• Investigative Magnetic Resonance Imaging
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• 제22권1호
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• pp.10-17
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• 2018

Purpose: To evaluate interpretation errors involving spine MRIs by residents in their second to fourth year of training, classified as minor, intermediate and major discrepancies, as well as the types of commonly discordant lesions with or without clinical significance. Materials and Methods: A staff radiologist evaluated both preliminary and final reports of 582 spine MRIs performed in the emergency room from March 2011 to February 2013, involving (1) the incidence of report discrepancy, classified as minor if there was sufficient description of the main MR findings without ancillary or incidental lesions not influencing the main diagnosis, treatment, or patients' clinical course; intermediate if the correct diagnosis was made with insufficient or inadequate explanation, potentially influencing treatment or clinical course; and major if the discrepancy affected the main diagnosis; and (2) the common causes of discrepancy. We analyzed the differences in the incidence of discrepancy with respect to the training years of residents, age and sex of patients. Results: Interpretation discrepancy occurred in 229 of the 582 cases (229/582, 39.3%), including 146 minor (146/582, 25.1%), 40 intermediate (40/582, 6.9%), and 43 major cases (43/582, 7.4%). The common causes of major discrepancy were: over-diagnosis of fracture (n = 10), missed cord lesion (n = 9), missed signal abnormalities associated with diffuse marrow (n = 5), and failure to provide differential diagnosis of focal abnormal marrow signal intensity (n = 5). No significant difference was found in the incidence of minor, intermediate, and major discrepancies according to the levels of residency, patients' age or sex. Conclusion: A 7.4% rate of major discrepancies was found in preliminary reporting of emergency MRIs of spine interpreted by radiology residents, probably related to a relative lack of clinical experience, indicating the need for additional training, especially involving spine trauma, spinal cord and bone marrow lesions.

• 한국콘텐츠학회논문지
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• 제16권8호
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• pp.332-344
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• 2016

본 연구에서는 어휘 숙달도에 따라 짝을 세 가지 유형으로 구성하고 짝과 상호작용하면서 어휘 과제를 하는 것이 우연적인 어휘 습득에 미치는 효과의 차이를 가져오는지를 알아보았다. 본 연구에 참여한 대학생 46명은 상대적인 어휘 숙달도에 따라 상상(n=14), 상하(n=18), 하하(n=14) 등의 세 집단으로 나뉘었다. 우선 참여자들은 사전 어휘 지식을 측정하는 시험을 보았고, 짝과 함께 3주 동안 어휘 과제를 실시한 후 짝의 구성 유형이 어휘 습득에 미친 영향에 어떤 차이가 나는지를 알아보기 위해 수용적 및 산출적 어휘 지식을 평가하는 사후 시험을 보았다. 2주 후에는 실험 처치 효과의 지속 여부를 파악하기 위해 지연된 사후 시험이 시행되었다. 숙달도가 높은 학생들이 짝 활동을 통해 더 많은 학습 효과를 보았다는 선행 연구와 달리, 본 연구에서는 두 참여자의 어휘 숙달도가 같은 상상 집단 혹은 하하 집단보다 어휘 숙달도가 서로 다른 참여자가 짝을 이룬 상하 집단의 성취도가 전반적으로 더 높은 것으로 나타났다. 더욱이 협력적인 짝 활동은 상하 집단에 속한 상위 구성원뿐만 아니라 하위 학생들의 어휘 습득에도 효과가 있었고 이런 결과들을 종합하여 교육적인 시사점도 논의되었다.

• 가정과삶의질연구
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• 제34권4호
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• pp.51-75
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• 2016

This study focuses on the life experience of married women in their 30s to 40s who have experienced parental divorce. For a comprehensive understanding towards the women, this study takes a life history research approach. The participants of this research are 8 women who have experienced parental divorce and are now married with children. The data were gathered through in-depth interviews and were analyzed through the spiral of analysis, following the process of Wolcott's "description, analysis, and interpretation." The results of this study are as follows. First, participants experienced emotions such as fear, anger, and lack of affection. Second, parenting attitude and parental divorce had negative effects on the participants' formation and development of self concept and in turn, participants experienced anxiety and withdrawal from interpersonal relationships. Some had difficulties in concentrating on their schoolwork, which was caused by psychological effects from their instable home environments and some were negligent at school due to their parents' indifference or as an act of rebellion towards them. Third, although participants displayed interest towards the opposite sex, fear towards the opposite sex or unrealistic expectations led to difficulties in forming relationships. Participants also confessed that although they married so that they could escape their original family and form a new happy one, they experienced a rocky start at the beginning of their marriage. Fourth, parental divorce had a lifelong impact on children. Even after the children became adults, parental divorce affected each key stage of transition in life such as dating, choosing one's spouse, marriage, and child rearing. Fifth, participants displayed a strong attachment to life under the assumption that only they themselves can be depended on. This led to their strong commitments to a successful marriage without the possibility of divorce. In conclusion, parental divorce is not a transitory or incidental event. Rather, it becomes a part of the children's lives with lifelong implications.

