기존 OS 핑거프린팅 기법의 IoT 환경에 적용 가능성에 관한 연구

장대일,이은별,전지수,김환국 한국지능정보시스템학회 2016 한국지능정보시스템학회 학술대회논문집 Vol.2016 No.8

가트너에서는 IoT 디바이스가 2020년까지 250억대로 증가할 것으로 예상하고 있고 이때 생성되는 데이터 량은 4조 기가바이트에 달할 것으로 예상하고 있다. 많은 IoT 디바이스를 각각 효율적으로 관리하기 위해서 디바이스를 식별할 수 있는 정보가 필요하다. 현재 라우터나 게이트웨이 같은 장비는 디바이스를 식별할 핑거프린트 정보가 있지만, IoT 환경에서 사용되는 IoT 허브, 홈 게이트웨이 같은 IoT 디바이스 경우에는 아직 핑거프린트를 생성하기 위한 연구가 없다. 따라서 이러한 IoT 디바이스의 효율적인 관리를 위해 디바이스를 식별하기 위한 핑거프린트 정보를 생성하기 위한 연구가 필요하다. 본 논문에서는 Shodan을 통해서 어떤 IoT 디바이스가 있는지 확인 한 후, 기존 핑거프린트 생성 방법 중 하나인 OS 핑거프린트의 IoT 환경에서 적용가능성에 대한 실험을 수행한다.

사회복지사의 노후준비에 관한 연구 : 경남지역 사회복지기관을 중심으로

장대일 培材大學校 人文科學硏究所 2018 人文論叢 Vol.35 No.-

사회복지사의 노후준비에 관한 선행연구를 보면 아직 그다지 활발하게 논의가 이루어지고 있지는 않지만, 사회복지사의 노후준비 인식과 실태에 관한 몇몇 시사적인 연구결과들이 제시되어 있어 주목할 만하다. 가령, 사회복지사들의 노후준비 인식과 노후준비 실태를 경제적, 정서적, 신체적 요인을 중심으로 조사한 결과를 보면 노후준비 인식은 매우 높게 나타났지만 노후준비 실태는 낮다고 하였다(김정표, 2005). 또한, 노후준비 인식과 노후준비 실태에 영향을 미치는 결정요인을 분석한 결과 혼인 상태, 학력, 직종과 직급, 이직, 퇴직금 제도가 노후준비에 큰 영향을 미치고 있다고 하였다(이춘희, 2008). 본 연구는 이러한 선행연구의 연장선상에서 사회복지사의 인구사회학적 특성과 직업적 환경이 사회복지사의 노후준비 인식과 실태에 어떠한 영향을 미치는지를 체계적으로 규명함으로써 사회복지사의 안정적인 노후설계를 위한 기초자료를 제공하고자 한다. The purpose of this study is to investigate the effect of social demographic characteristics and occupational environment on social workers' perception and behavior for preparing their retirement. The perception and behavior for preparing retirement consist of three sub–dimensions(Economic, emotional, and physical areas) respectively. Altimately, this study will suggests the policy and practical implications of social workers' retirement design support. For this study, we conducted a structured questionnaire survey of 289 social workers working in social welfare facilities in Gyeongsang nam-do. Data analysis was performed through SPSS for Windows ver.22.0 program. As a concrete analysis method, descriptive statistics, reliability test, T-test, ANOVA analysis, post analysis, and multiple regression analysis were used. The results of this study are summarized as follows. First, the level of social workers' perception for preparing retirement. was average at 3.2392(mean) In terms of three sub-dimensions of retirement preparation recognition, 'Economic perception for preparing retirement' was the highest at 3.2725(mean), followed by 'Emotional perception for preparing retirement' at 3.2307(mean) and 'Physical perception for preparing retirement' at 3.1592(mean). Seconds, the level of social workers' behavior for preparing retirement. was average at 3.1070(mean) In terms of three sub-dimensions of retirement preparation recognition, 'Emotional behavior for preparing retirement' was the highest at 3.6301(mean), followed by 'Physica behavior for preparing retirement' at 2.9602(mean) and 'Economic behavior for preparing retirement' at 2.7307(mean). Third, There was equally group differences between the perception and behavior or preparing retirement. According to the social demographic characteristics(age, final educational background, marital status, and the type of household) have differences in the case of the perception and behavior for preparing retirement. Also, the perception and behavior for preparing retirement were different according to occupational environment such as employment type, work experience, position type and total income. Fourth, multiple regression analysis was conducted to examine factors affecting The perception and behavior for preparing retirement. The results of this study show that employment status, working experience, and facility sector have an influence on the overall perception for preparing retirement. Also, the age, spouse status, employment type, work experience, type of facility have an influence on the overall behavior for preparing retirement. Based on the above results, the suggestions for the preparation of social workers' retirement are as follows. First, Economic perception for preparing retirement was the highest among the perception for preparing retirement. However, Economic behavior for preparing retirement is the lowest level among the behavior for preparing retirement. This means that social workers have difficulties in preparing for economic deprivation and are not getting enough preparedness. Above all, active intervention and efforts of the government and local governments are needed for social workers who can not prepare for economic retirement due to low income and salary. Since the current salaries of social workers are low, it seems urgent to find a reasonable plan to increase pay. In addition, it is necessary to strengthen the welfare system such as loan for housing funds and support for living expenses. Seconds, The term, “Health in old age is more important than economic” related the Physical perception for preparing retirement was the highest. However, “I exercise regularly for a healthy life of old age” was relatively low. When asked about the overall aging preparation situation, the most important factor in aging was the question "Living healthy" (34.4%). This means that social workers are at the forefront of health than economics, but they are having difficulty in preparing for their physical aging due to excessive work and poor working conditions. Therefore, the government and social welfare organizations should work together to raise the health status of the social workers and improve the work environment so that they can be interested in the preparation of social workers' old age. Third, It is necessary to establish a systematic and professional design support system for social workers' retirement preparation. In response to the question, "Do you participate in retirement planning counseling or education to prepare for retirement," 214 (74.0%) of the many social workers answered that they did not. This is a very high figure. In addition, 107 respondents (50.0%) answered that they did not know how to receive such education about questions "Why did not receive education for old age"? This is half of the total response. A professional support system should be established to provide systematic and comprehensive support for social workers' stable and successful retirement preparation. In addition, the Korean Association of Social Workers should establish a education program on retirement preparation in social welfare worker education.

