294results about How to "Short conversion time" patented technology

The invention relates to an intelligent home appliance control system based on speech identification technology and a wireless sensing network. The intelligent home appliance control system is characterized in that the system comprises a speech identification module and a wireless transmission module based on a Zigbee network; the speech identification module is provided with wireless audio input equipment connected with a PC computer and a speech identification unit; audio input data of a user is received through the audio input equipment, is processed through the speech identification unit and is converted into a corresponding control instruction; the wireless transmission module adopts a Zigbee communication protocol and comprises a serial port communication circuit, a network coordinator, each sub-node and a working state conversion circuit; the control instruction from the user is subjected to data processing through the serial port communication circuit and is used for controlling the corresponding working state of each sub-node; and data information of each sub-node in the network is displayed in the PC computer. The intelligent home appliance control system has safe and reliable operation, convenient installation, simple and convenient use and low power consumption of the system and realizes the controlling intelligence of home appliances.

The invention discloses an enzyme conversion method for preparing gamma-butyric acid. The preparation method comprises employing two mixed acidic amino acids of L-glutamic acid and L-aspartic acid as raw material, mixing the cells of Escherichia.coli AS1.505 with highly active L-glutamic acid decarboxylases and the conversion liquid containing the mixture of L-glutamic acid and L-aspartic acid, implementing enzymatic reaction under the temperature of 28~45íµ, then separating the conversion products by isoelectric point crystallization process or isoelectric point crystallization and ion exchange resin combined method to obtain high purity gamma-butyric acid and L-aspartic acid. The invention solves the problem of the highly effective separation of two acidic mixed amino acids, and obtains gamma-butyric acid with higher additional value, and has advantages of low price, simple operation, short conversion time, and low production cost.

A method, computer readable medium and apparatus for converting color image resolution including inputting an image enlarging ratio, inputting target pixel data of an image in a first color space to be enlarged in a sequence, sampling reference pixels including the target pixel and pixels at least one of which links to the target pixel, and converting the reference pixel data into a second color space data. Other functions include extracting image feature quantities from the reference pixel data, selecting one of a plurality of pixel multiplying methods according to the extracted image feature quantities, multiplying the target pixel by the selected image multiplying method with an integer value based on the input image enlarging ratio, and outputting pixel data that have been generated by the target pixel multiplying step in a sequence.

The invention discloses a method for preparing hydroxytyrosol by boiling and hydrolyzing. The method comprises the following steps of: firstly, preparing plant extract, adjusting pH of the plant extract to be 1-3, and boiling and hydrolyzing the plant extract for 1-4 h under normal pressure; after cooling, adjusting the pH to be 6.8-7.2, filtering and taking supernate; sampling the supernate on macroporous adsorption resin, after adsorbing, washing and removing impurities by using water, eluting by using 10-90% by volume of methanol or ethanol, and collecting eluent; and condensing and recovering the methanol or the ethanol to obtain hydroxytyrosol extract. According to the method disclosed by the invention, the conversion time of the hydroxytyrosol is greatly shortened; the conversion rate is increased; the production cycle is shortened as a whole; the production cost is saved; after hydrolyzing, adjusting to be neutral and placing the sample on a column, the supernate is washed and purified by using water and then eluted by using the methanol or the ethanol; and, instead of placing the sample on the column and eluting by using acid liquid, the disadvantage that resin equipment can be corroded is overcome.

The invention relates to a livestock and poultry house environment monitoring system based on the Internet of Things technology and a working method thereof. The system comprises a monitoring and executing module, a data transmission module, an upper computer monitoring platform 1 and a mobile terminal. The monitoring and executing module is arranged in a livestock and poultry house and comprises a monitoring module 6 and an executing module. The data transmission module is a ZigBee wireless sensing module. The upper computer monitoring platform 1 comprises a real-time display module, a data storage module, a control module and an alarm module. The working method of the system includes the steps of information acquisition, data fusion, fuzzy control and instruction output. An optimal weighted data fusion algorithm is adopted for the data fusion step. The system and the working method thereof have the advantages that the system is supported by the Internet of Things technology and the fuzzy control technology, a ZigBee wireless sensing network, a TCP/IP network and a mobile communication network are fully utilized, and the intelligent livestock and poultry house environment monitoring system is provided. The system achieves access of the mobile phone terminal to ZigBee network monitoring data through an SIM900A module and the upper computer monitoring platform 1.

Disclosed is a method for conveying especially light objects (23, 23.1), particularly empty or full PET bottles. In said method, the object (23, 23.1) is accepted between two claws (5, 6) of claw arms (3.1, 3.2) of a gripping vehicle (2, 2.1, 2.2, 2.3, 2.4) which moves along a rail (1, 1.1, 1.2).

Disclosed are a device and method for the simultaneous fusion of multiple plastic pipe sections. A plurality of pipe sections may be rigidly held, faced off, heated, and joined at the same time using a single piece of equipment. The inventive process allows increased throughput of the fusion process without significant additional costs.

