402results about How to "Increase supply" patented technology

The invention relates to the technical field of dynamic scheduling, in particular to a dynamic optimization scheduling algorithm for a photovoltaic energy storage system, which is characterized in that based on a working environment of the photovoltaic energy storage system, environment illumination intensity data is acquired in real time, average power generation under the same illumination intensity is extracted, and weather conditions in a future time period of a current region are received through weather forecast data; and predicting the generating capacity in a future period to obtain generating capacity evaluation information. According to the invention, by capturing the environment illumination condition in real time and combining the historical power generation data, the future power generation condition of the photovoltaic system is effectively predicted, the load change of the power grid is monitored in real time, and the influence brought by specific activities is considered, so that timely response can be made when the demand of the power grid fluctuates, and the supply and scheduling of electric energy are optimized; according to the invention, continuous monitoring and abnormity processing are carried out on the power generation equipment, and the abnormal condition of the equipment is handled by correcting the discharge capacity in real time, so that the risk in operation of the energy storage system is reduced, and solid technical support is provided for stable operation of a power grid.

The invention relates to the technical field of crop cultivation, in particular to a water and fertilizer regulation and control method and system for saline-alkali soil grain-feed crops, and the method comprises the following steps: S1, soil preliminary improvement and crop selection: performing preliminary improvement on saline-alkali soil; s2, dynamically predicting, regulating and controlling the soil conductivity: monitoring and dynamically predicting the change trend of the soil conductivity in real time; s3, formulating a water and fertilizer management strategy: formulating the water and fertilizer management strategy; s4, dynamic optimization of saline-alkali soil moisture evaporation: acquiring environmental data in real time, and performing dynamic optimization management on the moisture evaporation process of the saline-alkali soil; s5, crop root health monitoring and feedback regulation and control: identifying salt damage or water and fertilizer absorption obstacles, and adjusting a water and fertilizer management strategy in real time; s6, final-period management and soil ecological restoration, wherein ecological restoration is conducted on the saline-alkali soil. According to the invention, salt damage or water and fertilizer absorption obstacles are identified and solved in time, and healthy growth of crops is further ensured.

The invention belongs to the technical application field of microbial metabolic engineering and synthetic biology, and particularly relates to a pichia pastoris engineering strain for high-yield sclareol as well as a construction method and application of the pichia pastoris engineering strain. The method comprises the following steps: constructing a biosynthetic pathway of sclareol in a host strain, and optimizing an intracellular mevalonic acid metabolic pathway and a central metabolic pathway to obtain an engineering strain A; the host strain is pichia pastoris; or overexpressing or knocking out a metabolism regulation factor in the obtained engineering bacterium A to obtain an engineering bacterium strain B; or, in the obtained engineering bacterium B, a synthetic pathway is targeted to peroxisome and optimized by adopting a cell region compartment strategy, and an engineering bacterium strain C is obtained. The invention provides a pichia pastoris chassis cell for synthesizing a diterpenoid sclareol and an engineering strain for synthesizing sclareol. By introducing and optimizing the expression of a sclareol synthesis pathway, the fermentation yields of sclareol in shake flask batch and bioreactor batch fed-batch fermentation are respectively 631.6 mg / L and 10.5 g / L.

The invention relates to the technical field of comprehensive energy management, and particularly discloses a comprehensive energy optimization scheduling system based on adaptive adjustment, which comprises a solar heat collection module, a heat storage module, a thermoelectric conversion module, a data acquisition module, an intelligent control module and an optimization scheduling module, solar energy is converted into heat energy; the heat storage module is used for storing heat energy generated by the solar heat collection module; the thermoelectric conversion module converts heat energy stored in the heat storage module into electric energy and provides the electric energy for a load. The data acquisition module is responsible for collecting key parameters related to system operation; the intelligent control module adaptively adjusts the operation parameters of the heat collector, the heat storage module and the thermoelectric conversion module to ensure the stable operation of the system; the optimization scheduling module establishes a supply optimization model, optimizes energy supply, establishes a load model, predicts future power load demands, reduces energy waste and improves the energy utilization rate.