• 한국조경학회지
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• 제31권2호
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• pp.12-27
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• 2003

The purpose of this study is to look for an environmental design method based on open narrative structure, and to promote various experiences and interpretations of space through user's engagements. That is to say, the designer does not lead specific events through separate Boning but using the continuous open composition users are provided with margins for their imaginations. Spatial formulation through open narrative structure gives us various thoughts and it plays an important role in making a sequential space. Like an abstract painting, it is a complex story making or arranging a montage of images containing stories that elicit the reader's engagement through diverse interpretations. Like this, open composition exists in an ambiguous state and it is possible to interpret unfinished‘evolving work’within it. Utilizing open narrative structure, this study attempts to apply the idea of sequencing and open composition in the case of designing Arirang Culture Park. Open composition should induce various engagements by users and could be a medium which organically connects nature, culture and people. The spatial strategies of‘ambiguity’ and‘transparency’are like a bundle of complex and heterogeneous factors. Finally, the study focuses on the ‘integration’of the main ideas that compose multilayered space. ‘Voidness’and‘thickening’are also used for spatial strategies in open narrative structure. As alternative plans for undecided programs of the space, the voidness can be a strategic design program with flexibility about changes of futures. Also, thickening can be a strategic design program for functional reinforcement of the space, for the dramatic effects and for the generation of incidental events. Although both voidness and thickening seem paradoxical, we can see they are similar in the way that both focus on various spatial uses and by how they do not function as one-to-one correspondence, but as multiple correspondences. Therefore, open narrative structure is possible to apply in designing space and it can be an alternative design strategy for inducing multiple interpretations of space.

• 마케팅과학연구
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• 제9권
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• pp.129-151
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• 2002

오늘날 해운기업들은 해운시장의 급격한 환경변화에 대처하기 위해 품질경영에 대하여 새로운 인식과 경쟁력 우위로 신규항로 개발 등 틈새시장의 개척 등에 적극적인 의지를 보이고 있다. 본 연구는 해운기업의 TQM의 원천, 활동과 실행성과와의 인과관계를 실증적으로 분석 하였으며, 해운서비스 제공형태를 세분화하여 외항해송, 내항해송, 해운관련 부대사업과 해운관련 단체들을 대상으로 하여 이들 기업에서는 TQM 활동과 실행성과가 어떠한 영향을 미치는지, 그리고 품질경영 활동단계에 따라서 어떻게 달라지는지를 규명하기 위해서 종합적인 상황론적 접근을 시도한 실증적인 연구이다. 본 연구의 결과를 요약하면, 해운기업은 TQM실행성과를 높이기 위해 TQM활동에 종업원이 전원 참여하도록 유도하여야 하며, 종업원의 교육 및 훈련에 필요한 교육 프로그램을 제공하고, 자체적인 훈련계획을 수립하여 실천하여야 할 것이다. 또한 해운기업이 고객과의 관계증진올 위해 주기적으로 고객만족도를 조사하고 이들 자료를 기초로 TQM 활동에 반영하는 해운서비스의 설계에도 적극적이어야 할 것이다.

• Tuberculosis and Respiratory Diseases
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• 제42권3호
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• pp.370-374
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• 1995

우중엽의 기환지확장증으로 수술을 받은 환자에서 carcinoid형 소종양 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다.

