pH 및 온도감응성 고분자 마이크로겔의 제조 및 콜로이드 특성

김명호 충북대학교 대학원 2006 국내박사

廢合成樹脂와 無機物質을 利用한 吸着機能性 濾材 開發

김명호 전남대학교 대학원 2004 국내박사

住宅價格 決定要因에 관한 硏究 : 淸州市를 中心으로

김명호 檀國大學校 1994 국내박사

The purpose of this study is to investigate the housing price factors by using hedonic approach based on variables including physical elements, building site, regional environment in Chongju city. This study employed regression analysis and correlation research method to achieve the major objectives of this study. The followings are major findings as ; Firstly, the physical factors using variables in this research are a building feature, a floor space, a number of rooms, heating systems, kitchen facilities, garden space, a basement, a garage, and the building age. The results from correlation analysis between the factors and the housing price is analysed. The results show that a building feature, a floor space, a number of rooms, a kitchen facilities, garden space, a basement have highly affected to determine housrng price in Chongju city. Secondly, a site variable aaong other factors such as housing environment, a site space, disqust facilities has only high correlation with housing price. Thirdly, there are high correlations between housing price and environmental amenity, a distance to a market but shows no relationship between housing price and regional environmental factors. Fourthly, the building size, a number of rooms, garden space, the degress of satisfaction for housing have high correlations among variables. Fifthly, housing price in hedonice price function has significantly high coefficients in the physical factors, a building feature, a floor space, a number of rooms, garden space, a basement, a housing age. Especially a building site, a site space, a distance to the core of city have highly affected to housing price. Sixthly, the physical elements, a building feature, a floor space, a number of rooms, garden space, a garage, a housing age have also highly affected to housing price in the east Chongju city. Seventhly, the physical elements, a building feature, a floor space, a number of rooms, a basement, a housing age have also significantly affected to housing price in the west Chongju city. With the results as above, a physical elements and a building site of housing are main variables to determine the housing price in Chongju city. Specifically, the difference of housing price variables between the east parts and the west parts of Chongju city is due to amenity difference of two areas environment as regional factor. In conclusion, the important factors affected to housing price in Chongju city are building feature, a floor space, a site space, a number of rooms, garden space, a basement, a housing age.

神經症 患者의 身體症狀에 對한 臨床的 考察

김명호 全南大學校 大學院 1981 국내석사

Ninetyone neurotic outpatients were studied for their somatic symptom complaints. The results were as follows; 1 ) The frequent somatic symptoms were those of head including heada-che(59.3%),cardiovasular and respiratory symptoms (40.6 ) , sleep disturbance (38.5%) , and gastrointestinal symptoms (27.5%). and relatively rare symptoms were those of urogenital system (6.6%)and dermatologic symptoms (4.4%) 2 ) The mean number of somatic symptoms was 3.1 and that of mental symptoms was 1.1 . 3 ) Nearly half of the patients (47.3%) complained somatic symptoms only. 4 ) The group of patients complaining somatic symptoms only was significantly lower in educational level and older in age than the group of patients complaining both somatic symptoms and mental symptoms(p <0.05).

