X-RAY DIFFRACTION METHOD에 의한 COPPER METAL의 구조 고찰

金文執,尹和重,徐日煥 충남대학교 자연과학연구소 1980 學術硏究誌 Vol.7 No.1

The eight X-ray diffraction intensity peaks for copper powder were collected rotating ^(2θ)hkl angle of X-ray diffractometer from 30 degrees to 150 degrees, in which copper target had been used. Each reflecting plane has been identified by means of the relationship between latticeparameter and interplanar spacings, and this result has shown that copper has a face-centered cubic structure and a_(Cu) = 3.6136±7.32 ×10^(-4)Å. The experimental and theoretical integrated intensities of the reflecting planes are in good agreement with each other,

Clinoptilolite 계열의 국내산 천연제올라이트의 상규명 및 NH₄^+ : 이온교환능에 관한 연구

김화중,이기정,이명철 건국대학교 1995 學術誌 Vol.39 No.2

Domestic natural zeolite, Clinoptilolite series was investigated to identify the phase and to study the capability of NH4+-ion removal from the solution system. The domestic natural zeolite mined from Young-II man area was proven to be a thermally unstable zeolite, heulandite by XRD and FT-IR analyses. In addition, the heulandite exchanged by K+ ion showed the highest thermal stability upon the heat-treatments. However, the best capability of removing NH4+-ion from the solution system was the Na+-exchanged zeolite.

유아 교사 양성 대학 교육실습시 동료 임상 장학 실시 사례 연구

김정화,조부경 韓國敎員敎育學會 1998 한국교원교육연구 Vol.15 No.1

요약본 연구는 유아 교사 양성 대학 교육실습시 실습생들 간에 동료 임상 장학이 실시될 수 있는지 그 적용 가능성을 탐색하기 위한 것이었다. 4명씩 4조로 구성된 총16명의 실습생들에게 동료 임상 장학의 기법을 훈련시킨 뒤 정규 실습 기간 중 3주동안 동료 임상 장학을 실시하게 하였다. 삼각측정법에 의하여 자료를 다면적으로 수집한 뒤 분석 기준을 토대로 질적으로 분석한 결과 실습생들은 원만한 인간관계를 형성하고 협의회를 통해 수업 계획안을 구체화시켜 가는 양상을 보였다. 또한 문제 상황에 대하여 개인적 견해나 지도 교사의 시범 수업에 기초하여 분석하였는데 이는 실습생들에게 이론과 실제를 연결짓고 자기 객관화 및 평가 능력을 습득할 수 있는 기회가 되었다. 실습생의 수업 분석 능력이나 시간 부족 등의 제한점이 있었으나 동료 임상 장학은 대체로 실습지도시 실현 가능한 효과적인 방안으로 분석되었다.The purpose of this study was to investigate the implementation process of a peer chinical supervision model in early childhood student teaching. In oder to identify general trends, effects and limits of the implementation process, participant observations and interviews were conducted for 3 weeks in 4 kindergarten classrooms where 16 early childhood student teachers were performing their student teaching. Interview data, field notes, and audio & video tapes were analyzed through three steps. The findings are as follows : During the conferences for peer clinical supervision, the democratic relationship had been spread out among student teachers. They also specified their lesson plans and analyzed their problems based on classroom teachers' model lessons. The peer clinical supervision model was revealed as an ideal method which student teachers could improve their analysis competence and self-evaluation skill eventhough there were some limitations.

휫스턴 브리지를 응용한 스마트 콘크리트의 개발

김이성,성원경,김화중 대한건축학회 2005 大韓建築學會論文集 : 構造系 Vol.21 No.3

Various structural materials have been used in construction projects using stones, concretes, and steels materials. Among of these projects, concretes may use widely because concretes have high compressive strength, and comparatively easy maintenance and management. Reinforced concrete Buildings will be deteriorated as time passed. These problems will be accelerated by propagation of cracks. In order to manage such cracks, time, efforts and expense are required. In this study, leakages of fluorescence and adhesive material were investigated using glass sensors that were embedded in a model beam and column. In addition, currents in glass pipe sensor were observed to find leakage of liquid in glass pipes. Progressive cracks were generated by fracture of glass pipe sensor. In this investigation, a reinforcement clothing system was wrapped for a glass pipe sensor. The glass pipe sensor that can make control and reinforce cracks simultaneously.

