203 results about "Diffraction spectrum" patented technology

The invention relates to a polarization spectrum imaging device and a polarization spectrum reconstruction method, in particular to a miniature high-energy-efficiency diffraction polarization spectrum imaging device and a polarization spectrum reconstruction method thereof, and solves the technical problems that an existing polarization spectrum imaging device is low in energy utilization rate and regulation and control precision and large in size. According to the miniature high-energy-efficiency diffraction polarization spectrum imaging device provided by the invention, the diffraction spectrum lens module, the electronic control rheological lens module and the polarization module are directly and compactly integrated by utilizing the macro imaging module, so that the space coupling distance can be reduced, and the imaging quality can be effectively improved; the diffraction spectrum lens module realizes time-sharing spectrum regulation and control through the electronic control rheological lens module, and the polarization module performs area array space division polarization regulation and control, so that 0-degree, 45-degree, 90-degree and 135-degree polarization information under different spectrum channels can be directly obtained, the absorption effect of traditional light filtering on spectrums is avoided, the energy utilization rate is improved, and the energy consumption is reduced. And the number of polarization regions can be reduced, and the regulation and control precision is improved.

Methods of characterizing a sample comprising one or more organic compounds are provided, comprising: receiving a X-ray diffraction spectrum for the sample, and inputting the X-ray diffraction spectrum for the sample into a deep learning model trained using a contrastive learning loss to produce latent space representations such that pairs of input X-ray diffraction spectra assigned a first binary label have latent space representations that are closer to each other than pairs of input X-ray diffraction spectra assigned a second binary label Related methods, products and systems are also described.

The present invention provides a colored resin composition capable of forming high-brightness pixels. The colored resin composition of the present invention contains: (A) a colorant, (B) a solvent, (C) an alkali-soluble resin, and (D) a photopolymerization initiator, wherein the colorant (A) contains a zinc phthalocyanine dye (a1), and in a thin film X-ray diffraction spectrum of the zinc phthalocyanine dye (a1) using CuKα rays after heating at 230°C, the zinc phthalocyanine dye (a1) has a maximum peak in the range of a diffraction angle (2θ) of 2 to 5°.

The embodiment of the invention provides a sodium battery positive electrode material as well as a preparation method, a precursor and application thereof. The sodium battery positive electrode material comprises a sodium-based metal oxide, an X-ray diffraction spectrum of the material comprises diffraction peaks of the following 12 crystal faces: (003), (006), (101), (012), (104), (107), (018), (110), (113), (1010), (116) and (024), and the ratio of the peak area of the diffraction peak of the crystal face (003) to the sum of the peak areas of the diffraction peaks of the 12 crystal faces is less than 25%. The positive electrode material meeting the conditions is high in particle sphericity degree and relatively round and full in structure, so that the material is relatively high in compaction density and relatively good in dynamic performance, and the energy density and the rate capability of the sodium battery are conveniently improved.

The invention discloses an X-ray diffraction spectrum sparse reconstruction method and system based on a dynamic dictionary, and the method comprises the steps: generating an initial dictionary, and carrying out the dynamic optimization and updating of the dictionary, and obtaining a sparse dictionary; selecting an X-ray diffraction scanning angle subset based on the sparse dictionary, constructing an observation matrix, encoding an observation process, and obtaining compressed and sampled X-ray diffraction projection data; and sparse vectors are obtained from the obtained X-ray diffraction projection data after compressed sampling, and a reconstruction spectrum is obtained. And the accuracy of sparse representation is improved. The invention provides a high-throughput XRD (X-Ray Diffraction) material spectrogram analysis method combining dynamic dictionary learning, a compressed sensing theory and deep learning, and aims to improve the analysis efficiency and precision of crystal structure recognition and phase composition in new material research and development.

