48results about How to "Good compressibility" patented technology

The invention relates to the technical field of mannitol preparation, and particularly discloses a preparation method of medicine auxiliary modified mannitol, the mannitol comprises the following components in parts by mass: 100-120 parts of mannitol, 5-10 parts of polyethylene glycol PEG, 2-5 parts of sodium carboxymethyl cellulose CMC-Na, 3-7 parts of cyclodextrin, 1-3 parts of nano silicon dioxide, 10-20 parts of plant source microcrystalline cellulose, and 1-5 parts of chitosan; through compound modification, the hardness and compressive strength of mannitol in the tablet are remarkably improved, the fragmentation phenomenon in transportation and storage is reduced, the integrity of the tablet is ensured, the powder fluidity is improved by adding nano silicon dioxide, and the plasticity of the preparation in industrial production is better; under the synergistic effect of cyclodextrin and chitosan, the dissolving property of mannitol is improved, so that the medicine disintegration is more uniform, and the preparation method is suitable for different dosage forms such as oral instant tablets and enteric sustained-release tablets; and the adjustability of the disintegration time after modification meets the diversified requirements from quick release to slow release.

The invention discloses an image coding method and system based on a generalized Gaussian model, and the related method comprises a coding part and a decoding part, the coding part comprises transformation, quantization and entropy coding, the decoding part comprises entropy decoding, inverse quantization and inverse transformation, and for image lossy coding, the inverse quantization and inverse transformation are carried out. Introducing a generalized Gaussian model to carry out modeling on probability distribution of the feature map in the encoding process, and carrying out entropy encoding and entropy decoding on the feature map according to generalized Gaussian model parameters obtained through modeling; for image lossless coding, a generalized Gaussian model is introduced to carry out modeling on probability distribution of pixels or lossless transformation coefficients in image lossless compression, and entropy coding and entropy decoding are carried out according to generalized Gaussian model parameters obtained through modeling. According to the scheme provided by the invention, the generalized Gaussian model is introduced into an image coding scheme, so that more accurate probability estimation can be carried out, the code rate required by image compression is saved, the compression performance is improved, and relatively low complexity is maintained.

This utility model relates to the field of photovoltaic module technology, specifically providing a correction device for photovoltaic modules, aiming to solve the problem of how to avoid deviations in correction caused by incoming material errors. To this end, the correction device for photovoltaic modules of this utility model includes a correction wheel, a first transfer mechanism, an elastic structure, and a position detection component. The first transfer mechanism includes a moving part; the moving part is connected to the correction wheel through the elastic structure. The first transfer mechanism is configured to drive the correction wheel to move and abut against the side of the photovoltaic module, thereby forcing the elastic structure to deform. The position detection component is configured to detect the actual position of the correction wheel, so as to determine the deviation size of the photovoltaic module based on the actual position and the preset position of the correction wheel. The correction device of this utility model can determine the deviation size of the photovoltaic module and adjust the correction size according to the deviation size to improve the correction accuracy, and also improve the working accuracy of subsequent processes.

This invention relates to the field of solid-state battery technology, and particularly to a composite solid-state electrolyte material, its preparation method, and its application. The composite solid-state electrolyte material contains a crystalline phase substance with the general chemical formula: B%A a RE b X 1 c D g +C%A d M e X 2 f D h Where A represents charge carriers; RE represents rare earth elements; M represents metallic elements; X represents... 1 X 2 D is a halide anion; A is an anion doping element or group; a RE b X 1 c D g and A d M e X 2 f D h It is a crystalline phase substance; B% is A a RE b X 1 c D g The mass fraction of the composite solid electrolyte material; C% is A d M e X 2 f D h The mass fraction of the composite solid electrolyte material is defined as follows: 0 ≤ a ≤ 3, 0 < b ≤ 1, 0.5 < c ≤ 12, 0 < d ≤ 5, 0 < e ≤ 2, 1 < f ≤ 20, 0 ≤ g ≤ 4, 0 ≤ h ≤ 5; 85 < B + C < 98, 10% < B% ≤ 85%; 10% < C% ≤ 85%, 0.2 ≤ C / B ≤ 10. The composite solid electrolyte material of this invention includes crystalline and amorphous phase components, giving it high ionic conductivity. The use of moisture-resistant non-metallic halide components instead of traditional halides and oxyhalides in the raw materials also provides it with good air stability.

