68 results about "Cell parameter" patented technology

The invention discloses a cell morphology dynamic monitoring method and system fused with time sequence image analysis, and the method comprises the steps: firstly obtaining a time sequence image sequence of a cell at a plurality of continuous time points, and extracting an initial feature vector set containing the morphology, size, texture and the like of the cell; inputting the time sequence image into a time sequence image multi-focus fusion model to obtain a fusion feature vector, and forming a refined feature vector through dimension transformation and feature screening; and inputting an improved long-short-term memory network to learn a cell state evolution mode, determining the state of the cell at each time point, generating a change track and predicting a future state. The system comprises an image acquisition and initial feature extraction unit, a time sequence image multi-focus fusion unit, a dimension transformation and feature screening unit, an improved long-short-term memory network unit, a cell state determination unit and a cell state prediction unit, all the units are connected in sequence, image features at different time points are associated through a fusion model, the network is optimized in combination with cell parameters, and the cell state is predicted. The accurate monitoring on the dynamic change of the cell morphology is realized.

The invention belongs to the technical field of chiral material preparation, and particularly relates to a one-dimensional bismuth-based chiral perovskite crystal and a preparation method and application thereof. The general formula of the chiral perovskite crystal is (R-beta-MPA) 2BiI5 or (S-beta-MPA) 2BiI5, the chemical formula of the chiral perovskite crystal is C18H28BiI5N2, the R-beta-MPA represents (R)-(+)-beta-methyl phenylethylamine, the S-beta-MPA represents (S)-(-)-beta-methyl phenylethylamine, the R-beta-MPA represents (R)-(+)-beta-methyl phenylethylamine, and the S-beta-MPA represents (S)-(-)-beta-methyl phenylethylamine. The crystallographic data of the (R-beta-MPA) 2BiI5 include that the crystal belongs to an orthorhombic crystal system and a P212121 space group, and the cell parameters are as follows: alpha is equal to 90 degrees, beta is equal to 90 degrees, and gamma is equal to 90 degrees; the crystallographic data of the (S-beta-MPA) 2BiI5 comprises that the crystal belongs to an orthorhombic crystal system and a P212121 space group, and the cell parameters are as follows: alpha is equal to 90 degrees, beta is equal to 90 degrees, and gamma is equal to 90 degrees.

This invention relates to the field of chemical pharmaceuticals, and more particularly to a mebendazole crystal form and its preparation method. The mebendazole crystal form has a single-crystal structure belonging to the triclinic crystal system; space group Triclinic P; cell parameters a = 6.10 Å, b = 15.69 Å, c = 20.35 Å; α = 94.14°; β = 97.22°, γ = 90.70°, V = 1926 Å. 3 The optimization and development of the crystalline form of p-toluimidazole provided by this invention is of great value.

This application discloses an inorganic compound crystal, its preparation method, and its applications. The inorganic compound crystal has the chemical formula Ga2(OH)(TeO3)(Te2O5)Br, belongs to the orthorhombic crystal system, has a space group of Pca21, and unit cell parameters α=β=γ=90°, Z=4. The inorganic compound crystal is prepared using a hydrothermal method. Under 1064nm laser irradiation, the powder frequency doubling intensity of the inorganic compound crystal Ga2(OH)(TeO3)(Te2O5)Br is 9.8 times that of KH2PO4(KDP), and phase matching can be achieved, indicating its significant potential application value as a nonlinear optical material.

This invention relates to a method for calculating the reference intensity of a crystal phase with an unknown structure and its application. The calculation method does not require complete crystal structure information. The reference intensity of the crystal phase can be calculated based only on the unit cell parameters, unit cell chemical composition, and diffraction intensity or relative diffraction intensity of the diffraction lines. It has high accuracy and does not require additional experimental work, thus providing a basis for quantitative phase analysis using reference intensity information.

A method (200) is disclosed for training a policy ML model to manage a parameter in a cell of a communication network. The method comprises obtaining a training data set comprising, for a plurality of cells, CTR data and a corresponding value of the parameter (210), and converting the CTR data to histograms (220). The method also comprises using the training data set to simultaneously train (230) a CNN to generate a reduced dimensionality latent representation of the histograms, and a DNN to predict values of the parameter from an input comprising the latent representations generated by the CNN. The method also comprises using a Reinforcement Learning process to train a policy ML model to generate control actions for the parameter in a cell from an input comprising a representation of the state of the cell, wherein the cell state representation comprises a latent representation of a histogram of CTR data for the cell, the latent representation generated by the trained CNN.

