내포량의 평균 공식과 조작적 학습법

김명운,Kim, Myung-Woon 한국수학사학회 2010 Journal for history of mathematics Vol.23 No.3

본 논문은 속도, 온도, 농도, 밀도, 단가, 일인당 국민소득 등의 내포량의 평균을 구할 때, 내포량마다 다른 공식을 적용하여 구해야 하는 불편함을 해소하기 위하여, 지레의 원리를 이용하여 두 내포량의 평균 공식 $M=\frac{x_1f_1+x_2f_2}{f_1+f_2}$를 유도하였고, 이 공식의 관계적 이해를 돕기 위해 지레의 원리를 이용한 조작적 학습법을 제시하였다. 비의 의미의 분수는 그 수치만으로 덧셈을 할 수가 없어 비가법적이라고 한 것을 비중을 적용하여 계산할 수 있음을 보인 것이다. 또한 두 양에서뿐만 아니라 여러 양의 덧셈도 단 한번의 공식에의 적용으로 해결할 수 있도록 확장 적용시킨 $M=\frac{x_1f_1+x_2f_2+{\cdots}+x_nf_n}{N}$ (단, $f_1+f_2+{\cdots}+f_n=N$) 은 새로운 공식이 가중평균을 구하는 공식이었다는 것을 밝혔다. 또한 통계학에서 의문거리였던 하위 제표의 방향성과 다른 모습을 보이는 상위제표의 통계자료에 대한 심프슨의 파라독스의 의문점을 가중평균의 원리를 이용하여 밝혔다. This study presents one universal mean formula of implicate quantity for speed, temperature, consistency, density, unit cost, and the national income per person in order to avoid the inconvenience of applying different formulas for each one of them. This work is done by using the principle of lever and was led to the formula of two implicate quantity, $M=\frac{x_1f_1+x_2f_2}{f_1+f_2}$, and to help the understanding of relationships in this formula. The value of ratio of fraction cannot be added but it shows that it can be calculated depending on the size of the ratio. It is intended to solve multiple additions with one formula which is the expansion of the mean formula of implicate quantity. $M=\frac{x_1f_1+x_2f_2+{\cdots}+x_nf_n}{N}$, where $f_1+f_2+{\cdots}+f_n=N$. For this reason, this mean formula will be able to help in physics as well as many other different fields in solving complication of structures.

UASB 반응조에 의한 석유화학폐수의 혐기성 처리

김명운 대진대학교 1996 大眞論叢 Vol.4 No.-

The removal efficiencies of petrochemical wastewater by upflow anaerobic sludge blanket reactor were average 74.6% and maximum 85.7%. pH was maintained between 6.7-7.4 which showed stable reactor conditions. Net production rate of metane and proportion of methane were 3.57L/m³·day and 77.7%, respectively. Other parameters about chemical state of reactor also confirmed stable activity of methanogenic bacteria. This result showed that anaerobic treatment of petrochemical wastewater and obtaining of methane gas from waste are possible. Futher studies about development of pretrement process, unit process, and methanogenic bacteria were required.

農藥의 殘留毒性

金明運 건국대학교 농과대학 연합학회 1967 건농 Vol.- No.1

Emission Characteristics of a Spiral-shaped Microcavity Laser with a Waveguide

김명운,이창환,김칠민 한국물리학회 2012 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.60 No.5

We investigate the emission characteristics of whispering-gallery-type modes (WGTMs) in a spiral-shaped InGaAsP semiconductor microcavity laser with a waveguide, connected to the notch. When the boundary of the cavity is selectively pumped by using cw current injection, WGTMs are launched to the waveguide and then are emitted in two directions from the waveguide in a far-field pattern. By observing the far-field pattern and the emission spectra, we identify the characteristics of the WGTMs launched to the waveguide. The emission spectra show that the two directions are caused by different WGTMs.

全鰒殼을 利用한 活性酸化칼슘 製造에 關한 硏究

金明運 건국대학교 1981 學術誌 Vol.25 No.1

It determined ignition loss, solubility pH and toxicity from haliotis shell powder treated by temperature. The results were as follows. 1.It producted active calcium oxide from haliotis shell powder by means of high temperature treatment (700-1000℃). Especially increased its yield at 900℃. 2.The solubility increased due to temperature rising. 3.It's water solution is pH 10 and less at 500℃ under but is pH 12 and more at 600℃ over. 4.The rate of survival is 100 percentage in 5g an less and toxicity is none.

O-Methoxy-phenol 誘導體의 合成 및 그 分析化學的 硏究

金明運 건국대학교 1970 學術誌 Vol.11 No.1

The synthetic method of 2-methoxy-5-mitrophenol with mixed acid was reported on Tapan patent (1965) and Korea patent (l964) The author experimented nitration of o-methoxy phenol with cone-nitric acid only, using for solvent with acetic acid. The results were shown in 〈Table 1,2〉 and 〈Fig 1,2〉. ① The author's experiment was more excellent than nitration with mixed acid in process, yield and purity. ② And, it was possible to synthesize various derivatives by substition of atom or atomic group. ③ Through the appearance, the distirction of 2-methoxy-5-nitophenylacetate and 2-methoxy-5-nitrophenol was possible. The said, both substance were identified by means of IR spectra element analysis and Melting Point determination.

