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106results about How to "High contribution rate" patented technology

Anaerobic-anoxic-hypoxic integrated reactor and application thereof

The invention relates to the field of environmental protection and sewage treatment, in particular to an anaerobic-anoxic-hypoxic integrated reactor. The anaerobic-anoxic-hypoxic integrated reactor is characterized in that: the anaerobic-anoxic-hypoxic integrated reactor comprises an anaerobic zone (3), an anoxic zone (4), a hypoxic aeration zone (5), a degasification zone (6), a sedimentation zone (7), a water inlet pipe (1), a sludge removing pipe (13) and a water outlet pipe (17); the anaerobic zone (3), the anoxic zone (4), the hypoxic aeration zone (5), the degasification zone (6) and the sedimentation zone (7) are sequentially arranged along the direction of water flow and are communicated by underwater holes; the sedimentation zone (7) is provided with the sludge removing pipe (13) and the water outlet pipe (17); as a water distribution tank (2) is provided, the proportion of sewage entering the anaerobic zone (3) and the anoxic zone (4) can be flexibly adjusted; in addition, a movable zone partition plate (20) is provided and can adjust the volume as well as functional location of the anaerobic zone (3) and the anoxic zone (4). The invention can effectively solve the problems of poor effect of synchronously removing nitrogen and phosphorus, insufficient carbon sources, high energy consumption and the like during the running of the traditional A2O reactor.
Owner:HOHAI UNIV +1

Method for improving ammonia nitrogen removal in constructed wetland by utilizing wetland harvesting plant

The invention discloses a method for improving ammonia nitrogen removal in a constructed wetland by utilizing a wetland harvesting plant. The constructed wetland comprises a pool body, a water inlet/outlet system, a wetland matrix and a wetland plant; the wetland plant is harvested and then carbonized to obtain a biomass carbon material of such a wetland plant, and then the biomass carbon material is backfilled into the pool body as the wetland matrix; the wetland matrix comprises a bottom layer, an intermediate layer and a surface layer which are placed from bottom to top in sequence; and the intermediate layer is the biomass carbon material. By adopting the method, the effect of removing NH4<+>-H in sewage is improved, no secondary pollution is brought, and the cost on construction and operation of the conventional constructed wetland can be effectively reduced; and the method has the characteristics of being stabile in water treatment effect and capable of buffering the impact to hydraulic power and pollution load. The method not only solves the problem that improper treatment is performed to the harvested wetland plant and causes secondary pollution to the environment, but also effectively improves the removal effect of the wetland to the NH4<+>-H, and realizes the recycle of the wetland plant.
Owner:SOUTHWEST UNIVERSITY

Major QTL site of content of oleic acid of brassica napus seeds, SNP molecular markers and application thereof

The invention provides a major QTL site of the content of oleic acid of brassica napus seeds. The major QTL site is located between the 8024751st base and the 11299788th base of an A08 chromosome of brassica napus, and preferably has a contribution rate of 71.00 percent for the content of oleic acid of brassica napus seeds. The major QTL site is closely linked with a first SNP molecular marker which is located on the 8024751st base and is C or G, and the mutation causes polymorphism; the major QTL site is closely linked with a second SNP molecular marker which is located on the 11299788th baseand is A or G, and the mutation causes polymorphism; and the major QTL site is closely linked with a peak SNP molecular marker which is located on the 10445600th base and is A or G, and the mutationcauses polymorphism. The invention further provides related SNP molecular markers and application. The major QTL site of the content of oleic acid of brassica napus seeds has a high contribution ratefor the content of oleic acid of brassica napus seeds, has a key effect on regulation of the content of oleic acid of brassica napus seeds, can be used as map-based cloning and molecular marker assisted selection and is suitable for large-scale popularization and application.
Owner:INST OF OIL CROPS RES CHINESE ACAD OF AGRI SCI

Major QTL site for flowering time-related traits of brassica napus, SNP molecular markers and application

