公开(公告)号：US08790006B2

公开(公告)日：2014-07-29

申请号：US12627293

申请日：2009-11-30

申请人： Hejie Li ,  Samhita Dasgupta ,  Edward Randall Furlong ,  Nirm Velumylum Nirmalan ,  Anquan Wang ,  Guanghua Wang ,  Stephen Thomas Walls ,  Lesley Ellen Brown

发明人： Hejie Li ,  Rodrick Gordon Brown ,  Samhita Dasgupta ,  Edward Randall Furlong ,  Nirm Velumylum Nirmalan ,  Anquan Wang ,  Guanghua Wang ,  Stephen Thomas Walls

IPC分类号： G01J5/00 ,  G01K1/14 ,  G01K11/00

CPC分类号： G01J5/0014 ,  G01J3/02 ,  G01J3/0216 ,  G01J3/0218 ,  G01J3/28 ,  G01J3/36 ,  G01J3/42 ,  G01J3/443 ,  G01J5/0022 ,  G01J5/0044 ,  G01J5/0088 ,  G01J5/08 ,  G01J5/0815 ,  G01J5/0821 ,  G01J5/0846 ,  G01J5/0862 ,  G01J5/58

摘要： A thermal measurement system that includes a light collection device and a detection system in communication with the device. The detection system includes two detection subsystems, wherein one subsystem is configured to detect light from a surface of an object, while the other subsystem is configured to detect light from the surface and a gas. The present invention has been described in terms of specific embodiment(s), and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appending claims.

摘要翻译： 一种热测量系统，其包括光收集装置和与装置通信的检测系统。 检测系统包括两个检测子系统，其中一个子系统被配置为检测来自物体表面的光，而另一子系统被配置为检测来自表面的气体和气体。 已经根据具体实施例描述了本发明，并且认识到除了明确说明的那些之外的等同物，替代方案和修改是可能的并且在所附权利要求的范围内。

公开(公告)号：US08625098B2

公开(公告)日：2014-01-07

申请号：US12971154

申请日：2010-12-17

申请人： Hejie Li ,  Shawn David Wehe ,  Keith Robert McManus

发明人： Hejie Li ,  Shawn David Wehe ,  Keith Robert McManus

IPC分类号： G01N21/00 ,  G01J3/433 ,  G01N21/39

CPC分类号： G01J3/433 ,  F02C9/26 ,  F02D41/1439 ,  F02D41/1451 ,  F05D2260/80 ,  G01N21/3504 ,  G01N21/359 ,  G01N21/39 ,  G01N2021/399

摘要： A real-time monitoring of an equivalence ratio of a gas-fuel mixture of a gas turbine engine is provided. The system includes multiple optical probes arranged on a plurality of fuel nozzles for transmitting laser beams directly through a gas-fuel mixture or indirectly by reflecting the laser beams from a surface of a centerbody or burner tube of the fuel nozzle. The system also includes one or more detectors to measure the transmitted laser beams from the multiple optical probes. Further, the system includes a data acquisition subsystem for acquiring and processing signals from the one or more detectors to determine the equivalence ratio of the gas-fuel mixture of the nozzle.

摘要翻译： 提供了对燃气轮机的气体燃料混合物的当量比的实时监测。 该系统包括布置在多个燃料喷嘴上的多个光学探针，用于直接通过气体 - 燃料混合物传输激光束，或间接地通过从燃料喷嘴的中心体或燃烧器管的表面反射激光束。 该系统还包括一个或多个检测器，用于测量来自多个光学探针的透射的激光束。 此外，该系统包括用于获取和处理来自一个或多个检测器的信号的数据采集子系统，以确定喷嘴的气体 - 燃料混合物的当量比。

