주민자치센터 운영활성화 방안 연구 : 부산광역시를 중심으로

박범규 동아대학교 동아시아연구원 2008 동아시아 : 비교와 전망 Vol.7 No.1

본 연구는 부산시의 주민자치센터를 중심으로 운영의 현황을 파악하고, 전담공무원, 주민자치위원, 강사 등의 의식조사를 통하여 요구를 파악하고, 그들의 요구에 맞는 현실적인 주민자치센터 활성화 방안을 제시하고자 한다. 이를 위해 부산시 16개 구·군의 223개 주민자치센터의 당사자인 담당공무원, 주민자치위원, 강사, 이용주민을 대상으로 설문조사를 실시하였다. 분석의 결과 주민자치센터의 재원부족, 프로그램의 세분화 및 전문화의 부족, 주민자치위원회 전문성과 대표성의 한계, 프로그램의 편중성과 같은 문제점들을 가지고 있음을 밝혔다. 이를 해결하기 위한 구체적인 개선방안으로 첫째, 주민들의 자치역량을 제고하기 위해 주민참여형 사업추진, 동호회·동아리 활성화, 지역복지 및 진흥 프로그램의 활성화이며, 둘째, ‘주민자치위원회’의 활성화를 위하여, 자치위원에 대한 역량강화교육 및 주민자치발전협의회 구성, 자치위원 조직 및 구성의 다양화이며, 셋째, 지역자원을 이용한 프로그램의 개발을 위해 공공기관, 각급학교, 복지관, 자원봉사센터, 각 도서관 등과 같은 지역 내 유관시설과의 협력을 위한 지역 네트워크 형성 등을 제시하였다. The purpose of this study is to analyse the operation realities of the resident autonomy centers in Busan Metropolitan City in terms of their roles and operations and to propose some activation plans which help enhancing the role of the residents autonomy centers. The study has adopted survey research methods intended for the diverse members of resident autonomy committee, center using residents, and the officials in charge. The major findings are as follows. First, financial resources of autonomy centers are not sufficient for their efficient operations. Second, programs for self-participating and governing are not sufficient, and professionalization of programs is racking. Third, the representation of committee members of the resident autonomy centers is problematic. This paper suggests some incremental and concrete operation schemes to help strengthening the original roles of resident autonomy centers. Especially, the paper suggests that the centers have to reinforce the functions of members of the resident autonomy board and to construct a cooperative local networks which provide the resident autonomy center with necessary facilities and programs.

5 급 와동의 복합레진 수복 시 발생되는 교두굴곡에 관한 연구

박준규,임범순,이인복 大韓齒科保存學會 2008 Restorative Dentistry & Endodontics Vol.33 No.2

본 연구의 목적은 복합레진의 중합수축파 탄성계수가 5 급 와동 수복시 교두굴곡에 미치는 영향물 평가하기 위함이다. 16개의 발치된 상악 소구치를 평균 크키가 비슷하게 2개의 group으로 분류하였다. 각각의 치아에 5급 와동을 형성하여 유동성 복합레진 (Filtek flow)과 전구치 수복용 hybrid 복합레진 (Z-250)으로 각 group을 충전하였을 때 나타나는 교두굴곡을 측정하였으며 그 후 수복단면을 주사전자현미경 (SEM)으로 관찰하였다. 각 복합레진의 중합수축률과 탄성계수를 측정하여 교두굴곡에 미치는 영향을 고찰하였고 다음과 같은 결과를 얻었다. 1. Piltek flow와 Z-250으로 충전한 group에서 교두굴곡량은 각각 2.18 ± 0.92 ㎛와 2.95 ± 1.13 ㎛으로 나타나 Filtek flow의 평균 교두굴곡량이 더 작은 것으로 측정되었으나 통계적 유의성은 보이지 않았다 (p > 0.05). 2. 수복단면의 SEM 관찰 결과 두 group의 시편 중 각각 2개의 시편에서 와동 내면에 접착이 탈락된 미세간격이 관찰되었다. 3. Filtek flow의 탄성계수값은 7.77 ㎬로 Z-250의 17.43 ㎬에 비해 절반 이상 낮았으며 중합수축률은 4.41%로 Z-250의 2.23%에 비해 더 큰 것으로 나타났다. 4. 교두굴곡에는 복합레진의 중합수축률 뿐만 아니라 수축응력의 발현에 영향을 준는 탄성계수가 복합적으로 작용함을 알 수 있었다. The purpose of this study was to evaluate the effect of the polymerization shrinkage and modulus of elasticity of composites on the cusp deflection of class V restoration in premolars. The sixteen extracted upper premolars were divided into 2 groups with similar size. The amounts of cuspal deflection were measured in Class V cavities restored with a flowable composite (Filtek flow) or a universal hybrid composite (Z-250). The bonded interfaces of the sectioned specimens were observed using a scanning electron microscopy (SEM). The polymerization shrinkage and modulus of elasticity of the composites were measured to find out the effect of physical properties of composite resins on the cuspal deflection. The results were as follows. 1. The amounts of cuspal deflection restored with Filtek flow or Z-250 were 2.18 ± 0.92 ㎛ and 2.95 ± 1.13 ㎛, respectively. Filtek flow showed less cuspal deflection but there was no statistically significant difference (p > 0.05). 2. The two specimens in each group showed gap at the inner portion ofthe cavity. 3. The polymerization shrinkages of Filtek flow and Z-250 were 4.41% and 2.23% respectively, and the flexural modulus of elasticity of cured Filtek flow (7.77 ㎬) was much lower than that of Z-250 (17.43 ㎬). 4. The cuspal deflection depends not only on the polymerization shrinkage but also on the modulus of elasticity of composites.

