11 results about "Large ears" patented technology

The invention provides an otological disease auxiliary diagnosis large model construction method and a large model system, and relates to the technical field of multi-modal learning modeling, and the method comprises the following steps: building four diagnosis sub-models, comprising a hearing loss evaluation model, an auditory meatus and tympanic membrane / middle ear state or lesion evaluation model, an auditory meatus and middle ear structure evaluation model and a medical history and medical record model. The four diagnosis sub-models are trained; the outputs of the four diagnosis sub-models are fused, and a large ear disease clinical diagnosis model is constructed; evaluating and optimizing the performance of the otological disease clinical diagnosis large model; according to the method, multiple sub diagnosis models are fused, multi-source heterogeneous data are used for training, the generalization ability of the model can be improved, the model can adapt to different application scenes, the decision process of the model can be better understood by analyzing the output of each sub diagnosis model, and the credibility of the model is improved.

Disclosed are a method for improving maize yield in a density-tolerant manner and the use thereof, which belong to the field of plant biotechnical breeding. The homozygous lg1 mutant has adverse agronomic traits such as small ears, low yield and high empty stem rate. Provided is a new density-tolerant breeding method. An LG1 / lg1 heterozygous genotype material is obtained by hybridizing an lg1 mutant strain with an LG1 wild-type strain. Compared with the LG1 wild-type strain, the LG1 / lg1 heterozygous genotype material reduces the maize leaf angle and the tassel branch number, and increases the yield under high density conditions; compared with the lg1 mutant, the LG1 / lg1 heterozygous genotype material has excellent agronomic traits such as wider leaves, larger ears, reduced empty stem rate, dense-planting increased yield; and the breeding method has wide application prospects in a density-tolerant and high-yield maize breeding field.

The invention discloses a method for determining wind resistance bearing capacity of a 270-degree occlusion connection metal roof, which comprises the following steps of: establishing a 270-degree occlusion metal roof simulation model, calculating parameters of the simulation model, and performing grid division and solution condition setting on the simulation model; the wind damage resistance failure criterion of the 270-degree occlusion connection metal roof is defined, and the wind damage resistance failure criterion comprises the steps that when any one of the large lug edge bending position and the small lug edge bending position exceeds the wabbler edge of the support, it is considered that the roof panel is disengaged from the support; obtaining the wind-resistant bearing capacity of different metal roof simulation models under different simulation parameters during wind-resistant failure through simulation, so as to obtain the influence degree of different simulation parameters on the wind-resistant bearing capacity; determining a wind resistance bearing capacity determination formula of the 270-degree occlusion connection metal roof based on parameter fitting; and based on the model test and / or test data collection, verifying the accuracy of the wind resistance bearing capacity determination formula of the 270-degree occlusion connection metal roof. The invention also discloses a corresponding evaluation system and device, electronic equipment and a computer readable storage medium.

The invention discloses a method for breeding a new variety of large-spike wheat, comprising the following steps: S1: selecting wheat seeds with full grains, uniform color and gloss as male and female parents; S2: marking molecules related to multi-spike traits and large-spike traits, and designing specific primers; S3: constructing a map of genetic background using the developed molecular markers; S4: selecting wheat seeds with different marker types as parents for hybridization; S5: screening individuals with different phenotypes from hybrid offspring to establish a segregating population; S6: performing molecular marker analysis on the segregating population, selecting individuals carrying the target gene, and self-pollinating them; S7: performing phenotype verification on the individuals selected by MAS, and performing continuous self-pollination to obtain a new variety. The advantages of the present invention over the existing technology are that the present invention can quickly analyze a large number of samples, greatly improve the efficiency of breeding, and accurately identify and select individuals with specific traits.

The invention belongs to the technical field of excellent gene detection of wheat germplasm resources, and discloses a molecular marker, a primer combination and an application of a major effect gene QS1-YB.saas-4B of spike length in wheat large-spike germplasm YB. The spike length trait-related site QS1-YB.saas-4B comes from the short arm of chromosome 4B of wheat large-spike germplasm resources YB. The molecular marker of the site is two pairs of KASP-specific linkage markers developed by using SNP probes on both wings of the spike length trait-related gene QS1-YB.saas-4B of large-spike germplasm YB. The probes are a probe sequence 4B-442201 with a nucleotide sequence such as SEQ ID NO.1 and a probe sequence 4B-457515 with a nucleotide sequence such as SEQ ID NO.2; the linkage markers are a KASP marker of KASP-4B-442201 and a KASP marker of KASP-4B-457515. The marker provided by the present invention can be used to detect the spike length trait-related site QSl-YB.saas-4B on chromosome 4B of wheat large-spike germplasm YB, quickly screen and accurately identify whether the target material contains the excellent gene site, and then improve the efficiency of wheat high-yield breeding through molecular-assisted selection.

