• 제목/요약/키워드: Internal curing

검색결과 138건 처리시간 0.03초

Physicochemical Characteristics of Beef Jerky Cured with Salted-fermented Anchovy and Shrimp

  • Kim, Gap-Don;Go, Gwang-Woong;Lim, Hyun-Jung;Jung, Eun-Young;Seo, Hyun-Woo;Jeong, Jin-Yeon;Joo, Seon-Tea;Yang, Han-Sul
    • 한국축산식품학회지
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    • 제34권1호
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    • pp.99-105
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    • 2014
  • The aim of this study is to evaluate the availability of salted and fermented fish (SFF) including salted and fermented anchovy (SFA) and shrimp (SFS) as a marinade of beef jerky. In curing solutions, half (SFA 1 and SFS 1) or whole (SFA 2 and SFS 2) salt-water was replaced with SFF juices. Higher water activity ($a_w$) was found in the beef jerky cured with SFFs than the control (C) (p<0.05). The SFFs had the effect of causing a decrease in hardness and an increase in cohesiveness (p<0.05). Among the treatment samples, springiness was the highest in SFA2 and SFS2 (p<0.05) and the lowest values of Warner-Bratzler shear force were found in SFA1 and SFA2 (p<0.05). The SFFs also had the effect of increasing the flavor of the sensory properties; however, color measurements from both the instrumental surface color ($L^*$, $a^*$, $b^*$, chroma, and hue angle) and color of sensory evaluation were decreased by addition of SFFs (p<0.05). Therefore, we conclude the SFFs can improve the texture and sensory properties of the beef jerky. In particular, the SFS is a good ingredient for the curing solution. However, studies are still needed on improving the $a_w$, pH, and surface color of the beef jerky to apply the SFFs for making beef jerky.

현곡(玄谷) 오장(五臟) 보방(補方)의 조성 약물과 그 기미배오(氣味配伍) 분석 (Analysis of the Properties and Tastes In Hyeongok's Formulas for Invigorating Five Viscera and their Ingredients)

  • 신순식
    • 대한한의학방제학회지
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    • 제19권1호
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    • pp.131-144
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    • 2011
  • Objectives : The objective of this study lies in theoretical establishment of formulas for invigorating five viscera for curing the asthenic syndrome of five viscera through analyzing the component medicines and combination principles of Hyeongok's formulas for invigorating five viscera, and furthermore, maximizing the clinical use of them. Methods : This study analyzed the component medicines and combination principles of Hyeongok's formulas for invigorating five viscera based on the theory for properties and tastes of herbal medicines from the "Yellow Emperor's Canon of Internal Medicine", the theory for principal herbal medicine, assistant herbal medicine, adjuvant herbal medicine, dispatcher herbal medicine, and the five elements doctrine. Hyeongok's formulas for invigorating five viscera are Bogantang, Boseemtang, Bobeetang, Bopyeotang, and Boshintang. Results : There are three methods for curing the asthenic syndrome of five viscera according to the five elements doctrine: in case of Bogantang invigorating the liver, invigorating the kidney and purging the lung; Boseemtang, invigorating the heart, invigorating the liver and purging the kidney; Bobeetang, invigorating the spleen, invigorating the heart and purging the liver; Bopyeotang, invigorating the lung, invigorating the spleen and purging the heart; Boshintang, invigorating the kidney, invigorating the lung and purging the spleen. Conclusions : First, to cure the asthenic syndrome of five viscera, the methods of invigorating five viscera, and purging five viscera should be used according to the five elements doctrine. Secondly, herbal medicines appropriate for those treatment methods should be chosen according to the theory for properties and tastes of herbal medicine and thirdly, the combination of those herbal medicines should be carried out according to the theory for principal herbal medicine, assistant herbal medicine, adjuvant herbal medicine, dispatcher herbal medicine. As a good example, Hyeongok's formulas for invigorating five viscera are combined according to the above theories. In conclusion, this formula was created by applying to the theory for properties and tastes of herbal medicines.

