• Journal of Convergence Society for SMB
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• v.4 no.1
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• pp.31-39
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• 2014

PID auto-tuning controller was designed via fuzzy logic. Typical values such as error and error derivative feedback were changed as heuristic expressions, and they determine PID gain through fuzzy logic and defuzzification process. Fuzzy procedure and PID controller design were considered separately, and they are combined and analyzed. Obtained auto-tuning PID controller by Fuzzy Logic showed the ability for less than 3rd order plant control. We also applied to reference tracking problem with the designed auto-tuning scheme.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 2005.11a
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• pp.249-252
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• 2005

본 논문에서는 자동차를 운전 시에 운전자의 얼굴과 눈의 영역을 자동으로 검출하고 눈동자를 추적하여 운전자의 졸음 여부를 판단하는 효과적인 시스템 구현방법을 제안한다. 복잡한 배경에서 얼굴과 눈을 검출하는 방법은 Haar-like feature의 원리를 이용하고 졸음운전으로 판단하는 방법은 눈동자 영역의 특성과 눈동자의 검출 유무, 움직임 등의 인식을 통하여 졸음운전 경보시스템의 실용화에 대한 가능성을 확인한다.

• Annals of Clinical Neurophysiology
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• v.11 no.1
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• pp.33-36
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• 2009

Bickerstaff's brainstem encephalitis (BBE) is an autoimmune central nervous system disorder. It can occur in more limited forms and may overlap with Guillain-Barr$\acute{e}$ syndrome (GBS). A 49-year-old female presented with rapidly progressive paralytic ileus, urinary retention, deep drowsiness, ophthalmoplegia, dysarthria, ataxia, quadriparesis and hyporeflexia after viral meningitis. She was diagnosed as BBE with GBS and treated with immunoglobulin. She was completely recovered after 1 month. It is a rare case of BBE overlapping with GBS presenting with severe paralytic ileus.

• Journal of The Korean Society of Clinical Toxicology
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• v.5 no.1
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• pp.43-45
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• 2007

Carbon dioxide is the fourth most abundant gas in the earth's atmosphere, and it is widely used in the chemical industry. Solid carbon dioxide is commonly known as dry ice. At low concentration, carbon dioxide appears to have little toxicological effect. At higher concentrations, however, it can produce an increased respiratory rate, tachycardia, cardiac arrhythmia, loss of consciousness, convulsion, and even death. Management of carbon dioxide poisoning requires the immediate removal of an individual from the toxic environment and administration of oxygen. It is important to know the concentration of carbon dioxide to which a patient has been exposed. We report a case of acute poisoning from solid carbon dioxide in a patient presenting with drowsiness and diminished mental capacity when she arrived in the emergency department. She recovered completely after administration of oxygen with conservative treatment.

• Journal of Korean Neurosurgical Society
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• v.58 no.4
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• pp.397-400
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• 2015

The simultaneous occurrence of an intracranial and a spinal subdural hematoma (SDH) is rare. We describe a case of cranial SDH with a simultaneous spinal SDH. An 82-year-old woman visited the emergency room because of drowsiness and not being able to walk 6 weeks after falling down. A neurological examination showed a drowsy mentality. Brain computed tomography showed bilateral chronic SDH with an acute component. The patient underwent an emergency burr-hole trephination and hematoma removal. She exhibited good recovery after the operation. On the fourth postoperative day, she complained of low-back pain radiating to both lower limbs, and subjective weakness of the lower limbs. Spine magnetic resonance imaging revealed a thoracolumbosacral SDH. A follow-up spinal magnetic resonance imaging study that was performed 16 days later showed a significant decrease in the size of the spinal SDH. We discuss the pathogenesis of this simultaneous occurrence of spinal and cranial SDH.