The invention relates to the technical field of fertilizer production, and discloses a water-soluble fertilizer formula based on macroelements in gobi regions and a preparation process of the water-soluble fertilizer formula. The fertilizer comprises the following components in parts by weight: 30-50 parts of a nitrogen fertilizer, 40-80 parts of a phosphorus fertilizer, 80-150 parts of a potassium fertilizer, 5-10 parts of a chelating agent, 10-20 parts of a water-retaining agent, 15-30 parts of a soil conditioner, 8-15 parts of a modified composition and 2-5 parts of a trace element composition. Comprising the following steps: S1, raw material pretreatment, S2, mixing and stirring, S3, trace element addition, S4, granulation and drying, and S5, quality detection and packaging. The proportion of the nitrogen fertilizer, the phosphate fertilizer and the potash fertilizer is reasonably adjusted, the special requirements of crops in the gobi region for macroelements are met, the soil structure in the gobi region is effectively improved, the physical property of the soil is improved, and the soil acidity and alkalinity can be adjusted.

The invention provides a 5-hydroxytryptamine Escherichia coli production strain and a construction method and application thereof, the strain is deleted with tnaA, pykA, trpR, ldhA and trpL genes, trpEfbr, aroGfbr, serAfbr, tktA and prsA genes are up-regulated, gdh and glnAfbr genes are heterologously expressed, a pykF gene is dynamically regulated and controlled, and meanwhile, the production strain carries a plasmid pACYC-FYSPD and a plasmid pETDuet-TM2-RBS-AnTDC; the constructed strain has the characteristic of metabolic balance, the expression levels of a tryptophan hydroxylation-decarboxylation system and a coenzyme tetrahydrobiopterin synthesis regeneration system are adjusted by optimizing the expression intensity of key genes of each precursor and simultaneously by virtue of a double-plasmid system, and 5-hydroxytryptamine can be efficiently synthesized in a culture medium without byproducts.

The invention discloses a mechanical arm welding clamp for steel structure machining. Relates to the technical field of manipulator welding fixtures, and comprises workbenches, rotary tables are mounted on both sides of the top surface of the workbenches, rotating shafts are transversely and rotatably connected to the upper ends of the two workbenches, clamping assemblies are arranged at the upper ends of the workbenches, and a moving transmission assembly and a welding assembly are arranged at the rear ends of the workbenches; through cooperation of the hand wheel and the positioning screw rod, the two-way lead screw can be locked conveniently, and therefore the situation that a workpiece is too heavy and cannot be clamped is avoided; through cooperation of a jacking plate and a jacking air cylinder, a servo motor and a driving gear can be conveniently controlled to ascend and descend, then movement of a moving box and rotation of a mechanical arm are controlled, and therefore accurate positioning is facilitated; through cooperation of the first welding gun and the second welding gun, the mechanical arm can make continuous contact with a workpiece for welding or spot welding, so that the welding diversity is improved, and the welding modes of different positions of the workpiece are met; the device meets the requirement that different positions of a workpiece need different welding modes, and the welding efficiency is improved.

The invention relates to an enhanced urban terrestrial heat exploitation system and method based on nanofluid. The system comprises a heat collection pipeline, a heat exchange assembly and a nanofluid adjusting assembly. The nanofluid adjusting assembly is connected into the heat collecting pipeline. The nanofluid adjusting assembly comprises a storage pool, a control unit, a concentration detection sensor, a temperature sensor and a concentration adjusting unit, the concentration detection sensor, the temperature sensor and the concentration adjusting unit are connected with the control unit, the storage pool communicates with the heat collecting pipeline, the concentration detection sensor is used for detecting the concentration of nanofluid in the storage pool, and the temperature sensor is used for detecting the temperature of the nanofluid. And the concentration adjusting unit is used for adjusting the concentration of the nanofluid in the storage tank. Compared with the prior art, the method has the advantages that the fluid concentration in the whole circulation pipeline is adjusted in real time according to the appropriate heat transfer concentration of the hybrid nanofluid at all temperatures, then the heat exchange performance of the nanofluid is effectively guaranteed, and the heat exchange efficiency of the geothermal circulation system is improved.