Monitoring of a CFRP-Stiffened Panel Manufactured by VaRTM Using Fiber-Optic Sensors

  • Takeda, Shin-Ichi;Mizutani, Tadahito;Nishi, Takafumi;Uota, Naoki;Hirano, Yoshiyasu;Iwahori, Yutaka;Nagao, Yosuke;Takeda, Nobuo
    • Advanced Composite Materials
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    • 제17권2호
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    • pp.125-137
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    • 2008
  • FBG (Fiber Bragg Grating) sensors and optical fibers were embedded into CFRP dry preforms before resin impregnation in VaRTM (Vacuum-assisted Resin Transfer Molding). The embedding location was the interface between the skin and the stringer in a CFRP-stiffened panel. The reflection spectra of the FBG sensors monitored the strain and temperature changes during all the molding processes. The internal residual strains of the CFRP panel could be evaluated during both the curing time and the post-curing time. The temperature changes indicated the differences between the dry preform and the outside of the vacuum bagging. After the molding, four-point bending was applied to the panel for the verification of its structural integrity and the sensor capabilities. The optical fibers were then used for the newly-developed PPP-BOTDA (Pulse-PrePump Brillouin Optical Time Domain Analysis) system. The long-range distributed strain and temperature can be measured by this system, whose spatial resolution is 100 mm. The strain changes from the FBGs and the PPP-BOTDA agreed well with those from the conventional strain gages and FE analysis in the CFRP panel. Therefore, the fiber-optic sensors and its system were very effective for the evaluation of the VaRTM composite structures.

CSC 기반 저탄소 콘크리트 2차제품 제조를 위한 OPC 페이스트의 촉진탄산화 특성에 관한 실험적 연구 (Experimental Study on Accelerated Carbonation Characteristics of OPC Paste for CSC-Based Low Carbon Precast Concrete Products)

  • 윤준태;김영진;심상락;류동우
    • 한국건축시공학회지
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    • 제24권3호
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    • pp.285-295
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    • 2024
  • 본 연구에서는 500℃·hr의 증기양생을 실시한 OPC 페이스트에 대하여 1atm 20% 농도의 CO2와 5atm 99% 농도의 고농도 CO2 조건 하의 촉진 탄산화의 영향평가를 수행하였다. 이를 위하여 XRD, FT-IR을 통한 화학적 분석과 SEM, 압축강도 측정을 통한 물리적 특성 분석을 실시하였다. 그 결과 CO2 20% 농도의 상압 탄산화를 수행하는 경우 뚜렷한 내부 조직구조 치밀화 및 압축강도 증진 효과를 관찰할 수 있었고, CO2 99% 농도의 5atm 가압 탄산화를 실시할 경우 표면조직구조가 빠르게 치밀해지며 CO2 확산침투율이 크게 떨어지게 되어 압축강도 등 유의미한 수준의 물리적 특성 개선이 일어날 정도의 탄산화를 진행할 수 없었다.

삼축압축시험을 이용한 NSS 혼합토의 강도정수 평가 (Estimation of Strength Parameter of Soil-NSS Mixture by Triaxial Compression Test)

  • 오세욱;이길호;권혁기;권영철
    • 한국지반환경공학회 논문집
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    • 제14권11호
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    • pp.65-71
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    • 2013
  • 흙 포장의 장점에도 불구하고 흙 자체의 성질을 개선하기 위한 고화재로 시멘트가 주로 사용되고 있는 점 등이 개선되지 않아 활발한 사용에 저해요인으로 지적되어 왔다. 최근 중금속 확산 등을 막고 소정의 강도를 확보할 수 있는 친환경 고화재가 개발되어 실제 적용되고 있다. 그러나 이러한 공법은 현장에서의 경험 등에 의해 배합을 결정하는 것이 현재까지의 상황이며, 좀 더 체계적인 강도 파악에 대한 연구는 미흡한 실정이다. 따라서 본 연구에서는 혼합토에 대한 삼축압축시험을 혼합토의 혼합비율과 전단강도 특성의 상관성을 분석하기 위하여 실시하였다. 혼합토에 대한 삼축압축시험 결과로부터 준설점토와 모래, 그리고 화강풍화토와 유기질토의 네 가지의 흙 종류별로 점착력과 내부마찰각의 변화를 양생 기간에 따라 관찰하였다. 4가지의 연구 대상 지반 중 준설점토와 화강풍화토의 점착력은 양생 기간이 늘어날수록 증가하는 추세를 뚜렷하게 보였다. 반면, 준설 모래와 유기질토는 양생 기간에 따른 증가가 적게 나타났으며, 점착력도 작았다. 내부마찰각의 경우에는 모든 원지반 재료에서 양생일수와 고화재의 종류에 상관없이 일정한 경향을 나타냈다.

