• Proceedings of the Korea Air Pollution Research Association Conference
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• 2002.11a
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• pp.306-307
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• 2002

악취 물질 제거를 위해 여러 가지 종류의 탈취제품이 시중에 유통되고 있다. 그러나 이런 탈취제품들이 어느 점도의 탈취 성능을 보유하고 있는지를 평가할 수 있는 체계적인 방법이 없어 막연하게 사용하고 있는 실정이다. 그리하여 탈취제품의 객관적인 탈취 성능 평가를 위한 시험 분석 방법을 개발하기 위해 최적의 분석 방법 및 측정 조건을 확립하고자 하였다. (중략)

• Journal of the Korean Society of Food Culture
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• v.21 no.2
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• pp.166-170
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• 2006

Soybean oil (SBO) was carried out deodorization at 4 factors as controlled maximum deodorizing temperature (DT), vacuum degree (VD), cycle time (CT) and treating amount of stripping steam (TASS). The results were as follows, acid value (AV), peroxide value (PV) and trans fatty acid content (TFAC) in produced deodorized SBO. Obtained deodorized SBO at high DT had the lower AV, PV, but TFAC was increased relatively. A suitable level of VD and TASS was 4.0 torr and 2.0%(w/w), than the longer CT was appeared a superior quality level. As a result, the best deodorizing conditions in SBO for lower TFAC were maximum DT; $235^{\circ}C$, VD;4.0torr, CT; $14{\sim}15min$ and TASS; 2.0% (w/w). Deodorizing conditions for lower TFAC in deodorizing of SBO was the major factor, more than lower DT was difficult because of the others quality factors.

• Journal of Animal Environmental Science
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• v.8 no.1
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• pp.1-8
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• 2002

Real sized open type biofilter system was manufactured to control the odor generated from the agitated composting system which composted swine manure and sawdust mixtures. The aim of this research was to develop a biofilter system using matured compost and to evaluate the performance of the biofilter system. Average ammonia reduction rate through the biofilter was 84% during about two month period of composting. The maximum ammonia concentration after filtering was 45ppm lower than allowable value of 50ppm. It was concluded that compost can be used as a biofilter materials.

• Korean Journal of Food Science and Technology
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• v.30 no.3
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• pp.494-497
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• 1998

Deodorization of soybean oil was carried out at a temperature range of $220{\sim}280^{\circ}C$ for 1 or 2hrs. HPSEC(high performance size exclusion chromatography) method was used for the analysis of dimeric acids in deodorized soybean oil. Dimeric acid moieties were produced through the deodorization at $240{\sim}280^{\circ}C$ for 2 hrs. The amount of dimeric acids produced was found to be in the range of 0.36 to 3.39%. Dimeric acids were not detected under the deodorizing condition of $240^{\circ}C,\;2\;hrs\;or\;250^{\circ}C,\;1\;hr$. The soybean oil deodorized in these conditions had good quality by the color and viscosity tests. The best condition of minimizing the formation of dimeric acids in soybean oils was the deodorizing conditions of $240^{\circ}C,\;2\;hrs\;or\;250^{\circ}C,\;1hr$.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2003.11a
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• pp.384-385
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• 2003

일상 생활에서 악취로 인한 피해를 줄여 쾌적한 생활환경 유지에 대한 관심이 높아짐에 따라 이에 관련된 탈취제품이 많이 상품화되고 있다. 본 연구에서는 탈취 성능에 대하여 객관적으로 평가할 수 있는 시험 분석법을 개발하고, 탈취 성능 평가방법의 정확도를 확립하기 위해 단계별 불확도 평가를 수행하였다. 측정 불확도 요인을 체계적으로 평가하여 주요 불확도 요인을 파악하고 이를 최소화하기 위하여 어떠한 점을 주의하여야 하는 지를 조사하였다. (중략)

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2002.11a
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• pp.346-347
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• 2002

