실선관측에 의한 가변추진기의 캐비테이션 초생속도 향상에 관한 연구

임용수(Yong-Su Lim),조관준(Kwan-Jun Jo),연제길(Je-Gil Yeun) 한국마린엔지니어링학회 2014 한국마린엔지니어링학회지 Vol.38 No.9

택견전수관 서비스품질이 고객만족, 충성도 및 신뢰에 미치는 영향

임용수 ( Yong Soo Lim ),오연풍 ( Youn Poong Oh ),최승식 ( Seung Sik Choi ),정명수 ( Myeong Su Jung ),전진석 ( Jin Seok Juen ),장경태 ( Kyeong Tae Jang ) 대한무도학회 2010 대한무도학회지 Vol.12 No.3

본 연구는 택견전수관 서비스품질이 고객만족, 충성도 및 신뢰에 어떠한 영향을 미치는가를 규명하는데 연구의 목적이 있다. 이에 구체적인 목적을 달성하기 위하여 택견전수관의 서비스품질 요인을 독립변인으로 설정하였고, 고객만족, 고객충성도, 신뢰를 종속변인으로 설정하였다. 이 연구의 대상은 2010년 현재 광주광역시에 소재하고 있고 택견전수관에 자녀를 보내고 있는 학부모들을 대상으로 단순 무작위표집법을 이용하여 300부를 표본으로 추출하여, 그 중 불성실하게 응답한 94부를 제외한 총 206부를 최종 연구대상으로 선정하였다. 자료처리는 SPSS Ver. 12.0 프로그램을 사용하여 빈도분석, 요인분석, 신뢰도분석, 상관분석, 회귀분석 등을 실시하였다. 이상과 같은 연구절차를 통해 다음과 같은 결론을 도출하였다. 첫째, 서비스 품질 하위요인인 유형성, 반응성, 공감성 요인이 고객만족에 정(+)의 영향을 미치는 것으로 나타났다. 둘째, 서비스 품질 하위요인인 신뢰성, 반응성, 확신성 요인이 고객충성도에 정(+)의 영향을 미치는 것으로 나타났다. 셋째, 서비스품질이 신뢰의 하위요인인 성실성(신뢰성, 반응성, 확신성, 공감성), 일관성(반응성, 확신성, 공감성), 이타성 및 개방성(유형성, 반응성, 공감성)에 정(+)영향을 미치는 것으로 나타났다. The purpose of this study is to reveal the effects of service quality, customer satisfaction, royalty, and trust in taekkyon halls. To accomplish the specific purpose, the factor of service in taekkyon halls was set up as the independent variable and customer satisfaction, royalty, and trust in taekkyon halls were set up as the dependent variables. The subjects of this study were parents who had children attending taekkyon halls located in G Metropolitan City. Using simple random sampling, 300 samples were drawn, 94 were excluded because of their poor responses, and finally a total of 206 were selected. Data processing was analyzed in frequency, factor, reliability, correlation, and regression by the SPSS Ver. 12.0 program. Finally, the following results were drawn. First, in the sub-factors of service quality, tangibles, responsiveness, assurance, and empathy was found to have an effect on customer service and royalty. Second, in the sub-factors of service quality, reliability, responsiveness, and assurance was found to have an effect on conscientiousness, consistency, and openness of sub-factors of trust. Third, it was found that the service quality has a positive(+) effect on sincerity(reliability, responsiveness, assurance, and empathy), consistency(responsiveness, reliability, empathy), altruism or openess(tangibility, responsiveness, empathy) in the sub-factors of trust. As mentioned above, given synthesizing the specific contents, a fact can be tried to be inferred that the factor of service quality in taekkyon halls has a great effect on customer satisfaction, loyalty, trust.