구조용 집성재 제조용 접착제(Phenol-Resorcinol-Formaldehyde Resin) 유전 가열을 위한 고주파 전기장 세기 추산 (Estimation of Radio Frequency Electric Field Strength for Dielectric Heating of Phenol-Resorcinol-Formaldehyde Resin Used for Manufacturing Glulam)

  • 양상윤;한연중;박용건;엄창득;김세종;김광모;박문재;여환명
    • Journal of the Korean Wood Science and Technology
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    • 제42권3호
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    • pp.339-345
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    • 2014
  • 집성재의 생산성 향상을 위한 고주파 가열 경화기술에 대해 연구하였다. 고주파가 유전체에 가해지면 내부에서 에너지 손실에 의한 발열이 발생한다. 집성재를 구성하는 라미나와 접착제는 유전체이므로 집성재에 고주파를 주사하면 내부에서 발열이 발생한다. 집성재 제조에 이용되는 대부분의 상온 경화형 접착제는 고온에서 빠른 경화가 이루어지므로 고주파 가열 기술을 이용하면 집성재 내부 접착층의 온도를 상승시킴으로써 빠른 경화를 유도할 수 있다. 본 연구에서는 낙엽송재와 phenol-resorcinol-formaldehyde (PRF) 접착제의 유전 특성을 평가하고, 집성재 내부의 접착층의 빠른 경화를 유도하는 고주파 가열 경화 기작을 이론적으로 분석하였다. 연구 결과, 온도상승인자인 PRF 접착제의 상대손실계수가 낙엽송재의 상대손실계수에 비해 높았으나, 온도상승저해인자인 밀도와 비열도 높았다. 그러나 상대손실계수의 비율이 온도상승저해인자의 비율보다 높기 때문에 고주파 가열에 의한 발열량은 접착제에서 더 높을 것으로 예상된다. 이러한 실험 결과를 이용한 이론적 접근을 바탕으로, 접착층이 목표온도까지 상승하기 위한 ISM 영역의 고주파 주파수 별 전기장의 상대 세기를 추정하였다.

방풍통성산(防風通聖散)의 문헌(文獻) 및 형상의학적(形象醫學的) 고찰(考察) (Documentational Study and Observation from the View of Hyungsang Medicine on Bangpungtongseong-san)

  • 석민희;김준홍;이용태
    • 동의생리병리학회지
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    • 제22권1호
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    • pp.51-59
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    • 2008
  • The following conclusions were obtained from the studies on Bangpuntongseongsan both from the documents and Hyungsang medicine. Bangpungtongseong-san was created by Yu Wan-so to relieve both interior and exterior of disease from the pathogenic fire, and it cures wind syndrome and dry syndrome. Bangpungtongseong-san is of light herbal combination and it works in the upper part of the body and is mainly applied to skin disease. Perspiration without harming the exterior and purgation without hurting the interior shows that it is not a severe prescription belonging to meditation therapy. It is mostly used for curing the disease of internal heat caused by over drinking and consuming heavy food, and it has special relationship with Yangmyung meridian. It is mentioned in the chapters of spirit, head, face, eye, ear, nose, throat, skin, hair, prescription, wind, dryness, fire, internal damage, epidemic infectious disease, carbuncle and cellulitis, ulceration, and pediatrics of ${\ulcorner}$Donguibogam${\lrcorner}$. It is usually applied to those who belong to Yangmyung type of the six meridian types or wind type, who has excessive heat, people with red complexion, reddened nose, pimples over the face and nose, coarse heel, loss of hair due to wind-heat, and to those who tend to have dandruff. Through examination over the cases treated with Hyungsan medicine, Bangpungtongseong-san was found efficacious in bloodshot eyes, brandy nose, loss of hair, various skin problems, tetanus, acute alcoholism, paralysis of hand and foot, deafness, and tinnitus.