악취는 인간의 생활환경에 불쾌감과 혐오감을 주는 감각공해로서 악취를 줄여 쾌적한 환경을 유지하고자하는 연구가 증가함에 따라 이에 관련된 탈취제품이 많이 상품화되고 있다. 그러나 탈취성능에 대한 체계적인 평가가 이루어지지 않아 탈취제품의 성능을 개관적으로 평가할 수 있는 시험분석법의 개발이 필요하다. 본 연구에서는 여러 악취물질 중 포름알데히드를 대상으로 탈취제품의 성능을 평가하기 위한 시험분석법을 개발하기 위하여 최적 측정조건을 확립하고자 하였다. (중략)

• The Korean Journal of Food And Nutrition
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• v.11 no.1
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• pp.26-30
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• 1998

It was determined the effect of deodorizing temperature on forming amount and its composition of trans fatty acids by GLC in corn oil. Trans fatty acids were detected a trace amount at the low temperature deodorizing as 240~25$0^{\circ}C$, but it s amounts were showed to 0.30, 0.57, 0.64 and 0.81% at the high temperature deodorizing as 255~27$0^{\circ}C$, respectively. The isomerization phenomenon was remarkably in order that double bond number might to increase, tt, and ttt type were not detected nearly, that the ct, tc, cct and tcc type were detected to the large amount, respectively.

• Proceedings of the Korea Information Processing Society Conference
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• 2021.05a
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• pp.219-222
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• 2021

인공지능 기술은 모든 분야에서 혁신을 이뤄내고 있다. 이와 동시에 인공지능 모델에 대한 여러 보안적인 문제점이 야기되고 있다. 그 중 대표적인 문제는 많은 인적/물적 자원을 통해 개발한 모델을 악의적인 사용자가 탈취하는 것이다. 모델 탈취가 발생할 경우, 경제적인 문제뿐만 아니라 모델 자체의 취약성을 드러낼 수 있다. 현재 많은 연구가 쿼리를 통해 얻는 모델의 입력과 출력을 분석하여 모델의 의사경계면 또는 모델의 기능성을 탈취하고 있다. 하지만 쿼리 기반의 탈취 공격은 획득할 수 있는 정보가 제한적이기 때문에 완벽한 탈취가 어렵다. 이에 따라 딥러닝 모델 연산 과정에서 데이터 스니핑 또는 캐시 부채널 공격을 통해 추가적인 정보 또는 완전한 모델을 탈취하려는 연구가 진행되고 있다. 본 논문에서는 최근 연구 동향과 쿼리 기반 공격과의 차이점을 분석하고 연구한다.

• Proceedings of the KAIS Fall Conference
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• 2002.05a
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• pp.124-126
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• 2002

폴리우레탄의 특징을 이용하여 폴리우레탄에 흡습능력 과 탈취능력을 향상시키고 향의 서방성 능력을 첨가하여 장루 환자들이 사용하기에 적합한 패드의 특징을 테스트 후 분석하였다. 수분의 흡습능력, 변의 냄새제거 정도의 탈취 능력 , 향의 지속성을 측정하였다. 폴리우레탄만의 특징으로도 흡습능력과 탈취능력이 있지만 주흡습제 보조흡수제를 첨가하고, 소취 제와 보조제를 첨가하여 더욱 개선된 흡습능력과 탈취능력을 확인하였다.

• Journal of the Korean Society of Food Culture
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• v.12 no.2
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• pp.189-193
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• 1997

A study was conducted to investigate the effects of deodorizing temperature on physicochemical characteristics, fatty acid and triglyceride (TG) composition, and to estabilish the optimal deodorizing conditions in corn oil. Acid value (AV) of $240^{\circ}C$ treating group was showed 0.065 as the lowest level, the AV range was $0.08{\sim}0.09$ at $250{\sim}270^{\circ}C$. Lovibond total color was 24 as the lowest level, peroxide values (POV) were zero at $240{\sim}270^{\circ}C$ range. But POV was showed 0.42 meg/kg oil at $235^{\circ}C$, according to the optimal deodorizing temperature for the complete removal of peroxides was required more than $240^{\circ}C$. On the other hand, inclose of deodorizing temperature was conducted to the increase of saturated fatty acid content as myristic, palmitic, stearic and arachidic acid etc. Change of TG composition at treated group more than $250^{\circ}C$ was reliable, $S_3$ type TG was appeared. As a result, high temperature deodorizing was induced the undesirable influence at the physicochemical properties in deodorized corn oil.