경추부 손상에서 자기 공명 영상법의 진단적 유용성

김용인 ( Yong In Kim ),노기철 ( Ki Cheul Noh ),강영준 ( Young Joon Kang ),임용수 ( Yong Su Lim ),양혁준 ( Hyuk Jun Yang ),이근 ( Gun Lee ),진욱 ( Wook Jin ),황성연 ( Seong Youn Hwang ) 대한외상학회 2004 大韓外傷學會誌 Vol.17 No.2

Background: Simple cervical X-rays often miss cervical spine injuries. Magnetic resonance imaging is valuable in these cases. The aims of this study is to determine high-risk factors of the cervical injuries, and to contribute to make indications of cervical MRI in evaluation of blunt trauma patients. Methods: We retrospectively reviewed the patients who visited our ED due to nuchal pain and examed by simple cervical X-ray and cervical MRI after blunt trauma. We analyzed the incidence of abnormal MRI findings in various patients groups. We also compared the incidence of missed cervical spine injury by level of injured spine. We thought cervical MRI to be goldstandard of this analysis. Results: The incidence of abnormality on cervical MRI is higher in male patients than female patients (p<0.01). Old (age≥40) patients frequently shows abnormal cervical MRI findings than young patients (p<0.001). In patients who had neurologic abnormality, the incidence of abnormality on cervical MRI is higher than neurologically normal patients (p<0.001). But, mechanisms of injuries and associated injuries are not related to the incidence of abnormality on cervical MRI. Injuries of lower cervical spine (C7) are frequently missed than those of other cervical spines (p<0.01). Conclusion: When evaluate cervical injuries in male, old, and neurologically abnormal patients, we must consider cervical MRI although the simple cervical X-ray is normal. We must pay more attention to lower cervical spine injuries than other cervical spine injuries.

흉부 외상에서 폐좌상(Pulmonary contusion)과 외상성 폐낭종 (Traumatic Lung cyst)을 동반한 환자의 임상경과 및 예후 예측 인자

김용환 ( Yong Hwan Kim ),현성열 ( Sung Youl Hyun ),김진주 ( Jin Joo Kim ),김정권 ( Chung Kwon Kim ),임용수 ( Yong Su Lim ),양혁준 ( Hyuk Jun Yang ),이미진 ( Mi Jin Lee ) 대한외상학회 2008 大韓外傷學會誌 Vol.21 No.2

Purpose: A traumatic lung cyst (TLC) is a rare complication and is usually detected with a pulmonary contusion. This study attempted to identify the prognostic factors and the clinical characteristics for pulmonary contusion with TLCs. Methods: We retrospectively reviewed the medical records and chest CT findings of 71 TLC patients who visited our hospital from January 2006 to December 2007. Patients were assessed for any clinical characteristics. We evaluated significant differences between the survival and the death groups for patients with a traumatic lung cyst. Results: The male-to-female ratio of patients with TLCs was 54:17, and the mean age of the patients was 37.70±19.78 years with 36.6% of the patients being under 30 years forage. The cause of blunt thoracic trauma was mainly pedestrian traffic accidents (26.8%) and falls (25.4%). Associated conditions included pulmonary contusion in 68 patients (95.7%), hemopneumothorax in 63 patients (88.7%), and rib fracture in 52 patitents (73.2%). There was no consistent relationship between the number of TLCs and the pulmonary contusion score. The overall mortality rate of TLC patients was 26.8%. Death correlated with a need for ventilatory assistance, mean arterial pressure, worst mean arterial pressure in 24 hours, initial pH and base excess, worst pH and base excess in 24 hours, refractory shock, initial GCS score, and pulmonary contusion score. Conclusion: The presence of the aforementioned predictors indicate serious injury, which is the main determinant of the outcome for thoracic injuries with TLCs. (J Korean Soc Traumatol 2008;21:100-107)

포스터 세션 : PB9 공공품질/국방품질/원자력 안전품질/서비스품질/중소기업품질/품질사례 ; PB9.11 : RAM분석 기반의 함정분야 위험식별 객관화 방안

조관준 ( Kwan Jun Jo ),임용수 ( Yong Su Lim ),강병수 ( Byoung Soo Kang ) 한국품질경영학회 2014 한국품질경영학회 학술대회 Vol.2014 No.1

소아 두부외상 환자에서의 반복적인 두부 CT 검사의 유용성

조호준 ( Ho Jun Jo ),임용수 ( Yong Su Lim ),김진주 ( Jin Joo Kim ),조진성 ( Jin Seong Cho ),현성열 ( Sung Youl Hyun ),양혁준 ( Hyuk Jun Yang ),이근 ( Gun Lee ) 대한외상학회 2015 大韓外傷學會誌 Vol.28 No.3

