公开(公告)号：US08389943B2

公开(公告)日：2013-03-05

申请号：US12568339

申请日：2009-09-28

申请人： Derek W. Austin ,  Mu Chen ,  Bing Feng ,  Robert A. Mintzer ,  Anne M. Smith

发明人： Derek W. Austin ,  Mu Chen ,  Bing Feng ,  Robert A. Mintzer ,  Anne M. Smith

IPC分类号： G01T1/166 ,  G01T1/00

CPC分类号： G06T11/006 ,  G06T2211/424 ,  G21K2207/00

摘要： A system and method for reconstructing single photon emission computed tomography data acquired with a pinhole collimator includes sub-dividing each voxel in the imaging target object space into sub-voxels and sub-dividing each of the detector bins in the gamma camera detector into sub-bins, connecting the centers of each of the sub-voxels to each of the detector sub-bins through a pinhole provided in the pinhole collimator by ray tracing and for each ray connecting the centers of each of the sub-voxels to each of the detector sub-bins, the transmission probability is calculated by analytically solving the intersections between the ray and the pinhole surfaces. Then, a geometric-response-function of the pinhole collimator is computed which is then convolved with the intrinsic-response-function of the detector to obtain the PSF.

摘要翻译： 用于重构用针孔准直器获取的单光子发射计算机断层摄影数据的系统和方法包括将成像目标对象空间中的每个体素划分成子体素，并且将伽马相机检测器中的每个检测器区块分割成子像素， 将每个子体素的中心连接到每个检测器子箱中，通过通过光线跟踪设置在针孔准直器中的针孔，以及将每个子体素的中心连接到每个检测器的每个射线 通过解析光线和针孔表面之间的交点来计算传输概率。 然后，计算针孔准直仪的几何响应函数，然后将其与检测器的内在响应函数进行卷积以获得PSF。

公开(公告)号：US20100080339A1

公开(公告)日：2010-04-01

申请号：US12568339

申请日：2009-09-28

申请人： Derek W. Austin ,  Mu Chen ,  Bing Feng ,  Robert A. Mintzer ,  Anne Smith

发明人： Derek W. Austin ,  Mu Chen ,  Bing Feng ,  Robert A. Mintzer ,  Anne Smith

IPC分类号： G06T1/00 ,  G06K9/00 ,  H05G1/60

CPC分类号： G06T11/006 ,  G06T2211/424 ,  G21K2207/00

摘要： A system and method for reconstructing single photon emission computed tomography data acquired with a pinhole collimator includes sub-dividing each voxel in the imaging target object space into sub-voxels and sub-dividing each of the detector bins in the gamma camera detector into sub-bins, connecting the centers of each of the sub-voxels to each of the detector sub-bins through a pinhole provided in the pinhole collimator by ray tracing and for each ray connecting the centers of each of the sub-voxels to each of the detector sub-bins, the transmission probability is calculated by analytically solving the intersections between the ray and the pinhole surfaces. Then, a geometric-response-function of the pinhole collimator is computed which is then convolved with the intrinsic-response-function of the detector to obtain the PSF.

摘要翻译： 用于重构用针孔准直器获取的单光子发射计算机断层摄影数据的系统和方法包括将成像目标对象空间中的每个体素划分成子体素，并且将伽马相机检测器中的每个检测器区块分割成子像素， 将每个子体素的中心连接到每个检测器子箱中，通过通过光线跟踪设置在针孔准直器中的针孔，以及将每个子体素的中心连接到每个检测器的每个射线 通过解析光线和针孔表面之间的交点来计算传输概率。 然后，计算针孔准直仪的几何响应函数，然后将其与检测器的内在响应函数进行卷积以获得PSF。

公开(公告)号：US07675037B2

公开(公告)日：2010-03-09

申请号：US11964363

申请日：2007-12-26

申请人： Yuanjing Li ,  Bing Feng ,  Ziran Zhao ,  Yingxin Wang ,  Dongmei Yu

发明人： Yuanjing Li ,  Bing Feng ,  Ziran Zhao ,  Yingxin Wang ,  Dongmei Yu

IPC分类号： G01J5/02

CPC分类号： G01J3/42 ,  G01J3/4531 ,  G01N21/3586

摘要： A method and an apparatus for measuring terahertz time-domain spectrum, which relate to the field of terahertz time-domain spectrum. The method comprises the steps of: generating a first pulse laser beam from a first femtosecond laser device at a preset repetition frequency to generate THz pulses; generating a second pulse laser beam from a second femtosecond laser device at the repetition frequency; measuring electric field intensities of the THz pulses at respective phase differences between the first pulse laser beam and the second pulse laser beam; and obtaining a THz time-domain spectroscopy by performing Fourier transformation of data representative of the electric field intensities. THz spectrum measured according to the method and apparatus improves spectroscopy resolution and provides a broader detection range.

