휴대용 핵종 분석기의 유용성 평가

김지현(Ji Hyeon Kim),전성진(Seong Jin Jin),제재용(Jae Yong Je) 한국방사선학회 2015 한국방사선학회 학술대회 논문집 Vol.2015 No.춘계

본 연구는 휴대용 핵종분석기를 이용하여 부산지역의 지역별 환경방사선을 측정하여 휴개용 핵종분석기의 유용성을 평가하고자 한다. 측정 대상은 부산의 중심에 위치한 부산진구 소재 송상현 광장을 중심으로 9곳의 환경 방사선을 측정하였다. 측정결과 부산역과 부산대학교를 제외한 대부분의 지역에서 환경방사선은 비슷한 결과를 나탄내었다. 검출된 핵종은241Am, 133Ba, 54Mn등이 검출되었고 핵종분석기에 내장된 핵종정보가 부족하여 알 수 없는 핵종들도 검출되었다. 실험에 사용한 휴대용 핵종분석기는 분해능이 8% 정도로 자연방사성 핵종과 인공방사성 핵종을 핵종별로 정확하게 분석하기 위해서는 제조사의 개선이 필요한 것으로 판단된다. This research aims at measuring the environmental radioactivity at each area of Busan using a potable radio-isotope identification system, and assessing the utility of the potable radio-iosotope identification system. As for the target for measurement, the environmental radioactivities of nine areas centered around Songsanghyeon Square in Jin-gu located in the center of Busan were measured. As the measurement result, the environmental radioactivities were similar in most of the areas except in Busan station and Busan University. The nuclides, such as 241Am, 133Ba, 54Mn and so on, were detected, and some nuclides whose identity was unknown because of lack of information built in the radiation spectrum analyzer were also found. The potable radio-isotope identification system used in the experiment had about 8% of resolving power, so for more precise analysis into the nuclides of natural background radiation and artificial radiation in each type, the manufacturer needs to improve the analyzer.

증권시장에서 판매원 윤리의식의 결정요인

지성구,이감용,윤영진 한국유통정보학회 2001 유통정보학회지 Vol.4 No.1

This research addresses the determinants of salespeople's ethical awareness(SEA) in stock market. The suggested model include several factors such as environmental uncertainty(volatility and diversity), customer orientation, ethical climate and perception of the ethical awareness of supervisor. Some hypotheses that show the relationship between SEA and the factors are suggested. To attain these objective of this research, samples from salespeople were collected. For the analysis of data, reliability test, validity test, correlation analysis, multiple regression analysis and frequency analysis were used with SPSS WIN package. the results show that environmental volatility, customer orientation(3 factor, 1 factor), organization's ethical climate, affect SEA, however, environmental diversity and customer orientation(2 factor, 4 factor) don't work. And, as hypothesized, SEA generally had positive impacts on customer relationship quality(customer's trust and satisfaction).

설계시공일괄입찰 사전자격심사의 안전관리수준 적용방안

지성민,서용칠,구교진,현창택 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2

In terms of the Safety, a risk of accident in construction industry is the most dangerous thing in any other industries. So, there have been many studies to improve the safety performance of construction projects. But, the most of them were dealt with controls in the job site and the contractor. For these reasons, the purpose of this study(Construction Safety Management) is two-part. : One is showing the basic items composed of prequalification in Construction Safety Management, and the other is improving the selection method to meet the owner's needs including a Contractor's Safety Management Performance.

다물체 동역학 모델을 이용한 밸런싱 방법에 관한 연구

지창진,유태규,홍성욱 한국공작기계학회 2008 한국공작기계학회 춘계학술대회논문집 Vol.2008 No.-

Aysmmetric rotors are often employed in a variety of machines. A large amount of asymmetry in rotors makes the conventional balancing schemes very difficult in implementation. In this paper, a balancing scheme which systematically adjusts principal inertial axes by adding balancing weights is applied. A multi-body dynamic model using commercial codes, ADAMS and SIMULINK, is developed to prove the effect of balancing in a heavily unbalanced rotor.

소매점의 고객애호도 유형에 따른 서비스 포지셔닝 전략

지성구,윤영진,이감용 한국유통정보학회 2000 유통정보학회지 Vol.3 No.1

In this research, we investigate an effective service positioning strategy in a department store. In order to identify the effective positioning strategy of department store, we find out and develop the service quality raters of department store. And also we clarify the customer's loyalty types, using the Four types of customer's loyalty are change quality raters and merchandise value. Especially, relationships between customer and provider, that is empathy or closeness, is the most important factor to identify the customer's hypothetical types.

