구한말 일제강점기 이후 서울의 풍치림조성 및 치산치수 역사

강영호,이천용,배영태 한국산림공학기술연구회 2010 산림공학기술 Vol.8 No.1

직류 서보 전동기의 속응성 및 안정성 향상을 위한 개선된 뉴로-퍼지 제어기이 설계

강영호,김락교 대한전기학회 2002 전기학회논문지 D Vol.51 No.6

- We designed a neuro-fuzzy controller to improve some problems that are happened when the DC servo motor is controlled by a PID controller or a fuzzy logic controller. Our model proposed in this paper has the stable and accurate responses, and shortened settling time. To prove the capability of the neuro-fuzzy controller designed in this paper, the proposed controller is applied to the speed control of DC servo motor. The results showed that the proposed controller did not produce the overshoot, which happens when PID controller is used, and also it did not produce the steady state error when FLC is used. And also, it reduced the settling time about 10%. In addition, we could be aware that our model was only about 60% of the value of current peak of PID controller.

政治學의 方法에 관한 硏究(Ⅰ)

姜永晧 慶北大學校 1975 論文集 Vol.20 No.-

1. It may be said that the characteristics, objects methods and tasks of political science emerge when we study on political science. In order to grasp the orbit and guideline of political science prior to the research on above phenomena, we look into following: historical progress of political idea, true meaning of political phenomena, and direction of political science. 2. I realized that the significances of objects of political science are politial processes and unity of political pattern of political phenomena, and think that the scope of these phenomena, abstracted from the social phenomena is the scope of political phenomena. 3. Scientific attitude of political science rests in evaluating the political power-commanding value which social constituents act and seek according to political power-movements, and grasping meaningly the political phenomena. 4. Research methods of political science must be understood as a inter-permeative between the cognitive method, recognizing objectively and rationally real aspect of "Sein", and practical method, valuation of "sollen". And the cognitive method of political science has analytic and synthetic ways which are the objective observation, while practical method has intuitive and introspective ways which are valuation of objects. But it is general trend that both methods are forming and using a certain model. 5. As a conclusion, we must not confuse nor think the objectivecognition and subjective practice as segregative ones in research methods of politieal science. It is helpful to study it as a inter-permeative between above two methods.

勵起媒質에 入射된 高에너지 粒子에 의한 Bremsstrahlung과 Čerenkov 복사이론

姜榮浩,李瑛熹 계명대출판부 1979 童山申泰植博士古稀紀念論叢 Vol.S No.-

본 논문에서는 순수한 물질을 외부에서 電磁氣場을 가하여, 여기에 대전된 입자를 입사시켰을 때의 그 물질의 誘電率(dielectric constant)의 變化와 이들 誘電率의 變化로 인한 Bremsstrahlung과 Cerenkov 복사선의 變化와 그 강도를 계산하고, 이로 인하여 최근에 많이 논의되고 있는 勵起된 매질 내의 高에너지 입자의 측정 가능성과 그 측정방법에서 측정 가능한 범위를 알려주고, 또한 그 電磁氣場으로 인한 誘電率의 變化를 계산하여 보고자 한다.

Schottky Diode의 製作 및 特性

姜榮浩,李相潤,都是弘 慶北大學校 1972 論文集 Vol.16 No.-

Surface barrier diodes have been fabricated by evaporating gold film (about 400 Å in thickness) on n-type silicon wafers whose resistivity was 50 ohm-cm. The breakdown voltage at room temperature was [about 30 volts, and the variation of saturation current ΔI_S as the function of temperature T(˚K) and illumination L(lux) were expressed in the form of ΔI_S=I_0 exp (α/T) and ΔI_L=KL, respectively, where I_0=3.98(A), α=-4.6×10_3(deg), and K=3.6×10^-9(A/lux.) The α-ray energy resolution for Am^241 and Ra^226 of the detectors which employed these diodes was about 5%.

大邱地區의 環境放射能調査硏究 (第4報) : (1966. 6-1968. 5) (June 1966-May 1968)

姜榮浩,李相潤 慶北大學校 1968 論文集 Vol.12 No.-

An investigation of the envrionmental radioactivity of rain water, fallout and air-borne dusts in Tagu area (E.long.128˚37',N.lat.35˚53') during a period of June, 1966 to May, 1968 has been made. During this period, there were four-times nuclear bomb tests by Red China. The results of these measurements are as follows; 1. The annual mean values of radioactivity in the rain water collected at fixed time daily were (2.15±3.08) μμ Ci/cc(1966) and 7.77±0.05) μμ Ci/cc(1967). The maximum value of the radioactivity during the period was (270.27±0.72)μμ Ci//cc on Dec. 30,1966. It seemed to be caused by the fifth nuclear bomb test by Red China on Dec. 28,1966. 2. The annual mean values of radioactivity of the fallout collected by gummed papers in 1966 and in 1967 were (46.92±0.08 muCi/ft^2-10d and (1.00±0.02) mu/Ci/ft^2-10d, respectively. The maximum radioactivity (161.1±0.15)muCi/ft^2-day(Dec.30,1966) in this investigation period was seemed to be caused by the fifth nuclear bomb test (Dec. 28, 1966) by Red China. 3. The annual mean values of radioactivity of the air-borne dusts collected by the air sampler in 1966 and in 1967 were (23.19±0.38) pu Ci/cc and (14.05±0.32)puCi/cc, respectively, The maximum radioactivity in this investigation period was(345.9±1.5) puCi/cc(Dec. 30,1966). 4. The environmental radioactivities caused by the fifth nuclear bomb test is enormously higher than that of the first test. (Dec. 16, 1964). 5. Ce^141, Ce^144, Ba^140, Ru^103, Rh^106, Zr^95, and Nb^95 nuclides were detected with gamma-ray spectrometry. 6. Autoradiographic exposure was made for falling dust samples, and the concentration of fallout particles was estimated by inspecting the autoradiography.

