44results about How to "Increase utilization ratio" patented technology

A polymer electrolyte fuel cell has an MEA-gasket assembly including an MEA having a polymer electrolyte membrane, a pair of catalyst layers, and a pair of gas diffusion electrodes, and a pair of gaskets provided on peripheral portions of surfaces on both sides of the MEA with gaps between the respectively adjacent gaskets and gas diffusion electrodes. A pair of electrically conductive separators is disposed to sandwich the MEA-gasket assembly with groove-shaped cell reaction gas passages on inner surfaces of the separators, each of the cell reaction gas passages running sequentially across a first portion of a respective gasket of the pair of gaskets, a first portion of a respective gap of the gaps, a respective gas diffusion electrode of the pair of gas diffusion electrodes, a second portion of the respective gap, and a second portion of the respective gasket. Each of the gaps is at least partially closed by a closure.

A utilization method and apparatus for guard band, used under the premise that side-channel interference is suppressed when a time division duplex (TDD) system and a frequency division duplex (FDD) system coexist, utilizes guard band effectively and increases utilization rate of mobile communication spectrum resources. The utilization method for guard band comprises: a first base station in a TDD system allocates a first frequency resource within an uplink guard band to a first user equipment and issues resource scheduling information (S1001); the first base station receives the uplink data carried in uplink time units on the first frequency resource, which is sent by the first user equipment according to the resource scheduling information (S 1002); the first base station carries the downlink data in downlink time units and sends the downlink data to the first user equipment on a second frequency resource, the second frequency resource comprises frequency resource in a downlink guard band and / or frequency resource in a TDD band (S1003).

The invention discloses a factory hot recycled asphalt mixture, which comprises the following components in weight percentage: 44-92% of new aggregate, 1-3% of mineral powder, 5-50% of old asphalt mixture and 1.7-3.0% new asphalt binder, wherein the weight ratio of fine material with a particle size of 0-15mm to coarse material with a particle size of 15-25mm in the old asphalt mixture is 0.5-2:1. The invention also discloses its preparation method. The industrial heat-regenerated asphalt mixture of the present invention can save a large amount of asphalt and gravel materials without regenerating agent, save engineering investment, turn waste into treasure, and save energy; In terms of water damage performance, it is not inferior to the fresh asphalt mixture; in addition, the preparation method of the invention can effectively reduce the smoke phenomenon caused by the old material when heated, reduce the pollution to the environment, and has a good environmental protection effect.

The invention discloses a method and device, in a central processing unit of a control device of a pico cell or a macro cell of a heterogeneous network based upon a time division duplex system, for instructing a user equipment to perform dynamic uplink and downlink resource configuration. In the method, the central processing unit indicates whether a dynamic uplink and downlink configuration is triggered for the user equipment by using a bit reserved in broadcast channel signaling; allocates a resource of a sub frame in a frame for downlink control information in physical downlink control channel signaling when the dynamic uplink and downlink configuration is triggered for the user equipment, wherein a location of the subframe in the frame corresponds in a one-to-one manner to a dynamic uplink and downlink configuration type currently adopted for the user equipment, and the location of the sub-frame in the frame indicates a dynamic uplink and downlink configuration type currently adopted for the user equipment; and transmits the physical downlink control channel signaling including the frame to the user equipment.

The invention provides a composite low-carbon ironmaking method based on blast furnace blowing coke oven coal gas. The method takes a blast furnace as smelting equipment, ore layers and coke layers are taken as furnace charge, the furnace charge is loaded into the blast furnace from the top of the blast furnace, and the ore layers and the coke layers are alternately arranged inside the blast furnace; and the coke oven coal gas is blown at a blast furnace tuyere, meanwhile, two sections of blowing at a furnace top circulating coal gas tuyere and a furnace body are carried out, then blast furnace smelting is carried out by adopting high oxygen enrichment, hot air and coal injection operation, and finally molten iron and furnace slag are obtained. According to the method, the blast furnace smelting efficiency can be improved, the energy conversion and utilization inside the blast furnace can be optimized, the coke ratio can be reduced to the maximum extent, and the emission of carbon dioxide can be reduced.

