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1. 发明授权

US5408181A NMR system for measuring polymer properties 失效
标题翻译：用于测量聚合物性质的NMR系统
公开(公告)号：US5408181A
公开(公告)日：1995-04-18
申请号：US113833
申请日：1993-08-30
申请人： Ronald L. Dechene , Thomas B. Smith , David R. Day , Christian I. Tanzer , Scott A. Marino , Ronald J. Tache , Ajoy K. Roy
发明人： Ronald L. Dechene , Thomas B. Smith , David R. Day , Christian I. Tanzer , Scott A. Marino , Ronald J. Tache , Ajoy K. Roy
IPC分类号： G01N24/08 , G01R33/31 , G01R33/32 , G01R33/36 , G01R33/44 , G01R33/563 , G01R33/20
CPC分类号： G01N24/085 , G01R33/31 , G01R33/563
摘要： A pulsed nmr analysis system for polymers materials extracted from industrial processes at a mobility enhancing temperature (at or above glass transition temperature for amorphous polymers, at the crystalline transition temperature for crystalline and semi-crystalline polymers). The sample is measured via nmr techniques and results correlated to viscosity and melt index or melt flow (which are related to average molecular weights). The nmr system (in or out of resonance) includes: sample throughput system (P, LI, V1, V2) and user system controls (104) to establish digitized free induction decay curves (C), from which components functions are determined using linear or non-linear regression techniques to correlate the curve components to the target nuclei and to flow rates in plastics. Substantial improvement of correlation of nmr derived constants and equations of a free induction decay curve with the foregoing polymer properties is obtained via (1) conducting the nmr process at a mobility enhancing temperature (normally elevated compared to the industrial process temperature of the industrial process) and (2) holding temperature substantially constant at such elevated temperature.
摘要翻译：用于在工业过程中以迁移率增强温度（对于无定形聚合物的玻璃化转变温度以上，在结晶和半结晶聚合物的结晶转变温度下）提取的聚合物材料的脉冲nmr分析系统。样品通过nmr技术测量，结果与粘度和熔体指数或熔体流动相关（与平均分子量相关）。 nmr系统（进出谐振）包括：采样吞吐系统（P，LI，V1，V2）和用户系统控制（104）建立数字化的自由感应衰减曲线（C），从中可以使用线性或非线性回归技术来将曲线分量与目标核相关联，并使塑料中的流速相关。通过（1）以迁移率提高温度（与工业过程的工业过程温度相比通常升高）进行nmr工艺，获得具有上述聚合物性质的自由诱导衰变曲线的nmr导出常数和方程的相关性的显着改善，和（2）在这种升高的温度下保持温度基本恒定。

2. 发明授权

US5396806A On-line mass flow measurement in flowing two component systems 失效
标题翻译：流动双组分系统中的在线质量流量测量
公开(公告)号：US5396806A
公开(公告)日：1995-03-14
申请号：US150961
申请日：1993-11-12
申请人： Ronald L. Dechene , David R. Day , Thomas B. Smith
发明人： Ronald L. Dechene , David R. Day , Thomas B. Smith
IPC分类号： B01J8/00 , G01F1/64 , G01F1/708 , G01F1/712 , G01F1/74 , G01N27/22
CPC分类号： G01N27/221 , B01J8/001 , B01J8/0015 , G01F1/64 , G01F1/7088 , G01F1/712 , G01F1/74
摘要： Apparatus and process for measuring mass flow of a slurry mixture of two components of materials, such as a flow of catalyst solid particles (the first component) or droplets in a fluid carrier (the second component). The slurry mixture is added to a process stream (10) or batch reactor. The flow velocity and the volume fraction of one component are measured and combined with the known specific gravity, of the component being measured, and the physical dimensions of the pipe, in which the slurry mixture is flowing, to determine the mass flow of the component. The flow velocity is measured by correlating signals at two separated locations along the flow path, and the volume fraction is measured by combining the known dielectric constants of each of the materials in the mixture and the measured capacitance of the mixture. The capacitance is measured from electrodes which may be isolated from the flowing materials in some applications, but not isolated from the flowing materials in other applications. The temperature (9) and pressure (11) are compensated in the final calculation, and the mass flow result is used to control, via feedback, the amount of such materials delivered. Also, a subtraction technique to remove interfering power line noise is implemented to improve sensitivity.
摘要翻译：用于测量材料的两种组分的浆料混合物的质量流量的装置和方法，例如流体载体（第二组分）中的催化剂固体颗粒（第一组分）或液滴的流动。将浆料混合物加入到工艺流（10）或间歇式反应器中。测量一个组分的流速和体积分数，并与所测量的组分的已知比重和浆料混合物流动的管的物理尺寸相结合以确定组分的质量流量。通过在沿着流动路径的两个分开的位置处相关联信号来测量流速，并且通过组合混合物中每种材料的已知介电常数和混合物的测量电容来测量体积分数。从一些应用中可以从流动材料中分离的电极测量电容，但在其它应用中不与流动材料隔离。在最终计算中补偿温度（9）和压力（11），质量流量结果用于通过反馈控制所输送的材料的数量。此外，实施用于消除干扰电力线噪声的减法技术来提高灵敏度。

