组件上方的第一级旋风分离器的入口。 该方法还包括通过使流出物通过该组内件从催化剂床的流出物除去未反应的氨的步骤。 存在于流出物中的氨和烃与催化剂床的稀相接触并在其中反应。

公开(公告)号：US5834394A

公开(公告)日：1998-11-10

申请号：US904914

申请日：1997-08-01

Applicant: Xin Chen ,  Lianghua Wu

Inventor： Xin Chen ,  Lianghua Wu

IPC: B01J23/88 ,  B01J23/887 ,  B01J27/192 ,  C07B61/00 ,  C07C253/18 ,  C07C253/26 ,  C07C255/08 ,  B01J23/00 ,  B01J23/10

CPC classification number: B01J23/002 ,  B01J23/8876 ,  C07C253/18 ,  B01J2523/00 ,  Y02P20/52

Abstract: A catalyst for ammoxidation of propylene to acrylonitrile, comprising a) a catalytic composition represented by the following general formula: A.sub.a B.sub.b C.sub.c D.sub.d Na.sub.e Fe.sub.f Bi.sub.g Mo.sub.h O.sub.xwherein A represents K, Rb, Cs, Tl, or a mixture thereof, B represents Mn, Mg, Sr, Ca, Ba, or a mixture thereof, C represents P, As, B, Sb, Cr, W, V, or a mixture thereof, and D represents one of the following groups: 1) Ni alone, 2) Co alone, 3) Ni and one selected from Li, Pr, Nd, or a mixture thereof, 4) Co and one selected from Li, Pr, Nd, or a mixture thereof, 5) Ni, Co and one selected from Li, Pr, Nd, or a mixture thereof, and a=0.001.about.2.0, b=0.about.4.5, c=0.01.about.8.0, d=0.01.about.22.0, e=0.01.about.0.7, f=0.01.about.8.0, g=0.01.about.6.0, h=8.about.16, and x=number of oxygen atoms required to satisfy the valence requirement of thether elements present, and b) a silica carrier

Abstract translation: 一种用于将丙烯氨氧化成丙烯腈的催化剂，其包含a）由以下通式表示的催化组合物：Aa Bb Cc Dd Nae Fef Big Moh Ox其中A表示K，Rb，Cs，T1或其混合物，B表示Mn ，Mg，Sr，Ca，Ba或它们的混合物，C表示P，As，B，Sb，Cr，W，V或它们的混合物，D表示下列基团之一：1）单独的Ni，2 ）Co，3）Ni和选自Li，Pr，Nd或其混合物的一种，4）Co和选自Li，Pr，Nd或其混合物的一种，5）Ni，Co和选自Li ，Pr，Nd或它们的混合物，和a = 0.001 DIFFERENCE 2.0，b = 0差异4.5，c = 0.01差异8.0，d = 0.01差异22.0，e = 0.01差异0.7，f = 0.01差异8.0，g = 0.01 DIFFERENCE 6.0，h = 8差异16，x =满足存在的其他元素的化合价要求所需的氧原子数，以及b）二氧化硅载体

公开(公告)号：US5832827A

公开(公告)日：1998-11-10

申请号：US893703

申请日：1997-07-11

Applicant: Steve J. Pistro ,  Xin Chen

Inventor： Steve J. Pistro ,  Xin Chen

IPC: B41J2/335 ,  B41F16/00 ,  B41J2/325 ,  B41J31/00 ,  B41M5/26 ,  B41M5/382 ,  B41M5/392 ,  B41M5/40 ,  B41M5/41 ,  B41M5/42 ,  B41M5/44 ,  B41M5/50 ,  B41M5/52 ,  B41F1/08

CPC classification number: B41M5/42 ,  B41J2/325 ,  B41M5/38221 ,  B41M5/392 ,  B41M5/44 ,  B41M5/443

Abstract: A method of printing on a release layer of linerless label material including the step of advancing linerless label material and a thermal transfer ribbon coated with ink through a thermal printer. The ribbon is moved over a heated transfer element of the printer. The heated transfer element is located on an edge or on a corner of an edge of the thermal printer. The ribbon is then heated to cause the ink to reach a molten or fluid state. The ink transfers in its molten or fluid state to the release layer of the linerless label material. Certain wax/resin and resin based thermal transfer ribbons and silicone release coatings have been found to be particularly effective for increasing the ink transfer and anchorage during corner edge and true edge printing on linerless label material.

