• Asian-Australasian Journal of Animal Sciences
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• 제19권7호
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• pp.931-937
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• 2006

The full-length cDNA of the porcine SMPX gene was obtained by the rapid amplification of cDNA ends (RACE). The nucleotide sequences and the predicted protein sequences share high sequence identity with both human and mouse. The promoter of SMPX was sequenced and then analyzed to find the promoter binding sites. The reverse transcriptase-polymerase chain reaction (RT-PCR) revealed that SMPX has a high level of expression in heart and skeletal muscle, a very low expression in lung and spleen and no expression in liver, kidney, fat and brain. Moreover, SMPX has a differential expression level in skeletal muscle, the expression in 65-day embryos being higher than other stages. The porcine SMPX was mapped to SSCXp24 by using a somatic cell hybrid panel (SCHP) and was found closely linked to SW1903 using the radiation hybrid panel IMpRH. An A/G single nucleotide polymorphism (PCR-RFLP) in the 3'-untranslated region (3'-UTR) was detected in eight breeds. The analysis of allele frequency distribution showed that introduced pig breeds (Duroc and Large White) have a higher frequency of allele A while in the Chinese indigenous pig breeds (Qingping pig, Lantang pig, YushanBlack pig, Large Black-White pig, Small Meishan) have a higher frequencies of allele G. The association analysis using an experimental population (188 pigs), which included two cross-bred groups and three pure-blood groups, suggested that the SNP genotype was associated with intramuscular fat content.

• Asian-Australasian Journal of Animal Sciences
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• 제19권2호
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• pp.165-170
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• 2006

Using the somatic cell hybrid panel (SCHP) and radiation hybrid (IMpRH) panel, porcine SOCS2 gene was mapped at SSC5 (1/2) q21-q24 and closely linked with SW1383 marker (47 cR in distance), while SOCS3 gene was assigned to SSC12p11-(2/3p13) and closely linked with SW2490 (43 cR). The reverse transcriptase-polymerase chain reaction (RT-PCR) was performed to detect the expression of these two genes in the different tissues and the results showed that both SOCS2 and SOCS3 genes were widely expressed in tissues investigated (heart, liver, spleen, lung, kidney skeletal muscle, fat and brain), although some tissues showed lower gene expression. Moreover, SOCS2 and SOCS3 genes had different expression levels at different stages, in different tissues and in different breeds. A G/A substitution, which can be recognized by restriction enzyme of Cfr421, was observed in 5' untranslated region (5'-UTR) of SOCS2 gene. The allele frequencies was investigated by PCR-restriction fragment length polymorphism (PCR-RFLP) method and it showed that the allele frequency among Dahuabai, Erhualian, Yushan, Qingping, Large white and Landrace tested were different. Association analysis in a cross experimental populations revealed no significant association between the SOCS2 gene polymorphism and the economic traits investigated. The full-length coding regions (CDs) of porcine SOCS3 gene was obtained by RT-PCR.

• 한국강구조학회 논문집
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• 제17권1호통권74호
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• pp.33-43
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• 2005

본 논문은 스틸스터드로 구성된 골조에 경량기포모르터를 타설 양생하여 제작한 경량합성벽체의 반복가력 전단실험에 의한 에너지 소산능력과 압축내력 실험을 통한 압축성능의 평가에 대한 연구이다. 경량기포모르터의 유무, 경량기포모르터의 비중(0.6, 0.8, 1.0, 1.2), 마감재(경량기포모르터, OSB, 석고보드) 및 브레이스의 유무, 벽체의 단위(1단위-$900mm{\times}2,400mm$, 2단위-$1,800mm{\times}2,400mm$)를 변수로 하여 실시하였던 경량합성벽체의 전단내력 평가 실험 가운데 반복 실험 결과를 동일 조건의 단조 실험과 비교하였다. 또한 기존 스틸하우스벽체와 경량합성벽체의 압축내력도 실험을 통해 조사하였다. 반복가력 실험결과, 단조가력 실험체의 거동과 약간의 차이를 보이고 있으며 이는 벽체에 채운 경량기포모르터의 비중에 따른 차이라고 생각된다. 압축내력 실험결과, 기존형 실험체에 비하여 경량기포모르터를 타설한 실험체의 최대내력은 2~2.5배, 초기강성은 2~3배 정도 증가하였다.

