18 results about "Absorption rate" patented technology

The invention belongs to the field of composition accessories of absorption products, and discloses a porous flow guide absorption composite sheet body. Comprising an outer absorption part and an inner reinforced absorption part which are composed of porous absorption layers, the outer absorption part is formed by folding the edges of the two sides of the rectangular, square, quasi-rectangular and quasi-square porous absorption layers inwards, and a folding opening is formed in the center and the adjacent area; the whole inner reinforced absorption part is in a rectangle shape or a rectangle-like shape with the width of 3-5 cm and the length of 6-15 cm, is composed of a porous absorption layer and water absorption covering layers arranged on the two opposite faces of the porous absorption layer, is wrapped in an interlayer formed after the outer absorption part is turned over, and jacks the part of the outer absorption part towards the top face of the outer absorption part. And at least one convex flow guide part is formed on the top surface of the outer absorption part. According to the invention, the self structural characteristics are fully combined, the diversion and diffusion efficiency of menstrual blood is improved by adopting a local thickening bulge mode, the surface moisture degree of the core body is reduced, and the absorption rate of the core body is improved.

The application discloses a kind of FDTD nonlinear conformal filter methods of inhibiting step error of specific absorption rate, comprising: obtaining grid model;Determine the eighth cube in each grid as material domain;The 3x3x3 three-dimensional grid matrix of using preset is scanned to the grid, determine the step grid on the two sides of human tissue / air interface;Optimize the conductivity and dielectric constant of the material domain of step grid, after all step grid is completed optimization, the first electric field component of all grid is calculated;The first electric field component of each material domain vertex of same tissue is linearly interpolated \ extrapolated, obtain the second electric field component of the center of material domain, and calculate local SAR;After obtaining the local SAR of all material domains of same tissue, the tissue average SAR of this tissue is calculated, after obtaining the local SAR of all material domains of different tissues, the 10-g SAR containing different tissues is calculated.The application can effectively inhibit the step error of the local SAR of the complex structure surface of human body, improve the accuracy of SAR statistical result.

The application discloses a kind of biological tissue optical characteristic parameter space frequency domain imaging method based on absorption rate, comprising the following steps: setting biological tissue Monte Carlo simulation parameter;Absorption rate-based biological tissue optical characteristic parameter look-up table is constructed by Monte Carlo simulation and one-dimensional zero-order Hankel transformation;For reference phantom projection cosine illumination pattern and collect fringe image;For the fringe image, Fourier transform, frequency domain filtering and inverse Fourier transform are carried out to obtain direct current component and alternating current component modulation degree;Reference phantom is replaced by measured biological tissue body, and the direct current component and alternating current component modulation degree are obtained by repeating the preceding 2 steps;Direct current and alternating current absorption rate measurement value are calculated;The minimum value of absorption rate Euclidean distance is calculated, and the absorption coefficient and reduced scattering coefficient measurement result are obtained by table lookup, to obtain optical characteristic parameter image.The application takes biological tissue absorption rate as the starting point of optical characteristic parameter inversion, significantly improves imaging sensitivity and reduces inversion error.

This disclosure proposes a calibration device for a medical imaging system, including a structural frame and a plurality of marks arranged on the structural frame. At least one of the following two conditions is satisfied: at least two of the marks have different absorption rates to the radiation used by the medical imaging system; and at least two locations within at least one of the marks have different absorption rates to the radiation used by the medical imaging system.

The invention relates to the technical field of electromagnetic measurement, and discloses a specific absorption rate evaluation method and device based on a dielectric dummy model in an automobile. The dielectric dummy whole body model comprises a head, a trunk and lower limbs which are internally communicated; the whole body model is filled with tissue fluid; interstitial fluid altimeters are respectively arranged at the navel position and the chest position of the model; measuring assemblies are arranged at the head, the chest and the crotch of the model respectively; the measuring assembly comprises a tapping auxiliary rod arranged on the model, a cylindrical probe detection rod is arranged in the tapping auxiliary rod, and a gasket is arranged between the probe detection rod and the tapping auxiliary rod. Through in-vivo measurement based on the whole-body dielectric dummy, an innovative dynamic sealing structure and intelligent data correction, the accuracy, reliability and scene applicability of automobile electromagnetic safety evaluation in a real driving state are remarkably improved.

The present disclosure relates to a system for testing an atomization core (1), wherein the system comprises: a liquid supply device (2) configured to supply a liquid to an atomization core (1) via absorption; a power supply (3) configured to energise the atomization core (1) to evaporate liquid supplied to the atomization core (1); at least one sensor (4) configured to weigh the atomization core (1); and a control module (5) configured to receive a signal from the or each sensor (4) to determine an absorption rate of the atomization core (1) based on a determined rate of weight change of the atomization core (1) during the supply of liquid thereto. The control module (5) determines an evaporation rate of the atomization core (1) based on a determined rate of weight change of the atomization core (1) during energisation of the atomization core (1). The control module (5) compares the absorption rate and the evaporation rate to determine if a predetermined comparison requirement is met.

