• Journal of Chest Surgery
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• v.7 no.2
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• pp.163-168
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• 1974

Five cases of traumatic diaphragmatic hernia were repaired in the Department of Thoracic Surgery, Seoul National University Hospital, during the period from 1967 to 1974. The first case, a 14-year aid girl, was diagnosed as diaphragmatic hernia during laparotomy because of jejunal perforation 3 days after traffic accident. Herniated stomach, transverse colon, spleen and left lobe of the liver were repositioned and the diaphragmatic rupture on left posterolateral portion was repaired with two layers of nonabsorbable sutures by transthoracic approach. The second case, a 26-year old man,was diagnosed immediately after traffic accident at a local clinic and transferred to this hospital 24 hours later. Herniated stomach, transverse colon and jejunum were repositioned amd diaphragmatic rupture,about 9 cm in length,from the posterolat.edge to the base of pericardium was sutured in two layers. The third case, a 26-year old man who had stab wound on the left lower lateral chest two years ago,was admitted with sudden abdominal pain and vomiting. Upper gastrointestinal series with barium meal revealed diaphragmatic hernia. The herniated stomach and transverse colon through the defect,about 3.5cm in diameter, at anterolateral portion on the left side,were repositioned and repaired with two layers of nonabsorbable sutures. The forth case, a 26-year old man, sustained blunt trauma to the chest by a roller and was transferred to the emergency room complaining of dyspnea 40 minutes after the accident. The diaphragmatic rupture extended from left midaxillary line to contralateral anterior axillary line,about 20cm long, at anterior portion of diaphragm, which was repaired with two layers, of nonabsorbable sutures. The fifth case, a 4-year old girl, had two separate diaphragmatic ruptures on both sides, which were caused by traffic accident. Immediate upper gastrointestinal series after injury showed herniated stomach, colon and spleen into left Chest cavity. Another small rupture with anterior edge of right lobe of the liver in chest cavity was noted. These were repaired with non-absorbable sutures via thoracotomy.

• The Journal of the Korea Contents Association
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• v.9 no.11
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• pp.424-431
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• 2009

The research under necessary for systematic study is about recognizing on the Internet marketing in the Food Service Industry. After searching the actual condition with the object of the Lovedaejeon 'Foodservice member, the goal is using fundamental data for strategic marketing plan making systematic Internet marketing in the Food Service area. Analytical result, the influx search which finds the Lovedaejeon 'Foodservice is 3 kinds to be highest : Daejeon, the Daejeon tasty house and fixation keyword of tasty house etc. As for visit area, Daejeon 47.9%, Re-visit 31.9% of 12 hours within re-visit. From tasty house coupon down load, 친친만년점 restaurant 1,837 and from member connection statistics of man and woman, the man is higher than the woman statistically, the marriaged man was higher than the single one. Like this research result, there will be a possibility becoming the fundamental data which is useful in Food Service Industry on the Internet marketing.

• Tuberculosis and Respiratory Diseases
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• v.66 no.3
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• pp.211-215
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• 2009

Pulmonary thromboembolism occurs in old patients with risk factors, such as, immobilization, chronic medical disease, trauma, a hereditary hypercoagulable state, and others. However, we experienced a young man with a massive pulmonary thromboembolism attributed to immobilization due to computer gaming. The patient had been playing computer games in a seated position for at least five hour continually, and for twelve hours per day over a two-week period. The 36-year-old patient was transferred to our institute rule out the possibility of an acute myocardial infarction. Computer tomography revealed intraluminal filling defects in the distal main pulmonary artery and the left popliteal vein. He received thrombolytic therapy and subsequently recovered without complications. This case raises the possibility that prolonged computer gaming is a risk factor of thromboembolism in young adults.

• Journal of the Korea Organic Resources Recycling Association
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• v.9 no.3
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• pp.111-118
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• 2001

This study was performed to analyze collection parameters for food wastes, which were used to estimate man power and vehicles required to collect those. For this purpose, collection activities were separated into unit operations, such as a pickup, a haul and at-site, and design data that can be used generally were developed by survey and interpretation. In case of a detached dwelling area, the pickup time to collect 1ton of food wastes(Phcs) was $3.3man{\cdot}hour$ and haul time was 22.4km/hour. At-site time of a collection vehicle to load 2.5ton of food wastes was 5minutes and that time was varied according to the loading quantity of vehicles. The estimation of collection time(Thcs), required to move 2.5ton of food wastes from a pickup location to a treatment facility in the same condition for vehicles and man power, showed that Thcs for an apartment area was 3.03hours and for a detached dwelling area was three times as much as that of for the apartment area. More data should be required to evaluate both typical variables associated with collection activities and the variables related to particular district types.