The invention discloses a solid electrolyte material and a preparation method thereof, a positive electrode active material and a preparation method thereof, a positive electrode sheet, a battery and an electrical device, and relates to the field of battery technology. The solid electrolyte material is a NASICON crystal structure, and in the X-ray diffraction spectrum of the solid electrolyte material, the 2θ value representing the diffraction peak of LiTi2(PO4)3 is reduced by 0.02°-0.06° compared to the 2θ value of the corresponding diffraction peak in the standard spectrum of LiTi2(PO4)3. Thus, the use of the solid electrolyte material can make the battery loaded with it have excellent rate performance.

To overcome the technical problems existing in current ternary materials for lithium-ion batteries, this disclosure provides a ternary material with the chemical formula LiNi. 1‑x‑y Co x Mn y M a O2, wherein 0 < x ≤ 0.1, 0 < y ≤ 0.3, 0 < a ≤ 0.05, and M is selected from one or more of Zr, Ti, Zn, Mg, Ta, V, W, Al and B; the ternary material includes single crystal particles; in the X-ray diffraction spectrum of the ternary material, there are (108) diffraction peaks at a diffraction angle 2θ of 64 ± 0.5° and (110) diffraction peaks at a diffraction angle 2θ of 65 ± 0.5°, and satisfy the following relationship: The ternary material provided in this disclosure has good crystallinity and layered structure stability, thereby enabling the prepared lithium-ion battery to have high cycle life, rate performance and energy density.

Provided are: zinc oxide powders from which a cosmetic capable of exhibiting excellent visible light transmittance and ultraviolet shielding ability when applied to the skin can be prepared; and a composition for an oil-dispersible cosmetic and a cosmetic in which the zinc oxide powders are blended.　Zinc oxide powders according to the present invention are characterized in that D50 in the number distribution obtained from a transmission electron microscope image is 100-200 nm, the aspect ratio is 1.1-1.4, and the crystallite diameter obtained from an X-ray diffraction spectrum is 70-200 nm. Moreover, a composition for an oil-dispersible cosmetic according to the present invention is characterized in that the zinc oxide powders according to the present invention are dispersed in oil. A water droplet-in-oil emulsion cosmetic according to the present invention and an oil droplet-in-water emulsion cosmetic according to the present invention are characterized in that the composition for an oil-dispersible cosmetic according to the present invention is blended or the zinc oxide powders according to the present invention are blended. A powder cosmetic according to the present invention is characterized in that the zinc oxide powders according to the present invention are blended.

This solid electrolyte contains: a molecular crystal that contains an alkali metal salt and an organic molecule which has at least one atom selected from the group consisting of sulfur atoms, oxygen atoms, nitrogen atoms, and phosphorus atoms; and a fluorine-containing polymer. The solid electrolyte has a diffraction spectrum derived from the molecular crystal in X-ray diffraction.

Described is a method of preparing bis (2-hydroxyethyl) terephthalate (BHET) monomer crystals comprising the steps of providing a mixture of BHET monomers and oligomers thereof, a carrier liquid, and impurities; providing BHET seed crystals in the mixture; forming BHET monomer crystals from the mixture comprising the BHET seed crystals, thereby obtaining BHET monomer crystals in a mother liquor; and separating the BHET monomer crystals from the mother liquor; wherein the powder X-ray diffraction spectrum of the BHET seed crystals at least has characteristic intensity peaks at 2Ɵ about equal to 10.7°, 14.4°, 18.9° and 21.6°, where Ɵ is the angle of diffraction, and / or the IR spectrum of the BHET seed crystals at least has characteristic absorption peaks at λ about equal to 3260 cm-1 and 897 cm-1, where λ is the ordinary wavenumber. The obtained BHET monomer crystals have superior filtration properties. Also described is a method of preparing the BHET seed crystals, a method of depolymerizing a terephthalate polymer using the BHET seed crystals, as well as a corresponding reactor system for depolymerizing said terephthalate polymer.

