• Journal of Korea Society of Digital Industry and Information Management
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• v.11 no.4
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• pp.99-112
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• 2015

Drones are more formally known as unmanned aerial vehicles without a human pilot aboard. Its flight is controlled either autonomously by onboard computers or by the remote control of a pilot on the ground. This research aims to analyze market trends and technological developments of drones, use cases and constraints of drones in the cultural industries take advantage of the possibility of future drones. Drones are looking for broadcasting, movie, theater, games, toys drones and racing games in a variety of cultural industry. The biggest problem of drone shall provide penalties for breaches of privacy and security issues in the debate. Drones performances are required such as battery capacity and compactness because of the technical limitations. The drones are expected to be used in various fields such as journalism drone, performance tools, augmented reality games, kidult culture. The drones can create a new cultural industry market such as the combination of robotics and drone journalism, drone crowded theater, utilizing drones character games, racing games etc. In conclusion, drones help reduce manpower, time and costs dramatically and will contribute to creating added value in the cultural industries.

• Journal of Veterinary Clinics
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• v.15 no.1
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• pp.180-183
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• 1998

A 5 year-old male Throughbred horse housed in Korean Racing Association died after having enteritis and respiratory disorder for about 10 days. At necropsyi the left and right caudal lung lobes were reddenedi swolleni and contained numerous well-defined sublobular consolidated foci. The large intestine was diffusely reddened and covered with pseudomembranous exudates. Microscopicallyi multifocal areas of necrosis with mild to moderate infiltration of neutrophilsi macrophages and Iymphocytes as well as hemorrhage and edema were noted in the lung. The fungi having conidiophorei dome-shaped vesicles phialides and conidia which are characteristic of Apergillosis fumigatus was isolated from the lung. The colonic mucosa was transmurally necrotic and severe congestions edema and thrombi were observed in the submucosa. The embolic mycotic pneumonia present in this case Probably occured secondary to antibiotic therapy given for treatment of enteritis.

• Korean Journal of Veterinary Research
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• v.42 no.1
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• pp.115-121
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• 2002

The present study was conducted to investigate the pattern of fracture of 50 Thoroughbred foals in Jeju from January 1997 to August 2001. A total 50 Thoroughbred foals were investigated to figure out the relationship between breeding condition and fracture. The fracture was diagnosed by physical and radiological examinations after lameness test. Most sites of fracture were limb, skull and vertebrae. Age analyzed that the most popular is the 1-year-old foals. Most places of the occurrence of the fracture were pasture, paddock, track and stable. Main cause of the fracture were play, training and foal's dam. These results suggest that there were the 1-year-old foals have a lot of fracture during play at pasture in winter.

• Journal of Veterinary Clinics
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• v.38 no.4
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• pp.199-203
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• 2021

A 4-year-old Thoroughbred mare was brought to the Korea Racing Authority Equine Hospital with heightened sensitivity to touch of the hindquarter, reluctance to step forward, frequent urination even during training, clitoral winking, tail swinging, tail lifting, and training difficulties due to being in constant heat. The trainer claimed that she was in heat and exhibited reduced performance. Physical and lameness examinations revealed no abnormality. Rectal palpation and transrectal ultrasonography revealed normal reproductive organs and estrus. As she exhibited typical estrous behavior without any other physical conditions, the mare was considered to express undesirable estrous behavior. An intrauterine glass ball was inserted into the mare on ovulation day. However, the estrous behaviors were reduced unsatisfactorily. Additionally, 1 mL of peanut oil was administered on the 10th day after the intrauterine device insertion. The mare returned to training and expressed no undesirable estrous behavior over 30 days after the peanut oil treatment. However, further follow-ups were not conduct as the mare was retired to a farm after a limb injury occurred during training. This is the first report of undesirable estrous behavior in a Thoroughbred mare under the rules of racing in Korea. It is recommended that equine clinicians in Korea consider peanut oil as a therapeutic agent to control mares' estrous behavior-related problems.

