• 한국식품영양과학회지
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• 제23권3호
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• pp.520-529
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• 1994

High-ratio cakes made from the formulas with more sugar (140% based on flour weight) than flour have come to be preferred recently. To produced good light cake structure, cake batter must retain the many finely divided gas bubbles formed during mixing . Thermal setting of cake structure is mainly caused by starch gelatinization . The formula controls the temperature at which the cake batter changes from a fluid to a solid. Especially, the relatively large amount of sugar used in the formula delays gelatinization, so that air bubbles can be properly expanded by carbon dioxide gas and water vapor before the cake sets. To get a non collapsing high ratio cake structure after baking , the proper degree of gelatinization of the starch granule, the control of gelatinization temperature, and sufficient gel strength ar all important. The role of ingredients (flour , sugar, proteins, chemical leavening agents, water shortening , and emulsifiers) is reviewed with relation to the formation of satisfactory cake structure.

• International Journal of Concrete Structures and Materials
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• 제18권2E호
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• pp.89-95
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• 2006

This paper proposes a modified method of Latin Hypercube sampling to reduce the variance of statistical parameters in uncertainty analysis of concrete structures. The proposed method is a modification of Latin Hypercube sampling method. This analysis method uses specifically modified tables of random permutations of ranked numbers. In addition, the Spearman coefficient is used to make modified tables. Numerical analysis is carried out to predict the uncertainty of axial shortening in prestressed concrete bridge. Statistical parameters obtained from modified Latin Hypercube sampling method and conventional Latin Hypercube sampling method are compared and evaluated by a numeric analysis. The results show that the proposed method results in a decrease in the variance of statistical parameters. This indicates the method is efficient and effective in the uncertainty analysis of complex structural system such as prestressed concrete bridges.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2012년도 추계 학술논문 발표대회
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• pp.19-21
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• 2012

This paper was to investigate the effect of incinerator ash on engineering properties of the high volume blast furnace slag concrete through Mock-up test. Test results revealed that the use of recycled aggregates resulted in increase of slump compared with the OPC concrete. But, the use of recycled aggregates did not affect the results of air contents and chloride contents. The use of recycled aggregates showed shortening of setting time of high volume blast furnace slag concrete. When the recycled aggregate was used, delay in strength development at early age happened with high volume blast furnace slag concrete compared with that of OPC concrete.

• 대한후두음성언어의학회지
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• 제5권1호
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• pp.69-74
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• 1994

Thyroplasty type III provides an effective mean of shortening the vocal fold. It is used primarily fer lowering vocal pitch. The indications for this surgery are the male patients with too high a vocal pitch of long duration which has proven resistant to voice therapy and a type of dysphonia characterized by high pitch and a breathy voice, in which the laryngeal findings include a very narrow glottal chink and a small amplitude of vibration, suggesting a stiff vocal cord. In this study, we have experienced two cases of high pitched voice, one is mutational falsetto and other is high pitched, breathy voice with stiff vocal fold. The results were satisfactorily successful with type III thyroplasty. So we report the cases of type III thyroplasty in patients of dysphonia with high pitched voice.

• 동력기계공학회지
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• 제13권4호
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• pp.38-42
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• 2009

The Injection molding is used more than 70% of total production in plastic products. The injection molding process has 4 processes such as filling, packing, cooling and ejecting. now then, cooling process spends the most of times in Injection molding cycle time. Therefore, it is important to control the mold temperature in producing plastic products. The cooling system and time affect the product's quality and productivity. Especially, cooling time has about 60% of total injection cycle time. Therefore, we can improve a productivity by shortening cooling time. In this study, the rapid cooling system was developed and performed a efficiency test. This system could refrigerate coolant to $1^{\circ}C$ and had to need 10 minutes for normal operating.

