Abstract:
The present invention discloses an adsorption type refrigerator that automatically determines the switchover point. The adsorption type refrigerator includes a first vacuum chamber, a second vacuum chamber, a third vacuum chamber and a waterway structure. The waterway structure is connected to a first adsorption bed in the first vacuum chamber and a second adsorption bed in the second vacuum chamber. The waterway structure simultaneously conveys hot water into the first adsorption bed and cold water into the second adsorption bed, or simultaneously conveys cold water into the first adsorption bed and hot water into the second adsorption bed so as to allow the first and the second adsorption beds to conduct adsorption and desorption alternatively. This alternation creates pressure variation in the three vacuum chambers, which is then utilized to automatically determine the switchover point at which the refrigerator can provide and maintain a cold, stable environment.
Abstract:
An active device array substrate and a fabricating method thereof are provided. A first patterned conductive layer including separated scan line patterns is formed on a substrate. Each scan line pattern includes a first and second scan lines adjacent to each other. Both the first and the second scan lines have first and second contacts. An open inspection on the scan line patterns is performed. Channel layers are formed on the substrate. A second patterned conductive layer including data lines interlaced with the first and second scan lines, sources and drains located above the channel layers, and connectors is formed on the substrate. The sources electrically connect the data lines correspondingly. At least one of the connectors electrically connects the first and second scan lines, so as to form a loop in each scan line pattern. Pixel electrodes electrically connected to the drains are formed.
Abstract:
A voltage regulator for a fuel cell and a method therefor are disclosed. Inputs of converters are connected to the fuel cell in parallel and outputs of the converters are connected between a positive terminal and a negative terminal of a load in series. The output of the fuel cell is converted by the converters and combined to output as an output voltage, which is provided to the load as a working voltage of the load. A control circuit in the voltage regulator receives a feedback signal related to the output voltage to feedback control the converters, such that each converter outputs the same constant voltage.
Abstract:
A grid-connected power conversion circuitry and a power conversion method thereof are disclosed. A DC-DC converter converts a renewable energy into a stable and constant DC power. A DC-AC inverter inverts the DC power into an AC power. The duty cycle of the DC-DC converter is adjusted based on a feedback signal related to the DC power, thereby stabilizing the output of the DC-DC converter. The duty cycle of the DC-AC inverter is adjusted based on a feedback signal related to the AC power as well as the phase angle of grid power that is in turn detected by a phase angle processor. Consequently, the AC power can be synchronized with the grid power in frequency. Therefore, the grid system provides auxiliary power when the renewable energy is insufficient, and the AC power output by the DC-AC inverter is synchronized with the grid power in frequency.
Abstract:
The present invention discloses a ventilation system for tunnel engineering. The ventilation system is for use in a tunnel having at least one first shaft and at least one second shaft. The ventilation system includes a heat collecting device, a cooling device, and at least one piping system. The piping system is connected to the heat collecting device and the cooling device. A portion of the piping system coils inside the first and second shafts. Increasing the temperature in the first shaft and/or decreasing the temperature in the second shaft introduces ambient air into the tunnel via the first and second shafts by natural convection, thereby decreasing and maintaining the temperature in the tunnel and renewing air therein. The ventilation system advantageously features low power consumption and low manufacturing costs and is fit for use in long-distance tunnel engineering that requires multi-point installation of the ventilation system.
Abstract:
Switching control systems and methods are presented for controlling power conversion systems to provide electrical power to a grid or other load in which a synchronous machine is driven by a wind turbine or other prime mover to provide generator power to a switching type current source converter (CSC), with a current source rectifier (CSR) of the CSC being switched to provide d-axis control of the synchronous machine current based on grid power factor feedback, and with a current source inverter (CSI) of the CSC being switched to provide leading firing angle control and selective employment of dumping resists to dissipate excess generator energy in a fault mode when a grid voltage drops below a predetermined level.
Abstract:
A radiator cover includes a base seat with a mounting portion. A thermometer includes a temperature-indicating portion disposed within the mounting portion, an externally threaded portion extending downwardly from the temperature-indicating portion and having a bottom surface, and a sensor portion extending downwardly from the bottom surface. A threaded seat includes an internally threaded portion engaging the externally threaded portion, and an annular inner surface disposed below the internally threaded portion and confronting the bottom surface. An annular water seal is disposed between the bottom surface and the annular inner surface of the threaded seat to establish a water-tight seal therebetween.
Abstract:
An improved system and method for testing a sensor of a portable electronic device based on expected sensor data and not timing information. The system and method for testing a sensor of a portable electronic device retrieves sensed data from the portable electronic device (i.e. device under test) after the device has traversed a series of test areas or zones. The sensed data is compared against a set of expected sensor data patterns to determine which components of the sensed data correspond to each test area or zone. The sensor of the portable electronic device may be tested based on an association of the test areas or zones with segments of the sensed data.
Abstract:
The present invention comprises a new class of compounds useful for the prophylaxis and treatment of protein kinase mediated diseases, including inflammation and related conditions. The compounds have a general Formula I wherein A, R1, R2, R3, R4, R5, R6, X and n are defined herein. The invention also comprises pharmaceutical compositions including one or more compounds of Formula I, uses of such compounds and compositions for treatment of p38 map kinase mediated diseases including rheumatoid arthritis, psoriasis, chronic obstructive pulmonary disease, pain and other inflammatory disorders, as well as intermediates and processes useful for the preparation of compounds of Formula I.
Abstract:
A hydrogen storage device includes a first casing and a second casing. A hydrogen storage material is disposed in a receiving space formed inside the first casing. The second casing encloses the first casing such that the first and second casings jointly form an outer flow channel structure. Furthermore, the first casing has a surface extended inward of the first casing to form a recess. By disposing a baffle inside the recess, a curved inner flow channel structure is formed in the recess of the first casing. With this simple structure, a heat exchange substance can exchange heat with the hydrogen storage material, which is disposed inside the receiving space, via both the outer flow channel structure and the curved inner flow channel structure. Therefore, the heat exchange rate can be increased to accelerate the storage and release of hydrogen.