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59results about How to "Solve the shortage of resources" patented technology

Method for preparing eucalyptus and poplar mixture material bleached chemical thermomechanical pulp

The invention belongs to the technical field of preparing bleached chemical thermomechanical pulp and in particular relates to a process method for preparing the bleached chemical thermomechanical pulp from eucalyptus and poplar. The process method adopts the eucalyptus and the poplar as raw materials to prepare the bleached chemical thermomechanical pulp; through the addition of a pulp grinding accelerant, the process reduces energy consumption of pulp grinding by 10 to 15 percent compared with the prior process for the bleached chemical thermomechanical pulp, reduces production cost, saves energy and simultaneously reduces the content of pulping fasciculus.
Owner:山东晨鸣纸业集团股份有限公司 +1

Soft soil curing agent prepared by means of industrial residues

The invention discloses a soft soil curing agent prepared by means of industrial residues. The curing agent is prepared from, by weight, 35-65% of steel slag, 30-50% of mineral waste residues, 10-30% of desulfurization gypsum, 2-6% of sulphoaluminate cement clinker, 2-4% of ordinary portland cement clinker, 2-5% of aluminum dregs and 0-5% of cement. The sum of the weight percentages of all the components is 100%. The soft soil curing agent is prepared by fully utilizing industrial residues of heat-engine plants, steel works and aluminum electrolysis enterprises, unconfined compression strength is high during soft soil foundation reinforcement, waste is recycled, and economic benefits and environmental protection benefits are high.
Owner:NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG

MgO-SiC-C refractory material synthesized by forsterite-C and method

The invention relates to MgO-SiC-C refractory material synthesized by forsterite-C and a method. The technical proposal to be adopted is as follows: firstly, forsterite mineral powder and industrial carbon powder are blended according to molar ratio of 1: (1-5); and then the mixture is added with 4 to 10 wt% of bonding agent, stirred or mulled for 10 to 30 minutes, pressed to be formed and dried; and finally under the Ar gas condition, the mixture is sintered in the sintering temperature of 1530 to 1800 DEG C with heat preservation for 2 to 8 hours to obtain MgO-SiC-C refractory material synthesized by forsterite-C. The invention is characterized by comparatively simple processing technique, low producing cost, high producing efficiency, wide raw material source and being capable of reducing energy consumption of high temperature synthesis reaction. The prepared MgO-SiC-C refractory material has the advantages of excellent high temperature performance, anti-corrosion and good durability.
Owner:WUHAN UNIV OF SCI & TECH

Flame-retardant nylon composite and preparation method and application thereof

The invention discloses a flame-retardant nylon composite, which comprises the following components in percentage by weight: 35 to 75 percent of polyamide, 5 to 25 percent of halogen flame retardant, 2 to 10 percent of flame-retardant synergist, 0.1 to 3 percent of lubricant, 0.1 to 1 percent of antioxidant, 0.3 to 3 percent of surface modifying agent and 5 to 35 percent of enhancement modifying agent, wherein the flame-retardant synergist consists of antimonous oxide and aluminum oxide in a weight ratio of (3:7)-(1:1). The invention also discloses a preparation method for the flame-retardant nylon composite and application of the flame-retardant nylon composite. According to the preparation method, the using amount of the antimony sesquioxide is reduced effectively, and a comparative tracking index (CTI) value of the prepared flame-retardant nylon composite can be improved by 50 to 100 V. The flame-retardant nylon composite can be prepared by the conventional equipment and the conventional method, manufacturing equipment is not needed to be transformed, and industrial production is easy to realize.
Owner:上海耐特复合材料制品有限公司

Replenishment method and device, computer readable storage medium and electronic equipment

The invention relates to a replenishment method and device, and belongs to the technical field of warehousing. The replenishment method comprises the following steps of: judging whether any category of cargos satisfies a preset replenishment triggering condition or not, and determining a to-be-replenished amount of the category of cargos when the preset replenishment triggering condition is satisfied; matching a tray and a shelf for storing the category of cargos according to the to-be-replenished amount; mounting a replenishment task of the category of cargos into a task queue of the shelf and determining an execution sequence of the replenishment task in the task queue; and determining an in-storage workstation of the category of cargos according to the execution sequence and replenishing the category of cargos on the tray onto the shelf. According to the method, transportation chain shortage caused by centralized planning and execution of replenishment tasks is avoided, the transportation pressure of transportation chains is reduced and the replenishment efficiency is improved at the same time.
Owner:BEIJING JINGDONG QIANSHITECHNOLOGY CO LTD