公开(公告)号：US11938244B2

公开(公告)日：2024-03-26

申请号：US17905456

申请日：2021-02-25

申请人： Hejie Li

发明人： Hejie Li ,  Tianfang Wang ,  Xiaosong Liu ,  Guoying Ni

IPC分类号： A61L27/04 ,  A61L27/34 ,  B24B27/033 ,  C22F1/02 ,  C22F1/06 ,  B05D3/00 ,  B05D7/14

CPC分类号： A61L27/047 ,  A61L27/34 ,  B24B27/033 ,  C22F1/02 ,  C22F1/06 ,  A61L2430/02 ,  B05D3/002 ,  B05D7/14

摘要： A heat treatment method for improving the mechanical property and the biofunctional stability of a magnesium alloy is provided, comprising: (1) fully annealing an original cold-drawn magnesium alloy AZ31; (2) polishing a surface of the magnesium alloy AZ31 from the step (1) by a waterproof abrasive paper; (3) heating the magnesium alloy AZ31 obtained from the step (2) to a temperature of 330° C. to 350° C. and keeping the temperature for 3 to 4 hours; and (4) cooling the magnesium alloy AZ31 obtained from the step (3) to room temperature. A method for manufacturing a small-peptide-coated biomaterial and an application of the small-peptide-coated biomaterial are further provided.

公开(公告)号：US20120002035A1

公开(公告)日：2012-01-05

申请号：US12827698

申请日：2010-06-30

申请人： Hejie Li ,  Nirm Velumylum Nirmalan

发明人： Hejie Li ,  Nirm Velumylum Nirmalan

IPC分类号： H04N7/18

CPC分类号： F01D17/085 ,  F05D2260/80 ,  F05D2270/303 ,  G01J5/0014 ,  G01J5/0088 ,  G01J5/602 ,  G01J2005/0077

摘要： In one embodiment, a system includes an imaging system configured to receive an image of a gas and a surface observable through the gas from an interior of a turbine, to split the image into a first two-dimensional intensity map of wavelengths indicative of a temperature of the gas and a second two-dimensional intensity map of wavelengths indicative of a temperature of the surface, and to output signals indicative of the first and second two-dimensional intensity maps.

摘要翻译： 在一个实施例中，系统包括成像系统，该成像系统被配置为接收气体的图像和通过来自涡轮的内部的气体可观察到的表面，以将图像分割成表示温度的波长的第一二维强度图 的气体和表示表面温度的波长的第二二维强度图，以及输出指示第一和第二二维强度图的信号。

公开(公告)号：US08026499B2

公开(公告)日：2011-09-27

申请号：US13083704

申请日：2011-04-11

申请人： Xiaoyong Liu ,  Yufeng Huang ,  John McKinley Poole ,  Gene Smith Berkowitz ,  Anthony Kowal ,  Shawn D. Wehe ,  Hejie Li

发明人： Xiaoyong Liu ,  Yufeng Huang ,  John McKinley Poole ,  Gene Smith Berkowitz ,  Anthony Kowal ,  Shawn D. Wehe ,  Hejie Li

IPC分类号： G01V8/00 ,  G01J3/28

CPC分类号： G01J3/4338

摘要： Several methods of calibrating a wavelength-modulation spectroscopy apparatus configured to measure a concentration of an analyte in a sample gas are disclosed. Each of the methods allows for calibration and recalibration using a relatively safe gas regardless of whether the sample gas for which the concentration of the analyte can be determined is a hazardous gas. In one embodiment of the invention, calibration that is sample-gas specific is accomplished by determining a first slope coefficient and calibration function for the sample gas, after which a scaling factor can be determined based on the first slope coefficient and a second slope coefficient for the same or a different sample gas and used in a subsequent calibration (or recalibration) to scale the calibration function. In other embodiments of the invention, calibration that is not sample-gas specific is accomplished to allow for the determination of the analyte concentration in variable gas compositions and constant gas compositions.

