摘要:
A non-packaged semiconductor chip testing apparatus includes a lead frame having chips with a plurality of leads which are electrically isolated from the other leads, and are supported by adhesive tape and bonded to the chip via wires. The lead frame is placed on a holding plate having windows, so that the leads of the lead frame are exposed through the windows and contact test probes located under the plate. The test probes, such as pogo pins or bending leads, extend upwardly from a substrate. A base receives the substrate, with cables extending from a lower surface of the substrate passing through openings in the base, where they then connect a test board. After being pressed down by a pressing cover, the lead frame on the holding plate moves down so that the leads may contact the test probes. The pressing cover is movable up and down. Guide pins on the base are simultaneously inserted into through holes of the holding plate and lead frame, and extend into recesses in the pressing cover to ensure alignment.
摘要:
A robotic gait training system includes a femoral support unit supporting a thigh of a patient, a hip joint support unit supporting buttocks of the patient, a lower leg support unit supporting a lower leg, an ankle support unit supporting an ankle, a support fixing toe tip positioned at an ankle height of the patient in use, a toe tip pad supporting and wrapping a forefoot of the patient, a tilt sensor, a first linear actuator operation unit rotating the femoral support unit based on the hip joint unit, a second linear actuator operation unit rotating the lower leg supporting unit based on the femoral support unit, a control unit generating a functional electric stimulation (FES) control signal, and an FES unit stimulating the plantarflexor or dorsiflexor of ankle joint based on the FES control signal received from the control unit.
摘要:
There are provided a conductive paste composition for an internal electrode, a multilayer ceramic electronic component including the same, and a method of manufacturing the same, the conductive paste composition including: a metal powder; and an additive including at least one selected from glutamic acid, amino acids, thiols, and hydrocarbons.
摘要:
The present invention relates to the novel benzofuran derivatives, the preparation thereof and the composition comprising the same. The benzofuran derivatives of the present invention showed potent inhibiting activity of beta-amyloid aggregation and cell cytotoxicity resulting in stimulating the proliferation of neuronal cells as well as recovering activity of memory learning injury caused by neuronal cell injury using transformed animal model with beta-amyloid precursor gene, therefore the compounds can be useful in treating or preventing cognitive function disorder.
摘要:
A system including an enclosure of a washing machine, a drum within the enclosure, a mixing unit, within the enclosure but separate from the drum and in fluid communication with the drum, a water supply unit coupled to the mixing unit, a reservoir having a conduit fluidly coupled to the mixing unit, and a container connecting assembly configured to fix a spout of a container to the reservoir. An apparatus including a reservoir, external to a washing machine, to receive a liquid wash aid, a container connecting assembly coupled to the reservoir and configured to fix a spout of a container containing liquid wash aid to the reservoir, a flexible conduit to pass liquid wash aid from the reservoir to the washing machine, and a wash aid control unit connected to the flexible conduit and adapted to meter a flow of liquid wash aid from the reservoir to the washing machine.
摘要:
There is provided an apparatus and method for controlling a switch of a flyback converter for a solar generating system. The apparatus for controlling a switch of a flyback converter for a solar generating system includes: an MPPT controller generating a current command value for a maximum power point tracker of a solar cell module, based on input voltage, input current, and output voltage of the flyback converter; a current controller generating a current control signal for tracking the current command value; an output current command value generator generating the phase and magnitude command value of the output current, based on the phase of the output voltage and the current control signal; and a switch controller controlling the main switch of the flyback converter, based on the phase and magnitude command value of the output current, thereby simplifying a circuit while solving disadvantages of a discontinuous conduction mode and a boundary conduction mode.
摘要:
There are provided a method and an apparatus for generating a current command value for tracking the maximum power point of a solar energy generating system. The apparatus includes: a voltage detector detecting a voltage input into the flyback power converter; a first calculator calculating an output power from the detected input voltage; a second calculator calculating a power variation based on the calculated output power and a voltage variation of the input voltage; and a current command value generator generating a current command value for tracking the maximum power point of the solar cell module from the calculated voltage variation and the calculated power variation. Accordingly, a current command value after calculating an output power may be generated with only a voltage detector, without a current detector, thereby reducing the costs of a solar energy generating system by decreasing the costs for a high-priced current detector, and simplifying circuit.
摘要:
The present invention relates to the novel benzofuran derivatives, the preparation thereof and the composition comprising the same. The benzofuran derivatives of the present invention showed potent inhibiting activity of beta-amyloid aggregation and cell cytotoxicity resulting in stimulating the proliferation of neuronal cells as well as recovering activity of memory learning injury caused by neuronal cell injury using transformed animal model with beta-amyloid precursor gene, therefore the compounds can be useful in treating or preventing cognitive function disorder.
摘要:
There are provided a conductive paste composition for an internal electrode and a multilayer ceramic electronic component including the same. The conductive paste composition includes: 100 moles of a metal powder; 0.5 to 4.0 moles of a ceramic powder; and 0.03 to 0.1 mole of a silica (SiO2) powder. The conductive paste composition can raise the sintering shrinkage temperature of the internal electrodes and improve the connectivity of the internal electrodes, and can improve the degree of densification of the dielectric layer, thereby improving withstand voltage characteristics, reliability, and dielectric characteristics.
摘要:
The present invention provides a method and system for processing visual images of a digestive system. The method comprises: detecting visual images of a digestive system; storing the detected visual images; analyzing the stored visual images to identify corresponding event frames; and displaying the identified event frames quantitatively with respect to at least one reference. With the method and system, visual images of a digestive system can be processed more accurately, efficiently and conveniently for diagnostic purposes.