大邱地區의 環境放射能調査硏究(第 8 報) : 1977.1.1-1978.12.31 Jan.1977-Dec.1978

姜榮浩,李相潤 慶北大學校 1979 論文集 Vol.27 No.-

Since July 1956, the survey of environmental radioactivity has continuously been carried out as a fall-out program. This report concerns radioactivity in Air-borne dust, Fall-out, and Rain-out measured in Daegu area (N. lat. 35°53′, E. long. 128°37′) during the period of 2 years from January 1, 1977 to December 31, 1978. This report includes special survey results from the 22th, 23th, and 24th nuclear explosion tests carried out in the Lop Nor (N. lat. 40°, E. long. 90°), China. The results of these measurements are as follows; 1. The annual average values or radioactivity of the Air-borne dust collected by the air sample in this period were (2.95±0.02) pμCi/cc (6hr.), and (0.08±0.01) pμCi/cc(120hr.). The maximum radioactivities in this period of investigation were (19.61±0.58) pμCi/cc (6hr.: Feb. 11.'77), and (0.52±0.20) pμCi/cc (120hr.: Jun. 13, '77). 2. The annual average values of radiocativity of the Fall-out collected by gummed papers in this period were (0.23±0.02) mCi/㎢-10d. (6hr.), and (0.13±0.02) mCi/㎢-10d. (120hr.). While the maximum values of radioactivities during the period were(2.31±0.21) mCi/㎢-10d. (6hr.: Oct.1∼11,'77), and (1.63±0.20) mCi/㎢-10d. (120hr.: Oct.1∼11, '77). 3. The annual average value of radioactivities in the Rain-out collected at fixed time daily were (0.84±0.19)×10 exp(-8)μCi/cc(120hr.), and the maximum values of the radioactivities during the period were (8.93±1.02)×10 exp(-8) μCi/cc(6hr.:Oct., 6∼7 '77), and (7.55±1.00)×10 exp(8)μCi/cc(120hr. : Oct.6∼7, '77). 4. The results of the environmental radioactivities caused by these three time-nuclear explosion tests (22th, 23th, and 24th) were much smaller than those of the former tests(1st through 21th). 5. According to the above data obtained, we have found that the maximum permissible concentrations (M.P.C.∼10^-7μCi/cc for water, 4×10 exp(-13)μCi/cc for air) are not reached both in water and in air.

大邱地區의 放射能에 對하여

姜榮浩 慶北大學校 1958 論文集 Vol.2 No.-

We are under the influence of natural radioactivity and artificial radioactivity caused by the experimets with atomic and hydrogen bombs. Among those radioactive isotopes are Sr 90 and Ce 144 which have been proved to be critically harmful to human bodies. Since such radioactive substances are being accumulated in the atmosphere and soil, the measurement of their intensity at present will be of considerable importance in order to make comparison with future data. This experiment was done with subsurface water, rain water, edible vegetables and some other plants available, and the results were as follows; (1) There have no great influence on mean value of background. (2) Mean value for subsurface water were very small compared to that for rain water. (3) By Table 12. it clear that isotopes in rain water have long half lives. According to the Nuclear Decay Chart (General Electric Co. USA 1956). Those isotopes were seemed to be Sb^126(28d), Cr^51(27d), Cm^24(27d), Pa^233(27.4d), Nb^95(35d), Cm^241(35d) and W^185(74d), but chemical analysis for those isotopes were not done yet that it remains to be determined whether rain water actually contains the above mentioned isotopes or not. (4) The wild edible vegetables, in general, are more radioactive than cultivated vegetables. (5) It may be that the geometrical differences of plants have a great influence on the degree of contamination; i.e. plants with big leaves with hairs are more severely contaminated than plants with small leaves and fragile stems.

核分裂飛跡에 依한 黑曜石의 年代測定

姜榮浩,金道聖,高在杰 慶北大學校 1981 論文集 Vol.32 No.-

Charged particles create their tracks in most dielectric solids. These tracks can be viewed under optical microscope after proper chemical etching. Tracks of uranium fission fragments in obsidians also can be viewed after etching by HF solution and used for age dating. In this paper, dating formula and experimental procedures for fission track dating are introduced. And spontaneous and induced fission tracks by thermal neutrons are counted under optical microscope (magnification of 400x). Measured fission track ages of obsidian samples, OM No. 147 and HM No. 40 are 8.86 x 10 exp (5)y and 7.67 x 10 exp(5)y, respectively.

隔膜型液膜에 依한 우라늄抽出

姜永鎬,金春泳 전북대학교 공업기술연구소 1987 工學硏究 Vol.18 No.-

This paper describes the parameters controlling the coupled transport of uranium anions through solid-supported liquid membranes (SLM). The membranes consist of a microporous polymeric with an organic solution of t tertiary amine complexing agent held within the pores by capillary forces. The results of permeation experiments shows maximum uranium flux at about pH 1.3 and 30 vol.% carrier concentration. Its value is about 100μg/cm^2. min