• 한국식품영양과학회지
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• 제31권6호
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• pp.999-1004
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• 2002

식염농도를 3, 5, 7 및 9%로 각각 조제한 2$^{\circ}C$의 염지액에 등심고기를 20일간 염지하면서 식염농도와 염지기간이 근원 섬유단백질의 추출성과 소편화도, 보수력, 식염함량 및 기호성에 미치는 영향을 검토하였다. 식염농도 3, 5 및 7%의 염지액에 염지한 등심고기 근원섬유단백질의 추출성과 보수력은 염지 20일까지, 근원섬유 소편화도는 염지 16일까지, 모두 식염농도가 높을수록 점점 높게 나타났으며, 9%의 염지액에 염지한 것은 일정한 경향을 보이지 않았다. 가열육의 색도는 염지액의 식염농도가 높을수록, 그리고 염지 16일까지 점점 양호하게 나타났다 염지액의 식염농도 3%에서는 염지육의 발색이 균일하게 되지 않았으며, 9%에서는 발색이 잘 되었으나 풍미와 종합적인 기호성이 좋지 않았다. 등심고기는 염지액의 식염농도5%에서 16일, 또는 7%에서 12일 염지하면 기호성이 우수하게 되었다.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2003년도 봄 학술발표회 논문집
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• pp.689-696
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• 2003

In this study, ordinary portland cement, slag cement and micro cement which have been used in the construction fields were evaluated for the environmental effects and compression strength characteristics for curing solution. To find the leaching of C $r^{6+}$ characteristics in cement grouts, C $r^{6+}$ content tests were performed for the raw materials(cement powder). In addition, C $r^{6+}$ leaching tests were peformed for the homo-gel samples according to change of pH and each curing solution with the deionized water and leachate. Then, the unconfined compression strength tests were peformed with the homo-gel samples and the amount of changed C $r^{6+}$ was measured by curing solution.

• 한국전기전자재료학회논문지
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• 제25권10호
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• pp.844-848
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• 2012

Encapsulant curing in terms of convection oven leads to thermal induced stress due to nonuniform thermal conductivity in LED package. We have adopted infrared (IR) light for silicone curing in order to release the stress. The light uniformity irradiated on an encapsulant surface is confirmed to be uniform by optical simulation. Shear strength of die paste using IR compared to convection oven is increased 19.2% at the same curing time, which indicates curing time can be shortened. The indentation depth difference between center and edge of silicone encapsulant in terms of convection oven and IR are 14.8% and 3.4%, respectively. Curing by IR also shows 2.3% better radiant flux persistency rate of LED at $85^{\circ}C$ after 1,000 h reliability test compared to convection curing.

• 한국세라믹학회지
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• 제48권6호
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• pp.610-616
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• 2011

The effect of curing temperature on basic geopolymeric reactivity and hardening behaviour of blast furnace slag were investigated using the mixture of pulverized slag and several alkaline solutions of relatively high concentration. For the pastes prepared at several different temperatures between 20$^{\circ}C$ and 90$^{\circ}C$, setting time and heat of reaction were examined while mineralogical and morphological examinations were performed for the hardened paste after curing period at same temperature. The geopolymeric reaction of slag was revealed to be accelerated strongly according to the curing temperature regardless of the sort and concentration of the alkaline solution. The increase of concentration of the alkaline solution within 9M and the existence of silicic ion in the solution also promoted the reaction severely. The mineral component and their ratio of the hardened paste were revealed to be influenced by the chemical species and silicic ion contained in alkaline solution rather than by the curing temperature. The higher temperature and longer period of curing stage were effective for the sustained formation of geopolymer and succeed improvement of density and uniformity of morphology of the final hardened body.

• Journal of Nutrition and Health
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• 제47권6호
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• pp.484-488
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• 2014

Purpose: This study investigated the question of whether the addition of natural ingredients (pear fermented solution, celery powder, vitamin C) in curing agents may influence antioxidant activities and nutritional characteristics of smoked duck. Methods: Smoked duck samples with general or natural curing agent containing three additive ingredients were examined to determine total polyphenol contents, antioxidant activities, pH, TBARS, and food additives residue (nitrite ion, antioxidant, sodium glutamate). Results: Smoked duck with natural curing agent showed a higher level of total polyphenol content and antioxidant activities than smoked duck using general curing agent (p < 0.05). The pH and TBARS of smoked duck were significantly decreased by the addition of natural curing ingredients compared to those of smoked duck using general curing agent (p < 0.05). The residues of food additives were not detected in smoked duck using natural curing agent. Conclusion: Findings suggest that the addition of pear fermented solution, celery powder, and vitamin C in natural duck curing agent may improve the antioxidant activities and nutritional characteristics of smoked duck and provides health benefits.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 1998년도 가을 학술발표회 논문집(I)
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• pp.185-190
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• 1998

