마이크로파를 이용한 SHS 방법에 의한 분말의 산화-환원반응

김석범 한국결정학회 1998 韓國結晶學會誌 Vol.9 No.1

A reduction/oxidation reaction between A1 metal powder and SiO2 powder was performed by Self-propagating High-temperature Synthesis (SHS) reaction induced by microwave energy to produce a composite of Al2O3 and Si powders by using a 2.45 GHz kitchen model microwave oven. A Microwave Hybrid Heating(MHH) method was applied by using SiC powders as a suscepting material to raise the temperature of the disk samples and the heat increase rate of over 100℃/min were obtained before the reaction. The reaction started around 850℃ and the heat increase rate jumped to over 200℃/min after the reaction took place.

농촌 노인들의 인지기능장애와 일상생활 활동도와의 관련성

김석범,강복수,김상규,Kim, Seok-Beom,Kang, Pock-Soo,Kim, Sang-Kyu 대한예방의학회 1999 예방의학회지 Vol.32 No.1

Objectives. The purpose of this investigation was to study the correlation between cognitive impairment and activities of daily living(ADL) In the elderly of rural area. Methods. The study population consisted of 210 elderly people aged 65 years and older, living in a district of Kyongju City. The cognitive impairment was measured with the Korean version of mini-mental state examination(MMSE-K) and newly constructed the Korean version of mini-mental state examination (K-MMSE). Bristol activities of dally living scale developed specifically to be used with people with dementia was used to measure ADL Results. The mean scores of both MMSE-K and K-MMSE were significantly different by sex groups and by .age groups, respectively(p<0.05). The mean scores of ADL were significantly different by age groups(p<0.01) not by sex groups. Among the 4 components of ADL(instrumental activities of daily living(IADL), self care, orientation, and mobility), the mean score of the orientation was significantly higher in men(p<0.01); and IADL, orientation and mobility components were significantly different by age groups(p<0.01). ADL correlated well with MMSE-K (r=0.54) and K-MMSE(r=0.52) and showed higher correlation in female (r=0.73, 0.71) than male(r=0.27, 0.29). IADL and orientation showed significant correlation with MMSE-K(r=0.52, 0.62) and K-MMSE(r=0.50, 0.63), respectively(p<0.01). Conclusions. In developing and establishing a care model for people with dementia in the community, both cognitive impairment and the activities of daily living(ADL) need to be considered.

학교문화예술교육 현황 및 개선방안 연구 -영화교육을 중심으로-

김석범 한국영상제작기술학회 2018 영상기술연구 Vol.- No.29

In the era of the Fourth Industrial Revolution, human creativity became more important than any other element. As the functions and roles of arts and culture education gradually increase as a national growth engine in response to the rapidly changing demands of the times, the government begins full-scale arts and culture education throughout the country with the aim of cultivating creative talents. Especially, as the arts and culture education is carried out in the school which is the public education field, it has a positive educational effect that can not be obtained from the traditional education. In particular, arts and culture education, which is distinguished from traditional art education, has achieved a little visible result through rapid growth in a long time. However, arts and culture education in school, which started as part of the national policy project, shows clear limitations and problems in terms of quality despite the rapid growth in quantitative support. In this study, we will discuss the problems and improvement plans of arts and culture education in school over the past 10 years based on the current status of film education.

