摘要:
The present invention provides an extraction method for the leaves of Ilex kudingcha C. J. Tseng, and the total saponins from I. kudingcha leaves extracted by using this method, and use of the total saponins in preparing a drug for reducing cholesterol and blood lipids and anti-atherosclerosis. The extraction method comprises the following steps: subjecting I. kudingcha leaves to refluxing extraction with ethanol aqueous solution to obtain an extracted solution; filtering the extracted solution and removing ethanol, and then separating and purifying the solution using a macroporous resin column.
摘要:
The present invention provides an extraction method for the leaves of Ilex kudingcha C. J. Tseng, and the total saponins from I. kudingcha leaves extracted by using this method, and use of the total saponins in preparing a drug for reducing cholesterol and blood lipids and anti-atherosclerosis. The extraction method comprises the following steps: subjecting I. kudingcha leaves to refluxing extraction with ethanol aqueous solution to obtain an extracted solution; filtering the extracted solution and removing ethanol, and then separating and purifying the solution using a macroporous resin column.
摘要:
FIG. 1 is a front, right and top perspective view of a filter element, showing my design. FIG. 2 is a rear, right and bottom perspective view thereof. FIG. 3 is a front elevation view thereof. FIG. 4 is a rear elevation view thereof. FIG. 5 is a left side elevation view thereof. FIG. 6 is a right side elevation view thereof. FIG. 7 is a top plan view thereof; and, FIG. 8 is a bottom plan view thereof. The broken lines depict portions of the filter element that form no part of the claimed design.
摘要:
The present invention provides a method and device for generating a filter coefficient in real time. The method includes: looking up a converted window function value in a converted window function table based on a current coefficient index; generating a current cut-off angular frequency; generating a look-up table address based on the current coefficient index, the filter order and the current cut-off angular frequency and looking up a sine value in a sine table based on the look-up table address; and multiplying the converted window function value by the sine value to obtain the filter coefficient. The device includes a first memory, a second memory, a look-up table address generation module and a first multiplier. The present invention is easily implemented with low hardware resource consumption and high flexibility, and is particularly applicable for the hardware implementation of high-order finite impulse response filters.
摘要:
The present invention relates to a method, a terminal and a server for allocating a signal route resource in a Video On Demand (VOD) service. The method includes: sending a route detection message to a VOD server; receiving a route resource list replied by the VOD server; receiving a route detection stream according to a signal route resource in the obtained route resource list; judging, according to the received route detection stream, whether the signal route resource corresponding to the received route detection stream is valid; and reporting valid signal route resource information to the VOD server. Through a signal route detection method, a location of a VOD terminal device is automatically identified, so that roaming of the VOD terminal device may be realized, and when a coverage relation of the terminal is changed, the VOD service may be normally supported without any additional processing.
摘要:
The present invention relates to an ironing board cover with at least three layers (18, 20, 22) that are arranged on top of each other, wherein one of the layers (18, 20, 22) is a heat resistant cover layer (18) that is permeable to steam (26), another one of the layers (18, 20, 22) is a porous layer (20) that is at least partially permeable to steam (26) and heat, and a further one of the layers (18, 20, 22) is a water proof layer (22) that is impermeable to steam (26) and/or liquid, wherein the porous layer (20) is arranged between the cover layer (18) and the water proof layer (22).
摘要:
A showerhead that injects two process gases into the processing chamber via separate sets of holes. The showerhead is constructed of upper plate and lower plate. Upper plate has a first set of holes. The lower plate has two sets of holes: one set is aligned with the holes in the upper plate, while the second set has no corresponding holes in the upper plate. Both sets of holes in the lower plate are made to have two different diameters: a larger diameter extending from the top surface of the lower plate, while a smaller diameter extends from the bottom surface and meets with the larger diameter. A set of pipes are inserted through the holes in the upper plate and the corresponding holes in the lower plate, and are sealingly brazed to both plates. Cooling channels may be provided in the lower plate.
摘要:
A two-beam accelerator device including a drive beam source and an accelerated beam source for providing a drive beam and accelerated beam, a detuned resonant cavity disposed in the path of the drive beam and the accelerated beam, and a two-beam focusing device and method of use thereof. The detuned resonant cavity may be rectangular, square, axisymmetrical, and/or cylindrical. The focusing device may include a modified quadrupole magnet having four magnets, a central opening, a channel in the central opening, an opening in one of the four magnets, the opening having a non-magnetic channel lined with a magnetic material.
摘要:
A real-time digital quadrature demodulation method and device for the ultrasonic imaging system are disclosed in this invention. In addition to a multiplying step and a filtering step, the method further comprises a sine and cosine table generating step for generating the sine and cosine table in real time, and a filter parameter generating step for generating corresponding filter parameters in real time to filter signals from the multipliers. The device comprises two multipliers, two filters, a sine and cosine table generating module, a filter parameter generating module, and two parameter memories. The real-time digital quadrature demodulation method and device for the ultrasonic imaging system according to the invention are capable of effectively saving the storage resource, and are easily controllable.