• 한국식품과학회지
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• 제22권6호
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• pp.681-685
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• 1990

반응온도 $210^{\circ}C$, 수소압력 $0.3\;kg/cm^2$, 니켈촉매량 0.12%, 교반속도 280 rpm의 선택적 수소첨가조건에서 반응이 진행됨에 따른 면실유의 지방산 조성, 트란스산 및 이화학적인 특성의 변화를 연구하였다. 지방산 조성에 있어서는 팔미트산(16 : 0), 스테아르산(18 : 0)같은 포화지방산은 거의 변함이 없었고, 리놀레산(18 : 2), ($50.03%{\rightarrow}9.38%$)이 올레산(18 : 1) ($20.65%{\rightarrow}60.35%$)으로 전환되었으며, 특히 리놀레산 이성체 변화에서는 ct, tc, tt형의 변화보다는 cc형의 변화가 현저하였고, 올레산 이성체 변화에서는 t형 생성량은 현저하게 증가한데 비해 c형의 변화는 거의 없었다. 반면, 수소첨가됨에 따라 녹는점 및 고체지함량은 직선적으로 증가하였고 요드값은 직선적으로 감소하였다. 이들의 결과로부터 다음과 같은 직선회귀식을 구하였다. 녹는점과 요드값 : Y=1.59-2.36X(r=0.96, p<0.05), 고체지함량($at\;20^{\circ}C$)과 녹는점 : Y=2.81+2.01X(r=0.96, p<0.05), 고체지함량($at\;20^{\circ}C$)과 요드값 : Y=9.40-5.16X(r=-0.99, p<0.01), 고체지함량($at\;20^{\circ}C$)과 18 : 1 t : Y=6.25+8.48X(r=0.97, p<0.05).

• Journal of Advanced Marine Engineering and Technology
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• 제25권2호
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• pp.311-320
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• 2001

Since 1998 for protection of marine pollution, all ships must have oil filtering equipment and 15ppm bilge alarms which satisfy Requirements of MARPOL 73/78. Oily-water separator used in machinery area of ships usually consists of two parts; one is filtering equipment and the other is oil content meter(OCM). This study presents optical characteristics of bilge were acquired form oil content sensing module. The oil content sensing module consists of IR-LED light source, photo-diode light receivers, and a glass tube for bilge water sample. The experiment with the bilge water demonstrates various valuable optical properties. These optical properties suggest notes and guides to make the low-cost, easy operation and good performance commercial type OCM that satisfy the requirements of MARPOL 73/78.

• 전기학회논문지
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• 제61권4호
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• pp.580-584
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• 2012

The insulating oils perform a cooling and insulation action in electric power transformer. The mineral oil has immanent fire dangerousness and environmental contamination problem. Vegetable insulating oil has higher ignition point, flash point and more excellent biodegradability than conventional mineral oil. In a real oil-filled transformers, some of the power is dissipated in the form of heat. And transformer require the heat to be removed from the winding and insulator by forced convection of the insulating oil. The flow electrification occurs when insulating oil was forced to be circulated. In this paper, influence of temperature, velocity of flow, and insulating pipe and diameter on streaming electrification of vegetable insulating oil was investigated using forced circulation apparatus. Temperature effects were most significant, and it showed a peak in the temperature $30^{\circ}C$ to $35^{\circ}C$ at insulating and copper pipe. The change of flow electrification according to area variety could be checked by change of diameter.

• 한국해양공학회지
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• 제15권2호
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• pp.1-5
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• 2001

A study on the new active type oil-water separation system including the oil-water separation system of magnetic film was carried out. Separation system is composed of several active types of circulating oil separation steps and one magnetic film separation step at final stage. At the magnetic separation step, ferrofluid easily forms a weak magnetic mixture with oil, which is from the water by magnetic field gradient. The vessel has been designed to run at the maximum speed of 25 knots. And two typical forms of SWATH and Catamaran have been studied as a new type of oil recovery vessel.

• 자원리싸이클링
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• 제4권1호
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• pp.20-24
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• 1995

어룡무연탄의 수력채탄시 산출될 수 있는 -200mesh의 분탄과 물위 슬러리를 COM(Coal Oil Mixture)화에 의하여 탈수시킴에 있어서 고분자응집제를 병행한 효과를 상징액의 빛 투과율로 조사하였다. 경유와 음이온 고분자응집제(A110)를 같이 사용하면 경유로만 응집시킬 때보다 낮은 교반속도에서도 COM이 형성되며 대단히 높은 상징액의 청정도를 보인다. 이때의 고분자응집제의 소요농도는 100g/t이고 경유의 소요량은 석탄량의 10%정도이다.