Cell parameters of the crystal compound are as follows: diffraction data are collected in an omega-theta scanning mode by using MoK alpha rays monochromatized by a graphite monochromator on an Oxford X-ray single crystal diffractometer at the temperature of 273 k, and the crystal compound is characterized in that the crystal belongs to a triclinic system, P-1; the cell parameters are as follows: alpha is equal to 79.857 (3) degrees; beta is equal to 87.082 (3) degrees; gamma is equal to 87.829 (3) degrees; the synthesis method of the crystal chlorine compound (I) comprises the following steps: weighing 0.02 35 g of benzophenone hydrazone and 0.6720 g of 1.0 g of 7-chloroisatin and acetic acid ketone monohydrate complex, putting into a 150mL flask, adding 100.0 mL of chlorobenzene as a solvent, stirring at room temperature for 48 hours, carrying out column chromatography separation, eluting with petroleum ether / dichloromethane (1 / 1), and carrying out vacuum drying to obtain the crystal chlorine compound (I). And naturally volatilizing the collected front component points to obtain the target crystal compound I, namely the 6-bromo-3-diphenylmethylene indoline-2-ketone crystal. The application of the crystal chlorine compound (I) is that the crystal chlorine compound (I) has a relatively strong inhibition effect on epidermophyton flocculent, and the IC50 value of the crystal chlorine compound (I) is 0.063 + / -0.008.

This invention discloses a barium borate crystal, its preparation method, and its applications. The barium borate crystal has the chemical formula Ba₂BeB₂O₆, a non-centrosymmetric structure, belongs to the orthorhombic crystal system, has the space group Pca₂₁, and its cell parameters are α = 90°, β = 90°, and γ = 90°. This barium borate crystal exhibits extremely low birefringence from the ultraviolet to the infrared band, and its extremely low birefringence supports its application on zero-order glass slides.

This invention relates to a method for preparing a nonlinear optical material and its application, specifically a magnesium aminodiacetate dihydrate compound. The molecular formula of the crystal is Mg[NH2(CH2COO)2]·2H2O. The Mg[NH2(CH2COO)2]·2H2O crystal does not have a center of symmetry, belongs to the tetragonal crystal system, has a space group of P-421c, and has cell parameters of α=β=γ=90°, Z=2. The nonlinear optical crystal of this invention has a large frequency doubling effect; at the same time, its ultraviolet absorption edge is 225nm, thus belonging to the tetragonal crystal system, with a space group of P-421c and cell parameters of α=β=γ=90°, Z=2. The nonlinear optical crystal can achieve the second harmonic of Nd:YAG (λ=1.064μm); and it can be predicted that the Mg[NH2(CH2COO)2]·2H2O crystal can be used in the third harmonic generator of Nd:YAG.

The present application relates to the technical field of computers, and relates to a kind of amorphous material atomic structure multiscale automatic analysis method. Including: step S1: with reactant as initial unit, based on first principle molecular dynamics simulation obtains the cluster unit of reaction product;Step S2: the cluster unit is constructed, and its cell parameters and atomic coordinates are optimized using first principle calculation, to obtain cell unit;Step S3: the cell unit is stacked in space, and its cell parameters and atomic coordinates are optimized using first principle calculation, to obtain supercell unit;Step S4: the supercell unit is simulated by first principle molecular dynamics, to obtain accurate machine learning potential function;Step S5: the supercell unit is constructed by cell expansion, and the molecular dynamics simulation is carried out using accurate machine learning potential function, to obtain amorphous material atomic structure;Step S6: steps S1 to S5 are packaged into automation workflow. The method is efficient, and the error is small.

The invention relates to a second-order nonlinear optical material crystal amino methanesulfonic acid as well as preparation and application thereof. The chemical formula of the crystal is O3SCH2NH3, the molecular weight of the crystal is 111.12, the crystal belongs to a monoclinic system, the space group of the crystal is Cm, the cell parameters are alpha = gamma = 90 degrees, beta = 129.7-131.7 degrees, Z = 2, and the cell volume of the crystal is structurally characterized in that the crystalline material is a three-dimensional frame formed by connecting [O3SCH2NH3] elements through hydrogen-bond interaction. The amino methanesulfonic acid crystal material has excellent optical performance, and under 1064nm laser irradiation, the powder frequency doubling intensity is about 3.8 times that of a KH2PO4 (KDP) crystal; under the irradiation of 532 nm laser, the frequency doubling strength of the powder is about 0.7 time of that of the beta-BaB2O4 (BBO) crystal, and phase matching can be realized. Besides, the crystal material has moderate birefringence at 546 nm, the ultraviolet absorption cut-off edge is smaller than 170 nm, and the crystal material has stable physical and chemical properties and has important application value in the photoelectric fields of photoetching, laser frequency conversion, environmental monitoring and the like.