摘要翻译： 公开了一种校准配置成测量样品气体中分析物的浓度的波长调制光谱仪的几种方法。 每种方法允许使用相对安全的气体进行校准和重新校准，而不管可以确定分析物浓度的样品气体是否是有害气体。 在本发明的一个实施例中，通过确定样品气体的第一斜率系数和校准函数来实现样品气体特异性的校准，之后可以基于第一斜率系数和第二斜率系数确定缩放因子， 相同或不同的样品气体，并用于随后的校准（或重新校准）以缩放校准功能。 在本发明的其它实施方案中，完成不是采样气体特异性的校准，以允许确定可变气体组成和恒定气体组成中的分析物浓度。

公开(公告)号：US08217376B2

公开(公告)日：2012-07-10

申请号：US13083697

申请日：2011-04-11

申请人： Xiaoyong Liu ,  Yufeng Huang ,  John McKinley Poole ,  Gene Smith Berkowitz ,  Anthony Kowal ,  Shawn D. Wehe ,  Hejie Li

发明人： Xiaoyong Liu ,  Yufeng Huang ,  John McKinley Poole ,  Gene Smith Berkowitz ,  Anthony Kowal ,  Shawn D. Wehe ,  Hejie Li

IPC分类号： G01V8/00 ,  G01J3/28

CPC分类号： G01J3/4338

摘要： Several methods of calibrating a wavelength-modulation spectroscopy apparatus configured to measure a concentration of an analyte in a sample gas are disclosed. Each of the methods allows for calibration and recalibration using a relatively safe gas regardless of whether the sample gas for which the concentration of the analyte can be determined is a hazardous gas. In one embodiment of the invention, calibration that is sample-gas specific is accomplished by determining a first slope coefficient and calibration function for the sample gas, after which a scaling factor can be determined based on the first slope coefficient and a second slope coefficient for the same or a different sample gas and used in a subsequent calibration (or recalibration) to scale the calibration function. In other embodiments of the invention, calibration that is not sample-gas specific is accomplished to allow for the determination of the analyte concentration in variable gas compositions and constant gas compositions.

摘要翻译： 公开了一种校准配置成测量样品气体中分析物的浓度的波长调制光谱仪的几种方法。 每种方法允许使用相对安全的气体进行校准和重新校准，而不管可以确定分析物浓度的样品气体是否是有害气体。 在本发明的一个实施例中，通过确定样品气体的第一斜率系数和校准函数来实现样品气体特异性的校准，之后可以基于第一斜率系数和第二斜率系数确定缩放因子， 相同或不同的样品气体，并用于随后的校准（或重新校准）以缩放校准功能。 在本发明的其它实施方案中，完成不是采样气体特异性的校准，以允许确定可变气体组成和恒定气体组成中的分析物浓度。

公开(公告)号：US20110138766A1

公开(公告)日：2011-06-16

申请号：US12637783

申请日：2009-12-15

申请人： Ahmed Mostafa ELKady ,  Andrei Tristan Evulet ,  Geir Johan Rørtveit ,  Hejie Li ,  Matthias Finkenrath

发明人： Ahmed Mostafa ELKady ,  Andrei Tristan Evulet ,  Geir Johan Rørtveit ,  Hejie Li ,  Matthias Finkenrath

IPC分类号： F02C9/00 ,  F02C7/08

CPC分类号： F02C3/30 ,  F02C3/34 ,  F05D2260/61 ,  F05D2270/082

摘要： A method of improving emission performance of a gas turbine is provided. The method includes recirculating a portion of an exhaust gas stream to a compressor of the gas turbine via an exhaust gas recirculating system, to reduce concentration of oxygen in a high pressure feed oxidant stream into a combustor of the gas turbine. The method further includes adding diluent to at least one of a fuel stream directed to the combustor or a low pressure feed oxidant stream directed to the compressor, to reduce concentration of oxides of nitrogen (NOx) and increase concentration of carbon dioxide in a resultant exhaust gas stream.