The invention belongs to the technical field of medicine and biology and particularly relates to a method for preparing L-tryptophan by enzymatic conversion. The method, of which L-tryptophan is prepared from mixed amino acids containing L-serine, comprises the following steps: mixing the high-activity genetic engineering bacteria of L-tryptophan synthetase or L-tryptophanase with the conversion solution of the mixed amino acid containing L-serine; carrying out the enzymatic reaction at the temperature of 30 to 45 DEG C; and then, separating the converted products by the isoelectric point crystallization method or the method combining isoelectric point crystallization and ion exchange resin to obtain high-purity L-tryptophan. The method solves the problems of the separation and overall development of L-serine in the mixed amino acids by obtaining L-serine products with wider applicable range and higher added value, therefore, the invention has the advantages of wide material availability, low price, convenient operation, short conversion time, low production cost and the like.

A microbial method by efficient conversion of canrenone belongs to a microbial preparation technology and relates to an efficient-conversion method for producing 11 alpha-hydroxycarvenone by using aspergillus ochraceus as a strain and by high-density culture. By the adoption of the method, problems, such as long production cycle, high cost, low conversion rate and the like, existing in present canrenone microbial transformation technologies are solved. By high-density culture, concentration of thalli in a nutrient solution per unit volume is raised and a high concentration is maintained, high conversion rate is guaranteed, conversion time is shortened, and production costs are greatly reduced. The method provided by the invention lays a foundation for industrial production and is of great significance.

The invention discloses a method for preparing GABA (gamma-aminobutyric acid) by using a biotransformation method, and belongs to the technical field of preparation of GABA. The method comprises the following steps: adopting lactobacillus brevis CGMCC NO.3414 as an original strain; carrying out enrichment culture and thallus collection; resuspending the thallus in a scientifically compounded buffer solution of a mixture of L-sodium glutamate and glutamic acid; adding Na2B4O7.10H2O or MgSO4 having relatively strong activation for the endoenzyme generated by the strain, so as to enable the activity of endoenzyme to be maximally given into play; catalyzing and converting the mixture of L-sodium glutamate and glutamic acid into GABA, wherein the content of GABA in the conversion solution is 45.74-202.18 g/L, the molar conversion rate of the substrate is 95.92-99.75%, and the thallus can be repeatedly used for 8 times. According to the method, the product quality and yield are improved, the environment is protected, the method is relatively good in economic and social benefits and applicable to scale production, and industrial popularization is facilitated.

An apparatus is provided for compensating for such deformations as occur in operation in first and second clamping surfaces intended for a tool in a press. The clamping surfaces are reciprocally moveable towards and away from one another in order to move a first and second part of the tool towards and away from one another, and the first and second tool parts have a first and second abutment surface for abutment against the first and second clamping surfaces and the deformations cause uneven pressure in at least one contact region between the tool and the clamping surfaces. According to the present invention, there is disposed, in at least one contact region between a clamping surface and an abutment surface, a power unit which, on activation, is operative to press, away from the clamping surface located in the contact region at least a part of the abutment surface of the tool located there.

The invention discloses Lactobacilus fermentum, which is classified and named (Lactobacilus fermentum) NXTag-1 and is preserved in China General Microbiological Culture Collection Center, wherein a preservation number of the Lactobacilus fermentum is CGMCC No.2921. The invention also discloses a method for preparing D-tagatose by utilizing the Lactobacilus fermentum, namely a strain is grafted in a sterile culture medium containing a carbon source, a nitrogen source, inorganic salt and water, cells containing L-arabinose isomerase are obtained through the culture, and further D-galactose is transformed into the D-tagatose by adopting the dissociative or immobilized cells. The Lactobacilus fermentum can efficiently transform the D-galactose into the D-tagatose, the concentration of the D-tagatose in a transformation liquid can reach 45g/L, the transformation ratio of the D-tagatose to a substrate can reach more than 50 percent, and no side product generates.

The invention provides a method for simultaneously preparing trehalose and glucolactone. The method comprises the steps that amylase is used for converting starch into maltodextrin; a branch of the maltodextrin is removed, and maltooligosyl trehalose synthase and malt oligosaccharyl trehalose hydrolase are used for obtaining trehalose; glucose oxidase and catalase are fed, and generated glucose is converted into sodium gluconate; saccharifying enzymes are added, after saccharifying is finished, glucose oxidase and catalase continue to be fed for reacting, and when the glucose content is lower than 1 g/L, reacting is finished; enzyme deactivation, decoloration, filtering and impurity removal are carried out. According to the method for simultaneously preparing trehalose and glucolactone, the conversion time of trehalose can be obviously shortened, the conversion rate is obviously increased to be larger than 78%, and meanwhile glucolactone can be produced.

