Abstract: A foldable house assembly that minimizes transportation size and assembly time is provided. The assembly includes a rectangular base, a front wall, a rear wall, two side walls pivotally attached to the base, and two roof halves that are pivotally attached to the two side walls. Each of the walls and roofs has a panel and reinforcements fixed to the panel. Hinges are used between reinforcements for pivoting, and bolts and nuts are used for assembly of the walls and roofs. The panel extends over the reinforcements to provide sealing effects. In a second embodiment, the assembly is divided into a center unit, a left unit and a right unit. The wall between the center unit and the left unit, and the wall between the center unit and the right unit are omitted. The assembly may be extended by inserting center units as needed.

Abstract: Provided is an in-situ analysis method for an atomic layer deposition (ALD) process. The provided method includes transferring a substrate to a reaction chamber in a vacuum container, depositing an atomic layer on the upper surface of the substrate, and analyzing the state of the atomic layer to determine the quality of the atomic layer in real time. Using the method decreases failure and the cost for additional analysis.

Abstract: A reaction apparatus for atomic layer deposition includes a vacuum chamber having a gas inlet, a gas outlet, and a gas flow path for connecting the gas inlet and the gas outlet; a reactor located in the vacuum chamber, including a reaction chamber where a first gas, which is input through the gas flow path, reacts with a specimen in the reaction chamber, the reactor further including a gas distributor, which is located in the reaction chamber to evenly supply the gas; a specimen location controller for moving the specimen located in the vacuum chamber to the reaction chamber; and an analyzer, which is connected to the reaction chamber, for analyzing a second gas generated in the reaction chamber. The apparatus is able to deposit uniform atomic layers on a specimen by maintaining the pressure and flow of reactant gas and can deposit and analyze an atomic layer simultaneously.

Abstract: An electron spectroscopic analyzer using X-rays is provided. The electron spectroscopic analyzer includes an X-ray generator for generating X-rays, an optical system for detecting charged particles emitted from an object irradiated with the X-rays to analyze the object, a vacuum system whose inside is maintained at a low pressure near to vacuum pressure, the vacuum system being provided between the X-ray generator and the optical system, and a blocking unit provided between the X-ray generator and the optical system for preventing elements other than the X-rays emitted from the X-ray generator from flowing into the optical system.

Abstract: A device for limiting the use of electronic appliances is disclosed. A timer is set inside an electronic appliance such as a television or personal computer. A three-stage conversion switch capable of selecting one of the continuous use of the electronic appliance, the use of the appliance for a period of time set by the timer, and suspension of the use of the appliance. In case of the selection of timer mode, the electronic appliance can be used only for a predetermined period of time set by the timer. During a period of time other than the set time, the electronic appliance may be continuously used or its operation is stopped according to a selected mode. A warning means warns that the end of the time set by the timer is approaching before the completion of the set time.

Abstract: An electron spectroscopic analyzer using X-rays is provided. The electron spectroscopic analyzer includes an X-ray generator for generating X-rays, an optical system for detecting charged particles emitted from an object irradiated with the X-rays to analyze the object, a vacuum system whose inside is maintained at a low pressure near to vacuum pressure, the vacuum system being provided between the X-ray generator and the optical system, and a blocking unit provided between the X-ray generator and the optical system for preventing elements other than the X-rays emitted from the X-ray generator from flowing into the optical system.

Abstract: A catalyst for purifying exhaust gases from diesel engines with an improved purification efficiency for both nitrogen oxide and particulates in exhaust emissions is provided. The catalyst includes: (i) a first catalytic layer containing a carrier portion including iron (Fe)-doped modified zirconium dioxide, and a catalyst portion including a material selected from the group consisting of copper (Cu), copper oxide, and mixtures thereof, and (ii) a second catalytic layer containing a carrier portion including Cu-doped modified zirconium dioxide, a main catalyst portion including platinum (Pt) and tin (Sn), and a co-catalyst portion including copper oxide. The catalyst portion of the first catalytic layer may contain palladium (Pd) instead of Cu.

Abstract: A ceramic heater for a gas sensor has a heater substrate, a laminating substrate made of the same material as the heater substrate, and an electrode made of platinum and at least one lanthanide oxide disposed between the heater substrate and the laminating substrates. The ceramic heater exhibits improved durability without migration patterns, is free of cracks on the substrate, is free of short circuits in the heat electrode and is low in production cost.

Abstract: A wide-range air fuel ratio oxygen sensor including a pump cell, a sensor cell, and a porous diffusion layer interposed between the pump cell and the sensor cell and a method for fabricating the oxygen sensor. The oxygen sensor generates output pumping current with a very small dispersion range of about .+-.2% by virtue of the activation effect of the catalyst such as Pt mixed into Al.sub.2 O.sub.3 of the porous diffusion layer.