Content based access network combining scheme under heterogeneous wireless surroundings

The invention provides a directory-based access network fusion method for heterogeneous wireless environment, wherein the hardware platform comprises a terminal unit (1), a signaling base station (2), N service base stations (3), a core network, Un signaling channels between the terminal unit (1) and the signaling base station (2), Uu service channels between the terminal unit (1) and each service base station (3), Iu signaling channels between the signaling base station (2) and the core network, and Iu service channels between each service base station (3) and the core network. The method comprises the following key steps: directory indexing step, terminal start-up step, service establishment step, directory update step, and mode switching step. The invention incorporates the common access of control signaling, various modes of service communication and directory-based access management strategy, facilitates the selection and switch of communication modes, improves the management logic, coverage flexibility, switch flexibility and access controllability, and provides the extensive support. The invention is a high-efficiency proposal to access network of heterogeneous wireless network.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Limestone machine-made sand dry-mixed mortar and preparation method thereof

The invention relates to a limestone machine-made sand dry-mixed mortar and a preparation method thereof, belonging to the field of building materials. The limestone machine-made sand dry-mixed mortar comprises the following raw materials in parts by weight: 10-25 parts of cement, 5-8 parts of coal ash, 70-85 parts of machine-made sand and 0.06-0.08 part of mortar water-retention plasticizing agents, wherein the machine-made sand is limestone machine-made sand. The limestone machine-made sand dry-mixed mortar disclosed by the invention has the advantages of good cohesiveness, high water-retention rate, high compressive strength, good operability, economy, environmental protection, resource saving and the like, and is a green building material with excellent properties. The preparation method disclosed by the invention is simple and low in cost.
Owner:GUANGXI YUFENG GRP

Underwater concrete containing limestone machine-made sand and preparation method thereof

The invention relates to an underwater concrete containing limestone machine-made sand and a preparation method thereof, and belongs to the field of construction materials. The concrete comprises the following raw materials in parts by weight: 5 to 20 parts of cement, 1 to 7 parts of mineral powder, 0 to 5 parts of coat ash, 35 to 45 parts of broken stone, 30 to 40 parts of machine-made sand, 5 to 8 parts of water, and 0.1 to 0.8 part of water reducer; wherein the machine-made sand is limestone machine-made sand. The concrete has the advantages of good cohesiveness, fluidity, and water retaining performance, high strength, good durability, simple production technology, low cost, and good economic and social profits.
Owner:GUANGXI YUFENG GRP

Transmission control protocol acknowledgement (TCP ACK) message processing method and device and wireless network equipment

The invention provides a transmission control protocol acknowledgement (TCP ACK) message processing method, a TCP ACK message processing device and wireless network equipment. The method comprises the following steps of: judging whether a continuous TCP ACK message exists in a message to be aggregated according to a head of the message to be aggregated; when the continuous TCP ACK message exists in the message to be aggregated, processing the continuous TCP ACK message according to a preset threshold value; and sending an obtained frame aggregation queue into a frame aggregation unit for frame aggregation. By the method, the TCP ACK message in the message to be aggregated is processed specially, and then frame aggregation operation is performed, so that resources which are occupied during frame aggregation of the TCP ACK message can be reduced, and the problem of shortage of wireless air interface resources is solved; particularly, a phenomenon that a cache queue is fully filled because of a TCP ACK attack can be avoided; the transmission quality of the TCP message is improved; the throughput of a wireless network is improved; and under the condition that the frame aggregation depth cannot be improved, the resource utilization rate of the wireless network can be effectively improved.
Owner:RUIJIE NETWORKS CO LTD

Double layer co-extrusion method for extremely micro air-blowing optical cable, and the extremely micro air-blowing optical cable

