희생양극법에 의한 발전소 복수기의 음극방식효과에 대한 수치해석

김장순,배병홍,김의현,이충근,김종영,Kim, Jang-Sun,Bae, Byeong-Hong,Kim, Ui-Hyeon,Lee, Chung-Geun,Kim, Jong-Yeong 한국재료학회 1995 한국재료학회지 Vol.5 No.7

희생양극법에 의한 발전소 복수기 수실의 음극방식 효과를 수치해석을 이용하여 알아보았다. 복수기는 해수설비중의 하나로 여러 재질로 구성되어 있는데 방식을 하지 않은 경우 수실과 tubesheet와의 갈바닉 부식이 심하게 발생되며, 수실벽과 갈바닉 부식이 심하게 일어나는 부위에 희생양극을 부탁하면 많은 방식효과가 있음을 알 수 있었다. 수치해석 결과의 타당성 검토로서 model test를 행한 결과 수치해석 결과와 실험치가 잘 일치하였다 The effect of cathodic protection by the sacrificial anode attached to condenser waterbox of power plant was investigated using numerical analysis. The condenser is consisted of various materials. So in case of no protection, the serious galvanic corrosion between waterbox and tubesheet was observed. If sacrificial anodes were attached to the wall of waterbox or the area corroded galvanically, the large protection effect was showed. To demonstrate the validity of numerical analysis results, model test was executed. The numerical solution was consistent with the experimental vague well.

발전소 복수기의 최적 방식조건 설정에 관한 수치해석 연구

김장순,김의현,김종영,Kim, Jang-Sun,Kim, Ui-Hyeon,Kim, Jong-Yeong 한국재료학회 1996 한국재료학회지 Vol.6 No.4

전기방식법중의 하나인 음극방식법은 많은 해수설비를 갖추고 있는 발전소에 적용되고 있는 설비지만 운용의 측면에서는 적절하지 못한 방식조건으로 많은 문제점이 노출되고 있다. 본 연구에서는 설비지만 운용의 측면에서는 적절하지 못한 방식조건으로 많은 문제점이 노출되고 있다. 본 연구에서는 해수설비중의 하나인 발전소 복수기의 음극방식설비를 해석 대상으로 하여 가장 많이 사용되는 희생양극 재질인 Zn 양극을 입구측 파이프, 수실벽 및 천장등 여러위치에 부착한 경우 전위분포 및 전류밀도분포를 구하여 최적방식조건을 찾아보았다. 또한 전류밀도값을 Faraday 법칙을 이용부식속도로 환산하여 galvanic 부식정도와 방식정도를 평가하였다. 그 결과 희생양극을 galvanic 부식이 심하게 일어날 것으로 예상되는 위치에 부착하면 방식효과가 가장 크게 나타남을 알 수 있었다.

Al - brass 와 Ap - bronze 복수기 재료의 해수부식 특성에 미치는 Sulfide 와 계면활성제의 영향

김성수,우선기,이홍로,김장순,김재철,김종영,김정수 ( Sung Soo Kim,Sun Ki Woo,Hong Ro Lee,Jang Soon Kim,Jae Chul Kim,Jong Young Kim,Jong Soo Kim ) 한국부식방식학회 1997 Corrosion Science and Technology Vol.26 No.1

