Abstract: A capacitor active balancing device with high-voltage differential and the method thereof are disclosed. A plurality of cells are connected in series for charging an energy storage unit under a high-voltage differential. The energy storage unit discharges cells of lower power to achieve battery balancing. The mechanism helps improve the efficiency of battery balancing.

Abstract: A method for manufacturing a porous device with restrictive layer comprises the steps of providing a porous structure having a micro pore structure, flattening the porous carrier to form a surface, and forming a restrictive layer on the surface of the porous carrier, a method for manufacturing said restrictive layer includes forming a nickel-chromium alloy layer on the surface of the porous carrier, forming a copper metal layer on the nickel-chromium alloy layer, forming a nickel metal layer having a top surface on the copper metal layer, and processing said nickel-chromium alloy layer, said copper metal layer and said nickel metal layer to form a plurality of channels communicating with the micro pore structure and the top surface. The restrictive effect and damping effect can raise anti-vibration ability of the porous device itself by formation of dual restrictive structure composed of the micro pore structure and the channels.

Abstract: A heat dissipating device of an electromotor is a composite cooling device driven in a powerless manner and used for stirring a cooling liquid applied on a surface of a casing of the electromotor. The heat dissipating device includes a pair of bearings fitted on the casing, and a roller disposed at outer ring seats of the pair of bearings. The roller has a sealed chamber therein, the chamber covers a surface of the casing located in a disposition region of the bearings, and at least one outer blade is disposed outside the roller. Thereby, composite heat dissipating of liquid cooling and air cooling of the electromotor is implemented with a cooling liquid injected into the chamber of the roller and a wind force applied on the outer blade.

Abstract: An alignment method for assembling substrates in different spaces without fiducial mark and its system are provided, and the alignment method has steps of: pre-defining partially standard character regions of two substrates; capturing at least two partially actual images of two substrates in different waiting spaces, respectively; comparing to obtain at least two partially actual character regions of the two substrates, respectively; building actual coordinate systems of the two substrates, respectively; comparing the actual coordinate systems of the two substrates with each other to obtain a set of offset values; moving the two substrates from the different waiting spaces to an alignment-and-installation space based on the set of offset values and a predetermined movement value, respectively; and stacking the two substrates with each other to finish the alignment and installation in the alignment-and-installation space.

Abstract: An interbody cage including a substrate and a plurality of through holes is disclosed. The substrate has a plurality of curve slits, with each of the curve slits having a plurality of sections, wherein a plurality deformable ribs is formed, with each deformable rib between any two curve slits and having a narrow part and a wide part. The plurality of through holes is formed in the wide part of the deformable rib. In use, any adjacent two of the deformable ribs are capable of being bent to depart from each other to define a filling room.

Abstract: An alignment method for assembling substrates without fiducial mark is provided and has steps of: pre-defining at least two partially standard character regions; capturing at least two partially actual images of a first substrate; comparing to obtain at least two partially actual character regions; building an actual coordinate system of the first substrate; comparing the actual coordinate system with a coordinate system of a second substrate to obtain three types of offset values; moving the first substrate to a correct waiting position based on the offset values; ensuring if the first substrate is disposed at the correct waiting position; and stacking the first substrate with the second substrate to finish the alignment and installation. Thus, the alignment method of the present invention can be applied to to-be-installed substrates without any fiducial mark for alignment.

Abstract: An open-end wrench and a method of manufacturing the same are provided, the structure of which includes a body and a cover. The body includes a head portion and a handle portion, and the head portion includes a jaw portion and an opening formed at an inner side of the jaw portion. The cover includes a first plate, a second plate, and a third plate connecting the first plate and the second plate. An external surface of the third plate is formed to a wrench opening. A mouth is defined by external edges of the first plate, the second plate, and the third plate, and the mouth is penetrated by the jaw portion, so the cover wraps the jaw portion and the head portion is imbedded to the cover by using adhesive means.

Abstract: The present invention provides a method for sectionally controlling a cooling efficiency of a mold. The method comprises steps of: (a) configuring at least a cooling passage including a first section having a first heat-dissipating inner surface area and a second section having a second heat-dissipating inner surface area in the mold; and (b) adjusting the first and the second heat-dissipating inner surface areas unequally by using a heat-dissipating element.

Abstract: A bone screw includes a front portion, a rear portion, and a shaft portion. The shaft portion is fixedly joined to the front portion and the rear portion, so as to form an integral bone screw. The Young's modulus of the shaft portion is smaller than that of the front portion and that of the rear portion.

Abstract: A method for treating a surface of a metal implant includes a polishing step, a grafting step. The polishing step includes polishing a surface of a metal implant to remove an uneven, natural oxide layer on the surface of the metal implant and to generate an even oxide layer on the surface of the metal implant. The grafting step includes grafting an anti-adhesion macromolecule on an outer face of the even oxide layer. A covalent bond between the anti-adhesion macromolecule and oxygen atoms on the outer face of the even oxide layer is formed, thus that a macromolecular anti-adhesion layer on the outer face of the even oxide layer can be created. The surface modifying step includes changing a property of the surface of the metal implant with the macromolecular anti-adhesion layer by high temperature and high pressure, providing the metal implant with high hydrophilicity.

