• Journal of Animal Science and Technology
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• 제47권3호
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• pp.457-464
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• 2005

A total of 80 pigs were used to investigate the effect of crossbred method on meat quality. Crossbred pigs were alloted into one of two experimental groups[T1 : Landrace ${\times}$ Yorkshire ${\times}$ Duroc(LYD) and T2: Yorkshire ${\times}$ Berkshire ${\times}$ Berkshire(YBB)]. Crossbred pigs were slaughtered at approximately 110kg live weight, and pH, cooking loss, texture, shear force, color(CIE $L^*$ $a^*$ $b^*$), fatty acid composition and sensory evaluation were measured in pork loin. Crude fat percentage was higher in YBB, whereas protein was higher in LYD than that for the other groups. Shear force was lower in YBB than LYD, but, pH and water-holding capacity were not significantly different. In meat color, $L^*$ was higher in YBB than LYD, whereas $a^*$ and $b^*$ were not significantly different between breeds. Hardness, adhesiveness and gumminess of YBB were significantly lower than LYD. Saturated fatty acid of YBB was lower than that for LYD and essential fatty acid was higher in YBB. In sensory evaluation of cooked meat, color, marbling score and overall acceptability were significantly higher in YBB, Aroma, flavor, taste, juiciness and overall acceptability of YBB were significantly higher than LYD in fresh meat. In conclusion, the overall meat quality was better in YBB than that for LYD.

• Journal of Animal Science and Technology
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• 제50권1호
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• pp.121-132
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• 2008

[Landrace×Yorkshire]×Duroc(LYD) 및 [Yorkshire×Berkshire]×Berkshire(YBB) 삼원교잡종과 흑색계 영국 Berkshire(BB; British berkshire), 가고시마 Berkshire(KB; Kagoshima Berkshire), [재래돼지×멧돼지(KNW; Native black pig×Wild boars)] 이원교잡종에서 생산된 돼지 100두를 생체중 110 kg 도달시 도축한 후 등심을 채취하여 분석하였다. 수분 함량은 KW, 조단백질은 YBB와 KW, 콜레스테롤 함량은 YBB가 다른 품종들보다 유의적으로 높았다(p<0.05). 다른 품종들에 비해 YBB는 보수력과 pH는 낮고, 전단가는 높았다(p<0.05). LYD에서 명도(L*)가 유의적으로 높게 나타났으며(p<0.05), 적색도(a*)와 파쇄성에서는 품종들 간에 유의적인 차이가 없었다(p>0.05). UFA/SFA와 EFA/UFA 비율과 EAA은 KW가 높게 나타났으나(p<0.05) SAAA는 유의적으로 낮았다(p<0.05). 총 아미노산 함량은 LYD와 BB가 각각 20.44%, 20.81%로 다른 품종에 비해 유의적으로 많았다(p<0.05). 신선육 상태에서 품종은 육색, 드립로스, 마블링과 전체적인 기호도에 영향을 미쳤지만(p<0.05), 조리육의 경우 풍미를 제외한 관능검사 항목에는 영향을 미치지 않았다(p>0.05).

• 센서학회지
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• 제31권4호
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• pp.194-213
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• 2022

This study comprehensively reviewed four types of integrated-optic electric-field sensors based on titanium diffused lithium-niobate waveguides: symmetric and asymmetric Mach-Zehnder interferometers, 1×2 directional couplers, and Y-fed balanced-bridge Mach-Zehnder interferometers. First, we briefly explain the crystal properties and electro-optic effect of lithium niobate and the waveguide fabrication process. We theoretically analyzed the key parameters and operating principles of each sensor and antennas. We also describe and compare the design, simulation, implementation, and performance tests: dc and ac characteristics, frequency response, dynamic range, and sensitivity. The experimental results revealed that the sensitivity of the sensor based on the Y-fed balanced bridge Mach-Zehnder interferometer (YBB-MZI) was higher than that of the other types of sensors.

• 전자공학회논문지
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• 제53권1호
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• pp.29-35
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• 2016

집적광학 $Ti:LiNbO_3\;1{\times}2$ Y-fed Balanced-Bridge 마하젠더 간섭기(YBB-MZI) 구조에 다이폴 패치 아테나를 적용해서 $1.3{\mu}m$ 파장대역에서 동작하는 전계센서를 구현하였다. BPM 전산모사를 통해서 소자 설계 및 동작성능을 검증하였고, $1.3{\mu}m$ 파장대역에서 ~16.6 V 스위칭전압과 이에 대응해서 소멸비는 ~14.7 dB로 측정되었다. 10 MHz, 50 MHz 각각의 주파수에서 감지 가능한 최소 전계는 1.12 V/m, 3.3 V/m로 측정 되었으며, 이에 대응되는 각 주파수에서 ~22 dB, ~18 dB의 다이나믹 범위가 측정되었다. 제작된 센서는 0.29~29.8 V/m 범위의 전계세기에 대해서 선형응답 특성을 나타내었다.

• Journal of the Optical Society of Korea
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• 제18권6호
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• pp.739-745
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• 2014

We have demonstrated a $Ti:LiNbO_3$ electro-optic electric-field sensor utilizing a $1{\times}2$ Y-fed balanced-bridge Mach-Zehnder interferometric (YBB-MZI) modulator, which uses a 3-dB directional coupler at the output and has two complementary output waveguides. A dc switching voltage of ~25 V and an extinction ratio of ~12.5 dB are observed at a wavelength of $1.3{\mu}m$. For a 20 dBm rf input power, the minimum detectable electric fields are ~8.21, 7.24, and ~13.3 V/m, corresponding to dynamic ranges of ~10, ~12, and ~7 dB at frequencies of 10, 30, and 50 MHz respectively. The sensors exhibit almost linear response for an applied electric-field intensity from 0.29 V/m to 29.8 V/m.

• 한국생물물리학회:학술대회논문집
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• 한국생물물리학회 2001년도 학술 발표회 진행표 및 논문초록
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• pp.51-51
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• 2001

Two open reading frame designated as ylaC and ylaD in the Bacillus subtilis genomic sequencing project, were cloned using pRB374 vector which is shuttle vector in E. coli and B. subtilis. YlaC and YlaD have the sequence homology to SigX and SigW to YbbM, respectively, which are known to be ECF sigmaand anti-sigma factor, respectively.(omitted)