31 results about "Absorption rate" patented technology

A metal organic framework, comprising: an organic ligand; a structure Sx constituted by one or more of O2-, OH2, OH−, OCH3−, and OC2H5−; and a metal ion, wherein the metal organic framework has a structure SM-x, in the structure SM-x, two or more metal ions are bonded to one oxygen atom in the structure Sx, the number of the metal ions in a unit lattice is two or more, and a water absorption rate A obtained by formula (1) is 25% or more:water⁢ absorption⁢ rate⁢ A=(W1-W2) / W2(1)in the formula, W1 represents a mass of the metal organic framework after being left until an equilibrium moisture content is reached under conditions of a temperature of 25° C. and a relative humidity of 50%, and W2 represents a mass of the organic metal framework after obtaining the mass W1 and being left at a temperature of 200° C. for 1 hour.

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.

In one aspect, the disclosure relates to compositions and use thereof including an absorbing substance that absorbs light at specific wavelengths, thus allowing the refractive index of the medium at neighboring wavelengths to be modulated accordingly. This modulation allows reduction of the refractive index mismatch between separate phases with distinct refractive indices, thus mitigating scattering. The compositions are soluble in water and have high absorptivity, thus significantly increasing the refractive index at desired wavelengths. In one aspect, these materials have been proved safe in oral administration. In another aspect, provided herein is a protocol that enables diffusion of these substances into the aqueous phase of biological tissues, including in living organisms, thereby achieving increased transmission in muscles and allowing clear visualization of deep bones, vessels, and nerves that are otherwise invisible in the body.

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.

To provide a composition that is easy to swallow, has good texture, has good filling properties, has low dispersibility, and / or has high portability of tablets containing the composition.SOLUTION: This composition has specific ranges in particle parameters including particle area, Feret diameter, and / or aspect ratio; in composition parameters including BS ratio at a height of 30 mm, BS ratio 60 minutes after the start of measurement, powder water absorption rate, angle of repose, difference angle, weight residual ratio, and / or electromotive force; and / or in tableting parameters including disintegration time in water and / or disintegrability in water.SELECTED DRAWING: None

To provide a composition that is easy to swallow, has good texture, has good filling properties, has low dispersibility, and / or has high portability of tablets containing the composition.　This composition has specific ranges: in particle parameters including particle area, Feret diameter, and / or aspect ratio; in composition parameters including BS ratio at a height of 30 mm, BS ratio 60 minutes after the start of measurement, powder water absorption rate, angle of repose, difference angle, weight residual ratio, and / or electromotive force; and / or in tableting parameters including disintegration time in water and / or disintegrability in water.

The present invention relates to the field of absorption rate detection technology, and specifically to a detection device for the absorption rate of a carbon dioxide absorbent, comprising a chassis provided with a transverse partition, a hinged sealing cover on the top of the chassis, a placement plate for placing a sample chamber provided on the transverse partition, a weight sensor provided for quality inspection of the placement plate and the sample chamber, a connection box fixedly provided on the placement plate and passing through the placement plate, one end of the connection box being inserted into the sample chamber, the other end of the connection box being connected to an air intake mechanism located at the bottom of the chassis, a rotatable jet mechanism being provided at the end of the connection box inserted into the sample chamber, the jet mechanism being able to rotate under the action of the carbon dioxide provided by the air intake mechanism and spraying the carbon dioxide onto the carbon dioxide absorbent. The present invention does not require the use of additional power and can automatically and evenly spray the carbon dioxide onto the carbon dioxide absorbent, while automatically sealing the opening of the sample chamber using the air pressure sealing cover, thereby preventing the carbon dioxide from leaking out and affecting the accuracy of the detection data.

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.

The utility model discloses a double-C-shaped ultrathin leakproof absorption core, which belongs to the technical field of absorption cores and comprises an absorber and a wrapping layer, the absorber is sequentially composed of a permeable layer, an absorption layer and a diffusion layer from top to bottom, and the absorber is oppositely folded along the diffusion layer to form a double-layer absorber. The double-layer absorber is sequentially composed of a permeable layer, an absorption layer, a diffusion layer, a diffusion layer, an absorption layer and a permeable layer from top to bottom. The wrapping layer wraps the outer surface of the double-layer absorber, and the wrapping layer is provided with a liquid storage groove extending in the longitudinal direction at the bottom of the double-layer absorber; according to the utility model, liquid can permeate in the absorption core body, the air permeability is good, the water absorption rate of the absorption core body can be improved, the liquid is prevented from being retained or leaked on the surface of the absorption core body, and the absorption core body has good water absorption and comfort.

