OVERALL HYDRAULIC PERFORMANCE PREDICTION METHOD FOR SINK-TYPE DISHWASHER

    公开(公告)号:US20240281568A1

    公开(公告)日:2024-08-22

    申请号:US18418341

    申请日:2024-01-22

    IPC分类号: G06F30/17 A47L15/00 G01M99/00

    摘要: Method for predicting the overall hydraulic performance of a sink-type dishwasher. Process begins with unsteady numerical computation on a dishwasher pump under static conditions to obtain a characteristic pump curve. Using this curve, rotation velocity adaptation coefficient (Ad) and axial velocity coefficient (Bd) are determined. Mapping relationship is established between composite superposition virtual impeller and composite impeller. Passive rotation velocity of the volute and the nozzle flow rate are calculated using GMO model and virtual impeller. A jet mass source is established, using the nozzle flow rate and the volute's passive rotation velocity as boundary conditions. This leads to a non-submerged rotating jet flow computation with a multi-nozzle setup using the VOF method. This approach streamlines the dishwasher's intricate multi-physics, conserves computing resources, and effectively resolves issues related to free surface divergence and estimating the volute's passive rotation speed, leading to an accurate prediction of the dishwasher's overall hydraulic performance.

    METHOD FOR SEPARATING MIGRASOMES FROM MACROPHAGES

    公开(公告)号:US20240336894A1

    公开(公告)日:2024-10-10

    申请号:US18402999

    申请日:2024-01-03

    IPC分类号: C12N5/0786

    摘要: A simple and efficient method for separating migrasomes from macrophages is provided. The method separates migrasomes having a diameter range of 0.5 micrometers (μm) to 3 μm by intercepting through a filter and eluting through reverse filtration successfully. The separated migrasome has a vesicle-liked structure and wrinkles on its surface, and the separated migrasome has a diameter over 500 nanometers (nm). The separated migrasomes express their characteristic proteins PIGK, EOGT, and TSPAN4, but do not express specific markers TSG101 and ALIX of EVs, indicating that the separated migrasomes are a unique type of vesicles distinct from extracellular vesicles (EVs). The integrity of ribonucleic acids (RNA) carried by the migrasomes is not affected. The method for separating migrasomes from macrophages has the characteristics of simplicity, high efficiency, good controllability, good repeatability, and low cost, and large special equipment is not needed.

    DEVICE AND METHOD FOR MEASURING AND CALIBRATING GROUND PRESSURE OF SEEDING DEPTH LIMITING WHEEL

    公开(公告)号:US20240324494A1

    公开(公告)日:2024-10-03

    申请号:US18570637

    申请日:2023-02-09

    IPC分类号: A01C7/20 A01C5/06

    CPC分类号: A01C7/205 A01C5/062 A01C7/203

    摘要: A device for measuring and calibrating the ground pressure of the seeding depth limiting wheels includes: a main body, connected to a pair of depth limiting wheels; a pressure adjusting member, arranged on the main body and configured to adjust a pressure of the depth limiting wheels to ground; a pressure sensor, arranged on the main body and configured to detect an actual pressure output by the pressure adjusting member; and a pressure acquisition calibrator, configured to detect a ground pressure applied by the depth limiting wheels on ground; and automatically fit a plurality of actual pressures and a plurality of ground pressures to establish a model for measuring ground pressure of a pair of depth limiting wheels. The device can automatically acquire a plurality of actual pressures and a plurality of ground pressures to establish a model for measuring ground pressure of a pair of depth limiting wheels.

    Bionic sweat gland and bionic skin

    公开(公告)号:US12090648B2

    公开(公告)日:2024-09-17

    申请号:US17914392

    申请日:2021-09-15

    IPC分类号: B25J19/00 F28D15/04

    CPC分类号: B25J19/0054 F28D15/046

    摘要: A bionic sweat gland and a bionic skin include a shell and a porous medium. A heat dissipation pipe is arranged inside the shell, that is filled with porous media. The pores formed by the porous medium in the heat dissipation pipe gradually decrease along the evaporation flow direction and the gap of the porous medium is filled with evaporation liquid. The shell is a permeable structure, which is used to absorb evaporation liquid from the environment. The top of the shell is provided with a number of through holes connected with the heat dissipation pipe for discharging evaporation liquid to the outside. The bionic sweat gland and the bionic skin can adapt to the effect of tensile and shear forces generated on the surface of flexible materials such as electronic skin during use.

    Grapevine soil-cleaning device and engineering machinery provided installed with soil-cleaning device

    公开(公告)号:US12089514B2

    公开(公告)日:2024-09-17

    申请号:US17042688

    申请日:2019-03-06

    摘要: A grapevine soil-cleaning device and engineering machinery installed with the soil-cleaning device, comprising an air blower (4), an air vent direction reversal device, a soil-retaining device, an angular sensor (7) and a controller (19). The controller (19) is connected to the air blower (4), the angular sensor (7), the air vent direction reversal device and the soil-retaining device respectively. The present device achieves non-contact soil cleaning by blowing air, and has the advantages of no harmful impact on buds and branches, one-time cleaning, and highly efficient soil cleaning. The air vent direction reversal device may achieve a consistent air-blowing direction when the grapevine soil-cleaning device moves among rows of the grapevine. The soil-retaining device may hold back the blown soil and reduce the displacement distance of the blown soil. An auxiliary air pipe is provided below a main air pipe to assist soil-cleaning operations and avoid generating pits on a ridge due to concentrated wind power of the main air pipe. The air vent direction reversal, adjustment of the air power of the air blower and automated direction reversal of the soil-retaining device when moving among ridges are achieved by using the angular sensor (7) and the controller (19), thus achieving a high level of technological intelligence.