• 식물병연구
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• 제20권4호
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• pp.289-294
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• 2014

국내 미곡종합처리장(RPC)에서 벼와 이의 가공산물인 왕겨, 현미, 청치미, 쇄미, 색채미, 백미시료를 2010-2013년 동안 수집하고 미곡에 발생하는 곰팡이와 곰팡이독소 오염을 조사하였다. 전체 곰팡이와 Fusarium 속 곰팡이의 발생은 모든 시료 중 벼에서 가장 높았고, 왕겨가 다음이었으며 도정과정을 따라 감소하였다. 현미, 청치미, 색채미의 발생빈도는 서로 유사하였으며 백미가 가장 낮았다. Fusarium 속 곰팡이 중에서 붉은곰팡이 종복합체의 비율은 2012년에 87%로 가장 높았고, 2011년과 2013년에는 30%대에 머물렀다. Aspergillus 속과 Penicillium 속의 경우 발생빈도는 낮았으나 특정 RPC의 미곡시료에 높은 빈도로 발생하는 유형을 보였고 Alternaria, Nigrospora, Epicoccum 속 곰팡이의 발생유형은 전체 곰팡이의 것과 유사하였다. 미곡 시료의 곰팡이독소 오염여부를 조사하기 위해 2010-2012년 시료를 대상으로 데옥시니발레놀, 니발레놀, 제랄레논과 기타 트라이코쎄신을 분석한 결과, 가공산물 중 색채미의 오염빈도, 검출량, 독소 중복오염비율이 가장 높았고 다음은 청치미였다.

• 한국우주과학회:학술대회논문집(한국우주과학회보)
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• 한국우주과학회 2009년도 한국우주과학회보 제18권2호
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• pp.38.1-38.1
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• 2009

In this paper we present the first results of summer-time F region irregularities during low solar condition observed using the Gadanki MST radar. Echoes were observed on all 20 nights of radar observations and were mostly confined to the post-midnight hours. Echo morphology is very different from the equinoxial post-sunset plume-like features reported earlier from Gadanki. Echo SNRs are lower by 25 dB than their equinoxial post-sunset counterpart, and are quite comparable to the equinoxial irregularities in the post-midnight hours, which are essentially the decaying post-sunset irregularities. The Doppler velocities, which lie in the range of $\pm$ 100 m s-1, show upward/northward motion of the irregularities during the initial phase in contrast to the observed predominant downward/southward velocities associated with the decaying equinoxial post-midnight F region irregularities. Spectral widths of the summer echoes, which are well below 50 m s-1 and are very similar to those of the decaying equinoxial irregularities, represent the presence of weak plasma turbulence. Simultaneous observations made using a collocated ionosonde show no ionogram trace during 2200-0530 LT except for a few occasions. Weak frequency type spread F observed during midnight hours occurred without prior occurrence of range spread F. Concurrent ionosonde observations made from magnetic equatorial location Trivandrum also show very similar result and thus no height rise of the F layer during the midnight hours could be monitored. The preliminary analysis suggests that the post-midnight irregularities reported here are mostly freshly generated ones. The observations are discussed in the light of other observational results reported earlier and the current under standing on the post-midnight occurrence F region irregularities in summer.

• 대한두경부종양학회지
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• 제36권2호
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• pp.17-20
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• 2020

Background: Compared to the frequency of occurrence of pre-auricular skin tag, cervical chondrocutaneous branchial remnants is one of congenital, benign neck masses that is very rare all over the world. Most of these rare anomalies are reported in case reports and especially, rare cases of unilateral cervical chondrocutaneous branchial remnants have been reported in Korean. Materials & Methods: A 9-year-old male patient visited the hospital on September 2017 for a rod-shaped mass. As a simultaneous diagnosis and treatment method, complete surgical excision was executed. Results: Excised mass was 0.5cm in diameter, 1.2cm in. Histologically, a hyaline and elastic cartilage was found in the core. As a family history, the same remnant was found in the right Anterior neck area of his mother. Conclusion: In this case, it is possible to diagnose and treat simply at the same time and even an optimal aesthetic result can be obtained.

• Journal of Oral Medicine and Pain
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• 제45권3호
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• pp.71-78
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• 2020

While oral melanotic macule is regarded as the most frequent oral pigmented lesion without any harmful symptom, oral melanoma is a very rare and life-threatening disease among oral pigmented lesions. Oral melanotic macule has previously been described as benign, with no malignant potential. However, a few case reports have raised the question of malignant potential of oral melanotic macule. In this case report, we present a case of coexistence of oral melanotic macule and oral melanoma. A 66-year-old man with a chief complaint of black pigmentation on gingiva showed the lesion spread out on the right palatal gingiva, the right maxillary buccal gingiva and the right buccal mucosa, appearing to merge with one another. Biopsies were performed on the right palatal gingiva and the right buccal mucosa. While the lesion on the right palatal gingiva was diagnosed as an oral melanotic macule, the other lesion on the right buccal mucosa was diagnosed as an oral melanoma. The present case implied the possibility of malignant potential of oral melanotic macule. Therefore, oral melanotic macule needs careful periodic observation for early detection and prompt treatment of the transformed oral melanoma.