The invention relates to a diffraction spectrum information sensing system and method, in particular to a high-modulation integrated cellulose liquid crystal diffraction spectrum device and a preparation method thereof and a diffraction spectrum information sensing system and method, and solves the technical problems that an existing liquid crystal diffraction spectrum device is narrow in regulation and control wave band and low in integration level. According to the high-modulation integrated cellulose liquid crystal diffraction spectrum device, a diffraction light field in an XY plane is obtained by utilizing the diffraction microstructure of the diffraction micro-area in the cellulose liquid crystal diffraction layer, diffraction spectrum information can be obtained through single imaging of a detector, and the situation that a spectrum is expanded in the Z-axis direction by a traditional diffraction spectrum device is avoided; the detector needs to move many times to obtain complex operation of diffraction spectrum information, moving parts are not needed, the integration degree is higher, and the size is smaller; and meanwhile, the modulation layer can realize dynamic fine regulation and control of the diffraction spectrum, and the regulation and control wave band is wide. According to the diffraction spectrum information sensing system, the space-time modulation of the diffraction spectrum information is realized through the control unit and the additional modulator.

The invention provides a system and method for eliminating secondary diffraction spectrum influence of a grating spectrum system, and belongs to the field of grating spectrums.The eliminating system comprises a second filter, a third filter and double slits, the second filter and the third filter correspond to one slit in the double slits respectively, and the second filter and the third filter correspond to the other slit in the double slits respectively. The central wavelength and the passband width of the second filter plate and the third filter plate are matched with the slit distance of the double slits, separation of a second-level diffraction spectrum and a first-level diffraction spectrum is realized by utilizing the matching and design of the double slits and the optical filters, and the influence of the second-level diffraction spectrum of the grating spectrometer is eliminated. According to the invention, an optical filter does not need to be used for suppressing a secondary spectrum, so that the transmittance of the system is improved, the reflected light of the detector protection glass cannot be reflected by the optical filter to form relatively strong stray light, and the stray light formed by secondary diffraction light is reduced.

The invention discloses a rapid detection method of limestone mineral powder, and belongs to the technical field of road engineering material detection. The rapid detection method comprises the following steps: respectively acquiring a diffraction spectrum and a fluorescence spectrum of a mineral powder sample by using XRD and XRF scanning equipment and an image processing technology; determining mineral composition according to characteristic peaks in an actually measured diffraction spectrogram of the mineral powder sample, and calculating relative mass percent as an index for identifying whether the mineral powder sample is limestone mineral powder or not; the method comprises the following steps: carrying out comparative analysis on a characteristic peak in an actually measured fluorescence spectrum of a mineral powder sample and a standard fluorescence spectrum, and taking the relative mass percent of calcium oxide (CaO), magnesium oxide (MgO) and silicon dioxide (SiO2) in the mineral powder sample as an index for judging the quality of the mineral powder sample. According to the method, the property and the quality of the asphalt mixture mineral powder can be quickly and accurately judged, the operation is simple, effective supervision on the lithology of the rock processed by the limestone mineral powder is effectively realized, and a solid foundation can be laid for subsequently providing a limestone mineral powder quality grading method.

The invention relates to the technical field of batteries, in particular to a battery. The battery comprises a negative plate and an electrolyte, the negative plate comprises a negative electrode active material, the negative electrode active material comprises polyhedral silicon carbon, and the polyhedral silicon carbon comprises a porous carbon matrix and silicon particles located in pores in the porous carbon matrix; the porous carbon matrix comprises mesopores, and the pore volume ratio of the mesopores is 70%-95%; in an X-ray diffraction pattern of the porous carbon matrix, a first diffraction peak exists when 2theta is equal to 0-5 degrees; the electrolyte comprises fluoroethyl acetate, and the content of the fluoroethyl acetate is 25%-60% based on the total mass of the electrolyte. The battery provided by the invention has good low-temperature performance and rate capability.

