47results about How to "Alleviate scarcity" patented technology

A hybrid translation apparatus includes a source language input unit for generalizing an input source language sentence for each node; a statistics-based translation knowledge database(DB) for storing learning data generalized for each node to be acquired; a first translation result generating unit for transforming the source language sentence generalized for each node into a node expression using the statistics-based translation knowledge to generate a first translation result; and a second translation result generating unit for repeatedly performing the generation of a target word for each node on the first translation result using pattern-based knowledge to generate a second translation result as target words for the respective nodes. Further, the hybrid translation apparatus includes a pattern-based translation knowledge DB for using in the pattern-based translation; and a translation result combining unit for combining the first translation result and the second translation result to output a target language sentence.

The invention discloses a method for preparing steel fiber rubber particle modified asphalt recycled aggregate concrete. In the method, waste concrete is subjected to crushing, separating, screening, washing and drying to obtain the recycled aggregate, and the recycled aggregate is stirred with emulsified asphalt until the emulsified asphalt is covered on the surface of the recycled aggregate; waste tire is subjected to coarse crushing, separating, washing and drying to obtain the steel fiber rubber particle; and the recycled aggregate containing the emulsified asphalt, steel fiber rubber particles, natural aggregate, cement, sand and water are stirred according to certain ratio to obtain the steel fiber rubber particle modified asphalt recycled aggregate concrete. In the invention, the waste tire is subjected to crushing process to produce the steel fiber rubber, and the crack resistance, the heat preservation capability and the energy absorption and noise reduction capability of the asphalt recycled aggregate concrete are effectively improved by the modification of the steel fiber rubber; and the material is a circular economy building material, and by producing the material, the environmental pollution is reduced, and the performance of the material can be improved under the condition of not increasing cost.

An opportunistic spectrum access method based on Markov chain and CSMA includes that the access predication statistical module method of the Markov chain is combined with the CSMA access protocol to adopt different access modes according to different induction areas, before the user access is recognized, the spectrum detection is carried out according to spectrum induction method, and the first and second dual thresholds Lambda 1 and Lambda 2 of the interference temperature of the master user, the judgment area whether the master user exists is divided according to the two thresholds, when the interference temperature value is less than the Lambda 1, the user is recognized and accessed directly; when the interference temperature value is more than the Lambda 2, the CSMA access mode is adopted for back-off access; when the interference temperature is between the Lambda 1 and Lambda 2, a Markov chain access predication statistical module with the master user as the priority is built in queuing and non-queuing modes, and the Markov chain module is adopted to describe the opportunistic spectrum access. During access process, the first and second interference temperature thresholds are regulated dynamically to realize the maximization of the whole network throughput.

The invention relates to a bio-based high-branched polyester and a preparation method thereof. The bio-based high-branched polyester is obtained by bulk polymerization initiated through a free radical and then purifying. According to the invention, the obtained polyester is not gelled and double bonds still exist on the branched chains of the polyester, thus an elastomer is prepared by further processing and crosslinking; and the polyester can also be used as a flexibilizer of a composite material and a plasticizer of rubber, and can further be used for preparing an oil absorption resin. In the invention, the used raw material is plant oil and is not dependent on a petroleum resource, thus having important significance in the aspect of solving the increasingly deficient problem of petroleum resources.

The invention discloses a method for producing ammonium sulfur and potassium-calcium-silicon fertilizer by using phosphogypsum. The method comprises the followings steps of: adding solution of ammonium carbonate and dried phosphogypsum into a reaction kettle, and performing solid-liquid separation of the obtained pulp by a filter press after reaction; adjusting a pH value of filtrate to 5.6 to 6.0, performing concentration and crystallization of the filtrate and drying the crystals to obtain the fertilizer-graded ammonium sulfate products; washing filter cakes by water, putting the filter cakes in drying equipment, introducing tail gas in a roller kiln furnace to dry the materials, performing heat-exchange drying of the materials in the drying equipment, and using the dried filter cakes a raw material for producing the potassium-calcium-silicon fertilizer; and drying and grinding potassium feldspar and the phosphogypsum, mixing the powder of the potassium feldspar and the phosphogypsum and the dried filter cakes, putting the mixture in a ball mill, putting the mixture in the drying equipment for drying, continuously putting the mixture in the roller kiln furnace for calcining, performing a solid-phase reaction, cooling the reaction products, and dry-grinding and granulating the cooled reaction products to obtain the potassium-calcium-silicon fertilizer, wherein the tail gas in the roller kiln furnace enters the drying equipment to perform the heat-exchange drying of the materials. The method has the advantages of simple process, low raw material cost and low energy consumption.