경식도 심초음파도의 Direct Planimetry를 이용하여 측정한 대동맥판 면적의 심박출량 및 좌심실 구출율의 변화에 따른 정확도

진승원,김종진,김희열,박지원,전두수,윤호중,박준철,노태호,채장성,김재형,홍순조,최규보 대한순환기학회 2000 Korean Circulation Journal Vol.30 No.8

M-Commerce에서 Secure Card 기반의 결제 프로토콜 설계

김성열,조성지,유성진,배용근 조선대학교 전자정보통신연구소 2002 電子情報通信硏究所論文誌 Vol.5 No.2

In order to provide a reliable M-Commerce, a payment solution with security functions should be required. User's mobile terminals used in M-Commerce services are diversifying to cellular phone, PDA, Smart phone etc. Among them, integration of PDA's interface and mobile connection overcomes the weak point of existing cellular phone depending on information via the internet. In this paper, the Secure Card based protocol for a credit card transaction on PDA using ECC is presented. Secure Card module on this protocol encrypts user's information such as private information, delivery information and credit card information and stores it on PDA in order to free from inputting information whenever it is used. This scheme also offers security services on M-Commerce including authentication, confidentiality, integration, non-repudiation and so on.

수정진동자를 이용한 2가이온의 전기화학적 특성 분석

송성훈,김종민,박지선,손진언,김영한,장상목 동아대학교 공과대학부설 생산기술연구소 1998 生産技術硏究所硏究論文集 Vol.3 No.2

This paper shows eletrochemical extraction property changes of dyed cations by the various eletrochemical conditions using quartz crystal technique. The quantitative and qualitative changes of electrode surface was monitored measuring oscillation parameters of quartz crystal. The results suggest that the eletrochemical extraction of cation is influenced by the various factors such as ionic size, ionic intensity and tendency of ionization.