The invention relates to a composition material for bearing, a preparation method and tray application thereof. The composition material for bearing is prepared from a reclaimed material containing fly ash, ferrosilicon ash and polyvinyl chloride as well as fine particle calcium carbonate, wood flour, a stabilizer, a modifier, a foaming agent, a foaming regulator, a first lubricant, a second lubricant and the like added according to need. A tray is prepared by assembling the composition material for bearing. The composition material for bearing has a simple preparation method, low cost, high added value of products and wide application prospects, and can obtain good environmental benefit.

The invention discloses a second-generation sequencing method for dimolecular self-checking library preparation and hybrid capture used for trace DNA ultralow frequency mutation detection. The methodcomprises the following steps: extracting plasma free DNA, performing DNA chemical error repair, preparing a self-checking dimolecular identification code hairpin type joint, repairing plasma free DNA, connecting DNA with the joint, and performing Pre-PCR amplification, excessive hybrid capture, Post-PCR amplification, computer sequencing, data error correction, and mutation analysis and annotation. The method disclosed by the invention can efficiently realize low frequency mutation detection of plasma free DNA. DNA error repair and dual redundancy checking technology can enable the method tohave ultralow false positive rate and high sensitity while detecting trace samples, thus avoiding defects of existing plasma circulating free DNA detection methods, not only realizing cancer mutationdetection and targeted medication guidance, but also realizing early screening of genetic and birth defects of fetus.

The invention discloses a processing and manufacturing method of burley tobaccos. The processing and manufacturing method belongs to a processing method of materials of cigarette products. The processing and manufacturing method comprises the following steps of: soaking the burley tobaccos after threshing, rebaking and fermentation for 18-24 months by using an alcoholic solution with a mass concentration of 70%-90%, enabling a weight ratio between the burley tobaccos and the alcoholic solution for soaking the burley tobaccos to be 1:2-1:10, sequentially conducting ultrasonic processing and distillation on soaked burley tobaccos and the alcoholic solution, and draining the alcoholic solution in the burley tobaccos after distillation, stoving until a moisture content is 11-15%. The processing and manufacturing method is fewer in needed raw materials, low in cost, simple in operation process, easy to grasp and prone to convert into production lines, the burley tobaccos obtained by processing can increase usage amount of the burley tobaccos in a mixed type cigarette by 5-6%, and using ratios of the burley tobaccos are improved. The burley tobaccos processed by the method can replace 3-4% of flue-cured tobacco usage amount of a flue-cured tobacco cigarette, a usable range of the burley tobaccos is expanded, and raw material cost of the cigarette is reduced.

A P2P based method for playing media is provided. The method includes logging in a network; selecting a live broadcasting service or a video-on-demand service, and receiving a judgment result on whether to buffer a data flow corresponding to the live broadcasting service or the video-on-demand service; obtaining the corresponding data flow according to a selection result, and buffering the data flow when the judgment result is yes; and providing the buffered corresponding data flow for a video-on-demand node or a live broadcasting node as a data source of the live broadcasting service or the video-on-demand service.

The invention provides a heating system. The heating system comprises a heat pump unit, an energy storage tank, a phase-change energy storage unit and an indoor heating unit, wherein an outlet of theheat pump unit is connected with an inlet of the energy storage tank; an inlet of the heat pump unit is connected with an outlet of the indoor heating unit; an outlet of the energy storage tank is separately connected with an inlet of the phase-change energy storage unit and an inlet of the indoor heating unit; and an outlet of the phase-change energy storage unit is separately connected with theinlet of the heat pump unit and the inlet of the indoor heating unit. The heating system provided by the invention can greatly increase a utilization rate of off-peak electricity and reduces power consumption of rush hours in the daytime, so that operation cost is greatly reduced; and the heating system adopts various clean energy resources, so that cleaning of heating in winter is further promoted, and air pollution is reduced, and therefore, the heating system is low in energy consumption, and is more energy-saving and environmentally-friendly.

