• Journal of Mechanical Science and Technology
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• v.20 no.7
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• pp.972-980
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• 2006

In general, to send out natural gas via a pipeline network across the nation in LNG terminal, high-pressure cryogenic pump supply highly compressed LNG to high-pressure vaporization facilities. The Number of cryogenic pumps determined the send-out amount in LNG receiving terminal. So it is main equipment at LNG production process and should be maintained on best conditions. In this paper, to find out the cause of high vibration at cryogenic pumps-motor system in LNG terminal, vibration spectrum analysis and motor current signature analysis have been performed together. Through the analysis, motor rotor bar problems are estimated by the vibration analysis and confirmed by the current analysis. So, it is demonstrated through the case study in this paper, how performing vibration analysis and current signature analysis together can reliable diagnosis rotor bar problems in pump-motor system.

• Journal of Preventive Medicine and Public Health
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• v.7 no.2
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• pp.285-292
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• 1974

It is well known fact that many tuberculosis patients have often experienced interuption of treatment while their treatment. Because most of cases were inproved subjective symptome by adequate treatment for 3-6 months and patients misunderstood to be heal completely by their own dicision, It become the cause of emergency of drug resistance and chronic incurable diseases. The author intended to clarify the duration of treatment and its outcome by some characteristics of tuberculosis patients. The results obtained were as follows: 1. The rate of treatment for tuberculosis patients by each duration with 1-6, 7-12, 13-13, 19-24 and 25 or more months were 16, 23, 20, 14 and 25 percents respectively. The duration of treatment increased in patients with advancing age, better educated and registered at health center between 7-12 months after diagnosis for tuberculosis. 2. The rate of complete treatment, defaulters, death and migration were 43, 13, 8, and 10 percents respectively. The rate of complete treatment were high in older, better educated and registered at health center between 7-12 months after diagnosis. The rate of defaulters were high in younger, no educated and registered within 1 month after diagnosis. The rate of death was high in older and migration was high in younger.

• The Korean Journal of Nuclear Medicine
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• v.38 no.3
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• pp.209-217
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• 2004

Evaluation of dementia in patients with early symptoms of cognitive decline is clinically challenging, but the need for early, accurate diagnosis has become more crucial, since several medication for the treatment of mild to moderate Alzheimer' disease are available. Many neurodegenerative diseases produce significant brain function alteration even when structural imaging (CT or MRI) reveal no specific abnormalities. The role of PET and SPECT brain imaging in the initial assessment and differential diagnosis of dementia is beginning to evolve vapidly and growing evidence indicates that appropriate incorporation of PET into the clinical work up can improve diagnostic and prognostic accuracy with respect to Alzheimer's disease, the most common cause of dementia in the geriatric population. in the fast few years, studios comparing neuropathologic examination with PET have established reliable and consistent accuracy for diagnostic evaluations using PET - accuracies substantially exceeding those of comparable studies of diagnostic value of SPECT or of both modalities assessed side by side, or of clinical evaluations done without nuclear imaging. This review deals the role of functional brain imaging techniques in the evaluation of dementias and the role of nuclear neuroimaging in the early detection and diagnosis of Alzheimer's disease.

• Journal of Chest Surgery
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• v.27 no.4
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• pp.331-334
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• 1994

Pneumatic rupture is a rare cause of esophageal injury, as evidenced by only 19 cases reported in the literature. We experienced one case of esophageal rupture due to bursting of a truck inner tube. The patient, who was a 45-year old male, had severe chest pain, respiratory distress, flushing in the face and neck, and subcutaneous emphysema after tire explosion. Three days after the incident, a diagnosis of rupture of the thoracic esophagus was established by esophagogram using water soluble contrast media, and then emergency operation was done. The operation involved mediastinal and thoracic drainage and resection of the esophagus combined with cervical esophagostomy and feeding gastrostomy. On the 105th day after the operation, cervical esophagogastrostomy via substernal route was performed. The patient was successfully treated with the staged operations. As in the other reported cases, the injury was located in the lower one third of the esophagus. Four main characteristics of the clinical signs of pneumatic rupture are 1] wounds or burns to the face or mouth, 2] chest pain or epigastric pain, 3] subcutaneous emphysema, and 4] respiratory distress. We emphasize that the high index of suspicion of esophageal rupture is very important in diagnosis and that diagnosis should be based on the same findings common to other forms of esophageal injury.

