• Korean Journal of Plant Taxonomy
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• v.44 no.4
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• pp.242-246
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• 2014

The newly recorded species, Diplazium mettenianum (Miq.) C. Chr. var. mettenianum (Athyriaceae) was collected from a forest in Min-oreum, Jeju-do. D. mettenianum var. mettenianum (vernacular name: 'Kit-ju-reum-go-sa-ri') is distinguished from other Korean congeners of the genus Diplazium by having pinnae shallowly or halfway lobed, lower pinnae stalked, lanceolate, pinna segments serrate margin and obtuse apex. A new Korean name, 'Kit-ju-reum-go-sa-ri', was given based on the shape of pinna halfway lobed. Descriptions and illustrations of this taxon and its photograph in the habitat are provided along with a key to the species of Diplazium from Korea.

• Journal of radiological science and technology
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• v.8 no.2
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• pp.11-14
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• 1985

The author came to analize and get the following problems after researched radiographic quality in order to find out the necessary factors to improve in radiographs of frontal projection of the chest selected at random of the adult patients (1545 male, 1520 female) who had been examined in 4 departments of radiology of the general hospitals in Seoul and Kyungki area. 1. Problems of x-ray film or of radiographic cassette appeared in 2.97% radiographs on account of selection of the film size (except costophrenic sinus) (1.79%), poor screen-film contact (0.85%), light leakage of cassette (0,33%). 2. Problems of patients' positioning or breathing appeared in 16.57% radiographs of all because of overlapping of lung apex and clavicle (6.98%), overlapping of scapula and lung field (5.87%), asymmetrical projection of clavicles (1.76%), errors in positioning and breathing of the patient (1.96%). 3. Problems of x-ray exposure factors or film processing appeared in 22.25% radiographs because of over-density (2.64%), under-density (3.95%), fog (0.59%), demonstration density under clavicles or lung marking unsharply (3.82%), not clear of lung marking from breast region (0.94%), not clear the lung marking from the part overlapped of heart and lungs (3.92%), not clear the lung marking from the part overlapped of liver and lung (6.49%).

• Korean Journal of Veterinary Research
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• v.44 no.1
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• pp.125-129
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• 2004

A 2-year-old, female, American cocker spaniel dog presented for a 1-year history of severe ascites, exercise intolerance, tachypnea. At that time, she was in an emergency state. First, the dog was stabilized with oxygen therapy. A diagnosis of cardiac problem was made from history, auscultation, radiograph, ECG, and echocardiography. Jugular pulsation was palpated and a harsh, systolic murmur of tricuspid regurgitation was prominent at the right cardiac apex. Tricuspid valve dysplasia (TVD) was confirmed with echocardiography, accompanying enormous myocardial hypertrophy. The clinical signs had been improved for 8 months with careful therapy and periodic abdominocentesis, and ascites was well controlled. The situation, however, became worse quickly in a week because the client did not follow our management schedule. Finally, she died due to dyspnea and shock. After the spontaneous death, necropsy and histopathological examination were performed and when we opened the thorax, a significantly large heart was observed. On histopathological findings, grossly myocardium appeared pale initially, then progressed to yellow and white. Microscopically, there was an extensive hemorrhage along with loss of myocardial striations. Interstitial fibrosis and various degenerative alterations in myocytes were also present.

• Journal of Chest Surgery
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• v.34 no.9
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• pp.729-732
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• 2001

A 49-year-old male patient was admitted with chief complaint of hemoptysis. Preoperative chest PA and CT scan revealed air-filled large cavitary lesion at the right upper lobe with typical meniscus sign. Serum anti-fungus antibody for Aspergillus was positive and he was diagnosed as aspergilloma. We planned RULobectomy but it was impossible due to severe pleural adhesion in apex and mediastinal pleura. Therefore, we performed a cavernostomy and serratus anterior muscle flap transposition in one stage. The patient recovered without complication and was followed up for 8 months without recurrence of hemoptysis.

• Journal of Chest Surgery
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• v.25 no.11
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• pp.1286-1291
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• 1992

We have experienced 456 cases of spontaneous pneumothorax from January, 1981 to December, 1991 at the department of Thoracic and Cardiovascular Surgery, Chonbuk National University Hospital. Of these, 102 cases were recurrent pneumothorax. These 102 cases were based on the retrospective clinical analysis, and the results were as follows: The ratio of male to female was 6.2: 1 in male predominance and the old aged patients, over 50 years old, occupied 46.8%a of all patients. Primary spontaneous pneumothorax was 43 cases[42.6%] and secondary spontaneous pneumothorax was 59 cases. The underlying pathology in secondary spontaneous pneumothorax was tuberculosis: 31 cases[30.4%], emphysema and chronic obstructive pulmonary disease: 27 cases[26.1%], Most frequent operative and pathologic findings in the primary and the secondary spontaneous pneumothorax was bullae and blebs at apex. The employed managements were only closed thoracostomy in 41 cases, open thoracot-omy in 61 cases. The operative procedures at thoracotomy were bullectomy or bullae ligation in 37 cases, bullae resection with wedge resection in 8 cases, bullae resection with segmentectomy in 6 cases, bullae resection with decortication in 3 cases, lobectomy in 5 cases, decortication in 2 cases. Complications were subcutaneous emphysema[5 cases], wound infection[1 case], and temporary pulmonary insufficiency[1 cases]