GaAlAs 레이저 조사가 근타박상이 유발된 흰쥐 골격근내 혈관내피성장인자 발현에 미치는 영향

김석범,김진상,Kim Souk-Boum,Kim Jin-Sang 대한물리치료학회 2003 대한물리치료학회지 Vol.15 No.3

Skeletal muscle regeneration is a vital process for various muscle myopathies and muscular adaptation to physiological overload. Angiogenesis is the key event in the process of muscle regeneration, and vascular endothelial growth factor(VEGF) plays an important role in it. The purpose of this study was to evaluate the effect of GaAlAs(830nm) laser and immunoreactivity of VEGF on angiogenesis after muscle contusion injury. Muscle contusion injury was induced in the triceps surae muscle by dropping a metal bead(31.4g). GaAlAs laser irradiation(power 20 mW, frequency 2000 Hz, treatment time 15 min) was applied directly to the skin of injured muscle daily for seven days. The experimental group I was irradiated immediately by laser after injury, whereas the experimental group II was irradiated after 1 day of injury. The control group was non-irradiated. The results of this study were as follows. 1. In morphological observation, there were no significant changes in experimental and control groups for 7 days. At 3 days, however, the splited muscle fibers were observed in experimental groups, and the muscle atrophy and granular tissue viewed at 7 days in control group. 2. The VEGF was expressed in muscle fiber that located in the interspace between gastrocnemius and soleus muscles. As the time coursed, the immunoreactivity of VEGF also seemed to be strong in the individual muscle fibers. 3. The experimental group I & II showed higher immunoreactivity of VEGF than control group(p<0.05). Then, the experimental group I showed higher than group II especially(p<0.05). These data suggest GaAlAs semiconduct diode laser irradiation(830nm) enhanced angiogenesis in the skeletal muscle induced contusion injury, and immediate laser irradiation after injury promoted the angiogenesis greatly than after 1 day of injury.

지역의료보험 실시전후 도시 일부주민의 의료이용양상 비교 - 소득 계층별 의료필요충족도와 주민 만족도를 중심으로 -

김석범,강복수,Kim, Seok-Beom,Kang, Pock-Soo 대한예방의학회 1994 예방의학회지 Vol.27 No.1

The effects of regional medical insurance on utilization of medical care in urban population was examined in this study. The data was collected in a 2-year follow-up household survey conducted at Taegu city before and after implementation of the regional medical insurance. The study population was divided into 2 groups. Cohort I was the uninsured in 1989 and cohort II was the insured in 1989. After the coverage of medical insurance, physician visit rate per 1,000 population, use-disability ratio and use-restricted activity ratio in cohort I were increased compared to cohort II in both of acute and chronically ill people. The use-disability ratio and use-restricted activity ratio of the insured poor were lower than those of the insured nonpoor in both of cohort I and cohort II. The major reasons for pharmacy use were accessibility and affordability before the coverage of medical insurance in cohort I, however, after the coverage of medical insurance, the important reason was accessibility rather than affordability. In logistic regression analysis of physician visit, the significant independent variables were acute illness episode (+), chronic illness episode (+) and income (+) in both of cohort I and cohort II. In cohort I, after the coverage of medical insurance, more people replied that the medical cost of hospital and clinic was reasonable. The people who covered by the regional medical insurance were more dissatisfied with the imposed premium than those who covered by other types of medical insurance in both of cohort I and cohort II. More people in cohort II than cohort I were dissatisfied with the services from hospitals and clinics after implementation of the regional medical insurance. In conclusion. after the coverage of medical insurance, the gap between the poor and the nonpoor still exists in terms of medical care utilization.

근로장려세제(EITC)에 관한 연구

김석범 한국회계정보학회 2008 회계정보연구 Vol.26 No.4

This study presents the items to be considered for the growth of Korean EITC, as it studied American EITC, which had started 30 years before. The details are as follows. Firstly, the income standard that restricts 17million (KRW) of total income as the qualification to apply the bounty on working, should be increased. Besides, from the property standards of the qualification, the regulation that only accept homeless family should be abolished and the property amount standard of 100 million need to be increased. Secondly, the standard of the bounty on working need to be graded according to the number of support child, because the existing EITC gives the same standard to all family who had support children more than two. In addition to, the pay system need to be adjusted to consider husband and wife both working in the long term. Thirdly, Korean government should tighten the punishment of unlawful applicants like American does and build up the present condition investigation about place of business, confirmation of applicant, and a business support system with four insurance executive organs to expose unlawful receiver. Lastly, EITC needs to be harmonized with the revisions related to the earned income deduction of the Income Tax Law, the special deduction of income deduction, and the tax rates stage. 우리나라에서도 2008년 1월 1일부터 근로빈곤층에 대한 소득지원과 저소득 근로능력층에 대한 근로유인의 제고를 목적으로 근로장려세제가 시행되었다. 본 연구는 우리나라보다 30여년 먼저 시행한 미국의 현행 EITC를 우리나라의 EITC와 비교․검토하여, 향후 우리나라 EITC의 발전을 위해 고려되어야 할 점들을 살펴보았다. 그 내용을 요약하면 다음과 같다. 첫째, 현행 세법상 근로장려금의 신청자격으로서 ‘부부의 연간 총소득의 합계액이 1천700만원 미만일 것’으로 제한하는 소득기준을 상향 조정해야 한다. 그리고 신청자격의 재산기준들 중에서 무주택 가구로 제한하는 규정은 폐지하고 1억의 재산가액기준을 상향 조정해야 한다. 둘째, 현행 근로장려세제에서는 부양아동 2인 이상인 가구에 대해서 동일한 기준을 적용하고 있다. 부양아동 수에 따라 근로장려금의 수준을 차등화할 필요가 있다. 또한 맞벌이 부부를 고려한 급여체계가 이루어지지 않고 있어 장기적으로 맞벌이 부부에 대한 급여체계의 차등화가 고려되어야 한다. 셋째, 정부는 부정신청자에 대한 제재를 미국의 수준으로 강화를 하고 부정수급자를 적발하기 위하여 사업장의 현황조사 및 점검, 신청자에 대한 확인조사, 4대 보험집행기관 등과 업무협조체계를 구축해야 한다. 넷째, 근로장려세제가 도입됨에 따라 소득세법상 근로소득공제, 소득공제 중 특별공제, 세율단계 등의 개정이 근로장려세제와 조화를 이루는 것이 필요하다.