• Journal of Korean Clinical Health Science
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• v.3 no.2
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• pp.354-360
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• 2015

Purpose. The purpose of this study was conducted to identify college students' sleep type and awareness of sleep. Methods. We researched 250 students in a college using the Korean Translation of Composite Scale(KtCS) and awareness of sleep questionnaire. Results. The sleeping hour of college students was 395.28 minute in average. The research showed that the biggest reason for the lack of sleep is using the computer, mobile and watching TV(22.6%), and most of them said that the lack of sleep is causing drowsiness during the daytime( 29.2%). For the questions asking when they feel drowsy during the daytime, most of them forcing themselves to stay awake(29.2%) and they caught up on sleep on the weekend(32.5%). Conclusions. Therefore college students to keep relevant sleep time and to know about the importance of the sleep.

• The Transactions of the Korean Institute of Electrical Engineers D
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• v.53 no.4
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• pp.300-308
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• 2004

Nowadays, many people have a lot of time on chair in their life. If the sitting posture is not correct, there is some trouble with the waist. And if the sitting posture goes on long time at a slant, it sometimes causes the hurts of waist or the deformded spinal column. A crouched posture is an obstacle to breath and it give rise to drowsiness because of the lack of oxygen. The sitting posture is a habit so that people can't feel it oneself and look over some kind of risks. The evaluation of the sitting posture is analyzed by measuring EMG of spinal both side of spinal-bones. In this paper, we can evaluate a right the sitting posture by analyzing the increase of the tention of muscle in one or the other side of muscles when the posture inclines one side and describes the usefulness of the signal of EMG to evaluate the influence of the sitting posture on waist.

• Korean Journal of Veterinary Research
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• v.9 no.1
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• pp.79-82
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• 1969

Aspergillosis outbroken in I to 2-week-old chicks in a poultry-farm at Tae-gu district were observed in april, 1959. Clinical and pathological manifestations of the cases were as follows: 1. Clinically, inappetence, drowsiness, and increased thirst were observed in the early stage. In the later stage, extreme dyspnea, emaciation and retarded growth were main features. There was diarrhea in a few cases. 2. Macroscopically, tubercle-like nodules in the lung and cloudy swelling of the parenchymatous organs were present. Histologically, the lung was shown suppurative bronchitis and bronchopneumonia. Hyphae, myceilia, sterigmata and free spores of aspergillus were observed in the center of the nodules and the bronchial lumen.

• YAKHAK HOEJI
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• v.38 no.6
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• pp.733-741
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• 1994

To detect anxiolytic activity from Sanguisorbae Radix we used various animal models of fear or anxiety that are sensitive to known anxiolytic drugs. While diazepam showed significant anxiolytic activities in all five animal models empolyed in this study, $5-HT_3$ antagonist ondansetron and ethylacetate fraction of Sanguisorbae Radix did show anti-anxiety effects in social interaction and two compartment exploration tests. Ethylacetate fraction of Sanguisorbae Radix and 5-HT related drugs like ondansetron and buspirone, however, seem to have merit over diazepam in terms of not causing drowsiness. Among ten subfractions obtained from ethylacetate fraction of Sanguisorbae Radix by silica gel chromatography, subfraction I showed higher anxiolytic activities than subfraction DEF in two animal models, social interaction and two compartment exploration tests. There is growing evidence for the role of 5-HT in the control of anxiety. We hope that new compound(s) will be found from the active fractions of Sanguisorbae Radix as a potential anxiolytic agent in the future.

• Journal of the korean academy of Pediatric Dentistry
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• v.5 no.1
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• pp.76-82
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• 1978

To evaluate clinically effect of Valium and Sodium pentobarbital as premedicating agent, both drugs and a placebo were compared in 45 patients (2 to 11 yrs). The results were as follows. 1. Both Sodium pentobarbital and Valium were superior to placebo for control of crying, cooperation and apprehension, but the statistically differences were not significant. 2. Both Valium and Sodium pentobarbital were superior to placebo for control of behavior in tense cooperative child; the differences were significant statistically. 3. The difference between Pentobarbital and Valium were-more pronounced at the initial level than at the subsequent readings, and Sodium pentobarbital was for superior at the initial level to the other drugs. 4. Paradoxical excitement occured in 2 cases on the Sodium pentobarbital group, and other apparent side effect did not occur, excluding mild drowsiness. 5. Neither Valium nor Sodium pentobarbital, as used in this study, resulted in consistantly better behavior in all patients.