摘要翻译： 一种用于测量太赫兹时域光谱的方法和装置，涉及太赫兹时域光谱领域。 该方法包括以下步骤：以预设的重复频率从第一飞秒激光装置产生第一脉冲激光束以产生THz脉冲; 以重复频率从第二飞秒激光装置产生第二脉冲激光束; 在第一脉冲激光束和第二脉冲激光束之间的相位差测量THz脉冲的电场强度; 并且通过对代表电场强度的数据进行傅里叶变换来获得THz时域光谱。 根据方法和装置测量的太赫兹光谱提高了光谱分辨率，并提供了更广泛的检测范围。

公开(公告)号：US20130149235A1

公开(公告)日：2013-06-13

申请号：US13713490

申请日：2012-12-13

申请人： Baojian Shen ,  Jing Li ,  Xiaohua Wang ,  Wencheng Zhang ,  Qiaoxia Guo ,  Bojun Shen ,  Bing Feng ,  Guangming Wen ,  Zhihua Zhang ,  Ran Tian

发明人： Baojian Shen ,  Jing Li ,  Xiaohua Wang ,  Wencheng Zhang ,  Qiaoxia Guo ,  Bojun Shen ,  Bing Feng ,  Guangming Wen ,  Zhihua Zhang ,  Ran Tian

IPC分类号： B01J32/00

CPC分类号： C01B39/085 ,  B01J29/89 ,  B01J32/00 ,  B01J35/002

摘要： The present invention relates to a synthesis method for ETS-10 titanosilicate molecular sieves. The method comprises the steps of mixing a titanium oxide hydrosol, a silicon source, a sodium hydroxide, a fluorine-containing mineralizer and a water to give a gel and adjusting the pH thereof to 10.4 to 10.8; and hydrothermal crystallizing the gel at 170 to 250° C. for 10 to 100 hours to obtain the ETS-10 titanosilicate molecular sieves. In the synthesis method for ETS-10 titanosilicate molecular sieves provided by the present invention, a titanium oxide hydrosol is used as the titanium source to synthesize the ETS-10 titanosilicate molecular sieves, and the problem that conventional soluble titanium salt-based titanium sources tend to hydrolyze and the problem of poor dispersibility for the titanium source system of insoluble titanium oxide are therefore prevented. The ETS-10 titanosilicate molecular sieves synthesized has high purity and high crystallinity.

摘要翻译： 本发明涉及一种用于ETS-10钛硅酸盐分子筛的合成方法。 该方法包括以下步骤：将氧化钛水溶胶，硅源，氢氧化钠，含氟矿化剂和水混合，得到凝胶并将其pH调节至10.4至10.8; 并将该凝胶在170〜250℃水热结晶10〜100小时，得到ETS-10钛硅酸盐分子筛。 在本发明提供的ETS-10钛硅酸盐分子筛的合成方法中，使用钛氧化物水溶胶作为钛源来合成ETS-10钛硅酸盐分子筛，以及常规可溶性钛盐基钛源倾向于 从而可以防止水解不溶性氧化钛的钛源体系的分散性差的问题。 合成的ETS-10钛硅酸盐分子筛具有高纯度和高结晶度。

公开(公告)号：US20080165364A1

公开(公告)日：2008-07-10

申请号：US11966057

申请日：2007-12-28

申请人： Ziran Zhao ,  Zhiqiang Chen ,  Yingxin Wang ,  Bing Feng ,  Li Zhang ,  Zhuoyan Liu ,  Yinpeng Liang

发明人： Ziran Zhao ,  Zhiqiang Chen ,  Yingxin Wang ,  Bing Feng ,  Li Zhang ,  Zhuoyan Liu ,  Yinpeng Liang

IPC分类号： G01B9/02 ,  G01N21/41

CPC分类号： G01N21/3586 ,  G01N21/3577 ,  G01N2201/1293

摘要： The present invention relates to a method for assessing the purity of vegetable oils by means of THz time-domain spectroscopy, comprising the steps of: measuring the THz time-domain spectra of standard vegetable oils to establish a spectral database; measuring the THz time-domain spectrum of vegetable oil to be detected; analyzing the purity of the detected vegetable oil based on the pre-built database. The present invention also relates to an apparatus for assessing purity of vegetable oil by means of THz time-domain spectroscopy, comprising: spectrum measuring device for measuring time-domain waveforms of THz pulses before and after transmitting the vegetable oil held in a container by transmission approach, or directly measuring time-domain waveforms of THz pulses before and after reflecting from the vegetable oil by reflection approach; and data processing device for extracting physical parameters of the vegetable oil in THz region according to the time-domain waveforms. Compared with the prior art, the method according to the present invention is easy, rapid and quantitative.

