Polyphenyleneisoxazole 의 물리적 특성

홍석주 한국화학공학회 1971 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.9 No.3

A highly crystalline polyphenyleneisoxazole from the condensation reaction of terephthalohydroxamoyl chloride with 1, 4-diethynylbenzene was consisted of smaller conjugation, which was demonstrated by the electronic spectra. The electric conductivity was decreased with elevating temperature. The corelation of electric conductivity with crystalline structure was studied.

안전마을의 지속가능성에 관한 연구 -범죄예방환경설계 가이드라인 중심으로-

홍석주,빈혜진 한국생활환경학회 2019 한국생활환경학회지 Vol.26 No.6

The rate of crime is increasing in a poor and fragile residential environment. Since 2004, the “Design Guidelines for Crime Prevention” released by the National Police Agency, various guidelines on CPTED have been published. In 2014, the Building Act was enacted for the purpose of establishing crime prevention standards to prevent crime and create a safe living environment. At this point, this study investigates the current status of crime prevention projects implemented as a standard notification and local government guidelines, by analyzing various case studies, it is intended to create a safe village for the residents and to find sustainable ways of environmental prevention. Selected areas where the crime prevention project was carried out in 2015 and safety villages were established in 2016. In order to discover the indicators applied to the manual, we extracted the architectural city planning elements that considered the connection of the preceding research and crime prevention environmental design practice strategy elements. the status of the facilities was analyzed. As a result of the revised CPTED guidelines, it is expected that the improvement of the physical environment, the participation of the residents and the activities of the residents will be used to develop the sustainable safety village.

GPS와 무선통신망을 이용한 지능형 버스 제어시스템에 관한 연구

홍석주,Seok-Joo Hong 한국정보기술전략혁신학회 2005 情報學硏究 Vol.8 No.1

This paper again to present position of a bus that is running in bus government organization small grasp and Can instruct control about the vehicles progress speed in government organization small to bus driver. Therefore, Inform a bus that own wants to ordinary people who carry transfer communication terminal is situated to where present, ad Do by purpose that offer system that inform running information of a bus to ARS and FAX, internet and ordinary people through PC communication. Also, Intelligence style bus control system that see also includes function that do as can guide arrival expectation depot automatically without driver's manufacturing when run a bus.

破壞靭性 K_RC 決定을 위한 R-曲線法의 基礎的 硏究

홍석주 조선대학교 동력자원연구소 1988 動力資源硏究所誌 Vol.10 No.1

This paper was carried out to research the determination of critical resistance value K_RC, by using the R-curve method. The crack extension resistance curve (R-curve) is a plot of material resistance values (KR) Vs. Crack extensions value(Δa). The main conclusions are as follows. 1. The shape of R-curve of a material having a given thickess does not depend on initial crack length a_o. 2. The Value of critical stress Intensity factor K_RC of a material having a given thickness and specimen size does not depeud on the initial crack length, but retains a constant Value. 3. R-curve depends on specimen thickness, but does not depend on loading method.

빌라 로톤다(Villa Rotonda)와 빌라 피사니(Villa Pisani)의 비교에 관한 연구

홍석주,이은정 한국디지털건축·인테리어학회 2012 한국디지털건축인테리어학회 논문집 Vol.12 No.4

The works of Vicenzo Scamozzi, the successor of Andrea Palladio are able to be comparable with Palladio’s works in various ways. When comparing Villa Pisani of Scamozzi with Villa Rotonda of Palladio, their difference is evident. Both Villa Pisani and Rotonda are vacation villas located on low hills and have the magnificent beauty that overpowers their surrounding rural sceneries. However, Scamozzi doesn’t show an obsession about Palladio’s proportion. Palladio expressed the symbolic meaning of the villa as the center of surrounding rural scenery by having same porticos for all four facades of a square. On the contrary, Scamozzi built a portico only for one façade and constructed open loggias with serliana motif for other three facades. These loggias help lighting and ventilation of rooms located behind of loggias. Geometric innocence that is pursued by Palladio’s villa can be understood as the archeological classism based on the nature interpretation from a classical viewpoint. On the contrary, Scamozzi pursued his own architectural characters that apply buildings to fit to their environment.