3. 发明授权

US5675253A Partial least square regression techniques in obtaining measurements of one or more polymer properties with an on-line nmr system 失效
标题翻译：使用在线nmr系统获得一种或多种聚合物性质的测量的部分最小二乘回归技术
公开(公告)号：US5675253A
公开(公告)日：1997-10-07
申请号：US586559
申请日：1996-01-16
申请人： Thomas B. Smith , David R. Day , Ajoy K. Roy , Christian I. Tanzer
发明人： Thomas B. Smith , David R. Day , Ajoy K. Roy , Christian I. Tanzer
IPC分类号： G01R33/32 , G01N24/08 , G01R33/389 , G01R33/44 , G01R33/46 , G01V3/00
CPC分类号： G01N24/085 , G01R33/389 , G01R33/4625 , G01N24/082
摘要： An on-line nuclear magnetic resonance (NMR) system, and related methods, are useful for predicting one or more properties of interest of a polymer. In one embodiment, a neural network is used to develop a model which correlates process variables in addition to manipulated NMR output to predict a polymer property of interest. In another embodiment, a partial least square regression technique is used to develop a model of enhanced accuracy. Either the neural network technique or the partial least square regression technique may be used in conjunction with a described multi-model or best-model-selection scheme according to the invention. The polymer can be a plastic such as polyethylene, polypropylene, or polystyrene, or a rubber such as ethylene propylene rubber.
摘要翻译：在线核磁共振（NMR）系统和相关方法可用于预测聚合物的一种或多种感兴趣的性质。在一个实施例中，使用神经网络来开发除了操纵的NMR输出之外关联过程变量以预测感兴趣的聚合物性质的模型。在另一个实施例中，使用偏最小二乘回归技术来开发增强精度的模型。神经网络技术或偏最小二乘回归技术可以与根据本发明的所描述的多模型或最佳模型选择方案结合使用。聚合物可以是诸如聚乙烯，聚丙烯或聚苯乙烯之类的塑料，或橡胶如乙丙橡胶。

