1407results about How to "Good compressibility" patented technology

Metformin Hydrochloride (herein referred to as metformin HCl) that may be 98.5%-100% pure is a high dose drug capable of being directly compressed with specific excipients into tablets having desired, hardness, disintegrating ability, and acceptable dissolution characteristics. Metformin HCl is not inherently compressible and thus presents formulation problems. Excipients used in the formulation enhance the flow and compaction properties of the drug and tableting mix. Optimal flow contributes to uniform die fill and weight control. The binder used ensures sufficient cohesive properties that allow metformin HCl to be compressed using the direct compression method. The tablets produced provide an acceptable in-vitro dissolution profile.

A structure for use in industrial fabrics such as paper machine clothing and engineered fabrics. The structure is a bicomponent extruded elastomeric netting or mesh having a high degree of both compressibility under an applied normal load and excellent recovery (resiliency or spring back) upon removal of that load.

Cosmetic compositions containing nacreous pigments of large particle size coated synthetic mica and method for increasing or improving the gloss, glint, brightness, whiteness, transparency and compressibility of cosmetic compositions employing same.

The method includes following steps: scanning DCT coefficient blocks according to sequence so as to obtain last one nonzero coefficient (NC) and the coefficient in front of the last one NC in coefficient block, and number value of NC; based on the number value of NC to calculate difference value between number value of NC in this block and number value of NC in adjacent block, and constructing context model for number value of NC; calculating flag bit of NC for last one NC and coefficients before the last one NC; selecting context model to encode flag bit of NC; subtracting 1 from absolute value of NC according to scanning sequence or scanning inverted sequence; and selecting context model to encode number value of NC, and its position in the scan etc; encoding sign bit. The invention also discloses corresponding decoding method.

The invention provides a method and a device of multiple description video coding based on a relevance optimization rule, belonging to the field of video coding. The device comprises a coder, a decoder, a channel 1 and a channel 2, wherein the coder comprises a similarity optimization rule module, a preprocessor, an odd and even frame separator, a standard coder 1 and a standard coder 2; and the decoder comprises a standard decoder 1, a standard decoder 2, an odd and even frame interleaver and a postprocessor. The video coding method better keeps time domain relevance in a video subsequence by using the relevance optimization rule aiming at different motion information on the premise of guaranteeing the compression performance of each video sequence, thereby ensuring that a one-way decoder can more effectively restore lost information so as to improve the reconstruction quality of the one-way decoder.

The invention belongs to the field of picture/video coding/decoding in the signal processing, relating to an entropy coding method of conversion coefficient in the picture/video coding. The invention extracts the position information and value information of non-zero coefficients from a string of coefficients scanned to make the variable-length coding, and as coding the position information, combines the continuous zero coefficients and non-zero coefficients into two- dimensional combined pairs of zero-coefficient travel and non-zero-coefficient travel and makes variable-length coding on them, and as coding the value information, combines the continuous plus or minus 1 and the values or absolute values of the back coefficients with the absolute values greater than 1 into two-dimensional pairs of the travel of plus or minus 1 and the said value or absolute value, and makes the variable-length coding on them, or uses 1 bit to indicate if the absolute values of the string of non-zero coefficients are all 1. The invention makes further use of the statistical properties in the position information and the value information of the non-zero coefficients, thus obtaining a prior compressing performance to that of the existing entropy coding method.

Methods, devices and systems enhance compression and decompression of data blocks of data values by selecting the best suited compression method and device among two or a plurality of compression methods and devices, which are combined together and which said compression methods and devices compress effectively data values of particular data types; said best suited compression method and device is selected using as main selection criterion the dominating data type in a data block by predicting the data types within said data block.