To overcome the technical problems existing in the prior art ternary material, the present disclosure provides a ternary material, the chemical formula of which is LiNi 1‑x‑y Co x Mn y M a O2, wherein 0 < x ≤ 0.1, 0 < y ≤ 0.1, 0 < a ≤ 0.05, M is selected from one or more of Zr, Ti, Zn, Mg, Ta, V, W, Al and B; the ternary material comprises polycrystalline particles; in the X-ray diffraction spectrum of the ternary material, the (108) diffraction peak at a diffraction angle 2θ of (64±0.5)° and the (110) diffraction peak at a diffraction angle 2θ of (65±0.5)° satisfy the following relationship: The present disclosure provides a ternary material, and the satisfaction of this relationship can ensure that the material has good crystallinity and stability of layered structure, so that the prepared ternary material has high cycle life, rate performance and specific capacity.

The invention discloses a single-crystal single-pixel data acquisition and analysis method based on a neutron time-of-flight technology. The method comprises the following steps: carrying out preliminary orientation on a single crystal to be detected; performing a TOF diffraction experiment on the to-be-detected single crystal, and rotating a diffraction spot of a to-be-detected crystal face to a specified position of a detector according to a preliminary orientation result; screening a target pixel according to single-pixel diffraction data on the detector to obtain a target pixel position and a diffraction spectrum thereof; fitting processing is carried out to acquire interplanar spacing and full width at half maximum of a specific diffraction crystal face of each pixel point; dot matrix strain of different target pixels is calculated, an interplanar spacing distribution diagram, a dot matrix strain distribution diagram and a full width at half maximum distribution diagram of specific crystal faces of the target pixels are drawn, and a mismatch degree distribution diagram can also be drawn for single-crystal high-temperature alloy. The method can be used for extracting the microstructure information of different areas in the diffraction volume of the single crystal material, and has important significance for perfecting the design, preparation and production process and service damage evaluation of the single crystal material and prolonging the service life of the material.

To provide a lead acid battery that can improve heavy load life performance.SOLUTION: A lead acid battery includes a positive electrode plate, a negative electrode plate, a porous film interposed between the positive electrode plate and the negative electrode plate, and an electrolyte, and the porous film contains a resin, in an X-ray diffraction spectrum of the porous film, a ratio expressed as I110 / (I110+I200) is 0.6 or more, where I110 is the integrated intensity of the diffraction peak corresponding to the (110) plane and I200 is the integrated intensity of the diffraction peak corresponding to the (200) plane, and the chemical oxygen demand of the electrolyte is less than 170 mg / L.SELECTED DRAWING: Figure 1

The present invention makes it possible to provide: an intermetallic compound that has exceptional long-time durability while exhibiting excellent catalytic activity at low temperature and exceptional methanol synthesis selectivity in methanol synthesis from CO2 or CO, or an intermetallic-compound-containing substance containing said intermetallic compound; a catalyst in which the same is used; a method for producing methanol; and a method for producing an intermetallic compound or an intermetallic-compound-containing substance containing said intermetallic compound. An intermetallic compound according to an embodiment includes a crystal lattice in which a first metal atom and a second metal atom are present at adjacent positions, and includes the first metal atom and the second metal atom. The first metal atom is Pd; the second metal atom is one or more selected from the group consisting of Zn, In, and Ga; in the X-ray diffraction spectrum before temperature rise desorption measurement, the position of the peak of the intermetallic compound is different from the position of the peak of the first metal atom and from the position of the peak of the second metal atom; and the BET specific surface area is 1 m2 / g or greater.

An object of the present disclosure is to provide a crystalline form of 3-(15-methoxypentadecyl)-2, 4, 4-trimethylcyclohex-2-en-1-one, the crystalline form having excellent stability and being preferable in terms of production. The present disclosure provides a crystalline form having characteristic peaks at diffraction angles) (2θ+0.2° of 7.0°, 14.0°, 17.5°, 19.5°, 21.0°, 23.7°, and 24.8° in a powder X-ray diffraction spectrum (CuKα).

