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이상평,권장구,강병직,황성규,함인석,박연묵,김승래 대한신경외과학회 1990 Journal of Korean neurosurgical society Vol.19 No.7
Among 202 aneurysmal patients with SAH who were admitted to Kyungpook National University Hospital from Jan. 1984 through Jan. 1988, the incidence of ventricular dilatation confirmed by postoperative follow-up brain CT scannings was 32.2%(65 cases). And 33 cases(19.3%) was in mild ventricular dilatation, 9 cases(4.5%) was in moderate and 23cases(11.4%) in severe who needed the shunting procedure were analysed. The incidence of ventricular dilatation to the site of aneurysm was highest in A-com A. aneurysm(42.2%), followed by P-com A. aneurysm(36.4%) and MCA aneurysm(11.3%). The incidence of ventricular dilatation and the need for shunting was higher in multiple bleeding patients than the single. The good risk patients had meaningfully lower incidence of ventricular dilatation than the poor risk group. In the delayed surgical group showed significantly more numbers of ventricular dilatation needing the shunt than the cases in early group.
A Study on the Development of Rotary Ultrasonic Machining Spindle
이상평,김민엽,박종권,고태조 한국기계가공학회 2015 한국기계가공학회지 Vol.14 No.4
Ultrasonic machining (USM) has been considered a new, cutting-edge technology that presents no heating or electrochemical effects, with low surface damage and small residual stresses on brittle workpieces. However, nowadays, many researchers are paying careful attention to the disadvantages of USM, such as low productivity and tool wear. On the other hand, in this study, a high-performance rotary ultrasonic drilling (RUD) spindle is designed and assembled. In this system, the core technology is the design of an ultrasonic vibration horn for the spindle using finite element analysis (FEA). The maximum spindle speed of RUM is 9,600 rpm, and the highest harmonic displacement is 5.4 μm noted at the frequency of 40 kHz. Through various drilling experiments on glass workpieces using a CVD diamond-coated drill, the cutting force and cracking of the hole entrance and exit side in the glass have been greatly reduced by this system.
이상평,박신영 대한임상검사과학회 2014 대한임상검사과학회지(KJCLS) Vol.46 No.1
Metabolic syndrome such as, hypertension, diabetes, obesity, dyslipidemia etc are well known lifestyle diseases which threaten a health state. The purpose of this study is to evaluate antioxidant status and reactive oxygen species (ROS) in various stressful conditions. A group of persons (n=28) were enrolled in this study and stress status was evaluated using questionnaire of psychological well-being index (PWI-SF) and hematologic analysis of free oxygen radical defense (FORD), free oxygen radical test (FORT), lipid profiles and serum cortisol level. Analysis was done according to stress index, BMI status and overtime working. Blood samples from diabetics were used for control. Results are as in followings: Higher PWI-SF group showed higher FORT. Obese persons with BMI> 25 kg/m2 showed statistically lower FORD (p<0.05) and higher FORT level (p<0.01). When compare with diabetics, an overweight group had similar levels in FORD and FORT while a normal body weight group showed quite different with diabetics in FORD (p<0.001). Higher ROS group has higher triglyceride, CRP and insulin levels but lower in FORD and HDL-cholesterol levels. Overtime working at night showed no meaningful result against our expectations. These results suggested that obesity showed most unfavorable correlations in an antioxidant status in various situations.
이상평,권장구,황성규,함인석,박연묵,김승래,이상흔,박준식,조태환 대한신경외과학회 1991 Journal of Korean neurosurgical society Vol.20 No.6
The technique and results of infratemporal fossa approach of jugular foramen neuroma and clivus chordoma are presented. The infratemporal fossa approach allowed radical removal of jugualr foramen neuroma and effective palliative removal of clivus chordoma. The basic features of infratemporal fossa approach are permanent anterior displacement of the facial verve, subtotal petrosectomy and obliteration of the middle ear cleft.