ActiveCN110592251AHigh contribution rateAccelerate the breeding process during the growth periodMicrobiological testing/measurementDNA/RNA fragmentationBiotechnologyBrassica
The invention provides a major QTL site for flowering time-related traits of brassica napus. The major QTL site is located between the 6143445th base and the 7287910th base of an A02 chromosome of thebrassica napus, and preferably has a contribution rate of 15.43 percent for the flowering time-related traits of the brassica napus. The major QTL site is closely linked with a first SNP molecular marker which is located on the 6143445th base and is A or C, and the mutation causes polymorphism; the major QTL site is closely linked with a second SNP molecular marker which is located on the 7287910th base and is A or G, and the mutation causes polymorphism; and the major QTL site is closely linked with a peak SNP molecular marker which is located on the 6330026th base and is C or G, and the mutation causes polymorphism. The invention further provides related SNP molecular markers and application. The major QTL site for the flowering time-related traits of brassica napus has a high contribution rate for the flowering time-related traits of the brassica napus, has a key effect on regulation of the flowering time-related traits of brassica napus, can be used as map-based cloning and molecular marker assisted selection and is suitable for large-scale popularization and application.
Owner:INST OF OIL CROPS RES CHINESE ACAD OF AGRI SCI

Unbalanced data classification method based on clustering downsampling

The invention discloses an unbalanced data classification method based on clustering downsampling. The unbalanced data classification method comprises the following steps: utilizing a quick search anddiscovery density peak value clustering algorithm for clustering various categories of samples of a training set to obtain a clustering result; dividing multiple categories of samples in the trainingset into N clusters; forming a new sample set by each cluster of sample of multiple categories of samples in the training set and small categories of samples in the training set, and utilizing a support vector machine for classification to obtain the support vectors of multiple categories of samples in the training set; extracting the new training set formed by the support vector of each clusterand the small categories of samples in the training set; training the new training set through the support vector machine, and carrying out performance evaluation through a cross verification set. Thetraining time of the classifier can be shortened, in addition, the identification rate of small categories of samples can be improved under a situation that the identification rate of multiple categories of identification samples is not harmed, and the performance of the classifier is improved.
Owner:WUYI UNIV

Major QTL (quantitative trait loci) of thousand seed weight trait of Brassica napus L., and SNP molecular markers and application thereof

The invention provides a major QTL (quantitative trait loci) of thousand seed weight trait of Brassica napus L., which is between the 27906310th base and the 28240646th base of the chromosome A09 of Brassica napus L.. Preferably, the rate of contribution of the major QTL to the thousand seed weight trait of Brassica napus L. is 37.4%; the the major QTL to the thousand seed weight trait of Brassicanapus L. is in close linkage with a first SNP molecular marker, the first SNP molecular marker is located at the 27906310th base which refers to T or G, and the mutation causes polymorphism; the major QTL to the thousand seed weight trait of Brassica napus L. is in close linkage with a second SNP molecular marker, the second NP molecular marker is located at the 28240646th base which refers to Tor G, and the mutation causes polymorphism; the major QTL to the thousand seed weight trait of Brassica napus L. is in close linkage with a peak SNP molecular marker, the peak SNP molecular marker islocated at the 28151624th base which refers to T or G, and the mutation causes polymorphism. The invention further provides related SNP molecular markers and application thereof. The major QTL of thousand seed weight trait of Brassica napus L. has high rate of contribution to the thousand seed weight trait of Brassica napus L., plays a key role in regulating and controlling the thousand seed weight trait of Brassica napus L., can be used for map-based cloning and molecular marker assistant selection, and is suitable to be promoted and applied in scale.
Owner:贵州省油菜研究所

Major QTL and SNP molecular marker for controlling Nelumbo nucifera color traits as well as detection primer and application thereof