The invention discloses an ultra-large-capacity regional micro-grid system and an operation method thereof. The regional micro-grid system comprises a wind power station, a photovoltaic power station, an energy storage system, a load, power transformation and distribution equipment and a micro-grid energy management system. The wind power station and the photovoltaic power station serve as main power sources of the micro-grid and are used for supplying power to loads in the micro-grid and charging the energy storage system at the same time. The energy storage system is configured on a wind power station side, a photovoltaic power station side and a 110 KV micro-grid user station side, and can be used for stabilizing power output, shifting peaks and filling valleys, adjusting power balance and meeting partial power exchange requirements; the loads are subjected to level-to-level management according to the non-interruptible degree; and the micro-grid energy management system is used for realizing integrated management of production scheduling, coordination control, operation and maintenance management and comprehensive display. The invention aims to explore the innovative utilization mode and development mode of renewable energy sources, improve the utilization ratio of the renewable energy sources and promote the nearby consumption of new energy power.

An alkaline battery according to the present invention is provided with a positive electrode, a negative electrode, and an alkaline electrolyte solution. The negative electrode contains zinc alloy powder, a gelling agent, and an alkaline electrolyte solution. The zinc alloy powder is constituted by a zinc alloy containing 600 to 3000 ppm of aluminum. The zinc alloy powder contains particles with a particle size of 75 μm or less, in a mass ratio of 10 to 40 mass % of all the particles. Furthermore, it is preferable that the negative electrode further contains an indium compound.

The invention discloses a brake disc shell type lamination casting method and a casting mold. The brake disc shell type lamination casting method comprises the following four steps that S1, molding iscarried out, a precoated sand core-making mechanism is adopted as a casting mold made of precoated sand, the casting mold comprises a bottom plate sand core mold, a plurality of appearance sand coremolds and a gate cup sand core mold; S2, clamping laminated core is carried out, the bottom plate sand core mold, a plurality of sets of alternately overlapped outline sand core molds, the shape sandcore mold at the top end and the sprue cup sand core mold are clamped and assembled from bottom to top in sequence, after assembly is completed, and the mold is clamped by a clamp; S3, casting and cooling are carried out; and S4, the clamp is disassembled, the casting mold is removed, and a brake disc finished product is obtained. According to the brake disc shell type lamination casting method, awet mold sand molding technology adopted in the traditional casting process can be completely abandoned, so that the investment cost of a large amount of wet mold sand automatic molding line equipment is saved.

The invention discloses a large temperature difference centralized heating system using power plant waste heat and a work method. A two-stage water-water heat exchanger and a two-stage power drive heat pump unit are arranged in a two-stage net heat exchange station, a circular cooling water waste heat recycling heat exchanger, a circular cooling water waste heat recycling electric heat pump unit,steam-water heat exchanger and a water-water heat exchanger are arranged in a first-stage pipe network heat exchange station, on the premise of ensuring the secondary network normal water supply temperature, water supply temperature of a primary heat network can be greatly reduced, steam consumption of a heat supply system is greatly reduced, and the use proportion of thermal power plant circularwater waste heat is greatly improved. Meanwhile, it is ensured that a secondary pipe network has the normal water supply temperature and water supply and returning temperature difference, the water supply temperature of the primary heat network is reduced to 80 DEG C, the water supply temperature of a secondary pipe network reaches about 70 DEG C, and the normal running flow of the secondary pipenetwork and energy-saving running of the circular water pump are ensured.

The invention discloses a vertical-axis wind turbine blade and a machining method. The machining method comprises the following steps of: obliquely cutting an aluminum alloy plate into strips, wherein an inclination angle is obtained through calculation according to the height and the chord length of a helical blade; machining the aluminum strips into wedges in cross section, wherein the length, the width and the wedge angle of the wedge-shaped cross sections are obtained through calculation through NACA4418 conversion; closely arranging the wedge-shaped aluminum strips in parallel and fixedly connecting the end parts of the aluminum strips through welding or other methods to form a rectangular aluminum plate; curling the aluminum plate into a cylinder by using a plate curling machine, wherein the curling radius is the rotating radius of the required helical blade; detaching the curled aluminum strips and drawing the two ends of the aluminum strips along the axial direction of the cylinder till height-diameter ratio (h / d) is equal to 2.4; and cutting off the aluminum strips into two parts with equal height and slightly grinding edges to the shape of an NACA4418 section to obtain two helical blades. The vertical-axis wind turbine blade and the machining method have the advantages that the problem in machining the complex curved surface of the helical blade is solved, the wind energy utilization ratio in China is greatly improved and the development of the wind power industry is promoted.