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 1997년도 춘계학술발표회논문집(1)
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• pp.304-309
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• 1997

A method to mitigate the thermal stratification flow of a horizontal pipe line is proposed by heating external bottom of the pipe with electrical heat tracing. Unsteady two dimensional model has been used to numerically investigate an effect of the external Denting to the thermally stratified flow. The dimensionless governing equations are solved by using the control volume formulation and SIMPLE algorithm. Temperature distribution, streamline profile and Nusselt numbers of fluids and pipe walls with time are analyzed in case of externally heating condition. no numerical result of this study shows that the maximum dimensionless temperature difference between the hot and the cold sections of pipe inner wall is 0.424 at dimensionless time 1,500 ann the thermal stratification phenomena is disappeared at about dimensionless time 9,000. This result means that external heat tracing can mitigate the thermal stratification phenomena by lessening $\Delta$ $T_{ma}$ about 0.1 and shortening the dimensionless time about 132 in comparison with no external heat tracing.rnal heat tracing.

• Journal of Chest Surgery
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• 제18권1호
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• pp.62-68
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• 1985

10 patients with mitral regurgitation associated with various congenital cardiac anomalies were treated by reconstructive techniques in the Department of Thoracic and Cardiovascular Surgery, Hanyang University Hospital during the period of 2 years from 1982 to 1984. There were mitral valvular cleft in one case, chordae tendineae rupture associated with congenital multiple cardiac-anomalies [VSD, PDA, prolapse of aortic non-coronary cusp through VSD] in one case, elongated chordae tendineae after removal of left atrial myxoma in one case, and mitral annular dilatation associated with VSD in 3 cases, large PDA in 2 cases, aortic regurgitation [bicuspid valve] in one case, and unknown origin in one case. Owing to the various pathology above mentioned, reconstructive surgical approach to mitral incompetence is accordingly complicated and a combination of the following different procedures were properly used case by case, that is, suture of chordae tendineae, shortening of elongated chordae tendineae, closure of VSD, ligation of PDA, aortic valvuloplasty, mitral annuloplasty with mattress suture, etc. All patients were survived and they have been excellent postoperative results.

• 미생물학회지
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• 제28권2호
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• pp.158-161
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• 1990

진균에 의한 합성 고분자재료 분해도의 측정을 보다 효율적으로 수행하기 의한 soft agar overlay법을 고안하였다. 이 방법은 고분자재료에서의 균 생장도를 쉽게 파악 할 수 있도록 하고, 생분해도 측정기관을 크게 단축시킬 수 있을 뿐만 아니라, 난분해성 고분자 재료에서의 분해도 차이를 정확하게 나타내 줌으로써 기존의 측정방법에 비하여 그 효율성이 높았다.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2004년도 춘계 학술발표회 제16권1호
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• pp.636-639
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• 2004

Reinforced concrete structures have been used for a long time. However, corrosion problem in reinforcing steel is inevitable, which results in the degradation of performance and the shortening of the life of structures. To overcome such problems, FRP(Fiber Reinforced Polymer) rebars have been developed. Due to their corrosion resistance and their superior mechanical properties, FRP rebars are increasingly applied to concrete structures in other countries. To obtain the composite action between FRP rebars and concrete, sufficient bond between two materials must be secured. But, the behavior of FRP rebars is different from that of steel rebars. Therefore, it is necessary to understand and develop the proper bond mechanism of FRP rebars to use them in concrete structures. This paper presents analytical results to investigate the bond-slip relationship between FRP rebars and concrete based on pull out tests.

• 한국전기전자재료학회논문지
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• 제27권6호
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• pp.383-388
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• 2014

The relay used is gradually increased. Because it is possible to easily control the high voltage and current. Bounce phenomenon is generated in contact during operation relay. As the result, arc is generated at the contact, thereby shortening the contact lifetime. In this study, we analyzed the bouncing phenomenon due to deterioration. It can be seen from the experimental results, and it is minimized at about 100,000 times. Bouncing phenomenon to increase again after the minimization. Consequently, the bouncing related to contact weight and shape of contact surface.