摘要翻译： 提供了一种提高燃气轮机排放性能的方法。 该方法包括将废气流的一部分经由排气再循环系统再循环到燃气轮机的压缩机，以将高压进料氧化剂流中的氧浓度降低到燃气轮机的燃烧器中。 该方法还包括向指向燃烧器的燃料流中的至少一种或指向压缩机的低压进料氧化剂流中的至少一种添加稀释剂，以减少氮氧化物（NOx）的浓度并增加所得排气中二氧化碳的浓度 气流。

公开(公告)号：US07957001B2

公开(公告)日：2011-06-07

申请号：US12249156

申请日：2008-10-10

申请人： Xiaoyong Liu ,  John McKinley Poole ,  Yufeng Huang ,  Daniel M. Stearns ,  Michael J. Gambuzza ,  Gene Smith Berkowitz ,  Anthony Kowal ,  Hejie Li ,  Shawn D. Wehe

发明人： Xiaoyong Liu ,  John McKinley Poole ,  Yufeng Huang ,  Daniel M. Stearns ,  Michael J. Gambuzza ,  Gene Smith Berkowitz ,  Anthony Kowal ,  Hejie Li ,  Shawn D. Wehe

IPC分类号： G01N21/31

CPC分类号： G01J3/4338 ,  G01N21/274 ,  G01N21/39 ,  G01N2021/399

摘要： In one embodiment of the spectroscopy method, the method comprises the steps of modulating the wavelength of a monochromatic radiation at a modulation amplitude and a modulation frequency; determining a first variable representative of an absorbance of an analyte in a sample; and demodulating by phase-sensitive detection the first variable at a harmonic of the modulation frequency to produce a harmonic spectrum of the analyte. In one embodiment of the spectroscopy apparatus, the apparatus comprises a laser diode integrated with a first photodetector configured to detect an intensity of a backward emission from the laser diode and act as a reference detector; a second photodetector configured to detect an intensity of laser radiation exiting a sample; and electronic circuitry coupled to the laser diode and the photodetectors, configured to acquire and process spectra of the sample. In another embodiment, the spectroscopy apparatus comprises a beam splitter configured to split the laser radiation into a first radiation portion and a second radiation portion and a first photodetector configured to detect the intensity of the first radiation portion.

摘要翻译： 在光谱方法的一个实施例中，该方法包括以调制幅度和调制频率调制单色辐射的波长的步骤; 确定代表样品中分析物的吸光度的第一变量; 并通过相位敏感检测对调制频率的谐波处的第一变量进行解调，以产生分析物的谐波谱。 在光谱设备的一个实施例中，该装置包括与第一光电检测器集成的激光二极管，其被配置为检测来自激光二极管的反向发射的强度并用作参考检测器; 第二光电检测器，其被配置为检测离开样品的激光辐射的强度; 以及耦合到所述激光二极管和所述光电检测器的电子电路，被配置为获取和处理所述样品的光谱。 在另一个实施例中，光谱设备包括分束器，其配置成将激光辐射分裂成第一辐射部分和第二辐射部分，以及配置成检测第一辐射部分的强度的第一光电检测器。

公开(公告)号：US20100091278A1

公开(公告)日：2010-04-15

申请号：US12249156

申请日：2008-10-10

申请人： Xiaoyong Liu ,  John McKinley Poole ,  Yufeng Huang ,  Daniel M. Stearns ,  Michael J. Gambuzza ,  Gene Smith Berkowitz ,  Anthony Kowal ,  Hejie Li ,  Shawn D. Wehe

发明人： Xiaoyong Liu ,  John McKinley Poole ,  Yufeng Huang ,  Daniel M. Stearns ,  Michael J. Gambuzza ,  Gene Smith Berkowitz ,  Anthony Kowal ,  Hejie Li ,  Shawn D. Wehe