The invention relates to a double layer co-extrusion method for an extremely micro air-blowing optical cable. The method comprises optical fiber storage, optical fiber coloring, secondary coating, SZ intertwist, an oversheath process and a secondary coating process, wherein PC materials and PBT materials are respectively dried and extruded through different extruding machine units; through different distribution cones and channels in the unit heads, the PC materials are extruded from the inner layer of each loose tube; and the PBT materials are extruded from the outer layer of each loose tube. The double layer co-extrusion method utilizes the PC material and PBT material double layer co-extrusion technology to prepare an extremely micro air-blowing optical cable, and can enable the loose tubes of the optical cable to have the advantages of the two types of materials. By means of accurate control of the technical parameters, the double layer co-extrusion method can realize limit control of the geometric dimension of the optical cable and reduce the external diameter of the optical cable to the minimum theoretically, and has the advantages of being high in intensity of the optical cable, being small in the cable diameter and being light in mass, and is the best choice for air-blowing laying.
Owner:JIANGSU HENGTONG PHOTOELECTRIC

Method for cultivating three-dimensional netlike fast-growing combined big tree

ActiveCN102138449AEffective protectionEffective solution to protectionHorticulture methodsDiseaseGreening
The invention discloses a method for cultivating a three-dimensional netlike fast-growing combined big tree. The method comprises the following steps of: 1, planting one to multiple circles of medium and small-sized arbors (bushes) around a central tree or a central point; 2, inserting, twisting, grafting and binding the branches and stems of the trees from upper, lower, left, right, front, back, inner and outer parts timely and cultivating multiple stages of branched tree crowns; and 3, performing track management such as fertilizer application, disease and insect control, fixed-branch, fixed-stem and oriented trimming, bud picking and the like to grow the three-dimensional netlike fast-growing combined big tree. The method has the advantages that: 1, the problems of resource scarcity of greening big trees and protection of famous wood and ancient trees are effectively solved, the survival rate of greening big trees can be increased by 40 percent, and the resource cost is lowered by 50 percent; 2, the service and growing lives of the greening big trees can be prolonged by at least 2-5 times; 3, the national forest resources and cultural relics can be effectively protected; 4, a novel way for artificial big trees is opened; and 5, the three-dimensional netlike fast-growing combined big tree has the comprehensive characteristics of singularity, culture, artistic quality, technicality, very high ornamental value and greening value, and the like. The exquisite special effect of the big tree contributes to urban development and progress of green ecological civilization.
Owner:罗红

MgO-SiC-C material synthesized by forsterite-C and method for preparing same

The invention relates to an MgO-SiC-C material synthesized by forsterite and C and a method for making the same. The method adopts the following technical proposal that: according to molar ratio, 1 to 4 mol of forsterite mineral powder and 3 to 6 mol of C powder are mixed, and a bonding agent occupying 4 to 10 percent of the mass percentage content of the mixed materials is added; the mixture is stirred or ground for 10 to 30 minutes, and is dried after press forming; then, sintering is carried out under a reducing atmosphere at a temperature of between 1,450 and 1,700 DEG C with the heat preservation time of between 2 and 8 hours, thereby obtaining an MgO-SiC-C composite material. The industrial carbon powder raw material adopted by the method has wide sources, and the forsterite mine has abundant resources, thereby not only effectively solving the problem of magnesia resource shortage, but also having low production cost; moreover, the made MgO-SiC-C composite material can maintain excellent properties and reduce corrosion wear, thereby prolonging service life.
Owner:WUHAN UNIV OF SCI & TECH

Electric union controlled parking lock combined with Internet of things based on Zigbee

The invention relates to the technical field of parking lock, particularly to an electric union controlled parking lock combined with Internet of things (IoT) based on Zigbee. The electric union controlled parking lock includes a bottom shell and an annular car stop lock, wherein the bottom shell is provided with a driving motor which is connected with a torque spring by a transmission rod; the driving motor is also connected with a rechargeable battery; two ends of the torque spring are respectively connected to two ends, at one side, of the annular car stop lock; and the bottom shell is provided with a Zigbee module, a bluetooth module and a GPS module. Adopting an electric parking lock as a fundamental hardware and combining with IoT, the bluetooth module and the GPS module, the electric union controlled parking lock uses the mobile app and the remote control and management system to realize the functions, in a cloud networking way, of online parking space reservation, parking space discovery, online parking space leasing, unlocking and locking control of the electric parking lock and cloud payment of parking fees, thereby solving the imbalance between supply and demand of the shortage of public parking spaces and the shortage of parking spaces and difficulty of parking in the congested road.
Owner:登士柏节能科技无锡有限公司