맥락화를 통한 분수의 곱셈과 나눗셈 지도

김명운,장경윤 대한수학교육학회 2009 학교수학 Vol.11 No.4

This dissertation is aimed to investigate the reason why a contextualization is needed to help the meaningful teaching-learning concerning multiplications and divisions of fractions, the way to make the contextualization possible, and the methods which enable us to use it effectively. For this reason, this study intends to examine the differences of situations multiplying or dividing of fractions comparing to that of natural numbers, to recognize the changes in units by contex- tualization of multiplication of fractions, the context is set which helps to understand the role of operator that is a multiplier. As for the contextualization of division of fractions, the measurement division would have the left quantity if the quotient is discrete quantity, while the quotient of the measurement division should be presented as fractions if it is continuous quantity. The context of partitive division is connected with partitive division of natural number and 3 effective learning steps of formalization from division of natural number to division of fraction are presented. This research is expected to help teachers and students to acquire meaningful algorithm in the process of teaching and learning. 이 연구는 분수의 곱셈․나눗셈에 관련한 교수-학습을 의미 있게 도울 수 있는 맥락화가 왜 필요하며, 어떻게 가능한지, 또한 효과적인 맥락화의 활용 방안은 무엇인지를 탐구하는 것을 목적으로 한다. 이를 위해 자연수에 대하여 분수의 곱셈․나눗셈 상황의 차이는 무엇인지를 살펴보고, 그 차이에 따라 분수의 곱셈에서는 승수인 연산자의 역할을 이해할 수 있는 맥락을 설정하여, 단위의 변화에 대한 인식을 하도록 하였다. 분수의 나눗셈에서 포함제는 그 몫이 이산량인 경우이면 남은 양이 생길 수 있고, 연속량인 경우에는 분수로 그 몫을 표현해야 하는 맥락으로 구분지었다. 그리고 등분제의 맥락은 자연수의 등분제의 맥락과 연결시켜 새롭게 제시하여, 자연수의 나눗셈에서 분수의 나눗셈으로 형식화되는 3단계의 효과적인 학습 방법을 제안하였다. 이로써 교사와 학생들의 분수의 곱셈과 나눗셈의 교수-학습 과정에 있어서 유의미한 알고리즘의 습득에 도움을 줄 수 있을 것으로 기대한다.

韓國産 Zeolite에 關한 硏究

金明運 건국대학교 1978 學術誌 Vol.22 No.1

It is determinated cation exchange capacity, chemical composition and classified by X-ray diffraction analysis. And then Chryanthemum was cultivated in soil mixed with zeolite, with vermiculite, with zeolite and vermiculite together and in non-treated soil. The results were as follow ; 1) Korean zeolite is high silica type, higher in cation exchange capacity. 2) It belong to clinoptilolits and mordenite group, and is high purity. 3) The coil mixed with zeolite and vermiculite together is more effective. 4) In soil mixed with clay minerals 3% or 5%, its growth is effective.

조직범죄에 대한 대응책과 현행 근거법령에 대한 고찰

김명운 한국비교형사법학회 2003 비교형사법연구 Vol.5 No.2

貝殼(바지락·동죽)을 이용한 活性酸化칼슘 製造에 관한 硏究(2報)

金明運 建國大學校附設 農業資源開發硏究所 1982 論文集 Vol.7 No.-

바지락과 동죽의 殼을 微粉化하였을 때의 減量, 溶解度, pH의 變化 및 毒性에 관한 實驗結果를 다음과 같이 要約한다. 1. 바지락과 동죽殼粉末을 高溫處理(800∼1000℃)함으로써 酸化칼슘을 生成할 수 있으며 1000℃에서 收率이 컸다. 2. 處理溫度가 上昇함에 따라서 溶解度는 微量씩 增加한다. 3. 수용액의 pH는 약간씩 上昇하였다. 4. 高溫處理 貝殼粉末의 水溶液의 沮止效果가 크고 培養時間이 길수록 沮止效果가 低下되었다. It determined ignition loss solubility pH and inhibitory effect of microbos from shells powder treated by temperature. The results were as follows. 1. It produced active calcium oxide from shell. (Tapes phillippinarum, Mactra venerifonis) by means of high temperature treatment(800∼1000℃). Especially increased its yield at 1000℃. 2. The solubility increased due to temperature rising. 3. pH of water solution is increased slightly. 4. The growth inhibitory effect of the water solution is good. And the longer culture time is, the lower growth inhibitory effect is.