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Method for carrying out RAG index evaluation on RAG system put into production
InactiveCN119621580Aloose requirementsError detection/correctionInference methodsDatabase interfaceEvaluation result
A method for carrying out RAG index evaluation on an RAG system put into production comprises the steps that a test set is prepared in advance, and the content of the test set is lt; an original question and a correct answer gt; a two-tuple list; the RAG index evaluation method specifically comprises the following steps of 1, calling an RAG module interface of a production environment by using an original problem in a test set, and obtaining a model reply and a reference text list; 2, the original question, the model reply, the reference text list and the correct answer form evaluation data according to an input parameter format of an evaluation framework; and 3, calling an evaluation data interface of an evaluation framework by using the evaluation data obtained in the step 2, and generating an evaluation result by the evaluation framework. According to the method, RAG evaluation can be carried out under the condition that a model and a database interface used in a production environment are not provided.
Owner:GUANGZHOU HUAWEI TOMORROW SOFTWARE TECH
Compact superconducting coil heat transfer structure and liquid-helium-free superconducting magnet
ActiveCN116052975Bcompact structureImprove heat transfer efficiencyNMR - Nuclear magnetic resonanceSuperconducting Coils
This invention belongs to the field of nuclear magnetic resonance technology and discloses a compact superconducting coil heat transfer structure and a liquid helium-free superconducting magnet. The compact superconducting coil heat transfer structure, applied to a liquid helium-free superconducting magnet, includes a tubular superconducting coil winding frame. A flattened superconducting coil assembly is wound around the outer surface of the superconducting coil winding frame via grooves. A heat transfer plate is provided on the outer side of the superconducting coil winding frame, and an end-face heat-conducting plate is provided at each end of the superconducting coil winding frame. Each end of the heat transfer plate is connected to the corresponding end-face heat-conducting plate, and a heat transfer metal plate is connected to both end-face heat-conducting plates. The heat transfer metal plate is in contact with the superconducting coil assembly to form a closed heat transfer loop. This invention has a compact overall structure and, through the heat transfer plates, significantly reduces the risk of excitation quench, improving the ease of use and stability of the equipment.
Owner:ALLTECH MEDICAL SYST
Low-water-carbon-ratio methane conversion method and system
PendingCN119461247ALarge amount of processingReduce energy consumptionHydrogenSyngasProcess engineering
The invention provides a low-water-carbon-ratio methane conversion method which comprises the following steps: 1) pretreating first raw material gas, mixing the pretreated first raw material gas with third raw material gas, carrying out first methane conversion reaction, supplementing first oxygen-enriched gas in the reaction process, and reacting to obtain a first-stage reaction product; 2) pretreating a second raw material gas, mixing the pretreated second raw material gas with the first-stage reaction product obtained in the step 1), carrying out a second methane conversion reaction, supplementing a second oxygen-enriched gas in the reaction process, and carrying out a reaction to obtain a second-stage reaction product; the invention further provides a system suitable for the low-water-carbon-ratio methane conversion method, external heat supply is not needed in the methane conversion reaction, energy consumption is reduced, the water-carbon ratio is low, and synthesis gas with the hydrogen-carbon ratio of 0.6-4.0 can be prepared.
Owner:GAOLU AIR PROD & CHEM (SHANGHAI) ENERGY TECH
Cyclic preparation method of spirolactone key material
PendingCN121991152ASignificant technological progressSignificant comprehensive benefitsSteroidsO-Phosphoric AcidThio-
The invention relates to a cyclic preparation method of a spirolactone key material, and belongs to the technical field of medicines. According to the method, resource utilization is carried out on a byproduct compound 2 generated in the production process of a spirolactone intermediate 1, and the byproduct compound 2 is converted into a spirolactone key material compound 1 under the acidic condition. The reaction is carried out in an organic solvent or an aqueous medium, the acidic aqueous solution is selected from hydrochloric acid, sulfuric acid, trifluoroacetic acid, acetic acid, nitric acid or phosphoric acid, the concentration range is 0.1-6 mol / L, the reaction temperature is 0-100 DEG C, the reaction time is 0.5-96 hours, and the feeding molar ratio of the compound 2 to the acid is 1: 0.5-1: 10. The organic solvent can be selected from ethers, alcohols, esters or haloalkanes. The obtained compound 1 can be used as a raw material for preparing spirolactone, and a final product is obtained through an oxygen bridge reaction, an esterification reaction, a decarboxylation reaction, an etherification reaction, a dehydrogenation reaction and a thioation reaction. The method provided by the invention realizes cyclic utilization of production byproducts, improves the utilization rate of raw materials, reduces the production cost, reduces waste discharge, and has a good industrial application prospect.
