Abstract:
Provided are a direct formic acid fuel cell and a method of operation thereof capable of maintaining performance constantly through implementing the real time measurement and control of formic acid concentration.
Abstract:
A backlight assembly comprises a light source unit emitting light, a heat-blocking plate disposed over the light source unit to prevent heat generated from the light source unit from being upwardly transmitted, and a receiving container receiving the light source unit and the heat-blocking plate. The receiving container includes a bottom plate and a plurality of sidewalls. Each of the sidewalls extends from a side of the bottom plate and has openings formed through each of the sidewalls. The openings are formed over the heat-blocking plate.
Abstract:
A display apparatus includes a backlight assembly, a first display panel assembly and a second display panel assembly. The backlight assembly includes a plurality of lamps disposed substantially parallel with each other. The backlight assembly emits first light through a first face and second light through a second face. The first display panel assembly is disposed adjacent to the first face to receive the first light. The second display panel assembly is disposed adjacent to the second face to receive the second light. The backlight assembly may further include a driving inverter electrically connected to first and second ends of the lamps to provide the lamps with driving voltages. Therefore, the backlight assembly applies light to the first and second display panel assemblies to reduce the number of backlight assemblies. Therefore, costs for manufacturing a display apparatus may be reduced.
Abstract:
A liquid crystal display device includes a liquid crystal panel including a pad electrode, a tape circuit substrate and an anisotropic conductive film. The pad electrode receives one of a driving signal and a power supply voltage signal. The tape circuit substrate includes a base film made of an insulating material, and a signal line formed on the base film and having a slit at a portion of the signal line which overlaps the pad electrode of the liquid crystal panel. The anisotropic conductive film connects the outer lead with the pad electrode.
Abstract:
Disclosed is a device for assembling and disassembling a gas rifle and a gas tank to and from each other, respectively. The device comprises a gas tank having a rear cap which has an adjusting valve for adjusting a gas discharging amount and a one-touch type connection pipe which has an inclined surface at a distal end thereof and a circumferential bearing groove; a gas discharging pipe; a fixed pipe having a plurality of holes and a plurality of balls which are fitted into the plurality of holes, respectively, the plurality of balls being able to be moved between a retracted position and a projected position, being engaged into the circumferential bearing groove at the retracted position and being disengaged from the circumferential bearing groove at the projected position; a control pipe for controlling the movement of the balls between the retracted position and the projected position, thereby to allow the gas tank to be assembled to the gas discharging pipe when the balls are in the retracted position and disassembled from the gas discharging pipe when the balls are in the projected position; and a contact valve being brought into close contact with the inclined surface when the gas tank is assembled to the gas discharging pipe and being detached from the inclined surface when the gas tank is disassembled from the gas discharging pipe.
Abstract:
Disclosed is an assembled helical turbine system, which can prevent its assembly/disassembly from being hindered by a rotational force generated during the assembly/disassembly process. The assembled helical turbine system includes a helical turbine formed with a plurality of blades in such a manner as to continuously generate a rotational force under unidirectional or multidirectional fluid flow; a housing assembly for rotatably supporting the helical turbine while surrounding the helical turbine; stoppers formed on a peripheral surface of the housing assembly in such a manner as to protrude to a predetermined height from the peripheral surface; and a housing supporter for supporting the housing assembly in such a manner that the housing assembly can be inserted into and withdrawn from the housing supporter, the housing supporter having catch grooves that are recessed in a shape corresponding to the stoppers so as to fix the stoppers.
Abstract:
Disclosed is a helical turbine power generation system for generating electricity by using a helical turbine and a synchronous generator, the system including: a helical turbine rotatably provided in a frame so as to continuously generate rotation force under unidirectional or multidirectional fluid flow; a step-up gear for increasing a rotational velocity of the helical turbine up to a level required for generating electricity; a fluid coupling for preventing the rotational velocity increased by the step-up gear from increasing above a required velocity at a temporarily high rate of fluid flow; and a synchronous generator for generating electricity by using the rotational velocity transferred from the fluid coupling. Therefore, it is possible to reduce equipment costs and to prevent environmental pollution.
Abstract:
Disclosed is an assembled helical turbine system, which can prevent its assembly/disassembly from being hindered by a rotational force generated during the assembly/disassembly process. The assembled helical turbine system includes a helical turbine formed with a plurality of blades in such a manner as to continuously generate a rotational force under unidirectional or multidirectional fluid flow; a housing assembly for rotatably supporting the helical turbine while surrounding the helical turbine; stoppers formed on a peripheral surface of the housing assembly in such a manner as to protrude to a predetermined height from the peripheral surface; and a housing supporter for supporting the housing assembly in such a manner that the housing assembly can be inserted into and withdrawn from the housing supporter, the housing supporter having catch grooves that are recessed in a shape corresponding to the stoppers so as to fix the stoppers.
Abstract:
Disclosed is a unit cell of a honeycomb-type solid oxide fuel cell (SOFC) having a plurality of channels. The channels include cathode channels and anode channels. The cathode channels and anode channels are set up alternately in the unit cell. A collector is installed inside each of the cathode channels and the anode channels, and a packing material is packed into the channels having the collector. Disclosed also is a stack including the unit cells and methods for manufacturing the unit cell and the stack.
Abstract:
Provided are a direct formic acid fuel cell capable of maintaining performance constantly through implementing the real time measurement and control of formic acid concentration.