• Maxillofacial Plastic and Reconstructive Surgery
• /
• 제18권2호
• /
• pp.298-307
• /
• 1996

Osteochondroma is a common benign tumor of the axial skeleton, especially the distal metaphysis of the femur and the proximal metaphysis of the tibia, however, is occurred rarely on the facial skeleton. Development of the tumor is most frequently seen in the second or third decades of life. Typically, it arises directly from the cortex of the underlying bone, without any intervening zone of abnormal osseous tissue, and is covered by a cap composed of cartilage undergoing calcification. In case of osteochondroma of the mandibular condyle, its clinical features are occulusal change, facial asymmetry, headache, pain and click on temporomandibular joint, mouth opening limitation, and jaw deviation to involved site. This is a case report of a 13-year old woman who had mouth opening limitation and severe temporomandibular joint pain. We obtained successful results with surgical removal of the osteochondroma on the mandibular condyle.

• 대한핵의학회지
• /
• 제12권1호
• /
• pp.9-16
• /
• 1978

It has been suggested that plasma renin activity (PRA) and its response to volume depletion may be abnormal in that it shows little or exaggerated change in patients with chronic renal failure and hypertension. Intravenous furosemide stimulation test was performed in 46 control subjects and 51 patients with chronic renal failure and/or malignant hypertension in order to evaluate PRA response. In contrast to the consistent increase in PRA in control subjects (from $2.5{\pm}1.95\;to\;4.5{\pm}2.51ng/ml/hr$), no consistent increase was observed in patients with chronic renal failure, especially in those who showed favorable response to antihypertensive therapy (from $2.5{\pm}2.21\;to\;2.9{\pm}2.46ng/ml/hr$). But poor responder to antihypertensive treatment showed considerably higher PRA before and after furosemide stimulation (from $4.9{\pm}1.96\;to\;6.4{\pm}1.71ng/ml/hr$) than the responder group did. Moreover, this group seemed to retain the ability to increase PRA in response to intravenous furosemide stimulation. Thus it became apparent that responder group was unable to increase PRA normally in response to furosemide as well as volume depletion, while poor responder seemed to retain that ability. Thus intravenous furosemode may serve as a convenient way to differenfiate those who might be benefited by conservative antihypertensive measures from those who would require more drastic measures such as bilateral nephrectomy for their optimal blood pressure control.

• Journal of Biosystems Engineering
• /
• 제32권3호
• /
• pp.173-178
• /
• 2007

This research was conducted to develop and analyze a wireless monitoring system for judging if sick or dead layers (SDL) exist in multi-tier layers battery (MLB) by machine vision, and to evaluate the performance between a wired monitoring system and it. This study used the AP (Access Point), the RS-285 to RS-232 converter, RS-232 to Ethernet converter, PICBASIC board and upgraded lump image processing method to change wired monitoring system into wireless monitoring system. The system was tested at a pilot farm and farm layer house. Results showed that monitoring judgement success rate at a pilot farm on normal cage (without SDL) was 82.3% and that on abnormal cage (with SDL) was 87.5%, respectively. And communication performance test results showed at farm layer house was $700{\sim}900$ kbps while equipments operated. There were dropped slightly than performance of wired monitoring system, however, the quantity was too small to make a significant difference of performance of the controling system developed for wireless communication.

• 한국화재소방학회논문지
• /
• 제15권3호
• /
• pp.49-54
• /
• 2001

최근 전 세계적으로 개발을 위한 고의적인 방화와 기상이변에 의한 산림화재의 급증과 피해규모가 증가하는 경향을 보이고 있다. 이와 같은 대형 산림화재는 국내에서도 같은 경향으로 나타나고 있다. 산림화재에 가장 효과적인 대응 방법은 화재발생 후의 진압보다는 화재예방 활동이라고 볼 수 있으며, 우선적으로 시급한 연구과제는 산림화재 예방 시스템에 관한 연구라 할 수 있다. 본 연구에서는 산림화재의 종합적 위험등급 개발을 위해 산림화재에 영향을 미치는 인자들에 대해 실험 및 자료들을 분석·고찰하여 6개 인자에 대한 개별적 위험성을 나타내었으며 각 인자들의 위험성 기여도에 따른 가중치를 적용하여 종합위험 등급을 설정하였다.

• Toxicological Research
• /
• 제16권1호
• /
• pp.83-87
• /
• 2000

This study was carriet out to evaluate the acute intravenous toxicity and antigenicity of Guamerin, newly developed by Mogam Biotechnology Research Institute (MBRI). In acute intravenous toxicity test, ICR mice were administered intravenously with single dose of 1,000mg/kg, and body weights and clinical signs were observed for 14 days. No dead animal, clinical signs, body weight change and abnormal autopsy findings were found in control and Gumerin treated group. Therefore, the 50% lethoal dose (LD50) of Guamerin for ICR mice was more than 1,000mg/kg on intravenous route for male and female. And the antigenic potential of Guamerin was examined by active systemic anaphylaxis(ASA) and passive cutaneous anaphylaxis(PCA) tests. In the ASA test, low and high doses (10 and 100ug/animal, respectiwely) of Guamerin were administed subcutaneously to guinea pigs for 9 times 3 weeks. All experimental groups showed negative responses whereas the positive control group given ovalbumin plus Freunds complete adjuvant (FCA) showed severe anaphylactic responses. PCA test using rats with mice anti-serum against Guamerin, low and high doses(10 and 100 ug/animal, respectively) of Guamerin were administered to mice for 9 times in 3 weeks. The anti-serum against Guamerin was administed intradermally at the back of rats, however, any positive responses were not detected in the experimental groups. These results strongly indicate that Guamerin does not induce IgE production and is not a PCA reaction inducer under these experimental conditions.