The invention relates to the technical field of medical apparatus and instruments, in particular to a scar rehabilitation therapeutic apparatus for realizing treatment based on AI evaluation analysis, which comprises a host, an AI evaluation system and a magnetic treatment component, and is characterized in that the host comprises a shell and an electric control system; the AI evaluation system comprises a data acquisition module and a treatment planning module; the data acquisition module is used for acquiring human body scar area information, the treatment planning module identifies data acquired by the data acquisition module, scar information is obtained after the data are identified and processed, and a scar rehabilitation treatment scheme is planned according to the scar information; the electric control system controls the magnetic treatment assembly to perform scar rehabilitation treatment according to the scar rehabilitation treatment scheme; the magnetic treatment assembly comprises a magnetic fixing device, a magnetic driving device and a magnetic patch; the magnetic patch is attached to a human body scar area, and the magnetic driving device executes a scar rehabilitation treatment scheme under the control of the electric control system, so that the magnetic patch rotates and moves.

The invention relates to the technical production field of metabolic engineering and genetic engineering, and particularly provides a uracil production strain as well as a construction method and application thereof. According to the strain, a uridine kinase gene udk is knocked out on an E.coli W3110 genome, and meanwhile, a T7RNA polymerase gene is integrated; the uridine monophosphate kinase gene pyrH is weakened; the method comprises the following steps: overexpressing a carbamyl phosphate synthetase gene carAB, a ribose phosphate pyrophosphate kinase gene prsA, a pyrimidine-5 '-nucleoside enzyme gene ppnN, UMP phosphohydrolase genes umpH and umpG, a ribonucleoside hydrolase 1 gene rihA and a glutamine synthetase gene glnA; an orotic acid nucleoside monophosphate decarboxylase gene pyrF and an orotic acid ribosyltransferase gene pyrE of wild type bacillus subtilis B.subtilis 168 are introduced in a heterologous manner, so that an orotate nucleoside monophosphate decarboxylase gene pyrF and an orotate ribosyltransferase gene pyrE are obtained. The safe, efficient and low-cost production of the uracil is realized.

The invention discloses a natural gas supply device for an industrial furnace, which relates to the technical field of gas supply systems for industrial furnaces, and comprises an annular guide rail which is arranged at the side end of a gas inlet flow regulation and control valve pipe in a sleeving manner and is used for driving an adjusting shaft and an ultrasonic generator to be positioned at the side end of a gas inlet pipeline to carry out ultrasonic frequency emission regulation and control, under the cooperation of the oxygen-containing regulation and control assembly, the oxygen content proportion in the natural gas in the oxygen-containing conveying pipe is rapidly corrected, the precise oxygen content needed by combustion of the industrial furnace is guaranteed, super-uniform mixing of natural gas and oxygen is integrally achieved, the incomplete combustion phenomenon caused by fluctuation of the oxygen content is reduced, and the heating effect and the product quality are improved; and under the cooperation of the ultrasonic adjusting assembly, more complex pipeline impurity conditions can be treated, so that emission parameters and reflection angles of self-adaptive automatic adjustment ultrasonic waves are formed, natural gas conveying is smoother, and therefore the combustion stability and heat efficiency of the industrial furnace are improved.

The invention discloses a carbon flow path tracking method and device. The power network diagram is constructed through the real-time power data, then the carbon emission factor and the carbon flow path of each node are calculated, then the carbon emission of each node is determined, the weight of each transmission path is evaluated according to the carbon emission, and finally the line with the maximum carbon emission in the preset monitoring time period is found out. Therefore, the emission reduction strategy is implemented more effectively, the power resource configuration is optimized more effectively, and the problem that the carbon flow path cannot be tracked accurately in the prior art is solved.

