摘要:
The invention provides an anion-containing calcium phosphate compound, composition and dental patch comprising the same and their use in remineralizing teeth. The anion-containing calcium phosphate compound has the following formula: (Ca+2)x(anion−a)y(PO4−3)z wherein 2x=(a*y+3z); a is an integer of 1 to 3; and each of x, y and z is not 0.
摘要:
The invention provides an anion-containing calcium phosphate compound, composition and dental patch comprising the same and their use in remineralizing teeth. The anion-containing calcium phosphate compound has the following formula: (Ca+2)x(anion−a)y(PO4−3)z wherein 2x=(a*y+3z); a is an integer of 1 to 3; and each of x, y and z is not 0.
摘要:
A method for preparing amorphous calcium phosphate (ACP) and oral care composition containing ACP prepared by the same are disclosed, wherein the method comprises the following steps: (a) cleaning and pulverizing the oyster shells; (b) sintering the oyster shells to obtain a calcium-containing powder; (c) dissolving the calcium-containing powder in water to obtain a calcium-containing solution; and (d) mixing the calcium-containing solution with a other phosphate-containing solution, to produce amorphous calcium phosphate.The method of the present invention not only can simplify the process and reduce the cost, but also can solve the problem of environment pollution resulting from wasted oyster shells. In addition, the ACP prepared in accordance with the method of the present invention further comprises some trace elements, such as strontium (Sr) and fluoride (F), which can improve dental health.
摘要:
The invention provides a highly aligned and closely packed hollow fiber assembly, wherein the assemblies of fibrous membrane has a width-to-fiber diameter ratio (W/d) larger than 10 and the orientation of the fibers is no larger than +/−10°. Also provided is an electrospinning process for the preparation of the fiber assembly of the invention and its applications.
摘要:
The present invention discloses a camera lens module. The present invention places and fixes an image sensor chip in an opening in a substrate and then assembles a frame, a lens holder and a lens, thereby minimizing the superposition height of the camera lens module and ensuring that the assembly is simpler and more effective.
摘要:
The present disclosure relates to a method of forming a back-side illuminated CMOS image sensor (BSI CIS). In some embodiments, the method comprises forming a plurality of photodetectors within a front-side of a semiconductor substrate. An implant is performed on the back-side of the semiconductor substrate to form an implantation region having a doping concentration that is greater in the center than at the edges of the semiconductor substrate. The back-side of the workpiece is then exposed to an etchant, having an etch rate that is inversely proportional to the doping concentration, which thins the semiconductor substrate to a thickness that allows for light to pass through the back-side of the substrate to the plurality of photodetectors. By implanting the substrate prior to etching, the etching rate is made uniform over the back- side of the substrate improving total thickness variation between the photodetectors and the back-side of the substrate.
摘要:
An optical assembly includes a light path and at least one optic to be positioned in the path. A support arrangement supports the optic having a foot arrangement including at least one foot that receives a direct manipulation with the foot slidingly engaged against a support surface to move the optic relative to the light path. Movement of the foot may move the optic along a predetermined path. The foot defines a footprint for engaging the support surface and receives the direct manipulation in a way which changes the footprint on the support surface to move the optic responsive to changes in the footprint. A movement arrangement may selectively bias the foot against the support surface during a movement mode, intended to permit movement of the foot against the support surface, and in a locked mode, intended to lock the foot against the support surface.
摘要:
Power management methods for integrated circuits are disclosed. A system core block is disposed in a chip and comprises a central processing unit. A power control block is disposed in the chip and comprises a power management mechanism coupled to a power supply to control the supply of power to the system core block. The power management mechanism outputs a power down signal and stops supply of power to the system core block according to a power saving mode setting signal from the central processor unit and starts the supply of power to the system core block according to a power saving mode release signal.
摘要:
An assembled light-guiding module with high light-guiding efficiency is composed of a plurality of light-guiding structures. Each light-guiding structure includes a light-guiding body unit and a light-reflecting microstructure unit. The light-guiding body unit has a light-guiding portion, at least one concave light-entering portion is formed on one end of the light-guiding portion, and a hollow portion is formed on a plane surface of the light-guiding portion. The light-reflecting microstructure unit has a plurality of light-reflecting microstructures disposed in the hollow portion. Thereby, the light-guiding structures are assembled to form a light pipe, wherein the concave light-entering portions are mated to form a light-entering groove on one end of the light pipe, and the hollow portions are mated to form a cavity space that is embedded in the light pipe.
摘要:
The present invention discloses a camera lens module. The present invention places and fixes an image sensor chip in an opening in a substrate and then assembles a frame, a lens holder and a lens, thereby minimizing the superposition height of the camera lens module and ensuring that the assembly is simpler and more effective.