Abstract: The present invention relates to a simple and small cylinder pump, which can stably supply a medical fluid regardless of the installed height of a liquid container or a blood bag. The cylinder pump includes an upper casing, and a lower casing coupled to the upper casing. An upper rotation member is rotatably inserted in the upper casing. A lower rotation member slidingly contacting the upper rotation member is rotatably inserted in the lower casing. An inner wall of the upper casing, a lower outer surface of the upper rotation member, an inner wall of the lower casing, and an upper outer surface of the rotation member constitute a cylinder having a single-tube shape. Plungers are installed on the upper rotation member and on the lower rotation member, respectively, and rotate in the cylinder, the ends of which are closed.

Abstract: A sensor node management system in a Radio Frequency Identification/Ubiquitous Sensing Network (RFID/USN) infrastructure is provided, in which a sensor node has a local ID in a sensor network, a gateway receives, from the sensor node, node information including the local ID and an ID of a home gateway to which the sensor node initially belongs and registers the node information about the sensor node to a location information server, and the location information server registers and manages node information about sensor nodes within an area of the gateway. The location information server generates a global ID using the local ID and the ID of the home gateway, the global ID being recognized as an address of the sensor node by an Internet Protocol (IP) network.

Abstract: Provided are an apparatus and a method for diagnosing permanent magnet demagnetization of a permanent magnet synchronous motor. The apparatus includes a magnetic field generating unit, a stator current measuring unit, and a demagnetization diagnosing unit. The magnetic field generating unit generates magnetic fields of which directions are respectively parallel to a predetermined direction among a plurality of directions passing through a rotation axis of a rotor, on a plane vertical to the rotation axis of the rotor which is in a standstill. The stator current measuring unit measures currents which flow in a stator winding in correspondence with the respective generated magnetic fields.

Abstract: An injection volume regulating device for liquid medicine, including a fixing member, a regulating member, a passage recess-sealing member, an outflow hole-sealing member, and a fastening member. The fixing member includes an inlet connected to a medicine supply hose, an inflow hole to deliver the medicine to the regulating device, an outflow hole to be supplied with the medicine from the regulating member, an outlet to discharge the medicine to the hose to allow the medicine to be supplied to a needle, and an insertion hole to be equipped with the fastening member. The regulating member includes a passage recess that is connected to the inflow hole, a liquid medicine-delivering groove connected to the outflow hole, and an insertion hole to be equipped with the fastening member. The passage recess-sealing member communicates the inflow hole with the passage recess. The fastening member fastens the fixing member to the regulating member.

Abstract: A portable test device (1) can be configured as a rotor conductivity anomaly tester, a magnetic core anomaly tester, or a rotational eccentricity fault tester for a multiphasic motive force electrical machine (6) by providing an immotive multiphasic motive force electrical machine test signal from a plurality of multiphasic motive force electrical machine signal generators (4) through a detachable electrical power connectivity (2) and by having a multiphasic motive force electrical machine fault analyzer (16) that can sense responses and discern the existence of a fault. Control of the test signal can be accomplished by an immotive multiphasic test signal controller (3) that varies frequency and achieves incremental movement or to achieve stator magnetization plane angle changes or movement that tests angular relationships.

Abstract: Disclosed are a washing machine, in which substances stuck to the surface of a heater are washed off to minimize the generation of scale on the heater, and a method for controlling the same. The washing machine includes a tub; a heater installed in the tub for heating washing water; and a washing device for washing the heater. The washing device includes a spray nozzle for spraying the washing water to the heater, and a washing pump for supplying the washing water in the tub to the spray nozzle. The washing of the heater is performed in the first rinsing operation.

Abstract: A data aggregation method and data aggregation apparatus are provided. More particularly the data aggregation method includes: generating a plurality of data aggregation trees according to connection relationships between clusters that constitute a sensor network using a geographical code (GGC), selecting a single activation zone for each of the clusters which configures each of the plurality of data aggregation trees, selecting a maximum energy tree having a maximum total residual energy from the plurality of data aggregation trees, based on the single activation zone, and generating a tree list including activation zone information which corresponds to the maximum energy tree, and information about the maximum energy tree.

Abstract: A washing machine door, in which assembly efficiency of the door is improved, and an assembling structure and assembling method thereof are disclosed. The door includes a front panel forming the front surface of the door, a rear panel forming the rear surface of the door, a door handle mounted on the rear panel, fixing parts provided on the rear panel, a hook member operated in connection with the operation of the door handle, and an elastic member provided with one side fixed to the fixing parts and the other side fixed to the door handle to provide elastic force to the hook member and the door handle.

Abstract: An easily implemented method of diagnosing both supply path, upstream, and load path, downstream, anomalies such as impedance events in machine or motor circuitry is accomplished by analyzing the across-the-line startup current and voltage time waveforms. No line of sight limitations exist and high accuracy exists. The techniques can be automated estimating poor contact resistance based on the voltage and current variation under a load change condition perhaps such as startup and/or shutdown of the load. Both, upstream and downstream problems from the point of voltage measurement can be monitored analyzing a load change condition. Additionally, downstream problems can be identified by using negative sequence current under steady state operation of the load.

Abstract: An apparatus and method of determining a number of data transmissions in a sensor network are provided. More particularly, an apparatus for determining a number of data transmissions preferably includes an interest zone detector for detecting an interest zone based on a user query, a zone determination unit for determining whether the interest zone is overlapped with a sensing zone, a zone calculator for calculating an overlap amount when the interest zone is overlapped with the sensing zone, and a transmission number determination unit for determining a number of data transmissions according to the overlap amount.

