• Korean Journal of Veterinary Service
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• v.33 no.3
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• pp.293-297
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• 2010

Serum proteins of Korean native dogs (Gyeongju DongGyeong dogs) was analyzed by capillary electrophoresis system. Electrophoretic patterns showed six fractions. Total serum protein and ratio of albumin to globulin were $5.99{\pm}0.83$ (g/dl) and $1.41{\pm}0.29$ (g/dl) in DongGyeong dogs. Relative percentages of total serum albumin and $\alpha-1$, $\alpha-2$, $\beta-1$, $\beta-2$, $\gamma$-globulin fraction were $57.94{\pm}5.43$, $3.15{\pm}2.30$, $7.49{\pm}4.09$, $9.43{\pm}3.50$, $7.63{\pm}5.70$, and $14.36{\pm}7.63$, respectively. It was observed that $\beta$-globulin was higher than other fractions. The most striking alternation with age was founded in the $\gamma$-fractions. Also, it was observed that ratios of albumin to globulin in DongGyeong dogs were higher than on other dogs.

• Transactions on Electrical and Electronic Materials
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• v.11 no.2
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• pp.61-64
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• 2010

In this paper, we investigate the quality difference of SiC crystals grown by a conventional physical vapor transport method using various SiC powders. While the growth rate was revealed to be dependent upon the particle size of the SiC powder, the growth rate of SiC bulk crystals grown using SiC powder with a smaller particle size (20 nm) was definitely higher than those using lager particle sizes with $0.1-0.2\;{\mu}m$ and $1-10\;{\mu}m$, respectively. All grown 2 inch SiC single crystals were proven to be the polytype of 6H-SiC and the carrier concentration levels of about $10^{17}\;cm^3$ were determined from Hall measurements. It was revealed that the particle size and process method of SiC powder played an important role in obtaining a good quality, high growth rate, and to reduce growth temperature.

• Journal of Korea Foundry Society
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• v.14 no.6
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• pp.548-557
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• 1994

Grey iron containing a small amount of Cu and Mo to improve the effect of heat treatment and microstructures were poured in to the mold and them austenized at $900^{\circ}C$. After austenitizing the specimens of castings were austempered $210^{\circ}C$, $250^{\circ}C$, $300^{\circ}C$ and $350^{\circ}C$. The effects of matrix structures, mechanical properties and wear characteristics were investigated by austempering temperatures. Tensile strength and hardness of austempered grey iron are increased and the amount of retained austenite is decreased as austempering temperature is lower even though the amount of retained autenite in it only 4%. The amount of rolling wear loss are increased as rolling revolution is increased and wear loss of austempered grey iron under dry rolling condition is characterized by three models; initial wear, stationary wear and abnormal wear. It has been found that the amount of wear loss was increased with increasing maxium compressive stress and rolling revolution.

• International Journal of Internet, Broadcasting and Communication
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• v.12 no.1
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• pp.122-129
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• 2020

The circumference of the body is not only an indicator in order to buy clothes in our life but an important factor which can increase the effectiveness healing properly after figuring out the shape of body in a hospital. There are several measurement tools and methods so as to know this, however, it spends a lot of time because of the method measured by hand for accurate identification, compared to the modern advanced societies. Also, the current equipments for automatic body scanning are not easy to use due to their big volume or high price generally. In this papers, OpenPose model which is a deep learning-based Skeleton Tracking is used in order to solve the problems previous methods have and for ease of application. It was researched to find joints and an approximation by applying the data of the deep camera via reference data of the measurement parts provided by the hospitals and to develop a program which is able to measure the circumference of the body lighter and easier by utilizing the elliptical circumference formula.

• Journal of Korea Foundry Society
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• v.16 no.2
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• pp.124-131
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• 1996

High temperature properties such as hot hardness and thermal fatigue resistance of high speed steel roll of hot finishing mill have been investigated. Two kinds of roll having compositions, Fe-1.75%C-5.9%Cr-1.74%Mo-4.94%V-2.03%W(A specimen) and Fe-2.27%C-8.86%Cr-2.91%Mo-3.92%V-1.86%W(B specimen)were prepared for investigating the microstructure and crack propagation mode. A specimen has greater amounts of $M_7C_3$ type carbides and less amounts of MC type carbides in comparison with B specimen. Hot hardness showed sudden decrease over $400^{\circ}C$, resulting in the hardness decrease of 50% at the temperature of $600^{\circ}C$, and showed little variation with time at $500^{\circ}C$ and $800^{\circ}C$. Thermal crack was developed at $550^{\circ}C$ in A specimen and $600^{\circ}C$ in B specimen.