The invention discloses a plant fiber-based particle board and a preparation method of the plant fiber-based particle board. Before gluing, camellia oleifera shells are pretreated, the pretreated camellia oleifera shells are mixed with glues evenly and then horizontally laid in a mould to be formed in a hot pressing mode, and the plant fiber-based particle board is obtained. The plant fiber-based particle board is good in mechanical performance, the static bending strength is 1.49 MPa-3.5 MPa, the elastic modulus is 383 MPa-530 MPa, and the internal bonding strength is 0.31 MPa-1.02 MPa. Compared with other biomass materials, the used camellia oleifera shells have the characteristics of being low price, reproducible, rich and intensive in yield and the like. The used overall working procedure is short, the method is simple, and the method has special significance for improving the high quality utilization way of camellia oleifera shell resources and relieving the current situation that forest resources are deficient.

The invention requests to protect a resource distribution method based on D2D communication under a very-high frequency band. The method comprises the steps of firstly using a linearly dependent method to select honeycomb user resources which can be reused by a D2D user; then using a data rate maximization rule to find a D2D user pair set reusing each honeycomb user resource; and at last providing a resource distribution method based on interference control, selecting the best honeycomb user from the reusable honeycomb user resources to share the resources with the D2D user by comparing the throughput size, and thus service of quality (QoS) of honeycomb communication and D2D communication is ensured. According to the method provided by the invention, interference between the D2D user and the honeycomb user can be controlled, throughput of the system and spectrum efficiency can also be enhanced, and meanwhile algorithm complexity is reduced.

At present, a decoder-encoder structure is commonly used in neural machine translation, and a good effect is obtained under the condition that parallel corpora are sufficient. However, for the Mongolian language as a small language, mongolian and Chinese parallel corpus resources are limited and are very difficult to obtain, therefore, the invention provides a semi-supervised Mongolian-Chinese neural machine translation method based on collaborative training. Three translation models are constructed by using a semi-supervised classification generative adversarial network: a Mongolian-Chinese translation model M-mo-ch, an English-Chinese translation model M-en-ch and a Korean-Chinese translation model M-ko-ch; the three translation models are used for marking a multi-source end parallel corpus Mongolian and Korean to a target end, namely Chinese, the marked corpus with the best quality is selected by using a language model LM-ch trained by Chinese monolingual training to expand an original corpus, and a better translation model is trained again. According to the method, collaborative training and the semi-supervised classification generative adversarial network are combined and applied to Mongolian-Chinese neural machine translation, and the quality of the Mongolian-Chinese neural machine translation model is improved.

The invention relates to a solar seawater desalting system. A solar heat collector array is connected with an oil pipeline in a seawater evaporating tank, the inner side wall of the seawater evaporating tank is provided with an atomizing spray head, the atomizing spray head is connected with an unevaporated seawater outlet on the lower end of the seawater evaporating tank and a cold seawater outlet of a condenser through a cycling pump, and a steam outlet on the upper end of the seawater evaporating tank is connected with a steam inlet of the condenser. A coiled pipe is fully distributed inside the condenser, a water inlet of the coiled pipe is connected with a throttling valve for controlling the cold seawater inlet quantity, and a liquid water outlet on the lower end of the condenser is connected with a fresh water collecting device. The solar seawater desalting system does not need external energy, the radiation energy is converted to the heat for heating the working medium oil through the solar heat collector, and the heat is transferred to the seawater in the evaporating tank through the circulation of the oil inside the pipeline so as to heat the seawater. In addition, the atomizing spray head is also installed inside the evaporating tank, so that the heated area of the seawater is increased, and the evaporation of the seawater can be accelerated. The steam is condensed into the fresh water through the condenser, so that the desalting of the seawater can be realized.

The invention provides a permeable crystalline type concentrating agent prepared from construction waste, aiming at insufficiencies of high raw material cost and unsatisfactory mechanical properties of existing cement-based permeable crystalline type waterproofing materials, and the agent comprises regenerate micro-powder, cement, quartz sand, active silicon additive, complexing agent and CaO, wherein the regenerate micro-powder is obtained through crushing, screening and ball milling the waste concrete of the construction waste. The product provided by the invention and method thereof not only realizes recycling of the construction waste, but also provides a permeable crystalline type waterproofing and grouting material with low cost, and the material has excellent mechanical properties and good stability, and can be used as casting materials for buildings and admixtures of consolidating materials of reservoirs and banks weak interlayers.