An image data encoding / decoding method and a computer readable recording medium are disclosed. The image decoding method includes receiving a bitstream in which an image is encoded, obtaining a plurality of lower blocks from an upper block in a current image by using block partitioning based on a tree structure, generating a prediction image of the current image by referring to syntax information obtained from the bitstream, and obtaining a decoded image by combining the generated prediction image with a residual image obtained by performing inverse quantization and inverse transformation on quantized transform coefficients from the bitstream.

The invention belongs to the technical field of food processing, and particularly relates to an enzymolysis lotus seed tablet for promoting digestion and release of curcumin and a preparation method of the enzymolysis lotus seed tablet. The curcumin-lotus seed based tablet disclosed by the invention is prepared from the following raw materials: curcumin, lotus seed powder and enzyme; the preparation method comprises the following steps: dispersing the lotus seed powder in water, performing high-speed shearing, adding alpha-amylase, and performing enzymolysis to obtain lotus seed slurry; mixing the lotus seed powder with a curcumin solution, drying to prepare curcumin-lotus seed composite powder, and finally tabletting to prepare the curcumin-lotus seed tablet. The tablet disclosed by the invention is simple in ingredients, free of addition of auxiliary materials and capable of meeting the requirements of people on label cleaning; meanwhile, the enzyme modified lotus seed powder is used as an embedding medium of curcumin, can exert the medicinal and edible effects of lotus seeds, such as heart nourishing and blood pressure lowering, while being used as an embedding wall material, and is a natural and safe plant-based delivery carrier. The tablet provided by the invention is safe and green, and is a convenient, healthy and high-quality tablet health product.

The utility model relates to the technical field of wires and cables, in particular to a low-smoke halogen-free flame-retardant special wire and cable, which comprises a wire core and a cable base layer, the outer wall of the wire core is connected with the cable base layer, a protection structure is arranged on the outer side of the cable base layer, and the protection structure comprises a supporting assembly. The inner wall of the supporting assembly is bonded with the cable base layer, and the outer wall of the supporting assembly is bonded with the protection assembly. The supporting assembly is made of butadiene rubber and has good cold resistance, wear resistance and rebound resilience, the outer wall of the supporting assembly is bonded with the protection assembly, the protection assembly is made of a silicon rubber material, the silicon rubber material is a rubber material with excellent elasticity and compressibility, and when extruded by external force, the supporting assembly is not prone to deformation. Through the high elasticity of the protection assembly and the supporting assembly, the mechanical energy of external force is buffered, and the situation that the wire core is damaged and broken is avoided.

This invention discloses a method for evaluating the multi-dimensional coupling aerodynamic performance of a modal selector valve and an engine, belonging to the field of aero-engines. The steps are as follows: establishing a three-dimensional model of the modal selector valve; simulating the model to obtain its flow performance; establishing a computational model of the modal selector valve and calculating the total pressure after the valve; integrating a high-fidelity characteristic calculation model of the component with a zero-dimensional model of the entire engine; inputting the engine's design point performance parameters and performing design point calculations; given the engine control law and the engine's non-design point operating conditions, performing calculations; determining the convergence of the computational model; obtaining the engine characteristic diagram and aerodynamic performance under arbitrary operating conditions, thus obtaining the aerodynamic performance results considering the overall coupling effect of the modal selector valve and the engine. This invention solves the problems in existing technologies where the calculation accuracy of the overall performance calculation code for variable cycle engines cannot meet the design requirements of variable cycle engines, and the coupling of various engine components is poor.

The utility model provides a spherical tablet, and belongs to the field of pharmaceutical preparations. The spherical tablet comprises an upper hemisphere, a lower hemisphere and a middle belt, and the middle belt is located in the middle of the spherical tablet and is in a belt shape with the same thickness. The upper hemisphere and the lower hemisphere are located on the two end faces of the middle belt, and the two hemispheres are the same in size and shape. The diameter of the middle zone is larger than the diameter of the hemisphere, the diameter of the hemisphere of an upper stamping die and the diameter of the hemisphere of a lower stamping die of a tablet pressing die adopted when the spherical tablet is pressed ranges from 6.5 mm to 10 mm, and the ratio of the arc depth to the diameter of the hemisphere is (0.2-0.4): 1. The spherical tablet is small in size, easy to swallow, high in drug loading capacity and less in taking quantity; and the tablet has the advantages of good compressibility, good hardness, strong shock resistance and wear resistance, small tablet weight difference, facilitation of later coating and other operations, and good uniformity and reproducibility.