정신분열증 환자에서 주관적 음성증상경험의 임상적 의의

김지웅,김찬형,구민성,손석한,박진철,최문종,이은철,윤도준,이홍식 대한신경정신의학회 1999 신경정신의학 Vol.38 No.1

연구목적 : 현재까지 정신분열증의 음성증상평가는 주로 객관적인 평가에만 의존해왔기 때문에, 환자들이 주관적으로 직접 경험하는 음성증상의 평가는 경시된 경향이 있었다. 그러나 실제 많은 정신분열증 환자들은 음성증상을 자가하고 있다. 특히, 개관적인 양성 및 음성증상이 관찰되지 않는 경우에도 환자 본인은 음성증상으로 괴로워한다는 이전의 연구보고들이 있었다. 따라서 저자들은 주관적인 음성증상경험과 개관적인 양성증상 및 음성 증상, 우울증상, 불안증상, 추세외로증상과의 상관성을 알아봄으로써 정신분열증의 정신병리에 있어 주관적 음성증상의 존재를 규명하고, 정신분열증 정신병리의 발생기전을 유추해보며 이차적 음성증상과의 관계를 규명하고자 하였으며. 이러한 연구가 정신분열증 정신병리를 이해하는데 도움을 줄 수 있을 뿐 아니라 환자를 공감적으로 이해하는데 도움을 줄 수 있을 것으로 생각되어 본 연구를 시행하였다. 방 법 : DSM-Ⅳ 진단기준의 정신분열증 진단기준에 해당하는 환자를 대상으로 하였다. 주관적인 음성증상의 평가를 위해서 Scale for the Subjective Experience of Negative Symptoms : Korean version(KSENS)을 이용하였고, 개관적인 정신분열증 정신병리의 평가는 Positive and Negative Syndrome Scale(PNASS)를 이용하였다. 우울증상, 불안증상, 추세외로증상의 평가를 위해서 각각 Hamilton Rating Scale for Depression(HAM-D), Hamilton Rating Scale for Anxiety(HAM-A), Extrapyramidal Symptoms Rating Scale(ESRS)을 이용하였다. 각 정신병리척도 점수간의 상관성은 Spearman 상관계수를 이용하여 분석하였다. 결 과 : K-SENS 24항목 중에서 환자가 이를 불편한 것으로 경험하고 있는 항목의 비율과 PANSS 양성척도점수 사이에는 유의한 상관점이 있었으며 (r=-0.40, p〈0.05), 양성증상 중에서도 특히 과대성(r=-0.46, p〈0.05), 의심/피해(r=-0.34, p〈0.05), 적개심(r=-0.52, p〈0.05) 등의 증상과 유의한 상관관계를 보였다. K-SENS 24 항목 중에서 환자가 이를 불편한 것으로 경험하고 있는 항목의 비율과 PANSS 전체점수(r=-0.25, p〉0.05), PANSS 음성척도점수(r=-0.20, p〉0.05), PANSS 일반정신병리척도(r=-0.08, p〉0.05),와는 각각 유의한 상관성이 없었다. K-SENS 24항목 중에서 환자가 이를 불편한 것으로 경험하고 있는 항목의 비율과 HAM-D 점수(r=-0.01, p〉0.05), HAM-A 점수(r=-0.11, p〉0.05), ESRS 총점(r=0.34, p〉0.05)은 각각 유의한 상관성이 없었다. 결 론 : 본 연구결과에서, 정신분열증 환자들이 불편한 것으로 경험하는 주관적 음성증상과 과대성, 의심/피해, 적개심 같은 양성증상은 역상관관계가 있었으며, 이러한 결과를 바탕으로 양성증상이 주관적으로 불편하게 느끼는 음성증상에 대한 가능성과, 혹은 양성증상이 심할 경우, 이에 압도되어 음성증상을 주관적으로 느끼지 못할 수 있다는 가능성이 시사되었으며, 향후 종적인 연구를 통해 이를 규명해 볼 필요성이 제시되었다. 주관적인 음성증상경험과 우울증상, 불안증상, 추세외로 증상과는 상관성이 없는 것으로 나타나서 이들 증상과는 독립적인 증상임을 시사한다. Objective : Since the evaluation of negative symptoms has depended on the clinician's objective observation, the patients subjective experience of negative symptoms has been neglected. However, in fact, a lot of patients are aware of their negative symptoms. There are several reported suggesting that patients suffer from the subjective experiences of their deficit symptoms, even though the objective positive and negative symptoms cannot be observed. Under these circumstances, we have attempted this study with the idea that it would be helpful in understanding the psychopathology of schizophrenia. Also it would help clarifying the relationship between subjective experience of negative symptoms and objectives positive and negative symptoms, depression anxiety symptoms, and extrapyramidal symptoms. Method : All the 37 patients satisfied the diagnostic criteria of DSM-Ⅵ for schizophrenia. The subjective experiences of negative symptoms were evaluated using Scale for the Subjective Experience of Negative Symptoms : Korean version(KSENS), and for the depression, anxiety, extrapyramidal symptoms, we used Hamilton Rating Scale for Depression(HAM-D), Hamilton Rating Scale for Anxiety(HAM-A), and Extrapyramidal Symptoms Rating Scale(ESRS). The correlation between each psychopathology was tested by calculating Spearman correlation coefficient. Results : There was a significant correlation between the ratio of items experienced as uncomfortable symptoms among 24 items of K-SENS, and the score of PANSS positive subscale(γ=-0.40, p〈0.05), Among the positive symptoms, grandiosity(γ=-0.46, p〈0.05), suspiciousnes/persecution(γ=-0.34, p〈0.05), and hostility(γ=-0.52, p〈0.05) showed a significant correlation with the ratio of items experienced as uncomfortable symptoms among 24 items of K-SENS. There was no significant correlation between the ratio of items experienced as uncomfortable symptoms among 24 items of K-SENS, and PANSS total score(γ=-0.25, p〉0.05), or negative subscale score(γ=-0.20, p〉0.05), or general psychology subscale score(γ=-0.08, p〉0.05), respectively. There was no significant correlation between ratio of items experienced as uncomfortable symptoms among 24 items of K-SENS, and HAM-D(γ=-0.01, p〉0.05), or HAM-A(γ=-0.11, p〉0.05), ESRS(γ=0.34, p〉0.05), respectively. Conclusion : These revealed that the negative correlation between the subjective negative symptoms experienced as an uncomfortable ones and the objective symptoms such as grandiosity, suspiciousness/persecution, and hostility. From these results, the possibility that positive symptoms are used as a defense to hide from the negative symptoms because they are overwhelmed by their positive symptoms, is suggested. These results also suggest that subjective experiences of negative symptoms are independent from depression, anxiety and extrapyramidal symptoms.

몬도씨병 (Mondor's Disease) 1예

김지은,김유진,서성준,홍창권 중앙대학교 의과대학 의과학연구소 2003 中央醫大誌 Vol.28 No.2-3

Mondor's disease is a rare disorder characterized by superficial thrombophlebitis and usually develop in thoracoabdominal wall. It has clinical feature of sudden development of painful cordlike structure. The cause is not determined in about 50-60% but it is suggested that trauma, surgery, exercise, drug abuse are often associated. A 44-year-old woman presented cordlike linear tender lesion on right thoracoabdominal wall and histopathologic examination revealed thrombophlebitis with organized thrombus.