Method for coking with non-coking blind coal

The invention provides a method for coking with non-coking blind coal. The method includes mixing 5-15wt% of non-coking blind coal with Rmax ranging from 2.0% to 2.5%, 15-25wt% of coal with Rmax ranging from 0.6% to 0.9%, 25-35wt% of coal with Rmax ranging from 0.9% to 1.2% and 35-45wt% of coal with Rmax ranging from 1.2% to 1.5% uniformly; feeding the above raw materials into a coke tamping furnace, coking for 25-28 hours under conditions that machine-side temperature ranges from 1325 DEG C to 1335 DEG C, coke-side temperature ranges from 1330 DEG C to 1350 DEG C, coke cake center temperature ranges from 950 DEG C to 1050 DEG C, pressure of an observation hole ranges from 4Pa to 10Pa, pressure of a gas collector pipe ranges from 95Pa to 120Pa and suction force of a flue distribution duct ranges from 235Pa to 255Pa, and obtaining cokes meeting requirements of a blast furnace for iron making. By the method for coking with non-coking blind coal, resources of coking coal are enriched, and the problem that coke quality is rapidly deteriorated due to non-coking blind coal is effectively solved.
Owner:YUNNAN COAL & ENERGY

Resource scheduling system based on internet-of-things technology and scheduling method thereof

The invention discloses a resource scheduling system based on an internet-of-things technology and a scheduling method thereof. A managing end is relied on the internet of things, and a temporary resource end is scheduled according to the shortage condition of fixed resources so as to balance the shortage of the resources. The system and method provided by the invention have the advantages that an effective software system is used for scheduling and managing temporary scattered resources so as to solve the problem of the shortage of the resources in a specific time period, and the temporary resources are scheduled, managed and monitored by virtue of the internet-of-things technology so as to ensure sequential proceeding and maximized reasonable application and enhance economic benefit and social benefit.
Owner:INTEBYTE ZHENJIANG

MgO-SiC-C fire resistant pouring material based on forsterite and method for preparing same

The invention relates to a MgO-SiC-C fireproof casting material based on forsterite-C and a preparation method thereof. In the technical proposal, forsterite and C powder are mixed according to the mol ratio of (1 to 4) to (3 to 6), and a binder of 1 to 10 percent of the mixture by weight is added. After the mixture is beaten, moulded and dried, the mixture is synthesized into MgO-SiC-C material for two to eight hours at the temperature of 1450 to 1700 DEG C under the reducing atmosphere. 10-25 weight percent of 10-5mm granule, 15-25 percent weight of 5-3mm granule, 15-25 weight percent of 3-1mm granule, 10-20 weight percent of 1-0mm granule, 25-35 weight percent of 0.1-0mm fine powder are mixed with 2-8 weight percent of the binder, and are beaten uniformly, thus getting the MgO-SiC-C fireproof casting material. The manufacturing cost of the invention is low; the process is simple; and the fireproof casting material prepared has good performance, and is widely applied.
Owner:WUHAN UNIV OF SCI & TECH

Reuse method for automobile body controller MCU port

The invention discloses a reuse method for an automobile body controller MCU port. The reuse method is characterized in that the P2.2 port of an automobile body controller MCU is connected with an ACC detection circuit and a BEEP sound output circuit at the same time, the BEEP sound output circuit is connected with a power amplification circuit, and the P2.2 port is used for ACC detection, high-low voltage detection and button BEEP sound output respectively. The reuse method has the advantages that one port of the automobile body controller MCU is used for achieving ACC detection, high-low voltage detection and button BEEP sound output at the same time, so that the problem that the port resource of the MCU is scarce is solved, and the automobile body controller MCU of existing automobiles can be improved, so that the condition is provided for arranging automobile-mounted electronic products on the automobile body controller MCU.
Owner:WUHU HONGJING ELECTRONICS

