폴리우레탄의 상분리에 미치는 소프트-하드 세그먼트 농도의 영향

이현주,이상만,이상록,김광 동아대학교 공과대학부설 생산기술연구소 1998 生産技術硏究所硏究論文集 Vol.3 No.1

When we compared each reactivity of prepolymers during the reaction process, the mole ratio of [NCO]_T/[OH]_T which was evaluated effectively was 1.78. It was confirmed that effect of polyols was higher than that of isocyanates in comparison of reactivity according to the kinds of isocyanates and polyols. Segmented polyurethane also can be varied using the mole ratio of the polyol and the chain extender. The morphological changes induced to segmented polyurethane elastomers by varying the [NCO]_P/[OH]_P ratio during the second step of polymerization with MDI-polyether system, while keeping almost constant the total hard-segment content(∼70%) and that TDI-polysther system which was increased according to the[NCO]_P/[OH]_P ratio, were studied by means of differential scanning calorimetry(DSC).

`예외상태 상례화`로서의 유신헌법과 한국적 민주주의 담론

이상록 ( Lee Sang Rok ) 역사문제연구소 2016 역사문제연구 Vol.20 No.1

Restoration system is constantly emphasized the `sum` to configure the homogenization that `national` subjects. The core of the Restoration system was a system which encourages competition and end the crisis North Korea, it was composed in the form of economies war(經濟戰). Kim Il Sung`s only ruling bloc of the South felt a sense of urgency overlooking the ruling system, in order to win the economies around merrily under organization of national power, maximize efficiency, the flag of the `sum` for a self-help (自助) to be their labor Warriors It was required to `the people`. System was to require a `search machines` appeal under the leadership of President Park Chung-hee solar distraction of moving subjects to be `being the people`. Restoration system, basing such a rosy future, leaps and bounds growth of population livelihood as the national economy, the welfare state `80s achieved national culture` was the cry develpoment tried to secure national identity. Such efforts but also reap certain achievements, personal body on the train of industrialization in fact, state the desire of the public is constantly being difficult to differentiate and segment stitching iteotgie in the name of `the people`. Effects of consumption desires of the public and cultural needs of the industrial, social and were eager etc. for the rise is amplified, they are viewed from the banner of the `sum` `extravagant and decadent. Enjoyment. Corruption` things to be ruled out in the name of such It was. Oppression of OCD and 70 control of the ruling bloc`s ruling system configurations for homogeneous entity called `citizens` censorship surveillance. Were placed on the ground to strengthen the discipline Tuesday. Restoration regime ended by “personal domination” of the lies that were `Leader` Park on top with a 10.26 death, the state of exception was being continued in sovereign bonds of dictatorship and nationalism as `exceptions` and not `rules`.

마우스 대장암 모델 구축 및 항암제 활성 평가를 위한 예비 연구

김예솔,강봉석,이상은,이은주,이경록,정상헌,박정숙 충남대학교 약학대학 의약품개발연구소 2014 藥學論文集 Vol.29 No.-

Abstract – Aberrant crypt foci (ACF) are early imorphological changes observed in rodents after administration of colon-specific carcinogen such as azoxymethane (AOM). ACF are considered to be putative preneoplastic lesions and are widely used as a surrogate biomarker to rapidly evaluate chemopreventive potential of compounds. The size of colorectal cancer was evaluated after administration of three anticancer drugs, 1 parent drug and 2 prodrugs. The body weights of mice were measured daily and considered as a surrogate for evaluation of general wellbeing. Colons were removed, cut along the longitudinal axis and flushed with phosphate-buffered saline. Each colon was cut into three equal lengths and fixed flat between filter papers. The fixed colon sections were stained with methylene blue. The number of ACF per colon, the number of aberrant crypts observed in each focus and the location of each focus were recorded. After single administration of AOM and multiple doses of anticancer drugs, no significant changes in the body weights of the mice was observed which was recorded for 52 days. However, an expected ACF was not observed in any treated groups. These findings suggest the induction of ACF in mice requires the promotion by dextran sulfate sodium as well as the initiation by AOM.

非品質半導體 As-Ge-Se系의 光構造變化

이종록,梁成伊 梨花女子大學校 韓國生活科學硏究院 1990 韓國生活科學硏究院 論叢 Vol.45 No.-

The photostructure of amophous semiconductor AsGeSe_x for which X concentrations are 52.2, 55.6, 63.6, 79 at.% is investigated. The thin film samples are prepared by the thermal evaporation method. The thin films which are illuminated and annealed are mesured with X-ray diffration and SEM(scanning electron microscopy). When the thin films are illuminated and annealed, the absorption coefficients are increased and the band gap energies are decreased. From the experimental results photodarkening and thermaldarkening were confirmed. It is photodarkening and thermaldarkening that the absorption coefficient is increased and the band gap energy is decreased when the amorphous semiconductor is illuminated and materials increase, then the absorption edge shifts toward the long wavelength. From the SEM the amorphous thin films which are illuminated and annealed are separated into two different phases. The thin films which are illuminated look like the wave shape. This is the spinodal phase separation. The thin films which are annealed look like the globlar shape. This is the binodal phase separation.

