• Journal of Chest Surgery
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• 제25권1호
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• pp.96-104
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• 1992

The 242 patients were operated due to chronic empyema in Hanyang University Hospital From Jan, 1983 to Aug, 1991, we operated 17 patients by modified.Schede`s thoracoplasty with myoplasty and we concluded to next scentences. 1. The age of patients were varied from 28 to 65[Average 39.1] and male preponderance was seen[more than 3 times]. 2. The preoperative cause of disease were tuberculosis in 14 patients[3 patients were associated with aspergillosis, and 1 patient was associated vrith actinomycosis], lung abscess in 2 patients, and haemophilia in 1 patient. 3. The Preoperative duration of empyema were varied from 1 month to 30 years[Average 49.8 month], and the duration from pulmonary resection to thoracoplasty were 1 month to 13.5 years[Average 55 month] except 3 patients, who were operated pneunectomy with thoracoplasty at the same time. 4. The total number of thoracoplasty were 19, because in 2 patients, we operated 2 steps, and we failed in 6 cases, so the success rate was 68.5%. 5. In failure analysis of 6 cases, the cause were obliteration failure in 3 cases, inadequete drainage in 1 case, and in the other 1 case was mixed type. 6. From 1990 to 1991, there were no death associated with operation and there were 1 failure, so the success rate was greatly improved. 7. The bronchopleural fistula or spontaneous rupture of trachea were seen in 12 cases, and the success rate was high in absent cases.

• Journal of Information Technology Applications and Management
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• 제24권1호
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• pp.45-61
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• 2017

Business intelligence has been attracting much attention these days. Despite such popularity of BI systems, it is widely known that about a half of BI system projects have failed. To grasp why many BI projects end in failure and what factors would make BI projects less failure-prone, a number of BI studies were made to produce a variety of CSFs. However, there is a paucity of information on whether these CSFs are distinctive from those of typical information systems. By identifying how BI CSFs differ from CSFs of typical information systems, we would be able to explain why most BI projects are more likely to be failure. It is believed that a corrective measure about CSFs will lead to more success in future BI projects. In addition, though there have been a number of similar types of BI systems such as decision support systems and executive information systems in existence, there was no study to determine whether there is ever a discrimination between CSFs of BI systems and the similarly-titled systems. This study is to answer these questions using a literature review analysis. The findings of our study are expected to be helpful in a successful implementation of BI systems.

• Journal of Korean Neurosurgical Society
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• 제49권4호
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• pp.217-221
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• 2011

Objective : This paper presents data from a retrospective study of endoscopic third ventriculostomy (ETV) in patients with shunt malfunction and proposes a simple and reasonable post-operative protocol that can detect ETV failure. Methods : We enrolled 19 consecutive hydrocephalus patients (11 male and 8 female) who were treated with ETV between April 2001 and July 2010 after failure of previously placed shunts. We evaluated for correlations between the success rate of ETV and the following parameters : age at the time of surgery, etiology of hydrocephalus, number of shunt revisions, interval between the initial diagnosis of hydrocephalus or the last shunt placement and ETV, and the indwelling time of external ventricular drainage. Results : At the time of ETV after shunt failure, 14 of the 19 patients were in the pediatric age group and 5 were adults, with ages ranging from 14 months to 42 years (median age, 12 years). The patients had initially been diagnosed with hydrocephalus between the ages of 1 month 24 days and 32 years (median age, 6 years 3 months). The etiology of hydrocephalus was neoplasm in 7 patients; infection in 5; malformation, such as aqueductal stenosis or megacisterna magna in 3; trauma in 1; and unknown in 3. The overall success rate during the median follow-up duration of 1.4 years (9 days to 8.7 years) after secondary ETV was 68.4%. None of the possible contributing factors for successful ETV, including age (p=0.97) and the etiology of hydrocephalus (p=0.79), were statistically correlated with outcomes in our series. Conclusion: The use of ETV in patients with shunt malfunction resulted in shunt independence in 68.4% of cases. Age, etiology of hydrocephalus, and other contributing factors were not statistically correlated with ETV success. External ventricular drainage management during the immediate post-ETV period is a good means of detecting ETV failure.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2006년도 춘계학술발표회 논문집(I)
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• pp.334-337
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• 2006

Generally, fragility curve has been used in predicting failure of structures due to seismic actions. In this research, the method of drawing fragility curve has been applied to evaluating success/failure of structures and satisfactory/unsatisfactory of concrete mixture performance based on material parameters. In the paper, a detailed explanation of the procedure of drawing fragility curve based on material parameter has been introduced. Fragility curve generating procedure includes generation of virtual data points from limited number of actual data points by bell curve implementation, determination of success/failure status of each data point by assigned criterion, and completion of final fragility curve. For practical applications, workability of concrete mixture content based on "unit water" has been used to obtain fragility curve. Detailed explanation of fragility curve drawing procedure for material parameters is presented.

