Abstract: A measuring apparatus with storage that measures and analyzes both stray currents from subway rails or power lines and the pipe-to-soil voltage of a buried metallic structure simultaneously is disclosed. The data measuring apparatus with storage for measuring stray currents from subway rails or power lines and the pipe-to-soil voltage of a buried metallic structure in accordance with the present invention comprises measuring means, which is a portable module that allows easy installation at one or multiple measurement points of the buried metallic structure, for measuring stray currents from the subway rails or power lines and the pipe-to-soil voltage of a buried metallic structure simultaneously and for storing and transmitting the measurement data and analytic computing means for receiving the measurement data transmitted from the measuring means and for databasing and graphically displaying the received measurement data for time-synchronous data analysis.

Abstract: Disclosed herein is a technique for manufacturing a superconducting tape grown epitaxially by a replication process. According to the technique, a long superconducting tape can be manufactured using a loop-shaped base. Further disclosed is a method for manufacturing a metal oxide device which comprises the steps of forming a solvent-soluble separation layer on a base having a single crystal or textured surface, forming a superconducting layer on the separation layer, forming a support layer on the superconducting layer, and removing the separation layer by dissolution in a solvent. According to the method, it is possible to manufacture a superconducting tape consisting of the superconducting layer and the support layer separated from the bath, and having the same crystallinity as that of the base (replication).

Abstract: Disclosed herein is a horizontal and vertical transportation system using permanent magnet excited transverse flux linear motors which is capable of linearly transporting an object in the horizontal direction and in the vertical direction using permanent magnet excited transverse flux linear motors, thereby obtaining a simple structure of the system and preventing any occurrence of dust generated by abrasion between the parts of the system. The system comprises a horizontal transportation unit and a vertical transportation unit. The horizontal transportation unit is adapted for transporting the object in the horizontal direction by means of a thrust from a permanent magnet excited transverse flux horizontal linear motor. The vertical transportation unit is installed on the horizontal transportation unit. The vertical transportation unit is adapted for transporting the object in the vertical direction by means of thrusts from permanent magnet excited transverse flux vertical linear motors.

Abstract: Background plasma electrons in a laser wake field are trapped and accelerated using a sharp downward density transition. A short and intense laser pulse travels through low density plasma with a sharp downward density transition. The density transition scale length is much smaller than the wavelength of a laser wake wave. As the laser wake wave passes the density transition, its wavelength increases suddenly so that some background plasma electrons are self-injected into the acceleration phase of the wake field and trapped and accelerated by the strong laser wake field.

Abstract: Disclosed herein is a superconducting rotor with a cooling system located inside. The rotor comprises a superconducting field coil for generating a strong magnetic field, a field coil supporting member for supporting the superconducting field coil, and a pulse tube refrigerator.

Abstract: The present invention relates to Fe—Cr—Ar type alloys with additions to improve workability thereof, strength, and heat resistance. The present Fe—Cr—Al alloy for electric resistance wires comprises a basic alloy added with only Be of below 0.01 wt % or with both Be and misch metal composed of rare earth elements wherein the basic alloy consists of a balance element of Fe, a Cr element of 12˜30 wt %, an Al element of 3˜14 wt %, a Zr element of 0.01˜1.5 wt %, and a Ti element of 0.001˜0.1 wt %. The present Fe—Cr—Al type alloys remarkably improve physical properties of Fe—Cr—Al ferritic alloys, especially, workability and mechanical properties, and heating characteristic.

Abstract: The present invention provides a system for integrating a linear motion guide and a linear induction motor that can commonly employ a stationary member between the linear induction motor and the linear motion guide so that a complicated connection structure between a conventional linear motion guide and a conventional linear induction motor can be removed. In the system, a stationary unit interconnects a stationary member of the linear motion guide and a stationary member of the linear induction motor, and a movable unit interconnects a movable member of the linear motion guide and a movable member of the linear induction motor. As an existing linear transport device requiring both the linear induction motor and the linear motion guide can be simplified, an installation space of the device can be reduced, device manufacturing and maintenance costs can be reduced, and clean straight-line transport can be implemented.

Abstract: A system and method for calculating a real time voltage stability risk index in a power system are disclosed. The disclosed system comprises a real time phasor measurement device for calculating a voltage stability risk index using RMS voltage and an upper voltage stability monitoring system for collecting and sequencing the voltage stability risk index transferred from the real time phasor measurement device. The disclosed method comprises calculating RMS voltage by using bus voltage measured; calculating an N moving average voltage for the RMS voltages; calculating a % diversity between the bus voltage measured and the N moving average voltage; calculating a voltage stability risk index by dividing the area constructed by the % diversity by the number of sections; transferring the voltage stability risk index from a real time phasor measurement device to an upper voltage stability monitoring system; acquiring and sequencing the voltage stability risk indexes transferred.

Abstract: Disclosed is an improved fluorescent endoscope system having reduced factors that cause errors during diagnosis based on quantitative evaluation of fluorescent intensity for improved accuracy of fluorescent endoscopic diagnosis.