• Journal of Korea Foundry Society
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• v.11 no.6
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• pp.463-474
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• 1991

The effect of $0.01{\sim}0.10%$ Sb and Sn on the wear resistance of ductile cast iron was investigated. The hardness was increased with Sb to 0.10%, but the elongation and the impact value were decreased. The tensile strength was increased with up to 0.05% Sb, however decreased with $0.05{\sim}0.10%$ Sb. The hardness and the tensile strength were increased and the elongation was decreased with up to 0.10% Sn. The nodularity of graphite was decreased with above 0.08% Sb however Sn had no effect on that. When the maximum compressive stress was low ($42kg.f/mm^2$), the weigth loss was decreased with increased hardness and when that was high ($54kg.f/mm^2$ and $65kg.f/mm^2$), the weight loss did not depend upon the hardness. The pearlite stabilization with Sb and Sn increased with the wear resistance of ductile cast iron.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.18 no.1
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• pp.96-103
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• 2005

To analyze the reason of aging deterioration in transmission line insulators, we performed a various kind of test and investigated mechanical and electrical characteristics of insulators. Test samples consisted of K-1989(36,000lbs), K-1995(36,000lbs) and K-2001(36,000lbs) type insulators which have been used in domestic 154 kV transmission lines. As a result of this test, the facts turned out K-2001 insulator which contain 17 wt.% alumina has better physical characteristics than K-1989 insulator which contain 8 wt% alumina. Relativity density and fracture toughness of K-1989 porcelain are 94.2 % and 1.4 MPa\ulcornerm$^{1}$2// but relativity density and fracture toughness of K-2001 porcelain are 96 % and 1.7 MPa\ulcornerm$^{1}$2//. K-2001 insulators show a good performance not only in a physical property test but also in power arc test and steep front of wave flashover test which is performed to evaluate electrical characteristics.

• Korean Journal of Veterinary Service
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• v.33 no.4
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• pp.367-373
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• 2010

Investigations for hematologic and biochemical values for Gyeongju DongGyeong dogs were performed. This study were conducted to determine normal blood and serum chemical values on DongGyeong dogs. Normal blood and serum chemical values were studied in 47 healthy dogs (male 28, female 19). The hematologic and serum chemistry results were confirmed by age, sex, shape of tail. The hematological values showed no difference from Korea native dogs. The hematocrit values ($49.0{\pm}8.1$(%)) of DongGyeong dogs (2-3 years group) were significantly higher than other dogs. The mean levels of MCV ($61.6{\pm}3.8({\mu}m^3)$) in DongGyeong dogs were lower than general dogs. The levels of cholesterol($220{\pm}80.5$(mg/dl)) and inorganic phosphorus ($3.6{\pm}1.0$ (mg/dl)) of DongGyeong dogs (2~3 years group) were significantly higher than Korea native dogs. Totally concentration of triglyceride ($66.2{\pm}17.0$ (mg/dl)) of DongGyeong dogs were significantly lower than Korea native dogs. The mean values of BUN were increased with age but no significantly. In conclusion, data obtained from this study may be valuable as a standard for interpretation of the results in hematologic and biochemical analysis of Gyeongju DongGyeong dog populations.

• Journal of Korean Medicine Rehabilitation
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• v.19 no.4
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• pp.175-187
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• 2009

Objectives : This study was performed to evaluate the effect of facial rejuvenation acupuncture on cases of sequela of facial nerve palsy. Methods : This study was carried out in respect of 5 cases of sequela of facial nerve palsy patients which had been treated in Dong-Shin university oriental hospital from 2009 year with House-Brackmann grading system(HBGS) above Grade IV. In this study the patients were treated by facial rejuvenation acupuncture. The effect of the treatment were evaluated via scales and picture. Results : After treatment with facial rejuvenation acupuncture, 5 patients improved H-B scale and symptoms of the sequela of facial nerve palsy. The average of H-B scale was increased from 3.2 to 6.4. There also formed forehead folds, better blinking of the eyes and improved asymmetry of the left and right face. Conclusions : In the study, facial rejuvenation acupuncture showed marked improvement in sequela of facial nerve palsy. Randomized-controlled trial for further evaluation will be needed in the future.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.25 no.1
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• pp.146-151
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• 2021

Currently, the demand for vehicles from one family is increasing in many countries at home and abroad, reducing the number of people on the vehicle and increasing the number of vehicles on the road. The multi-passenger lane system, which is available to solve the problem of traffic congestion, is being implemented. The system allows police to monitor fast-moving vehicles with their own eyes to crack down on illegal vehicles, which is less accurate and accompanied by the risk of accidents. To address these problems, applying deep learning object recognition techniques using images from road sites will solve the aforementioned problems. Therefore, in this paper, we compare and analyze the performance of existing deep learning models, select a deep learning model that can identify real-time vehicle occupants through video, and propose a vehicle occupancy detection algorithm that complements the object-ident model's problems.