Abstract:
Provided are a fault detector and a fault detection method for an attitude control system (ACS) of a spacecraft. The fault detector includes a first interacting multiple model (IMM) fault detection block for generating a normal model filter of the plurality of actuators and a plurality of upper level filters including fault model filters corresponding to the respective actuators, and detecting faults of the plurality of actuators using an IMM estimation technique from the plurality of upper level filters, and a second IMM fault detection block for generating a plurality of lower level filters each including a fault type model filter of the fault-detected actuator in the first IMM fault detection block, and detecting a fault type of the failed actuator using the IMM estimation technique.
Abstract:
The present invention provides a metal paste for forming an electrically conductive layer comprising a metal solution in a reactive organic solvent having a heteroatom P, S, O, or N; metal powder; a binder; and a residual amount of a polar or non-polar viscosity modulating solvent.The metal paste composition according to the present invention has advantages in that it produces structures of layers denser than those conventional metal pastes do; shows characteristics of a much lower electric resistance even with a relatively small thickness or a small line width, as compared with the conductive pattern formed from a conventional paste; and allows heat treatment at a very low temperature even without the use of expensive nano-sized metal particles. The metal paste also provides a silver paste, which can be economically prepared and has high adaptability to various surfaces.
Abstract:
An image device, a receiving method of contents, a server, and a providing method of contents are provided. The image device includes: a communication unit which communicates with a server that provides content received from a content provider; a display unit; at least one application execution unit which executes the content; and an application controller which controls the communication unit to receive the content corresponding to a log-in user from the server and displays, on the display unit, reception information indicating reception of the content based on a user ID for the log-in user to be logged in to the image device and a token which matches the user ID to a content ID for the log-in user to be connected to the content provider.
Abstract:
Provided is an organic light emitting diode (OLED) panel for lighting, including an organic layer emitting light by reaction in response to power supplied by a positive electrode and a negative electrode, a protection cap protecting the organic layer from external moisture and oxygen, a cover film attached to upper surfaces of the positive electrode and negative electrode, and serving as a ground for the positive electrode and the negative electrode, and a conductive metal layer grounding the positive electrode and the negative electrode to the cover film.
Abstract:
A flash assembly includes a circuit board unit, a flash unit, and a housing. The circuit board unit includes a circuit board and two connecting members electrically disposed on the circuit board. Each connecting member defines a gap. The flash unit includes a reflector and a flash tube received in the reflector and electrically connected to the reflector. The flash tube includes two power electrodes received in the corresponding gaps and electrically connected to the circuit board by the connecting members. The flash unit and the circuit board unit are received in the housing.
Abstract:
Provided are an organic-light-emitting-diode (OLED) flat-panel light-source apparatus and a method of manufacturing the same. The device includes an anode and a cathode, to which externally applied power is supplied, disposed on a substrate, an organic emission layer (EML) interposed between the anode and the cathode and configured to emit light due to power supplied through the anode and the cathode, and a subsidiary electrode layer including a plurality of subsidiary electrodes bonded to the anode or the cathode and configured to supply power to the anode or the cathode or electrically insulated from the anode or the cathode and configured to supply power to other emission regions.
Abstract:
The present invention relates to an oxide catalyst and a phosphoric oxide catalyst for hydrocarbon steam cracking, method for preparing the same and a method for preparing olefin by using the same. More precisely, the present invention relates to an oxide catalyst for hydrocarbon steam cracking represented by formula 1 and a phosphoric oxide catalyst for hydrocarbon steam cracking represented by formula 3 which would be used for the production of olefin such as ethylene and propylene by hydrocarbon steam cracking, and a method for preparing the same. The present invention provides an oxide catalyst and a phosphoric oxide catalyst for hydrocarbon steam cracking that has excellent thermo-stability at high temperature and improved olefin yield. CrZrjAkOx [Formula 1] CrZrjAkPlOx [Formula 3] Wherein, j, k, l and x are as indicated in the description.
Abstract:
An absorbent for separating acidic gases is disclosed. The absorbent or an absorbent composition for separating acidic gases has more than 3 kinds of compounds along with Chemical Formula 1 and 2, and has ability of rapid carbon dioxide elimination, excellent absorption ability, and less energy consumption for regenerating an absorbent due to easy desorption of carbon dioxide.
Abstract:
A flash assembly includes a circuit board unit, a flash unit, and a housing. The circuit board unit includes a circuit board and two connecting members electrically disposed on the circuit board. Each connecting member defines a gap. The flash unit includes a reflector and a flash tube received in the reflector and electrically connected to the reflector. The flash tube includes two power electrodes received in the corresponding gaps and electrically connected to the circuit board by the connecting members. The flash unit and the circuit board unit are received in the housing.
Abstract:
A signal generating circuit for detecting ground status includes a power supply input unit (A), a step down rectified power supply or DC power supply unit (C) in series. The DC power supply required by a signal detection and process unit (D) is obtained by the power supply input unit (A) passing through the step down DC power supply unit (C), and then a ground status signal is obtained and outputted via a resistor unit (B) and the signal detection and process unit (D) connected in turn.