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대구지구의 환경방사능조사연구 (제5보) : 1968.1-1969. 12 Jan. 1968-Dec. 1969
강영호,이상윤 慶北大學校 1970 論文集 Vol.14 No.-
An investigation of the environmental radioactivity of rain water, fallout, and air-borne dust in Taegu area (E. long. 128˚37′, N. lat. 35°53′) had been made during a period of January, 1, 1968 to December, 31, 1969. During this period, there were two-times nuclear explosion tests by Red China. The results of these measurements are as follows; 1. The annual mean values of radioactivity on the rain-water collected at fixed time daily were (0.02±0.01) μμCi/c. c. (1968) and (0.02±0.01) μμCi/c. c. (1969). The maximum value of the radioactivity during the period was (0.12±0.04) μμCi/c. c. (May. 13. 1968). 2. The annual mean values of radioactivity of the fallout collecetd by gummed papers in 1968 and in 1969 were (28.7±6.2) pCi/ft^2-10days and (59.9±7.5)pCi/ft^2-10days respectively. The maximum value of the radioactivity during the period was (490.9±6.9) pCi/ft^2-10days. (July. 11-21. 1969). 3. The annual mean values of radioactivity of the air-borne dusts collected by the air sampler in 1968 and in 1969 were (10. 38±0.06) pμCi/c. c. and (4.60±0.04) pμCi/c. c. respectively. The maximum radioactivity in this period of investigation was (40.60±0.50) pμCi/c. c. (Sept. 5. 1968) 4. The results of the environmental radioactivitiy caused by these two-nuclear explosion tests (8th, 9th) were much smaller than those of the former tests (1st through 7th).
강영호,Khang, Young-Ho 대한예방의학회 2005 예방의학회지 Vol.38 No.3
Evidence on the relation of socioeconomic position (SEP) with health and illness is mounting in South Korea. Several unlinked studies and individually linked studies (longitudinal study) showed a graded inverse relationship between SEP and mortality among South Korean males and females. Based on the mortality relative ratios by occupational class reported in the published papers of South Korea and western countries, the magnitude of the socioeconomic inequality in mortality in South Korea seems to be similar to or even greater than that in western industrialized countries. A potential contribution of health related selection, health behaviors and psychosocial factors to explain this socioeconomic inequality in mortality was discussed. It was suggested that early life exposure measures would demonstrate a greater ability to explain socioeconomic inequalities in all-cause mortality than the above pathway variables in South Korea. This is based on the cause-specific structure of mortality among the South Korean population who have a relatively greater proportion of stomach cancer, hemorrhagic stroke, liver cancer and liver disease, and tuberculosis, which share early life exposures as important elements of their etiology, than western countries. However, the relative contribution of early and later life socioeconomic conditions in producing socioeconomic inequality in health may differ according to the outcome, thus remains to be investigated.
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
Cellulose Nitrate에 依한 Alpha 粒子의 檢出과 그 特性
姜榮浩,金道聖 慶北大學校 物理化學硏究所 1984 硏究論文集 Vol.5 No.-
We studied alpha particle detection characteristics of cellulose nitrate. LR115-Type2 and CA80-15 of Kodak Pathe'. With etchant of 60℃, 10% NaOH, optimum etching times for LR115-Type2 and CA80-15 are 90min and 30min, respectively. The relation between track hole diameter and etching time is same with Pareztke's results and energy dependence of track hole diameter is analogous to Benton's result.
Cellulose Nitrate에 依한 Alpha 粒子의 檢出과 그 特性
姜榮浩,金道聖 慶北大學校 1982 論文集 Vol.34 No.-
We studied alpha particle detection characteristics of cellulose nitrate, LR115-Type2 and CA80-15 of Kodak Pathe´. With etchant of 60℃, 10% NaOH, optimum etching times for LR115-Type2 and CA80-15 are 90min and 30min, respectively. The relation between track hole diameter and etching time is same with Pareztke's results and energy dependence of track hole diameter is analogous to Benton's result.
姜榮浩,金道聖,高在杰 慶北大學校 物理化學硏究所 1984 硏究論文集 Vol.5 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 formular 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 × 10 exp(5)y and 7.67 × 10 exp(5)y, respectively.
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.
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.