The invention relates to a method for preparing a glass ceramic material with high-calcium sulfur-fixing flyash. The actual addition rate of flyash in existing vitrification of flyash of a pulverized coal furnace and preparation of glass ceramic materials is low. The method is characterized by comprising the steps of (1), using high-calcium sulfur-fixing flyash as a main material, adding SiO2 auxiliary material and / or CaO auxiliary material into the main material, and mixing well to obtain a mixture, wherein in the mixture, Al2O3 is <15%, 40%<SiO2<60% and 20%<CaO<45%; (2), adding the mixture into a resistance melting furnace, and melting it into glass melt; (3), water-quenching the glass melt to obtain slag; (4), drying, crushing and grinding the slag to a particle size of 0.5 mm and below, and loading to a refractory mold; (5), nucleating, and crystallizing; (6) demolding, grinding and polishing to obtain the finished product. The solid waste high-calcium sulfur-fixing flyash can be effectively utilized to a maximum extent.

The invention relates to the field of materials, and particularly discloses brick fragments with water treatment plant sludge as a raw material and a preparing method and application thereof. According to the brick fragments, the water treatment plant sludge, hill sand, silicate cement and a non-ionic surfactant serve as main raw materials, recycling of the remaining water treatment plant sludge is achieved, the using ratio of the sludge in the raw materials of the brick fragments is significantly increased, and the problem in the prior art that it is hard to efficiently utilize the water treatment plant sludge is solved. The brick fragments prepared by means of the preparing method are good in durability, have certain skid resistance, water permeability and water storage performance, andcan be used as bricks for side pavements, the drainage performance of the side pavements can be improved, and the brick fragments have certain cooling performance. The bending strength of the preparedbrick bodies is about 3-4 MPa, when the brick bodies need to be abandoned, a crusher can be utilized for crushing, and the brick fragments can be restored to natural soil without furthermore treatment.

The invention discloses a method for preparing sulfuric acid by treating semi-dry desulfurization ash and a high-sulfur iron material through a sintering process. According to the method, semi-dry desulfurization ash, a high-sulfur iron material, quick lime and solid fuel are proportioned, mixed and granulated to obtain a ball material, the ball material is sequentially subjected to material distribution, ignition and sintering, high-sulfur-dioxide-concentration flue gas generated in the middle of a sintering machine in the sintering process is used for preparing sulfuric acid, and meanwhile a sintered material is obtained. According to the method, all-component recycling of the semi-dry desulfurization ash and efficient utilization of the high-sulfur iron material are achieved, sulfur dioxide flue gas generated in the sintering process is concentrated in the middle of the sintering machine and used for preparing sulfuric acid, the content of sulfur dioxide in flue gas generated in other parts of the sintering machine is low, and the flue gas after acid making can meet the emission requirement after being denitrated.

The invention relates to an environment-friendly tree pool cover plate, a side plate and a preparation method and application thereof. The tree pool cover plate is prepared from 40-70wt% of coal ash,25-50wt% of recycled polyvinyl chloride, 0-20wt% of light calcium, 1-3%wt of stabilizer, 0.9-2.5wt% of modifier, 0-1wt% of foamer, 0-5wt% of foaming regulator, 0.1-1wt% of first lubricant and 0.1-1wt%of second lubricant. The environment-friendly tree pool cover plate and the side plate are low in raw material cost, simple in preparation process and high in added value and can be recycled, and good economic benefit can be obtained.

The invention provides a new-energy automobile charging device, a system and a use method. The device is characterized in that the device comprises a charging pile with an umbrella-shaped solar panel,the umbrella-shaped solar panel comprises a worm-shaped main arm, a connector with an inner inclined thread, a short keel, a long keel and a flexible solar panel, the connector is arranged on the main arm, one end of the short keel is hinged to the connector, the long keel is hinged to the other end of the short keel, the flexible solar panel is arranged on the long keel, the bottom end of the main arm is hinged to the top of a charging pile body through an output shaft of an azimuth motor, the structure serves as an output shaft of a worm motor, the flexible solar panel, the azimuth motor and the worm motor are connected with a storage battery of the charging pile, and the azimuth motor and the worm motor are connected with a collector. The charging device can be flexibly started and closed and can adjust illumination angles and charge a new-energy automobile by solar energy, and solar energy and new energy can be maximally utilized as far as possible, energy is saved, and environments are protected.