A toner including a toner particle containing a binder resin containing an amorphous polyester A and a crystalline polyester C, and a wax, and a silica fine particle, wherein the content of the crystalline polyester C is within a specific range, the softening point of the amorphous polyester A satisfies a specific relationship, and in an X-ray diffraction spectrum under a specific temperature condition for the toner, there is a peak corresponding to the crystalline polyester C, a wax index AW1 and a crystalline polyester index AC1 of the toner satisfy a specific relationship, the silica fine particle contains a silica fine particle A having a maximum diameter of primary particle in a specific range, and the average coverages of the surface of the toner before and after the toner is treated with hexane with the silica fine particle A satisfy a specific relationship.

In an X-ray diffraction spectrum obtained by an X-ray diffraction method, when the diffraction intensity of a diffraction peak present at a diffraction angle 2 [theta] = 23.50 DEG to 24.00 DEG is set as I1 and the diffraction intensity of a diffraction peak present at a diffraction angle 2 [theta] = 24.05 DEG to 24.55 DEG is set as I2, I1 is the diffraction intensity of a diffraction peak present at a diffraction angle 2 [theta] = 23.50 DEG to 24.00 DEG, and I2 is the diffraction intensity of a diffraction peak present at a diffraction angle 2 [theta] = 24.05 DEG to 24.55 DEG. And (I3 + I4) / (I1 + I2) is 1.60 or more, where I3 is the diffraction intensity of a diffraction peak present at a diffraction angle 2 [theta] = 24.60-25.05 DEG, and I4 is the diffraction intensity of a diffraction peak present at a diffraction angle 2 [theta] = 25.20-26.60 DEG.

The present invention provides: a resin composition comprising a polyimide precursor and a solvent, wherein a cured product obtained by heating the resin composition at 300°C for 60 minutes exhibits a diffraction peak in the range of 5°-15° in an X-ray diffraction spectrum, and the crystallite size derived from the diffraction peak is 30 Å or more; a cured product obtained by curing the resin composition; a laminate comprising the cured product; and a method for producing the cured product.

The present invention relates to the recycling and utilization of lithium-ion batteries, and in particular to a method and system for identifying the properties of solid waste raw materials for lithium-ion battery recycling. When the present invention conducts solid waste identification on lithium-ion battery recycling raw materials, it first obtains the X-ray fluorescence spectrum element spectrum and X-ray diffraction spectrum of the material, extracts characteristic parameters related to the material composition, and adopts a machine learning method to combine the advantages of X-ray fluorescence spectrum and diffraction spectrum to more accurately determine the main components of the material, thereby solving the problem of single instrument analysis in the prior art. Then, a machine learning method is used to determine the source properties of the material, select the applicable product quality standard based on the main components of the material, and further determine whether the material is solid waste based on whether the material meets the requirements of the product quality standard, thereby obtaining results more quickly and accurately.

Disclosed are bioavailable solid state (17-β)-3-Oxoandrost-4-en-17-yl dodecanoate compositions and methods of use in administration to mammals in need of thereof. The (17-β)-3-Oxoandrost-4-en-17-yl dodecanoate is preferably provided in a solid state crystalline form having a plurality of peaks corresponding to the peaks shown in FIG. 2, a plurality of crystallites ranging in size from about 40 nm to about 60 nm based as identified via powder x-ray diffraction spectra, and a melting point in the range of about 51° C. to about 63° C. The compositions may be provided in oral or injectable administration form for the treatment of conditions such as in need of testosterone therapy. An exemplary chemical structure of a (17-β)-3-Oxoandrost-4-en-17-yl dodecanoate composition disclosed herein is as follows:

The present invention relates to a thermoelectric conversion element and an article having the same. The present invention provides a thermoelectric conversion element having a thermoelectric conversion layer containing a thiophene polymer, wherein the X-ray diffraction spectrum of the thermoelectric conversion layer shows a peak intensity at a diffraction angle (2θ) of 7.9° that is at least five times the peak intensity at a diffraction angle (2θ) of 25.8°.