FEA와 다이나모메터를 이용한 자동차 디스크 브레이크의 열적 거동에 관한 연구

박범식,손영지,장성규,전언찬 한국공작기계학회 2000 한국공작기계학회 추계학술대회논문집 Vol.2000 No.-

While braking cars, a large amount of energy is taken into the brake system in a short period of time. This leads to some problems ; cracking of the disc, non-uniform wear of pad and disc, fade. Thus it is important to measure the contact thermal behaviour precisely between disc and pad. The measurements must be considered to design the brake system. The paper describes methods to analysis the problem of the thermal behavior on the ventilated disc with ANSYS-a program of FEA and a brake dynamometer. According to this way, the paper can present the error between the data by the dynamometer and the results of analysis by ANSYS.

다층구조 신경망에서 비선형 시그모이드 함수의 Taylor 시리즈 근사화에 의한 랜덤잡음의 비선형 변환

정동규,정규범 우석대학교 자연과학연구소 1997 自然科學硏究論文集 Vol.1 No.-

It is well known that multi-layer feedforward neural networks have the capability of function approximation and pattern recognition through a series of weighted sums and nonlinear transformations. The capability of the network depends upon the set of weights and the characteristics of nonlinear processing units. For the estimating output perturbation in the implementation of the network, it is important to understand the nonlinear transformation of the Sigmoid function. In this paper we analyze the nonlinear transformation of the weighted sum error fed to the function. An approximation of the nonlinear Sigmoid function with nth Taylor series is introduced for the analysis of the statistical noise model. Based on the analysis, the error of the Sigmoid output to the weighted-sum error has been derived. It is assumed that the error in the weighted sum are due to perturbations of the weights and that inputs to the network are statistically independent. The results obtained are expressed with the expectation and variance of output error. And it is applicable to both digital and analog feedforward neural networks with a large sized network, a network with many neurons per layer exception for output layer. For the verification of the derived results computer simulations have been performed, resulting in good agreement between the numerical results and the results of the Taylor approximation of the Sigmoid on the wide range of the weighted sum error.

새로운 영전류 스위칭 방식의 PWM 컨버터

정규범 又石大學校 1998 論文集 Vol.20 No.-

Generally, the conventional zero current switched(ZCS) pulse width modulation(PWM) converter operates with forced switching for auxiliary switches. Therefore. the minimizing of switching loss, stress and noise needs to be required. A new ZCS PWM converter of which auxiliary switches always operate with soft switching is proposed in the paper. The advantages of this converter are minimized conduction loss, and stress and noise for high frequency operation. Therefore, the proposed converter can be applicable for the high power density system. The characteristics are verified by the results of simulation.