The application provides a composite material for sludge dewatering, a preparation method thereof and a sludge dewatering conditioner. The composite material for sludge dewatering comprises magnetic porous carbon and molybdenum disulfide loaded on the magnetic porous carbon, wherein the magnetic porous carbon comprises porous carbon and ferroferric oxide loaded on the porous carbon. The preparation method comprises the following steps: mixing the magnetic porous carbon with a molybdenum source and a sulfur source, and performing a hydrothermal reaction to make the molybdenum source and the sulfur source react to generate molybdenum disulfide; after the reaction is completed, performing solid-liquid separation, collecting the solid product, and calcining the solid product under an inert atmosphere at 350-450 DEG C to obtain the molybdenum disulfide magnetic porous carbon composite material; wherein the magnetic porous carbon comprises porous carbon and ferroferric oxide loaded on the porous carbon; and the composite material for sludge dewatering can construct a molybdenum disulfide magnetic carbon-based composite material with a large specific surface area, high catalytic activity and high universality, and the composite material can improve the sludge dewatering performance.

The invention relates to the technical field of traditional Chinese medicine and health food processing, and discloses a preparation process and application of a black ginseng extract lozenge, and the preparation process comprises the following steps: crushing starch, powdered sugar and polyethylene glycol in parts by weight, and sieving for later use; performing ultrasonic extraction and vacuum concentration on the black ginseng to obtain a black ginseng concentrated solution; slowly adding a pre-prepared black ginseng concentrated solution into the sieved starch and powdered sugar, and stirring to prepare a soft material; granulating, drying and finishing the soft material to obtain dry granules; and adding sieved polyethylene glycol into the dry particles, uniformly mixing, tabletting, forming, and sterilizing by ultraviolet radiation to obtain the buccal tablets. According to the method, ultrasonic-assisted extraction is adopted, so that degradation of heat-sensitive rare saponin is avoided; the concentrated solution is directly granulated, so that the difficulty that the extract absorbs moisture and is sticky is overcome, and the forming rate is increased; the prepared lozenge can activate a PI3K-Akt signal channel and regulate release of 5-HT, and can be used for preparing products for relieving chronic fatigue syndrome and improving spatial cognitive impairment.

The invention relates to a piribedil sustained-release tablet, the sustained-release tablet comprises piribedil, talcum powder, a sustained-release material, an adhesive and a lubricant, the sustained-release material is hydroxypropyl methylcellulose, and the dissolution similar factor f2 of the sustained-release tablet and an original reference preparation Tesuda # imgabs0 # is greater than or equal to 50. According to the piribedil sustained-release tablet disclosed by the invention, on the basis that a sugar-coating layer is not coated, by optimizing a prescription and adding a hydroxypropyl methylcellulose sustained-release material, the technical effect of in-vivo bioequivalence with that of an original reference preparation Tesuda # imgabs1 # is obtained.

The invention discloses a preparation method of inositol nicotinate tablets, and belongs to the technical field of pharmaceutical preparations. By optimizing the existing process and coating components, stable dissolution of drugs is realized, and the method comprises the following steps: dispersing inositol nicotinate in mixed oil to prepare an oil phase, mixing and emulsifying the oil phase and a water phase, performing spray drying to obtain drug milk powder, coating the drug milk powder with modified chitosan, and directly tabletting the coated drug milk powder and auxiliary materials. The preparation method comprises the following steps: uniformly dispersing inositol nicotinate in mixed oil to promote the inositol nicotinate to maintain the uniformity of the drug content in the subsequent process, and adsorbing solid particles on the surfaces of drug-containing oil drops through an emulsification technology to protect the drug components; coating components are reasonably designed, so that fixed-point release of the medicine is realized, the medicine is endowed with anti-pressure ability, and the medicine can be directly tableted; and the coated medicine particles are mixed with auxiliary materials and then are directly tableted, so that the process is simplified, and the coating structure of the medicine particles is protected at the same time. The preparation method can prepare the inositol nicotinate tablet with stable drug dissolution, and the inositol nicotinate tablet is good in taste and small in stimulation to gastric mucosa.