The invention relates to the technical field of transportation engineering construction, and in particular, relates to modified asphalt as well as a preparation method and application thereof. The modified asphalt is prepared from the following raw materials in parts by weight: 20-80 parts of matrix asphalt, 1.5-6 parts by weight of a polyurethane elastomer, 5-40 parts by weight of waste rubber powder, and 1-5 parts by weight of a sulfur-containing stabilizer. The modified asphalt provided by the invention adopts the components with specific contents, can realize good interaction, has good comprehensive pavement performance, has better high-temperature stability, deformation recovery performance, low-temperature flexibility and low-temperature anti-fatigue durability, and is suitable for seasonal frozen regions. Moreover, the used material source is wide, the waste rubber material is fully utilized, and the utilization ratio of the renewable waste material in the road engineering can be greatly improved, so that the sustainable development of the road engineering can be realized.

The invention relates to a composition material for bearing, a preparation method and tray application thereof. The composition material for bearing is prepared from a reclaimed material containing fly ash, ferrosilicon ash and polyvinyl chloride as well as fine particle calcium carbonate, wood flour, a stabilizer, a modifier, a foaming agent, a foaming regulator, a first lubricant, a second lubricant and the like added according to need. A tray is prepared by assembling the composition material for bearing. The composition material for bearing has a simple preparation method, low cost, high added value of products and wide application prospects, and can obtain good environmental benefit.

The invention provides a control method of an electric hydrogen ammonia comprehensive energy system. The control method comprises the following steps: S0, determining a framework of the electric hydrogen ammonia comprehensive energy system; s1, establishing a model of the electro-hydrogen-ammonia comprehensive energy system; s2, training the model; s3, establishing a constraint condition and a target function based on the trained model; s4, obtaining optimization parameters of the target function through a nonlinear optimization algorithm based on a gradient descent method; and S5, controlling the electro-hydrogen-ammonia comprehensive energy system by using the optimized parameters.

The invention discloses a solid waste composite material, and a preparation method and application thereof. The solid waste composite material comprises, by weight, 58-75 parts of fly ash, 20-37 parts of waste PVC, 1-5 parts of a stabilizer, 1-5 parts of a modifier, and 0.1-1.5 parts of a lubricant, and the stabilizer is a rare earth composite stabilizer. The use amount of the fly ash is larger, and a way is provided for comprehensive utilization of industrial solid waste. The process formula is simple in design, and introduction of complex high polymer materials is eliminated. The raw materials are easy to obtain, the process is simple, and the cost is low. Starting from practice and through actual production verification of the company, an assembly type mold product which can be completely popularized in a marketization mode is obtained. No matter from factory production to actual use on a construction site, and even later recovery, hundred percent cyclic utilization is completely achieved, resources are saved, secondary pollution is avoided, and green and environment-friendly effects are really achieved.

The invention discloses a method for constructing a bacterial strain of which the methyl alcohol tolerance is improved through mutation of a cgl2365 gene and / or a cgl2857 gene in the bacterial strain. The invention also discloses a constructed methyl alcohol biotransformation bacterial strain of which the methyl alcohol tolerance is improved, and a method for carrying out methyl alcohol biotransformation by the bacterial strain. When the bacterial strain constructed by the method disclosed by the invention utilizes a mixed carbon source formed by the methyl alcohol and other auxiliary carbon sources, the use ratio of the methyl alcohol is obviously improved, and therefore, the use efficiency of the bacterial strain for the methyl alcohol is substantially improved.

Embodiments of the present disclosure provide a UE access method, including: a UE receiving information of supported type(s) of respective cell of a base station broadcasted by the respective cell, wherein the information of the supported type(s) of the respective cell comprises UE type(s) supported by the respective cell; and the UE comparing the type of the UE and the UE type(s) supported by the respective cell, and selecting a cell supporting the type of the UE and transmit an RRC connection setup request message to the selected cell, wherein the RRC connection setup request comprises the type of the UE. The present disclosure further provides several other UE access methods and devices. According to the present disclosure, the method and device which can select different access network of different types for different types of users, the user requirement is met and the network utilization ratio is increased.

The present invention provides a frame assembly, which comprises a first frame and a second frame provided to surround the first frame. The first frame and the second frame are configured to support mesh fabric therebetween.