The invention discloses a major QTL and SNP molecular marker for controlling Nelumbo nucifera color traits as well as a detection primer and application thereof. The invention firstly provides a majorQTL site for controlling the flower color traits of Nelumbo nucifera, and the major QTL site is positioned in a sixth linkage group and between two SNP markers; the major QTL is closely linked with the SNP molecular marker, has a relatively high contribution rate to the flower color traits of the Nelumbo nucifera, participates in regulating and controlling the phenotype of the red or white flowerof the Nelumbo nucifera, and can be used for map-based cloning mining of functional genes for controlling the flower color traits and molecular marker-assisted selection. The invention further provides an SNP molecular marker closely linked with the major QTL, and the SNP molecular marker is used for efficiently selecting Nelumbo nucifera varieties with target flower colors and molecular marker assisted breeding of Nelumbo nucifera with seeds and Nelumbo nucifera with roots. The invention further provides a PARMS primer group for detecting the SNP marker and a method for identifying the red and white flower traits of the Nelumbo nucifera, so that the flower color genotype data of the Nelumbo nucifera can be analyzed and obtained only through PCR amplification and without electrophoresis detection.
Owner:WUHAN ACADEMY OF AGRI SCI

Preparation method of direct-stirring type SBS (styrene-butadiene-styrene) asphalt modifier and preparation method of asphalt mixture

The invention relates to a preparation method of a direct-stirring type SBS (styrene-butadiene-styrene) asphalt modifier and a preparation method of an asphalt mixture. The preparation method comprises the following steps of respectively metering 4303 star-shaped SBS, 1301 linear SBS and lubricating oil, feeding into a mixer according to a ratio, uniformly mixing, and uniformly stirring; feeding petroleum resin and calcium carbonate into the mixer, and uniformly stirring; feeding the mixture into a double-screw extruder, enabling the mixture to form a melting mixture at high temperature, and enabling the double-screw extruder to extrude the melting mixture after the forced shearing, extrusion, dispersing and kneading are continuously maintained; cooling the melting mixture extruded by thedouble-screw extruder by a water tank, enabling a pelletizer to cut into granules, enabling an air dryer to dry, and packaging. The preparation method has the advantages that the production technologyof the modified asphalt is simplified, the production quality of the mixture is favorably controlled, the construction quality of a road pavement is ensured, the use property of the road is improved,the service life of the road is prolonged, the pollution to the environment is decreased, and the engineering investment is reduced.
Owner:SHANDONG JIAOTONG UNIV

Heating and refrigerating system by using solar energy and terrestrial heat

The invention provides a heating and refrigerating system by using solar energy and terrestrial heat. The system comprises a heat collection device, a heat storage device, an underground heat exchange device, a heat conversion device, a heat collection circulating pump and a heat source circulating pump, wherein the heat collection circulating pump, the heat collection device, the heat storage device, the heat source circulating pump and the heat conversion device are connected in series through conduction devices in turn to form a first circulating circuit; the heat collection circulating pump, the heat collection device, the heat storage device, the heat source circulating pump, the underground heat exchange device and the heat conversion device are connected in series through the conduction devices in turn to form a second circulating circuit; a plurality of valves and the conduction devices for controlling the communication status are arranged between the first circulating circuit and the second circulating circuit; and energy is transferred inside the system through liquid substances. By means of the technical scheme, the heat collection efficiency and the solar energy contribution rate can be improved, heat energy can be sustainably and stably supplied for the heat conversion device, and the heat energy can be effectively returned.
Owner:侯春来

Index extreme value based rapid matching method of spectrum characteristic variable

The invention discloses an index extreme value based rapid matching method of spectrum characteristic variable. The method is characterized in that a simple linear model is treated as a spectrum correction prediction model for selecting valid characteristic variable; an unitary linear regression model is built for each variable (wavelength) in a spectrum variable set based on the law of lambert-beer; unitary characteristic variables corresponding to the peak value and the valley value are selected based on the target of model prediction index extreme value, and a second variable which can realize perfect matching with each unitary characteristic value is further found out to form a discrete characteristic variable set; and a spectrum correction model is built through the characteristic variable set and can be used for effectively overcoming the problem of spectrum collinearity which often occurs in a simple linear model. The method has the advantages of being simple and convenient in model, little in calculation workload, and high in freedom of selection; the method can be popularized and applied to the fields of raman, near infrared, intermediate infrared and ultraviolet spectrum analysis; and effective technological support is provided to the design of a small portable dedicated spectrograph.
Owner:GUILIN UNIVERSITY OF TECHNOLOGY

