• Childhood Kidney Diseases
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• v.15 no.1
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• pp.86-89
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• 2011

Imperforate hymen is, with an incidence of 0.1%, a rare female anomaly, which can appear with symptoms such as lower abdominal pain, primary amenorrhea, dysuria, anuria, caused by retention of menstrual blood after the onset of menstruation. Generally urinary retention is caused by psychological conditions, drug effect, infection or congenital anomaly causing acute urinary obstruction. We experienced a patient with symptoms of acute urinary retention, suggesting acute urinary obstruction. The cause for the retention turned out to be an imperforated hymen, which should therefore be mentioned in the literature as a possible cause in cases suspected of urinary retention.

• Journal of Yeungnam Medical Science
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• v.23 no.2
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• pp.152-161
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• 2006

Carcinoma of the gallbladder is an uncommon but highly malignant tumor with a poor five year survival rate. Early detection is very important for successful treatment because this tumor is very hard to cure in cases where it has advanced beyond the reach of surgical treatment. The purpose of this review was to evaluate risk factors for carcinoma of the gallbladder and determine the best management approach.. Solitary polys, more than one cm are considered to be predisposing factors for gallbladder carcinoma when they are found to be echopenic, sessile, and with a high cell density. Anomalous union of the pacreato-biliary duct(AUPBD) without a choledochal cyst is also considered to increase risk for gallbladder carcinoma. A polyps size of more than one cm and an AUPBD are indications for prophylactic cholecystectomy. The presence of gallstones is a well-established risk factor for the development of gallbladder carcinoma; risk appears to correlate with the stone size and the duration of chronic cholecystitis. Metaplastic changes of the gallbladder epithelium present with chronic cholecystitis and may indicate a premalignant lesion. Abnormal forms of cholecystitis such as xanthogranulomatous or a porcelain gallbladder also have malignant potential; cholecystoenteric fistula as well as bacterial infection of the gallbladder(typhoid, helicobacter species) also has malignant potential. In this review, the risk factors associated with carcinoma of the gallbladder are summarized with special attention to gallstones, polyps, AUPBD, and chronic inflammation.

• The Journal of the Korea Contents Association
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• v.9 no.3
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• pp.91-98
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• 2009

The structure of modern society are complex, fast, overflowing of individualism and losing of independence through the standardization of human relationship. The frequency increased that children watch television and play computer game alone through this structure. Also, the mental disorder like as autism tend to be increase for childhood because, parents overprotect, unmethodical bringing up children, emotional disturbance and effect of genetic. Therefore, research and case study of art therapy publish that illustrates a tendency of developing and growing. On the base of this situation art therapy realize more important than before and gain power. Therefore, this research consider that clay therapy effect for autistic just children and investigate function of catharsis through the case study. Also, make study that social rappot and function of catharsis develop for children who has autism. The suggest effect of synergy which come from clay therapy(education of ceramic) and development of education program.

• Proceedings of the KOR-BRONCHOESO Conference
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• 1983.05a
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• pp.19.1-19
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• 1983

The dentigerous cyst involving maxilla is rare disease in Otolaryngologic field. A case of 22-year-old male patient involving dentigerous cyst of the maxilla with chronic inflammatory signs has been presented. The occurrence of odontogenic epithelium in the wall of dentigerous cyst is a well known entity. This epithelium usually remains inactive and does not have clinical significance, but these small inactive islands of epithelium may be stimulated, resulting in chronic inflammation, ameloblastoma and squamous cell carcinoma. Therefore correct diagnosis and proper treatment are very important. The authors have recently experienced a case of dentigerous cyst causing a mild disfigulation of face. The cyst was surgically enucleated through sublabial approach.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.4
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• pp.1495-1501
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• 2011

Fatigue life and vibration can be analyzed at automotive propeller shaft during driving in this study. The york part is shown with the maximum equivalent stress and displacement of $1.3177{\times}10^3$Pa and $3.6148{\times}10^{-4}$m. The possible life in use in case of 'SAE bracket' is the shortest among the fatigue loading lives of 'SAE bracket', 'SAE transmission' and Sample history. There are the most frequency as 80% in case of 'SAE bracket and the least frequency as 5% in case of Sample history'. Maximum amplitude displacement is 0.00261m at 58 Hz at forced vibration. As the result of this study is applied by the propeller shaf, the prevention on fatigue damage and the durability are predicted.