경배와 찬양 예배 콘텐츠 제작을 위한 효과적인 드럼 설치방법 연구

김장순 ( Kim Jang-soon ) 한국기독교음악학회 2019 기독음악·문화 Vol.4 No.-

현대는 한 개인이 과거 방송 매체를 통해 접하는 수동적으로 시청만하는 수동적 콘텐츠 시대가 아니라 이젠 직접 콘텐츠 제작에 직·간접적으로 참여하는 능동적 콘텐츠 시대라 할 수 있다. 시대를 따라 교회도 콘텐츠 제작 시스템 등을 도입하여 콘텐츠를 소비하기도 하고, 제작해서 배포하기도 한다. 드럼 사운드를 다른 악기와 분리하는 것은 콘텐츠 제작에 있어 중요하다. 드럼은 음압이 크기 때문에 다른 악기와 같이 녹음할 때 다른 악기 마이크에 드럼 사운드가 입력될 가능성이 많기 때문이다. 본 연구에서는 노출, 아크릴 드럼 쉴드, 간이 부스, 고정형 드럼 부스 설치에 대하여 설명하고 장·단점을 비교하여 현실적으로 좋은 방법에 대하여 제시하였다. 노출 설치를 제외하고 각각의 방법은 드럼 사운드를 다른 악기 사운드와 구분하기에 좋은 방법이긴 하지만 그 중 고정형 드럼 부스를 설치하는 것이 가장 좋은 방법이라 할 수 있다. 반면에 가장 현실적인 것은 간이 부스로 드럼 사운드의 완벽한 분리는 아니지만 소형 녹음실에 와 있는 것 같은 효과를 저비용으로 해결할 수 있기 때문이다. 본 연구를 통해서 예배 악기 중 드럼을 효과적으로 콘텐츠화 하는 것에 대하여 언급하고자 한다. It is now an era of active content that an individual directly and indirectly participates in production of content rather than passively receive the contents which have been produced in the past Churches also join the era of active content. They positively introduce the content production system, then produce, consume, and distribute contents. Among them, the number of churches that produce worship and worship services as content has been on the rise in recent years, which are creating content with great care in video and sound. This is because digital technologies have enabled it easy and affordable to create contents. Drum is a musical instrument that has a high level of sound pressure, and an even sound from a low-pitched area to a high-pitched area. For this reason, drum sounds tend to be captured through the microphones of other instruments when recording with other instruments. If recording works for several instruments are processing in one place, as each instrument has its own microphone, it is immensely difficult to capture the only sound you want owing to the interference of the sound. Therefore, it is highly important to separate drum sounds from other instruments in content production. This paper suggests four possible ways. It explains about exposed installation, acrylic drum shield, isolation drum booth, and fixed drum booth, compares the advantages and disadvantages to find out what realistic methods are. Except for exposed installation, although each method is a good way to distinguish drum sounds from other instrument sounds, the best way is to install a fixed drum booth. On the other hand, what is most realistic is that the isolation drum booth is not the perfect separation of drum sounds, still it can embody the effects like being in a small recording studio at a low cost. Through this study, we will refer to the effective contenting of drums on worship and praise services. Furthermore, an objective method will be provided once again by accumulating data through measurements.

발포 폴리우레탄과 탄소강과의 접착 강도 측정 및 수증기 흡착의 영향

김장순(Kim Jang Sun),조재동(Jo Jae Dong),임연수(Im Yeon Su) 한국고분자학회 2003 폴리머 Vol.27 No.4

아로마테라피가 스트레스 관련 호르몬에 미치는 영향

김장순 ( Jang Soon Kim ),이종렬 ( Jong Ryol Lee ),전용수 ( Yong Su Jun ),김보라 ( Bo Ra Kim ),박천만 ( Chun Man Park ) 한국미용학회 2009 한국미용학회지 Vol.15 No.4

The purpose of this study was to observe the effects of aroma treatment on some stress related hormones to obtain the basic data for prevention of stress-related disease. On November 18, 2006, 37 healthy soldiers for the subject of investigation were divided into 4 groups. The four groups included aroma inhalation, aroma massage, regular oil massage and the control group that did not have any treatment. The effect of each treatment on the blood levels of ACTH and cortisol and blood pressure, pulse rate was observed. The results of this study: 1. At 40 minutes after the test, all the test groups except the control showed a tendency to elevate in blood pressure, especially the aroma massage group was higher in systolic (p<0.05) or diastolic blood pressure (p<0.01). And in the massage group, the systolic pressure was higher than the control (p<0.05). 2. After 20 or 40 minutes, all the groups except the control showed significantly decreased blood levels of ACTH (p<0.01). Furthermore, the aroma inhalation group showed the highest decreasing levels of ACTH among all groups (p<0.001). 3. Cortisol was significantly reduced in the all test groups but the control group (p<0.01) 20 minutes after the test. Cortisol continuously decreased in the aroma inhalation group (p<0.01) and massage group (p<0.05) 40 minutes after the test. The highest decrease of cortisol in the blood was shown in the aroma inhalation group. These results suggested that aroma inhalation and physical treatment such as massage might reduce the initial stress. To improve health science and alternative medical treatment, aroma inhalation is considered to be the meaningful method of treatment.

연구논문 : 아마로 사용실태 및 향 선호도

김장순 ( Jang Soon Kim ),이종렬 ( Jong Ryol Lee ),박천만 ( Chun Man Park ) 한국미용학회 2006 한국미용학회지 Vol.12 No.3