• Korean Journal of Veterinary Research
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• v.39 no.6
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• pp.1081-1090
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• 1999

To establish the protocol of a standardized exercise test for evaluating exercise intolerance and degree of fitness in Thoroughbred racehorses, we examined serum lactate concentrations related to exercise intensities using the high speed treadmill. Twelve clinically healthy Thoroughbred racehorses with or without previous training or racing history were assigned to two gorups, fit and unfit group, respectively. The protocol used for the standardized exercise test was consisted of two stages : stage of warm-up and that of acceleration. During the warm-up, the horses exercised 5 min at 1.8m/s and 3 min 3.4m/s without inclination. At the acceleration stage, exercise test was performed at 10% slope and the speed was increased from the initial 5m/s to the maximal speed which each tested horse could keep up with. The speed was increased with incremental steps of 1 m/s every minute. During the last 15 sec of each step, blood samples were collected for serum lactate determination. $V_{max}$(maximal treadmill speed which tested horses could keep up with) of the fit group ($10.93{\pm}0.33m/s$, mean${\pm}$SE, n = 6) was higher than that of the unfit group ($9.52{\pm}0.23m/s$, mean${\pm}$SE, n = 6). Serum lactate concentrations increased exponentially according to exercise intensities. $V_{La4}$(speed producing a serum lactate concentration of 4mmol/l) of the fit group, $6.45{\pm}0.26m/s$, was higher than that of the unfit group, $5.45{\pm}0.23m/s$. $La_{peak}$(peak plasma lactate concentration during the exercise test) was lower in the fit group ($20.34{\pm}1.62mmol/l$ at 1 min after maximal intensity exercise) than in the unfit group ($24.78{\pm}1.09mmol/l$ at 2 min after maximal exercise step). $t_{50%}$(time required for the recovery of lactate concentration to be one-half of $La_{peak}$ after maximal exercise) of the unfit group and the fit group were 40.0 and 18.0 min, respectively. Therefore, the protocol of the incremental standardized exercise test utilized in this study seems to be reliable for the assessment of fitness and exercise intolerance for the Thoroughbred racehorses.

• Journal of Life Science
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• v.31 no.9
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• pp.840-848
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• 2021

This study was conducted to estimate annual trends and the environmental effects in the racing records of Jeju horses. The Korean Racing Authority (KRA) collected 48,645 observations for 2,167 Jeju horses from 2002 to 2019. Racing records were preprocessed to eliminate errors that occur during the data collection. Racing times were adjusted for comparison between race distances. A stepwise Akaike information criterion (AIC) variable selection method was applied to select appropriate environment variables affecting racing records. The annual improvement of the race time was -0.242 seconds. The model with the lowest AIC value was established when variables were selected in the following order: year, budam classification, jockey ranking, trainer ranking, track condition, weather, age, and gender. The most suitable model was constructed when the jockey ranking and age variables were considered as random effects. Our findings have potential for application as basic data when building models for evaluating genetic abilities of Jeju horses.

• Journal of Korean Association for Spatial Structures
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• v.6 no.2 s.20
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• pp.20-24
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• 2006

• Korean Architects
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• s.460
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• pp.52-57
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• 2007

• Korean Journal of Applied Biomechanics
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• v.15 no.2
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• pp.197-207
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• 2005

The purpose of this study was to investigate the body segment kinematics by lap time during men's 5,000m racing. The subjects in this study were 4 male athletics who take part in the competition. The two dimension motion analysis with DLT(direct linear transformation) method was executed using digital video cameras. The following conclusion was that : It was shown that top ranking in a competition is continuous race pattern and the last Lap time is the most fast. It was shown that top ranking in a competition is continuos the stride length and it was the largest in the last Lap time. It was shown that according to the passing Lap time trunk frontal angle was decreasing and shoulder angle was continuous.

• Journal of Veterinary Clinics
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• v.26 no.1
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• pp.69-71
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• 2009

A 2-year-old, female Thoroughbred racehorse was referred to the Equine Hospital of Korea Racing Authority. The horse was presented with fluctuant swelling at the base of the left temporal ear tooth. We performed physical examination, radiography and ultrasonography, and diagnosed as dentigerous cyst on the left temporal ear tooth-(dentigerous cyst). The horse was treated with removal of a dentigerous cyst(aural fistula). After surgical procedure for 12 days, the patient was recovered completely.