GeTe, Sb2Te3 나노소재의 합성 및 분석

김명호 공주대학교 대학원 2012 국내석사

This is general introductory chapter and highlights a brief account on the chemistry of GeTe and Sb2Te3 nanomaterials and its applications. Here, we have described the various processes of GeTe and Sb2Te3 and its uses in PRAM. The concluding part of this chapter gives a brief account on the works that has been done by different groups in the field of GeTe and Sb2Te3 nanomaterials. Solution based synthetic routes are attractive strategies for synthesizing GeTe materials, because they have the potential to impart morphology control on the crystallites and permit liquid-based processing of films and patterned structures. A facile liquid phase method for the synthesis of crystalline and amorphous GeTe nanoparticles (NPs) using germanium chloride dioxane and elemental tellurium dispersed in tri-n-octylphosphine (TOP) in the presence of olylamine (OLA) which acts as reducinging agent as well as solvent and using germanium chloride dioxane and (Et3Si)2Te in the presence TOPO as solvent without the use of any reducing agent is reported. As synthesized, the crystalline GeTe NPs possess rhombohedral symmetry with cube-shaped morphologies. Amorphous GeTe particles prepared at smaller reaction time (2 mins and 5 mins) are nearly spherical in morphology and display amorphous -to- crystalline phase transition with increasing reaction time. Subsequent experiments suggested that the morphology of the GeTe product had a strong dependence on the reaction temperatures. The SEM image of NPs obtained by germanium chloride dioxane and (Et3Si)2Te reveals that with increase in reaction time (2, 5, 10, 15, 30 and 60 min), size of the NPs increases and shape becomes uniform. We assume that the amorphous-to-crystalline transition in GeTe NPs is probably kinetically impeded by the surface restructuring that happens in NPs during their growth in order to minimize the surface energy. The GeTe crystallites are characterized by XRD, SEM, EDS (including element mapping), DSC, XPS and TEM. Syntheses of single crystalline nanomaterials are of special importance because of their thermoelectric properties. Herein, we report the first example of the generation of Sb2Te3 nanoflowers from a solution based method at very low temperature (100°C). A simple and convenient germanium assisted low temperature liquid phase synthesis of Sb2Te3 3D flowerlike architectures with diameters of 300-500 nanometers which consisted of the aggregated flakes is described. TEM results showed the flakes were built up from many nanocrystals with around 5 nm diameters. Subsequent experiments performed without the use of germanium source gives only platelike architectures of irregular size and shapes. The results obtained from SEM and TEM suggest that the morphology of the as synthesized nanoflowers is completely based on reaction time and use of germanium source. The morphologies and composition of the as-prepared Sb2Te3 nanoflowers have been characterized by powder XRD, scanning electron microscope (SEM), transmission electron microscope (TEM), high-resolution transmission electron microscope (HRTEM), Differential scanning calorimetry (DSC) energy-dispersive X-ray spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS). The atomic ratio of the Sb to Te is very close to 2:3 stoichiometry. A possible mechanism is also proposed for the formation of these flowerlike nanostructures.