무궁화 위성 밧데리 모델링

정규범 又石大學校 1995 論文集 Vol.17 No.-

Battery is an energy storage equipment of KOREASAT power subsystem. performance of battery cell depends highly on spacecraft environments and operational conditions. The modeling of battery cell is very important to use batteries efficiently, and analyze the battery power of KOREASAT. Battery cell is modeled, and the battery power of KOREASAT cab be analyzed. The modeling of battery cell use neural algorithm because the buttery cell have few data sets as well as nonlinear characteristics. The maximum DOD(Depth Of Discharge) of the cell with the highest temperature is about 72% at vernal equinox.

표백에 의한 라디에타소나무의 청변 제거

김규혁,김형준,나종범,김재진 한국목재공학회 2003 목재공학 Vol.31 No.1

본 연구는 라디에타소나무 제재목의 균 변색을 제거하기 위한 표백처리의 사용 가능성을 조사하기 위하여 수행하였다. 염소계 표백제인 아염소산나트륨과 차아염소산나트륨은 표백조건(약제농도, 처리온도, 처리시간)의 조절에 따라 만족할만한 변색제거 효과를 얻을 수 있었다. 비염소계 표백제인 과산화수소는 표백조건의 조절만으로는 변색제거가 불가능하였으나 규산나트륨과 수산화나트륨을 활성제로 첨가하는 경우에는 염소계 표백제보다 탁월한 변색제거 효과를 나타내었다. 그러나 활성제 첨가에 따라 재색의 녹색화 문제가 발생하였는데, 앞으로 이러한 문제점을 해결하기 위한 연구가 진행되어야 할 것이다. 또한, 앞으로 본 연구를 통해 개발된 변색제거방법의 현장 적용을 후속 연구도 필요하다고 본다. The feasibility of using bleaching treatments for removing fungal stain was evaluated on heavily stained raiadta pine sapwood. Sodium chlorite and sodium hypochlorite appeared to destain fungal discoloration by providing proper treatment conditions (chemical concentration, treatment temperature, and treatment time), while hydrogen peroxide did not remove fungal stain under the bleaching regimes evaluated. The addition of sodium silicate and sodium hydroxide in the hydrogen peroxide solution as a buffer could remove fungal discoloration completely:; however, the color of wood surface turned faint green after bleaching, thereby reducing the lightness of bleached samples. The results suggest that hydrogen peroxide bleaching could be a feasible method for removing fungal discoloration of stained radiata pine sapwood, although further research is needed to solve the problem of color change after bleaching Also, further tests under field conditions are recommended.

소나무와 잣나무 원목에서 변재변색 발생

김규혁,김재진,나종범 한국목재공학회 2002 목재공학 Vol.30 No.2

본 연구는 동절기 (1월 중순)에 벌채된 후 목재집하장으로 운반되어 야적장에 저목 중인 소나무와 잣나무 원목을 대상으로 변재변색의 발생시기와 변색 특성을 조사하기 위하여 수행되었다. 벌채 후 3, 4, 5, 6, 8개월 경과시 변색 평가를 실시하였는데, 매 평가시 원목 3개를 임의로 선정하여 원목당 수축방향에 대해 일정 간격으로 7∼9개의 두께 3 ㎝ 원판을 채취하여 변색 원인균을 분리한 후 변재변색의 방사방향 최대 침투깊이와 % 변색율을 측정하였다. 변재변색은 전적으로 층형변색이었으며, 주요 변색원인균인 Ophiostomatoid 균을 매개하는 수피천공충은 소나무좀으로 확인되었다. 소나무와 잣나무 원목은 5월 이전까지는 변재변색의 위험없이 저목할 수 있으나 5월 이후부터는 원목의 변재변색이 급속하게 증가하였다. 변색의 정도는 소나무보다 잣나무에서 심하였으며, 장마철 저목 중에 소나무 원목에서 개떡버섯과 치마버섯의 자실체를 다수 관찰할 수 있었다. 본 연구를 통해 밝혀진 결과들은 앞으로 동절기에 벌채되어 저목 중인 소나무와 잣나무 원목에 발생하는 변재변색을 예방하기 위한 제반 조치를 취하는데 매우 중요한 자료로 사용될 것이다. This study was conducted to investigate the influence of storage time on the sapstain development of Japanese red pine and Korean pine logs during storage in log yard, and their stain characteristics. Japanese red pine and Korean pine trees were harvested and cut into logs in mid January of 2001. These logs were transported to the two local sawmills where they were closely stacked in remote parts of log yard. The logs were then sampled destructively by cutting seven to nine 3-㎝ long discs along the length of each log at intervals of 3, 4, 5, 6, and 8 month after felling. The stain coverage and maximal radial penetration of stain were measured from the discs of the sampled logs after the isolation of causal staining fungi. The sapstain was primarily infested by the attack of bark beetles and the species of bark beetle was identified as Tomicus piniperda. The main fungal species isolated from stained wood was Ophiostoma species. Based on the present study, the logs could be stored in log yard until May without stain; but stain development was rapid after May and the severity of stain increased proportionally with storage time. Korean pine was more susceptible to fungal stain than Japanese red pine. During summer storage, decay started to develop in logs and the main species were identified as Tyromyces sp. and Schizophyllum commune. Information provided in this paper would be very useful to develop more effective control strategies for sapstain prevention in Japanese red pine and Korean pine logs.

