Keizan, South Korea

Yeungnam University

www.yu.ac.kr/
Keizan, South Korea

Yeungnam University is a private research university, located in Gyeongsan, North Gyeongsang, South Korea. The university's predecessors, Taegu College and Chunggu College, were founded in Daegu in 1947 and 1950 respectively. In 1967, the two colleges merged by President Park Chung-hee to form the degree-granting Yeungnam University. In 1972, the university's new main campus opened in Gyeongsan east of Daegu. The university includes colleges of Law and Medicine and a teaching hospital. Wikipedia.


Time filter

Source Type

Patent
LG Corp and Yeungnam University | Date: 2016-08-10

A motor driving apparatus included in a home appliance may include an inverter to convert a direct current (DC) power into an alternating current (AC) power through a switching operation and to output the converted AC power to a motor, an output current detector to detect an output current flowing through the motor, a controller to control the inverter, wherein, during a first interval after the motor stops, the controller controls a phase current of a predetermined frequency to flow through the motor to estimate a position of a rotor of the motor, and estimates the position of the rotor of the motor based on the detected output current while the phase current of the predetermined frequency flows through the motor. Thereby, the sensorless motor driving apparatus can easily estimate the position of the motor rotor.


Provided is a three-dimensional composite of nickel cobalt oxide/graphene on nickel foam as high-performance electrode materials for supercapacitors and a method for preparing the same, and the electrode comprising a three-dimensional nickel cobalt oxide/graphene on nickel foam exhibited an ultrahigh specific capacitance of 2,260 F/g at a current density of 1 A/g.


Patent
Yeungnam University | Date: 2016-01-06

Disclosed are a system and a method for detecting feature points of a face. The system for detecting feature points of a face include: a training unit configured to divide each of a plurality of facial images into segments of a predetermined size, and generate an eigen-codebook representing a correlation between a feature vector of each of the divided segments and location of a predetermined feature point in the facial image; and a detection unit configured to detect a facial area from a target image, divide the facial area into segments of a predetermined size, detect a feature vector of each of the divided segments of the facial area, and detect a location of a feature point in the facial area by using the detected feature vector and the eigen-codebook.


Patent
LS Industrial Systems and Yeungnam University | Date: 2016-09-08

Disclosed embodiments relate to apparatuses, methods, and systems for restarting an induction machine. In some embodiments, a method includes estimating a position of a rotor and a speed thereof in a position and speed estimation Operation, resetting a speed reference to correspond to the speed of the rotor in a speed reference resetting Operation, generating a control voltage corresponding to the speed reference to regulate a voltage magnitude using the control voltage in a voltage magnitude regulation Operation, and re-accelerating the induction machine up to a target speed after the regulation of the voltage magnitude in a re-acceleration Operation.


Patent
LG Corp and Yeungnam University | Date: 2017-02-15

A home appliance (100) is disclosed, including a first circuit unit (610) including a converter (605) configured to convert an Alternating Current (AC) power into a Direct Current (DC) power, a first coil (619), a first modulator/demodulator (612) configured to wirelessly transmit the DC power generated by the converter (605) using the first coil (619), and a first controller (210) configured to control the first modulator/demodulator (612), and a second circuit unit (620) including a second coil (629) configured to receive a wireless power transmitted by the first circuit unit (610), a second modulator/demodulator (622) configured to convert the wireless power received from the second coil (629), a rectifier (623) configured to rectify an AC power generated by the second modulator/demodulator (622), and a second controller (625) configured to control operation of the second modulator/demodulator (622), wherein the first modulator/demodulator (612) and the second modulator/demodulator (622) perform bidirectional time-division data communication.


Patent
LS Industrial Systems and Yeungnam University | Date: 2017-03-15

A method for restarting an induction machine of the present disclosure includes estimating a position of a rotor and a speed thereof in a position and speed estimation Operation, resetting a speed reference to correspond to the speed of the rotor in a speed reference resetting Operation, generating a control voltage corresponding to the speed reference to regulate a voltage magnitude using the control voltage in a voltage magnitude regulation Operation, and re-accelerating the induction machine up to a target speed after the regulation of the voltage magnitude in a re-acceleration Operation.


Provided is a method of evaluating performance of a photovoltaic module and a system therefor. The method of evaluating performance of the photovoltaic module according to the present invention has an advantage of more accurately evaluating and predicting a service life and/or performance of the photovoltaic module by reflecting a deterioration index of a photovoltaic module component on a first output value calculated using an electronic-optical diode (E/O diode) model for the photovoltaic module.


Patent
Yeungnam University and Kunsan National University | Date: 2016-11-10

The present disclosure relates to a method for hash collision detection based on the sorting unit of the bucket designed to reduce the future search time by pre-aligning the database in the bucket and to enhance the efficiency in a search within the database. The present disclosure, a method for hash collision detection based on the sorting unit of the bucket using conventional separate chaining method, comprises aligning records in a single bucket of a directory in ascending order or descending order and maintaining the alignment of records in the bucket when new records are added to the directory.


Patent
Yeungnam University | Date: 2016-09-02

Provided is a method for surface-treatment of a metal using bacteria, and more particularly, a method for surface-treatment of a metal using bacteria including immersing the metal having a surface layer on which a deformed layer is formed in a culture fluid cultured with metal-oxidizing bacteria, such that the metal-oxidizing bacteria selectively oxidize and leach-remove the deformed layer of the metal to perform micro-machining, thereby minimizing a damage to a metal basic material to effectively remove the deformed layer of the metal, and further including partly coating a surface of the metal to produce fine patterns of which sizes and shapes are various.


Patent
Yeungnam University | Date: 2015-02-06

The present disclosure is a method to measure the distance between the place where the first image is acquired and the target distance after comparing and analyzing the image acquired through vision sensor with the established database. The database stores images of each section and image information by using the vision sensor. The distance measuring method analyzes the characteristics of the images transmitted by a user and the characteristics of the objects on images, compares them with the database, selects the image most similar to the corresponding image from the database, and calculates the distance to the user.

Loading Yeungnam University collaborators
Loading Yeungnam University collaborators