치안서비스의 규범적 성과측정 가능성에 대한 소고

김석범 경찰대학교 2007 경찰학연구 Vol.7 No.3

The central theme of this article is that current police performance measures are largely inadequate for capturing many dimensions of policing. Over the past years adopting business measurement model such as BSC (Balanced Scorecard) in policing is a main concern. As a result managerial, technical approach are focused. But to develop a standard for assessing the performance of an policing as “good” or “bad”, “improving” or “deteriorating” is to make a normative claim rather than managerial, technical claim. In this paper, i present a ‘Moore & Braga's normative framework’ that argues for a way to value the performance of police agencies. That framework is to make a distinction between the “practical” values pursued by the police on one hand, and the “principled” values pursued by the police on the other. And then the framework is to distinguish between the social position of a “citizen” on one hand and a “client” on the other. Based on these distinctions. It presents “valuable dimensions of police performance”. Drawing upon ideas from ‘Moore & Braga’s normative framework’, it is proposed that a more normative approach to police performance offers the potential for the development of more meaningful forms of evaluation.

Disulfiram유발 정신증 1례

김석범,이정태,김광수 한국의학사 1993 診斷과治療 Vol.13 No.1

K겹 교차검증 및 심층신경망을 활용한 자동차 시트의 BSR 소음 지표 예측 연구

김석범,남재현,고동신 한국자동차공학회 2024 한국 자동차공학회논문집 Vol.32 No.1

This study proposes a method for predicting Loudness N10, a quantitative indicator for evaluating BSR noise in automotive seats. The approach utilizes k-fold cross-validation and deep neural networks(DNNs) to predict the indicator without expensive equipment or specific software. Experimental data on acoustic and sound quality physical quantities were obtained, with significant factors such as sound pressure level and variation intensity identified. While linear and nonlinear regression equations using k-fold cross-validation resulted in large prediction errors, the DNN-based prediction model demonstrated lower errors. The integration of k-fold cross-validation helps maintain performance in limited environments. In summary, the proposed method enables accurate prediction of Loudness N10 based on acoustic and sound quality parameters, even in resource-constrained settings.

원자력 발전 원자로 용기의 열손실 설계인자에 관한 연구

김석범,박종호 한국마린엔지니어링학회 2004 한국마린엔지니어링학회지 Vol.28 No.5

The design parameter of the heat loss for the pressurized water reactor has been studied. The heat loss from the reactor vessel through the air gap, insulation are analysed by using the computational fluid dynamics code, FLUENT. Parametric study has been performed on the air gap width between the reactor vessel wall and the inner surface of the insulation, and on the insulation thickness. Also evaluated is the performance degradation due to the chimney effect due to gaps left between the panels during the installation of the insulation system. From the analysis results, the optimal with of air gap and insulation thickness and the value of heat loss are obtained. The results show how the heat loss varies with the air gap width and insulation thickness. The temperature and the velocity distributions are also presented. From the results of the evaluation, the optimal air gap width and the optimal insulation thickness are obtained. As the difference between the predicted heat loss and measured heat loss from the reactor vessel is construed primarily as losses due to chimney effect, the contribution of the chimney effect to the total heat loss is quantitatively indicated.