• Journal of Chest Surgery
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• v.39 no.3 s.260
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• pp.244-247
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• 2006

Granular cell tumors (GCT) are uncommon benign neoplasms. Their location is mostly in the the skin, tongue, and breast; appearance in other parts of the body is rare, but it has been reported. They have also been reported to occur synchronously in multiple organs and metachronously in a single organ. The incidence of GCTs in the tracheobronchial tree is unknown and pulmonary GCTs are uncommon, with approximately 100 reported cases in the literature. We present the case of a 33-year-old man with a granular cell tumor of the left main bronchus. The tumor was found at bronchoscopy performed to exclude suspected endobronchial mass with symptoms of pneumonia. Biopsies revealed the histological pattern of a benign granular cell tumor. He underwent resection of the left main bronchus followed by end to end anastomosis of left main bronchus. He has not had any recurrence of the tumor during the 1 year follow-up.

• Proceedings of the Korea Water Resources Association Conference
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• 2016.05a
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• pp.186-186
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• 2016

산업안전보건법에 따르면 결함수 분석기법(Fault Tree Analysis, FTA)은 주로, 설계 또는 운전단계에 있는 공정 위험성 평가 시 사고의 발생빈도와 예상사고 시나리오를 추정하는데 적용되어왔다. 따라서 일반적인 결함수 분석에서 정상 사상은 시스템 자체의 사용불능을 야기하는 가장 큰 원인을 의미한다. 그러나 상수도의 유지관리를 위해 FTA를 적용한 경우 정상 사상은 일반적인 FTA에서의 정상 사상과는 다르게 정의되어야 한다. 즉, 용수공급의 경우 관망 전체에 영향을 미치는 정상 사상이란 수원지의 오염이나, 수원지에서 직접적으로 나오는 관로에 문제가 생겼다거나 하는 사건을 의미하므로, 이러한 방식의 정상 사건 정의는 관망의 관로 및 절점에서 발생되는 문제를 분석하기 어렵게 만든다. 따라서 본 연구에서는 관망의 특정 지점에 용수공급이 원활하게 되지 않는 경우를 FTA의 정상사상으로 정의하였다. 또한, 개개의 관로 노후도 평가 점수와 FTA를 이용하여 관망의 특정 절점에 용수를 공급하기 위한 관로들의 노후도 평가 평균 점수를 산출하였다. 개발한 프로그램에서는 평균 노후도 평가 점수를 산출하기 위해서, 특정 절점 값을 입력 받고 각 파이프와 그로 인해 생기는 고립구간(세그먼트 + 비의도적 고립구간) 에 포함되는 절점들의 관계를 나타낸 자료를 이용하여 파이프에 문제가 생길 시 단수되는 절점을 역으로 검색해서 각 파이프의 노후도 평가 점수를 산술평균 하였다. 본 연구에서는 특정지점에 용수 공급이 원활하지 못 한 정상사상에 대하여 관로의 수리 또는 교체를 해야 하는 구간을 찾아 노후도 평가 점수를 산정하는 것이 목표이다. 이를 위해 특정 절점에 용수를 공급하기 위하여 지나가는 관로들에 대해서 평균 점수를 구함으로써, 절점에 용수가 원활히 공급 될 가능성을 산정하여 FTA와 관로 노후도 평가 점수를 이용하고 특정 절점에 용수를 공급하기 위하여 지나가는 관로들에 대해서 평균 점수를 산정하였다. 절점에서 용수를 공급하는 중요도에 따라 절점으로 이어지는 관로의 평균 노후도를 일정 점수 이하로 유지시키는 방법을 이용함으로써 관로의 유지관리 필요성에 대해 지표로써 사용할 수 있다.