Epoxy/MA/PU 복합 재료의 상호 침입 망목 구조가 절연 파괴 특성에 미치는 영향

김명호 광운대학교 대학원 1994 국내박사

에폭시 수지는 전기·전자 절연 재료로 이상적으로 적합한 고유의 물리적 및 화학적 성질로 인하여 선진 복합 재료의 모체 수지로서 그 활용도가 매우 높다. 그러나 고온 영역에서 절연 파괴 강도가 급격하게 저하되며, 기계적 강도 및 열전도 등을 위하여 충진제를 첨가했을 때 절연 파괴 강도가 급격하게 저하되기 때문에 절연에 대한 신뢰도가 낮다. 이와 같은 문제점을 해결하기 위하여, 가교 고분자를 밀접하게 혼합시키는 유일한 방법인 상호 침입 망목 메카니즘을 에폭시 수지에 도입하였다. 기본의 에폭시 수지(E 계열)를 일차 망목으로 하고, 메타크릴산 수지를 이차 망목으로 하는 동시 상호 침입 망목(SIN:EM 계열) 시편을 제작하였다. 아울러 에폭시 수지를 일차 망목으로 하고, 메타크릴 산 수지와 폴리우레탄 수지를 이차 망목으로 하는 준 상호 침입 망목(PDIPN:EMP 계열) 시편을 제작하였다. 이와 같은 3종류의 시편에 충진제 SiO_(2)를 함량별로 0[phr], 5[phr], 50[phr] 및 100[phr]을 첨가하여 총12종류의 시편을 제작하였다. 기존의 에폭시 단일 망목 구조체가 다중 망목 구조체로 전환됨으로써 발생하는 morphology의 변화가 절연 재료의 특성에 미치는 영향을 비교 검토하기 위하여, 차동 열량 분석, X선 회절 분석, 전자 주사 현미경 관찰과 더불어 직류, 교류 및 충격 전압 절연 파괴 강도 측정을 행하였다. 그 결과, 동시 상호 침입 망목 시편의 유리 전이 온도가 가장 높았으며, X선 회절 분석과 전자 주사 현미경을 통한 관찰에서도 이러한 현상을 뒷받침하는 결과를 얻을 수 있었다. 이러한 결과들의 영향으로 인하여, 절연 파괴 강도 측정에서도 동시 상호 침입 망목 시편의 절연 파괴 강도가 가장 안정되고 우수하였다. 기존의 에폭시 단일 망목 구조체 시편은 모든 전압 파형의 고온 영역에서 절연 파괴 강도가 급격하게 저하되었으며, 준 상호 침입 망목 구조체 시편은 모든 전압 파형에서 전체적으로 절연 파괴 강도가 낮았다. 충진제 첨가시에 발생되는 계면으로 인하여, 단일 망목 구조체 시편은 충진제 함량의 증가에 따라 절연 파괴 강도가 저하 되었으나, 동시 상호 침입 망목 시편과 준 상호 침입 망목 시편의 절연 파괴 강도는 증가하거나 저하되지 않았다. 이상의 결과로 에폭시 복합 재료에 상호 침입 망목 구조를 도입하면 내부 구조의 견고 및 조밀화로 인하여 열적 및 전기적 특성이 우수한 절연 재료가 된다는 것을 확인하였다. Epoxy resin has been very frequently used as matrix resin of advanced composites owing to ideally suitable properties and inherent physical and chemical properties for electrical and electronic insulation. But the confidence to insulation of it is low because the dielectric breakdown stregth rapidly decreases in the high temperature region and when fillers are added to it for mechanical stregth and heat conduction etc. Interpenetrating polymer network, the only way to intimately combine crosslinked polymers was introduced to it in order to solving these problems. It was manufactured a simultaneous interpenetration polymer network (SIN:EM series) specimen in which the existing epoxy resin(E series) was taken as a first network and methacrylic acid resin as a second network. At the same time, it was manufactured a pseudo interpenetrating polymer network (PDIPN:EMP series) specimen in which epoxy resin was taken as a first network, and methacrylic acid resin and polyurethane resin as a second network. According to filler SiO_(2) classified by 0[phr], 5[phr], 50[phr] and 100[phr] weight percent was added to those specimens of three kind, the specimens of total twelve kind were manufactured. So as to investigate the influence of change of morphology due to change single netwrok polymer of the existing epoxy to multiple network polymer upon the properties of insulator, it was experimented with differential scanning calorimeter, X-ray diffraction, scanning electron microscope, and DC, AC and Impulse voltage dielectric breakdown. As the result, the glass transition temperature of simultaneous interpenetrating polymer network specimen was highest. Also the results that supports this phenomena could be obtained at the X-ray diffraction analysis and scanning electron microscope observation. Due to the effect of these results, the dielectric breakdown strength of SIN specimen too was stable and superior in the measurment of dielectric breakdown strength. The diejectric breakdown strength of the existing epoxy specimen with single network stucture was rapidly lowered at the high temperature region of all voltage waves. It of PDIPN specimen generally low at the all voltage waves. As added fillers generate interface, it of specimen with single network structure was lowered according to increase of filler weight percent, but it of SIN and PDIPN specimen were increased or not dereased. From these results, it was confirmed that thermal and electrical properties of epoxy composites can be superior as IPN introduced to it bring about firm and high density of inner structure.