Abstract: An aspect of the invention is directed to a variable sensor head for use in multiple electric machines with varying slot openings comprising a ferromagnetic core; a first adjustable portion and a second adjustable portion positioned in communication with the ferromagnetic core wherein the first adjustable portion and the second adjustable portion are adjusted to fit between a plurality of slot openings of varying widths between a pair of lamination teeth of an electric machine. According to another embodiment, the first and second adjustable portions are sliding portions where the sliding portions may be spring biased to provide a close fit between the pair of lamination teeth. According to another embodiment, the first and second adjustable portions are adjustable screws.

Abstract: Disclosed are a washing machine, in which substances stuck to the surface of a heater are washed off to minimize the generation of scale on the heater, and a method for controlling the same. The washing machine includes a tub; a heater installed in the tub for heating washing water; and a washing device for washing the heater. The washing device includes a spray nozzle for spraying the washing water to the heater, and a washing pump for supplying the washing water in the tub to the spray nozzle. The washing of the heater is performed in the first rinsing operation.

Abstract: A data aggregation method and data aggregation apparatus are provided. More particularly the data aggregation method includes: generating a plurality of data aggregation trees according to connection relationships between clusters that constitute a sensor network using a geographical code (GGC), selecting a single activation zone for each of the clusters which configures each of the plurality of data aggregation trees, selecting a maximum energy tree having a maximum total residual energy from the plurality of data aggregation trees, based on the single activation zone, and generating a tree list including activation zone information which corresponds to the maximum energy tree, and information about the maximum energy tree.

Abstract: An apparatus and method of determining a number of data transmissions in a sensor network are provided. More particularly, an apparatus for determining a number of data transmissions preferably includes an interest zone detector for detecting an interest zone based on a user query, a zone determination unit for determining whether the interest zone is overlapped with a sensing zone, a zone calculator for calculating an overlap amount when the interest zone is overlapped with the sensing zone, and a transmission number determination unit for determining a number of data transmissions according to the overlap amount.

Abstract: Disclosed herein is an injection volume regulating device for a liquid medicine, designed to allow a flow rate of the liquid medicine to be precisely adjusted through change in a length and a cross-sectional area of a passage through which the liquid medicine flows, to prevent a packing for sealing from infiltrating the passage and from being pushed by pressure buildup thereon, and to be operated with one hand. The device is equipped to a hose hermetically connected to a lower end of a pack containing the liquid medicine and to a needle. The device comprises a disk-shaped fixing member, a disk-shaped regulating member, a passage recess-sealing member, an outflow hole-sealing member, and a fastening member.

Abstract: A probe support carriage for use during probing an electrical device includes a body, means for supporting and positioning the body, a plurality of flux sensors and a position sensor. The body has a first end and a second end. The plurality of flux sensors are operatively connected to the body. Each flux sensor includes a probe having a core and a coil. The core includes a material having high initial permeability and high resistivity characteristics. The probe is adapted to being supported so that a sensing portion of the core is maintained in a contact-free spaced relationship between a predetermined surface of the electrical device and the sensing portion of the core. The position sensor is adapted to determine position along a longitudinal axis of the electrical device.

Abstract: Insulation condition monitoring systems and methods for a rotating DC electric machine, the method comprising: measuring a first set of values for an instantaneous differential current and an instantaneous voltage during operation of the rotating DC electric machine; calculating a value for a phasor current and phasor voltage based upon the first set of values of the instantaneous differential current and the instantaneous voltage, respectively; calculating an angular relationship between the phasor current and the phasor voltage; and determining insulation condition based on the angular relationship.

Abstract: The object of this invention is to provide a device for regulating the flow rate of an intravenous medical solution during an injection using an intravenous drip unit. The device has a housing (10) mounted to a hose (300) to allow the flow of the solution from a solution container (200) into the vein, and a control member (20) rotatably assembled with the housing to regulate the flow rate of the solution. The housing has first and second seats (11, 12) communicating with inlet and outlet ports, and the control member has first and second bosses (21, 22) seated in the first and second seats. An arc-shaped solution path (23), a radial channel (24) and an annular groove (25) are formed on the control member to regulate the flow rate of the solution in accordance with an adjusted angle of the control member relative to the fixed housing.

Abstract: An aspect of the invention is directed to a variable sensor head for use in multiple electric machines with varying slot openings comprising a ferromagnetic core; a first adjustable portion and a second adjustable portion positioned in communication with the ferromagnetic core wherein the first adjustable portion and the second adjustable portion are adjusted to fit between a plurality of slot openings of varying widths between a pair of lamination teeth of an electric machine. According to another embodiment, the first and second adjustable portions are sliding portions where the sliding portions may be spring biased to provide a close fit between the pair of lamination teeth. According to another embodiment, the first and second adjustable portions are adjustable screws.

Abstract: Insulation condition monitoring systems and methods for a rotating DC electric machine, the method comprising: measuring a first set of values for an instantaneous differential current and an instantaneous voltage during operation of the rotating DC electric machine; calculating a value for a phasor current and phasor voltage based upon the first set of values of the instantaneous differential current and the instantaneous voltage, respectively; calculating an angular relationship between the phasor current and the phasor voltage; and determining insulation condition based on the angular relationship.