• Journal of Practical Agriculture & Fisheries Research
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• v.23 no.1
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• pp.27-30
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• 2021

Vaccination for swine food and mouth disease (FMD) has been using needle injection. Needle injection can cause lesions of injection site on muscle and lymph node, leading to consumer's complain and Korea Pork's image deterioration. Needle-free injections have been developing to solve this issues. The current study performed to evaluate the frequency of muscle and lymph node lesions after vaccination using needle-free injection. Needle-free injection significantly decreased the lesions on the injection site compared with the needle injection(36 vs. 16%, p < 0.05). Based on the result, needle-free injection can enhance the quality of pork and decrease consumer's complains. Further study should perform to validate potential of needle-free injection by investigating antibody formation rate, work efficiency, and economic cost.

• Journal of the korean academy of Pediatric Dentistry
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• v.35 no.2
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• pp.313-318
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• 2008

Dens invaginatus is a rare malformation resulting from invagination of the enamel before calcification has occurred. It is mostly found in permanent maxillary lateral incisors and mandibular teeth are rarely affected by this anomaly. The malformation is estimated to affect between 0.04 % and 10 % of people and has been associated with other abnormalities such as taurodontism, microdontia, gemination and dentinogenesis imperfecta. Dens invaginatus is classified in three types with respect to the depth of invaginatus and has a broad spectrum of morphologic variations. Invagination frequently allows the entry of irritants and microorganism, which usually lead to caries, pulp infection and pulp necrosis. Root canal treatment on such invaginatus tooth may present severe problems because of its complex anatomy of the tooth. Therefore, the early diagnosis of such malformation is crucial and preventive approach is strongly recommended.

• Proceedings of the KOR-BRONCHOESO Conference
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• 1987.05a
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• pp.15.2-16
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• 1987

사성이란 후두의 발생기능에 장애가 있을 때 생기는 후두질환의 가장 대표적인 주증상으로 인간 문화의 발달에 병행되어서 대화에 의한 전달수단이 중요시되고 또한 암에 대한 인식이 높아져 사성을 호소하는 환자들이 많아지는 경향이 있다. 이에 저자는 1980년 1월부터 1984년 12월까지 이화여자대학교 의과대학 부속병원 이비인후과 외래에 내원한 신외래환자 총 24,949명 중 사성을 주소로 한 800명의 환자에 대하여 병력지를 기준하여 각 질환을 통계적으로 분석 검토하여 다음과 같은 성적을 얻었다. 1) 이비인후과 외래환자 총 24,949명중 사성환자는 800명으로 약 3.2%이었다. 2) 외래사성환자 800명중 남자 336명, 여자 464명으로 남녀비는 약 1 : 1.4이었다. 3) 질환별로는 급성 후두염 248예(31.0%), 만성 후두염 186예(23.3%), 성대결절 160예(20.0%), 성대폴립 90예(11.3%), 성대마비 56예(7.0%), 후두 유두종 12예(1.5%), 후두암 9예(1.1%)이었다. 4) 연령별로는 30대가 213예(26.6%), 20대가 190예(23.8%), 40대가 179예(22.4%)의 순이었다. 5) 각 질환별 최다연령은 급성 후두염 30대 73예(29.4%), 만성 후두염 30대 53예(28.5%), 성대결절 30대 52예(32.5%), 성대폴립 40대 26예(28.9%), 성대마비 40대 14예(25.0%), 후두암 50대 6예(66.7%)이었다. 6) 발병부터 초진까지의 기간은 10일 이내가 153예(19.1%)로 제일 많았고 1개월∼3개월 138예(17.3%), 11일∼l개월 119예(14.9%)의 순이었다. 7) 각 질환에 따른 발병부터 초진까지의 기간의 최다분포는 급성 후두염은 10일 이내가 117예(47.2%), 만성 후두염은 3개월∼6개월이 44예(23.7%), 성대결절은 3개월∼6개월이 40예(25.0%), 성대폴립은 6개월∼1년이 20예(22.2%), 성대마비는 10일이내가 12예(21.4%)이었다. 8) 질환별 동반증상 분포는 사성만을 호소한 경우가 394예(41.4%)로 가장 많았고 동반증상으로는 인두통, 이물감, 객담, 기침, 연하장애, 호흡곤란의 순이었다. 9) 저자의 연도별 사성환자의 평균발생빈도(3.2%)를 문(1981)의 1975년 1월부터 1979년 12월(만 5년간)까지의 평균발생빈도(2.9%)와 비교할 때 증가하였다.