Distributed resource allocation method in horizontal dynamic cloud alliance

The invention discloses a distributed resource allocation method in a horizontal dynamic cloud alliance. The method includes that a local cloud provider sets an initialized tentative resource price according to demands of the local cloud provider for resources and sends the information of the initialized tentative resource price to various cooperative cloud providers, the cooperative cloud providers enter into a competing iterative stage, the cooperative cloud providers calculate the quantity of resources which can be provided by each cooperative cloud provider and send the information of the quantity of resources to the local cloud provider according to the resource price information sent by the local cloud provider and conditions of each cooperative cloud provider, the local cloud provider calculates the total quantity of resources supplied by the cooperative cloud providers according to a received feedback message and judges whether the calculated total quantity of supplied resources is equal to the quantity of resources required by the local cloud provider or not, if the calculated total quantity of supplied resources is equal to the quantity of resources required by the local cloud provider, the competing iterative stage is stepped out, and if the calculated total quantity of supplied resources is not equal to the quantity of resources required by the local cloud provider, the local cloud provider adjusts the resource price according to a certain rule.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Culture method for thesium chinense tissue culture vessel seedlings

InactiveCN105580737AGuaranteed seedling rateAvoid rooting culture and transplantingPlant tissue cultureHorticulture methodsBiologyCulture mediums
The invention discloses a culture method for thesium chinense tissue culture vessel seedlings. The culture method includes the steps that tender and strong branch blades of wild thesium chinense plants in spring are selected as explants, a callus tissue induction medium is inoculated with the explants to generate callus tissue through culture and induction, and after 3 weeks, the callus tissue generated through induction is transferred to a fresh culture medium to be subcultured; the callus tissue obtained through subculturing is proliferated in a light culture differentiation mode to the 30th day, and an MS solid culture medium is used for induction culture for 15-20 days to obtain the thesium chinense root-free seedlings; the induced root-free seedlings are cut into single seedlings, a proliferation culture medium is inoculated with the single seedlings, and the proliferation coefficient is 8.5 by means of 26-day culture. The thesium chinense root-free seedlings obtained through rapid proliferation are thin and need strong seedling culture, after strong seedling culture is conducted for 15 days, blades are thickened and widened, stems are thickened, the seedlings are strong and normal in color, the culture medium attached to the stem base is washed away, and the seedlings are spread and cooled for 3 days to serve as kaempferol extract raw materials. The culture method has the advantages of being high in proliferation speed, short in production cycle and capable of realizing large-scale production, being not limited by seasons, achieving continuous production and not occupying cultivated land.
Owner:GUIZHOU EDUCATION UNIV

Soil stabilizer

The invention discloses soil stabilizer, which consists of industrial waste and chemical reagent, wherein the industrial waste consists of ground steel slag, coal gangue powder after being spontaneously-combusted, grain slag or furnace slag, the chemical reagent consists of calcium oxide, powder grinding aid and sodium sulfate, wherein the mass ratio of the industrial waste and the chemical reagent is 7: 3, and the fineness of the stabilizer powder is brinell specific surface area 500 to 900 m<2> / kg. The soil stabilizer has beneficial effects that mixture of the industrial waste is adopted as raw materials, so that the environmental pollution caused by the industrial waste can be solved; the original chemical activity of the mixture is used for rapidly condensing and solidifying the soil and sand, and no other surface active agent and alkaline excitant is needed, so that the cost is remarkably reduced, simultaneously the construction speed is fast, and the delivery period can be shortened; and the soil stabilizer is widely applied to the dam crest solidification and slope protection of foundation layers of road engineering and hydraulic engineering and is free from being restricted by any environment.
Owner:YANAN HUIHAI BUILDING ENG