가네트를 활용한 고강도콘크리트의 고온수열 후 잔존압축강도특성

김동익,윤요현,박정민,김화중 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1(구조계)

The study which it describes the high concrete which industrial by-product used garnet powder was quality of residual strength after heating. The test unit water content 160kg/m', water reunion ratio did with 30%, 35% and the aggregate ratio is 40%, 42%, 44%, displacement ratio admixture is 0%, 10%, 20%. Admixture garnet powder, fly ash, blast-furnace slag and it was compared with the residual strength of concrete after was heated to normal temperature, 50℃,100℃, 150℃, 200℃, 350℃, 500℃, 600℃, 800℃.With this test was got the next conclusion. To previously 350℃, the weight reduction was not big, it was visible the weight reduction which was sudden from 350℃, and it showed the aspect which also the compressive strength reduction is identical. It compared with admixture nothing replacement concrete, garnet replacement concrete relatively weight reduction and compressive reduction appeared small. Like this tendency recording where the replacement ratio will be increased the tendency which appeared relative small.

偶然과 確率의 槪念形成을 위한 單元學習資料 開發 硏究

金楨化,崔友錫,朴秉昊 晋州敎育大學校 科學敎育硏究所 1976 科學敎育硏究 Vol.2 No.-

Piaget and Inhelder figured in several Modules of the experimental results that the idea of Chance and Probaiblities was developed into the three stage graduatly. From seven or eight to eleven or twelve years of age, a second period is characterized by the construction of operative grouping of a logical order in primary school children. In this study the development of a Modules concerned with conception of Chance and Probababilities was compared the notion formation by school year, and difference degree between regional notion formation, relationship between examination results in science, relationship between basic concept formations. The sample population was 353 students of B primary school located in urban region, Jinju, 291 students of O primary school in farm region, Jin-yang County, and 304 students of N primary school in fishing region, Ha-Dong County from the first grade to the sixth grade. The selection of these samples occured of assigning ramdomized number to all students of population. Children were interviewed individual using tasks developed to reflect the Modules. The interview instruments were used differently by the grade to concept formation after the lesson. Answers acquired through interview tasks for formation or unformation were as follows: A+, A, A-, …average A (sufficieney: Formation) B+, B, B-, …average B (common: Transitivity) C+, C, C-, …average C (insufficiency: Unformation) The results acguired through analysis of data were as follows: 1) The concept formation level of Chance and Probabilities by the developed Modules tends to become half differs from the earlier finding of Piaget and Inhelder, beacause the interview instruments used that in this study differs from Inhelder and Piagetian materials. 2) The difference degrees between regional groups in the concpt formation level of Chance and Probabilities were as follows: _______________________________________________________________________ regional group/Answer(%) A(formation) B(transitivity) C(unformation) _______________________________________________________________________ Urban 54.74 29.77 15.99 Farm 28.03 34.52 37.45 Fishing 30.22 33.93 35.85 Average 37.66 32.57 29.76 _______________________________________________________________________ A comparision of the concept formation level in regional group showed that the cognitive development received higher in the urban school, but lower in the farm and fishing school. 3) The interrelationhip between examination results in science and the concept formation level of Chance and Probabilities has no relation in low grades (1, 2, 3 grade) grades, but favored the relation in high grades (4, 5, 6 grade)by using a Modules of Chance and Probabilities. 4) The interrelationship between basic concept formation and the concept formation of Chance and Probabilities showed that manipulative modules interacted to each child for each lesson, and who knows no law can know no lawlessness.

