Abstract: A device for CO2 microbubble flooding comprises a microbubble generating device, a stirring and liquid storage device, an injection pump, a gas compressor, a gas-liquid mixer and a pressure stabilizing system, wherein the microbubble generating device adopts an integrally formed multi-layer cylindrical metal powder-sintered porous plate, and the diameters of microchannels on the porous plate are sequentially reduced from inside to outside. A solution containing additives in the storage device is stirred uniformly and then enters into a downhole gas injection base pipe through the gas-liquid mixer to be injected into a stratum, then a carbon dioxide gas compressed by the gas compressor is pumped into the downhole gas injection base pipe through the gas injection pump, and the gas generates microbubbles in situ when passing through the multi-layer porous device under the action of pressure difference.

Abstract: The present invention provides a magnetic fastener composed of a female snap and a male snap. The female snap includes a first locking unit, the male snap contains a second locking unit, and the first locking unit has a projecting piece, on which there is the clamping groove; the male snap contains a base with a clamping hole; the projecting piece passes through the clamping hole. The second locking unit includes a locking arm and a clamping portion, and can move on the base to drive the movement of the locking arm so that the clamping portion is kept away from the clamping groove to unlock the second locking unit. The present invention also discloses a strap that use magnetic fastener for locking and unlocking, which is simple and convenient.

Abstract: The present invention provides an electric lifting curtain, which comprises a cover shell, a shade cloth and an anti-mosquito curtain, wherein first driving components are provided at both ends inside the upper end of the cover shell, the first driving components comprise a first biaxial motor, a first side cover and a first fixed cover plate, first output shafts are provided at both ends of the first biaxial motor, one end of the first output shaft is fixedly sleeved with a first transmission shaft, one end of the first transmission shaft is integrally connected with a first driving wheel, the outer side of the first transmission shaft is sleeved with a first driven wheel, and second driving components are provided at both ends inside the lower end of the cover shell.

Abstract: 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.

Abstract: 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.

Abstract: The present invention provides an electric lifting curtain, which comprises a cover shell, a shade cloth and an anti-mosquito curtain, wherein first driving components are provided at both ends inside the upper end of the cover shell, the first driving components comprise a first biaxial motor, a first side cover and a first fixed cover plate, first output shafts are provided at both ends of the first biaxial motor, one end of the first output shaft is fixedly sleeved with a first transmission shaft, one end of the first transmission shaft is integrally connected with a first driving wheel, the outer side of the first transmission shaft is sleeved with a first driven wheel, and second driving components are provided at both ends inside the lower end of the cover shell.

Abstract: Electrocatalytic methods are disclosed that may include preparing a catalyst ink with nano-structured or micro-structured electrocatalyst particles, casting the catalyst ink onto an electrode and drying the catalyst ink while subjecting the catalyst ink to an electrical field. Electrochemical reactions may then be carried out using the modified electrode as an electrocatalyst.

Abstract: When a transverse force is applied to a stretched string that is fixed by its two ends, the string bends and the strain of the string increases to balance the transverse force. As a result, the axial force along the string can increase much more than the transverse force applied. By developing Fiber Bragg Grating (FBG) accelerometer based on transverse force rather than axial force, the force required for maintaining a high sensitivity is much smaller and thus the size of FBG accelerometers can be dramatically reduced. More importantly, FBG accelerometers based on transverse force have an inherent low cross-axial sensitivity. Simultaneous measurement of acceleration, temperature and displacement is realized by using two under-tensioned FBG. Displacement change is calculated by using the differential of the two FBG results.

Abstract: An LCD TV comprises a housing, an LCD screen panel disposed on the front side of the housing, a first mirror disposed on the back side of the housing and a projection-based backlight system disposed in a lower cabinet of the housing, wherein the projection-based backlight system provides polarized light for the LCD screen panel through the first mirror. The projection-based backlight system can provide uniformly polarized light and increase polarization efficiency as well as be easily achieved by using low-cost optical components.

Abstract: An LCD TV comprises a housing, an LCD screen panel disposed on the front side of the housing, a first mirror disposed on the back side of the housing and a projection-based backlight system disposed in a lower cabinet of the housing, wherein the projection-based backlight system provides polarized light for the LCD screen panel through the first mirror. The projection-based backlight system can provide uniformly polarized light and increase polarization efficiency as well as be easily achieved by using low-cost optical components.

Abstract: A projection display apparatus includes a light source configured to supply light; a polarizing beam splitter for splitting light from the light source into two different polarization state lights; two reflective light panels of which each has a color filter embedded therein and respectively modulates the two polarization state lights so as to simultaneously produce red, green and blue image lights; and a projection lens receiving these color image lights and then projecting them onto a viewing surface so as to form a full-color image.