4. 发明授权

US5519319A Obtaining measurements of improved accuracy of one or more polymer properties with an on-line NMR system 失效
标题翻译：使用在线NMR系统获得改进的一种或多种聚合物性质的精度的测量
公开(公告)号：US5519319A
公开(公告)日：1996-05-21
申请号：US491632
申请日：1995-06-19
申请人： Thomas B. Smith , Scott A. Marino , Ronald J. Tache , David R. Day , Christian I. Tanzer , Tadd B. Hughes , Ajoy K. Roy
发明人： Thomas B. Smith , Scott A. Marino , Ronald J. Tache , David R. Day , Christian I. Tanzer , Tadd B. Hughes , Ajoy K. Roy
IPC分类号： G01R33/389 , G01R33/44 , G01R33/46 , G01V3/00
CPC分类号： G01R33/389 , G01N24/085 , G01N24/082 , G01R33/4625
摘要： A nuclear magnetic resonance (NMR) system, and related method, develops two or more regression equations or models for a particular polymer property of interest (e.g., melt index or MI) during a calibration procedure using known samples of a material. The polymer material can be, for example, a plastic (e.g., polyethylene, polypropylene, or polystyrene) or a rubber (e.g., ethylene propylene rubber). Regression models for one or more discrete (i.e., two-valued) variables also are developed during calibration, and these models allow a prediction to be made about which of the two or more property (e.g., MI) models should be used for any particular sample of unknown material. The prediction obtained from the discrete variable model indicates which of the two or more models will produce the most accurate estimation of the property of interest for the unknown sample. The best model is thus selected, and then it is used to estimate the property of interest.
摘要翻译：核磁共振（NMR）系统和相关方法在使用已知材料样品的校准过程期间针对特定的感兴趣的聚合物性质（例如熔体指数或MI）开发两个或多个回归方程或模型。聚合物材料可以是例如塑料（例如聚乙烯，聚丙烯或聚苯乙烯）或橡胶（例如乙丙橡胶）。在校准期间，还开发了一个或多个离散（即二值）变量的回归模型，这些模型允许对两个或多个属性（例如，MI）模型中的哪一个应用于任何特定的模型进行预测未知材料样品。从离散变量模型获得的预测表明两个或更多个模型中的哪一个将产生未知样本的关注属性的最准确估计。因此选择最佳模型，然后用于估计感兴趣的属性。

5. 发明授权

US08994938B2 Raman spectroscopy using diffractive MEMS 有权
$Raman spectroscopy using diffractive MEMS$
公开(公告)号：US08994938B2
公开(公告)日：2015-03-31
申请号：US13486846
申请日：2012-06-01
申请人： David R. Day , Malcolm C. Smith , Peidong Wang
发明人： David R. Day , Malcolm C. Smith , Peidong Wang
IPC分类号： G01J3/44 , G01J3/02 , G01J3/32
CPC分类号： G01J3/32 , G01J3/0229 , G01J3/0272 , G01J3/44 , G01J3/4412 , G01N21/65 , G01N2201/06113
摘要： A Raman spectrometer including a laser excitation source, edge filters, and detection optics that direct light into a spectrograph. A spectrograph containing a dispersive element and optics that directs various wavelengths of light onto a segmented diffractive MEMS light modulator array. The MEMS array, depending on actuation state, directs light either to or away from a single detector. Control electronics drive the MEMS light modulator for either sequential wavelength measurement or multiplexed wavelength measurement (Hadamard for example).

6. 发明授权

US4589160A Apparatus for stripping fluids including dimensionally stable and substantially rigid bag 失效
标题翻译：用于剥离流体的装置，包括尺寸稳定和基本刚性的袋
公开(公告)号：US4589160A
公开(公告)日：1986-05-20
申请号：US619316
申请日：1984-06-11
申请人： David R. Day , Lucian G. McElroy
发明人： David R. Day , Lucian G. McElroy
IPC分类号： B60S3/00 , F26B19/00
CPC分类号： B60S3/002
摘要： An apparatus for stripping fluids from the surface of a vehicle (26) including a plurality of dimensionally stable and substantially rigid bags (12) including an inlet (14) for introducing air under pressure into the bag (12) and an elongated opening at one end of the bag (12) defining a nozzle end (16,16') of smaller cross sectional area than the inlet (14) for emitting a stream of air. A support structure including an air distributor (18) supports the bag (12) to extend toward the object (26) wherein the nozzle end (16,16') of the bag (12) lies in the path of motion of the object (26) to cause physical engagement between the nozzle end (16,16') of the bag (12) and the object (26) to bring the stream of air emitted from the nozzle opening into close spacial relationship with the surface of the object (26) to strip fluid from the object. A bellows member (36) operatively connects the bag (12) to the air distributor (18) at one end to provide flexible joints for allowing hinging movement of the bag (12) substantially along a single axis. The bags (12) are self supporting from the air distributor (18).
摘要翻译：一种用于从车辆表面剥离流体的装置，包括多个尺寸稳定且基本上刚性的包装袋（12），所述袋子包括用于将空气在压力下引入到袋子（12）中的入口（14）和一个细长的开口所述袋（12）的端部限定具有比所述入口（14）更小的横截面积的喷嘴端（16,16'），用于排出空气流。包括空气分配器（18）的支撑结构支撑袋（12）朝向物体（26）延伸，其中袋（12）的喷嘴端（16,16'）位于物体的运动路径（ 26）引起袋（12）的喷嘴端（16,16'）与物体（26）之间的物理接合，以使从喷嘴开口排出的空气流与物体的表面成空间关系（ 26）从物体剥离流体。波纹管构件（36）在一端可操作地将袋（12）连接到空气分配器（18），以提供柔性接头，用于允许袋（12）基本上沿单个轴线的铰接运动。袋子（12）从空气分配器（18）自支撑。