The present invention relates to a pharmaceutical composition containing niclosamide or a pharmaceutically acceptable salt thereof and a method for preparing the same, which can improve the low body absorption rate of niclosamide.

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 relates to a metal organic framework material with high laser absorptivity as well as a preparation method and application of the metal organic framework material. The metal organic framework material is a crystalline porous material formed by interaction of a hydrotalcite-like-carbon quantum dot composite nano additive, metal ions and an organic ligand. The preparation method comprises the following steps: 1, sequentially adding hydrotalcite-like compounds and carbon quantum dots into deionized water, and carrying out ultrasonic treatment to obtain a first product; 2, adding the first product into deionized water containing an organic ligand for ultrasonic treatment; 3, fully mixing the mixed solution with an ionic water solution containing metal salt; 4, adding a sodium borohydride aqueous solution into the mixed solution, and standing for reaction; 5, after the reaction is finished, removing impurities; and 6, carrying out gradient heating and drying to obtain the metal organic framework material. The invention has the following advantages: on one hand, particle size adjustment is realized, and laser absorptivity is improved; on the other hand, the decomposition and ionization efficiency is improved, the ablation depth and the ablation mass of the single-pulse laser are small, and the generated specific impulse is high.

The application provides a quenching absorption tower and a separation method of an ammoxidation product containing a nitrile compound, the quenching absorption tower comprises a distribution section, a transition section, a first absorption section and a tower kettle which are communicated from top to bottom; the distribution section comprises at least two third baffles which are distributed at intervals along the axial direction of the quenching absorption tower, a channel is formed between each third baffle and the inner wall of the distribution section, and the channels formed between adjacent two third baffles and the inner wall of the distribution section are arranged in a staggered manner; the distribution section is provided with a first absorption liquid inlet, and the first absorption liquid inlet is located on the side of the channel away from the first absorption section; and the transition section is provided with a second absorption liquid inlet. The quenching absorption tower is used for separating the ammoxidation product containing the nitrile compound, can improve the absorption rate of the nitrile compound and reduce the risk of solidification of the nitrile compound.

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 relates to a pad for reducing the specific absorption rate, SAR reduction pad, (1). The SAR reduction pad (1) comprises a pad body (2), a first surface (3) arranged on one side of the pad body (2), a second surface (4) arranged on another side of the pad body (2) opposite the first surface (3), and distance-generating means (5, 6, 7). The distance-generating means (5, 6, 7) are designed to increase a distance between the first surface (3) and the second surface (4). The invention further relates to a magnetic resonance imaging system, MRI system, (16), comprising MRI electronics, a computing unit (22), and at least one pad for reducing the specific absorption rate, SAR reduction pad, (1) according to the above description. The invention also relates to a method for operating a magnetic resonance imaging system, MRI system, (16).

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 utility model discloses an acetaldehyde absorption device, which comprises a venturi absorber, a separator and a tower type absorption device, the feed end of the venturi absorber is respectively connected into a reactor and a water tank, the discharge end of the venturi absorber is connected with the feed end of the separator, and the tower type absorption device is connected with the discharge end of the separator. A discharging end at the top of the separator is connected with a feeding end at the bottom end of the tower type absorption device. Through multi-stage absorption, the acetaldehyde reaction gas absorption effect is improved, the problems that the absorption tower is easy to block and the filler is easy to replace are solved, the acetaldehyde absorption rate is improved, and meanwhile, the problem of workshop odor is solved.

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.

The present invention relates to a hyaluronic acid film and a method for producing the same, and more particularly to a hyaluronic acid film with excellent percutaneous absorption rate and a method for producing the same. The hyaluronic acid film of the present invention is characterized by having a percutaneous absorption rate of 72 to 93%. The hyaluronic acid film of the present invention is mainly composed of ultra-low molecular weight hyaluronic acid, and has excellent percutaneous absorption rate and mechanical properties, so it can be used in a variety of applications such as cosmetic packs, edible films and patches for medical devices, and health functional foods.

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.