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公开(公告)号:US07303602B2
公开(公告)日:2007-12-04
申请号:US10987173
申请日:2004-11-12
CPC分类号: F01N3/0222 , B01D53/944 , B01D2258/012 , B01D2259/806 , F01N3/028 , F01N9/002 , F01N2330/02 , F01N2330/06 , Y02T10/47 , Y10S55/10 , Y10S55/30
摘要: A diesel particulate filter including a microwave-absorbing target within a waveguide cavity. The cavity accepts microwave-frequency electromagnetic radiation through input couplers 90 degrees out of phase with each other to excite circular polarization heating modes. Through excitation of circularly polarized modes, heating patterns are time-averaged azimuthally to smooth out the hot and cold spots, thereby providing greater uniformity relative to heating patterns for corresponding linearly polarized modes.
摘要翻译: 一种在波导腔内包括微波吸收靶的柴油微粒过滤器。 空腔通过彼此相差90度的输入耦合器接收微波频率电磁辐射,以激发圆偏振加热模式。 通过圆偏振模式的激发,加热图案被方位角时间平滑以平滑热点和冷点,从而相对于对应线性偏振模式的加热图案提供更大的均匀性。
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公开(公告)号:US07263136B2
公开(公告)日:2007-08-28
申请号:US10620792
申请日:2003-07-14
申请人: Daniel J. Gregoire
发明人: Daniel J. Gregoire
CPC分类号: H03F1/3294 , H03F1/3247 , H04L27/368
摘要: A device for predistorting a digital symbol for modulating an RF signal includes a multi-bit buffer connected to an input serial bit stream and providing a parallel bit stream from the input serial bit stream; and a processing module connected to the input parallel bit stream. The processing module converts data bits of the input parallel bit stream into an input digital symbol and inputs a set of gain adjustments and phase adjustments that compensate for a channel distortion. The processing module decides which of the set of gain and phase adjustments to apply depending on a magnitude of the input digital symbol, applies a gain adjustment and a phase adjustment, from the set of gain and phase adjustments, to the input digital symbol to produce a predistorted symbol, and outputs quadrature components of the predistorted symbol to a quadrature modulator.
摘要翻译: 用于预失真数字符号以调制RF信号的装置包括连接到输入串行比特流并从输入串行比特流提供并行比特流的多比特缓冲器; 以及连接到输入并行比特流的处理模块。 处理模块将输入并行位流的数据位转换为输入数字符号,并输入补偿信道失真的一组增益调整和相位调整。 处理模块根据输入数字符号的大小决定要应用的一组增益和相位调整中的哪一个,将增益调整和相位调整从增益和相位调整组中施加到输入数字符号以产生 预失真符号,并将预失真符号的正交分量输出到正交调制器。
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公开(公告)号:US06652763B1
公开(公告)日:2003-11-25
申请号:US09541178
申请日:2000-04-03
申请人: Ronghua Wei , Daniel J. Gregoire
发明人: Ronghua Wei , Daniel J. Gregoire
IPC分类号: B44C122
CPC分类号: H01J37/32688 , C30B29/04 , C30B33/00 , H01J37/32623 , H01J2237/336
摘要: A method and apparatus for the polishing of diamond surfaces, wherein the diamond surface is subjected to plasma-enhanced chemical etching using an atomic oxygen polishing plasma source, are disclosed. In the apparatus, a magnetic filter passes a plume of high-density, low-energy, atomic oxygen plasma. The plasma is capable of uniformly polishing diamond surfaces.
摘要翻译: 公开了一种用于抛光金刚石表面的方法和设备,其中使用原子氧抛光等离子体源对金刚石表面进行等离子体增强化学蚀刻。 在该装置中,磁性过滤器通过高密度,低能量的原子氧等离子体的羽流。 等离子体能够均匀抛光金刚石表面。
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公开(公告)号:US5732603A
公开(公告)日:1998-03-31
申请号:US612711
申请日:1996-03-08
IPC分类号: F16F15/12 , F16F15/133 , F16F15/30 , F16F15/315 , G05G1/00 , F16F15/10
CPC分类号: F16F15/315 , Y10T74/2132
摘要: A flywheel hub includes an annular hoop and a pair of compliant diaphragms which are connected by the hoop. The diaphragms have apertures to receive a flywheel shaft and the hoop is sized to receive an annular rim. The diaphragms achieve their compliance principally with a serpentine, radial cross section. The hub is preferably realized with fiber and matrix composites. Because the compliant hub tends to match radial expansions of adjoining flywheel components, joint integrity between components is enhanced. In addition, the hub permits the rim to position its center of mass on the rotational axis to reduce rim vibrations. Axial spacing of the diaphragms provides moment stiffness to limit and control the rim deflection caused by, for example, gyroscopic precession forces.
摘要翻译: 飞轮轮毂包括环形箍和一对柔性隔膜,它们通过环箍连接。 隔膜具有孔以接收飞轮轴,并且环的尺寸被设计成接收环形边缘。 隔膜主要实现蛇形,径向截面。 轮毂优选用纤维和基质复合材料实现。 因为顺应性集线器倾向于匹配相邻飞轮部件的径向扩展,所以部件之间的连接完整性增强。 此外,轮毂允许轮辋将其质心定位在旋转轴线上以减少轮辋振动。 隔膜的轴向间距提供力矩刚度以限制和控制由例如陀螺进动力引起的边缘偏转。
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公开(公告)号:US5695584A
公开(公告)日:1997-12-09
申请号:US533155
申请日:1995-09-26
申请人: Daniel J. Gregoire
发明人: Daniel J. Gregoire
IPC分类号: F16F15/305 , B65H81/00
CPC分类号: F16F15/305 , Y02E60/16 , Y10T74/212
摘要: A high-speed flywheel includes a composite rim supported for rotation about a central axis which is perpendicular to the plane of the rim. The rim includes at least a pair of rim portions or regions of differing elastic modulus in the circumferential direction of the material forming the rim. Moreover, a radially outer portion of the rim has a higher elastic modulus in the circumferential direction, while a radially inner portion of the rim has a lower elastic modulus in the circumferential direction. This variation of circumferential elastic modulus is achieved by a selected radial variation of the angle of the fiber reinforcement material relative to the circumferential direction of the rim. A result is that the radially inner portion of the rim transfers radial force to the outer portion, with a resulting lower radial stress in the radially inner portion of the flywheel rim. An improved speed of operation and greater energy storage for the flywheel is achieved.
摘要翻译: 高速飞轮包括支撑成围绕垂直于轮辋平面的中心轴线旋转的复合轮辋。 轮缘包括至少一对边缘部分或在形成轮辋的材料的圆周方向上具有不同弹性模量的区域。 此外,轮辋的径向外侧部分在圆周方向上具有较高的弹性模量,而轮辋的径向内部在圆周方向上具有较低的弹性模量。 周向弹性模量的这种变化通过纤维增强材料相对于轮辋周向的角度的选定的径向变化来实现。 结果是,轮辋的径向内部部分将径向力转移到外部部分,从而在飞轮轮辋的径向内部部分产生较低的径向应力。 实现飞轮的提高的操作速度和更大的能量存储。
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