7. 发明授权

US4161801A Fluid stripping apparatus 失效
标题翻译：流体剥离装置
公开(公告)号：US4161801A
公开(公告)日：1979-07-24
申请号：US887040
申请日：1978-03-16
申请人： David R. Day , Lucian G. McElroy
发明人： David R. Day , Lucian G. McElroy
IPC分类号： B60S3/00 , B60S3/04
CPC分类号： B60S3/002 , Y10S15/02
摘要： An apparatus for stripping fluids from the surface of an object including a flexible, inflatable bag of generally rectangular transverse cross section including an inlet for introducing air under pressure into the bag and an elongated opening at one end of the bag defining a nozzle for emitting a stream of air and an air distributor for supplying air to the bag and for supporting the bag so that it extends toward the object wherein the nozzle end of said bag lies in the path of motion of the object to cause physical engagement between the nozzle end of the bag and the object to bring the stream of air emitted from the nozzle opening into close spacial relationship with the surface of the object.
摘要翻译：一种用于从物体表面剥离流体的装置，包括一个大致矩形横截面的柔性充气袋，包括用于将压缩空气引入袋中的入口和在该袋的一端处的细长开口，形成用于发射空气流和空气分配器，用于向袋子供应空气并用于支撑袋子，使得其朝向物体延伸，其中所述袋子的喷嘴端处于物体的运动路径中，以引起物体的喷嘴端之间的物理接合袋和物体将从喷嘴开口排出的空气流与物体的表面形成密切的空间关系。

8. 发明授权

US07505641B1 Optical biosensor incorporating wavelength encoding of multiple unlabeled analytes 失效
标题翻译：包含多个未标记分析物的波长编码的光学生物传感器
公开(公告)号：US07505641B1
公开(公告)日：2009-03-17
申请号：US11505636
申请日：2006-08-17
申请人： Stephen D. Senturia , Malcolm C. Smith , Michael A. Butler , David R. Day
发明人： Stephen D. Senturia , Malcolm C. Smith , Michael A. Butler , David R. Day
IPC分类号： G02B6/00 , C12M1/34
CPC分类号： G02B6/124 , G01N21/774 , G02B2006/12107 , G02B2006/12138
摘要： A waveguide-based sensor is disclosed that uses one or more grating patterns of a bioreceptor on a surface of the waveguide to provide a wavelength-specific sensor response without the requirement of labeling the target molecule or the bioreceptor. Furthermore, there is provided a biosensor that, at least to a first order, is insensitive to non-specific binding.
摘要翻译：公开了一种基于波导的传感器，其使用波导表面上的生物受体的一个或多个光栅图案来提供波长特异性传感器响应，而不需要标记靶分子或生物受体。此外，提供了一种生物传感器，其至少对于第一级对非特异性结合不敏感。