Hypervolume stable lithium battery and preparation method thereof

The invention discloses a hypervolume stable lithium battery, the hypervolume stable lithium battery comprises a positive electrode, a negative electrode, a composite membrane and a nonaqueous electrolyte; the nonaqueous electrolyte comprises a lithium salt, a room temperature ionic liquid electrolyte and a composite additive, wherein the room temperature ionic liquid electrolyte comprises a quaternary ammonium salt cationic liquid and a cosolvent at the mass ratio of 1:(0.1-0.5); and the composite membrane comprises a multi-arc hole fiber based membrane and an inorganic nanometer coating on the surface of the multi-arc hole fiber based membrane. Compared with the prior art, in the provided hypervolume stable lithium battery and a preparation method of the hypervolume stable lithium battery, the nonaqueous electrolyte uses an ionic liquid to replace the traditional organic solvent, the range of the working temperature of the battery is expanded, the stability on the metal lithium is good, the safety of the battery at the high-power density is further improved, the potential safety hazard of the battery is eliminated; the composite membrane guarantees the better mechanical propertyand the electric conductivity of the composite membrane, and meanwhile, the thermal stability of the membrane is improved. Therefore, the hypervolume stable lithium battery is higher in ionic conductivity and excellent in thermal stability, chemical stability and electrochemical stability.
Owner:江苏微能电子科技有限公司

Main effect QTL site of the main inflorescence pod number character of Brassica napus, development of SNP molecular markers and application thereof

The invention provides a main effect QTL site of the main inflorescence pod number character of Brassica napus. The main effect QTL site is located between bases 5808417 and 7114866 in the A02 chromosome of Brassica napus. Preferably, the contribution rate of the main effect QTL site to the main inflorescence pod number of Brassica napus is 10.6%. The site is closely linked to the first SNP molecular marker. The first SNP molecular marker is located at base 5580417, which is C or T. This mutation leads to polymorphism. The site is closely linked to the second SNP molecular marker. The second SNP molecular marker is located at base 7113686, which is A or C. This mutation leads to polymorphism. The site is closely linked to the peak SNP molecular marker. The peak SNP molecular marker is located at base 6926697, which is A or C. This mutation leads to polymorphism. The invention also provides development of related SNP molecular markers and application thereof. The main effect QTL site ofthe main inflorescence pod number character of the Brassica napus provided by the invention has a high contribution rate to the main inflorescence pod number character of the Brassica napus, plays akey role in the regulation of the main inflorescence pod number of the Brassica napus. It can be used for map-based cloning and molecular marker-assisted selection, and is suitable for large-scale promotion and application.
Owner:INST OF OIL CROPS RES CHINESE ACAD OF AGRI SCI

Cemented backfill microscopic parameter sensitivity analysis method based on image processing

The invention discloses a cemented backfill microscopic parameter sensitivity analysis method based on image processing. The method comprises the steps of 1, preparing an SEM scanning electron microscope sample and a single-axis compressive strength testing sample; 2, performing single-axis compressive strength testing on a plurality of compressive strength testing samples by means of a cemented backfill single-axis compressive strength testing device, and obtaining the single-axis compressive strength of a plurality of cemented backfill samples; 3, obtaining a microscopic parameter set of theplurality of cemented backfills; and 4, calling the microscopic parameter and a sensitivity analysis module for the single-axis compressive strength for performing sensitivity analysis on the single-axis compressive strength of the plurality of cemented backfill samples and the microscopic parameter set of the plurality of cemented backfills, and determining the sensitivity microscopic parameterof the cemented backfill to mechanical response characteristic sensitivity. The method can well determine a primary and secondary relation of the microscopic parameters and can help in researching a new cemented backfill.
Owner:XIAN UNIV OF SCI & TECH
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