• Investigative Magnetic Resonance Imaging
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• 제20권3호
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• pp.152-157
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• 2016

Purpose: Operating room management is the serious and complex task for hospital managers and the common approach is to develop relevant standard operational procedures. From patient and staff safety perspective, operating room management should be well-studied and hospital should identify and address any potential risks. Simultaneous usage of different imaging and less-invasive treatment technologies demands strong management control. Materials and Methods: We have formed the multidisciplinary expert panel (surgeons, anesthesiologists, radiologists, healthcare managers etc.) for hybrid theater management standard operational procedure development. On the first stage the general concept of hybrid room design and patient routing was developed. The second stage included the technical details discussion. For patient safety improvement we modified the Surgical Safety Check-list in accordance with potential MRI-related safety challenges and concerns. Results: WHO Surgical Safety Checklist is a simple and easy-to use tool which includes three blocks of question (grouped by the surgery process). We have developed two additional blocks of questions for the intraoperative magnetic resonance investigation. It is very important to have a special detailed routing with a strong control of ferromagnetic devices and anesthesiology care. Conclusion: High-energy MRI (1.5-3.0T) is characterized by potential influence on patient and staff safety in case of hybrid surgery. It is obvious to have a strong managerial control of ferromagnetic devices and anesthesiology care. Surgical Safety Checklist is the validated tool for improving patient safety. Modification and customization of this check-list potentially provides the opportunity for surgery processes improving.

• Journal of Dairy Science and Biotechnology
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• 제38권4호
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• pp.222-229
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• 2020

This study was conducted to develop a novel cheese tofu hybrid product by increasing the calcium content of cheese, an animal protein source, and tofu, a vegetable protein source. Both pH and moisture were lower in the cheese tofu hybrid than those values in the control group (6.03% and 72%, respectively). Protein and fat were slightly higher than in the control (15.43% and 9.91%, respectively). Total bacteria count increased at the end of the product's shelf life, but did not affect its texture. The cheese tofu hybrid displayed stronger a) red, and b) yellow coloration than the control, and its lightness (L) was lower than that of the control. The cheese tofu hybrid possessed high hardness, and displayed high values for gumminess and brittleness. Sensory evaluation by a specialized agency examined consumer preferences, purchase intentions, strengths, and weaknesses of the developed product line. A panel of 30 female volunteers in their 20s and 40s recorded an overall preference for cheese tofu of 5.40 points, fairly good. Cheese tofu was found to be better than the control tofu, with appealing differences in appearance, color, nutty aroma, chewiness, and cheese flavor.

• 한국산학기술학회논문지
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• 제20권6호
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• pp.288-296
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• 2019

그간 복사 냉방은 천정이나 바닥면을 냉각 표면으로 활용하기 때문에 표면 온도를 노점 온도 이상으로 높이거나 보조적인 제습 에어컨을 설치해야 하는 문제가 있었다. 본 연구에서는 주택 적용을 목표로 복사 판넬 표면에 결로를 유발시킴으로써 냉각 열량을 증가시키고 실내 쾌적감도 개선할 수 있는 1.0 kW 용량의 복사-대류 방식의 하이브리드 냉방기에 대하여 검토하였다. 이 냉방기는 2개의 냉동 사이클 - 강제 대류 제습 사이클과 복사 판넬 냉방 사이클로 구성된다. 시제품 실험 결과 복사 판넬 사이클의 경우 실외 $35^{\circ}C/24^{\circ}C$, 실내 $27^{\circ}C/19.5^{\circ}C$의 표준 조건에서 냉매 순환량은 8.8 kg/h, 응축 온도 $51^{\circ}C$, 증발 온도 $8.8^{\circ}C$, 냉방 능력은 376 W, 성적계수는 1.75로 나타났다. 또한 복사 판넬의 온도는 $13^{\circ}C{\sim}14^{\circ}C$ 사이에서 고르게 분포되었다. 또한, 상대 습도가 감소할수록 냉방 능력은 감소하나 소비 동력은 거의 변화가 없었다. 제습 사이클의 경우, 표준 조건에서 냉매 순환량은 21.1 kg/h, 응축온도 $61^{\circ}C$, 증발 온도 $5.0^{\circ}C$, 냉방능력은 949 W, COP는 2.11로 나타났다. 한편, 복사 판넬과 제습 냉방 사이클을 동시에 가동시키며 표준 조건에서 시험 결과, 복사 판넬의 냉방 능력은 333 W, 제습부의 냉방 능력은 894 W, COP는 1.89로 나타났다. 홴 풍량이 감소하면 복사 판넬, 제습부 모두 냉방 능력이 감소함을 보였는데 특히 제습부에서 감소량이 두드러졌다. 본 실험 데이터를 기반으로 냉방 부하의 변동에 대비하여 가능한 제어 로직을 제시하였다.