The invention relates to a lamidetan tablet and a preparation process thereof, the prepared lamidetan tablet is good in powder flowability and compressibility, the dissolution meets the requirements, and the preparation process can effectively avoid or reduce the risk of crystal transfer in preparation of a preparation.

The invention relates to a Nicodil tablet and a preparation method thereof. The Nicodil tablet comprises the following components in percentage by mass: 5-15% of Nicodil, 70-90% of a filler, 2-10% of a disintegrating agent, 0.5-5% of an adhesive and 0.2-10% of a lubricant, and the filling agent is micronized mannitol. During preparation, the mannitol, the adhesive and the internally added disintegrating agent are prepared into blank dry particles, and then the blank dry particles are mixed with the nicodil, the externally added disintegrating agent and the lubricant step by step. According to the invention, the stability of the Nicodil tablet is improved, the granulation process is improved, the obtained Nicodil tablet is superior to a reference preparation in related substance level under the influence factor condition, meets the long-term stability requirement, and is stable in product quality, free of obvious change in content and small in impurity growth under the condition of accelerating at 40 DEG C for 3 months, and is suitable for large-scale industrial production.

The invention relates to the field of auxiliary materials of medical preparations, and discloses a preparation method of silicified microcrystalline cellulose based on wet granulation, which comprises the following steps: dispersing colloidal SiO2 in water at 60-95 DEG C to obtain colloidal SiO2 dispersion liquid, and preserving heat for later use; spraying colloidal SiO2 dispersion liquid and water at 20-30 DEG C into microcrystalline cellulose for wet granulation, and controlling the rotating speed of a stirring paddle to be 200-250rpm and the rotating speed of a cutter to be 1400-1600rpm to obtain wet granules; the mass ratio of the water at the temperature of 20-30 DEG C to the water at the temperature of 60-95 DEG C is 1: (3.5-7.0); and drying and crushing the wet granules to obtain the silicified microcrystalline cellulose. According to the preparation method, the energy consumption can be reduced, the equipment investment is reduced, and the prepared silicified microcrystalline cellulose has better flowability.

The utility model discloses an external wall thermal insulation and decoration integrated composite board, which is applied to the external corner of a building and comprises an external corner decorative board and an external corner thermal insulation board, the external corner decorative board and the external corner thermal insulation board are in an integrally-formed right-angle shape, and the external corner thermal insulation board is compounded on the inner side wall of the external corner decorative board through a second cementing layer. The external wall thermal insulation and decoration integrated composite board is applied to the external corner of a building, seamless treatment is adopted, and the integrity of a thermal insulation layer at the external corner of the building is guaranteed.

Disclosed are an image encoding / decoding method, a recording medium, and a method of transmitting a bitstream. The method for decoding an image using a decoding device includes: receiving a bitstream in which an image is encoded; performing prediction on a current block included in the image to generate a prediction block; reconstructing the current block based on the prediction block; obtaining a reconstructed image based on the reconstructed current block; and performing data processing on the reconstructed image based on the data processing information included in the bitstream, wherein the data processing includes filling the reconstructed image with at least one region.

The invention provides a flexible pressure sensor for human pulse detection and a preparation method thereof. The flexible pressure sensor comprises an upper electrode layer, a lower electrode layer, an ionic gel layer and a Spacer layer. The ionic gel layer is clamped between the upper electrode layer and the lower electrode layer, and the ionic gel layer comprises a plurality of active layers which are stacked in sequence; the Spacer layer is arranged between the ionic gel layer and the upper electrode layer; each active layer is provided with a hole-shaped structure, and the average hole diameter of the hole-shaped structures of the multiple active layers is distributed in a gradient mode. By accurately controlling the aperture gradient of the ionic gel layer, graded deformation of the ionic gel film under different pressures is realized, so that the sensitivity and linearity of the sensor are improved. A combined structure of the Spacer layer and the multi-layer aperture gradient ionic gel layer is creatively arranged, and the linearity and the sensitivity can be greatly improved through the synergistic effect of the Spacer layer and the multi-layer aperture gradient ionic gel layer.

The video encoding / decoding method and apparatus according to this disclosure can: configure an intra-frame merging list for the current block, the intra-frame merging list including multiple intra-frame merging candidates; derive an intra-frame prediction mode for the current block based on the intra-frame merging list; and generate a prediction block for the current block based on the intra-frame prediction mode.