• Journal of The Korean Society of Clinical Toxicology
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• v.12 no.1
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• pp.35-38
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• 2014

Phentermine has been widely used as an appetite suppressant since 2004 in Korea. The authors experienced two cases of acute phentermine overdose and report with the literature review. A 36-year-old man and a 24-year-old woman presented together to the emergency department with taking 13 tablets (390 mg) of phentermine 16 hours ago. They had tachycardia, hypertension and complained visual symptoms, nausea, insomnia and anxiety. These symptoms were resolved by conservative management.

• 제어로봇시스템학회:학술대회논문집
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• 2003.10a
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• pp.2696-2700
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• 2003

Nuclear robots should be developed for the reduction of radiation exposure, lower man hours, shorter power outage, and also improved worker safety concerns in performing hazardous and dangerous tasks. Among the components of a nuclear robot system, a robot control system equivalent to a human brain is a crucial point because a nuclear robot does not work without a control system. Therefore, in this paper, we will explain the requirements for a robot control system for a nuclear robot from a general point of view and also review the robot control systems of nuclear robots that were developed domestically, to assist a researcher beginning with the design for the control system of nuclear robots. The explained robot control system will be useful to develop the control system for industrial robots, home robots and other robots which are needed for tele-operation and are controlled through the internet.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2009.06a
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• pp.257-258
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• 2009

Nanocomposites of a epoxy resin are synthesized and evaluated the present study investigated. The effect of nanoclay additives on the properties of diglycidyl ether or bisphenol A(DGEBA) epoxy resin. DGEBA was mixed with 3~7 wt% organically modified layered silicate, Cloisite 30B for three hours. The average grain size of the specimens decreased with adding Cloisite 30B. The dielectric constant showed between 3.2 ~ 3.5 and the dielectric loss showed between 3.2 ~ 5.7 % in all specimens.

• Journal of Ocean Engineering and Technology
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• v.23 no.2
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• pp.87-91
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• 2009

The welding distortion of a hull structure in the shipbuilding industry is inevitable at each assembly stage. The geometric inaccuracy caused by welding distortion tends to preclude the introduction of automation and mechanization and requires additional man-hours for adjustment work during the following assembly stage. To overcome this problem, a distortion control method should be applied. For this purpose, it is necessary to develop an accurate prediction method that can explicitly account for the influence of various factors on the welding distortion. The validity of this prediction method must also be clarified through experiments. For the purpose of reducing the weld-induced bending deflection, this paper proposes the plastic counter-deforming method (PCDM), which uses line heating as the optimum distortion control method. The validity of this method was substantiated by a number of numerical simulations and actual measurements.

• Journal of Welding and Joining
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• v.21 no.4
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• pp.75-79
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• 2003

The welding distortion of a hull structure in the shipbuilding industry is inevitable at each assembly stage. This geometric inaccuracy caused by the welding distortion tends to preclude the introduction of automation and mechanization and needs the additional man-hours for the adjusting work at the following assembly stage. To overcome this problem, a distortion control method should be applied. For this purpose, it is necessary to develop an accurate prediction method which can explicitly account for the influence of various factors on the welding distortion. The validity of the prediction method must be also clarified through experiments. For the purpose of reducing the weld-induced bending deflection, this paper proposes the plastic counter-deforming method (PCDM) using the line heating as the optimum distortion control method. The validity of this method has been substantiated by a number of numerical simulations and actual measurements.

• Transactions of the Korean Society of Machine Tool Engineers
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• v.16 no.3
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• pp.56-63
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• 2007

Modern diesel vehicle has to comply with the EURO IV, V regulation with low level of particulate matter and smoke emission Moreover, emission standards of each countries are becoming stringent in advanced countries such as USA and Europe. Because Bio-diesel is similar to diesel fuel, it is essential to judge the environmental and health effects deriving from the use of Bio-diesel in diesel engine. The deterioration characteristics of emission in accordance with aging vehicles must be regulated for Bio-diesel. Therefore, under 1200 driving hours, 220,000km driving distance condition and full load, the deterioration characteristics of emission were estimated. We could reduce sulfur contents of fuel, particulate matter and smoke emission by using Bio-diesel and conform the influence of engine performance, emission, and fuel consumption by Bio-diesel deterioration