회복탄성계수(M_R)시험법 연구

황용진,문홍득 진주산업대학교 1997 산업과학기술연구소보 Vol.- No.4

Recently, the rational methods of pavement design and analysis using the resilient modulus as fundamental input material property have been increasingly adopted in major advanced countries. Since the development of 1986 AASHTO Guide for Design of Pavement Structures, many researches concerning reliable testing method have been actirely performed. Anticipating the use of resilient modulus based on pavement design and analysis methods in Korea in the near future, development of a standard test method of resilient modulus is needed suitable for subgrade soils in Korea. This paper presents a standard resilient modulus testing procedure suggested in this study.

기부자 요인이 관계품질과 기부의도에 미치는 영향

황용진,김형길 한국로고스경영학회 2011 한국로고스경영학회 학술발표대회논문집 Vol.2011 No.5

본 연구는 종교방송 기부자들의 종교적요인인 종교생활기간과 방송청취시간이 기부행동을 유도하는 요인으로서 어떠한 작용을 하는지를 고찰하고자 한다. 특히 기부자요인이 관계품질과 기부의도에 미치는 영향에서 기부자의 종교생활형태의 한 요소인 종교생활기간과 종교방송청취시간이 기부자의 기부요인, 관계품질과 기부의도에 영향이 미칠 것으로 판단하여 이론적 배경을 중심하여 연구모형과 가설에 의한 실증연구를 통해 검증하였다. 종교생활기간은 기부자요인 요소인 자아존중감과 신앙성숙도와 기부기관관계정도에 영향을 미치며 방송청취행태인 청취시간은 신앙성숙도와 기부기관관계정도에만 영향을 미쳤다. 관계품질과 기부의도는 종교생활기간이나 방송청취시간 모두가 영향을 미치는 것으로 나타났다. 따라서 기부자의 기부의도를 유도하고 또한 이를 지속적으로 유도하기 위해 기부자의 종교생활기간 특성과 방송청취시간에 따라 각각의 다른 개념으로 세분화하고, 차별화된 기부자 관리가 필요함을 확인함으로 지금까지 연구에 비교적 소외되었던 종교생활과 방송청취행태에 관한 연구 필요성에 대한 중요한 시사점을 주었다.

CM制度의 國內 適用方案에 對한 硏究

황용진 진주산업대학교 건설기술연구소 1998 건설기술연구소보 Vol.1 No.-

Since 1997, the Korean Government has increasingly introduced CM(Construction Management) system which is a new project delivery system, with the opening of the construction market. In case of Korea, not only the applicable criterion of CM but also definition of that has not still established. This study aims to minimize trial and error that may occurre when CM is applied to the domestic construction by examining the background and progress of the American CM system. Consequently, in this study, proper method to apply CM to this country is suggested by synthesizing CM business standards of GSA and other organization and analyzing the role and responsibility of CM

건설공사 계약조건의 클레임 관련조항비교 연구

황용진 진주산업대학교 건설기술연구소 1998 건설기술연구소보 Vol.1 No.-

In this study, with a purpose to establish the standard construction contract conditions, the FIDIC conditions of contract and ther corresponding legal systems from the various domestic laws and regulations, used as the construction conditions, were compared. The study shows problems such as inconsistence and atypicality between current provisions and FIDIC contract. The possibility of claim occurrence in Korea construction market is significant. Through a comparison of domestic and foreign construction contract, the study presents that domestic contracts don't have provisions about the procedure of submission, engineer's responsibility and authority, and effective procedure of claims. The study also presents techinical considerations under the FIDIC Contract by Employer and Contractor.

대수응력모형과 레이놀즈응력모형에 의한 표층밀도류장의 연구

황용진,김기홍 진주산업대학교 2000 산업과학기술연구소보 Vol.- No.7

The programs of two models(Reynolds Stress Model and Algebraic Stress Model) were developed and the distribution of mean velocity and buoyancy by RSM and ASM were computed to compare with experimental data in two-dimensional buoyant surface jet. The results of numerical analysis are derived : 1. RSM and ASM yield satisfactory prediction of distribution of mean velocity and buoyancy without regard to densimetric Froude number F_do in momentum domain region and transition region. 2. But, the computed results of distribution of mean velocity and buoyancy by two models are not in agreement with the experimental data correctly without regard to densimetric Froude number F_do in buoyancy domain region.

밭作物의 灌漑用水量 算定 : 大豆를 중심으로 for Soybean

황용진 진주산업대학교 건설기술연구소 1998 건설기술연구소보 Vol.1 No.-

This study was carried out to determine the optimum irrigation level for upland crops especially soybean through the analysis of their evapo-transpiratiion, growth and yield. The optimum irrigation level for each upland crop will enable us to calculate the project irrigation requirement for a design year. In this study, two varieties of soybean, Milyang 31 and Eunha, were cultivated in lysimeters in the farm of Chinju National University. The levels of irrigation were 29-26%, 25-22% and 21-18%, respectively. The soil moisture contents were maintained within a narrow range. From the experiment and analysis, the conclusions are derived as followings; 1. The numbers of branches, main stems and pods per plant, and the 100-grain weight of Milyang 31 and Eunha tended to increase as the irrigation level were changed from 21∼18% through 29-26% to 25-22%. 2. As the optimum irrigation level og 25-22%, the daily average evapo-transpiration of Milyang 31 and Eunha were 3.21㎜/day, 3.25㎜/day. The total evapotranspirations of Milyang 31 and Eunha were 276.23㎜, 312.11㎜. 3. The effective of the rainfall in the design year was 57.76% in case of Milyang 31 and 50.35% in case of Eunha. The net project irrigation requirements of Milyang 31 and Eunha were 288.23㎜ and 281.36㎜ respectively. 4. The intermittent irrigation days of both Milyang 31 and Eunha were calculated as 4days. The net irrigation requirement at a time was calculated as 28.72㎜, 29.04㎜ respectively.