The invention relates to the field of tea processing, and provides a tea granulation method based on a moisture activation dry granulation technology, which comprises the following steps: selecting raw materials, removing impurities, carrying out fixation, drying, screening, chopping the raw materials into powder, putting the raw materials into a granulation device, adding an adhesive, spraying, adding a hygroscopic material, and taking out finished product particles. The tea particles are prepared by using a moisture activation dry method, so that the method has the advantages of increasing the granularity of the tea particles and improving the flowability and compressibility of the tea particles; meanwhile, the granules do not need to be dried again in the granulation process, the used water amount is small, the advantages of being wide in application range, high in efficiency and low in energy consumption are achieved, and the number of operation procedures is small in the continuous production process; compared with a conventional tea granulation method, the tea granulation method has the advantages that the amount of water used in the tea granulation process is very small, and large cakes cannot be formed.

The invention relates to the technical field of thermal interface materials, in particular to a carbon fiber reinforced heat-conducting phase-change composite material which comprises a carbon fiber felt, a phase-change material, a thermoplastic elastomer, an antioxidant and spherical aluminum oxide. The carbon fiber reinforced heat-conducting phase-change composite material prepared by the method has the advantages of high heat conductivity, high tensile stress, compressibility, high reliability and the like, has no obvious pumping-out and creep problems after being used as a thermal interface material for a long time, and can be applied to the fields of high-power integrated circuit heat dissipation, servers, communication, military industry, aerospace and the like.

The invention discloses an imrecoxib solid preparation and a preparation method thereof, and belongs to the technical field of pharmaceutical preparations, the solid preparation comprises the following components by mass: 15-25% of imrecoxib, 10-40% of pea maltodextrin, 10-40% of Soluplus, 1-3% of poloxamer, 10-30% of a filler, 10-20% of a disintegrating agent, 0.8-1.2% of a flow aid and 0.8-1.2% of a lubricant. Through synergistic interaction of triple carriers, Soluplus inhibits drug crystallization by means of hydrogen bonds and promotes dispersion; the poloxamer reduces the surface tension and improves the dispersity and the dissolution rate; the pea maltodextrin plays an anti-oxidation role, improves the sphericity, fluidity and stability of the particles, and is low in cost. Aiming at the difficulties that imrecoxib is low in solubility, easy to oxidize and the like, medicine dissolution is remarkably improved, related substances are more stable, and both process robustness and cost control are considered.

The invention relates to the technical field of heat dissipation, in particular to a phase-change composite heat-conducting gasket with vertical corrugated channels and a preparation method of the phase-change composite heat-conducting gasket. The invention aims to solve the problems of high hardness, poor compression compliance and large interface contact thermal resistance of the existing vertical orientation carbon-based heat conduction material and improve the actual heat dissipation efficiency of the thermal interface material in a high-power electronic device. According to the main scheme, high-heat-conductivity graphene paper or graphite paper serves as a framework base material, a composite heat conduction core with vertically-arranged bent heat conduction channels inside is constructed, and a phase-change material skin layer is combined on the surface of the composite heat conduction core. Rigid compression of the material can be converted into geometric bending deformation by utilizing an internal vertically-oriented micro-ripple structure (the section can be sine waves, sawtooth waves, trapezoidal waves or asymmetric ripples and the like), so that the compression resilience and the stress buffering capacity of the material are effectively improved; and meanwhile, the interface contact thermal resistance is effectively reduced by virtue of the self-adaptive wetting characteristic of the phase change material layer on the surface at the working temperature.

The application relates to the field of circuit breakers, and particularly discloses a movable-end adjustable vacuum circuit breaker, which comprises a side plate, an arc extinguishing mechanism and an operating mechanism, the arc extinguishing mechanism comprises a vacuum arc extinguishing chamber and an upper compression assembly, the upper compression assembly comprises a compression spring, the operating mechanism is used for driving the compression spring to move away from the end of the vacuum arc extinguishing chamber and move towards the vacuum arc extinguishing chamber, the arc extinguishing mechanism further comprises an upper adjusting assembly, the upper adjusting assembly comprises an upper screw rod and an adjusting nut which is screwed on the upper screw rod, the upper screw rod is connected to a movable conducting rod of the vacuum arc extinguishing chamber, the end of the compression spring close to the vacuum arc extinguishing chamber is in abutment with the adjusting nut, and an operating opening aligned with the adjusting nut is formed in the side plate. The application has the effect of improving the convenience of adjusting the compression amount of the compression spring by the staff.