Purpose: Traumatic brain injury (TBI) is the most common cause of pediatric trauma patients came to the emergency department. Without guidelines, many of these children underwent repeat brain computed tomography (CT). The purpose of this study was to evaluate the value of repeat brain CT in children with TBI. Methods: We conducted a retrospective study of TBI in children younger than 19 years of age who visited the emergency department (ED) from January 2011 to December 2012. According to the Glasgow Coma Scale (GCS) and Pediatric Glasgow Coma Scale score of the patients, study population divided in three groups. Clinical data collected included age, mechanism of injury, type of TBI, and outcome. Results: A Total 83 children with TBI received repeat brain CT. There were no need for neurosurgical intervention in mild TBI (GCS score 13-15) group who underwent routine repeat CT. 4 patients of mild TBI group, received repeat brain CT due to neurological deterioration, and one patient underwent neurosurgical intervention. Routine repeat CT identified 12 patients with radiographic progression. One patient underwent neurosurgical intervention based on the second brain CT finding, who belonged to the moderate TBI (GCS score 9-12) group. Conclusion: Our study showed that children with mild TBI can be observed without repeat brain CT when there is no evidence of neurologic deterioration. Further study is needed for establish indication for repetition of CT scan in order to avoid unnecessary radiation exposure of children. [ J Trauma Inj 2015; 28: 149-157 ]

진정수면제 중독 환자의 처방과에 따른 처방 및 임상양상 비교

김도민 ( Do Min Kim ),박원빈 ( Won Bin Park ),임용수 ( Yong Su Lim ),김진주 ( Jin Joo Kim ),장재호 ( Jae Ho Jang ),장지용 ( Jee Yong Jang ),양혁준 ( Hyuk Jun Yang ),이근 ( Geun Lee ) 대한임상독성학회 2014 대한임상독성학회지 Vol.12 No.2

Purpose: The purpose of this study was to compare prescription patterns and clinical features according to clinical departments in sedative-hypnotic intoxication. Methods: This was a retrospective study of histories, substances of poisoning, acquisition routes, clinical courses, and outcomes of patients treated for acute intoxication in a single emergency medical center from January, 2011 to December, 2013. Results: A total of 769 patients were treated for acute intoxication, 281 patients ingested sedative hypnotics during the study period. Among 281 patients, 155 patients were prescribed by psychiatric department and 80 patients were prescribed by non-psychiatric department. Benzodiazepines were more likely to be prescribed by psychiatrists, and zolpidem was preferred by non-psychiatrists (p<0.001). Non-psychiatrists were more likely to prescribe short acting benzodiazepines than psychiatrists (p<0.001). However, there was no statistically significant difference in the clinical outcomes, including prevalence of admission to ICU, ventilator care, and length of stay in ICU. In patients prescribed by non-psychiatrists, there were more patients prescribed without psychiatric diagnosis and diagnosed as major depression disorder after hospitalization. Conclusion: To promote rational prescribing of sedative hypnotics, proper psychiatric evaluation should be performed before prescribing, and educational programs including the contents of interactions and side effects of sedative hypnotics are needed.

혈관 색전술을 시행한 외상 환자에 대한 임상적 고찰

선종효 ( Jong Hyo Sun ),김재광 ( Jae Kwang Kim ),임용수 ( Yong Su Lim ),김진주 ( Jin Joo Kim ),조진성 ( Jin Sung Jo ),현성열 ( Sung Youl Hyun ),정호성 ( Ho Sung Jeong ),양혁준 ( Hyuk Jun Yang ),이근 ( Gun Lee ),김정호 ( Jeong Ho 대한외상학회 2009 大韓外傷學會誌 Vol.22 No.2

Purpose: Hemodynamically unstable pelvic fractures represent therapeutic challenges for the trauma team. The authors of this article have studied the clinical profiles of the angiographic intervention population at the emergency department during four years (2005~2009) to develop clinical guidelines for preventing deaths due to multiple trauma and for predicting the prognosis during initial evaluation. Methods: We performed a retrospective review of 34 patients who had undergone angiographic interventions at the emergency department and compared the differences in clinical variables between survivors and non-survivors. Results: Representative values were compared between survivors and non-survivors: RTS (revised trauma score) 7.006 (6.376~7.841) vs. 6.128 (4.298~6.494), PRC (packed red cell) units 5.5 (2.0~11.0) vs. 15 (8.0~18.5), and lactate (mmol/L) 3.0 (1.0~7.0) vs. 8.5 (3.5~10.5). RTS (p<0.01) and PRC units before angiographic interventions (p=0.01) and lactate (p=0.02) had correlations to the final outcomes. Conclusion: The availability of an angiographic suite and persistent hypotension after adequate fluid resuscitation for pelvic trauma are good indications of angiographic intervention for pelvic hemorrhage. (J Korean Soc Traumatol 2009;22:248-53)