Abstract translation: 一种在无衬标签材料的剥离层上印刷的方法，包括通过热敏打印机前进无衬标签材料和涂覆有油墨的热转印带的步骤。 色带移动到打印机的热转印元件上。 加热的转印元件位于热敏打印机的边缘的边缘或拐角处。 然后加热带状物以使墨水达到熔融或流体状态。 油墨以其熔融或流体状态转移到无衬标签材料的释放层。 已经发现某些蜡/树脂和基于树脂的热转印带和有机硅剥离涂层对于增加在边缘处的油墨转移和固着以及无衬标签材料上的真实边缘印刷特别有效。

公开(公告)号：US5718231A

公开(公告)日：1998-02-17

申请号：US557175

申请日：1996-02-20

Applicant: Richard James Dewhurst ,  Peter Alfred Payne ,  Qing Xin Chen ,  Kok Fu Pang

Inventor： Richard James Dewhurst ,  Peter Alfred Payne ,  Qing Xin Chen ,  Kok Fu Pang

IPC: G01N29/00 ,  A61B8/00 ,  A61B18/20 ,  A61B18/24

CPC classification number: A61B18/245

Abstract: A laser ultrasound probe, suitable for intravascular use, of the kind having an ultrasonic transducer element comprising an ultrasound receiving surface of piezoelectric polymeric material and an optical fiber with one end directed forwardly from that surface and arranged to receive laser radiation for transmission through the optical fiber and emission from the said one end thereof, wherein the optical fiber is coupled with laser source means adapted to provide alternatively a relatively low average power laser beam, which, when modulated or pulsed and emitted from the one end of the optical fiber and incident on a target, will generate ultrasound at an intensity suitable to be received by the transducer element and converted thereby into electrical monitoring signals, and a relatively high average power laser beam suitable, when incident on the said target, to produce ablation thereof, the transducer element being sufficiently robust to withstand the ultrasound which is then also generated. The relatively low average power laser beam may alternatively be at a first wavelength which, when modulated or pulsed and emitted from the one end of the optical fiber into a medium which is highly absorptive at that wavelength, will cause said medium to generate and propagate ultrasound at an intensity suitable to be reflected by a target contacted by said medium and received by the transducer element and converted thereby into electrical monitoring signals, the relatively high average power laser beam being then at a second wavelength at which the said medium is transmissive and being suitable, when incident on the said target, to produce ablation thereof, the transducing element being sufficiently robust to withstand the ultrasound which is then also generated.

Abstract translation: PCT No.PCT / GB94 / 01276 Sec。 371 1995年12月20日第 102（e）1995年12月20日PCT PCT 1994年6月14日PCT公布。 出版物WO94 / 28804 日期1994年12月22日一种适用于血管内使用的激光超声探头，其具有包括压电聚合材料的超声波接收表面的超声波换能器元件和一端从该表面向前指向的光纤，并布置成接收激光辐射 用于通过光纤传输并从其所述一端发射，其中光纤与激光源装置耦合，激光源装置适于提供相对低的平均功率的激光束，该激光束当被调制或脉冲并从 光纤并入射到目标上，将以适于被换能器元件接收的强度产生超声波，从而转换为电监控信号，并且当入射到所述目标上时适合于相对较高的平均功率激光束产生 其消融，换能器元件足够坚固以承受超声波 然后也产生h。 相对较低的平均功率激光束可以替代地处于第一波长，当从光纤的一端被调制或脉冲和发射到在该波长处高度吸收的介质中时，其将使所述介质产生并传播超声波 以适合于由所述介质接触并由换能器元件接收并由其转换成电监控信号的目标反射的强度，相对较高的平均功率激光束然后处于所述介质透射的第二波长，并且是 合适的是，当入射到所述目标上时，其产生消融，所述换能元件足够坚固以承受然后也产生的超声波。