• 대한두경부종양학회지
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• 제11권2호
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• pp.167-172
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• 1995

Pharyngocutaneous fistula(PCF) is one of the complications following total laryngectomy in laryngeal and hypopharyngeal cancer. Fistula lead to delayed wound healing, more serious complications such as carotid blow-out, prolonged hospitalization, significant patient morbidity and occasional mortality. Identification of patients at high risk for fistula formation, appropriate preventive measures, and appropriate management are the head and neck surgeon's responsibility. So we analyzed the clinical data of pharyngocutaneous fistula which was developed after total laryngectomy. Following results were obtained: 1) Occurrence of PCF increases with salvage surgery compared to curative surgery. 2) Early detection and effective management of PCF are the key factors to decreasing the hospitalization period. 3) Constructing a pharyngostoma seems to be an ideal method of preventing dangerous complications and ultimately closing the fistula. 4) Simultaneous reconstruction is necessary in the high risk group.

• Childhood Kidney Diseases
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• 제21권2호
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• pp.89-93
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• 2017

Purpose: Virus-associated rhabdomyolysis is very rare. We report 15 patients with rhabdomyolysis caused by various viruses. Methods: Fifteen patients who were diagnosed with rhabdomyolysis and a viral infection were included in this study. Clinical, laboratory, and radiologic findings were evaluated through retrospective chart reviews. Results: Chief complaints were severe bilateral lower leg pain and leg weakness. The median age was 5.7 years. The male:female ratio was 2:5. The viral infections were caused by influenza virus B, parainfluenza virus, and rhinovirus. One patient with influenza virus B had coinfection with coronavirus. Median initial laboratory values and ranges were as follows: serum creatinine, 0.4 (0.1-0.5) mg/dL; serum aspartate transaminase, 124 (48-1,098) IU/L; serum alanine transaminase, 30 (16- 1,455) IU/L; serum creatine kinase, 2,965 (672-16,594) IU; serum lactate dehydrogenase, 400 (269-7,394) IU/L; serum myoglobin, 644 (314-3,867) ng/mL; urine myoglobin, 3 (3-10,431) ng/mL. All patients recovered without complications. Conclusion: This is the first report of the simultaneous occurrence of rhabdomyolysis caused by various viruses. This is also the first report of rhinovirus-associated rhabdomyolysis.

• Advances in pediatric surgery
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• 제1권1호
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• pp.95-99
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• 1995

Neuroblastoma is the most common solid malignancy in childhood. However, a neuroblastoma presenting as bilateral and multifocal is very rare. A male newborn weighing 2.7 kg was born by normal vaginal delivery at 39 weeks' gestation to a 27-year-old mother who had a normal pregnancy. He was in good condition at birth but presented palpable masses in the both upper abdomen and both side of the neck. Ultrasound examination showed the lesions to be $3{\times}3cm$ sized calcified mass in right suprarenal area and $5{\times}3cm$ sized homogenous mass in left suprarenal area. The abdominal mass was also examined by computed tomography with similar findings. With the impression of bilateral neuroblastoma or metastatic spread, the laparotomy was performed on the 13th day of life. Frozen section of biopsy of the left neck mass was obtained, which showed neuroblastoma. Intraoperative findings revealed bilateral adrenal masses which were distinct and anatomically separate. Bilateral adrenalectomy was accomplished and the initial postoperative course was uneventful. The patient was discharged for hopeless and expired at age 45 days. We present bilateral adrenal neuroblastoma considered to be simultaneous occurrence rather than metastases from one site to another.

• 한국유체기계학회 논문집
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• 제9권3호
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• pp.29-35
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• 2006

There are high expectations of improving the performance of a centrifugal pump in the range of very low specific speed which has been developed recently for the use instead of a conventional positive displacement pump. However, even though elaborated studies has been done for the pump intensively, the pump performance has not increased so much. Also, it is difficult to find detailed information from published literatures for suction performance of the very low specific speed centrifugal pump. Therefore, this study is aimed to improve the pump performance more and to make clear suction performance of the very low specific speed centrifugal pump. Recircular flow stopper is installed on the pump casing wall at the region of impeller outlet to improve the pump performance and J-Groove is also installed at the inlet of the pump casing for the purpose of suppressing occurrence of cavitation as well as improving pump performance. The result suggests that the simultaneous improvement of pump performance and suction performance of the very low specific speed centrifugal pump is possible by adopting optimum configuration of the recirculation flow stopper and J-Groove.

• 한국임상수의학회지
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• 제29권3호
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• pp.263-267
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• 2012

4세령의 래브라도 리트리버견이 좌측상악의 종괴의 평가를 위해 내원하였다. 두개부 방사선학적 검사와 컴퓨터 단층촬영검사가 실시되었으며, 그 결과 좌측상악부의 골용해소견을 동반한 연부조직종괴가 확인되었다. 종괴의 적출과 소파술이 시행되었으며, 적출된 종괴는 조직병리학적 검사의뢰되었다. 조직병리학적 검사결과 섬유성 이형성이 동반된 유두종성 에나멜아세포종으로 진단되었다.

• Childhood Kidney Diseases
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• 제7권1호
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• pp.77-81
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• 2003

설사연관형 용혈성 요독 증후군은 수술적 치료가 필요한 외과적 합병증이 드물게 동반된다. 저자들은 급성 출혈성 장염으로 진단된 후 동시에 설사 연관형 용혈성 요독 증후군과 급성 충수염으로 진행한 1례를 경험하였기에 보고하는 바이다.