土壤含水率 測定을 위한 計測器 開發 : 1. Cu-pipe를 利用한 Sensor의 特性 1. Characterics of the Cu-pipe sensor

黃龍鎭,金泰圭,愼英喆 진주산업대학교 농업기술연구소 1988 農業技術硏究所報 Vol.1 No.-

本 硏究는 土壤水分을 正確하게 測定하기 위한 貫入用 Sensor 開發을 目的으로 實施하였다. 貫入用 Seosor는 圓簡形 銅管사이에 絶緣材를 揷入하여 만들었으며 이 Sensor를 土壤에 貫入하여 土壤水分含量에 따라 변화는 銅管 양측의 電氣抵抗을 測定하므로서 土壤水分을 알 수 있게 하였다. 實驗結果는 電氣抵抗値는 Sensor의 直徑이 적을수록 絶緣材 間隔이 클수록 증가하였으며 測定誤差는 直徑차이에 관계없이 絶緣材 間隔이 13mm에서 적었고 Sensor의 直徑 12.6mm, 絶緣材 間隔 13mm인 것이 비교적 양호하였다. 또한 電氣抵抗値는 土壤含水率이 커짐에 따라 指數函數的으로 減少하였고 Mc=aR^-b의 形態로 나타났다. 대부분 Sensor가 指數 b의 값이 크게 나타나 直線性이 양호하지 못하였고 標準誤差의 값도 크게 나타났으며 土壤水分 10%以下와 30%以上에서는 정밀한 計測이 어려울 것으로 생각된다. This study aimed at developing an interpenetrated sensor for exact measurement of soil moisture. The interpenetrated sensor was a cylindrical Cu-pipe with insulation gap in the middle when this sensor was interpentrated into the soil, the electric registance value of both ends of the Cu-pipe changed according to the moisture content of the soil. The soil moisture content could be measured by the change of electric registance value. The results were as follows : As the diameter of sensor was smaller and the insulation gap was larger, the electric registance value increased. The measurement error was small in the case of 13mm insulation gap irrespective of the sensor diameter and smallest in the case of 13mm sensor diameter and 13mm insulation gap. As the soil moisture content increased, the electric registance value decreased exponeutially. Their relation was found to be MC=aR^-b. The value of exponent b and the standard error was great in most sensors. Their graphs didn't show straightness and the exact measurement of soil moisture content was difficult in the range below 10% and above 30% of soil moisture content.

晉州地方에 있어서 降雨特性에 關한 硏究

黃龍鎭,宋錫銀 진주산업대학교 1970 論文集 Vol.4 No.-

In this study, I studied in order to know the precipitation surrounding Chinju area in a given time, the results obtained in this study are as follows: ① As the materials, I quoted from the paper of automatic raingage in Yungnam Land Construction Bureau of Nam River Dam. ② I select the precipitation in 24 hours, above 80㎜. ③ I gained the following formula, after I had studied the statistic analysis. i. e. γ_T=R_24/24(4.708/√R-0.0036) ④ I doubt whether this poor formula would be useful or not, because the period of observation is too short. (Standard Deviation σ=6.57)

洛東江 流域의 水文學的인 調査

黃龍鎭 진주산업대학교 1971 論文集 Vol.8 No.-

The Main Stream of the Nagdong River Originates in Mt. Taebaek, flows through the middle of Kyungsang-Do and empties into the South sea in Kimhae-Kun, Kyungsangnam-Do. The total length of its water Course is 525.75 km and the area of its drainage basin is 23,859.75㎢, So that it is one of the three largest rivers in Korea. The main purpose of this studies is to establish the multipurpose development project in order to exploit effectively and actively all the natural resources contained in the entire drainage basin belonging to the Nagdong River System, including the it self. a great amonnt of basic investigations have been carried out by collecting, analysing and studying the statistical data in Connection with industry, agricultural, hydrology, etc. in order to achieve the given purpose.

適正 確率降雨度式 算定에 關한 考察 : 晋州地方을 中心으로 On Jinju Area

黃龍鎭,金羽中 진주산업대학교 1984 論文集 Vol.22 No.-

This study was carried out to find most suitable formulaas for prabable rainfall intensities to the return periods in regard to it with analysis for charateristics of short­term (30.60.120.180.360 minutes) rainfall intensities according to the return periods at JinJu district. Above mentioned formulas induced by study can he contributed to the calculation of runoff meaeurenents for urban sewerage system and a small drainage basin. The results of this study are summarized as follows. 1. Standard diviation of Japenese type came out as the most small value for 1.41∼1.97 among the probable rainfall intensity formulas. 2. Standard diviation by the precision method were less than that by the specific coefficient method. 3. The most suitable probable rainfall intensity fomulas for the return periods at JinJu district, It is as table 4.