The application provides a compound beta-cesium cadmium silicon sulfur and a beta-cesium cadmium silicon sulfur nonlinear optical crystal and a preparation method and an application, the chemical formula of the compound is beta-Cs2CdSi4S 10 , the molecular weight is 755.04, the chemical formula of the crystal is beta-Cs2CdSi4S 10 , and the molecular weight is 755.04. The crystal belongs to a tetragonal system, the space group is I -4, the cell parameter is a=8.4233(7)Å, c=14.6136(12)Å, and the unit cell volume is 1036.86(19)Å 3 . The crystal is prepared by a vacuum sealing tube method, the frequency doubling effect of the beta-Cs2CdSi4S 10 crystal is about 1.1-1.2 times of that of AgGaS2 (AGS); the band gap of the crystal is 4.21 eV, the ultraviolet cutoff edge is 254 nm, and the infrared transparent range is greater than 8 mu m. The crystal has the advantages of simple preparation process, short growth period, avoidance of raw material leakage and pollution. The crystal has important applications in the fields of atmospheric remote sensing and communication, and can be used for manufacturing frequency down-conversion devices for high-power laser output applications.

The application discloses application of In2Te5 crystal in preparation of a nonlinear optical device in an infrared wave band. The In2Te5 crystal belongs to a monoclinic system, a Cc space group, has a cell parameter of alpha = gamma = 90 DEG, beta = 91.65 DEG, z = 4, and a unit cell volume of 0.56. The In2Te5 crystal can be used as a nonlinear optical material in preparation of a nonlinear optical device, and its frequency doubling coefficient is about 2-3 times of that of a ZnGeP2 crystal and 15 times of that of an AgGaS2 crystal. The infrared transmission range of the In2Te5 crystal can reach 30 microns. The optical birefringence of the In2Te5 crystal can reach 0.56, so the In2Te5 crystal can be used as a good mid-infrared nonlinear optical material, a mid-infrared photoconductive material and a mid-infrared birefringent material, and can be widely applied in various nonlinear optical fields, especially in the nonlinear optical application in the mid-infrared wave band.

The invention relates to the technical field of plastic processing, and discloses a micro-foaming injection molding method and device. The method comprises the following steps: collecting process monitoring data corresponding to a plurality of process states in a micro-foaming injection molding process, and extracting a plurality of nucleation driving characteristics from the process monitoring data; based on the nucleation driving characteristics, predicting the cell nucleation density and the cell average size by using a preset cell growth model to obtain a cell prediction result; calculating a comprehensive deviation value between the cell prediction result and a preset target cell parameter, and based on the comprehensive deviation value, utilizing a preset process response strategy to map and calculate the adjustment amplitude of the melt temperature and the injection pressure, and generating a process correction parameter; and on the basis of the process correction parameters, micro-foaming injection molding execution in injection molding equipment is adjusted, and a micro-foaming injection molded product is obtained. Real-time prediction and dynamic regulation and control of the micro-foaming injection molding process are achieved, and the stability of the forming quality and the production efficiency are improved.

The invention relates to a method for characterizing images of cell cultures in order to quantify cell parameters. The steps of the method comprise detecting at least one cell parameter or cell marker parameter in an image of cells in culture; constructing a mosaic of the image (squares or rectangles, also referred to as tiles); defining an image with smaller dimensions (also referred to as a density map) by integrating values of the cell parameters or cell marker parameters in each fraction of the mosaic; applying deep learning algorithms, which are implemented for example by a convolutional neural network, to the images generated in step c in order to determine a proximity score for the images of treated cells with respect to images of healthy cells or untreated diseased cells.

