• Clinics in Shoulder and Elbow
• /
• 제1권1호
• /
• pp.83-92
• /
• 1998

Fractures of the clavicles are extremely common, accounting for 5 to 10% of all injuries in the adult skeletal trauma. Despite this, nonunions and symptomatic malunions after clavicular fracture are uncommon. When these complications occur, however, they may be associated with 11 pattern of disability that includes not only pain but also impairment of upper extremity function. The purpose of this study was to clarify the outcome of clavicular fractures treated by conservatively, and emphasize treatment and factors that possibly predispose a clavicular fracture to poor function or nonunion. We evaluated 9] consecutive fractures of the middle-third of the clavicle in adults which had been treated conservatively. There were 59 males and 33 females ranging in age from 17 to 80 years (average 36.8 years). Nine of the 91 fractures (10%) had developed nonunion, and 4 fractures (4.4%) reported unsatisfactory results. No patients had significant impairment of range of motion or strength as a result of the injury. We found that initial shortening at the fracture of≥20mm(6 cases) had a highly significantly association with nonunion(P<0.0001). Final shortening of 20mm or more (4 cases) was associated with an unsatisfactory result, but not with nonunion(P<0.0001). Our results have led us to recommend the open reduction and internal fixation of severely displaced fractures of the middle third of the clavicle in adults patients.

• 터널과지하공간
• /
• 제19권5호
• /
• pp.397-406
• /
• 2009

최근에는 구조적 노후화 및 기능적 요건을 만족하지 못하여 해체되는 산업구조물의 수요가 증가하고 있으며, 해체과정에서 발생되는 시간적, 공간적 환경위해요소를 최소화하기 위해 발파해체공법의 적용이 증가하고 있다. 본 시공 사례는 구조적 노후화와 기능적 요건을 충족하지 못하는 대단면 철근콘크리트 특수구조물인 Crusher & Screen 구조물의 발파해체를 기술하였다. 대단면 철근콘크리트 부재에 대한 다양한 사전취약화 및 발파패턴을 적용하였으며 발파진동 및 충격진동을 감소시키기 위해 동일한 기둥 내에서의 발파시차 및 발파구역간의 발파시차를 설정하였다. 대단면 철근콘크리트 특수구조물의 해체에 발파해체공법을 적용함으로써 주변 시설물에 대한 피해없이 안전하고 효율적으로 해체가 완료되었다.

• 한국정보전자통신기술학회논문지
• /
• 제11권2호
• /
• pp.195-203
• /
• 2018

SNS(Social Network Service) 이용자의 폭발적 증가와 더불어 소셜커머스 시장이 새로운 소비시장으로 떠오르고 있다. 소셜커머스 시장이 최근 몇 년간 급성장하였고 앞으로도 지속적인 성장세를 보일 것으로 예측된다. 그러나 이러한 시장환경에도 불구하고 소셜커머스 활성화 저해요인으로 작용하는 불만족 요인에 대해서는 연구가 부족하다. 본 연구는 Hertzberg' 2 요인이론을 바탕으로 소셜커머스 이용자들의 만족과 불만족 요인에 대한 연구이다. 이를 위해 먼저 소셜커머스 이용 경험자를 대상으로 소셜커머스 사이트 특성과 이용자특성을 인터뷰 및 문헌고찰을 통해 도출하였다. 다음으로 이 요인들과 만족, 불만족과의 영향관계를 검증하고 상품 관여도에 따라 이 영향관계가 조절되는지 실증하였다. 그 결과, 가격할인율, 다양성, 지역기반 제공성, 전자상거래 친숙도가 만족에 정의 영향을 미치는 요인으로 나타났고, 가격할인율, 상호작용성, 혁신성이 불만족에 정의 영향을 미치는 것으로 나타났다. 또 만족이 지속사용의도에 정의 영향을 미치는 것으로 나타났다. 특히 가격할인율은 만족에 정의 영향을 미치는 동시에 불만족에도 정의 영향을 미치는 유일한 요인으로 나타났다.

• 산경연구논집
• /
• 제9권12호
• /
• pp.63-72
• /
• 2018

Purpose - In this study, it is classified the service quality dimension of mobile shopping app using Kano model. In addition, it is evaluated quality factors suitable for strategic management from the viewpoint of service provider through mobile application through binary dimension analysis. Research design, data, and methodology - In this study, seven quality dimensions such as information quality, reliability, immediacy, convenience, design, security and customer service were derived through related studies to make binary shopping quality app quality measurement. 37 sub-variables were set by each quality dimensions. Each questionnaire was composed of positive and negative items like Kano's proposed method, and the satisfaction coefficient suggested by Timko(1993) was examined to understand the influence of each factors on customer satisfaction. Results - As a result of research, shopping app users perceived unity quality factor in most items of service quality dimension such as information quality, reliability, immediacy, convenience and customer service. In addition, the satisfaction coefficient showed a good impression, quick response of the result, fast delivery, and the unsatisfactory coefficient showed more interest in personal information such as payment method safety, and transaction security. As a result of research, shopping app users perceived unity quality factor in most items of service quality dimension such as information quality, reliability, immediacy, convenience and customer service. And, in information quality, the information overload was classified as an apathetic quality component, while the related information provision belonged to an attractive quality component. In reliability quality, customized service provision was classified as an attractive quality component. In instant connectivity, the quality of the connection during transport was classified as an attractive quality component. In convenience quality, access to product information was classified as a one-way quality component. All components of designs quality were classified as attractive quality components, and in security quality, all of their components were all classified as one quality component. Lastly, in customer service, they components were all classified as a single quality component. In addition, the satisfaction coefficient showed a good impression, quick response of the result, fast delivery, and the unsatisfactory coefficient showed more interest in personal information such as payment method safety, and transaction security. Conclusion - In the online service environment, which is difficult to differentiate in terms of upward upgrading only by technological implementation and function, the results of this study can be suggested as a differentiating factor for major channels with customers rather than improve the brand image.