Abstract: A thickness adjustment device for thin-film coating is revealed. The thickness adjustment device for thin-film coating includes a coating device, a support set, and a thickness adjustment unit. The coating device consists of a work piece conveyor that delivers a work piece, and a material supply unit that carries a coating material onto a surface of the work piece to form a film. The support set is connected to the coating device while the thickness adjustment unit is inserted through and mounted on the support set. The thickness adjustment unit includes a scrape part disposed correspondingly to the work piece and used for applying coating material to form the film. The thickness of the film is adjusted according to a controlling force or torque of the thickness adjustment unit that presses downward. Thus the film is coated on the work piece evenly and the film coating quality is increased.

Abstract: A method for organizing an electric energy and a kinetic energy of an electric vehicle includes the following steps. A plurality of electro-motor modules having different grade of kinetic energy are provided. A plurality of battery modules having different grade of electric energy are provided. A plurality of electric vehicle performances are preset, and one of the battery modules on the electric vehicle is arranged in accordance with the electric vehicle performances. One of the electro-motor modules on the electric vehicle is arranged in accordance with the electric vehicle performances and the one of the battery modules.

Abstract: The present invention relates to a single-stage zero-current switching driving circuit for ultrasonic motor, which comprises: a buck-boost converter and a zero-current switching resonant inverter. The driving circuit according to the present invention integrates the buck-boost converter and the resonant inverter into a single-stage structure, so that the buck-boost converter and the resonant inverter share an active switch and a trigger signal, and therefore, the circuit is simplified and the loss caused by stage switching is reduced. Moreover, the buck-boost converter operates in a discontinuous-conduction mode (DCM), which allows the circuit to have high power factor, and enables the active switch to be capable of zero-current switching (ZCS), so that the loss caused by switching is largely reduced. In the driving circuit according to the present invention, there's no interaction of power between the buck-boost converter and the resonant inverter, so that the two circuits can be analyzed individually.

Abstract: The present invention relates an electrochemical processing apparatus and a processing method thereof. A reciprocating swing unit is used to drive the processing electrode to process a workpiece, and thus simplifying fabrication of the processing electrode, and shortening processes and reducing costs. In addition, by using a high-frequency reciprocating twist and micro-vibrating unit to drive the processing electrode to perform high-frequency reciprocating twists and micro-vibrations, the processing electrode can perform twist without varying the processing gap. Thereby, the electrolyte in the gap can be perturbed and renewed continuously. Accordingly, bubbles and products produced during electrolysis can be removed sufficiently, enhancing processing precision and surface quality using the processing electrode on processing the workpiece.

Abstract: An extrusion die device includes a first die having a shaping hole. An inner periphery of the shaping hole has a plurality of twisted guiding portions. A second die includes a plurality of guiding holes. A bridge is formed between two adjacent guiding holes. A plurality of tongues extends from a surface of each bridge and each includes an input end face contiguous to the bridge and an output end face whose projection on the surface of the bridge has an angular shift relative to the input end face. A side of the second die is coupled to an input side of the first die. The tongues are received in the shaping hole. Material is squeezed through a passage between each tongue and the inner periphery of the shaping hole and rotates according to the twisting direction of the tongues, forming a hollow object with an integrally formed helical rib.

Abstract: A fluid adjusting device is installed in a valve unit so as to control the volume or pressure of the fluid passing through the valve unit. The fluid adjusting device includes three parts retractably connected to each other and holes are defined through each of the three parts. By expanding or retracting the three parts, the holes can be exposed or hidden to adjust the volume or pressure of the fluid passing through the valve unit.

Abstract: The present invention relates to an electrolytic machining method. For increasing size precision of electrolytic machining method, a metallic mask layer is formed on the surface of a workpiece whose material has high conductivity or volume electrochemical equivalent, whereby the metallic mask layer can be used as a sacrificial layer of electrolytic machining and simultaneously protects the non-machining region of the workpiece so as to reduce lateral machining of the workpiece Consequently, the size precision of electrolytic machining is enhanced. In addition, the feasibility of electrolytically machining a miniature interval between two machined structures is increased as well. In addition, the present invention provides a semifinished electrolytic workpiece, comprising a workpiece and a metallic mask layer formed on the surface of the workpiece. The conductivity or volume electrochemical equivalent of the metallic mask layer is smaller than that of the workpiece.

Abstract: A roller microcontact printing device and a printing method of the device are revealed. The roller microcontact printing device includes a transfer module with a transfer roller and a supply module. The supply module provides an isolating solution and a thin film material to the transfer module to form an isolation layer and a thin film layer in turn on the surface of the transfer roller. Then the thin film is transferred to a substrate by the transfer roller. The microcontact print device and method are used in a roll-to-roll printing process. Thus the production efficiency of the thin film layer on the substrate is improved and the cost is reduced.

Abstract: A thin film of a medical implant includes a surface, a plurality of walls and a plurality of paths. The walls are disposed on the surface, and formed to shapes of arc. The paths are disposed on the surface, wherein each of the paths is located among the walls. The walls and paths have a plurality of holes. According to the thin film of the present disclosure, the walls are formed to shapes of arc, and have no acute anger, whereby the biological cells can helpfully grow and attach on the thin film quickly. Furthermore, the thin film has the holes, which provide cell tissue, such as pseudopod, tentacle, etc. of the biological cells to grow and attach therein, whereby the biological cyto-affinity of the thin film can be increased so as to increase the biological cyto-compatibility of the medical implant.

Abstract: A spinal implant structure includes a hollow cylinder and a biodegradable polymer membrane. The hollow cylinder is implanted in a bone damaged part of human vertebra. The biodegradable polymer membrane is formed to a part of a surface of the hollow cylinder. Thus, the biodegradable polymer membrane blocks invasion of soft tissues, and then the bone fillers integrated with vertebra are maintained without loss.