8 results about "Physical model" patented technology

The invention discloses a simulation method for a hot air drying process of a fungus material, and the method comprises the steps: building a physical model of a porous medium pore channel network ofthe fungus material according to the corresponding relation between the structural composition of the fungus material and the porous medium pore channel network structure; dispersing the fungus material medium calculation area into three parts, namely a skeleton, a pore node and a pore channel; simplifying the topological structure of the model according to the actual material related physical property characteristic parameters; establishing a pore channel network mathematical model for fungus material drying and mass transfer; establishing a fungus material drying heat transfer mathematical model based on a pore network; setting initial conditions and boundary conditions of mass transfer and initial conditions and boundary conditions of heat transfer; and solving the fungus material drying mass and heat transfer mathematical model established in the steps 4 and 5 by adopting a staggered grid. The method can comprehensively consider the heat and mass coupling complex transmission process of moisture between frameworks, between pore channels and between the frameworks and the pore channels in the drying process, and lays a foundation for analysis of the drying mechanism of high-heat-sensitivity and high-activity materials.

The embodiment of the invention discloses a method and device for enhancing a night vision image in a self-adaption mode. The method comprises the steps that the initial value of a brightness field of a low-light image is obtained; a transmissivity repair function is obtained according to the initial value; enhancement processing is carried out on the low-light image according to the transmissivity repair function and an atmospheric light scattering physical model, the curve confirming to the visual characteristic of the human eyes is utilized, the pixels of RGB channels of a color image are all processed, a self-adaption increment coefficient is added, the brightness can be effectively improved, and therefore the method and device can adapt to various occasions and color images or grey level images or optical images or other images, and universality is achieved.

The invention discloses a dynamic meiosis model for biological teaching and a use method thereof. The invention belongs to the technical field of biology teaching, the invention discloses a dynamic meiosis model for biological teaching. A physical model can be autonomously constructed through teachers or students; by adopting the dynamic demonstration method, a unitized chromosome unit model is innovatively introduced; different chromosomes are formed on the basis of functions of discoloration, connection, separation and the like; the flexibility of matching between chromosome unit models is utilized; the meiosis process is highly simulated for teaching; migration and separation of chromosomes in the cell division process are greatly reduced; the effect of getting twofold results with halfthe effort can be achieved by understanding the meiosis process in a visual and simplified mode, meanwhile, the scientific thinking of students can be effectively cultivated through the experience ofthe manufacturing process, core concepts are autonomously recognized, the effect of permanent memory is achieved, the learning interest of the students is remarkably improved, and the academic performance of the students is improved.

The invention relates to the field of Internet of Things, and discloses an industrial Internet of Things application construction method supporting multi-scene mapping, and the method comprises the steps: obtaining target data through uploading and/or requesting in the industrial Internet of Things, and after receiving the corresponding target data, carrying out the analysis of the target data; constructing a physical model completely including all equipment possible scenes in a business processing layer of the industrial Internet of Things according to an objectified construction mode and a simplified construction process; constructing a business program structure on the business layer in combination with a domain driver; and mapping a corresponding model attribute and/or a control module in the business processing layer according to an analysis result so as to complete a corresponding function in the target data. The technical effect of constructing an application supporting multi-scene mapping in the industrial Internet of Things is realized.

The invention relates to a rock stratum micro-disturbance continuous excavation method related to a similar physical model. The rock stratum micro-disturbance continuous excavation method comprises the steps of model building and excavation simulation. According to the method, mica powder is added, disturbance to the whole model during excavation is further reduced, the method can be applied to acontinuous excavation occasion, so that experiment errors are further reduced, the manufacturing number of the model is reduced, and thus experiment materials are saved; technical requirements on personnel during excavation are reduced; the excavation method is simpler to operate; consumption of materials is reduced; excavation precision is higher; and experimental design size is easy to realize.

The invention belongs to the field of earthquake physical models, and particularly relates to a geophysical earthquake model. The model is mainly made of epoxy resin, silica gel, reflective powder andother compositions, the reflective powder is proportionally mixed according to different mesh numbers, the longitudinal and transverse wave speed of a model material is controlled by changing the contents of the components, the longitudinal wave speed can be controlled to be gradually changed between 2000m/s and 4000m/s, and the transverse wave speed can be controlled to be gradually changed between 1000m/s and 2000m/s. The model manufactured by adopting a geophysical earthquake model composition and a manufacturing method has good penetrability and good laser receiving reflectivity under theexcitation of ultrasonic waves, good seismic wave reflection data can be obtained when the model is applied to physical simulation tests, and a new method is provided for research of seismic geologicbodies and laser ultrasonic propagation.