1. Name of the product in this design: Pot (Large Ear Pot Set). 2. Purpose of this design: For cooking food. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The invention discloses a method, a molecular marker and a primer for improving wheat scab resistance by using QFhb-2DL and QFhb-3BL. The molecular marker comprises a dcaps marker of the QFhb-2DL and / or a KASP marker of the QFhb-3BL. According to the invention, a molecular marker closely linked with QFhb-2DL and a molecular marker closely linked with QFhb-3BL are developed for the first time, and molecular design breeding is realized by utilizing the developed new markers closely linked with sites on the premise of stabilizing the characteristics of stripe rust resistance, dwarf, large ear and multiple ears of wheat varieties at the upstream of Yangtze River; disease-resistant genotypes of QFhb-2DL and QFhb-3BL are rapidly introduced into wheat varieties at the upstream of Yangtze River to breed a gibberellic disease resistance strain with the yield remarkably improved compared with that of a control group, and the gibberellic disease resistance breakthrough at the upstream of Yangtze River is achieved.

The invention discloses a yellow glutinous sorghum breeding method, and particularly relates to the technical field of sorghum crossbreeding, and the yellow glutinous sorghum breeding method specifically comprises the following steps: S1, preparing a breeding matrix, S2, sowing and seedling raising, S3, transplanting and hybridizing, S4, greenhouse generation adding and hybridizing, S5, sugarcane field transplanting and gene absorption, S6, soil preparation and transplanting management, and S7, screening and breeding. According to the method disclosed by the invention, the tiger excrement is used as a breeding matrix, and the new double-cropping sorghum variety with the characteristics of multiple branches, large ears and high sugar is successfully cultivated by combining the hybridization of upland rice and sorghum, corn hybridization and sugarcane grafting technologies through the steps of optimizing soil preparation, transplanting management, disease and pest monitoring, prevention and control and the like; the breeding targets of efficient utilization of resources and ecological circulation are achieved.

The utility model relates to an earmuff type earphone for hearing diagnosis, which comprises an arc-shaped earphone frame, a support component is arranged on the inner side of the earphone frame, and earphone shells are arranged at two ends of the earphone frame. The utility model relates to the technical field of hearing test earphones. According to the earmuff type earphone for hearing diagnosis, when a testee with a large ear is tested, an adjusting table is rotated to pull a sealing plate to be matched with a connecting pipe to extract air in the outer earmuff, at the moment, the outer earmuff collapses, and after the outer earmuff collapses, the earmuff type earphone is used for hearing diagnosis. When a large ear testee wears the earmuff, the outer wall of the inner earmuff connected with the outer earmuff is driven to collapse synchronously, and the inner wall of the inner earmuff is not pressed, so that the top end of the inner earmuff is turned outwards along with the collapsed outer wall, and the inner ring of the inner earmuff is expanded, so that the large ear testee completely wraps the ear in the inner earmuff; and the problem of sound leakage or ear compression caused by the fact that the earmuffs compress the ears of the big-ear testee is avoided.

The utility model relates to the technical field of medical equipment, and discloses an optimized design structure of an occipital jaw belt, which comprises an occipital jaw belt surface layer, a connecting belt is fixedly connected to the outer wall of the rear side of the occipital jaw belt surface layer, a connecting buckle is arranged on the outer wall of the connecting belt, and a bandage is arranged on the outer wall of the occipital jaw belt surface layer. A first hook-and-loop fastener is arranged on the outer wall of the front side of the occipital jaw belt surface layer, a towel is arranged on the outer wall of the first hook-and-loop fastener, ear opening holes are formed in the outer wall of the occipital jaw belt surface layer, and an occipital jaw belt lining layer is arranged on the outer wall of the occipital jaw belt surface layer. According to the utility model, through the matching of the larger holes in the ears and the elastic bandages, the size adjusting degree of the pillow jaw belt can be further increased, the pillow jaw belt can better adapt to patients with different head shapes and sizes, the discomfort is relieved, the tightness and the comfort degree are further enhanced, the indentation can be reduced, and the heat preservation effect can be improved by additionally arranging the heat preservation sheet.

The application provides a fertilization method based on rice tillering dynamics and application thereof, and relates to the technical field of rice cultivation. According to the fertilizer requirement law of rice and the soil nutrient supply capacity, the application adopts a front control, middle promotion and rear supplement mode, guides fertilization through the growth and decline law of tillers, improves the ratio of ear grains to fertilizer, and can fully meet the demand of rice for nitrogen in the later growth period, thereby solving the technical problems in the prior art that the front promotion of nitrogen fertilizer can promote a large number of tillers, but the number of ears does not increase, instead, the effective tiller rate is reduced, the ear is smaller, and the maturity is reduced, and meanwhile, the application can cause the technical problems of lodging, increased pests and diseases and the like. The application achieves the technical effects of effectively improving the quality of rice population, promoting large ear formation, improving the seed setting rate of rice and greatly increasing the yield of rice.