The invention discloses an enhancement type bi-directional motion vector predicting method aiming at interframe predictive coding in a mixed video coding framework, comprising the following steps of: (1) solving an alternative set containing a plurality of bi-directional motion vector prediction values through an prediction operator by comprehensively utilizing the time domain correlation and the space domain correlation of motion information for a current coding module; and (2) selecting an optimal motion vector prediction value from the alternative set by adopting a self-adaptation motion information prediction selection method to carry out subsequent coding computation and decoding computation as the motion vector prediction of the current coding module. The invention enhances the prediction accuracy of a final motion vector by comprehensively utilizing the correlated characteristics of the motion information on time domains and space domains and can independently complete on coding and decoding ends without detuning by utilizing a self-adaptation selection technology based on a prediction coding block SAD standard, thereby enhancing the compressive property of the bi-directional interframe predictive coding and being widely used for the field of mixed video communication.

The invention provides an adaptive spatial scalable coding method based on HEVC (high efficiency video coding) standard. According to the method, the reasonable lower sampling scheme is designed to realize the space scalability by analyzing the characteristics of video sequence and considering the size of a coding unit CU in the HEVC (high efficiency video coding); different prediction modes are designed aiming at the movement characteristics of the video sequence, the reducing code rate is predicted by the inter-layer motion; the effective inter-layer residual predication is used to reduce the residual information amount and enhance the compression property; the reasonable judgment rule is designed, and the inter-layer or in-layer predication coding is selected adaptively.

The invention relates to a moisture absorption and perspiration fiber with a hydrophilic function, comprising filaments and chopped fibers. The preparation process comprises the following steps: modifying conventional polyester to obtain hydrophilic modified polyester; mixing the conventional polyester, the hydrophilic modified polyester and water soluble polyester according to a certain proportion for carrying out composite spinning; extruding the mixture by a profile spinneret and carrying out postprocessing process for spinning to obtain the hydrophilic moisture absorption and perspiration polyester filaments or chopped fibers. Alkaline solution treatment is carried out on fabrics made from the fiber provided by the invention to form multiple micropores and trenches in the surfaces of the fabrics, so that the fabrics are dry and comfortable with water absorption and perspiration and ventilation properties, thus the fabrics can be manufactured into sportswear and underwear. In the invention, structural design and chemical modification of the fiber are combined, so that the moisture absorption and perspiration property is greatly enhanced; and in addition, as the fiber is free from influence of blend fiber or the manufacturing process, the applicability is wide.

The invention relates to a Bayer image compression method based on YUV conversion, which belongs to the technical field of an aerospace optical remote sensor and is a Bayer image compression method used for an aerospace optical remote sensing CMOS camera. The method comprises the following steps: carrying out space conversion on a Bayer-format image from a three-color space to a brightness-chroma space, eliminating the relativity among the three color components to be ready for different compression ratios used by brightness and chroma, self-adaptively determining the compression ratios based on the complexity of the image, carrying out line conversion and encoding. The invention greatly improves the quality of the compressed image by carrying out space conversion to eliminate the relativity among the three color components, and further enhances the adaptive capacity of the camera by using different compression ratios for images of different complexities.

The invention relates to a one-stage method for preparing a metal matrix light-weighted composite material. The invention uses the method of pressure maintaining percolation and vacuum suction casting to make molten metal immerse into the gaps among hollow spheres by penetrating through a porous ceramic plate or a graphite plate under the function of negative pressure, after the molten metal is cooled down after totally infiltration, and finally, the molten metal is demoulded and taken out, then a foamed metal matrix composite material including closed bubbles can be obtained. The hollow spheres are mixed hollow spheres of two or more than two kinds of Al2O3 hollow spheres, SiC hollow spheres, C hollow spheres or glazed hollow beads of different or same sizes. The porosity of the metal matrix composite material prepared by the method of the invention can reach more than 60% and the density can be obviously reduced, besides, the compression strength can be improved by 20-50% compared with the similar product, so that the high-strength and light-weighted matrix light-weighted composite material with various functions like damp shock absorption, sound insulation and noise reduction, energy absorption can be obtained. According to the one-stage method for preparing the metal matrix light-weighted composite material disclosed by the invention, the process is simple, the procedure is less and the applicable range to the varieties and sizes of the hollow sphere particles is wide, and nearly no selection to the matrix metal, the foam metal products of different densities can be prepared.

