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천연가스 민간 직도입 확대에 따른 석유화학산업의 도시가스 소비 변화 연구
강병욱 산업연구원 2022 산업연구(JIET) Vol.6 No.1
본 논문은 석유화학산업의 천연가스 민간 직도입 확대가 기존 도시가스 수요함수에미치는 영향을 분석한다. 강병욱(2019), 박철웅·박철호(2019a, 2019b) 등 산업용 도시가스 수요함수에 관한 주요 선행연구에서 특징적인 부분은 2010년대 중반 이후 석유화학산업 도시가스 수요함수의 상대가격 탄력도가 상당히 상승했다는 것이다. 이에 대한 주요 요인으로 지목된 것은 석유화학업 내의 듀얼보일러 보급 확대와 원료용 도시가스소비 확대였다. 본 논문에서 분석한 결과에서도 석유화학산업 도시가스 수요의 상대가격 탄력도는 2010년 즈음까지 1 정도에 머물렀으나 2010년 중반을 지나면서 탄력도는3 정도까지 대폭 상승했다. 그러나 새롭게 발견된 것은 2018년 이후 석유화학업의 직도입 천연가스 소비 급증과 함께 상대가격 탄력도는 다시 0.3 이하로 급격히 하락했다는점이다. 이는 석유화학산업 내에서 가격탄력도가 높은 성격의 도시가스 소비 물량이 직도입 천연가스로 대체되었기 때문으로 분석된다. 따라서 도시가스 소비에 있어서 가격민감도가 높은 소비처의 경우, 기존 도시가스 소비를 민간 직도입 천연가스로 대체하면전체 도시가스 수급 안정성을 높일 수 있을 것으로 판단된다.
姜秉旭 영남대학교 공업기술연구소 1984 연구보고 Vol.12 No.1
검수삭제 In this paper, an efficient method for simplifying switching functions by computer was presented. The same format of input/output functions to the usual one was designed, appropriate data structures were introduced to save storages and several efficient procedures were choosen to improve computiong speed. It was implemented with FORTRAN-77 to maintain compatibility among computer models and it's correctiness and performance were tested with various sample data on VAX-11 system.
강병욱 嶺南大學校 工業技術硏究所 1989 연구보고 Vol.17 No.2
As the logic circuits become more complex, the testing problem becomes more complex as well and the automatic test pattem generation methods becomes more important. In this paper, unique sensitization technique and multiple backtracing and the technique of backtracing termination of the head lines, were introduced to existing algorithm to improve the generation time. A program based on the modified algorithm was written in C language and tested on IBM-PC/AT with various logic circuits. From the results, a remarkable speed improvement was substantiated.
姜秉旭 영남이공대학 1978 論文集 Vol.7 No.-
The architectures of various logic circuits utilized in computer and other devices have become more complex. Because of considerable probability of consequent errors, it is necessary to adapt self correction technique in other to maintain reliabity of logic circuits. For the purpose of this, redundancy technique is generally used and LSr makes possible to realize it. In this paper a synthesis procedure for designing a single-failure-tolerant shift register, which is one of basic parts in arithmetic units of computer, is. presented. In addition to failure-tolerant function, parallel data input-output.. shift-right and left functions are also encountered.
강병욱 한국교통대학교 2014 한국교통대학교 논문집 Vol.49 No.-
Variations in PM10 concentration from 7 Chungcheongbuk-do air monitoring stations operated by the government were analyzed in 2013. The average concentrations of PM10 in seven sites were as follows (Bokdae (71 ㎍/㎥) > Sacheon (65 ㎍/㎥) > Chungju (64 ㎍/㎥) > Songjeong (61 ㎍/㎥) > Ochang (57 ㎍/㎥) > Danyang (54 ㎍/㎥) = Jaecheon (54 ㎍/㎥)). Statistical analyses have shown a good correlation (0.79 ∼ 0.98) bwtween 7 air monitoring stations. The results may suggest that air pollution levels in this study area are affected considerably by long-range transport from external areas, such as the coastal zone in China and other cities in South Korea. The evaluation of backward trajectories showed that the highest PM10 concentration levels occurred during NW weather conditions, which influenced by the emission sources of China area. The low PM10 levels generally occurred during E-S weather conditions, which influenced by the East sea and south of Yellow Sea.
姜秉旭 영남대학교 공업기술연구소 1985 연구보고 Vol.13 No.2
In this paper, a simple recognition procedure of handprinted Korean characters is proposed. The procedure is based on the code table of 58 frequent character elements, and the code table was generated by the reduced classes of line segments i.e, "-", "1" and "0". With this procedure, 57.2 per cent of character elements are recognized by the numer of line segments and nodes and 85.7 per cent of remains are recognized by the line segmets which are conected to the maximum node. Four leften vowels are recognized by the existance of any line segment at the leftsied of the top-vertical line segment.