• The Bulletin of The Korean Astronomical Society
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• v.35 no.1
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• pp.26.2-26.2
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• 2010

It has been a puzzle in solar physics how a low-lying magnetic structure such as a solar prominence surrounded by a strongly line-tied overlying field sometimes intrudes through the latter and goes into eruption. A numerical simulation study of the solar coronal plasma reveals that a ballooning instability can explain this type of eruptive process. We consider an idealized situation with two flux ropes merging. When magnetic field lines from different flux ropes reconnect, a new field line connecting farther footpoints is generated. Since the field line length abruptly increases, the field line expands outward. If the plasma beta is low, this expansion takes place more or less evenly over the whole field line. If, on the other hand, the plasma beta is high enough somewhere in this field line, the outward expansion is not even, but is localized as in a bulging balloon. This ballooning section of the magnetic field penetrates out of the overlying field, and eventually the originally underlying field and the overlying field come to interchange their apex positions. This process may explain how a field structure that has stably been confined by an overlying field can occasionally show a localized eruptive behavior.

• The Bulletin of The Korean Astronomical Society
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• v.35 no.2
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• pp.61.2-61.2
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• 2010

CQUEAN (Camera for Quasars in EArly uNiverse) is an optical CCD camera system which has its own auto-guiding system. Guiding system consists of a 1k*1k CCD camera, FLI PL1001E, a flat mirror to feed the image of an off-axis field to the camera and baffle. The whole system lies on a moving arm which rotates 90 degree effectively to enlarge the field of view. A motor, IMS MDRIVE 34, and a differential decelerator, APEX AD140-050, are used for the moving mechanism. Auto-guiding is controlled by Agdr program. We had a first light from Aug. 10 to Aug 17, 2010 at McDonald Observatory, USA. In this presentation, we describe about the auto-guiding system for CQUEAN and its performance on the 2.1m telescope.

• Journal of the Korean Institute of Telematics and Electronics
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• v.17 no.6
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• pp.28-32
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• 1980

A digital system has been designed for the detection of abnormal spikes appearing in the epileptic patient's electroencephalogram(EEG). The detection is based on the waveform characteristics of spikes, such as the large slope, the sharpness of the apex, and the time duration of the spike. After the patient's data are collected and processed suing a minicomputer and A/D converter, the computer algorithms recognize the spikes based on the parameters representing the above waveform characteristics.

• Journal of Radiation Protection and Research
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• v.9 no.2
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• pp.118-128
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• 1984

The analysis of radiological protection at Kori Nuclear Unit #1, which started commercial operation on April 29, 1978, has been carried out in three areas, namely, radiation exposure, radioactive waste disposal and environmental management. The analysis results for radiation exposure and radioactive effluent releases appear to increase gradually with plant operating years. On the other hand, the apex of radiation exposure and radioactive effluent releases was in 1983 and 1982 respectively and then decreased or stabilized. Also, the operation environmental radioactivity seems to be no higher than preoperation environmental radioactivity.

• ALGAE
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• v.26 no.4
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• pp.289-297
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• 2011

Ceramium riosmenae sp. nov. is described from Baja California Sur, Mexico based on morphological and molecular data. The new species is characterized by erect thalli only, penetrating rhizoids on Gracilaria, 7-8 periaxial cells, five cortical initials per periaxial cell, complete cortication throughout, an average of 11-12 segments between branching points, rare adventitious branchlets, and cruciate tetrasporangia. Although C. riosmenae sp. nov. is similar to C. interruptum, C. sinicola, and C. codicola reported from Baja California Sur, Mexico in size and habit, it differs from these species in the number of cortical initials, habit, degree of cortication, host, and the shape of rhizoidal tips. C. riosmenae is separated from C. interruptum with interrupted cortication and four cortical initials from C. sinicola with spins near the apex and incomplete cortication near the base and from C. codicola with bulbous rhizoids on Codium. Our rbcL sequences reveal sufficient sequence divergence (2.4-3.9%) between C. riosmenae and C. interruptum, C. sinicola, and C. codicola to warrant species recognition and to separate C. riosmenae from these species on a phylogenetic tree.