의도적 중독으로 응급센터에 내원한 환자에 대한 연령별 비교 분석

김진현 ( Jin Hyun Kim ),조진성 ( Jin Seong Cho ),김진주 ( Jin Joo Kim ),임용수 ( Yong Su Lim ),양혁준 ( Hyuk Jun Yang ),이근 ( Geun Lee ) 대한임상독성학회 2016 대한임상독성학회지 Vol.14 No.2

Purpose: This study was conducted to compare demographic and characteristic differences in self-poisoned patients by age groups using a comprehensive trauma database. Methods: This study included 1,823 patients who were admitted to the emergency room following self-poisoning. Three age groups were defined: young patients (less than 19 years), adult patients (19 to 64 years) and elderly patients (65 years and old). From January 2011 to December 2015, data were obtained from in a single emergency medical center. We investigated the materials of poisoning, ingestion time, GCS, systolic blood pressure, heart rate, and outcomes of patients. Results: A total of 1,823 self-poisoned patients visited the hospital during 5 years. Among these, 130 (7.1%) were categorized as young, 1,460 (80.1%) were adults and 233 (12.8%) were elderly. The most common drug of self-poisoning substances was antipyretics (50.0%) for those in the young group, sedative drugs (45.0%) for adults, and pesticides (41.2%) for the elderly. Mortality was 2.7% in the adult group and 14.6% in the elderly group. After adjusting for all factors related to mortality, the odds ratio (OR) of mortality was 2.63 in the elderly group (95% confidence interval [CI]: 1.44-4.81). Conclusion: There were definite differences in the characteristics of three groups. The younger patients used drugs that could be easily obtained while older patients used more lethal drugs.

소아 중증 외상환자의 병원 전 요인에 따른 중증 손상의 예측과 손상의 예방

우재혁 ( Jae Hyug Woo ),양혁준 ( Hyuk Jun Yang ),임용수 ( Yong Su Lim ),조진성 ( Jin Seong Cho ),김진주 ( Jin Joo Kim ),박원빈 ( Won Bin Park ),장재호 ( Jae Ho Jang ),이근 ( Gun Lee ) 대한외상학회 2014 大韓外傷學會誌 Vol.27 No.3

Purpose: Trauma is one of the most common causes of death for children, and identifying severely injured children quickly in an overcrowded emergency room (ER) is difficult. Therefore, severe injury must be prevented, and the severity of injuries in children must be determined easily from their general characteristics and pre-hospital factors. Methods: Injured children younger than 15 years of age who visited the ER from June 2011 to May 2013 were enrolled. According to the revised trauma score (RTS) of the patients, the study population was divided in two groups, a severe group (RTS<7) and a mild group (RTS≥7). The general characteristics and the pre-hospital factors were compared between the two groups. Results: Six hundred seventy-three children were enrolled, their mean age was 8.03 (±4.45) years, and 476 (70.73%) patients were male. Of these patients, 22 patients (3.27%) were in the severe group, and 651 patients (96.73%) were in the mild group. Fewer males were in the severe group than in the mild group (50.00% vs. 71.43%, p=0.030), and children in the severe group were younger than children in the mild group (3.50 vs. 8.00 years, p=0.049). In the severe group, toddlers (54.55%, p=0.036) were the most common age group. Severe injuries occurred more often in spring (32.81%) and summer (54.56%) than in autumn (9.09%) and winter (4.55%) (p=0.026). The most common places of injury in the severe group were roads (50.00%, p=0.009), and the most common mechanisms of injury in the severe group were traffic accidents (50.00%), followed by falls (31.82%) (p=0.011). Most severely injured children were transferred by ambulance (72.73%, p=0.000). Conclusion: The results of this study may be helpful for identifying severely injured children quickly in the field and the ER. To prevent severe pediatric injuries, precautions and policies based on these results should be established. [ J Trauma Inj 2014;27:43-49 ]