Owner:ZHEJIANG LANGHUA PHARMA
Process and system for efficiently preparing dimethyl phosphite and control system
PendingCN119462737Areduce dosageAtom utilization is highProcess control/regulationGroup 5/15 element organic compoundsPhosphorous acidDimethyl phosphonate
In order to reduce the use amount of raw material methanol, improve the atom utilization rate and reduce byproduct chloromethane and the like, the invention discloses a process, a system and a control system for efficiently preparing dimethyl phosphite, and belongs to the technical field of synthesis of intermediate dimethyl phosphite of pesticide glyphosate. Wherein water and methanol are jointly used as raw materials (one molecule of water is used for replacing one molecule of methanol), the use amount of methanol is reduced, meanwhile, the byproduct chloromethane is greatly reduced, and the atom utilization rate is increased; a continuous flow reactor, a gas-liquid separator and the like are adopted, so that the whole reaction system is in a state from normal pressure to micro-positive pressure, the negative pressure state of a traditional kettle type continuous reactor is replaced, the reaction system does not need to use a vacuum pump, and the power consumption is greatly reduced; in addition, by controlling temperature, pressure, flow and the like, continuity, orderliness and controllability of the preparation process are guaranteed.
Owner:FUHUA TONGDA CHEM CO LTD +1
Method for preparing vaterite calcium carbonate by submerged supergravity carbonization
The application discloses a method for preparing vaterite calcium carbonate by submerged supergravity carbonization, which comprises the following steps: 1) taking ammonium salt with content of 95% or above, water, wet calcium carbide slag or ground and calcined dolomite for standby; 2) mixing the ammonium salt, water, wet calcium carbide slag or dolomite, heating and continuously stirring, and obtaining calcium-containing filtrate after filtration; 3) passing the calcium-containing filtrate obtained in the step 2) into a liquid submerged supergravity reactor, passing CO2 gas to perform carbonization reaction after the temperature of the material liquid in the supergravity reactor is stabilized, and collecting the calcium carbonate filter cake after filtration, washing and carbonization liquid; 4) mixing the filter cake, water and modifier, heating and beating to modify, and obtaining the vaterite calcium carbonate after filtration, washing and drying. The method does not need to use additional additives in the carbonization process, and the prepared vaterite calcium carbonate has a particle size of 2-5 um and can be stored stably for 30 days or above.
Owner:BEIJING UNIV OF CHEM TECH +1
NiAl catalyst, preparation method thereof and application of NiAl catalyst in preparation of N-ethylaniline
PendingCN119633827Ahigh selectivityThe synthesis process is simpleOrganic compound preparationCatalyst activation/preparationPtru catalystNitrobenzene
The invention discloses a NiAl catalyst, a preparation method thereof and application of the NiAl catalyst in preparation of N-ethylaniline, the NiAl catalyst with high activity and high stability is prepared by adopting a coprecipitation method and optimizing the NiAl proportion and preparation conditions, and the NiAl catalyst is applied to N-ethylaniline prepared by a nitrobenzene one-pot method. According to the present invention, the high conversion rate and the high selectivity from the nitrobenzene to the aniline to the N-ethylaniline are achieved so as to improve the yield of the N-ethylaniline, the problem of more by-products can be overcome, the N-alkylation can be well controlled in the monoalkylation stage, and the method is significantly superior to the traditional N-alkylation route. Meanwhile, the N-alkylaniline is synthesized by a one-pot method in a reaction kettle under the same catalyst and the same reaction condition, so that the synthesis process is simplified, hydrogen and arylamine generated in the reaction process can be removed from the surface of the catalyst in time, the selectivity of the target product N-ethylaniline is improved, the reaction condition is mild, the preparation process is more environment-friendly, and the method is suitable for industrial production. The method has a huge application prospect.
Owner:EAST CHINA UNIV OF SCI & TECH
A method for preparing tantalum carbide coating by CVD and its products
The present invention relates to a method for preparing a tantalum carbide coating by using CVD, wherein a tantalum carbide coating is formed on a substrate surface by chemical vapor deposition using tantalum alkoxide, alkane and hydrogen. The present invention can effectively enable the substrate to obtain excellent high temperature resistance, corrosion resistance and friction resistance, and at the same time has the effect of effectively controlling the overflow of impurity components in the substrate, improving the surface finish and the aesthetics of the product, and realizes large-scale industrial production.
