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公开(公告)号：US20120091632A1
公开(公告)日：2012-04-19
申请号：US13082133
申请日：2011-04-07
申请人： Wei Li , Hai Wang , Vipin Kumar , Thomas J. Matula
发明人： Wei Li , Hai Wang , Vipin Kumar , Thomas J. Matula
IPC分类号： B29C44/20
CPC分类号： C08J9/00 , B29C35/0261 , B29C44/3469
摘要： A selective high intensity ultrasonic foaming technique is described to fabricate porous polymers for biomedical applications. Process variables, including ultrasound power, scanning speed, and gas concentration have an affect on pore size. Pore size can be controlled with the scanning speed of the ultrasound insonation and interconnected porous structures could be obtained using a partially saturated polymers. A gas concentration range of 3-5% by weight creates interconnected open-celled porous structures. The selective high intensity ultrasonic foaming method can be used on biocompatible polymers so as not to introduce any organic solvents. The method has use in cell related biomedical applications such as studying cell growth behaviors by providing a porous environment with varying topological features.
摘要翻译： 描述了选择性高强度超声波发泡技术来制造用于生物医学应用的多孔聚合物。 过程变量，包括超声波功率，扫描速度和气体浓度都会影响孔径。 可以用超声波的扫描速度控制孔径，并且可以使用部分饱和的聚合物获得互连的多孔结构。 3-5重量％的气体浓度范围产生互连的开孔多孔结构。 选择性高强度超声波发泡法可用于生物相容性聚合物，以便不引入任何有机溶剂。 该方法可用于细胞相关的生物医学应用，例如通过提供具有不同拓扑特征的多孔环境来研究细胞生长行为。
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公开(公告)号：US08247464B2
公开(公告)日：2012-08-21
申请号：US13082133
申请日：2011-04-07
申请人： Wei Li , Hai Wang , Vipin Kumar , Thomas J. Matula
发明人： Wei Li , Hai Wang , Vipin Kumar , Thomas J. Matula
CPC分类号： C08J9/00 , B29C35/0261 , B29C44/3469
摘要： A selective high intensity ultrasonic foaming technique is described to fabricate porous polymers for biomedical applications. Process variables, including ultrasound power, scanning speed, and gas concentration have an affect on pore size. Pore size can be controlled with the scanning speed of the ultrasound insonation and interconnected porous structures could be obtained using a partially saturated polymers. A gas concentration range of 3-5% by weight creates interconnected open-celled porous structures. The selective high intensity ultrasonic foaming method can be used on biocompatible polymers so as not to introduce any organic solvents. The method has use in cell related biomedical applications such as studying cell growth behaviors by providing a porous environment with varying topological features.
摘要翻译： 描述了选择性高强度超声波发泡技术来制造用于生物医学应用的多孔聚合物。 过程变量，包括超声波功率，扫描速度和气体浓度都会影响孔径。 可以用超声波的扫描速度控制孔径，并且可以使用部分饱和的聚合物获得互连的多孔结构。 3-5重量％的气体浓度范围产生互连的开孔多孔结构。 选择性高强度超声波发泡方法可用于生物相容性聚合物，以便不引入任何有机溶剂。 该方法可用于细胞相关的生物医学应用，例如通过提供具有不同拓扑特征的多孔环境来研究细胞生长行为。
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公开(公告)号：US20080102478A1
公开(公告)日：2008-05-01
申请号：US11864698
申请日：2007-09-28
IPC分类号： G01N33/574 , C12M1/00 , G01N33/567
CPC分类号： B01L3/502753 , B01L3/5025 , B01L3/5027 , B01L2200/12 , B01L2300/0681 , B01L2300/069 , B01L2300/0816 , B01L2300/0864 , C12M23/16 , C12M25/14 , C12M35/08
摘要： A polymeric chip having at least one three-dimensional porous scaffold, a microfluidic channel inlet to the porous scaffold, and a microfluidic channel outlet from the porous scaffold. In one embodiment, the polymeric chip has two three-dimensional porous scaffolds: one scaffold comprises liver cells and the other scaffold comprises cancer cells. The chip can be used as a multi-organ tissue model system.
摘要翻译： 具有至少一个三维多孔支架，多孔支架的微流体通道入口和来自多孔支架的微流体通道出口的聚合物芯片。 在一个实施方案中，聚合物芯片具有两个三维多孔支架：一个支架包含肝细胞，另一个支架包含癌细胞。 该芯片可用作多器官组织模型系统。
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公开(公告)号：US07763456B2
公开(公告)日：2010-07-27
申请号：US11864698
申请日：2007-09-28
CPC分类号： B01L3/502753 , B01L3/5025 , B01L3/5027 , B01L2200/12 , B01L2300/0681 , B01L2300/069 , B01L2300/0816 , B01L2300/0864 , C12M23/16 , C12M25/14 , C12M35/08
摘要： A polymeric chip having at least one three-dimensional porous scaffold, a microfluidic channel inlet to the porous scaffold, and a microfluidic channel outlet from the porous scaffold. In one embodiment, the polymeric chip has two three-dimensional porous scaffolds: one scaffold comprises liver cells and the other scaffold comprises cancer cells. The chip can be used as a multi-organ tissue model system.
