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公开(公告)号:US20100102811A1
公开(公告)日:2010-04-29
申请号:US11917639
申请日:2006-06-16
CPC分类号: G01R33/4833 , G01N24/084 , G01R33/3808 , G01R33/445 , G01R33/485 , G01R33/56563
摘要: A method for locally creating effectively homogeneous or “clean” magnetic field gradients (of high uniformity) for imaging (with NMR, MRI, or spectroscopic MRI) both in in-situ and ex-situ systems with high degrees of inhomogeneous field strength. The method of imaging comprises: a) providing a functional approximation of an inhomogeneous static magnetic field strength B0 (r) at a spatial position r; b) providing a temporal functional approximation of Gshim(t) with i basis functions and j variables for each basis function, resulting in vij variables; c) providing a measured value Ω, which is an temporally accumulated dephasing due to the inhomogeneities of B0 (r); and d) minimizing a difference in the local dephasing angle (I) by varying the vij variables to form a set of minimized vij variables. The method requires calibration of the static fields prior to minimization, but may thereafter he implemented without such calibration, may he used in open or closed systems, and potentially portable systems.
摘要翻译: 在具有高度不均匀场强的原位和非原位系统中,用于局部创建有效均匀或“清洁”磁场梯度(高均匀度))用于成像(使用NMR,MRI或光谱MRI)的方法。 成像方法包括:a)在空间位置r处提供非均匀静态磁场强度B0(r)的函数近似值; b)提供Gshim(t)的时间函数近似与i基函数和每个基函数的j变量,导致vij变量; c)提供由于B0(r)的不均匀性而导致的时间累积去相位的测量值& 以及d)通过改变vij变量来最小化局部相移角(I)的差异以形成一组最小化的vij变量。 该方法需要在最小化之前对静态场进行校准,然后可以在不进行这种校准的情况下进行实施,可以在开放或封闭的系统以及潜在的便携式系统中使用。
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公开(公告)号:US08614575B2
公开(公告)日:2013-12-24
申请号:US11917639
申请日:2006-06-16
IPC分类号: G01V3/00
CPC分类号: G01R33/4833 , G01N24/084 , G01R33/3808 , G01R33/445 , G01R33/485 , G01R33/56563
摘要: A method for locally creating effectively homogeneous or “clean” magnetic field gradients (of high uniformity) for imaging (with NMR, MRI, or spectroscopic MRI) both in in-situ and ex-situ systems with high degrees of inhomogeneous field strength. The method of imaging comprises: a) providing a functional approximation of an inhomogeneous static magnetic field strength B0({right arrow over (r)}) at a spatial position {right arrow over (r)}; b) providing a temporal functional approximation of {right arrow over (G)}shim(t) with i basis functions and j variables for each basis function, resulting in vij variables; c) providing a measured value Ω, which is an temporally accumulated dephasing due to the inhomogeneities of B0({right arrow over (r)}); and d) minimizing a difference in the local dephasing angle φ({right arrow over (r)},t)=γ∫0t√{square root over (|{right arrow over (B)}1({right arrow over (r)},t′)|2+({right arrow over (r)}·{right arrow over (G)}shimGshim(t′)+∥{right arrow over (B)}0({right arrow over (r)})∥Δω({right arrow over (r)},t′)/γ)2)}dt′−Ω by varying the vij variables to form a set of minimized vij variables. The method requires calibration of the static fields prior to minimization, but may thereafter be implemented without such calibration, may be used in open or closed systems, and potentially portable systems.
摘要翻译: 在具有高度不均匀场强的原位和非原位系统中,用于局部创建有效均匀或“清洁”磁场梯度(高均匀度))用于成像(使用NMR,MRI或光谱MRI)的方法。 成像方法包括:a)在空间位置((r)}上的右箭头)提供非均匀静态磁场强度B0({右箭头(r)})的函数近似值; b)给出每个基函数的i个基函数和j个变量的{right arrow over(G)} shim(t)的时间函数近似,导致vij变量; c)提供测量值Ω,由于B0的不均匀性({右箭头((r)}))是时间上累积的去相位。 并且d)最小化局部相移角phi({right arrow over(r)},(t))上的差异,t)=γ∫0t√{平方根超过(| {右箭头(B)} 1({ r(t))| 2 +({right arrow over(r)}·{右箭头(G)} shimGshim(t')+∥{右箭头(B)} 0({ r)})∥Deltaomega({right arrow over(r)},t')/ gamma)2)} dt'-Omega,通过改变vij变量形成一组最小化的vij变量。 该方法需要在最小化之前对静态场进行校准,然后可以在没有这种校准的情况下实现,可以在开放或封闭系统以及潜在的便携式系统中使用。
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公开(公告)号:US5609248A
公开(公告)日:1997-03-11
申请号:US450470
申请日:1995-04-20
申请人: John Rohrbough , John Franck
发明人: John Rohrbough , John Franck
CPC分类号: B65D5/48 , A61B2050/0056 , A61B50/30
摘要: A package is disclosed that enables packaging of associated items in a single pack. Typical of the items to be packaged are pharmaceutical drugs and associated drug delivery apparatus. The package (1) includes a main container or first compartment (10) adapted to contain a first one of the items e.g. drug delivery apparatus and a support or second compartment (11) adapted to releasably hold a subsidiary container to contain the second of the items e.g. vial or similar container. The subsidiary container may take the form of a sleeve or box retained with the second compartment.
摘要翻译: 公开了一种能够将相关物品包装在单个包装中的包装。 典型的待包装物品是药物和相关的药物输送装置。 包装(1)包括主容器或第一隔室(10),适于容纳第一个物品。 药物输送装置和适于可释放地容纳辅助容器以容纳第二项目的支撑件或第二隔室(11),例如, 小瓶或类似容器。 辅助容器可以采取与第二隔间保持的套筒或盒子的形式。
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公开(公告)号:US20050045110A1
公开(公告)日:2005-03-03
申请号:US10641396
申请日:2003-08-13
申请人: John Franck
发明人: John Franck
IPC分类号: A01K5/01 , A01K39/012 , A01K61/02
CPC分类号: A01K39/012 , A01K5/0114
摘要: A container that selectively dispenses items contained therein. The container includes a body that includes two opposing openings and a removable dispensing tray that may be coupled with the body with a snap-in-coupling. The tray includes two opposing openings also. When the body is coupled to the tray, the body and tray may rotate relative to one another such that the openings may be aligned to an open position so that items may move from the body to the tray. The openings may be misaligned to a closed position so that items are prevented from moving from the body to the tray. The container and tray combination are especially suitable for a disposable bird feeder.
摘要翻译: 选择性地分配其中所含物品的容器。 容器包括主体,其包括两个相对的开口和可拆卸的分配托盘,其可以与卡扣联接件与主体联接。 托盘还包括两个相对的开口。 当主体联接到托盘时,主体和托盘可以相对于彼此旋转,使得开口可以对齐到打开位置,使得物品可以从主体移动到托盘。 开口可能不对准到关闭位置,从而防止物品从主体移动到托盘。 容器和托盘组合特别适用于一次性喂鸟器。
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