9. 发明授权

US4409035A Clamp for varying the hinging action of a fluid stripping bag 失效
标题翻译：用于改变流体剥离袋的铰链作用的夹具
公开(公告)号：US4409035A
公开(公告)日：1983-10-11
申请号：US338577
申请日：1982-01-08
申请人： Lucian G. McElroy , David R. Day
发明人： Lucian G. McElroy , David R. Day
IPC分类号： B60S3/00 , B08B1/00 , B08B13/00
CPC分类号： B60S3/002 , Y10S15/02 , Y10T403/4611 , Y10T403/4614
摘要： An adjustable clamp (26) for selectively varying the hinging action of a flexible, inflatable fluid-stripping bag (12) including an elongated bag inlet (14) having a predetermined cross-sectional area and a nozzle (16) at one end thereof and wherein the bag inlet (14) is mounted about an opening (24) of a plenum (20) for supplying air to the bag (12). The clamp comprises an adjustable frame (26) adapted to be disposed about the bag inlet (14) and spaced therefrom to adjustably limit the extent to which the bag inlet (14) opens to determine the cross-sectional area and a band member and fastening device for securing the frame (26) about the bag inlet (14) whereby a change in the cross-sectional area produced by the frame (26) changes the resistance of the hinging action of the bag (12).A method is also provided for selectively varying the hinging action of the flexible, inflatable fluid-stripping bag (12) including the steps of mounting the bag inlet (14) about an opening (24) of a plenum (20) for supplying air to the bag (12) and characterized by selectively varying the cross-sectional area of the bag inlet (14) to vary the hinging action of the bag (12) whereby changing the cross-sectional area of the bag inlet (14) changes the resistance to hinging action of the bag (12).
摘要翻译：一种用于选择性地改变柔性可充气流体剥离袋（12）的铰链作用的可调节夹具（26），包括在其一端具有预定横截面积的细长袋入口（14）和喷嘴（16），其中所述袋入口（14）围绕用于向所述袋（12）供应空气的增压室（20）的开口（24）安装。夹具包括适于围绕袋入口（14）设置并与其间隔开的可调节框架（26），以可调节地限制袋入口（14）打开以确定横截面面积的程度，以及带构件和紧固件用于将框架（26）围绕袋入口（14）固定的装置，由此由框架（26）产生的横截面积的变化改变了袋子（12）的铰接动作的阻力。还提供了一种用于选择性地改变柔性可充气流体剥离袋（12）的铰链作用的方法，包括以下步骤：将袋入口（14）围绕用于供应空气的增压室（20）的开口（24）所述袋（12）的特征在于，选择性地改变所述袋入口（14）的横截面积以改变所述袋（12）的铰接作用，由此改变所述袋入口（14）的横截面面积改变所述袋到袋子（12）的铰链作用。

10. 发明授权

US6008662A Apparatus and method for measuring conditions in fluidized beds 失效
标题翻译：用于测量流化床条件的装置和方法
公开(公告)号：US6008662A
公开(公告)日：1999-12-28
申请号：US741917
申请日：1996-10-31
申请人： Robert E. Newton , David R. Day , Ron L. Swartzentruber
发明人： Robert E. Newton , David R. Day , Ron L. Swartzentruber
IPC分类号： B01J8/24 , C08F10/00 , G01N27/60 , G01R27/00
CPC分类号： B01J8/1809 , C08F10/00 , G01N27/60
摘要： Conditions in a fluidized bed are measured with a probe and a circuit. The bed can be a polymerization reactor's reaction chamber, and the conditions can result in "sheeting" which is the build up of polymer on the chamber walls. The probe protrudes into the bed and detects a current which generally is a function of at least the impact and charge of particulates in the bed. The current detected by the probe is related to the conditions in the bed. The circuit measures the detected current. The probe has an inner probe piece of metallic material within an insulator of polymeric material. A portion of the insulator protrudes a first distance into the bed, and a portion of the inner probe piece protrudes a second distance into the bed. The first distance is less than or equal to the second distance. The insulator typically does not extend as far into the bed as the inner probe piece.
摘要翻译：用探针和电路测量流化床中的条件。床可以是聚合反应器的反应室，并且条件可导致聚合物在室壁上积聚的“片材”。探针突出到床中并检测通常至少是床中的颗粒的冲击和电荷的作用的电流。探头检测到的电流与床上的状况有关。电路测量检测到的电流。探针在聚合物材料的绝缘体内具有金属材料的内部探针片。绝缘体的一部分突出到床中的第一距离，并且内探测件的一部分突出到床的第二距离。第一距离小于或等于第二距离。绝缘体通常不像内部探针片一样延伸到床内。

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