대전광역시 양축농가의 축분뇨 관리 실태 및 VOCs 농도 조사

이봉덕,이수기,오홍록,허정민,정기철,김성복 충남대학교 농업과학연구소 2005 농업과학연구 Vol.32 No.1

This study was carried out to investigate the style of livestock house, concentration of malodorous substances of livestock feces and livestock houses in Daejeon area. Among the livestock houses investigated, as most of cow pens(94.5%) have sawdust or chaff on the bottom, there was no leakage of feces out of pen. Most pig pens adopted slury style, but some of them currently use buffering material on the bottom. It is thought that there will be no possible contamination leakage. When it comes to hen house, all the broiler house use litters on the bottom and all the layer house use scrapper. It is also thought that there will be no possible contamination leakage. 3 out of 12 deer pens used buffering material on the bottom, 10 places were maintained in a traditional method, and 7 places left possibility of contamination leakage considering whether the roof was installed or not. The contents of ammonia, amine and volatile fatty acid in fresh feces were lower compared to rotten feces, but the concentration of sulfur-containing matter - hydrogen sulfide, methylmercapthan and ethylmercapthan were higher compared to rotten feces. In the case of malodorous ingredient in livestock houses, only small amount of ammonia and hydrogen sulfide were detected in pig pen and hen house, and other ingredients were not detectable. And those who are engaged in animal husbandry reacted negatively to the use of feed additives for decreasing malodor. In conclusion, it is not worrisome that contamination can be leaked out of animal raising facilities. But if we take into consideration that the point of investigation time is wintry season, there should be more considerate attitude. And feed additives for decreasing malodor need establishing criteria in the manufacturing process.

梔子栢皮湯이 膽道結紮로 誘發된 白鼠의 損傷肝에 미치는 影響

李相祿,田炳薰,禹元洪,鄭遇悅 圓光大學校 韓醫學硏究所 1994 원광한의학 Vol.4 No.1

Prolonged bile duct ligation; a new experimental model for cirrhosis in the rat was carried out to elucidate the effect of Chijabakpitang(梔子柏皮湯) inhibiting the progress of thought to be enough to develop liver fibrosis or cirrhosis. The development of fibrisis or cirrhosis was progressive and associated with ascites. After the 7 week administration of Chijabakpitang on the bile duct ligation performed rat, the body weight, the hematological value, and the biochemical changes such as total bilirubin, direct bilirubin, asparate aminotranferase, alanine aminotransferase, akaline phosphatase, and the level of hydroxyproline in the liver tissue of the rat were examined. The results obtained were as follows. 1. The body weight in Chijabakpitang-administered experimental groups was inclined to increase, but it didn't significantly increase. 2. WBC counts significantly dicreased in Chijabakpitang-administered experimental groups, especially the decreasing value of serum WBC count in 1ml of Chijabakpitang-administered experimental group B was significant for all experimental duration. 3. Total bilirubin level decreased in 1ml of Chijabakpitang-administered experimental group B, and direct bilirubin significantly decrease in all Chijabakpitang administered experimental groups. 4. ALP level decreased in 1ml of Chijabakpitang-administered experimental group B, and ALT and AST significantly decrease in all Chijabakpitang-administered experimental groups. 5. The level of hydrwxyproline in the liver tissue of all experimental group significantly decreased.

액상산화반응장치의 비정상상태

이상록 동아대학교 공과대학 부설 한국자원개발연구소 1988 硏究報告 Vol.12 No.2

A method of operating for the steady and unsteady state in liquid phase oxidation reactor is proposed. It is safe to keep the state of reactor in safe region on phase plane for steady state operation and to operate the feed concentration to keep the state of reactor in the safe region for unsteady state operation. The tolerance region to safe operation decreased with the feed concentration in phase plane.

성장기 흰쥐의 족삼리(ST-36) 침자가 혈액성분에 미치는 영향

이성동,윤범철,류정록,최태암 高麗大學校 倂設 保健大學 保健科學硏究所 2000 保健科學論集 Vol.26 No.1

Acupuncture, an important branch of oriental medicine, has been practiced for many centuries and has been proved to be an effective treatment for all sorts of disease. However, the exact mechanism on effects of acupuncture was uncertain. Recently investigation for the mechanism of acupuncture has concentrated to human and animals. So, This study was to determine effects of ST-36 acupuncture stimulation on blood component in growing rats. For this study, 24 male Sprague-Dawley rats weighting 159?13g were randomly assigned into three groups; A4 group, A10 group, and control group. In A4 group, four times acupuncture were performed at both ST-36 every other days and in A10 group, ten times acupuncture. The results obtained were as follows; 1. Total protein level was significantly increased, particularly in A10 group; albumin level was also significantly increased. 2. Serum glucose level was significantly increased. 3. Triglyceride level was significantly increased in A4 group; phospholipid level had no changes; free fatty acid level was significantly decreased particularly in A10 group. 4. Total cholesterol level was rarely affected by acupuncture: HDL-C and LDL-C levels were affected by the number of times of acupuncture, that is, HDL-C levels were increased, and LDL-C level decreased in A4 group, while HDL-C level decreased and LDL-C level increased in A10 group. 5. Serum amylase activity was not significantly changed.

공학윤리교육의 목표와 내용에 관한 연구

이상목,이상록 동아대학교 교육대학원 2002 동아교육논총 Vol.28 No.-

The goal of this study is to survey the object and contents of engineering ethics education. The reason why engineering students must study engineering ethics is that the work of engineers can affect public health and safety and can influence business practice and even politics. The courses in Engineering ethics education is to sensitize students to important ethical issues before they have to confront them. Therefore students know what siuations other engineers have faced and know what to do when similar situations arise in their professional career. And students also learn techniques for analyzing and resolving ethical problems when they arise. Finally, This study considers the rights and responsibilities of engineers, environments, and codes of ethics.

퍼어지-순환흐름 생물반응장치의 안전조작

이상록,김덕술 동아대학교 공과대학 부설 한국자원개발연구소 1994 硏究報告 Vol.18 No.1

A method of Safe operation of bioreactor with purge-recycle streams which the substrate concentration is inhibited by the specific growth of the biomass is proposed. A region of the phase plane (safe operating region) in which all trajectories lead to the desired steady in bioreator is determined, and a method for determining the safe start-up procedure is proposed by which the washout of raection system before approaching a desired steady state can be prevented during the start-up operation.