• Advances in aircraft and spacecraft science
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• 제6권6호
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• pp.515-528
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• 2019

The structural vibrations of a flat plate induced by fluctuating wall pressures within wall-bounded transonic jet flow downstream of a high-aspect ratio rectangular nozzle are simulated. The wall pressures are calculated using Hybrid RANS/LES CFD, where LES models the large-scale turbulence in the shear layers downstream of the nozzle. The structural vibrations are computed using modes from a finite element model and a time-domain forced response calculation methodology. At low flow speeds, the convecting turbulence in the shear layers loads the plate in a manner similar to that of turbulent boundary layer flow. However, at high nozzle pressure ratio discharge conditions the flow over the panel becomes transonic, and the shear layer turbulence scatters from shock cells just downstream of the nozzle, generating backward traveling low frequency surface pressure loads that also drive the plate. The structural mode shapes and subsonic and transonic surface pressure fields are transformed to wavenumber space to better understand the nature of the loading distributions and individual modal responses. Modes with wavenumber distributions which align well with those of the pressure field respond strongly. Negative wavenumber loading components are clearly visible in the transforms of the supersonic flow wall pressures near the nozzle, indicating backward propagating pressure fields. In those cases the modal joint acceptances include significant contributions from negative wavenumber terms.

• 한국재난정보학회 논문집
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• 제10권3호
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• pp.388-395
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• 2014

본 논문에서는 구조물의 사용성 및 사용하중에 큰 영향을 미치지 않으며 기존에 개발되어진 재료를 활용하여 재료들의 방호 방폭 성능을 최대한 발휘할 수 있도록 복합패널을 구성하였다. 재료 각각의 특성이 발휘될 수 있도록 여러겹의 레이어 층으로 패널을 구성하였으며 구조물의 손상을 최소화 하고 강도와 내구성을 극대화 하여 일반 구조물 유지 보수에도 활용 가능한 보강용 패널의 제작을 위한 실험적 연구를 수행하였다.

• 자원ㆍ환경경제연구
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• 제22권1호
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• pp.3-29
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• 2013

The purpose of this study is to estimate consumer preferences on hybrid cars and electric cars by employing a choice experiment reflecting the various market conditions, such as different projected market shares of green vehicles and $CO_2$ emission regulations. Depending on different market scenarios, we examine as to which attribute and individual characteristic affect the preferences of potential consumers on green vehicles and further, forecast the potential market shares of green cars. The primary results, estimated by a conditional logit and panel probit models, indicate that sales price, fuel cost, maximum speed, emission of air pollutants, fuel economy, and distance between fuel stations can significantly affect consumer's choice of environment-friendly cars. The second finding is that the unique features of electric cars might better appeal to consumers as the market conditions for electric cars are improved. Third, education, age, and gender can significantly affect individual preferences. Finally, as the market conditions become more favorable toward green cars, the forecasted market shares of hybrid and electric vehicles will increase up to 67% and 14%.

• 대한설비공학회:학술대회논문집
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• 대한설비공학회 2005년도 동계학술발표대회 논문집
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• pp.173-178
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• 2005

Recently. we interested in renewable energy due to cost increase of the crude oil, etc. In this study solar assisted hybrid heat pump system that uses the solar heat and air as heat source analyzed by experimentally.'rho system could runs at dual mode. One is thermal storage mode of solar energy at day time and the other is heat pump mode with low temperature air as heat source at night time. In case of setting temperature over the limited range. high temperature water heated at the solar energy collecting tubes supplied to the storage tank. As results. it is founded that the heat pump performance Is higher than general heat pump which using the only air as a heat source. The developed system could be used as main healing equipment for the panel heating for the residential house.