• International Journal of Advanced Culture Technology
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• 제11권1호
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• pp.198-203
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• 2023

Art grows with the development of human civilization. Many art forms exist to connect the past and the future. Oil painting, a form of western painting, has flourished in China since its entry into China. In the continuous exploration of artistic language, Chinese artists have formed art forms with Chinese characteristics, permeated Chinese painting ideas and techniques, and formed specialized painting language. Through the oil painting works, the Chinese oriental aesthetic, national spirit, local customs and other times of humanistic features. As one of the many practitioners of oil painting in China, the author starts from the ego and continuously explores and studies in the practice of art. This paper mainly discusses the embodiment of Chinese oil painting modernity in the oriental art context and analyzes the spiritual temperament and painting materials, so as to expand the creative thinking of Chinese oil painting modernity in the oriental art context.

• International Journal of Advanced Culture Technology
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• 제11권2호
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• pp.162-169
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• 2023

With the diversified development of modern art, the application of mixed media in painting has become increasingly prominent, which not only provides artistic creators with new creative ideas, but also magnifies the creators' emotions and re endows the media with meaning and value. This paper systematically introduces the definition, features and connotation of mixed media painting, and expounds three aspects of the aesthetic function of multimedia in oil painting creation, the embodiment of painting individuality, and the combination and application of materials and technique to demonstrate that mixed media presents different understanding and expression in Chinese oil painting, no longer constrained by traditional oil painting materials, which promotes more development possibilities of the art expression form of Chinese oil painting, enhances its international influence, and bring new vitality to the creation and development of Chinese oil painting.

• Journal of Nutrition and Health
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• 제30권9호
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• pp.1073-1083
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• 1997

This project was to compare the effects of consuming diets incorporating soybean oil , canola oil, ad palm oil on blood serum lipid patterns and fecal fat excretion in healthy human adults. The project was composed of three studies that were run concurrently . Each study was composed of a 4-day pre-trial period and two , 14-day experimental periods arranged according to a cross-over design. During the pre trial period, subjects were allowed to eat self-selected diets. During the experimental period , subjects were asked to eat constant, laboratory controlled diets in which sources of dietary fat varied . Thirty healthy , young adult subjects were fed a laboratory controlled diet incorporating soybean oil, canola oil, and palm oil. Test oils provided approximately 20% of the total dietary calories form all sources. Total dietary fat from all sources was approximately 30% of consumed calories. The highest serum total cholesterol , LDL cholesterol, VLDL cholesterol , and triglyceride values occurred when pam oil diets were eaten. However, feeding on palm oil diets resulted in the same HDL cholesterol content as with soybean oil or canola oil diets. Soybean oil diets produced numerically lower blood serum total cholesterol , LDL cholesterol, and triglycerides, and numerically higher HDL cholesterol and VLDL cholesterol than did those with canola oil. Fecal fat excretion was numerically lower with soybean oil diets than with canola diets. The highest fecal fat excretion occurred when palm oil diets were eaten.

• 무역상무연구
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• 제39권
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• pp.251-280
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• 2008

A party to the charter will not be able to rely upon the doctrine of frustration if an event which makes further performance impossible has been caused by his breach of the charter. Strictly speaking, this is not a situation of frustration at all but rather a case of discharge of the contract by breach. In the Sea Angel case, the defendant entered into a Lloyd's Standard Form of Salvage Agreement with owners of the casualty on the LOF 2000 form, incorporating the SCOPIC clause. The time charter was on the terms of the Shelltime 4 form. This case the trial of the action brought by the claimants owners of the vessel Sea Angel claiming outstanding hire from the defendant charterers. This Case was issued whether charterparty frustrated by refusal of port authorities to issue "No Demand Certificate" allowing port clearance pending payment of oil spillage clean-up costs. The court concluded that no attempt had yet been made to invoke the assistance of the Pakistani court to obtain the release of the vessel. There was not so radical or fundamental a change in the obligation assumed by defendant as to establish frustration. The purpose of this study aims to analyse frustration and time charter in the Sea Angel case.

• Tribology and Lubricants
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• 제26권1호
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• pp.52-55
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• 2010

This study investigates the friction of the roll stands in the high performance multi- holes slate fin machine which pin is using in heat transfer of radiator, oil cooler, inter cooler, condenser and evaporator. The roll stand part is very important to maintain the high performance fin machine. This multi-holes form roll type is the first time in our country so it will be helpful to increases the export and product of heat transfer. It was include the technical of form rolling system which was self development. Then it will be improve the electric home appliances, future motor vehicle device and industrial machine.