CCA 처리재로부터 방부제 유효성분의 용제추출

김규혁,공일곤,나종범,조재성,김재진 한국목재공학회 2003 목재공학 Vol.31 No.4

본 연구는 CCA 처리재로부터 방부제 유효성분을 추출하기 위한 적정 용제를 선정하고, 선정된 용제의 최적추출조건을 평가하기 위 해 수행되었다. 추출수율과 용제의 사용 및 환경 안전성을 고려할 때, 과산화수소가 CCA유효성분을 추출하는 데 가장 적절한 용제로 선정되었다. 과산화수소를 이용한 추출 결과. 추출온도, 추출용제농도, 추출시간 간에 상호작용이 존재하였으나 추출온도와 추출용제의 농도가 높을수록, 그리고 추출시간이 연장될수록 CCA유효성분의 추출수율은 증가되었다. 경제적인 측면을 고려할 때 가능하면 낮은 농도의 추출용제를 사용하여 저온에서 추출하여야 하나, 이 경우에는 필요한 추출수율을 달성하기 위한 추출시간이 상당히 길어지기 때문에 40℃ 이상의 온도에서 추출이 바람직하며 사용할 추출용제의 농도는 추출시간을 고려하여 최종적으로 결정하여야 된다고 사료된다. This research was performed to select an appropriate agent to extract preservative components from CCA-treated wood, and then to evaluate the effect of reagent concentration, extracting temperature, and CCA-treated wood, and then to evaluate the effect of reagent concentration, extracting temperature, and extracting time on the removal of chrome, copper, and arsenic from treated wood. Hydrogen peroxide was selected as the best extracting agent when considered extraction yield as well as use and environmental safety. Its extraction yield was dependent on extracting variables (temperature, concentration, and time), and a highly significant interaction existed among variables. It should be possible to optimize extraction by manipulating these extracting variables. The results may suggest that the required temperature conditions for the reasonable removal of CCA components are at least above 40℃ because extracting time is too long at low temperature (20℃). Reagent concentrations for extracting at above 40℃ should be decided by considering the extracting time.

현무암 분말(Basalt Powder)을 첨가한 콘크리트의 물리·화학적 특성

이규영,송기범 한밭대학교 2004 한밭대학교 논문집 Vol.21 No.-

In this study, the physical and chemical properties of Basalt powder mixed concrete are investigated. Basalt powder is made by crushing hardened larva with dark green and black color which has properties of temperature resistance, chemical resistance, shock resistance, and durability. To investigate the variations of the physical and chemical properties of the Basalt powder mixed concrete, the proportioning strengths of the concrete were set to 240, 270, and 300kgf/cm². The applied amounts of Basalt powder mixed in the concrete were 10%, 20%, and 30% of the amount of cement in the concrete. The results are summarized as follows: 1. The compressive strength of concrete increases by 5 to 10% compared to the proportioning strength as the mixing ratio of Basalt powder increases. The tensile strength also increases by 10 to 30%. The bending strength also increases by 5 to 15%. 2. In high strength concrete, as the amount of cement increases, the oxidation ratio becomes greater, The oxidation ratio increases as the water cement ratio decreases. It was to show lowest oxidation ratio that the mixing concrete for 10% Basalt powder. 3. The neutralization depth decreases as the mixture ratio of Basalt powder increases. Therefore, it can be concluded that the use of Basalt powder in concrete can assist to prevent the neutralization of concrete.