The present invention aims to provide a BCP-containing composition that exhibits superior effects, such as improving the absorption rate and absorption efficiency of BCP by addressing its water-soluble characteristics, enhancing storage stability by addressing its susceptibility to oxidation, and reducing its distinctive odor. [Solution] (A) β-caryophyllene; (B) Krill oil; (C) Surfactants; and (D) Glycerin A composition containing the following:

The invention relates to the technical field of chemical informatics, and discloses an oral absorption rate prediction and compound structure optimization method, device and equipment, and the method comprises the steps: obtaining a compound sample data set which comprises a multi-dimensional characteristic sample parameter corresponding to each compound sample and a reference oral absorption rate; the multi-dimensional characteristic sample parameters comprise at least one of the following parameters: a fat solubility parameter, a polarity parameter, an electronic structural parameter and an in-vitro penetration parameter, and the multi-dimensional characteristic sample parameters further comprise a molecular structural parameter; and by taking the multi-dimensional characteristic sample parameters as input and the reference oral absorption rate as an output label, training a pre-constructed initial model to obtain an oral absorption rate prediction model. According to the method, molecular structural parameters are introduced into oral absorption rate prediction model construction, the oral absorption rate prediction precision of the model on compounds with complex structures and high flexibility can be remarkably improved, and more accurate data support is provided for subsequent compound structure optimization.

This invention relates to the field of cheminformatics technology, and discloses a method, apparatus, and device for predicting oral absorption rate and optimizing compound structures. The method includes: acquiring a compound sample dataset, which includes: multi-dimensional feature sample parameters corresponding to each compound sample and a reference oral absorption rate; the multi-dimensional feature sample parameters include at least one of the following: lipophilicity parameters, polarity parameters, electronic structure parameters, and in vitro permeability parameters, and also include molecular structure parameters; using the multi-dimensional feature sample parameters as input and the reference oral absorption rate as the output label, training a pre-constructed initial model to obtain an oral absorption rate prediction model. This invention incorporates molecular structure parameters into the construction of the oral absorption rate prediction model, which can significantly improve the model's accuracy in predicting the oral absorption rate of compounds with complex structures and high flexibility, providing more accurate data support for subsequent compound structure optimization.

For estimating SAR in MR scanning, a value for a SAR metric is determined from patient measurements, such as a depth camera image of the outer surface of a patient. A machine-learned model is used in the determination, such as for segmenting different tissue types with different electric field characteristics and / or estimating a SAR characteristic from tissue maps. Rather than time consuming calculations to model the patient and / or estimate SAR from patient information, the machine-learned model is used to estimate patient-specific SAR from the measurements of the patient more rapidly and accurately.

The invention discloses a dampness removing plaster with high transdermal absorption rate and a preparation method of the dampness removing plaster. A non-woven fabric bottom layer, a heating bag, an ointment layer, a non-woven fabric surface layer and a release paper layer are sequentially arranged on one side, facing the skin, of the plaster in a stacked mode. The ointment layer is composed of a dampness-clearing formula, a blood-activating and synergistic formula and a permeation-promoting system according to a specific ratio, and is prepared by an innovative preparation method. The method comprises the following steps: performing dynamic countercurrent ultrasonic extraction on medicinal materials containing volatile oil, preparing paste by staged vacuum homogenization, performing slit coating forming, performing ultraviolet sterilization and performing shaping by adopting special gradient cooling shaping equipment. The invention effectively solves the problems of low transdermal absorption rate of medicinal components of the traditional plaster and easy cracking and deformation of the plaster in the production process, and has the advantages of stable drug effect, quick response, safety in use and suitability for standardized production.

The invention provides naringin dry powder inhalation as well as a preparation method and application thereof, belongs to the technical field of pharmaceutical preparations, and particularly provides the naringin dry powder inhalation which comprises the following components in parts by mass: 1-30 parts of micronized naringin and 40-100 parts of a diluent, and the particle size distribution D90 of the micronized naringin is 1-30 [mu] m. The naringin dry powder inhalation provided by the invention is an inhalation administration preparation, has the advantages of high drug absorption rate and quick response, and the naringin dry powder inhalation provided by the invention has extremely low bitter taste and good patient compliance, and can be used for preparing an anti-inflammatory drug inhalant and / or a lung disease treatment drug.

The invention relates to a hydrate crystal form of paclitaxel as well as a preparation method and application of the hydrate crystal form. In an X-ray diffraction pattern of the hydrate crystal form, 2 theta has main diffraction peaks at 5.2 + / -0.2 degrees, 6.5 + / -0.2 degrees, 6.9 + / -0.2 degrees, 8.6 + / -0.2 degrees and 9.7 + / -0.2 degrees. The crystal form of the paclitaxel hydrate provided by the invention is in the crystal size from nanometer to submicron, has higher interface bonding force and higher tissue absorption rate, and can be applied to medicine carrying instruments.

A method for determining a specific absorption rate (SAR) is provided. The method includes a scanning information of a target object; obtaining a target set matching the scanning information of the target object; and determining an SAR estimated value for the target object based on a target RF shimming field parameter of an RF coil and the target set.