IPC分类号： G01N21/31

CPC分类号： G01J3/4338 ,  G01N21/274 ,  G01N21/39 ,  G01N2021/399

摘要： In one embodiment of the spectroscopy method, the method comprises the steps of modulating the wavelength of a monochromatic radiation at a modulation amplitude and a modulation frequency; determining a first variable representative of an absorbance of an analyte in a sample; and demodulating by phase-sensitive detection the first variable at a harmonic of the modulation frequency to produce a harmonic spectrum of the analyte. In one embodiment of the spectroscopy apparatus, the apparatus comprises a laser diode integrated with a first photodetector configured to detect an intensity of a backward emission from the laser diode and act as a reference detector; a second photodetector configured to detect an intensity of laser radiation exiting a sample; and electronic circuitry coupled to the laser diode and the photodetectors, configured to acquire and process spectra of the sample. In another embodiment, the spectroscopy apparatus comprises a beam splitter configured to split the laser radiation into a first radiation portion and a second radiation portion and a first photodetector configured to detect the intensity of the first radiation portion.

摘要翻译： 在光谱方法的一个实施例中，该方法包括以调制幅度和调制频率调制单色辐射的波长的步骤; 确定代表样品中分析物的吸光度的第一变量; 并通过相位敏感检测对调制频率的谐波处的第一变量进行解调，以产生分析物的谐波谱。 在光谱设备的一个实施例中，该装置包括与第一光电检测器集成的激光二极管，其被配置为检测来自激光二极管的反向发射的强度并用作参考检测器; 第二光电检测器，被配置为检测离开样品的激光辐射的强度; 以及耦合到所述激光二极管和所述光电检测器的电子电路，被配置为获取和处理所述样品的光谱。 在另一个实施例中，光谱设备包括分束器，其配置成将激光辐射分裂成第一辐射部分和第二辐射部分，以及配置成检测第一辐射部分的强度的第一光电检测器。

公开(公告)号：US20110181877A1

公开(公告)日：2011-07-28

申请号：US13083704

申请日：2011-04-11

申请人： Xiaoyong Liu ,  Yufeng Huang ,  John McKinley Poole ,  Gene Smith Berkowitz ,  Anthony Kowal ,  Shawn D. Wehe ,  Hejie Li

发明人： Xiaoyong Liu ,  Yufeng Huang ,  John McKinley Poole ,  Gene Smith Berkowitz ,  Anthony Kowal ,  Shawn D. Wehe ,  Hejie Li

IPC分类号： G01J3/28

CPC分类号： G01J3/4338

摘要： Several methods of calibrating a wavelength-modulation spectroscopy apparatus configured to measure a concentration of an analyte in a sample gas are disclosed. Each of the methods allows for calibration and recalibration using a relatively safe gas regardless of whether the sample gas for which the concentration of the analyte can be determined is a hazardous gas. In one embodiment of the invention, calibration that is sample-gas specific is, accomplished by determining a first slope coefficient and calibration function for the sample gas, after which a scaling factor can be determined based on the first slope coefficient and a second slope coefficient for the same or a different sample gas and used in a subsequent calibration (or recalibration) to scale the calibration function. In other embodiments of the invention, calibration that is not sample-gas specific is accomplished to allow for the determination of the analyte concentration in variable gas compositions and constant gas compositions.

摘要翻译： 公开了一种校准配置成测量样品气体中分析物的浓度的波长调制光谱仪的几种方法。 每种方法允许使用相对安全的气体进行校准和重新校准，而不管可以确定分析物浓度的样品气体是否是有害气体。 在本发明的一个实施例中，通过确定样品气体的第一斜率系数和校准函数来实现样品气体特异性的校准，之后可以基于第一斜率系数和第二斜率系数确定比例因子 用于相同或不同的样品气体，并用于随后的校准（或重新校准）以缩放校准功能。 在本发明的其它实施方案中，完成不是采样气体特异性的校准，以允许确定可变气体组成和恒定气体组成中的分析物浓度。