The purpose of this study is to offer fundamental data for establishing a theory on aroma therapy by understanding Korean use and preference of aroma. The subjects of the study were 130 skin care specialists who worked for skin care salons and 410 general people in Daegu. The study was carried out through a questionnaire and inhalation test. The data were collected from September 1, 2003 to October 1, 2003. The result were as follows : 1. The rate of people who had experienced aroma less than 3 times was 40.5%. The rate of people who had not experienced aroma was 26.1%, who had experienced aroma massage was 33%, and who had inhaled aroma was 47.5%. The people who were older, wealthy, female, married, graduated from college were more experienced aroma(p<0.0l) and housewives in the thirties had more opportunities of experiencing aroma than other subjects. 2. General people preferred aroma Orange(66.3%) the most among 8 essential oils used in the test. The second preference was blended oil with Rosemary, Geranium and Lemon(26.1%). The third preference was the Lavender(25.8%). The order of preference in skin care specialists was Orange(83.3%), Lavender (48.8%), blended oil with Rosemary, Geranium and Lemon(42.9%), and blended oil with Lavender, Sandalwood, Ylangylang and Mandarin(26.2%). Both general people and skin care specialists disliked Teatree the most. 3. Lavender was more preferred by women than men (p<0.05) and Teatree was more preferred by men than women(p<0.0l). In particular, people in thirties liked Lavender the most(p<0.01). Teatree(p<0.001) and Sandalwood (p<0.05) were more preferred by married people than unmarried people. 4. The more educated people were, the more they liked the blended oil with Rosemary, Geranium, and Lemon(p<0.01). Housewives preferred Lavender(p<0.001) and Frankincense(p<0.05) and workers preferred Teatree(p<0. 001) and Sandalwood(p<0.05). As people were not healthy, they tended to prefer Teatree(p<0. 01) As people experienced essential oil, aroma massage and aroma inhalation more, they preferred Lavender and Frankincense. 5. Women`s average score was higher than men`s(women : 4.58, men: 4.18, total score: 6.0). Younger people more preferred aroma than older people(p<0.05). 6. 51.3% of specialists answered they used aroma for skin care less than one time a day, 35.7% of them used 2 or 3 times a day. 29.6% of specialists answered that the biggest difficulty in their work was the lack of knowledge of aroma. The next one was relationship with co-workers and pay(20.4%) and overwork was 13.9% 7. 37.3% of specialists had got massages 10~20 times from a skin care specialist and 31.7% of them had got massages less than 10 times. About experiencing aroma in everyday life, 42.9% of them experienced aroma 10~20 times and 28.6% of then experienced less then 10 times. 8. Generally, the more experienced people liked Lavender, Teatree, Sandalwood and Frankincense(p<0.05). 9. As a result of the survey on the specialists` preference, preferred oils were Lavender(22.4%), Rosemary (13.4%), Rose(10.1%), Jasmine(9.2%) and Orange(8.4%). Unpleasant oils were Teatree(16.0%), Yiangyiang(13.6%), Peppermint(9.9%) and Patchouli(8.6%). The specialists used Lavender the most (67.6%) in aroma therapy and used Rosemary(6.5%), Teatree(5.6%) and Peppermint(4.6%). In conclusion, the subjects` experience and knowledge of aroma were not high, and there was difference in preferences of aroma by their ages, gender, education, occupations, and experiences. However, both general people and the specialists had a difficulty in aroma use due to the lack of knowledge of aroma. So, if we apply aroma therapy to patients in consideration of their preferences, the best result will be expected. A systemic aroma education program for specialists is needed as soon as possible.

복합화력내의 HRSG 에 사용되는 탄소강 Fin - tube 의 부식특성

김현태,김장순,김정선,백지흠,조원일,조병원,손태원,주재백,김건영,윤경석 ( H . T . Kim,J . S . Kim,J . S . Kim,C . H . Paik,W . I . Cho,B . W . Cho,T . W . Sohn,J . B . Ju,K . Y . Kim,K . S . Yun ) 한국화학공학회 1996 화학공학의이론과응용 Vol.2 No.1

용존산소와 수소이온 농도에 따른 탄소강재질 보일러튜브의 부식속도 및 부동태피막 특성에 관한 연구

김현태,김용혁,백지흠,조원일,조병원,주재백,윤경석,김장순,강명수,하정수,김건영 ( H . T . Kim,Y . H . Kim,C . H . Paik,W . I . Cho,B . W . Cho,J . B . Ju,K . S. Yun,J . S . Kim,M . S . Kang,J . S . Ha,K . Y . Kim ) 한국부식방식학회 1996 Corrosion Science and Technology Vol.25 No.1

발전소 복수기의 Fouling Factor 및 피막특성에 관한 연구

이승진,김장순,이성호,Lee, Seung-Jin,Kim, Jang-Sun,Lee, Seong-Ho 한국재료학회 1997 한국재료학회지 Vol.7 No.9

발전소 복수기의 열전달 표면에 형성되는 불순물의 fouling factor와 튜브내면에 부착되는 피막의 두께변화를 측정하여 복수기 관리에 관한 지침을 제시하고자 모델복수기를 이용하여 60일간 현장실험을 실시하였다. 복수기의 fouling factor는 시험 후 약 40일 이후부터 큰 폭으로 증가하였다. 발전용 복수기의 관청결도가 85-90%로 설계되므로 설계치를 유지하기 위해서는 약 40일 마다 복수기튜브를 세정하여 관청결도를 향상시켜야 할 것으로 판단되었다. 또한 동합금 재질을 사용하는 복수기튜브는 설치 후 보호피막이 형성되는 초기 30일 동안의 방식운전이 복수기튜브 건전성 확보에 중요한 인자임을 유추할 수 있었다.