公开(公告)号：US5177048A

公开(公告)日：1993-01-05

申请号：US786790

申请日：1991-11-04

Applicant: Xin Chen ,  Lianghua Wu

Inventor： Xin Chen ,  Lianghua Wu

IPC: B01J23/887 ,  B01J27/192

CPC classification number: B01J23/8876 ,  B01J27/192

Abstract: A supplementary catalyst for long term maintaining the activity of the fluidized bed catalysts for ammoxidation of propylene to produce acrylonitrile. Particularly, the present invention provides a supplementary catalyst for compensating for the loss of the fluidized bed catalyst caused by the volatilization of molybdenum and loss of fine particles during operation. By adopting the supplementary catalyst, the life-time of the fluidized bed catalysts for ammoxidation of propylene to produce acrylonitrile in fluidized bed reactors can be increased from 1-1.5 years to 4 or more than 4 years.

Abstract translation: 长期保持流化床催化剂用于丙烯氨氧化以产生丙烯腈的活性的补充催化剂。 特别地，本发明提供补充催化剂，用于补偿由于钼的挥发而引起的流化床催化剂的损失和在运行期间的细颗粒的损失。 通过采用辅助催化剂，流化床反应器中丙烯氨氧化生产丙烯腈的流化床催化剂的使用寿命可以从1-1.5年提高到4年或4年以上。

公开(公告)号：US20240027403A1

公开(公告)日：2024-01-25

申请号：US18357142

申请日：2023-07-23

Applicant: Sergey Vinogradov ,  Xin Chen ,  Jay Fisher

Inventor： Sergey Vinogradov ,  Xin Chen ,  Jay Fisher

IPC: G01N29/24 ,  G01N29/265

CPC classification number: G01N29/2412 ,  G01N29/265 ,  G01N2291/044 ,  G01N2291/0422

Abstract: A “partial activation” method of magnetostrictive guided wave testing of a structure. A coil-wrapped magnetostrictive strip is acoustically coupled to the surface of the structure. A permanent magnet is placed over a portion of the strip, such that the permanent magnet covers all or most of the width of the strip but only a portion of its length. A pulsed alternating current source activates the magnetostrictive strip, thereby producing magnetostrictive vibrations in the magnetostrictive strip, and thereby resulting in guided waves in the structure. Response signals are received, then the permanent magnet is moved to a next position along the length of the magnetostrictive strip. As the magnet is moved along the strip, the strip is activated and response signals are received, thereby testing a desired portion of the structure under the strip. The response signals are analyzed to determine the presence of anomalies in the structure.

公开(公告)号：US11085076B2

公开(公告)日：2021-08-10

申请号：US15763364

申请日：2016-09-28

Applicant: Jingyue Ju ,  Xiaoxu Li ,  Xin Chen ,  Zengmin Li ,  Shiv Kumar ,  Shundi Shi ,  Cheng Guo ,  Jianyi Ren ,  Min-Kang Hsieh ,  Minchen Chien ,  Chuanjuan Tao ,  Ece Erturk ,  Sergey Kalachikov ,  James J. Russo

Inventor： Jingyue Ju ,  Xiaoxu Li ,  Xin Chen ,  Zengmin Li ,  Shiv Kumar ,  Shundi Shi ,  Cheng Guo ,  Jianyi Ren ,  Min-Kang Hsieh ,  Minchen Chien ,  Chuanjuan Tao ,  Ece Erturk ,  Sergey Kalachikov ,  James J. Russo

IPC: C12Q1/68 ,  C07H19/10 ,  C07H19/14 ,  C07H19/20 ,  C12Q1/6869

Abstract: Disclosed herein, inter alia, are compounds, compositions, and methods of use thereof in the sequencing of a nucleic acid.