The invention relates to the technical field of wind power equipment, in particular to a metal repairing device and method for bearing abrasion of a wind generating set. The metal repairing device comprises a wind power main shaft, a first mounting part and a second mounting part are arranged on the wind power main shaft, and a bearing seat assembly is arranged on the first mounting part and the second mounting part and comprises a shell; a bearing assembly is arranged in the shell, an air inlet input end, a lubricating grease input end and a lubricating grease extraction end which are connected with the bearing assembly are arranged on the shell, and an electromagnetic part is arranged on the outer side of the shell; the bearing assembly comprises an inner ring arranged on the wind power main shaft, and a retainer is arranged on the outer side of the inner ring; a circulating assembly is arranged in the retainer, rollers distributed in an array mode are arranged on the retainer, an outer ring is arranged on the outer sides of the rollers, the outer ring is fixedly connected with the shell, and a bundling assembly is arranged on the inner side of the outer ring; by arranging the circulating assembly and the collecting assembly, the problem of excessive abrasion between the roller and the roller path due to roller slipping is solved.

The invention relates to the technical field of waste liquid treatment, in particular to a method for efficiently separating nickel, hypophosphorous acid and ammonia from chemical nickel plating waste liquid, which comprises the following steps: S1, nanofiltration: carrying out nanofiltration separation on chemical nickel plating waste water by using a roll type nanofiltration membrane to obtain nickel-containing waste water and waste water containing hypophosphorous acid and ammonia; s2, bipolar membrane electrodialysis: setting an arrangement mode of a bipolar membrane electrodialysis system as follows: sequentially arranging an anode, a first bipolar membrane, an anionic membrane, a cationic membrane, a second bipolar membrane and a cathode, introducing wastewater containing hypophosphorous acid and ammonia into a desalination chamber, and adding deionized water into an acid chamber and an alkali chamber to obtain a hypophosphorous acid solution and ammonia gas; separation of hypophosphorous acid and ammonia is realized; according to the method, hypophosphite and ammonium in the chemical nickel-plating waste liquid are efficiently separated, and the method has important significance on improving the resource utilization efficiency of phosphorus and ammonia in the chemical nickel-plating waste liquid and reducing the treatment difficulty and treatment cost of the chemical nickel-plating waste liquid.

The invention discloses recombinant escherichia coli for producing NMN through fermentation and application of the recombinant escherichia coli, and belongs to the technical field of genetic engineering and biological engineering. According to the invention, nicotinamide phosphoribosyltransferase NAMPT, PRPP synthase BaPRS, transport protein BMpnuC, glucose-6-phosphate 1-dehydrogenase EcZwf, 6-phosphogluconate dehydrogenase EcGnd, fructose-1, 6-diphosphatase II EcGlpX, vitreous hemoglobin enzyme Vhb and NADH transhydrogenase EcSthA are expressed in Escherichia coli, and a pncC gene, a ushA gene, an nadR gene, a purR gene, a pncA gene, an edd gene, an gntR gene, a pfkA gene and a pntAB gene are knocked out, so that the recombinant plasmid is obtained. The accumulation amount of NMN in escherichia coli cells is increased, and fermentation conditions are further optimized, so that the strain can obtain more than 4.9 g / L of NMN at a shake flask level.

The invention relates to recombinant escherichia coli and a method for synthesizing sialic acid lactose-N-tetrasaccharide c, and belongs to the technical field of microbial metabolism engineering. According to the research, engineering escherichia coli BAZ for producing LNTri II is taken as an initial strain, two key glycosyl transferases, namely beta 1, 4-galactosyl transferase and alpha 2, 6-sialyltransferase, and three CMP-Neu5Ac pathway enzymes, namely NeuC, NeuB and NeuA, are introduced, and related competitive genes are knocked out; under the conditions of shake-flask culture and fed batch culture, the LST c yield of 1.718 g / L and the LST c yield of 9.745 g / L are achieved through the engineering bacterium respectively, and the huge potential of a microbial cell factory in the aspect of efficient production of complex breast milk oligosaccharides is shown.