Health food with immunity boosting function and preparation method thereof

The invention discloses a health food with an immunity boosting function and a preparation method thereof. The health food is prepared by mixing the following components in parts by weight: 30-50 parts of cordyceps sinensis mycelium powder, 30-50 parts of epimedium extract and 5-20 parts of rhizoma polygonati extract. The preparation method comprises the steps of: preparing the cordyceps sinensis mycelium powder by using a deep fermentation method, preparing the epimedium extract and the rhizoma polygonati extract by using a conventional method, weighing and mixing the raw materials according to proportion by weight, and preparing a pharmaceutical drug such as particles, tablets or capsules by using a conventional preparation technology. In allusion to the functional components in different raw materials, different preparation methods are used and a membrane separation technique is used in the aspects of separation and purification of polysaccharide. According to the technology, the prepared product has remarkable health efficacy, the process is easy in operation and the industrial production cost can be effectively reduced.
Owner:吉林修正药业新药开发有限公司

Method for coking with high-viscosity high-volatility steam coal

The invention provides a method for coking with high-viscosity high-volatility steam coal. The method includes mixing 5-13wt% of coal with Rmax ranging from 0.7% to 0.8%, 10-15wt% of coal with Rmax ranging from 0.6% to 0.9%, 15-25wt% of coal with Rmax ranging from 0.9% to 1.2%, 20-50wt% of coal with Rmax ranging from 1.2% to 1.5% and 15-35wt% of coal with Rmax ranging from 1.5-1.7% uniformly; feeding the above raw materials into a coke tamping furnace, coking for 25-28 hours under conditions that machine-side temperature ranges from 1305 DEG C to 1335 DEG C, coke-side temperature ranges from 1315 DEG C to 1345 DEG C, coke cake center temperature ranges from 950 DEG C to 1050 DEG C, pressure of an observation hole ranges from -5Pa to 5Pa, pressure of a gas collector pipe ranges from 80Pa to 100Pa and suction force of a flue distribution duct ranges from 245Pa to 265Pa, and obtaining qualified cokes meeting requirements of iron making. Resource utilization of coking coal is expanded, the problem of shortage of coal resources is solved, cost is reduced effectively, and economic benefits of enterprises are increased.
Owner:YUNNAN COAL & ENERGY

Impervious anti-cracking machine-made sand concrete

The invention discloses impervious anti-cracking machine-made sand concrete. The impervious anti-cracking machine-made sand concrete is characterized by comprising the following components in parts byweight: 450-480 parts of cement, 80-130 parts of coarse aggregates, 60-80 parts of fine aggregates, 60-90 parts of super-fine sand, 650-750 parts of machine-made sand, 90-120 parts of emery, 1100-1130 parts of broken stones, 10-18 parts of impervious powder, 24-32 parts of a shrinkage reducing agent, 18-23 parts of a water-reducing agent and 0-8 parts of a defoaming agent. The impervious anti-cracking machine-made sand concrete has the beneficial effects that preparation of high-performance concrete from the impervious agent and the machine-made sand is a leading development direction in thetechnical field of concrete preparation, the requirements for permeability resistance and waterproofness are met, the problem that river sand resources are in shortage is solved, smooth construction of concrete engineering and excellent quality of a concrete structure are ensured, construction is facilitated, and the cost is low.
Owner:徐州金盟新型建材有限公司

Preparation method of pig manure bio-oil, bio-asphalt prepared from pig manure and application

The invention belongs to the technical field of road engineering asphalt materials, and relates to a preparation method of pig manure bio-oil. The preparation method comprises the steps of 1) pretreating pig manure to obtain pig manure particles; 2) pyrolyzing and liquefying the pig manure particles obtained in the step 1) by adopting a rapid thermal cracking and liquefying process to obtain bio-oil prepared from pig manure, so that the pollution problem caused by pig manure solid wastes is solved, the high-added-value utilization of the pig manure is realized, and the method has important environmental protection and economic values; and the biological asphalt prepared from pig manure is obtained by replacing matrix asphalt with pig manure bio-oil and is used for road pavement, so that asphalt can be replaced by a sustainable road building material, and the problem of asphalt resource shortage caused by petroleum resource exhaustion is solved. The preparation method has the advantagesof simple preparation, easy operation, high efficiency, convenience, low raw material cost, better pavement performance, resource saving, environmental protection, cyclic utilization of wastes, and good application and popularization prospects.
Owner:CHANGAN UNIV