The application provides a icariin-1,2-dipyridyl ethane co-crystal, and relates to the technical field of crystal drug molecules. The co-crystal uses Cu-K alpha radiation, and the X-ray diffraction spectrum expressed by 2theta has characteristic peaks at 5.00+ / -0.2 degrees, 10.09+ / -0.2 degrees, 10.28+ / -0.2 degrees, 12.41+ / -0.2 degrees, 17.14+ / -0.2 degrees, 23.01+ / -0.2 degrees, 24.43+ / -0.2 degrees, 26.88+ / -0.2 degrees, 27.53+ / -0.2 degrees and 27.60+ / -0.2 degrees. The crystallographic measurement parameters are as follows: triclinic crystal system, space group P-1, cell parameters alpha=104.080(2) degrees, beta=92.0920(10) degrees, gamma=90.1980(10) degrees, cell volume V=0.5937(5) nm3, Z=2, Dc=1.406 g / cm3, F(000)=288, mu=0.152 mm-1, Rint=0.038, R=0.038, wR=0.093, S=1.03, and the related preparation method and application are provided. The icariin-1,2-dipyridyl ethane co-crystal of the application has achieved great improvement in stability and bioavailability.

The invention belongs to the technical field of birefringent crystal materials, and particularly relates to a birefringent crystal and a preparation method and application thereof. The chemical formula of the birefringent crystal is Na6 [ZnF2 (B12O24H6)], the birefringent crystal belongs to a trigonal system, the space group is R-3c, and the cell parameters are alpha = 90 degrees, beta = 90 degrees and gamma = 120 degrees. The crystal belongs to an indirect band gap compound, the band gap of the crystal is 4.10 eV, and the crystal has high thermal stability which can reach 380 DEG C. The birefringence of the crystal is delta n = 0.05 at 546 nm, and the crystal is a potential birefringence crystal material.

The invention discloses a chiral crystal as well as a preparation method and application thereof. The molecular formula of the chiral crystal is C5H14N2I4, the chiral crystal belongs to a monoclinic system, and the space group is P21; the cell parameters of the chiral crystal are as follows: alpha is equal to 90 degrees, beta is equal to 94.75 degrees, gamma is equal to 90 degrees, and Z is equal to 2; or the cell parameters of the chiral crystal are as follows: a = 8.88, alpha = 90 degrees, beta = 94.95 degrees, gamma = 90 degrees, and Z = 2. The chiral crystal not only has huge birefringence performance, but also shows excellent nonlinear optical effect, and can be used for preparing polarization devices and nonlinear optical devices.

The invention discloses a benzoic acid-nicotinamide eutectic crystal for structural characterization and a preparation method of the benzoic acid-nicotinamide eutectic crystal, and belongs to supramolecular chemistry and crystal engineering. The eutectic is formed by benzoic acid and nicotinamide according to the molar ratio of 1: 1 through intermolecular hydrogen bonds, the molecular formula is CHNO, the eutectic belongs to a monoclinic system, the space group is P2 / c, and the cell parameters are as follows: a = 19.4325 (16), b = 4.9956 (4), c = 12.7449 (10), alpha = 90 degrees, beta = 90.946 (7) degrees and gamma = 90 degrees. The invention provides a method for slowly volatilizing and crystallizing a solution. A colorless columnar crystal suitable for single crystal X-ray diffraction analysis can be obtained through growth. The method is simple and convenient in process and good in reproducibility, controllable preparation and structural analysis of the co-crystal are realized for the first time, and a reliable basis is provided for structure-activity relationship research of the co-crystal and solid-state development of drugs.

The invention discloses a reverse design and optimization method for a two-dimensional deformation adjustable mechanical structure, and the method comprises the steps: firstly defining cell geometric feature parameters and carrying out the parametric modeling based on negative Poisson's ratio cells; constructing a finite element simulation database of multiple groups of parameters, and training a neural network proxy model to learn a mapping relationship between parameters and deformation; in combination with a genetic algorithm, performing iterative optimization by taking a root-mean-square error of a control point coordinate as fitness to obtain an optimal cell parameter; a sample piece is prepared through additive manufacturing, the deformation of the sample piece is highly matched with a target curve through tensile test and digital image related technology verification, the design period is greatly shortened, the design precision and efficiency of a complex structure are improved, and the method is suitable for the fields of aerospace, biomedicine, flexible electronics and soft robots. And flexible deformation regulation and control requirements in multiple scenes can be met.

The invention relates to the technical field of image processing, in particular to an automatic quantitative statistical characterization method and device for load-type nanoparticle information, and the method comprises the steps: obtaining a microscopic image of dissolution-type load-type nanoparticles, preprocessing the microscopic image to obtain a processed image, marking the processed image to obtain the position information of each dissolution type supported nanoparticle, thereby determining the particle diameter of each dissolution type supported nanoparticle, and obtaining the metal density and relative atomic mass of the dissolution type supported nanoparticles, the pseudo cubic cell parameters of perovskite and the stoichiometric number of doped elements; and calculating the average number of atoms of the particles based on the particle diameter, the metal density and the relative atomic mass calculation formula, and calculating the average depth of the perovskite material based on the average number of atoms of the particles, the pseudo-cubic cell parameters of the perovskite and the stoichiometric number calculation formula of the doped elements. Therefore, the problems that the number of nano-particles loaded on the base material is large, and manual analysis and statistics are difficult are solved.