과학자들이 알아두면 좋을 특허 제도에 대한 지식

홍석주 한국환경농학회 2023 한국환경농학회 학술대회집 Vol.2023 No.0

본 강연에서는 발명부터 특허출원과 특허등록에 이르기까지 연구자들이 알아 두어야 할 ‘과학자들이 알아두면 좋을 특허제도에 대한 지식’을 알려주고자 한다. 우선적으로, 특허요건 및 특허출원, 심사에 대한 법적 절차를 설명함으로써 기본적인 특허출원 및 등록절차를 이해하는데 도움을 주고자 하며, 본 학회의 주요학술 활동분야인 토양 및 수질 생태환경, 자원순환 농업 구축, 농작물 보호, 농업환경화학, 환경분석화학, 환경미생물, 환경독성 등에 대한 연구 결과물이 권리화(국내특허등록)된 사례를 살펴봄으로써, 연구성과물에 대한 특허전략을 잘 수립할 수 있도록 함으로써, 연구성과의 권리화를 극대화하는데 도움을 주고자 한다.

SM45C材의 龜裂成長擧動에 미치는 Over Load의 影響

홍석주 조선대학교 동력자원연구소 1993 動力資源硏究所誌 Vol.15 No.1

In this study, the fatigue test loading constant repeated load over load was carried out with the SM45C specimen of general structure steel, Also, in the over load, the crack retardation phenomenon was discussed. The main conclusions obtained are summarized as followes. 1. From the fatigue test results loaded by constant repeated load, the fatigue crack invariable c and material constant m(c=4.263×10^-9, m=2.872) were concorded with the existing reserch results. In the experimental method of ΔK reduction, ΔK_th is 96.033㎏/㎜^3/2. 2. In the crack nose generated by over load, the compressive residual stresses were gradually lost by loading the repeated load continually, and in fracture line, nearly ceased The growing crack with residual stress lose was confirmed. 3. The plastic zone size formed on crack tip by over load was related to the linear with the compressive residual stresses, and the crack retardated phenomenon by over load predominantly effected by the compressive residual stress was considered.

Surface Modification of Bentonite for the Improvement of Radionuclide Sorption

홍석주,김주은,엄우용 한국방사성폐기물학회 2022 방사성폐기물학회지 Vol.20 No.1

Bentonite is the most probable candidate to be used as a buffer in a deep geological repository with high swelling properties, hydraulic conductivity, thermal conductivity, and radionuclide sorption ability. Among them, the radionuclide sorption ability prevents or delays the transport of radionuclides into the nearby environment when an accident occurs and the radionuclide leaks from the canister, so it needs to be strengthened in terms of long-term disposal safety. Here, we proposed a surface modification method in which some inorganic additives were added to form NaP zeolite on the surface of the bentonite yielded at Yeonil, South Korea. We confirmed that the NaP zeolite was well-formed on the bentonite surface, which also increased the sorption efficiency of Cs and Sr from groundwater conditions. Both NaP and NaX zeolite can be produced and we have demonstrated that the generation mechanism of NaX and NaP is due to the number of homogeneous/heterogeneous nucleation sites and the number of nutrients supplied from an aluminosilicate gel during the surface modification process. This study showed the potential of surface modification on bentonite to enhance the safety of deep geological radioactive waste repository by improving the radionuclide sorption ability of bentonite.

배가스 처리계통에 적용되는 재질의 부식특성

홍석주,홍성호,도정만 한국표면공학회 2006 한국표면공학회 학술발표회 초록집 Vol.2006 No.-

Base Sequence의 변화가 이중나선 Oligonucleotides의 열적 안정성과 Dynamics에 미치는 효과

홍석주,유승렬,김은희,권태익,허성호 충남대학교 기초과학연구소 1997 忠南科學硏究誌 Vol.24 No.2

We have synthesized four model oligonucleotides containing biologically significant base sequence and observerd the effects of variation of the base sequence on thermal stability and dynamics of their double helical structures with NMR spectroscopy and UV melting experiments. The results showed that variation of the base sequence could cause no observable change in the global structure of oligonucleotide double helices but cause perturbation of the local structure. This resulted in the change in dynamics of double helices and furthermore in a significant effect on thermal stability. Binding of berenil to each oligonucleotide also had an effect on dynamics and thermal stability of its double helical structure differently upon its base sequence.