Corrosion of steel reinforcement is the most significant factor of deterioration in reinforced concrete structures. Chloride ion is considered one of the most common culprits on the corrosion of steels in concrete. The main objective of this study is understanding behavior of chloride ion in hardened cement pastes at different stages of curing. Cement pastes with water-cement ratio of 0.5 are allowed to hydrate in sealed containers for 28, 70, 180 days. And than pore solution is expressed. It was found that the $Cl^-$ concentrations in pore solution is decreased with increasing curing time in all Nacl addition level, the $OH^-$ concentrations is increased to 70 days but decrease at 180 days in all Nacl addition level. The $Cl^-$/$OH^-$ in pore solution is increased with increasing curing time in all Nacl addition level, however $Cl^-$/$OH^-$ of maximum Nacl addition level(Nacl 0.54% by weight of cement) is under the onset of depassivation level 0.3.

• 한국축산식품학회지
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• 제23권1호
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• pp.32-38
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• 2003

식염농도 7%의 염지액을 이용하여 돼지고기 등심을 염지할 때에 염지온도와 기간이 염지육의 이화학적 특성과 기호성에 미치는 영향을 검토하였다. 열지온도 1$0^{\circ}C$에서 15일째에 염지육의 pH와 보수력이 현저히 저하되었다. 염지온도 1$0^{\circ}C$에서 염지액과 염지육 표면부위의 일반세균수는 12째에 현저히 많아졌으나 중심부위는 거의 검출되지 않았다. 임시 온도가 높을수록 염지기간에 관계없이 식염 침투가 빠르고 염지육 식염함량이 많아졌으며, 표면부위에 대한 중심분위의 식염함량 비율은 염지기간이 길수록 크게 나타났다. 염지육의 식염함량은 가열에 의하여 적어졌다. 염지 가열육의 짠맛과 풍미는 염지 초기에는 높은 온도에서, 후기에는 낮은 온도에서 우수하였다. 열지 가열육은 1$^{\circ}C$에서 12일, 5$^{\circ}C$에서 9일 염지하여 제조하면 기호성이 우수하였다.

• 한국전기전자재료학회논문지
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• 제17권1호
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• pp.59-64
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• 2004

We have fabricated the polymer dispersed liquid crystal (PDLC) cell where a control of phase separation is very important. The factors to influence the phase separation are mixing ratio of LC and polymer, curing temperature and UV intensity. In this paper, we inspected the change of a phase separation as a function of curing temperature for the mixture of E7 and. NOA65 with different ratios. When the LC concentration is less than polymer such as LC:NOA65 = 40:60wt％, the PDLC cell is influenced strongly by the curing temperature. However, when the LC concentration is much less than polymer such as LC:NOA65 = 80:20wt％, it is influenced slightly by the curing temperature. The reason is because the mixture shows upper critical solution temperature behavior and therefore it is important to know the behavior of phase separation as a function of curing temperature of the mixture.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2009년도 추계 학술논문 발표대회
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• pp.107-110
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• 2009

After inquiring into physical characteristics of using fly ash and alkali solution, it was found that higher pH density is favorable to strength development at early age and the higher the age is, the higher the compressive strength gets. Also, it was found that when there is more addition of activator, the compressive strength is higher. I was shown that more than atmospheric curing, steam curing was favorable for development of compressive strength. When the temperature of curing temperature was higher, most of the compressive strengths were higher. Thus, based on this study, it was understood that environmental-friendly chemically combined concrete using fly ash and alkali solution can be utilized without using cement.

• 멤브레인
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• 제14권3호
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• pp.207-217
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• 2004

본 연구에서는 복합막의 제조공법으로 가장 광범위하게 쓰이는 계면중합법을 이용하여 나노복합막을 제조하였다. Monomer의 농도 및 조성, curing 조건, 후처리 조건과 같은 복합막 제조조건과, 운전압력, 공급액의 농도와 같은 운전인자에 의한 막성능 변화를 조사하였고, 계면중합 과정중에 첨가제를 사용하여 막의 유효면적을 확대하여 투과유속을 증가시키고자 하였다. Monomer의 농도가 증가함에 따라 배제능은 일정하였지만 투과유속이 감소하였고, curing 온도가 증가함에 따라서는 오히려 안정적인 박막층의 형성이 저해되어서 배제능과 투과유속이 모두 감소하였고, curing 시간에 따른 막성능의 변화는 나타나지 않았다. Test solution의 농도가 올라감에 따라서 투과유속과 배제능 모두 감소하였으며, 운전압력이 증가함에 따라서는 배제능과 투과유속 모두 향상하는 경향을 보였다. 계면중합과정중에 사용하는 아민단량체(amine monomer) 중 방향족 다이아민(aromatic amine)인 MPD의 함량을 높임에 따라서 배제능은 증가하였지만 투과유속은 현저하게 떨어졌다. 첨가제의 농도에 따른 표면 거칠기 증가 경향은 MPD가 포함된 amine 조성일 때가 더 높았지만 투과유속은 piperazine만 단독으로 사용하였을 때보다 떨어졌다.