摘要:
A bipolar plate for fuel cell has an electrochemical reaction region and a non-electrochemical reaction region connected together. The electrochemical reaction region is at the center position of the bipolar plate. The non-electrochemical reaction region is made of non-conductive material and is located around the electrochemical reaction region. The bipolar plate reduces loss, raises work efficiency, and is easy to produce. The material cost of the bipolar plate is effectively reduced.
摘要:
The present invention discloses a system and method for on-line measuring a burden surface in blast furnace to get burden surface information. The system comprises laser emitter(s) disposed above the burden surface and emitting laser beam(s) to continuously scan at least one portion of the burden surface; a video camera configured to shoot burden surface images, each of which comprises a detection point pattern formed by the laser beam incident on the burden surface; an image processing device configured to receive the burden surface images transferred from the video camera and output the burden surface information. As compared with the prior art, the present invention may substantially reduce the cost of the measuring system and obtain burden surface information sufficiently accurate with a large number of actual detection points. Furthermore, the system for on-line measuring a burden surface in blast furnace according to the present invention may use less number of laser emitter (even one laser emitter), so it is more advantageous to minimize the system and may simplify laser emitter protective measures.
摘要:
A time-limited power supply system for providing power to an electronic device includes a first input module, a controlling module, a switch module, a display module, and an alarm module. The first input module inputs a power on time signal in the controlling module. The controlling module receives the power on time signal and outputs a power on control signal accordingly. The switch module receives the power on control signal and provides an AC voltage to the electronic device for a set time. The display module displays the time for which the power on state will continue. The controlling module outputs an alarm signal when a remaining power on time is less than a certain period of time. The alarm module issues an audible warning to remind the user that the power on time of the electronic device may need to be extended.
摘要:
A power supply test system for testing reliability of a power supply includes a voltage input circuit, a voltage storage circuit, a voltage output circuit, and a discharge circuit. The voltage input circuit receives a first AC voltage, and converts the first AC voltage to a first DC voltage to charge the voltage storage circuit. The voltage storage circuit receives the first DC voltage, and discharges to the power supply via the voltage output circuit when the voltage storage circuit is fully charged. The voltage storage circuit discharges remaining voltages via the discharge circuit when the test is complete.
摘要:
A power circuit includes an input terminal receiving alternating current, a first AC filtering circuit connected to the input terminal, a bridge rectifier circuit, a DC filtering circuit, a DPDT switch, and an output terminal. Two input ends of the bridge rectifier circuit are connected to the first AC filtering circuit. The DPDT switch includes a first pair of pins, a second pair of pins, and a pair of output pins. The first pair of pins is connected to the DC filtering circuit. The second pair of pins is connected to the input terminal. The DC filtering circuit is connected to the pair of output pins of the DPDT switch. The first pair of pins is switched on to enable the output terminal to output direct current, and the second pair of pins is switched on to enable the output terminal to output alternating current.
摘要:
This invention provides truncated Cry 35 proteins that surprisingly and unexpectedly have increased pesticidal activity as compared to full-length Cry 35 proteins. The subject invention also includes polynucleotides that encode these truncated proteins, transgenic plants comprising a truncated gene of the subject invention, and transgenic plants that produce these truncated proteins. This invention further provides methods of controlling plant pests, including rootworms, with these truncated proteins. The truncated Cry35 proteins of the subject invention are preferably used in combination with Cry34 proteins, which are known in the art. Various surprising advantages of the subject invention will be apparent in light of this disclosure.
摘要:
A type of fuel cell bipolar plates is constructed with multiple splitting and deflecting flow channels through which reactant flows are constantly contracted, expanded, split into more than one flow streams, and deflected in flow directions for improving reactant flow distribution, diffusion and water management.
摘要:
An optical motion tracking device (10) includes a photo detector array (18) comprised of highly sensitive photo sensors coupled to a computational circuit (19) inside a casing (11). The photo detector array (18) detects optical features of a surface (25) using ambient light reflected from or propagated through the surface (25) and transmitted into the casing through an aperture (15). Protrusions (14) on the bottom (10) lifts the device (10) from the surface (25) and allow the ambient light to illuminate the surface (25). A nontransparent sidewall (17) encloses a light path from the aperture (15) to the photo detector array (18) to reduce light interference. A reflective band (32) near the aperture (15) to increases the illumination of the surface (25). The computational circuit (19) calculates the correlation between the images from the photo detector array (18) to track the motion of the device (10).
摘要:
An electrical depilator includes a main body (1) and a head (2) mounted on the main body. The head includes a hair-plucking assembly (20) mounted on a frame (7), and with a shell (16) covering thereon. The hair-plucking assembly includes a plurality of discs (11) and discs carriers (10), a transmission gear (9), and a bearing cover being fitted over an arcuate shaft (5) and rotating in sync. Each discs carrier bears one disc. Each disc has a substantially circular and continuous circumference (115), and an undulating surface (112). Upper portions (110) and lower portions (111) for grasping and removing hair are radially and alternately arrayed to configurate such undulating surface of the disc. The electrical depilator can steadily and smoothly removing hair at a speed increased at least 3 times.
摘要:
A method, system and computer program product for efficient storage of data for use by an application, including a set top box. The set top box including a physical memory, a bulk storage device, and a memory management unit (MMU) coupled between the application and the physical memory and the bulk storage device. The physical memory and the bulk storage device are configured to store the data. The MMU is configured to translate a virtual address provided by the application to a physical address used by one of the physical memory and the bulk storage device.