摘要:
A compound that is a polymerization product of a compound composition that contains a diisocyanate-based compound and an aromatic polyol, a composition that contains the compound and an interpenetration polymer, a fuel cell electrode including either the compound or the composition, a fuel cell electrolyte membrane including either the compound or the composition, and a fuel cell including at least one selected from the group consisting of the fuel cell electrode and the fuel cell electrolyte membrane.
摘要:
Provided are a novel distribution automation system and its voltage control method, which can supply a stable voltage to a user by properly adjusting the settings of a control device so as to compensate for reactive power at each load terminal. The voltage control method includes: a first step of modeling a distribution system in the form of a distribution load based on constants of four terminals according to the connection type of each node and a distribution line, which constitute the distribution system; a second step of determining a formula for estimating the magnitude of a voltage at a node from a current value of an adjacent node; a third step of determining an objective function including the magnitude of the voltage, calculated through the formula determined in the second step, and a control variable for controlling the magnitude of the voltage; and a fourth step of calculating a value of the control variable to allow the determined objective function to have a minimum value and applying the calculated value to each voltage control device provided in the distribution system.
摘要:
An organic light emitting display device includes an organic light emitting display panel, and a driver that drives the organic light emitting display panel. The driver applies a first power voltage and a second power voltage to the organic light emitting display panel, the first power voltage is lower than the second power voltage during a first period, and the first power voltage is higher than the second power voltage during a second period.
摘要:
A non-aqueous electrolyte solution for a lithium secondary battery includes a lithium salt and an organic solvent. Based on 100 parts by weight of the non-aqueous electrolyte solution, the non-aqueous electrolyte solution includes 1 to 5 parts by weight of sultone compound having a carbon-carbon unsaturated bond in a cyclic structure; 1 to 5 parts by weight of cyclic carbonate compound with a vinyl group; 5 to 10 parts by weight of cyclic carbonate compound that is substituted with halogen; and 1 to 5 parts by weight of dinitrile compound. This non-aqueous electrolyte solution improves stability of a SEI film formed on a surface of an anode of a lithium secondary battery and thus improves normal temperature cycle performance and high temperature cycle performance.
摘要:
The present invention relates to mobile communication devices and a method of controlling the same. The mobile communication device includes a plurality of keys for entering different commands in first and second operating modes, memory for storing key mapping information in which commands corresponding to respective inputs of the plurality of keys are mapped every operating modes, and a mode switch detection unit for determining whether to switch an operating mode from the first operating mode to the second operating mode. When the operating mode is switched, a controller controls some of the plurality of keys to switch to key mapping information used in the second operating mode and the remaining keys to maintain key mapping information used in the first operating mode, based on the key mapping information.
摘要:
An organic light emitting display device includes a scan driving unit supplying a first scan signal and a second scan signal to each of a plurality of scan lines; a data driving unit supplying data signals to each of a plurality of data lines to be synchronized with the second scan signal; pixels positioned at intersections of the scan lines with the data lines, receiving bias power when the first scan signal is supplied, and receiving the data signals when the second scan signal is supplied.
摘要:
An organic light emitting diode display includes at least one pixel circuit, a scanning drive unit connected to the pixel circuit through a scan line and generating a selection signal to be applied to the pixel circuit, and a data drive unit connected to the pixel circuit through a data line and applying a data voltage to the pixel circuit. The data drive unit includes a first line to which the data voltage is applied and a demultiplexer connected between the first line and a first end of the data line, the demultiplexer time-divisionally applying the data voltage applied to the first line to the data line according to a demultiplexing signal. In one horizontal cycle, at least a portion of a period in which the demultiplexing signal is applied and at least a portion of a period in which the selection signal is applied overlap each other.
摘要:
A conductive composition, a polymer obtained from the conductive composition, a method of preparing the composition, an electrode and electrolyte membrane of a fuel cell, each including at least one of the composition and the polymer, and a fuel cell including at least one of the composition and the polymer. The conductive composition includes at least one benzoxazine-based compound with a conductive functional group and a cross-linkable compound. A composition including a conductive functional group and a polymer that is a polymerization product of the composition demonstrates good resistance to chemicals, heat, and acid. An electrode for fuel cells that includes the same demonstrates improved electrical conductivity.
摘要:
A hyper-branched polymer, which is a product obtained by performing condensation polymerization reaction of a hyper-branched polymer composition including a diisocyanate-based compound and a dihydroxyamine-based compound, a cross-linked hyper-branched polymer, an electrode and electrolyte membrane for a fuel cell including the hyper-branched polymer or the cross-linked hyper-branched polymer, and a fuel cell including the electrode and the electrolyte membrane.