This application discloses a fluorinated zirconium phosphate compound, its nonlinear optical crystal, its preparation method, and its applications. The chemical formula of the fluorinated zirconium phosphate compound is Zr(H2PO4)(HPO4)F·nH2O, where 0≤n≤3, and n is an integer. Its nonlinear optical crystal consists of a two-dimensional infinite layered structure formed by [ZrO5F] coordination polyhedra and [HPO4] and [H2PO4] tetrahedra connected by shared oxygen atoms, with interlayer crystal water molecules forming a hydrogen bond network. The nonlinear optical crystal is a non-centrosymmetric crystal; it belongs to the monoclinic crystal system; and its space group is [missing information - likely a specific space group or group]. I 2; The unit cell parameters of a nonlinear optical crystal are a =10.1200(5)Å, b =6.5653(3)Å, c =15.6899(8), β =92.340(5), unit cell volume V =1041.58(9)Å 3 This nonlinear optical crystal possesses deep ultraviolet transparency, a considerable frequency doubling response, and high birefringence, thus meeting the application requirements of nonlinear optical devices. Furthermore, the preparation method has the advantages of simple operation, low cost, low pollution, and low toxicity of the raw materials used.

This invention relates to the field of intelligent linkage control technology, specifically to an intelligent linkage control system and method based on MPCVD process parameters. The system includes: collecting current state data of the MPCVD equipment; constructing a parameter coupling model to analyze the current state data, obtaining a dynamic coupling matrix and parameter evolution prediction trajectory, and generating an optimal control sequence; the parameter coupling model includes a parameter coupling relationship identification unit, a parameter evolution prediction unit, and a multi-parameter collaborative optimization unit; decomposing the first control action in the optimal control sequence into adjustment commands for each actuator, and establishing a timing control scheme based on the response time differences of the actuators; comparing the parameter evolution prediction trajectory with the actual measured parameter response in each control cycle, triggering online adjustment when the prediction error exceeds a set threshold, and incrementally learning and updating the parameter coupling model using the production data from the most recent batch.

The invention provides a dislocation density analysis method and device for single-crystal metal, electronic equipment and a medium, and the method comprises the following steps: providing single-crystal metal, and carrying out diffraction treatment on the single-crystal metal to obtain diffraction peaks of a plurality of crystal faces; carrying out coupling analysis on the diffraction intensity and the diffraction orientation of the diffraction peak to obtain diffraction peak broadening; determining the diffraction vector mode lengths of the multiple crystal faces based on the unit cell parameters of the single crystal metal and the diffraction vectors when the diffraction processing is carried out on the crystal faces; determining the orientation coefficient of each crystal face based on the dislocation line direction of the single crystal metal and the diffraction vector of each crystal face; and linear fitting is performed according to the orientation coefficient, the diffraction vector mode length and the diffraction peak broadening, so that the dislocation density of the single crystal metal is determined by utilizing the fitting slope of a fitting curve. According to the method provided by the invention, the accuracy of the dislocation density is high, and the surface performance of the crystal metal can be truly reflected; the method is suitable for single-crystal metal and polycrystal metal, the application range is wider, and crystal metal body parts are not damaged.

The application discloses a kind of simulation analysis optimization methods and devices of ultra-high voltage insulating sleeve insulation characteristics, and it relates to power equipment technical field.The method uses the method of parameterization modeling, sets the horizontal displacement of center conductor radius, inner shield and the horizontal displacement of ground shield as global variable, avoids repeatedly adjusting ultra-high voltage insulating sleeve two-dimensional model;At the same time, the application uses field calculator function to edit tangential field intensity E m2 Formula is applied in the path of concerned variable, and then the internal insulation structure of ultra-high voltage insulating sleeve is optimized;The device comprises model establishing unit, parameter optimization unit, path setting unit, structure parameter optimization unit and optimal parameter confirming unit connected in sequence.The application improves the simulation analysis efficiency of ultra-high voltage insulating sleeve insulation characteristics, and has great practical significance for the insulation design of high-voltage electrical apparatus.

