Abstract:
An apparatus for supplying a chemical solution includes a mother tank storing a chemical solution, an intermediate tank disposed in a higher position than the mother tank with a first height difference (h), and the intermediate tank is adapted to receive a fixed amount of chemical solution from the mother tank. The apparatus further includes a bubbling tank disposed in a higher position than the intermediate tank with a second height difference (h′) and the bubbling tank is adapted to receive the fixed amount of the chemical solution from the intermediate tank.
Abstract:
A Plasma Display Panel (PDP) that reduces a discharge voltage includes: a substrate; pairs of sustain electrodes arranged on the substrate; and a dielectric layer covering the pairs of sustain electrodes, the dielectric layer having grooves and the grooves having a plurality of protrusions arranged thereon.
Abstract:
A plasma display panel has connection passage units that facilitate exhaust and injection processes during manufacture of the plasma display panel. The plasma display panel includes a first substrate, a second substrate facing the first substrate, the first and second substrates being spaced apart by a predetermined distance, barrier ribs for defining a plurality of discharge cells in a space between the first substrate and the second substrate, first and second electrodes extending parallel to each other on the first substrate, and a first dielectric layer covering the first and second electrodes, the first dielectric layer including a field concentration groove between the first and second electrodes within each discharge cell, and connection passage units for connecting field concentration grooves in adjacent discharge cells
Abstract:
An apparatus and method is provided for transmitting a signal in a communication system. Upon transition to a power saving mode, a lower layer unit sends a notification indicating the transition to the power saving mode to an upper layer unit. Upon receipt of the notification indicating the transition, the upper layer unit activates a traffic filter having a filtering condition. If upper layer traffic is generated after activating the traffic filter, the upper layer unit filters the upper layer traffic using the traffic filter, and processes the upper layer traffic according to the filtering result.
Abstract:
Provided is a position measuring system and method using a Wireless Broadband (WiBro) signal. The position measuring system measures the position of a terminal using relative delay information that is a parameter of the WiBro signal, used for a hand-over. Since the position of a terminal is measured using a parameter for a hand-over, additional data measurement is not required for the position measurement. Furthermore, efficiency in the use of a parameter of a WiBro system can be improved by using a parameter used only in the hand-over for position measurement.
Abstract:
A plasma display panel including common and scanning electrodes arranged on a first substrate. A first dielectric layer covers the common electrodes and the scanning electrodes, and it includes groove shaped field concentration units. The width of end parts of a field concentration unit is greater than the width of the central part of the field concentration unit.
Abstract:
A function for identifying a current position of a user and providing information about a route to a desired destination is implemented. A mobile communication terminal with a navigation system accurately determines an initial position using a global positioning system (GPS) satellite constellation and a GPS signal intensity and provides a personal navigation service with an improved accuracy.
Abstract:
Disclosed is a method for determining an existence of a repeater using a portable Internet signal and for measuring a position of a mobile station using the same, the method receiving a portable Internet signal and a mobile communication signal from a base station, calculating distances between a mobile station and the base station according to the received portable Internet signal and the received mobile communication signal, and determining the existence of the repeater by comparing the calculated distances with each other. Receiving a mobile communication signal and the portable Internet signal, calculating distance values between the mobile station and a base station according to the received mobile communication signal and the received portable Internet signal, determining a distance value to be used for measurement of the position of the mobile station among the calculated distance values according to existence of errors in the portable Internet signal and the mobile communication signal, and measuring the position of the mobile station using the determined distance values.
Abstract:
Provided is a service system for providing context information based on a ubiquitous sensor network and a method thereof. The context information providing service system includes: a sensing block for collecting context information of each user; an intermediating block for changing the user context information transmitted from the sensing block into a request to store the request in a context recognizing block, transmitting the request to the context recognizing block, and transmitting a service request to the context recognizing block; and a context recognizing block for storing context information of each user according to a context information storing request transmitted from the intermediating block, and providing a relevant service by using the user context information.
Abstract:
Magnets, which have a surface facing a coil, through which current flows, generate magnetic flux to be emitted toward the coil in the direction of the normal line of the surface of the magnets toward the coil, the magnets having a recession or protrusion formed at the center thereof. The magnets form magnetic flux to be regularly generated and thus can generate uniform electromagnetic forces through interaction with current.