• Earthquakes and Structures
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• v.18 no.1
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• pp.97-111
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• 2020

Cylindrical steel tanks are important components of industrial facilities. Their safety becomes a crucial issue since any failure may cause catastrophic consequences. The aim of the paper is to show the results of comprehensive FEM numerical investigation focused on the response of cylindrical steel tanks under mining tremors and moderate earthquakes. The effects of different levels of liquid filling, the influence of non-uniform seismic excitation as well as the aspects of diagnosis of structural damage have been investigated. The results of the modal analysis indicate that the level of liquid filling is really essential in the structural analysis leading to considerable changes in the shapes of vibration modes with a substantial reduction in the natural frequencies when the level of liquid increases. The results of seismic and paraseismic analysis indicate that the filling the tank with liquid leads to the substantial increase in the structural response underground motions. It has also been observed that the peak structural response values under mining tremors and moderate earthquakes can be comparable to each other. Moreover, the consideration of spatial effects related to seismic wave propagation leads to a considerable decrease in the structural response under non-uniform seismic excitation. Finally, the analysis of damage diagnosis in steel tanks shows that different types of damage may induce changes in the free vibration modes and values of natural frequencies.

• Journal of Yeungnam Medical Science
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• v.31 no.1
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• pp.1-8
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• 2014

Dizziness can be classified mainly into 4 types: vertigo, disequilibrium, presyncope, and lightheadedness. Among these types, vertigo is a sensation of movement or motion due to various causes. The main causes of peripheral vertigo are benign paroxysmal positional vertigo (BPPV), acute vestibular neuritis (AVN), and Meniere's disease. BPPV is one of the most common causes of peripheral vertigo. It is characterized by brief episodes of mild to intense vertigo, which are triggered by specific changes in the position of the head. BPPV is diagnosed from the characteristic symptoms and by observing the nystagmus such as in the Dix-Hallpike test. BPPV is treated with several canalith repositioning procedures. AVN is the second most common cause of peripheral vertigo. Its key symptom is the acute onset of sustained rotatory vertigo without hearing loss. It is treated with symptomatic therapy with antihistamines, anticholinergic agents, anti-dopaminergic agents, and gamma-aminobutyric acid-enhancing agents that are used for symptoms of acute vertigo. Meniere's disease is characterized by episodic vertigo, fluctuating hearing loss, and tinnitus. It is traditionally relieved with life-style modification, a low-salt diet, and prescription of diuretics. However, diagnosis and treatment of the peripheral vertigo can be difficult without knowledge of BPPV, AVN, and Meniere's disease. This article provides information on the differential diagnosis of peripheral vertigo in BPPV, AVN, and Meniere's disease.

• Asian Pacific Journal of Cancer Prevention
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• v.14 no.5
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• pp.3281-3288
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• 2013

Background: Breast cancer is the leading cause of cancer-related deaths in women. Despite being associated with high morbidity and mortality, breast cancer is a disease that can be diagnosed and treated early. Materials and Methods: In this cross-sectional study of 321 women, data were collected by Questionnaire, Breast Cancer Risk Assessment Form and Champion's Health Belief Model Scale. Mann-Whitney U, Kruskal-Wallis, Chisquared tests and logistic regression were used in the statistical analysis. Results: It was found that only 2.2% of women have high and very high risk levels of breast cancer risk. There is a positive correlation between early diagnosis techniques and Health Belief Model Sub-Dimension scores which are sensibility, health motivation, BSE (Breast self-examination) self-efficient perception and negative correlation between mammography barrier score and BSE barrier score (p 0.05). When factors for not having BSE were examined, it was determined that the women who do not have information about breast cancer and the women who smoke have a higher risk of not having BSE. Conclusions: It is important to determine health beliefs and breast cancer risk levels of women to increase the frequency of early diagnosis. Women's health beliefs are thought to be a good guide for planning health education programs for nurses working in this area.