The application discloses a 5-ALA phosphate monocrystal and a preparation method thereof, and relates to the technical field of monocrystals. The 5-ALA phosphate monocrystal has a crystal structure belonging to a monoclinic system, a space group P121 / c1, and cell parameters including a length a=11.0810 angstrom, b=9.2681 angstrom, c=9.3131 angstrom, an angle alpha=90.00 degree, beta=92.793 degree, and gamma=90.00 degree. Compared with the amorphous / polycrystalline 5-ALA phosphate in the prior art, the crystal form of which is unknown, the monocrystal of the application belongs to the monoclinic system (space group P121 / c1), the cell parameters are clear, the R factor is less than or equal to 0.0384 as determined by single crystal X-ray diffraction, the purity is greater than or equal to 99.5%, and there is no solvent co-crystallization impurity, so that the problem of large performance difference between product batches is solved.

The present application relates to a method and device for reconstructing the grain morphology of a flat polycrystalline sample, belonging to the technical field of material orientation and strain distribution measurement, and solves the technical problem that existing measurement technologies cause irreversible damage to flat samples. The method includes: determining a detection area of ​​a flat polycrystalline sample; performing X-ray diffraction on the detection area to obtain diffraction images of the detection area at different rotation angles and the Bragg angle corresponding to the diffraction spot; determining the crystal plane type and crystal plane normal vector corresponding to the diffraction spot based on the Bragg angle; determining the diffraction spot parameters of the diffraction spot based on the diffraction image; reconstructing the grain morphology of each grain based on the rotation angle, crystal plane type, diffraction spot parameters and prior grain structure data, the prior grain structure data including the diffraction projection data corresponding to each crystal plane of the grain and the unit cell parameters of the grain. The technical solution provided by the present application can obtain the grain morphology of the detection area without sampling from the flat polycrystalline sample, thereby avoiding damage to the flat polycrystalline sample.

This invention discloses a method and apparatus for determining the structure of covalent organic frameworks (COFs) by combining XRD data and artificial intelligence. The method collects information on COF precursors and inputs it into an AI model. A particle swarm optimization heuristic algorithm is used to construct and screen effective COF candidate structures in a global search space. Using crystallographic calculation tools, bond lengths and bond angles are calculated and theoretical XRD patterns are simulated by combining the atomic coordinates, unit cell parameters, and space group information of the effective COF candidate structures. Combining experimental real XRD patterns and the average bond lengths and bond angles from the COF database, a fitness function is defined and calculated to quantify structural differences. Based on the fitness function value, the algorithm iteratively adjusts the structural parameters to generate new structures. This process is repeated until the function value converges or the maximum number of iterations is reached. The structure that meets the conditions is output as the final crystal structure of the target COF. This invention solves the problems of low efficiency, high cost, and low success rate in resolving complex systems in existing technologies.

The application belongs to the field of covalent organic framework materials, and particularly relates to synthesis of a compound, a covalent organic framework material containing bimetal units, a preparation method and use thereof. The structural unit belongs to a hexagonal crystal system P3 space group, and cell parameters are alpha=90°, beta=90°, gamma=120°. Due to the uniqueness of the material structure, the material can be used as a photocatalyst, and can directly perform a gas-liquid catalytic reaction under visible light driving to reduce carbon dioxide into carbon monoxide, with a yield of 320 micromoles per gram ‑1 , and an average of 64 micromoles per gram ‑1 h ‑1 per hour.

This invention relates to a series of malonate borate nonlinear optical crystals, their preparation methods, and applications. The general molecular formula of this series of compounds is AM[C3H2O4]B(OH)3(H2O). x Where A = K, Rb, Cs; M = K, Rb, Cs, x = 0, 1, molecular weight is 242.08–436.72, prepared by room temperature solution method, orthorhombic crystal system, space group P 212121 (No. 19), with cell parameters a = 6.6168(11) - 7.256(3) Å, b = 9.574(5) - 10.271(3) Å, c = 13.0172(12) - 13.984(5) Å. α =90, β =90, gamma =90, Z =4, V=851.3(4)-1042.2(7)Å 3 The series of malonate borate nonlinear optical crystals obtained by this method have advantages such as a wide transmission band, stable physicochemical properties, moderate mechanical hardness, resistance to breakage, and ease of cutting, polishing, and storage. They can withstand 1064nm infrared light incident on AM[C3H2O4]B(OH)3(H2O). x The crystal can produce green frequency-doubled light with a wavelength of 532nm, and the output intensity is about 0.5-1.2 times that of KDP under the same conditions.