摘要:
An insertable stent is provided for joining together and facilitating healing of adjacent tissues. Typically, the tissues are mammalian tissues. The insertable stent is made from completely non-toxic, bio- and blood-compatible materials. Each of the tissues employed herein defines an internal cavity. The insertable stent body defines a bore. The bore permits fluid to pass through the insertable stent body. In use, the insertable stent body is introduced into the internal cavities of the tissues. The insertable stent body fits within the confines of, and in contact with, each of the adjacent tissues. Typically, at least a portion of the insertable stent body is fusible to the adjacent tissues for facilitating healing of these tissues.
摘要:
An invasive medical device includes a fluid path of microbubbles which is imaged by ultrasound during use of the device. The fluid path extends through the device, preferably to the distal end of the device, so that the diffuse reflection of ultrasound from the microbubbles can be received to image the location of the device. The fluid path can be open, terminating at the tip of the device, or can be a closed path of a circulating microbubble fluid used for imaging and/or cooling.
摘要:
Searching multimedia information which allows determining preferences based on very little amounts of data. The preferences are nonparametrically determined. Each preference is quantized into one of a plurality of bins. By doing the quantization, the distances between positive and negative samples are increased. The quantization amount may change depending on the number of samples which are used. The quantization can be used in a support vector machine or the like.
摘要:
A Discrete Fourier Transform watermark for use with digital images/video. A Y component of a Y, U(Cb), V(Cr) digital data stream representing color components of digital video is extracted as the digital data for embedding the watermark. The digital data is then scaled to a standard size. A Discrete Fourier Transform (DFT) is performed on the digital data, and a magnitude domain of the Discrete Fourier Transform is computed. The watermark is embedded into selected frequency bands of the computed magnitude domain of the Discrete Fourier Transform, thereby creating a watermarked magnitude domain. The selected frequency bands comprise one or more middle frequency bands, and the middle frequency bands comprise a band of circular rings of the magnitude domain. An inverse Discrete Fourier Transform is performed on the watermarked magnitude domain to reconstruct the digital data with the embedded watermark.
摘要:
Methods and systems for measuring mechanical property of a vascular wall and a method and system for determining health of a vascular structure are provided wherein local deformation of a vessel wall resulting from physiologic pressures with altered transmural forces is measured. A non-invasive free-hand ultrasound scanning-procedure was performed to apply external force, comparable to the force generated in measuring a subject's blood pressure, to achieve higher strains by equalizing the internal arterial baseline pressure. When the applied pressure matched the internal baseline diastolic pressure, strain and strain rate increased by a factor of 10 over a cardiac cycle. Radial arterial strain was assessed in the vessel wall over the entire deformation procedure using a phase-sensitive, two-dimensional speckle-tracking algorithm. An elastic modulus reconstruction procedure was developed to estimate the non-linear elastic properties of the vascular wall.
摘要:
A hollow core article of gluelam wood or engineered bamboo furniture, such as bench or table, includes a horizontal main panel (1) and a pair of vertical side panels (2) having upper ends respectively connected to opposite ends of the main panel (1) to support it. The main panel (1) includes a main framework (11), an upper plate (12) disposed on ledges (1115) on an upper surface of the mainframe work (11), and a lower plate (13) having edges disposed on ledges (1116) on a lower surface of the main framework (11). Each of the side panels (2) includes a side framework (21), an outer support plate (22) having edges disposed on ledges (2116) and (2115) on an outer surface of the side framework (21), and an inner support plate (23) having edges disposed on ledges (2116) and (2115) on an inner surface of the side framework (21).
摘要:
Glue-laminated bamboo furniture articles include a main panel (1) and plural panel supports (2). The panel (1) includes a main framework (11), a main plate (12) disposed on the main framework (11) and outer framework (13) covering the main framework (11). The main framework (11) is formed by joining corresponding ends of a plurality of frame borders (111). The main plate (12) corresponds in shape to a plane enclosed by the main framework (11) and includes slopes on interfacial edges (121) thereof. The outer framework (13) is formed by joining corresponding ends of sealing plates (131). Sloped upper ends (1311) of the sealing plates match the slopes on the interfacial edges (121) of the main plate (12). The resulting gluelam bamboo furniture has a trim aesthetic appearance, exhibits the beautiful natural texture of bamboo, effectively prevents the furniture from warping, has great durability, conserves materials and effectively reduces production costs.
摘要:
A hollow core article of gluelam wood or engineered bamboo furniture, such as bench or table, includes a horizontal main panel (1) and a pair of vertical side panels (2) having upper ends respectively connected to opposite ends of the main panel (1) to support it. The main panel (1) includes a main framework (11), an upper plate (12) disposed on ledges (1115) on an upper surface of the mainframe work (11), and a lower plate (13) having edges disposed on ledges (1116) on a lower surface of the main framework (11). Each of the side panels (2) includes a side framework (21), an outer support plate (22) having edges disposed on ledges (2116) and (2115) on an outer surface of the side framework (21), and an inner support plate (23) having edges disposed on ledges (2116) and (2115) on an inner surface of the side framework (21).
摘要:
A bioprosthetic valve graft comprises a valve frame and valve flaps, the latter acting to open or close a valve aperture to directionally control fluid flow through the bioprosthesis. The bioprosthetic valve graft comprises a biomaterial suturelessly bonded to the valve frame, avoiding sutures and substantially reducing medical complications in implantations.