무인 국방 로봇의 실시간 해석을 위한 기호연산 기법 기반의 효율적인 부분시스템 합성방법 연구

김명호 忠南大學校 大學院 2013 국내석사

This thesis proposes an efficient method for the real-time multibody dynamics analysis on the unmanned military robot which have six identical suspensions. To improve computational efficiency, the subsystem synthesis method has been employed. Using the subsystem synthesis method, the equations of motion of the base body and each subsystem can be solved separately. In the proposed method, various coordinates systems can beused and various integration methods can be applied in each subsystem. To achieve highly efficient simulations, the explicit-implicit integration method was suggested. In this integration method, the Adams-Bashforth 3rd oder explicit integrator is used to solve the equations of motion for the base body system and the HHT-α implicit integrator is utilized for obtaining the solutions for each subsystem. For the implicit integration formulas effectively, the symbolic generator using MAPLE software is used. Because the expression of the system Jacobian matrix is very complicated in the formulation. To apply easily symbolic language, the variety symbolic method(general method, common variable method, zero and one variable method, recursively method) were introduced. In order to see the effectiveness of the each method, half sine bump and rough terrain simulations of the 6x6 unmanned military robot have been carried out by comparing two different coordinates system(Cartesian coordinates, joint coordinates) and integration method(explicit integration method, explicit-implicit integration method). The CPU times of simulations are also compared to investigate the efficiency of the each method.

소득세법상 추계과세제도에 관한 연구 :

김명호 제주대학교 경영대학원 2005 국내석사

울릉도 복음화의 현황과 역량 : 예장(통합)을 중심으로

김명호 한일장신대학교 2012 국내석사

WBI를 이용한 기계공작교과 학습용 프로그램 개발 : 절삭가공을 중심으로

김명호 漢陽大學校 敎育大學院 2002 국내석사

본 연구는 새로운 학습환경으로 대두된 학습자 중심의 열린교육에 부합할 수 있는 효과적인 학습방법을 개발하는데 그 목적이 있다. 열린교육의 학습관은 학습자의 자율성, 창의성, 자기주도적인 학습법 등을 바탕으로 하는 구성주의 학습관이 중심을 이루고 있으며 Web의 구조 또한 그 접근방법이 구성주의 학습관과 매우 유사하다. 이런 점에서 WBI를 제작하여 제공함으로써 학습자들에게 열린교육이 추구하는 자율적이고 자기 주도적인 학습환경을 마련해 줄 수 있을 것이다. 이에 제작한 이 학습프로그램을 간략히 요약하면 다음과 같은 특징을 들 수 있다. 첫째, 웹 상에서의 실시간 수업이 가능하며, 시간에 제약을 받지 않는 반복수업이 가능하다. 의문점이 있으면 E-mail을 이용한 문답이 오갈 수 있으며 게시판을 통해 공지사항, 과제물이 제시될 수 있다. 둘째, 수업에 관련된 다양한 내용들을 수록하고, 수업 외적인 흥미를 유발할 수 있는 동영상이나 음악을 함께 수록하여 수업의 지루함을 억제할 수 있도록 하였다. 셋째, 관련사이트 및 학습자에게 도움을 줄 수 있는 사이트를 링크 시켜놓아 다양한 정보를 제공받을 수 있도록 하였다. 본 연구의 Web 학습프로그램이 급변하는 교육환경에 부합하는 여러 가지 학습방법 중 효과적인 한 방법이 될 것이다. This research's aim is to develop effective studying methods which coincide with learner's open-minded education. Studying views of open-minded education is based on self-regulation and creativity that consists of component studying views. Web structure is similar to component studying view. In this view, we supply learners with WBI. It will prepare self-regulation and self-control and pursue open-minded education. Learning programs refer to the following characteristics. First, learning program is able to use real-time lessons on the web. It is able to make repetitive lessons using unrestricted time. If we have a question, we can use e-mail. it is able to show objects, announcements and bulletin boards. Second, learning program contains various contents related to class and multimedia which are highly motivational. It prevents lessons from being boring. Third, it provides various kinds of information to learners, linking them to internet sites which help them. This research of web programs is considered one of the most effective methods among many other studying methods which coincide with suddenly changing educational surroundings.