• Mycobiology
• /
• 제39권1호
• /
• pp.40-44
• /
• 2011

Aspergillus fumigatus is associated with invasive disease aspergillosis in immunocompromised individuals. The major aim of this study was to investigate the biochemical and immunological responses of male Wistar rats against A. fumigatus experimentally-induced pulmonary fungal infection. Nostril experimental exposure of male Wistar rats to a high dose of A. fumigatus freeze-dried preparation for only 24 hr resulted in a significant increase in levels of catalase, nitric oxide and lipid peroxide in lung homogenates, compared to those of the control animals. However, the oxidative status of the lungs of rats challenged with killed fungus did not change significantly, except for the stimulation in the level of lipid peroxide. IgG level was significantly elevated only in rats that received two low doses of fungus, compared to unexposed animals (p < 0.005). Examining the lung of rats exposed to A. fumigatus revealed no abnormal changes, except for pus in bronchial lumen spaces and per bronchial inflammation. Histologically, large numbers of granuloma cells were evident in the lungs of challenged rats, while no granuloma formation was evident in the lungs of rats exposed to killed fungus.

• 한국수의병리학회:학술대회논문집
• /
• 한국수의병리학회 2001년도 추계학술대회 및 정기총회
• /
• pp.21-21
• /
• 2001

The objective of this investigation was to evaluate of dose-incidence relationships on the prenatal effects of gamma-radiation. Pregnant ICR mice were exposed on day 11.5 after conception, coincident with the most sensitive stage for the induction of major congenital malformations, with 0.5-4.0 Gy of gamma-radiations. The animals were sacrificed on day 18 of gestation and the fetuses were examined for mortality, growth retardation, change in head size and any other morphological abnormalities. With increasing radiation dose, incidence of small head, growth retarded fetus, cleft palate, dilatation of cerebral ventricle and abnormalities of the extremities in live fetuses rose. The threshold doses of radiation that induced cleft palate and dilatation of cerebral ventricle, and abnormal extremities were between 1.0 and 2.0 Gy, and between 0.5 and 1.0 Gy, respectively.

• 전기학회논문지
• /
• 제66권10호
• /
• pp.1516-1522
• /
• 2017

We propose a novel monitoring system for diagnosing crack faults of the wind turbine using image information. The proposed method classifies a normal state and a abnormal state for the blade parts of the wind turbine. Specifically, the images are input to the proposed system in various states of wind turbine rotation. according to the blade condition. Then, the video of rotating blades on the wind turbine is divided into several image frames. Motion vectors are estimated using the previous and current images using the motion estimation, and the change of the motion vectors is analyzed according to the blade state. Finally, we determine the final blade state using the Support Vector Machine (SVM) classifier. In SVM, features are constructed using the area information of the blades and the motion vector values. The experimental results showed that the proposed method had high classification performance and its $F_1$ score was 0.9790.

• 동의신경정신과학회지
• /
• 제4권1호
• /
• pp.77-97
• /
• 1993

Human and animals are living by acclimation to environmental changes like high and cold temperature, nose, confinement, etc. If the above changes reach a defined levels, some physiological abnormal state could appear, which we call them as stress state. Catecholamines are excreted by the sympathetic-adrenomedullary system in free from in urine. Catecholamines are derived from the adrenal medulla and urinary epinephrine can be taken as a rough estemation of the activity of this gland. Many scientist reported the endocrinological change, excretion of catecholamine and its metabolites, stomach ulcer formation, etc. under the condition of the confinement and high temperature. In this study author gave restraint, electric shock and immersion stress to rats by administrating by HPLC and got the following results. 1. In the restriant experiment, epinephrine contents in control rat was 194.7 ng, but in Bohyulanshintang administered rat urine 198.9 ng of epinephrine was found. 2. In the electrical shock experiment, 199.5 ng of epinephrine was found in the control rat urine, but in Bohyulanshintang administered rat urine epinephrine content was 142.4 ng. 3. Dopamine contents in control rat urine the immersion environment was 118.9 ng, but in Bohyulanshintang administered rat urine only 55.2 ng of dopamine was found. 4. Incontrol rat stomach there appeared focal erosion and inflamatory exudate, but in experimental group these symptom were turned to mild condition.

• 한국의류학회지
• /
• 제16권1호
• /
• pp.33-52
• /
• 1992

In order to get the basic information about the designing and manufacturing of special clothing which is suitable diplegia individuals, taking anthropometic measurements, the di-plegia's body dimension, standard dimension, their correlation, maximum, minimum, the relative deviation graph of Mollison and the body index were obtained. The writer examined their body development and abnormal somatotype and compared the difference with the normal somatotype. The results are as follows: 1 One characteristic of the body of diplegia individuals is that their lower parts are dis- proportionately developed, compared to their upper parts. 2. Diplegia individuals have smaller measurements than those of the normal; height, breadth, and circumference measurments of lower parts. And diplegia individuals have larger measur- ments; breadth and circumference measurements of upper parts, most of the length measur- ements. 3. In body index, diplegia individuals have lager measurments than those of the normals; most of index for stature and chest circumference and waist circumference index. And diplegia individuals have smaller measurments; most of the lower parts. 4. Change of somatotype according to age is unbalanced different from the normal's. 5. For the proportion of diplegia individuals, therefore a different pattern design of ciothing is required based on their special somatotype.