임신 2기 계류유산환자에서 경관확장 자궁소파수술시 발생한 양수색전증
이상화,김봉일,노운석,조성경,백승희,이상평 대한마취과학회 1997 Korean Journal of Anesthesiology Vol.33 No.4
Amniotic fluid embolism(AFE) is a rare but devasting obstetric emergency. We experienced a case of AFE during dilatation and curettage(D&C) in a 15 2/7 weeks pregnant woman, age 30, who was diagnosed as having a missed abortion. Sudden rapid hypoxemia, low SpO2, hypotension, low PETCO2, high CVP, and tachycardia, right axis deviation and right bundle branch block in 12 leads ECG were developed during D&C under general anesthesia, and signs of disseminated intravascular coagulation(DIC) followed after the operation, which are consistent with the findings of AFE. Even though there was no definite pathologic and radiologic confirmation of AFE, laboratory findings showed 100 times higher level of α-fetoprotein in her central venous blood than same weeks of missed abortion woman's blood. Though it is rare, the anesthesiologist should always suspect the possibility of AFE, when the patient shows an unexplained collapse, cyanosis, low PETCO2, high CVP, low SpO2, ECG change and DIC during any kind of obstetric proceure. (Korean J Anesthesiol 1997; 33: 778∼783)
해운기업의 내부마케팅이 서비스품질과 고객만족에 미치는 영향
이상평(Sang-Pyeong Lee),신한원(Han-Won Shin),박성건(Sung-Keon Park) 한국항만경제학회 2010 韓國港灣經濟學會誌 Vol.26 No.4
이 연구에서는 갈수록 치열해지는 해운시장에서 차별적 전략의 일환으로 기업내부의 종사원을 내부고객으로 인식하고 외부고객만족을 위해 내부마케팅 실행요인을 강화함으로써 서비스품질을 향상시키고 이에 따라 고객만족도 향상될 것이라는 실증분석을 하기 위하여 서비스 제공자인 해운기업과 서비스 수요자인 화주기업을 대상으로 선행연구들을 통한 문헌연구와 실증연구를 병행하였다. 문헌연구는 내부마케팅, 서비스품질, 고객만족 등에 관한 선행연구들을 중심으로 수행되었으며, 이를 토대로 해운기업에 적합한 개념들을 도출하고 측정도구를 개발하였다. 연구가설을 검정하기 위해 해운기업과 국제물류주선업체의 종사원을 대상으로 설문조사를 실시하여 수집된 자료를 SPSS ver.12를 이용하여 각 요인들에 대한 신뢰성 및 타당성을 검정하고 구성개념들 간의 인과관계를 분석하기 위하여 다중회귀분석을 실시하였다. 실증분석 결과 해운기업의 내부마케팅요인 중 교육훈련, 보상시스템, 권한위임은 해운기업 서비스품질에 정(+)의 영향을 미치는 주요한 요인이며, 해운기업의 서비스품질은 고객인 화주의 만족에 정(+)의 영향을 미치는 것으로 나타났다. 또한, 해운기업의 내부마케팅활동은 화주의 만족에 정(+)의 영향을 미치는 것으로 나타났다. 이것은 해운기업의 종사원을 대상으로 업무에 대한 전문적 지식이나 새로운 기술?정보의 습득, 기업의 사명과 전략 및 환경을 이해할 수 있는 지속적이고 반복적인 교육훈련의 기회를 제공하며, 또한 우수한 인력관리와 기업을 위해서 바람직한 행동을 강화하고 권장하려는 동기부여를 위한 인센티브를 제공하고, 보다 고객지향적인 의사결정을 신속하게 할 수 있도록 재량권이 부여됨으로써 종사원 자신들의 직무에 대한 전반적인 만족을 증대시켜 한층 고객지향적인 사고와 태도를 형성하게 된다는 것을 보여준다. 그리고 화주가 지각하는 해운기업의 제반 서비스품질에도 긍정적인 영향을 미치며 나아가 해운기업의 고객만족도를 증가시킨다는 사실을 의미한다. This purpose of this study is to analyze the causal relation among constituent concepts and verify the relation among internal marketing, service quality and customer satisfaction in shipping companies. To achieve the goal of this study, the author studied literatures on internal marketing, service quality and customer satisfaction, and carried out a survey targeting people working for shipping companies and international logistics freight forwarders to make an empirical analysis. The results are as follows. It was confirmed that education and training, reward system, empowerment among internal marketing elements of a shipping company have a positive effect on the service quality and customer satisfaction of the shipping company, and the service quality of a shipping company also has a positive effect on customer satisfaction. As it can be known from these results, it would be necessary to concentrate on internal marketing of a shipping company in order to increase service quality and customer satisfaction.