The utility model discloses an air damping spring type large vehicle traction device, and belongs to the technical field of vehicle traction. An air damping spring type large vehicle traction device comprises a front traction beam and a rear traction beam hinged to the front traction beam, and the rear traction beam comprises a rear beam body and a cylinder fixedly connected to the rear beam body; one end of the traction rod is hinged to the front traction beam, a piston is fixedly connected to the traction rod and divides an inner cavity of the cylinder body into two damping cavities, damping parts are arranged in the two damping cavities, a through flow guide channel is formed in the piston, and the flow guide channel communicates with the two damping cavities; first-stage buffering is formed through the elastic force of the elastic damping piece, in the buffering process, along with the movement of the piston, gas in the two cavities is exchanged through the flow guide channel, and therefore the second-stage buffering and two-stage buffering mode is formed, and the buffering effect can be improved while the special strength of the traction rod is not increased. And a high buffering effect is still achieved for high impact force of braking of large vehicles.

The present invention provides a device and method for realizing multiple laser shot peening forming under a rigid constraint layer, including a motion system, a laser shot peening strengthening system, a laser heating and temperature rising system, a particle flow system and a working tank, wherein a workpiece to be processed is installed in the working tank, and the working tank and the particle flow system are connected to form a closed loop, and the charged black paint particles are adsorbed on the surface of the workpiece to be processed through the particle flow system; the laser heating and temperature rising system is used to make the charged black paint particles form a black paint deposition layer on the surface of the workpiece to be processed; the laser shot peening strengthening system is used to perform laser shot peening on the surface of the workpiece to be processed. The present invention utilizes the characteristic that small charged particles are easily adsorbed on the metal surface, and adopts the method of nanosecond pulse laser heating to melt and deposit tiny black paint particles at designated positions, thereby realizing timely replenishment of the absorption layer and precise control of the thickness of the absorption layer.

Disclosed are an image encoding / decoding method and a method of transmitting a bitstream. A method of decoding a 360-degree image performed by an image decoding apparatus includes receiving a bitstream in which a 360-degree image is encoded, the bitstream including data of an extended two-dimensional image, the extended two-dimensional image including a two-dimensional image and a predetermined extension region, and the two-dimensional image being projected from an image having a three-dimensional projection structure and including one or more faces; generating a predicted image by performing prediction based on information about prediction included in the bitstream; and reconstructing the extended two-dimensional image based on the predicted image and a residual image.

The invention discloses an ion capacitance type flexible pressure sensor and a preparation method thereof, and relates to the technical field of flexible pressure sensors, the ion capacitance type flexible pressure sensor comprises an upper elastic packaging layer, an upper flexible electrode, a dielectric layer, a lower flexible electrode and a lower elastic packaging layer which are sequentially arranged from top to bottom; each of the upper flexible electrode and the lower flexible electrode comprises a flexible substrate layer and a conductive layer arranged on one side, facing the dielectric layer, of the flexible substrate layer, and the flexible substrate layer comprises a flexible plate body and a gradient micro-dome array arranged on one side, facing the conductive layer, of the flexible plate body; the gradient micro-dome arrays of the upper flexible electrode and the lower flexible electrode are arranged in an axial symmetry mode, and the gradient micro-dome arrays of the upper flexible electrode and the lower flexible electrode are arranged in a staggered mode, so that the gradient micro-dome arrays of the upper flexible electrode and the lower flexible electrode are in a precise interlocking state. According to the invention, the initial contact area between the upper and lower flexible electrodes and the dielectric layer is reduced, the vertical pressure can be dispersed into the horizontal thrust, and the compressibility and the contact area change rate of the device are obviously improved.

The present invention relates to an inverse quantization device and method used in a video decoding device. Provided are an inverse quantization device and method for acquiring a quantization coefficient, estimating a quantization parameter in units of a quantization group or a quantization parameter prediction group, generating an inverse quantization matrix for adaptive quantization, and generating a transform coefficient from the quantization coefficient by using the quantization parameter and the inverse quantization matrix.