Owner:XIAMEN SINOMA HANGTE TECH CO LTD
A method, device, equipment and medium for displacement measurement based on photoelectric reflection
ActiveCN118857116BSimple structureloose requirementsUsing optical meansConverting sensor output opticallyMicrocontrollerConverters
The present invention relates to a displacement measurement method, device, equipment and medium based on photoelectric reflection, belonging to the field of displacement measurement. The method comprises obtaining a movable measurement medium and evenly and alternately setting bright stripes and dark stripes in the horizontal direction; setting fixed reflective photoelectric switches in parallel in the horizontal direction on one side of the measurement medium, performing displacement measurement by moving the measurement medium in the horizontal direction and outputting a displacement sinusoidal signal; converting the displacement sinusoidal signal into a displacement digital signal by an analog-to-digital converter and transmitting it to a microcontroller unit; and identifying the displacement digital signal by the microcontroller unit and obtaining the displacement of the measurement medium. The present invention realizes concise, efficient and high-precision displacement measurement, and the device is simple and flexible, which is convenient for practical application.
Owner:HANGZHOU LONGSHUO TECH CO LTD
2, 3, 4, 6-tetra-O-trimethylsilyl-D-glucolactone and preparation method thereof
PendingCN119285663Aloose requirementsimprove securitySilicon organic compoundsActivated carbonPtru catalyst
The invention discloses 2, 3, 4, 6-tetra-O-trimethylsilyl-D-glucolactone and a preparation method thereof.The preparation method comprises the steps that S100, raw materials including glucolactone and hexamethyldisilazane are adopted, iodine serves as a catalyst, and a reaction is conducted to obtain a first material; s200, carrying out adsorption treatment on the first material by adopting activated carbon; and S300, carrying out purification treatment on the first material subjected to the adsorption treatment, so as to obtain the 2, 3, 4, 6-tetra-O-trimethylsilyl-D-glucolactone. According to the method, the influence of the catalyst iodine on the color of the product can be thoroughly removed in an activated carbon adsorption mode, and the high-quality finished 2, 3, 4, 6-tetra-O-trimethylsilyl-D-glucolactone product can be obtained.
Owner:ZHEJIANG HUTU PHARMCHEM
Method for preparing fermentation liquor rich in organic acid from garlic syrup
PendingCN119453365AEasy to manufactureloose requirementsAnimal feeding stuffBiotechnologyOrganic acid
The invention relates to the technical field of biological feed preparation, in particular to a method for preparing fermentation liquor rich in organic acid from garlic syrup. According to the method disclosed by the invention, the dominant flora obtained by self-fermentation of the garlic syrup is adopted for fermentation of the organic acid, the garlic syrup containing garlic oil or allicin can be used as a fermentation raw material of the organic acid, allicin removal treatment does not need to be carried out on the raw material, and the preparation process of the organic acid is simplified; the viable count of the fermentation seed solution enriched by the method is high, and higher saccharide conversion efficiency can be realized; the fermentation liquor prepared by the method has higher organic acid content, and the garlic syrup can be processed into a valuable organic acid compound, so that resource utilization is realized.
Owner:CHENGUANG BIOTECH GRP CO LTD
Preparation method of fullerene pyrrolidino quinazolinone
PendingCN122010957AImprove transmission performanceImprove stabilityOrganic chemistryPhotovoltaic energy generationOrganic synthesisEthylic acid
The invention discloses a preparation method of fullerene pyrrolidino quinazolinone, and belongs to the technical field of organic synthesis, namely the field of fullerene derivative synthesis, and the specific method is as follows: fullerene, a 2-aminobenzamide compound and an aldehyde compound are used as reaction substrates, lead acetate and DMAP are used as accelerators, o-dichlorobenzene is used as a solvent, and the fullerene pyrrolidino quinazolinone is prepared through a one-pot reaction. And carrying out one-step thermal reaction in the air to obtain the target product fullerene pyrrolidine quinazolinone. The method is simple in step, the obtained fullerene pyrrolidino quinazolinone derivatives are novel in structure, the variety of fullerene derivatives is greatly enriched, and meanwhile the fullerene pyrrolidino quinazolinone derivatives have good substrate universality and wide application prospects.
Owner:HUBEI UNIV
Wooden door flatness detection device and detection method
ActiveCN119354014BConvenient detection workloose requirementsMechanical roughness/irregularity measurementsGear wheelClassical mechanics
Owner:JINAN ZENGFU WOOD IND CO LTD