摘要:
A holder for a seamless control cord of a curtain for quickly fixing the seamless control cord or a bead chain is composed of a base seat, an outer cover and elastic members and fixed on a wall face by fixing members. The base seat and the outer cover are respectively formed with two perforations. Each perforation has a cord passage formed on the same axis. When holding the control cord, the seamless control cord is directly passed through the cord passage of the outer cover into the perforation and then passed through the cord passage of the base seat into the perforation. Then, the elastic members push the outer cover to misalign the two perforations so as to hold the control cord and fully fix the control cord. Under such circumstance, the control cord is prevented from swinging or a child cannot play the control cord.
摘要:
A lathe control system used for three dimensional curved surface machining includes an input module, a control module, a work table, a feeding module, a first sliding module, a second sliding module, and a cutter. The control module is electrically connected with the input module, the feeding module, the first sliding module, and the second sliding module. The first sliding module drives the feeding module to move along a first direction. The second sliding module drives the feeding module to move along a second direction perpendicular to the first direction. The cutter is positioned on the feeding module. The feeding module is capable of driving the cutter to move back and forth along a third direction under the control of the control module. The third direction is perpendicular to first and second direction.
摘要:
A feeding device includes a tool holder, a cutter, a feeding mechanism and a mounting seat. The cutter is positioned on the tool holder. The mounting seat has at least one guiding portion. The tool holder is slidably engaged with the at least one guiding portion. The feeding mechanism includes at least two drivers. Each driver includes a forcer and a stator. The forcers are mounted in the mounting seat, the stators are fixedly positioned on the tool holder. Interactions between alternating magnetic fields produced by the forcers and magnetic fields produced by the stators drive the tool holder and the cutter to backwards and forwards under precise control along the guiding portion.
摘要:
A method, apparatus, and computer program products for controlling gain in a scintillation detector. Calibration count rates, each representing an integral count rate above a different threshold, are obtained from a photomultiplier tube. Photomultiplier tube gain is adjusted if a result from evaluating a relationship of calibration count rates varies from an expected result based on integral count rate versus threshold for a reference peak in the energy spectrum of the radiation source. An additional, different relationship may also be evaluated and an additional gain adjustment performed when a result indicates that the calibration count rates are not from the reference peak. A same radiation source may be used for collecting test counts and calibration counts.
摘要:
A drainage device includes a closed chamber, a liquid pumping mechanism, and a liquid discharge mechanism. The drainage device can also include a controller. The closed chamber may be filled with liquid and gas for discharge. The liquid pumping mechanism pumps the liquid in the closed chamber, and prevents the liquid in the liquid pumping mechanism from flowing back to the closed chamber. The liquid discharge mechanism discharges the liquid in the liquid pumping mechanism to the outside, and prevents outside air from flowing into the closed chamber.
摘要:
A connector, comprising an insulative body, a plurality of conduction terminals, and a shielding shell. The tongue panel of the insulative body comprises a first surface and a second surface. The conduction terminals are arranged as first conduction terminals in the front row and second conduction terminals in the back row, the first conduction terminals comprising a first contact portion, a bending portion bent and extended from the rear edge of the first contact portion, a first fixing portion and a first welding portion. The first surface of the tongue panel is provided with a first receiving slot for receiving the first fixing portion and a recess portion disposed at the front end of the first receiving slot, the recess portion is formed as an opening for the first contact portion to nm through the opening from the first surface to be fixed onto the second surface.
摘要:
An electronic device includes a main body; at least one proximity sensor arranged in the main body to detect a motion of a user in a predetermined range from the main body. A memory arranged in the main body store a relationship table defining a relationship between an operation event and an executable function. The operation event includes: the times of the proximity of a user to the main body, the duration of a stationary state of the user relative to the main body, and the distance of the movement of a user with respect to the main body. In addition, includes a processor receiving data from the at least one sensor determining an operation event and executing an executable function according to the relationship table.
摘要:
The present invention is related to a numerical simulation method for aircraft flight-icing. This invention mainly includes an algorithm for velocity decomposition on the water film in simulating the air-supercooled water droplets movement using the single fluid two-phase flows system; an algorithm for tracking the icing interface and obtaining the temperature distribution inside the ice layer using the grid refinement scheme; the computing procedure using above-mentioned algorithms based on the fixed computing grid.
摘要:
Numerical methods for simulating subsonic flows and solving inverse problems based on the new two-dimensional Euler equations in Lagrangian formulation. A transformation to derive the Euler equations in Lagrangian plane to simplify the computational grid and to minimize the numerical diffusion caused by the convective flux. Constructed is a numerical scheme, the dimensional-splitting with hybrid upwind flux operators, where the two-dimensional Riemann problem was solved in the Lagrangian plane. The method, solving the inverse geometry shape design problem in Lagrangian plane, gives the flow filed results and the geometry shape concurrently.
摘要:
A method and system for treating domestic sewage and organic garbage are provided. The method comprises the steps of: multi-phase separation, retting, generating sewage gas, and optional biological denitrification and dephosphorization, which can convert the domestic sewage and organic garbage into clear water, sewage gas, organic manure and sludge. The system comprises a multi-phase separation device, a retting device, a sewage gas generating device and a biological denitrification and dephosphorization device, which can treat the domestic sewage and organic garbage effectively and environmental friendly to achieve a reduction in pollution emission.