The invention discloses an automobile repair knowledge entity network construction method. a plurality of automobile repair entities can be identified from the structured automobile repair data; the automobile repair knowledge entity network is constructed on the basis of automobile repair entities and corresponding relation entity pairs, logic relations, namely the relation entity pairs, among the automobile repair entities are extracted, the automobile repair knowledge entity network is finally constructed on the basis of the automobile repair entities and the corresponding relation entity pairs, and the automobile repair entities comprise any one or any combination of automobile repair part nouns, automobile repair phenomenon nouns and automobile repair steps. Therefore, by means of themethod, the relation between the automobile repair part, the automobile repair phenomenon and the automobile repair steps can be extracted, and the automobile repair knowledge entity network is established based on the relation, so that the purpose of providing rich and accurate automobile repair knowledge for automobile repair personnel is achieved, the threshold of the automobile repair industry is lowered, the automobile repair cost is saved, and the problem that professional maintenance personnel are scarce is solved. The invention further provides an automobile repair knowledge entity network construction device and equipment and a computer readable storage medium. The effects of the automobile repair knowledge entity network construction device and equipment correspond to the effects of the method.

The invention discloses a high-strength anti-cracking thermal construction concrete material and a preparing method thereof. The material is prepared from, by weight, 85-100 parts of cement, 20-30 parts of magnesium oxide, 10-25 parts of graphite tailings, 15-35 parts of nanometer porous silicon particles, 10-15 parts of expansion clinker, 18-25 parts of recycled building aggregate, 10-20 parts ofcoal ash, 20-25 parts of hydroxypropyl methyl cellulose, 10-15 parts of silica fume, 10-20 parts of polycarboxylic acid efficient water reducer, 5-10 parts of redispersible powder, 8-15 parts of additive and a proper volume of water. By effectively matching cement, magnesium oxide, graphite tailings, nanometer porous silicon particles, expansion clinker, recycled building aggregate, coal ash, hydroxypropyl methyl cellulose, silica fume and polycarboxylic acid efficient water reducer, the reinforced concrete which has high compressive strength and breaking strength, can be well combined with existing concrete and is not prone to disengagement, excellent in overall performance and quite suitable for concrete work damage positions is obtained; the production process is simple.

The invention discloses a camellia changii variety breeding method which comprises the following steps of selecting budding flowers by taking fragrant flowers with rich flower colors and flower types as breeding aims in a camellia changii male parent blooming season, poking petals, quickly removing all stamens, smearing pollens to be pollinated on stigmas, folding an adhesive plaster in two to completely cover the stigmas for controlled pollination to realize the controlled pollination of theaceae plants, and performing seed breeding of hybrids under an indoor control condition. The variety of camellia changii is small, the number of female parents is small, and the breeding potential is low. By a tissue culture technology disclosed by the invention, the problems can be well solved; rare and precious resources, namely the camellia changii, can be protectively used; the problem that the camellia changii seedlings are scarce can be alleviated.

The invention relates to the field of biological fermentation and feed, in particular to a yeast hydrolysate with high free nucleotide and a preparation method and application thereof. The yeast hydrolysate with high free nucleotide comprises protein, free nucleotide, amino acid and small peptide, wherein the content of the protein is 60-75% and the content of the free nucleotide is 35% or above based on the dry matter mass of the yeast hydrolysate, and the yeast hydrolysate is obtained through yeast milk enzymolysis, nucleotide acidification and nucleotide strengthening. The invention furtherprovides the preparation method of the yeast hydrolysate. The content of the free nucleotide in the prepared yeast hydrolysate is 35% or above, the preparation method is simple, and the obtained yeast hydrolysate is a natural product and is green and safe. The yeast hydrolysate with high free nucleotide can relieve the scarcity of a feeding nucleotide source, the breeding benefit is increased, and application prospects are broad.

The invention discloses a selection method for a fine individual plant of 4-terpilenol type cajeput. According to the selection method, a cajeput plant is subjected to individual plant primary selection, breeding and tending and individual plant secondary selection to obtain the fine individual plant of which the content of 1,8-eudesmin is less than 3.0 percent and the content of the 4-terpilenol is more than 39.0 percent in essential oil. The quality of the produced essential oil is superior to the international standard of the like products. The selection method disclosed by the invention is simple and can be used for obtaining high oil yield of branches and leaves.

The invention discloses a recycled building material. The recycled building material comprises the following components by mass percent: 18%-38% of cement, 60%-80% of recycled aggregate, 1%-3% of a thickener, 3%-5% of a compatilizer, 1%-3% of a processing agent, and 1%-3% of an ultraviolet light absorber, wherein the cement is Portland cement, the recycled aggregate is solid particles with the grain size of less than 4.75 mm, the solid particles are prepared by pulverizing a building waste, and the thickener is cellulose ether. The recycled building material meets the performance requirement of the current recycled building material, the indexes like volume weight, compressive strength, fireproofing grade (A1 grade) and mechanical performance meet the related application standards, the recycling cost is relatively low, and practical use requirements are met.