The invention discloses a genetic engineering bacteria used for high efficient production of mycose, and a method used for producing mycose by using the genetic engineering bacteria. Preservation number of the genetic engineering bacteria is CCTCC No.M2013237. The method comprises following steps: A) the genetic engineering bacteria is subjected to fermentation cultivation, and bacterial cells are collected; B) the bacterial cells are broken, MTSase and MTHase are released so as to obtain a water solution containing MTSase and MTHase; and C) amylose or straight-chain dextrin is converted into mycose by using the water solution containing MTSase and MTHase. The genetic engineering escherichia coli is capable of converting amylose or straight-chain dextrin into mycose efficiently; the conversion rate is more than 85%; enzyme cost is low; conversion time is short; technology operation is simple; and large-scaled industrialized application prospect of the method is promising.

The invention discloses a method for preparing a wear-resistant reflective coating. The method includes: preparing a hydroxide sol; dissolving tetraethoxysilane into ethanol, then dropwise adding water, and dropwise adding hydroxide sol to obtain a second sol; preparing a TiO2 sol; stirring the second sol, and dropwise adding a fifth sol and water in the process of stirring to obtain a sixth sol; heating paraffin containing Span 40 in a water bath, dropwise adding the sixth sol into paraffin oil, stirring and filtering to obtain gel particles; sintering the gel particles to obtain reflective glass beads; washing the reflective glass beads, dipping and firing to obtain modified glass beads; adding water-soluble acrylic resin, waterborne polyurethane resin and waterborne alkyd resin into the water, mixing well, adding the modified glass beads, calcined kaolin, diatomite, fumed silica and a silane coupling agent, and evenly mixing; and then adding zinc borate, nano magnesium hydroxide, a toughening agent, an antifoaming agent, an anti-mildew agent and a pigment, and stirring evenly to obtain the wear-resistant reflective coating.

The invention discloses a method for synthesizing betulic acid by carrying out biocatalysis on betulin, comprising the following steps: (1) preparing armillaria luteo-uirens ZJUQH wet cells; (2) adding armillaria luteo-uirens ZJUQH wet cells into ionic liquid or a two-phase system for pre-culture to obtain a pre-culture system; (3) adding betulin solution in the pre-culture system for fermentation culture for 6-24 hours at 25-30 DEG C to obtain transformed culture solution; (4) processing the transformed culture solution to obtain betulic acid. The two-phase system is mixed solvent of ionic liquid and normal hexane, or mixed solvent of ionic liquid and phosphoric acid buffer solution. Compared with a conventional method, the inventive method has higher product yield, shorter catalytic reaction time, simple product separation, lower volatility of ionic liquid system, better biocompatibility and no pollution to the environment.

The invention discloses an adaptive maximum intermediate frequency energy tracking radar receiving system, and the system comprises a radio frequency front end, a triggering board, an intermediate frequency amplifier board, and a radar terminal. The radio frequency front end comprises a low-noise amplifier, a double-balance frequency mixer, and a local oscillator. The triggering board comprises a microprocessor, a programmable gate array, a signal buffering processing module, an analog-digital conversion module, and a digital-analog conversion module. The intermediate frequency amplifier board comprises an energy voltage conversion circuit, a low-noise intermediate frequency amplification circuit, a band-pass filter circuit, a logarithmic amplification detection circuit, and a push output circuit. The radar terminal comprises a terminal processing display module. The invention provides a brand-new receiving system based on maximum intermediate frequency energy tracking, completely changes a mode of automatic frequency control of a conventional navigation radar receiving system, and effectively solves a problem that a conventional mode of frequency tracking causes the decrease of capability of finding a small object because of the frequency spectrum change of a radar transmitter magnetron. The digitalization of the radar receiving system improves the reliability and expansibility of the radar receiving system.

The invention discloses a process for extracting a theaflavin product, and relates to the technical field of the deep processing of tea products. In order to solve the problems of excessive oxidization and low yield caused by the uncontrolled consecutive reaction in traditional in-vitro enzymatic oxidization process for the preparation of theaflavin, the invention provides the process for extracting the theaflavin product, which comprises the following steps of: (a) the preparation of a substrate solution; (b) the preparation of an enzymatic catalyst; (c) the preparation of fermentation; (d) the separation of an ester phase; (e) the concentration and phase inversion; and (f) drying. When the process is adopted, the process control of the fermentation process is realized, the conversion rate and specification of the theaflavin product are improved, and the process cost for the follow-up refining and purification is reduced.

The invention provides a CRISPR-Cas9 system-based genome editing vector and an application thereof, belongs to the field of plant genetic engineering and particularly relates to a CRISPR-Cas9 system-based wheat genome editing vector and an application thereof. A CRISPR-Cas9 transformation vector with higher editing efficiency in wheat is obtained through comparing the gene editing efficiency of the transformation vector of a CRISPR-Cas9 system when adopting different Cas9 promoters, different sgRNA promoters and different sgRNA sequence structures. Through the optimized vector, the gene editing efficiency of the wheat crop by using CRISPR-Cas9 is improved; the problems of low mutation rate of the CRISPR-Cas9 vector in the crops, such as the wheat after transformation and difficulty in obtaining of the CRISPR-Cas9 transgenic mutant strain are solved; the transformation time is shortened; the transformation cost is reduced; a better foundation is laid for popularization and application of a CRISPR-Cas9 gene editing system in the crop.