• 한국가구학회지
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• 제20권4호
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• pp.358-373
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• 2009

Probability based design(PBD)method has some advantages against current design methods. First, it can provide the quantitative values for the structural safety or capacity through the reliability index, $^{\beta}$. That presented the certainty on the corresponding structure for the designer or user, also that permitted the broad consideration in the safety of structures. In addition, it can give the quantitative lifetime of the related structure in the calculation process of target reliability index. Also, incidental economical efficiency can be expected because decrease of required structural material can be obtained by using the practical material data. Unlikely current deterministic structural design methods, main advantage is the reflection of real condition in the structural design process by application of the data with not small clear specimen but structural size material. Advanced countries, namely America, Canada, Europe, Australia and New Zealand already converted from allowable stress design(ASD) method to PBD method and used as a standard wooden structures code in the late 1980s and 1990s. Other domestic constructions standards such as the steel or concrete constructions accepted and used the PBD methods already. Accordingly, wooden structural design method also should be converted from deterministic ASD to probabilistic LRFD(Load and resistance factor design) in order to keep pace with worldwide demands for PBD. Hence, to suggest the reason of introduction the PBD in domestic wooden structural design and analysis, a brief example was used to show the different reliability index by using the different design methods. Definition, merits and demerits of deterministic ASD and probabilistic LRFD were followed. Also the three examples were presented to show the similarity and differences between ASD and LRFD. Finally, connection problems that might cause a disputation in wooden structural design and analysis were broadly examined.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제4권1호
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• pp.62-77
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• 2010

Emerging applications with high data rates will need to transport bulk data reliably in wireless sensor networks. ARQ (Automatic Repeat request) or Forward Error Correction (FEC) code schemes can be used to provide reliable transmission in a sensor network. However, the naive ARQ approach drops the whole frame, even though there is a bit error in the frame and the FEC at the bit level scheme may require a highly complex method to adjust the amount of FEC redundancy. We propose a bulk data transmission scheme based on erasure-resilient code in this paper to overcome these inefficiencies. The sender fragments bulk data into many small blocks, encodes the blocks with LT codes and packages several such blocks into a frame. The receiver only drops the corrupted blocks (compared to the entire frame) and the original data can be reconstructed if sufficient error-free blocks are received. An incidental benefit is that the frame error rate (FER) becomes irrelevant to frame size (error recovery). A frame can therefore be sufficiently large to provide high utilization of the wireless channel bandwidth without sacrificing the effectiveness of error recovery. The scheme has been implemented as a new data link layer in TinyOS, and evaluated through experiments in a testbed of Zigbex motes. Results show single hop transmission throughput can be improved by at least 20% under typical wireless channel conditions. It also reduces the transmission time of a reasonable range of size files by more than 30%, compared to a frame ARQ scheme. The total number of bytes sent by all nodes in the multi-hop communication is reduced by more than 60% compared to the frame ARQ scheme.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제12권1호
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• pp.57-63
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• 2009

평소 복부 팽만을 보인 2세 남아가 내원 3일 전부터 간헐적인 구토를 동반하여 시행한 복부 방사선 사진에서 좌상복부에서 석회화 소견을 관찰하여 상부 위장관내시경과 복부 전산화 단층 사진을 시행하였다. 술 후 병리 검사에서 상당히 빈도가 드문 석회화 섬유 종양을 발견하였기에 보고하는 바이다.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2006년도 학술발표회 논문집
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• pp.1191-1195
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• 2006

Now days, heavy storm occur to be continue. It is hard to use before frequency based on flood discharge for decision that design water pocket structure. We need to estimation of frequency based on flood discharge on the important basin likely city or basin that damage caused by flood recurrence. In this paper flood discharge calculated by Clark watershed method and SCS synthetic unit hydrograph method about upside during each minute of among time distribution method of rainfall, Huff method choosing Bocheong Stream basin that is representative basin of International Hydrologic Project (IHP) about time distribution of rainfall that exert big effect at flood discharge estimate to research target basin because of and the result is as following. Relation between probability flood discharge that is calculated through frequency analysis about flood discharge data and rainfall - runoff that is calculated through outward flow model was assumed about $48.1{\sim}95.9%$ in the case of $55.8{\sim}104.0%$, SCS synthetic unit hydrograph method in case of Clark watershed method, and Clark watershed method has big value overly in case of than SCS synthetic unit hydrograph method in case of basin that see, but branch of except appeared little more similarly with frequency flood discharge that calculate using survey data. In the case of Critical duration, could know that change is big area of basin is decrescent. When decide time distribution type of rainfall, apply upside during most Huff 1-ST because heavy rain phenomenon of upsides appears by the most things during result 1-ST about observation recording of target area about Huff method to be method to use most in business, but maximum value of peak flood discharge appeared on Huff 3-RD too in the case of upside, SCS synthetic unit hydrograph method during Huff 3-RD incidental of this research and case of Clark watershed method. That is, in the case of Huff method, latitude is decide that it is decision method of reasonable design floods that calculate applying during all $1-ST{\sim}4-TH$.