Binder special for coal briquette for Lurgi pressurized gasification

The invention relates to coal briquette binders, particularly relates to a binder special for a coal briquette for Lurgi pressurized gasification, and more particularly relates to a binder, which contains silica gel, silica alumina and ammonium carbamate, special for a coal briquette for Lurgi pressurized gasification. The invention further relates to a coal briquette containing the binder and a preparation method of the coal briquette.
Owner:CHINA COAL RES INST

Method for production of phytolaccatoxin medicinal active substance

The production process of medicinal active component phytolaccatoxin belongs to medicine technology and biological technology. The process includes conversion with cotyledon and plumular axis sprouting for seven days as inducing material; infecting explant in bacteria fluid, bateria-free water washing and culture in dark place for two days; secondary culture for at least five times in culture medium with Cedfotaxime to eliminate agrobacterium or high temperature sterilizing through transferring hairy root into thermotank at 39.5 deg.c to culture for 48 hr; separating hairy roots one by one, and culture in 1 / 2MS culture liquid in large amounts to produce phytolaccatoxin and pokeberry polysaccharide. The present invention has the advantages of high yield and stable content.
Owner:SHANGHAI JIAO TONG UNIV

Concrete mineral admixture capable of improving chloride ion penetration resistance and concrete

The invention provides a concrete mineral admixture capable of improving chloride ion penetration resistance. The concrete mineral admixture is characterized by comprising the following components inpercentage by weight: 40-70% of calcined kaolin tailings, 20-50% of limestone powder, 0-10% of gypsum, 0-5% of slaked lime, 0-0.02% of a water-retaining agent and 0-0.5% of an early strength agent. According to the mineral admixture, a large amount of accumulated kaolin tailings and widely existing limestone are used as raw materials and matched with other additives, and the mineral admixture is simple in production process, low in cost, energy-saving and environment-friendly. The mineral admixture can effectively improve the capability of resisting chloride ion penetration of concrete in theearly stage.
Owner:WUHAN UNIV OF TECH

Retrieval method, device and equipment and computer readable storage medium

The invention relates to the technical field of artificial intelligence, and discloses a retrieval method, which comprises the steps of receiving a consultation statement input by a user, and extracting a keyword; inputting the keyword into a preset filter, and querying a database set containing answers corresponding to the question information in a database cluster; converting the question information into sentence vectors according to a preset text vector conversion tool; sharing the sentence vectors to each database in a database set, and controlling each database to search similar vectorsto obtain an answer vector set; converting the answer vector set into sentences through a text vector conversion tool to obtain an answer set corresponding to the question information. The invention further provides a retrieval device, equipment and a storage medium, retrieval is achieved by conducting separate multi-database storage on the retrieved data, the overall retrieval time is shortened,the retrieval speed is greatly increased, and therefore the use experience of a user is improved.
Owner:PING AN TECH (SHENZHEN) CO LTD

Rainwater collecting tank for non-porous ground

The invention relates to a rainwater collecting tank, in particular to a rainwater collecting tank for non-porous ground, which is used for collecting and storing rainwater falling on the non-porous ground. The rainwater collecting tank is structurally characterized in that a water collecting opening capable of collecting water from the ground is arranged at the upper part of the rainwater collecting tank, a filtering device is arranged at the lower part of the rainwater collecting tank, one side of the filtering device is connected with a purification tank by a reaction tank, and a water outlet is arranged at the upper part of the purification tank; and a material changing port is arranged at the top of the reaction tank, a channel is arranged between the rainwater collecting tank and the purification tank, and a dredging opening is arranged on the wall of the rainwater collecting tank. The rainwater collecting tank can effectively collect, filter, purify and store rainwater falling on the non-porous ground, the collected rainwater can used for agricultural irrigation, city greening, industrial production and other aspects, and thus the rainwater can be used fully; and the rainwater collecting tank is simple to implement and convenient to maintain, by the adoption of the rainwater collecting tank, the problem of shortage of fresh water resource can be solved, and occurrence of flood due to overlarge rainfall can be avoided.
Owner:冯忠良
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