摘要翻译： 具有至少一个三维多孔支架，多孔支架的微流体通道入口和来自多孔支架的微流体通道出口的聚合物芯片。 在一个实施方案中，聚合物芯片具有两个三维多孔支架：一个支架包含肝细胞，另一个支架包含癌细胞。 该芯片可用作多器官组织模型系统。
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公开(公告)号：US08403557B2
公开(公告)日：2013-03-26
申请号：US11863077
申请日：2007-09-27
IPC分类号： B01F5/00
CPC分类号： B01F13/0059 , B01F5/0698 , B29C44/3415 , B29C44/3442
摘要： A micromixer is fabricated using a selective high intensity focused ultrasound foaming technique. The micromixer employs a 3D porous region for effective mixing. The 3D porous micromixer can achieve sufficient mixing results with a short mixing length for flows with a Reynolds number as low as 0.1. The fabrication process of the micromixer is rapid, low-cost, and biocompatible. The pore size of the micromixer can be controlled by adjusting the selective high intensity focused ultrasound foaming parameters. The micromixer has potential for use in lab-on-a-chip and micro-total-analysis devices.
摘要翻译： 使用选择性高强度聚焦超声发泡技术制造微混合器。 微混合器采用3D多孔区域进行有效混合。 3D多孔微混合器可以获得足够的混合结果，具有短的混合长度用于雷诺数低至0.1的流。 微混合器的制造过程是快速，低成本和生物兼容的。 可以通过调整选择性高强度聚焦超声发泡参数来控制微混合器的孔径。 微型混合器具有在片上实验室和微型全分析装置中使用的潜力。
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公开(公告)号：US20080094937A1
公开(公告)日：2008-04-24
申请号：US11863077
申请日：2007-09-27
CPC分类号： B01F13/0059 , B01F5/0698 , B29C44/3415 , B29C44/3442
摘要： A micromixer is fabricated using a selective high intensity focused ultrasound foaming technique. The micromixer employs a 3D porous region for effective mixing. The 3D porous micromixer can achieve sufficient mixing results with a short mixing length for flows with a Reynolds number as low as 0.1. The fabrication process of the micromixer is rapid, low-cost, and biocompatible. The pore size of the micromixer can be controlled by adjusting the selective high intensity focused ultrasound foaming parameters. The micromixer has potential for use in lab-on-a-chip and micro-total-analysis devices.
摘要翻译： 使用选择性高强度聚焦超声发泡技术制造微混合器。 微混合器采用3D多孔区域进行有效混合。 3D多孔微混合器可以获得足够的混合结果，具有短的混合长度用于雷诺数低至0.1的流。 微混合器的制造过程是快速，低成本和生物兼容的。 可以通过调整选择性高强度聚焦超声发泡参数来控制微混合器的孔径。 微型混合器具有在片上实验室和微型全分析装置中使用的潜力。
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公开(公告)号：US20240225354A1
公开(公告)日：2024-07-11
申请号：US18094239
申请日：2023-01-06
申请人： Larry Vansickel , Hai Wang
发明人： Larry Vansickel , Hai Wang
CPC分类号： A47J37/0731 , A47J37/041 , A47J37/0704 , F24B1/193
摘要： A barbeque cooker in which the food stays at a predetermined level and a fire tray assembly can be adjusted as to vertical position relative to the food. The fire tray assembly includes two spaced apart parallel fire trays (for holding burning fuel) that are independently adjustable as to horizontal position. Vertical and horizontal adjustments are accomplished with hand cranks making for precise adjustments. The vertical adjustment hand crank operates a scissor jack assembly. A drip tray is attached to the top of the scissor jack assembly. The fire tray assembly is attached to and vertically spaced apart from the drip tray, allowing space for the horizontal adjustment screws. The scissor jack assembly is attached to front and rear end frames, each having a top portion configured to support a rotisserie and to support a grill. Two embodiments are presented, having different configurations of the horizontal adjustment screw assemblies.
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公开(公告)号：US10147562B2
公开(公告)日：2018-12-04
申请号：US15528968
申请日：2015-11-18
申请人： Hai Wang
发明人： Hai Wang
摘要： Disclosed is an on-load voltage regulation tap switch for a transformer, comprising a main switch group, a switch contact protection branch and a switch control circuit, wherein the main switch group comprises a plurality of switch contacts, one end of the switch group is connected to a corresponding transformer winding tap, and the other end of the switch group is connected in parallel and is then connected to a power source; the switch contact protection branch is a series circuit formed by a plurality of groups of diodes and auxiliary switch contacts, and is respectively connected to both ends of a corresponding main switch in parallel; and the switch control circuit is composed of a power source, a single chip microcomputer and a peripheral circuit, and controls all of the main switches and auxiliary switches to act in a certain time sequence to complete the switching of the transformer windings.
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公开(公告)号：US09867121B2
公开(公告)日：2018-01-09
申请号：US13464838
申请日：2012-05-04
申请人： Hai Wang , Lei Zhou , Xufeng Zheng
发明人： Hai Wang , Lei Zhou , Xufeng Zheng
摘要： A network accessing method includes selecting a group representative dynamically from each machine to machine (M2M) terminal group, wherein terminals in the M2M terminal group not selected as the group representative serve as group members. The method also includes requesting, by the group representative, network access from a base station, and serving, as a group member automatically after entering an idle state or entering another cell. This enables multiple M2M terminals to access a network at the same time while avoiding network access congestion.
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公开(公告)号：US09635521B2
公开(公告)日：2017-04-25
申请号：US13363224
申请日：2012-01-31
申请人： Lei Zhou , Hai Wang , Xufeng Zheng
发明人： Lei Zhou , Hai Wang , Xufeng Zheng
摘要： Provided is a network re-entry method and apparatus in a mobile communication system. The network re-entry method includes sending, by a group delegate Mobile Station (MS) among MSs of a group, a ranging code based on a group Identifier (ID) to a Base Station (BS) and receiving, by the MSs, a Ranging-Response (RNG-RSP) message comprising a ranging status for the group from the BS.
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