摘要翻译： 本发明涉及通过THz时域光谱法评估植物油的纯度的方法，包括以下步骤：测量标准植物油的THz时域谱以建立光谱数据库; 测量要检测的植物油的THz时域谱; 基于预建的数据库分析检测出的植物油的纯度。 本发明还涉及通过太赫兹时域光谱法评价植物油的纯度的装置，其特征在于，包括：频谱测量装置，用于测量传输通过传输方式容纳在容器中的植物油之前和之后的THz脉冲的时域波形 或通过反射方法直接测量从植物油反射之前和之后的太赫兹脉冲的时域波形; 以及根据时域波形提取太赫兹区植物油物理参数的数据处理装置。 与现有技术相比，根据本发明的方法容易，快速和定量。

公开(公告)号：US20100272339A1

公开(公告)日：2010-10-28

申请号：US12767414

申请日：2010-04-26

申请人： Bing Feng

发明人： Bing Feng

IPC分类号： G06K9/00

CPC分类号： G06T11/006 ,  G06T11/003 ,  G06T2211/424 ,  G06T2211/436

摘要： A system and method is provided for reconstructing single photon emission computed tomography data acquired with a pinhole collimator without pre-knowledge of 3D coordinates of point source markers. The system and method include reiteratively applying a downhill simplex process to determine a first parameter and a second parameter, keeping a lowest vertex from a previous iteration, randomly resetting starting values for rest vertexes for a current iteration, wherein the lowest vertex is prevented from performing a last iteration, determining whether at least one of a first threshold and a second threshold has been reached, wherein the first threshold comprises a cost function value and the second threshold comprises a predetermined number of iterations of the downhill simplex process, acquiring projection data from the first parameter, determining locations of 2D data from the projection data of the first parameter; and estimating the second parameter by fitting the forward projected data locations to the measured data locations.

摘要翻译： 提供了一种用于重建用针孔准直仪获取的单光子发射计算机断层摄影数据的系统和方法，而没有对点源标记的3D坐标的预先知识。 该系统和方法包括重复地应用下坡单工过程以确定第一参数和第二参数，保持来自先前迭代的最低顶点，随机地重置用于当前迭代的休息顶点的起始值，其中防止最低顶点执行 确定是否已经达到了第一阈值和第二阈值中的至少一个的最后一次迭代，其中所述第一阈值包括成本函数值，并且所述第二阈值包括所述下坡单工过程的预定次数的迭代，从 第一参数，根据第一参数的投影数据确定2D数据的位置; 以及通过将前向投影数据位置拟合到测量数据位置来估计第二参数。

公开(公告)号：US07652769B2

公开(公告)日：2010-01-26

申请号：US11966057

申请日：2007-12-28

申请人： Ziran Zhao ,  Zhiqiang Chen ,  Yingxin Wang ,  Bing Feng ,  Li Zhang ,  Zhuoyan Liu ,  Yinpeng Liang

发明人： Ziran Zhao ,  Zhiqiang Chen ,  Yingxin Wang ,  Bing Feng ,  Li Zhang ,  Zhuoyan Liu ,  Yinpeng Liang

IPC分类号： G01B9/02 ,  G01J3/45

CPC分类号： G01N21/3586 ,  G01N21/3577 ,  G01N2201/1293

摘要： The present invention relates to a method for assessing the purity of vegetable oils by means of THz time-domain spectroscopy, comprising the steps of: measuring the THz time-domain spectra of standard vegetable oils to establish a spectral database; measuring the THz time-domain spectrum of vegetable oil to be detected; analyzing the purity of the detected vegetable oil based on the pre-built database. The present invention also relates to an apparatus for assessing purity of vegetable oil by means of THz time-domain spectroscopy, comprising: spectrum measuring device for measuring time-domain waveforms of THz pulses before and after transmitting the vegetable oil held in a container by transmission approach, or directly measuring time-domain waveforms of THz pulses before and after reflecting from the vegetable oil by reflection approach; and data processing device for extracting physical parameters of the vegetable oil in THz region according to the time-domain waveforms. Compared with the prior art, the method according to the present invention is easy, rapid and quantitative.