• Asian Pacific Journal of Cancer Prevention
• /
• 제14권4호
• /
• pp.2181-2184
• /
• 2013

Prostate cancer is the most common malignancy in men in the United States. Surgery or radiation are sometimes unsatisfactory treatments because of the complications such as incontinence or erectile dysfunction. Selenium was found to be effective to preven prostate cancer in the Nutritional Prevention of Cancer Trial (NPC), which motivated two other clinical trials: the Selenium and Vitamin E Cancer Prevention Trial (SELECT) and a Phase III trial of selenium to prevent prostate cancer in men with high-grade prostatic intraepithelial neoplasia. However, these two trials failed to confirm the results of the NPC trial and indicated that the selenium may not be preventive of prostate cancer. In this article we review the three clinical trials and discuss some different points which might be potential factors underlying variation in results obtained.

• 한국음향학회지
• /
• 제9권4호
• /
• pp.45-54
• /
• 1990

급 배수 설비소음은 공동주택 내부소음의 설문조사 결과, 상하층간 바닥충격음과 함께 거주자에게 두드러진 불만요소로써 나타나고 있다. 본 연구에서는 이러한 공동주택 급배수 설비소음의 실태를 측정하고 실태조사와 급수관의 고체전달음 및 배수음의 저감 모델 실험 결과를 중심으로 급배수 설비소음에 관한 공법상의 저감방안을 제시하였다.

• 전기의세계
• /
• 제18권2호
• /
• pp.7-14
• /
• 1969

From the first customer located right at the substation to the last customer at the end of the line, voltage must be held within close limits, so the voltage regulation is more important than the thermal limit. On a typical distribution system during the peak load period, the voltage drop may be serious enough to cause unsatisfactory operation of home appliances in the residential area, and present many problems to manufacturing industries, where the voltage must be maintained within close limits to insure smooth operation. Among all the factors contributing to voltage drop in the distribution system, the voltage drop in the distribution transformer may account for 30% of this figure. If we can eliminate this factor, the power companies can provide better quality electricity to more customers with the existing distribution facilities, thus saving on initial investment costs. Taking all these problems into consideration, the author undertook the design of a capacitive transformer which would give zero voltage drop at rated load and at 80% lagging power factor while incorporating overload features to withstand 400% overload for at least 100 seconds. The following are the results obtained through design, manufacture and test of an initial experimental transformer built with these specific purposes.

• Smart Structures and Systems
• /
• 제25권1호
• /
• pp.105-109
• /
• 2020

The authors address the problem of ameliorating or updating existing educational buildings. This building typology is quite sensitive to social and media pressure, mainly when accidents have occurred nearby. When a building is classified as unsatisfactory, the current code requirements oblige one to re-design the building with significant penalty factors in the resistance values. Often the only solution is to destroy the existing facility and to build a new one. When attempting to preserve the existing building, higher levels of safety are demanded by the society and this can only be achieved by innovative system architectures. The authors propose and discuss a prototype that can be easily adopted to retrofit small educational buildings as the ones common in small municipalities. The higher performance is pursued by a special design of the control scheme, with new control devices and special control laws.

• 한국안전학회지
• /
• 제34권5호
• /
• pp.63-71
• /
• 2019

Work Guideline of Construction Quality Management was revised in July 2017, and it has changed the perception of scaffolding in South Korea. The on site investigation and survey was performed on manufacturers, leasing companies, and quality inspection agencies regarding the compliance with the guideline for the scaffolding and the related components brought to the site. Moreover, the related guidelines and identified unsatisfactory quality management items were analyzed by each subject. As a result, the major factors that cause the problems were reasonably deducted. The related regulations to prohibit the delivery of faulty scaffolding components to the construction site in order to secure the safety of the temporary structure was suggested.

• Journal of Information Technology Applications and Management
• /
• 제30권3호
• /
• pp.37-46
• /
• 2023

This study aims to find satisfactory or unsatisfactory factors that startups either currently being occupied in or already left the business incubator made in a survey with a total of the sixteen firms responded. Among the sixteen, ten were the firms that have occupied in the business incubator and the six firms left the incubator. Mostly, the firms were satisfied with the incubator's roles with showing 4.4 satisfaction. The support for business facilities were the number one factor for the incubator has to do with the firms had positive answers from the firms. However, support for the production or sales showed less satisfaction compared to business facilities, a need that the incubator should improve the roles for the future. The results of this study can contribute to the development of medium and long-term plans for the business incubator.