The present invention provides a compression method of Chinese text and a corresponding decompression method, which support ANSI codes. The compression method comprises the following steps: according to the position of the characters of the Chinese text to be compressed in the character code table, the characters of the Chinese text to be compressed are encodes by 1 or more than 1 bytes; the number of the bytes is marked in the generated code word; wherein, the character code table comprises the characters which are arranged in the descending order according to the frequency of occurrence of the characters of the Chinese text to be compressed; the generated code word is written into a compressed file. The compression method maintains the semantic characteristics of Chinese data flow to the greatest extent, and can be used with various compression algorithms and compression software.

The invention discloses an iron-based soft magnetic composite. The iron-based soft magnetic composite comprises atomized iron-based powder, ultra-fine high melting point inorganics and lubricant, wherein phosphate and an organic silicone resin insulating layer cover the surface of the atomized iron-based powder. A preparation method of the iron-based soft magnetic composite comprises the following steps that the atomized iron-based powder and the ultra-fine high melting point inorganics are fully mixed to obtain a mixture, high-temperature heating treatment is conducted on the mixture in a non-oxidizing atmosphere, heat preservation is conducted on the mixture for above 30min, the mixture is cooled to enable the temperature of the mixture to be the room temperature, surface phosphating treatment and organic silicon resin covering are conducted on obtained iron powder isolated through the inorganics, and then pressing annealing is carried out. Due to the fact that the iron powder is isolated through the ultra-fine high melting point inorganics, annealing can be conducted on the iron powder at a high temperature of about 1000 DEG C, sintering cannot happen, and the iron powder has high compressibility; an insulating layer covers the surface of the iron powder after phosphating treatment is conducted on the iron powder, phosphide has a lubricating effect on the iron powder, internal friction is reduced in the pressing process, and the compaction density of the powder is improved; due to the fact that organic silicon resin is added, distribution of the insulating layer on the surface of the iron powder is improved, and the soft magnetic property is optimized after forming sintering is conducted on the powder.

The invention provides a shale compressibility comprehensive evaluation method based on uniaxial strength experiment. The method comprises the steps of (1) taking a shale core sample for executing uniaxial compressive strength test, testing an elasticity parameter, and drawing a stress-strain curve diagram; (2) calculating normalized elasticity modulus and normalized poisson ratio to obtain a brittleness index; (3) obtaining key points on the stress-strain curve, and calculating the shape index of the stress-strain curve; (4) obtaining fracture distribution diagram of the side face of the fixed sample, and calculating a fracture distribution index through box-counting dimension method; (5) measuring spallation fragment mass distribution at different scales through a screen and a balance so as to obtain a block distribution index; and (6) calculating arithmetic mean value of the obtained brittleness index, shape index of the stress-strain curve, fracture distribution index and block distribution index of fragments to get the comprehensive compressibility index. The method provided by the invention is used for evaluating fracture net forming capability of the shale after being compressed, the experiment is simple and easy to carry out, and post treatment is visual and simple, so that the method is suitable for indoor evaluation and oilfield in-site application.

The invention provides heat conducting silicon grease comprising a component A and a component B. The component A is prepared from binder, vinyl phenyl silicon resin, methyl hydrogen silicon oil, phenyl hydrogen silicon resin and inhibitor; the component B is prepared from binder, vinyl phenyl silicon resin and a catalyst; the binder is prepared from vinyl silicon oil, methyl silicon oil, heat conducting filler, gas-phase white carbon black and a silane coupling agent. The heat conducting silicon grease is high in lubricity, compressibility and adhesivity, wide in heat resisting range and high in heat conducting performance and capable of effectively reducing contact thermal resistance of the contact interface and being applied to an electronic/communication product with high requirement for heat dissipation. Vinyl groups in the preparing raw materials of the heat conducing silicon grease and hydrogen groups crosslink to a certain degree, the structure can improve the heat conducting capacity, and the heat conducting effect is durable and stable. The heat conducting silicon grease can be prepared at the normal temperature, and the preparing method is simple, easy to operate, capable of being mixed manually or mechanically and suitable for large-scale production.