• The Transactions of the Korean Institute of Electrical Engineers C
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• v.55 no.6
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• pp.308-312
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• 2006

Partial Discharge (PD) phenomena occurred by different nature of insulating defects has been regarded as a random process by which Phase Resolved Partial Discharge Analysis(PRPDA) has been proposed and then commercially accepted for the diagnosis of the power apparatus since more than three decades. Moreover, for the same purpose, a novel approach based on the Chaotic Analysis(CAPD) has been proposed since 2000, in which Partial Discharge(PD) phenomena is suggested to be considered as a deterministic dynamical process. In this work, for the diagnosis of Gas Insulated Transformer(GITr), four different types of specimen were fabricated as a model of the possible defects that might possibly cause its sudden failures such as turn to turn insulation, inter coil insulation, free moving particle and protrusion. For this purpose, these defects are introduced into the Gas Insulated Transformer(GITr) mock-up and experimental investigations have been carried out in order to analyze the related Partial Discharge(PD) patterns by means of both Phase Resolved Partial Discharge Analysis(PRPDA) and Chaotic Analysis(CAPD) respectively and then their comparisons are made systematically.

• Korean Journal of Veterinary Research
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• v.7 no.2
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• pp.56-59
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• 1967

Number of dairy cow patients diagnosed and treated at Hyup Dong Large Animal Clinic during the year, October 1, 1966, through September 30, 1967, were amounted to 1,119 cases and the result of analysis of disease incidence during one year period were as follow: 1. In the etiologic diagnostic categories, diseases cause by infection with lower organism were most productive and 43.3% of all diagnosis involved in this category. 2. In the topographic diagnostic categories, 37.3% of all diagnosis involved the urogenital system and were observed most productive. 3. As a result of each topographic diagnostic categories were subdivided into disease entities, 21.4% of all diagnosis involved the mastitis and this were observed most productive in the miscellaneous disease entities. Next productive disease were indigestion (11.9%), endometritis(11.5%), miscellaneousl ovarian disease(11.1%) and retained placenta(81.1%) chronologicaly.

• Journal of Dental Anesthesia and Pain Medicine
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• v.16 no.1
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• pp.1-8
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• 2016

Most dental pain is caused by an organic problem such as dental caries, periodontitis, pulpitis, or trauma. Diagnosis and treatment of these symptoms are relatively straightforward. However, patients often also complain of abnormal dental pain that has a non-dental origin, whose diagnosis is challenging. Such abnormal dental pain can be categorized on the basis of its cause as referred pain, neuromodulatory pain, and neuropathic pain. When it is difficult to diagnose a patient's dental pain, these potential alternate causes should be considered. In this clinical review, we have presented a case of referred pain from the digastric muscle (Patient 1), of pulpectomized (Patient 2), and of pulpectomized pain (Patient 3) to illustrate referred, neuromodulatory, and neuropathic pain, respectively. The Patient 1 was advised muscle stretching and gentle massage of the trigger points, as well as pain relief using a nonsteroidal anti-inflammatory and the tricyclic antidepressant amitriptyline. The pain in Patient 2 was relieved completely by the tricyclic antidepressant amitriptyline. In Patient 3, the pain was controlled using either a continuous drip infusion of adenosine triphosphate or intravenous Mg2+ and lidocaine administered every 2 weeks. In each case of abnormal dental pain, the patient's diagnostic chart was used (Fig.2 and 3). Pain was satisfactorily relieved in all cases.