韓國에서 分離한 Leptospira의 細菌學的 特性에 관하여

張大一,李淵台 檀國大學校 基礎科學硏究所 1988 論文集 Vol.2 No.-

화학적 수핵분해요법후 발생한 하지마비 1예

장대일,김주한,김명호 대한신경과학회 1986 대한신경과학회지 Vol.4 No.2

중증의 신경학적 증상을 동반하는 급성 경동맥계 허혈성 뇌졸중의 정맥내 rt-PA 혈전용해치료: 뇌졸중 성과에 대한 혈관 재개통의 의의

장대일,윤성상,신원철,정경천 대한신경과학회 2003 대한신경과학회지 Vol.21 No.1

응고이상과 허혈성 뇌졸중

장대일 대한신경과학회 2003 대한신경과학회지 Vol.21 No.4

뇌경색의 응고계 이상

장대일,윤성상,박기정,윤상수,정경천 대한신경과학회 1995 대한신경과학회지 Vol.13 No.2

중추신경계내 재발성 비정상피종성 생식세포종양에서의 종양표지자의 임상적 중요성

장대일,윤성상,정경천 대한신경과학회 1994 대한신경과학회지 Vol.12 No.2

허혈성 뇌졸중 환자에서 난원공개증의 빈도: 경두개초음파 연구

장대일,이미숙,조상희,부선희,정세희,허성혁,윤강욱,안태범,윤성상,정경천 대한신경과학회 2005 대한신경과학회지 Vol.23 No.3

Background: Patent foramen ovale (PFO) is increasingly being recognized in stroke patients. The capability of transcranial Doppler (TCD) to detect a PFO has been established. We studied the frequency of PFO in patients with ischemic stroke. Methods: Eighty-nine patients with ischemic stroke (62 men, mean age: 56.5) consecutively underwent a contrast-enhanced TCD with monitoring of the bilateral middle cerebral arteries (MCA). The contrast solution, which consisted of 8 ml of normal saline, 1 ml of air, and 0.2 ml of patient’s blood, was injected twice during normal breathing and the Valsalva maneuver. High intensity transient signals (HITS) were counted for 30 seconds after the injection. Results: Patent foramen ovale was detected in 19 patients (21%). The mean age was similar in those with (55 years) and those without (57 years) PFO. Patent foramen ovale was more frequent among men (26%) than women (11%). There were no differences in the frequency of PFO among stroke subtypes (large artery atherosclerosis, 18%; small artery occlusion, 27%; cardioembolic, 27%; undetermined cause, 11%). Conclusions: Patent foramen ovale is common in patients with ischemic stroke of all subtypes.

B형 간염바이러스와 관련한 급성 횡단성 척수염 1예

장대일,이창훈,김주한,김명호 대한신경과학회 1986 대한신경과학회지 Vol.4 No.2