Abstract: The present invention provides a system for integrating a linear motion guide and a reluctance-type linear motor that can commonly employ a stationary member between the reluctance-type linear motor and the linear motion guide while removing a complicated connection structure between a conventional linear motion guide and a conventional linear motor for obtaining linear motion. In the system, a stationary unit interconnects a stationary member of the linear motion guide and a stationary member of the reluctance-type linear motor, and a movable unit interconnects a movable member of the linear motion guide and at least one movable member of the reluctance-type linear motor. Therefore, a structure of a linear transport device requiring both the linear motor and the linear motion guide is simplified, and cost is reduced.

Abstract: Disclosed is a brushless generator with permanent magnets, which provides high-speed operation, simple maintenance, lightweight, and stable power. The brushless generator with permanent magnets including a main generator with a stator and a rotor; and an auxiliary generator having a stator made of a hollow stator core and a coil wound around the stator core, and a rotor made of a rotor core rotating within the stator core and a coil wound around the rotor core, where wedges and grooves are formed alternatively on the inner portion of the stator core of the auxiliary generator, and permanent magnets are embedded in the body of the grooves and the coil is wound around the body of the grooves. Accordingly, without the use of a brush, a rated load voltage is generated from the permanent magnets of the auxiliary generator, and voltage variations due to load variations are controlled by the windings of the auxiliary generator.

Abstract: A transverse flux linear motor with permanent magnet excitation having a stator including stator cores and windings respectively wound around the stator cores and supplied with current, and a mover arranged at a central portion of the stator, the mover including mover cores and permanent magnets. Each of the permanent magnets is arranged between adjacent ones of the mover cores. Each stator core has a pair of column portions spaced apart from each other by a desired distance. The windings are arranged in pairs such that each of the winding pairs has two windings wound around respective column portions of an associated one of the stator cores.

Abstract: Disclosed is an integrated system of a non-contact power feed device and a permanent magnet-excited transverse flux linear motor, in which a conventional structure of the permanent magnet-excited transverse flux linear motor system is still used and a driving force and non-contact type power are supplied to a shifter of the permanent magnet-excited transverse flux linear motor, thereby eliminating defects of the electrical power supply system occurring due to the contact friction.

Abstract: The present invention is a device using a non-linear capacitor and voltage amplification effect, which can generate a pulse having a short pulse width at high voltage. The device comprises a rectification circuit for rectifying the AC input power supply, a semiconductor switch connected to one output terminal of said rectification circuit, a primary coil connected between an output of said semiconductor switch and the other output terminal of said rectification circuit, a diode in which the cathode thereof is connected to the output of said semiconductor switch, a capacitor connected between an anode of said diode and the other output terminal of said rectification circuit, a secondary coil in which one terminal thereof is connected to the anode of said diode, a non-linear capacitor connected between the other terminal of said secondary coil and the other output terminal of said rectification circuit, and a load connected in parallel across two terminals of said non-linear capacitor.

Abstract: A rotary arc gap (RAG) switch capable of handling large amounts of current flow is disclosed. The circular electrodes of the switch incorporate the use of a high-resistance material placed in a gap in the electrodes. The absence of an air gap in the electrodes reduces wear and broadening at the edges of the gap and thus improves the life span of the switch. Further disclosed is the use of a dual trigger mechanism that also improves the life span of the electrodes and the triggers.

Abstract: The present invention relates to an integrated system in which a bilateral permanent magnet excited synchronous motor part and a non-contact power feeding part are combined in order to generate a linear driving force and to feed an electric power without any contact.

Abstract: This present invention relates to a fluorescence endoscope apparatus, developed for diagnosing various illnesses within a body, especially for diagnosing a tumor inflamed region; and an application method of the same. The purpose of this invention is to enhance the accuracy of the examination. The fluorescence light endoscope apparatus in accordance with the present invention is comprised of an endoscope probe; a multiple light source that provides illumination light or excitation light of short wavelength onto a diagnostic region; a color CCD camera and a high sensitive monochromatic CCD camera placed on the back of an endoscope ocular lens; a reference test sample; a computer; and a monitor.

Abstract: A high voltage pulse generation device for magnetron is disclosed. The device is divided into a DC voltage generation part, which continuously applies a variable DC voltage at a constant value to the load, and a pulse voltage generation part, which generates a momentary high voltage pulse and supplies the same to the load. The voltage applied to the load is a superposition of the output voltages from the two devices. Further, a pulse transformer demagnetization power supply is provided. A high voltage pulse waveform is obtained by momentary resonance and the pulse transformer using a low voltage at the time of pulse generation, thereby reducing the insulation space required and the size and the weight of the device. It is also possible to adjust the peak value and pulse cycle of the DC voltage applied to the load in addition to the pulse voltage.

Abstract: The present invention relates to Fe—Cr—Ar type alloys with additions to improve workability thereof, strength, and heat resistance. The present Fe—Cr—Al alloy for electric resistance wires comprises a basic alloy added with only Be of below 0.01 wt % or with both Be and misch metal composed of rare earth elements wherein the basic alloy consists of a balance element of Fe, a Cr element of 12˜30 wt %, an Al element of 3˜14 wt %, a Zr element of 0.01˜1.5 wt %, and a Ti element of 0.001˜0.1 wt %. The present Fe—Cr—Al type alloys remarkably improve physical properties of Fe—Cr—Al ferritic alloys, especially, workability and mechanical properties, and heating characteristic.

Abstract: The present invention relates to an integrated system in which a bilateral permanent magnet excited synchronous motor part and a non-contact power feeding part are combined in order to generate a linear driving force and to feed an electric power without any contact.