The present invention discloses a pre-test processing device, medical equipment and a detection method, wherein the pre-test processing device includes a tray having at least one limiting groove; a tray fixing fixture having a structure for installing and fixing the tray; a material supply mechanism having a structure for storing materials in batches and transferring the materials one by one to the tray; a test liquid storage mechanism having a group of containers; and an injection mechanism having a structure that can extend into any of the containers to absorb liquid and inject it into the groove of the material on the tray. This solution installs reagent strips by setting a tray, and stores batches of materials through a material supply mechanism and transfers the stored materials to the tray to meet the test needs. Combined with the injection mechanism, the test liquid in the container is automatically injected into the groove of the reagent strip on the tray, which can meet the needs of large-scale and multi-item testing, create equipment conditions for the automation of various tests, and help improve detection efficiency.

The present invention provides a 5-hydroxytryptophan production strain and a construction method and application thereof. The strain has a clear genetic background and is effective in producing 5-hydroxytryptophan. E.coli HTP11 Subtilis subtilis spores pureF bsu K316Q Mutated gene, upregulated strain E.coli HTP11 of guaB , guaA , gmk , ndk The transcription level of the gene was increased by heterologous introduction of the gapX Gene, missing aromatic amino acid transporter serB , tnaB , aroP Gene, up-regulated inner membrane efflux transporter yhjV The transcription level of the gene was increased and electroporated into the pTm-serB plasmid, which could stably provide 5-hydroxytryptophan, the direct precursor of 5-hydroxytryptophan, and had a high efficiency of 5-hydroxytryptophan output.

The invention relates to the technical field of user analysis, and particularly discloses a user portrait construction method and system applied to a vending machine and a medium, and the method comprises the steps: obtaining transaction influencing attribute information of a user and historical interaction records of the user and all vending machines in an analysis range; matching the influence transaction attribute information of the user with an influence transaction attribute feature tag-knowledge base, and determining all influence transaction attribute feature tags of the user; analyzing all personalized transaction orientation feature tags of the user based on historical interaction records of the user and all the vending machines in the analysis range; on the basis of all the transaction attribute influencing feature tags and all the personalized transaction orientation feature tags of the user, consumption behavior feature map portraits of the user for all the vending machines in the analysis range are generated; the method and the device are used for comprehensively and accurately describing a consumption behavior mode of a user and providing powerful support for precision marketing and service optimization.

The invention discloses a head-mounted multispectral device capable of intelligently adjusting and improving sleep, and belongs to the technical field of sleep-aiding physiotherapy, the head-mounted multispectral device comprises two elastic sheets arranged on one side of a shell, a micro spectrometer arranged on one side of the shell, and a transmission unit arranged in the shell and matched with the two elastic sheets, the transmission unit is used for synchronously stretching and moving the two elastic sheets; the elastic support is arranged on one side of the shell, shading cloth is fixed in the elastic support, the shading cloth is used for shading the eyes of a user, an overturning unit matched with the elastic support is arranged on one side of the shell, and the overturning unit is used for adjusting the angle position of the shading cloth; the limiting piece is arranged on one side of the shell, the limiting piece is matched with the transmission unit, and the limiting piece is used for limiting the two elastic pieces; spectral infrared light is used for irradiating eyes, so that sleep quality can be improved, blood circulation can be promoted, immunity can be enhanced, and pain and inflammation can be relieved.

The invention discloses an intelligent moxibustion robot which comprises a moxa stick clamping and moxibustion applying system, a moxa stick pushing and igniting system, a moxa smoke and moxa ash layered filtering system and a cushioning differential moving system. The moxa stick clamping and moxibustion applying system comprises a tail end fixing device, a moxa stick clamping and pushing module, an ash cutting module and an ash storage module; the moxa stick pushing and igniting system comprises a moxa stick cabin, a moxa stick transverse pushing device, a moxa stick longitudinal jacking module and an electric arc igniting module; the moxa smoke and moxa ash layered filtering system comprises a smoke and ash removal device, a ventilation pipeline and a smoke removal fan; the differential moving system comprises a frame-shaped frame, a hub motor and a spring universal wheel. The intelligent moxibustion robot has the functions of differential autonomous movement, automatic moxa stick ignition and replacement, moxa ash removal, moxa smoke filtration and moxibustion application distance and temperature feedback, and can implement autonomous and efficient moxibustion operation.

