Kongju, South Korea

Kongju National University

english.kongju.ac.kr/
Kongju, South Korea

Kongju National University is a university located in Chungcheongnam-do, South Korea with three campuses in Gongju, Cheonan and Yesan. Kongju National University is 2014 International Education Quality Assurance System certified university. Wikipedia.

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Patent
Republic Of Korea Management Rural Development Administration and Kongju National University | Date: 2013-05-22

Disclosed herein is an agricultural agent containing a 2,5-diketopiperazine derivative capable of controlling plant diseases and promoting plant growth or an agriculturally acceptable salt thereof as an active ingredient.


Patent
Samsung and Kongju National University | Date: 2014-02-19

An apparatus and method for ray tracing includes a traversal (TRV) unit using a tree acceleration structure (AS). The TRV unit may include a plurality of sub-pipeline units configured to perform different operations required for ray TRV using the tree AS and to operate in parallel.


Patent
Kongju National University and Samsung | Date: 2014-03-27

A cache memory system and a method of operating the cache memory system are provided. The cache memory system includes: an address buffer for receiving address bits including a cache address and a tag address from the outside or externally; a cache memory including a memory array, the cache memory outputting, from a row of the memory array which the cache address designates, a plurality of pieces of tag data and a plurality of pieces of cache data corresponding to the plurality of pieces of tag data; and a register configured to temporarily store a data set including the plurality of pieces of cache data output from the cache memory.


Patent
Electronics, Telecommunications Research Institute and Kongju National University | Date: 2014-09-02

A method and apparatus for transmitting a signal for channel estimation through a plurality of antennas are provided. A plurality of resources that are adjacent to each other in a time axis and a frequency axis are selected from among a set of resources that include a symbol in the time axis and a subcarrier in the frequency axis. Reference signals for the plurality of antennas are transmitted through the selected plurality of resources.


Patent
Samsung and Kongju National University | Date: 2014-05-07

A pipeline system includes input buffers, a relay for controlling withdrawal of data stored in the input buffers, and functional blocks for performing one or more processing operations. A method of operating a pipeline system includes withdrawing data from one of input buffers and performing different one or more processing operations.


Patent
Kongju National University and Samsung | Date: 2013-08-02

An apparatus and method for ray tracing includes a traversal (TRV) unit using a tree acceleration structure (AS). The TRV unit may include a plurality of sub-pipeline units configured to perform different operations required for ray TRV using the tree AS and to operate in parallel.


A sensitive gas chromatographic method has been established for the determination of bromate in ozonated and chlorinated water, and in sea water. With acidic conditions, bromate reacts with chloride to form bromine, which reacts with 2,6-dialkylphenol to form 4-bromo-2,6-dialkylphenol. The organic derivative was extracted with ethyl acetate after quenching remaining oxidants with ascorbic acid, and then measured by gas chromatography-mass spectrometry (GC-MS). The lowest detection limit and limit of quantification of bromate in drinking water were 0.02 and 0.07μg/L, respectively, and the calibration curve showed good linearity with r 2=0.998. The 32 common ions did not interfere even when present in 100-fold excess over the bromated ion. The accuracy was in a range of 102-106% and the precision of the assay was less than 6% in chlorinated and ozonated tap water, ozonated mineral water, and sea water. The method was sensitive, reproducible and simple enough to permit reliable analysis of bromate to the ng/L level in water. © 2011 Elsevier B.V..


Choi J.-H.,Kongju National University
Separation and Purification Technology | Year: 2010

A carbon electrode was fabricated in a simple and inexpensive manner through a drying process after casting an electrode slurry made of activated carbon powder (ACP) blended in a polymer solution on the current collector. The electrochemical characteristics of the fabricated electrode were analyzed, and the salt removal efficiency was studied by changing the electrode potential and flow rate after manufacturing a unit cell. An analysis of the characteristics of the fabricated electrode through cyclic voltammetry and impedance spectroscopy indicated a capacitance of 0.47 F/cm2. An electrochemical oxidation/reduction reaction occurred when the potential was applied under the influence of a functional group extant on the ACP surface. Salt removal tests using a 200-mg/L NaCl solution, conducted by preparing a CDI unit cell with the fabricated electrode, indicated a high average salt removal efficiency of 77.8% with an applied 1.5-V electrode potential and a 20-mL/min solution flow rate. The adsorbed ions were mostly desorbed within 1 min after applying a desorption potential, indicating that the desorption proceeded at a high speed. © 2009 Elsevier B.V. All rights reserved.


Patent
Kongju National University | Date: 2015-07-27

Provided is an apparatus and method for detecting leakage current in DC applications, capable of separately operating depending on leakage current patterns of a human body and a facility in a TN grounding system. The apparatus for detecting the leakage current is a leakage current detector in a DC distribution system of the TN grounding manner and includes a leakage current detecting unit configured to detect a current flow between a DC power unit and a load to detect whether the leakage current is generated and a level of the leakage current and a leakage current determining unit configured to determine that the cause of the leakage current is either an electric shock to a human or a facility ground fault according to a rate of hourly change in the level of the leakage current detected in the leakage current detecting unit.


Disclosed are a hydraulic binder composition using rapidly-cooled steelmaking reduced slag powder and a method of preparing the same. More particularly, the rapidly-cooled steelmaking reduced slag (RC-LFS) powder is obtained by spraying and scattering gas at a high pressure and high speed onto electric furnace smelting reduction slag, which is one of the by-products generated during iron smelting performed in an ironworks, and quickly cooling and pulverizing the slag. The initial high hydration heat reaction and initial setting of the rapidly-cooled steelmaking reduced slag (RC-LFS) powder are delayed to ensure workability. A retardant and gypsum are mixed into the rapidly-cooled steelmaking reduced slag (RC-LFS) powder so as to activate the generation of needle-shaped ettringite and to thus develop the initial and long-term strength, and therefore the rapidly-cooled steelmaking reduced slag (RC-LFS) powder of the present invention can be used as a substitute for ordinary Portland cement.

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