금원대(金元代)의 소아과학(小兒科學)에 관한 연구 (The Medical Study about Pediatrics for Geum(金) and Won(元) Dynasty)

  • 박현국;김기욱;김정호
    • 대한한의학원전학회지
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    • 제21권1호
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    • pp.13-26
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    • 2008
  • Pediatrics in Geumwon(金元) age had fanned peculiar children's etiology, Byeonggihak(病機學) and Byeonjeungnon(辦證論) curative system grounded on medical theory in Geumwonsadaega(金元四大家). Yuwanso(劉完素), who was front-running man in that age, used so many times 'Yanggyeoksan(凉隔散)' or 'Bangpungtongseongsan(防風通聖散)' which have Hanryang(寒凉) disposition for curing children's disease in view of pathology in Yeoldahanso(熱多寒少), which is his special academic thought, after then Judangye(朱丹溪) succeed Yuwanso(劉完素)'s this view of pathology, Yang-eumjahyeol(養陰滋血) developed the one and made it a standing rule to cure children. Also Idongwon(李東垣) grasped that the main cause of disease is starvation because of war. As a result of it, he insisted on theory, internal cause's outbreak of person's illness, Naesangbiwi(內傷脾胃), Baekbyeong-yusaeng(百病由牛). In this view of this principle, he assorted and used following medicine 'Seungma(升麻), Siho(柴胡), Hwanggi' as 'Seungbalyanggi(升發陽氣)' method to cure children, and concentrated on children's spleen and stomach cure with this way. Jangjongjeong(張從政) applied 'Purgation therapy[攻下法]', Hantoha(汗吐下) centered on the theory of exogenous factors[外因說] , which explains that children's disease is Sagichimseup(邪氣侵襲), too. Like this, in Geumwon(金元) age, they had studied very seriously about main cause of children' s disease in two part, an internal cause and an external cause. Also, in pathological part they had approached academically 'Hwayeolchibyeong(火熱致病)' and 'Gigiseunggangsiljo(氣機乘降失調)' from diverse angles.

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수치분석을 통한 내부구속 매스콘크리트의 온도균열지수 결정 (Determination of Thermal Cracking Index of Internal Restricted Mass Concrete Using a Numerical Analysis)

  • 서기영;김희성;진치섭
    • 한국구조물진단유지관리공학회 논문집
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    • 제11권1호
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    • pp.57-67
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    • 2007
  • 콘크리트 구조물의 사용수명은 콘크리트의 초기에 발생하는 균열에 큰 영향을 받는다. 특히 매스콘크리트 구조물에서는 수화열이 초기 온도균열의 주요한 원인이 된다. 이러한 온도균열은 콘크리트 표준시방서에 제시된 온도균열지수를 통해 분석할 수 있다. 따라서 본 논문은 내부구속이 지배적인 매스콘크리트에서 여러변수(시멘트종류, 타설높이, 양생조건, 타설온도, 단위시멘트량)에 따른 온도균열지수를 해석적으로 분석하였고, 분석결과는 변수의 변화에 따른 온도균열지수의 증감률로 나타내었다. 이러한 결과는 시공이나 설계시 온도균열을 파악하는 데 도움을 주어 경제적이고 안정적인 매스콘크리트 구조물의 설계에 유용하게 활용될 것으로 판단된다.

모형옹벽실험을 이용한 폐주물사 혼합재의 지반공학 적용성 연구 (A Study on the WFS Co-mixtures by Small Scale Retaining Wall Test)

  • 조재윤;이관호;이인모
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2000년도 봄 학술발표회 논문집
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    • pp.419-426
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    • 2000
  • The purpose of this study is to present the application of WFS co-mixtures for retaining wall as flowable backfill. The fly ash, generated at the Tae-An thermoelectric power plant, was used in this research and was classified as Class F. Green Sand, Furane Sand, and Coated Sand, which had been used at a foundry located in Pusan, were used. Couple of laboratory tests and small scale retaining wall tests were performed to obtain the physical properties of the WFS co-mixtures and the possibility of backfill materials of retaining wall. The range of permeability for all the co-mixtures was from 3.0${\times}$10$\^$-3/ cm/s to 6.0${\times}$10$\^$-5/ cm/s. The unconfined strength of the 28-day cured specimens reached around 550kPa. Results of the consolidated-undrained triaxial test showed that the internal friction angle is between 33.5$^{\circ}$ and 41.8$^{\circ}$. The lateral earth pressure against wall decreased up to 80% of initial pressure within a 12 hours and the total lateral earth pressure is less than that of typical granular soil. It was enough to construct the backfill for the standard retaining of 6m with just two steps, like fill the co-mixtures for half of retaining wall, and then fill the others after 1 day. The stability of retaining wall for overturning and sliding increased as the curing time elapsed.

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