The invention discloses a polyurethane foam fire retardant obtained by reacting 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, aniline and benzaldehyde. The structural formula of the polyurethane foam fire retardant is represented by a formula in the patent specification. According to the preparation method of 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide-4-[(aniline)methyl]benzene, aniline and benzaldehyde are introduced into the 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) fire retardant structure by Mannich reaction, so that the cost of the fire retardant is reduced; synthesized 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide-4-[(aniline)methyl]benzene is used as a fire-retardant rigid polyurethane foam, and possesses relatively high fire retardant; and the oxygen index can reach 24 to 26%. The polyurethane foam fire retardant possesses a promising application prospect in buildings, insulation, and specific occasions.

The effervescent health beverage table is featured by that it contains functional oligosaccharide, such as oligo-xylose, oligo-fructose, oligo-galactose, oligo-isomaltose, etc., with bifidobacterium proleferating function and may contain medicine, vitamins, minerals, soluble chitin and other functional factors. The tablet is produced through sieving, mixing, drying at 55-65 deg.c and tableting. The effervescent health beverage tablet, when being thrown into water, will be dissolved instantly into homogeneous beverage, health liquid, medicated tea, etc. while producing bubbles and turning up and down.

The embodiment of the invention provides an adaptive loop filter method in video coding and decoding. The method comprises: image block division is carried out on an inputted reconstruction video image, a similar block matrix is formed based on the image blocks, and singular value decomposition is carried out on the similar block matrix to obtain a singular value of the similar block matrix; a standard difference of the reconstruction video image is calculated, a shrinkage filter threshold value of the similar block matrix is determined according to the standard different, a coding mode, and a quantization parameter of the reconstruction video image, and shrinkage filtering is carried out on the singular value of the similar block matrix based on the shrinkage filter threshold value; and the image blocks in the similar block matrix are reconstructed by using the shrunk singular value to obtain an adaptive loop filter video image. According to the embodiment of the invention, an adaptive filter control parameter estimation method is put forward by using non-local similarity inside a video image and high-efficiency adaptive loop filtering in video coding and decoding is realized, so that the video compression performance is improved effectively.

The invention relates to a terrace monitoring video compression method and system based on deep learning. The terrace monitoring video compression method comprises the steps: 1, generating a background picture; 2, determining the overall brightness, color and light parameters of each frame of image; 3, recording pictures, lighting time ranges and building positions of lighting and turning off states of the terminal building and the boarding bridge; 4, detecting an airplane, a vehicle and a person in each frame of image in the original video by using a region-based convolutional neural network,and cutting off the detected objects according to the positioning positions of an algorithm; 5, sequentially storing the contents processed in the steps 1 to 4 into a linked list in a node form according to a processing sequence; 6, decompressing the video; 7, covering the building picture in the rendered background picture; and 8, taking out the plurality of object videos from the linked list, covering each frame of picture in the video into a corresponding background picture according to the position information, and playing the pictures at a speed of 25 frames per second.

The invention discloses a slow-dissolving block detergent and a preparation method thereof. The slow-dissolving block detergent consists of the following components in weight percentages: 5-70% of a surfactant, 5-50% of a slow-dissolving excipient and a processing agent. The method takes a new slow-dissolving excipient and a suitable surfactant as main components of a composition formula to develop the slow-dissolving block (piece) detergent with sustained release and long effect and better cleaning and cleanliness keeping performances. The slow-dissolving block detergent is further added with a tabletting auxiliary agent which does not affect performance of the detergent, and the slow-dissolving block detergent added with the tabletting auxiliary agent has better compressibility and lubricity, and is more suitable for being manufactured by a tabletting method, and the product obtained has dry and comfortable and smooth appearance, convenient use and no sticky performance.