The invention discloses a method and application for enhancing cytidine production, and belongs to the field of genetic engineering and microbial engineering. The present invention knocks out cytidine deaminase gene cdd, uridine kinase gene udk, pyrimidine-specific ribonucleoside hydrolase gene rihB, nucleotide 5'-monophosphate nucleosidase gene ppnN, pyruvate oxidase gene poxB and integrates and expresses 5'-CTP diphosphohydrolase, orotate phosphoribosyltransferase, uridylate kinase mutant gene PyrH (R92G / D93G), as well as phosphoribosyl pyrophosphate synthetase gene prs, glucose-6-phosphate dehydrogenase gene zwf and 6-phosphogluconate dehydrogenase gene gnd, and constructs a recombinant Escherichia coli with enhanced cytidine synthesis ability, and the cytidine yield reaches 61.9g / L in a 30L fermenter without adding antibiotics and inducers, which can be used to realize the industrial production of cytidine and realize green biomanufacturing.

The invention relates to an overlying strata separation layer grouting working method under the water shortage condition, and belongs to the field of grouting filling coal mining. The method sequentially comprises the steps of design and calculation, grouting passage establishment, water pumping and drainage experiment, stable flow determination, grouting, grouting amount and water pumping amount adjustment, grouting water supply amount recovery and grouting floral tube mode switching. A circulation channel is established in combination with the sandstone layer, water permeating into the sandstone layer in the grouting process can be pumped and flows back into the slurrying station to be recycled when diffusing to a grouting hole channel for pumping water, and the purpose of improving the water source supply amount of a water-deficient mine or in the grouting water-deficient period is achieved.

The invention belongs to the technical field of textile traceability, and particularly relates to a textile traceability method and system based on a block chain, and the method comprises the steps: analyzing the textile data integrity based on a block chain network, judging whether the textile data is complete or not, analyzing the textile traceability access confidence, and judging whether the textile traceability access behavior is credible or not. And analyzing the textile traceability query result, comparing to obtain textile traceability data, analyzing the textile traceability data state, and comparing to obtain a textile traceability data risk point. According to the method, the problems of inaccurate and missing data possibly existing in traditional textile data traceability related information and incomplete judgment of the textile data traceability access verification state are solved, the whole production resume of a product can be restored more accurately, risk points in a supply chain can be found and positioned favorably, and the quality of the product is improved. And a basis is provided for improvement.

The invention provides an electric drive axle lubricating oil quantity control system which comprises a shell, an oil storage cavity is formed in the shell, a transmission shaft is arranged above the oil storage cavity, an oil feeding channel is formed in the transmission shaft, an oil collecting groove is formed in the inner wall of the shell, and the outer side of the transmission shaft is sequentially sleeved with a first rotating body, a second rotating body and a third rotating body in the axial direction. An oil collecting groove is formed in one end of the third rotating body; a plurality of oil slinging pieces are uniformly distributed on the outer side of the transmission shaft in the circumferential direction, the part, located between the first rotating body and the second rotating body, of each oil slinging piece is a radial oil feeding section, and the part, located between the second rotating body and the third rotating body, of each oil slinging piece is an axial oil feeding section; when the transmission shaft rotates, the radial oil feeding section can throw lubricating oil into the oil collecting groove, and the axial oil feeding section can throw the lubricating oil into the oil collecting groove. The second rotating body is connected with an adjusting assembly. The oil level and the lubricating oil supply amount can be adjusted according to the rotating speed of the transmission shaft, and the lubricating effect and the transmission efficiency are both considered at different rotating speeds.

The invention discloses a nuclear power plant water system and a cooling method.The nuclear power plant water system comprises a plurality of series and non-safety-level pools, each series is provided with a safety-level pool, the safety-level pools are communicated pairwise, and each series has a first working condition and a second working condition; the sum of the water quantity borne by any two safety-level pools can be at least used for the system to operate for 3 days under the second working condition. The non-safety-level water pool can at least store water for the system to operate for 27 days under the second working condition. Water resources stored in the non-safety-level water pool and the safety-level water pool can be flexibly allocated to different series according to actual needs, idling and waste of the water resources are avoided, the requirement for the total water storage amount is effectively reduced, and therefore the building and maintaining cost of the water pool is reduced. Reduction of the total water storage capacity of the nuclear power plant means that occupation and consumption of land and water resources in the pool building process are reduced.