摘要翻译： 本发明涉及通过THz时域光谱法评估植物油的纯度的方法，包括以下步骤：测量标准植物油的THz时域谱以建立光谱数据库; 测量要检测的植物油的THz时域谱; 基于预建的数据库分析检测出的植物油的纯度。 本发明还涉及通过太赫兹时域光谱法评价植物油的纯度的装置，其特征在于，包括：频谱测量装置，用于测量传输通过传输方式容纳在容器中的植物油之前和之后的THz脉冲的时域波形 或通过反射方法直接测量从植物油反射之前和之后的太赫兹脉冲的时域波形; 以及根据时域波形提取太赫兹区植物油物理参数的数据处理装置。 与现有技术相比，根据本发明的方法容易，快速和定量。

公开(公告)号：US20080157750A1

公开(公告)日：2008-07-03

申请号：US11964363

申请日：2007-12-26

申请人： Yuanjing LI ,  Bing Feng ,  Ziran Zhao ,  Yingxin Wang ,  Dongmei Yu

发明人： Yuanjing LI ,  Bing Feng ,  Ziran Zhao ,  Yingxin Wang ,  Dongmei Yu

IPC分类号： G01R23/16

CPC分类号： G01J3/42 ,  G01J3/4531 ,  G01N21/3586

摘要： Disclosed are a method and an apparatus for measuring terahertz time-domain spectrum, which relate to the field of terahertz time-domain spectrum. The method comprises the steps of: generating a first pulse laser beam from a first femtosecond laser device at a preset repetition frequency to generate THz pulses; generating a second pulse laser beam from a second femtosecond laser device at the repetition frequency; measuring electric field intensities of the THz pulses at respective phase differences between the first pulse laser beam and the second pulse laser beam; and obtaining a THz time-domain spectroscopy by performing Fourier transformation of data representative of the electric field intensities. Compared with prior art, THz spectrum measured according to the method and apparatus of present invention has higher spectroscopy resolution and broader detection range, which makes the technology of present invention have stronger capability for discriminating substances.

摘要翻译： 公开了一种用于测量太赫兹时域光谱的方法和装置，其涉及太赫兹时域光谱的领域。 该方法包括以下步骤：以预设的重复频率从第一飞秒激光装置产生第一脉冲激光束以产生THz脉冲; 以重复频率从第二飞秒激光装置产生第二脉冲激光束; 在第一脉冲激光束和第二脉冲激光束之间的相位差测量THz脉冲的电场强度; 并且通过对代表电场强度的数据进行傅里叶变换来获得THz时域光谱。 与现有技术相比，根据本发明的方法和装置测量的太赫兹光谱具有更高的光谱分辨率和更广泛的检测范围，这使得本发明的技术具有更强的辨别物质的能力。

公开(公告)号：US08411926B2

公开(公告)日：2013-04-02

申请号：US12767414

申请日：2010-04-26

申请人： Bing Feng

发明人： Bing Feng

IPC分类号： G06K9/00

CPC分类号： G06T11/006 ,  G06T11/003 ,  G06T2211/424 ,  G06T2211/436

摘要： A system and method is provided for reconstructing single photon emission computed tomography data acquired with a pinhole collimator without pre-knowledge of 3D coordinates of point source markers. The system and method include reiteratively applying a downhill simplex process to determine a first parameter and a second parameter, keeping a lowest vertex from a previous iteration, randomly resetting starting values for rest vertexes for a current iteration, wherein the lowest vertex is prevented from performing a last iteration, determining whether at least one of a first threshold and a second threshold has been reached, wherein the first threshold comprises a cost function value and the second threshold comprises a predetermined number of iterations of the downhill simplex process, acquiring projection data from the first parameter, determining locations of 2D data from the projection data of the first parameter; and estimating the second parameter by fitting the forward projected data locations to the measured data locations.

摘要翻译： 提供了一种用于重建用针孔准直仪获取的单光子发射计算机断层摄影数据的系统和方法，而没有对点源标记的3D坐标的预先知识。 该系统和方法包括重复地应用下坡单工过程以确定第一参数和第二参数，保持来自先前迭代的最低顶点，随机地重置用于当前迭代的休息顶点的起始值，其中防止最低顶点执行 确定是否已经达到了第一阈值和第二阈值中的至少一个的最后一次迭代，其中所述第一阈值包括成本函数值，并且所述第二阈值包括所述下坡单工过程的预定次数的迭代，从 第一参数，根据第一参数的投影数据确定2D数据的位置; 以及通过将前向投影数据位置拟合到测量数据位置来估计第二参数。