• 한국정보기술응용학회:학술대회논문집
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• 한국정보기술응용학회 2007년도 추계 국제학술대회
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• pp.137-137
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• 2007

• 산업경영시스템학회지
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• 제17권32호
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• pp.227-232
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• 1994

In the performance domain, physical performance is a measure that represents some degree of system, subsystem, component or device success in a continuous sense, as opposed to a classical binomial sense (success or failure). If applicable sensing and monitoring means exist, physical performance can be observed over time, along with explanatory variables or covariables. Performance-based reliability represents the probability that performance will remain satisfactory over a finite period of time or usage cycles in the future when a performance critical limit (which represents an appropriate definition of failure in terms of performance) is set at a fixed level, based on application requirements. In the case of inadequate knowledge of the failure mechanics, this physical based empirical modeling concept along with performance degradation knowledge can serve as an important analysis tool in reliability work in product and process improvement.

• Tuberculosis and Respiratory Diseases
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• 제57권5호
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• pp.439-442
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• 2004

배 경 : 기관 내관 발관의 실패와 재 삽관 (extubation failure and reintubation)은 유병률 및 사망률의 증가를 초래하므로 기관 내관을 제거할 때 신중한 평가가 필요하다. 발관 실패의 여러 위험 요인이 제시 되었고 발관의 임상적 기준이 제시되었으나 여전히 일부 환자는 발관 실패를 경험하게 된다. 이에 저자들은 계획된 발관을 시도한 환자를 대상으로 발관 실패 및 재 삽관한 환자의 임상적 특징을 보고자 하였다. 방 법 : 인공 호흡기 치료 후 호전되어, 충분한 발관에 대한 평가를 거쳐 계획된 발관을 시도한 31명의 환자를 대상으로 하였다. 이들 환자 중 발관 48시간 이내에 호흡 부전으로 재 삽관 한 환자를 발관 실패로 정의하였다. 발관 성공 군과 실패 군간의 임상적 지표, 호흡기능 및 혈역학적 지표 등을 비교하였다. 결 과 : 31명의 환자 중 6명이 발관 실패 군이었고, 발관 실패율은 19.4% 였다. 성공 군과 실패 군 간에 나이 (성공군 $60.4{\pm}15.65$, 실패 군 $80.3{\pm}7.17$세), 총 삽관 시간(성공 군 $7.12{\pm}2.47$, 실패 군 $13.83{\pm}2.4$ 일), 분당 심박수 (성공 군 $94.32{\pm}5.77$, 실패 군 $110.67{\pm}3.78$ 회)에서 의미 있는 차이를 보였다. 결 론 : 고령의 환자나 삽관 기간이 길었던 환자는 발관에 신중을 기해야 하며, 발관 전 심장 기능의 적극적인 평가도 필요할 것으로 사료된다.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제12권sup1호
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• pp.41-45
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• 2009

Optimal nutrition in infancy and early childhood is the success behind good health, growth, and development of children. Failure to thrive may be the end point of any combination of a nutritional disorder, poor growth, and psychosocial deprivation. Hospital admission is rarely necessary and may be counterproductive. Day attendance, for investigation and observation of child-parent interaction, may be more valuable. Nutritional supplementation, together with nutritional counseling, can improve food intake and growth in children with failure to thrive.

• Asian Pacific Journal of Cancer Prevention
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• 제13권1호
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• pp.175-179
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• 2012

The objective of the study is to investigate the success rate of quit attempts and identify factors associated with success or failure of quit attempts in a quit smoking clinic. A cohort study was conducted with 495 smokers who enrolled in a quit smoking clinic from 2005 to 2008. The factors leading to quit smoking successfully were "being Malay", "having high blood pressure" "type of Nicotine Replacement Therapy" and "duration of follow up". In contrast, clerical staff had negative association to quit smoking. People who started smoking in their teenage years had a high risk of relapse. Integration of active follow up and tailor-made support programmes for quitters appear necessary in order to maintain their non-smoking status and encourage them to be permanent quitters. Integration of quit smoking clinics and primary care clinics could be another potential step for the success of quit smoking programmes.

• 한국산학기술학회논문지
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• 제12권8호
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• pp.3406-3414
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• 2011

창업은 거시적인 측면에서는 고용을 창출하여 국가경제의 근간을 이루는 기능을 담당하지만 개인의 측면에서는 소득원의 역할을 담당하기 때문에 창업의도를 파악하기 위해서는 개인적인 측면에서 경제적인 성과가 매우 중요한 요소로 작용할 수 있다. 본 연구는 창업에 대한 성공과 실패에 대한 태도가 창업에 미치는 영향력을 분석하고자 한다. 본 연구의 연구 결과는 다음과 같이 요약할 수 있다. 첫째, 창업의 성공에 대한 태도는 창업의도에 정적인 영향력을 나타내고 있으며, 반면 실패에 대한 창업 태도는 창업의도에 부적인 영향력을 보여주고 있다. 둘째, 시장전망이 창업의도에 미치는 조절변수의 영향력을 살펴본 결과 실패와 시장전망의 상호작용에서 부정적인 영향력을 나타났다. 본 연구결과 실패라는 부정적인 요소가 창업의도에 영향을 중요한 원인으로 규명되었으므로 실패를 극복할 수 있는 창업교육이 필요하다.