The invention relates to the technical field of textile machinery, in particular to a covering yarn device. The upstream side of a core yarn sending-out device of an original core yarn supply unit is provided with a loose feeding device for tension feeding and core yarn loosening, the structural length of a covering yarn supply device needs to be increased, and a control system is complex. A core yarn covering device comprises a core yarn frame structure and a core yarn supply device N of a core yarn supply unit Q. The core yarn supply unit Q comprises a base, a tension controller and a sending-out device, the tension controller can rotate relative to the base to achieve the tension state or the non-tension state of core yarn, and the length of the core yarn is preset when core yarn supply is stopped. When the core yarn is supplied, the tension controller is rotated, and the core yarn with the preset length is sent out through the sending-out device; the tension state or the non-tension state of the core yarn can be achieved through the same structure, the structure is reasonable, control is easy, and the automation degree is high.

The invention discloses a recombinant bacterium and application of the recombinant bacterium in production of benzophenanthridine alkaloid. The synthetic route of the benzophenanthridine alkaloid is divided into a plurality of modules for research, and de novo synthesis of the benzophenanthridine alkaloid is realized through a plurality of strategies, for example, in order to improve the activity of BBE, a new endoplasmic reticulum engineering strategy is developed, so that the yield of a key intermediate S-Soulerine is increased by 3 times; the McDBOX2 is identified as the only reported DBOX gene which plays a role in saccharomyces cerevisiae at present, and the reconstruction of the whole biosynthetic pathway of the benzophenanthridine alkaloid is completed; by carrying out N-terminal truncation operation on DBOX, cytoplasmic expression and endoplasmic reticulum amplification are improved, and supply of a cofactor FAD is increased, so that the yield of benzophenanthridine alkaloid is increased. Experiments prove that the recombinant strain constructed by the invention can be used for efficiently producing benzophenanthridine alkaloid. The method has an important application value.

The invention provides a solar energy and air energy coupled hot water system, a control method and electronic equipment. The solar energy and air energy coupled hot water system comprises a solar heat collector and an air energy heat pump unit. The at least two water tanks are sequentially connected in series, and the first water tank in the at least two water tanks is connected with the solar heat collector and the air energy heat pump unit; the water supply end of the second water tank in the at least two water tanks is used for being connected with a user side; the control device is used for obtaining current time information, first water temperature data t1 of the first water tank and second water temperature data t2 of the solar heat collector. According to the solar energy and air energy coupled hot water system, the technical problem that in the prior art, a solar energy and air energy combined heat supply system cannot fully utilize hot water with the temperature close to the required temperature in the solar heat collector, and therefore the operation efficiency of the system and the use experience of a user are reduced can be effectively solved.

The invention provides a high-yield L-cysteine engineering bacterium accumulated by sulfur donor 3 '-phosphoadenosine-5'-phosphoryl sulfuric acid as well as a construction method and application of the high-yield L-cysteine engineering bacterium. According to the method, the copy number of key genes in a cysteine synthesis route in an escherichia coli organism is changed, heterologous genes are introduced, the expression level of the key genes in the cysteine synthesis route in the escherichia coli organism is enhanced, and sulfur flux is further made to flow to synthesis of L-cysteine. On the basis that the chassis bacteria enhance the carbon flux, in order to maintain the balance of carbon and sulfur in the strain and continuously enhance the synthesis of the sulfur flux flowing to the L-cysteine, the synthesis of the product is promoted by enhancing the synthesis capability of a sulfur donor PAPS in a sulfate pathway, and finally, the plasmid-free and antibiotic-free engineering strain for high yield of the L-cysteine is obtained. Finally, the shake flask titer of the L-cysteine reaches 6.06 g / L and is increased by 49.2% compared with that of an original strain.