The present invention provides a catalyst and a preparation method and application thereof, wherein the catalyst comprises an active component, wherein the active component contains at least metal elements of molybdenum, bismuth, iron and cobalt; in the X-ray diffraction spectrum of the catalyst, there is a first diffraction peak with 2θ of 26.50±0.2°, a second diffraction peak with 2θ of 29.2±0.2° and a third diffraction peak with 2θ of 28.50±0.2°; the peak intensity I1 of the first diffraction peak and the peak intensity I2 of the second diffraction peak satisfy: 4≤I2 / I1×100≤77, the peak intensity I1 of the first diffraction peak and the peak intensity I3 of the third diffraction peak satisfy: 32≤I3 / I1×100≤274; and the attrition rate of the catalyst is not higher than 2.5%. The catalyst has not only high strength, but also high activity and stability, can effectively prolong the service life of the catalyst, and achieve high conversion rate and yield in the preparation process of unsaturated aldehydes.

The application provides a positive electrode sheet, a battery and an electric device. The positive electrode sheet comprises a lithium iron manganese phosphate material, the X-ray crystal diffraction spectrum of the positive electrode sheet comprises a characteristic peak of a (200) crystal face with 2θ of 17.2±0.5° and a characteristic peak of a (020) crystal face with 2θ of 29.7±0.5°; the average stacking size D(200) on the (200) crystal face, the average stacking size D(020) on the (020) crystal face and the average particle size D 平均 satisfy the following relationships: D(200) / D(020)≥1.15 and 10%≤D(200) / D 平均 ≤30%. The application makes the positive electrode sheet have high lithium ion diffusion rate and cycle stability by special crystal structure and particle size limitation, and further makes the battery have excellent cycle performance and rate performance.

A solid electrolyte containing a molecular crystal and a fluorine-containing polymer, the molecular crystal including an organic molecule having at least one kind of atom selected from a sulfur atom, an oxygen atom, a nitrogen atom, and a phosphorus atom, and an alkali metal salt, the solid electrolyte having a diffraction spectrum derived from the molecular crystal in X-ray diffraction.

The invention relates to a high-crystallization mercury-based II-VI group nanocrystal synthesis method based on an octadecene-amine mixed solvent. The method comprises the following steps: providing a mercury-containing compound as a mercury source; providing a precursor solution capable of releasing II-VI group element anions; octadecene and an amine-containing surfactant are mixed in proportion to serve as a reaction solvent; injecting the precursor solution into a reaction solvent containing a mercury source in an inert atmosphere, and reacting under the condition that the temperature is lower than the thermal injection temperature to generate the mercury-based II-VI group nanocrystal with small size and higher crystal quality; and cooling and purifying the reaction product to obtain the target nanocrystal. By mixing the non-polar solvent and the amine surfactant, the concentration of the surfactant is reduced, the growth rate of the crystal is slowed down, the low-temperature controllable reaction is realized, the nanocrystal of which the particle size is 2-5nm and the crystal quality is remarkably improved is obtained, and the half-peak width of an X-ray diffraction pattern can be less than 0.7 degree (2 theta). The problems that the crystal size is difficult to control and the crystal quality is insufficient in a traditional method are solved.

The invention relates to the technical field of crystal form medicine molecules, and particularly discloses a brexpiprazole-p-toluenesulfonic acid crystal form as well as a preparation method and application thereof. The brexpiprazole-p-toluenesulfonic acid-crystal form disclosed by the invention is radiated by Cu-K alpha, and an X-ray diffraction pattern represented by 2 theta has characteristic peaks at least at 3.2 + / -0.2 degrees, 6.3 + / -0.2 degrees, 9.4 + / -0.2 degrees, 18.6 + / -0.2 degrees and 28.0 + / -0.2 degrees. The purity of the prepared brexpiprazole-p-toluenesulfonic acid-crystal form is higher than 99.9%, and the brexpiprazole-p-toluenesulfonic acid-crystal form has high solubility and good stability. The method is simple in preparation process and has a relatively good industrial application prospect.