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    • 2. 发明授权
    • 3-dimensional imaging by acoustic warping and defocusing
    • 通过声学翘曲和散焦三维成像
    • US08169621B2
    • 2012-05-01
    • US12729100
    • 2010-03-22
    • Morteza GharibJoshua Adams
    • Morteza GharibJoshua Adams
    • G01B11/24
    • G01S15/8993G01N29/06G01N2291/106G01S7/52026G01S7/5205G01S15/8977
    • The present invention relates to a system for three-dimensional (3-D) acoustic imaging of a scattering structure using information from a two-dimensional (2-D) image. The system uses a characterized sensor array to emit a signal from the sensor array into an object of interest to generate at least one 2-D representation of the object of interest. The 2-D representation comprises a plurality of x and y coordinate pairs and at least one candidate scattering structure. The candidate scattering structure comprises a shape defined by at least one pair of x and y coordinates. The candidate scattering structure shape is restricted to at least one pair of x and y coordinates. The pair of x and y coordinates of the candidate scattering structure shape are then compared with a first coordinate-dependent response function to assign an x, y, and z position of a scattering structure in 3-D space.
    • 本发明涉及使用来自二维(2-D)图像的信息的散射结构的三维(3-D)声学成像系统。 该系统使用表征的传感器阵列将来自传感器阵列的信号发射到感兴趣的对象中,以产生感兴趣对象的至少一个2-D表示。 2-D表示包括多个x和y坐标对以及至少一个候选散射结构。 候选散射结构包括由至少一对x和y坐标定义的形状。 候选散射结构形状被限制为至少一对x和y坐标。 然后将候选散射结构形状的一对x和y坐标与第一坐标依赖响应函数进行比较,以在3-D空间中分配散射结构的x,y和z位置。
    • 5. 发明申请
    • APPARATUS AND METHODS FOR MONITORING A TOOTH
    • 用于监测牙齿的装置和方法
    • US20100143861A1
    • 2010-06-10
    • US12524554
    • 2008-01-25
    • Morteza GharibJoshua AdamsBjarne BergheimAdam E. Piotrowski
    • Morteza GharibJoshua AdamsBjarne BergheimAdam E. Piotrowski
    • A61C15/02
    • A61B5/4547A61B5/113A61B8/08A61C5/40A61C19/04A61C19/042
    • Apparatus and methods for monitoring a tooth may include sensing acoustic energy propagating from regions (such as a root canal system) in and/or near a tooth. The apparatus and methods may be used with root canal cleaning treatments to determine the efficacy of the treatment and/or to reduce risk of post-treatment complications. An acoustic source (e.g., an acoustic transducer and/or a high-speed liquid jet) may be used to transmit energy into a tooth and/or regions near a tooth. An acoustic receiver may be used to detect acoustic signatures of acoustic events (e.g., acoustic echoes and/or acoustic cavitation) occurring in the tooth. The acoustic signatures may be used, for example, to determine the progress of a root canal cleaning treatment and/or the presence or movement of material toward a periapical region of the tooth. Apparatus and methods for monitoring a tooth may include detecting impact of a first jet on a tooth and actuating a second jet in response to detection of the impact.
    • 用于监测牙齿的装置和方法可以包括感测从牙齿内和/或附近的区域(例如根管系统)传播的声能。 该设备和方法可用于根管清洁处理以确定治疗的功效和/或降低治疗后并发症的风险。 可以使用声源(例如,声换能器和/或高速液体射流)将能量传递到齿和/或牙齿附近的区域。 声学接收器可用于检测出现在牙齿中的声学事件(例如,声学回声和/或声空泡)的声学特征。 声学特征可以用于例如确定根管清洁治疗的进展和/或材料向牙根尖周区域的存在或移动。 用于监测牙齿的装置和方法可以包括检测第一射流对牙齿的影响并响应于冲击的检测而致动第二射流。
    • 7. 发明申请
    • FAST ACTING AIRCRAFT ENGINE BLEED AIR CHECK VALVE
    • 快速起动飞机发动机BLEED空气检查阀
    • US20090320495A1
    • 2009-12-31
    • US11741001
    • 2007-04-27
    • James ElderJoshua Adams
    • James ElderJoshua Adams
    • F02C6/04F16K15/00
    • F16K15/038F01D17/105F05D2260/606F05D2270/101Y10T137/7898
    • An engine air supply system includes an air source, which is a gas turbine engine in one example. A component, such as an environmental control system component, is interconnected to the air source by a conduit that includes a supply flow direction. A check valve is arranged in the conduit. The check valve includes a valve portion moveable in the supply flow direction from a closed position to an open position. The closed position is arranged at an acute angle relative to the supply flow direction. The check valve includes first and second valve portions that are hemi-elliptical in shape. The first and second valve portions are non-planar and arranged approximately 90 degrees apart when in the closed position. The first and second valve portions move toward one another from the closed position to the open position. Each of the first and second valve portions moves approximately 30-40 degrees from the open position to the closed position in response to a stall condition, which significantly reduces the response time and forces generated by the first and second valve portions when closing.
    • 发动机空气供给系统在一个示例中包括作为燃气涡轮发动机的空气源。 诸如环境控制系统部件的部件通过包括供给流动方向的导管与空气源相互连接。 导管中设有止回阀。 止回阀包括可在供给流动方向上从关闭位置移动到打开位置的阀部分。 关闭位置相对于供给流动方向设置成锐角。 止回阀包括半椭圆形的第一和第二阀部分。 当处于关闭位置时,第一和第二阀部分是非平面的并且分布大约90度。 第一和第二阀部分从关闭位置向打开位置彼此移动。 响应于失速状态,第一和第二阀部分中的每一个从打开位置移动大约30-40度到关闭位置,这显着地减小了响应时间和关闭时由第一和第二阀部分产生的力。