자기손상자현 스마트 콘크리트 개발

김이성,윤요현,김화중 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(구조계)

The purpose performance degradation of concrete structures is generally caused by deteriorations, such as surface collapse, pop-out, crack, and so on. It may result in serious defects of the concrete structures. Thus it is very important 세 detect and repair the defects of concrete structures within a proper time to assure the structural safety. However, the defects due to the deteriorations are usually difficult to find by visual inspection. A sensor is developed in this study, which may give early indication for degradation of concrete structures and show the location of the damage. Cracks can be defected by the liquid in a small glass capsules which are embedded in the concrete structures. This paper discusses the applicability of that was developed smart concrete.

體育授業에 있어서 敎師 - 學生間의 相互作用이 態度變化에 미치는 影響 : 呼名 動機化를 中心으로 With reference to the motivation of name-calling

金周和,李廷煥 全北大學校附設 스포츠科學硏究所 1987 논문집 Vol.- No.4

With a view to making students have desirable attitudes during their physical education of namecalling, the following procedures were taken. The questionnaire about attitudes was produced by 30 teachers at N Middle School in Chonju. The test sample included 106 second-year boy students at the above school. They were divided into two, an experimental group of 52 students and a controlled of 54, and given two tests, pre-test and post-test. The results of the examination are as follows : First, motivation through name-calling is effective to change the students' attitudes : cooperation spirit (7.74), positiveness (5.34), impartiality (4.04), and responsibility (3.25). Secondly, the students change their attitudes greatly when their fundamental desire is satisfied. Thirdly, the profile of the test results shows us the differences among the characteristics of affective behavior of a person and provides with a useful information in setting up an objective of physical education.

Bastien교재와 Beyer교재의 비교연구

김정화 대구산업정보대학 1987 논문집 Vol.1 No.-

In this thesis, we study to compare and analysis the characteristic of the Bastien of a textbook that gradually be come into wide use in our nation, in opposition to a 「Bayer」 of the elementary piano textbook that has been traditionally used in our Country and 「Sonatine」 of the next step. Trough this study, These resulting point can be summarited as follows: While The Beyer and Sonatine are that musical technigues is a model of the classism music of the extremely monotonous and distinct, Bastien is compactly made the basis that assimilate enough the complicated and various music of today. Also, Because the Beyer and Sonatine are made up of pure instrumental music of bad-known, A teaching schedule is tedious and perseverance necessary to some extent. But, The Bastien is composed of a melody that The words of the song is, a folk song, a tune of well-known, it can be assimilated in a familar mood. Also, compared with The Beyer of uniformity, the Bastien can be studied interestingly through the game, the rhythm, drawing a picture, etc. and impartially developed the various fields of musics-listening, a creation, playing a rhythm, etc. Although the Bastien is good textbook as an aspects of techniques and learning effects,because it contains a great deal of America's factor, it is general that The spirit, calture, music of korea lose if The children of korea continually come in contact with textbook of the Bastien. Therefore, This presents a striking contrast to Beyer and Sonatine of pon-universality. Thus, making the most of a merit of New-old textbook, we expect that korea musicians publish an pertient piano textbook of today for inexperienced children of our country in a world-wide, in a korea, as Bartok make an attempt tosublimate national characteristrics music art in Mikrokosmos.

유리관을 이용한 스마트 콘크리트의 개발

김이성,윤종문,김화중 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2

The R.C building will be superannuated if time passes. This cause is generated by propagation of a crack. In order to notice such a crack, time and efforts, expense, etc, that have exhausted. Various technologies were developed to improve its properties related to strength and workability during construction. Performance degradation of concrete structures is generally caused by the deteriorations, such as surface collapse, pop-out, crack, and so on. The deterioration mechanism of concrete is very complex. Detection of the degradation and fracture inside of concrete is also very difficult. A method to detect or cure the concrete crack have been developed in this study. They are by using small glass-pipe sensors. Experimental study shows good performance for detecting crack(small glass-pipe sensors) inside of the concrete.