We analyzed the anthocyanin accumulation, abscisic acid (ABA), gibberellic acid (GA) contents and metabolic genes expression in berry skins under high temperature (High T) at veraison, in order to investigate the cause of bad coloration of 'Kyoho' grape due to High T in summer season. The coloration of ‘Kyoho’ grapes was stopped by High T for 10 days from veraison, and the fruit quality was not affected except skin color. Total anthocyanin of skins was decreased by High T treatment and malvidin and peonidin were decreased compared to control. In berry skins, ABA content did not decrease by High T treatment, but it was rather higher than that of control. GA content was increased about two times compared to the control after 10 days of High T treatment, which caused decreased ratio of ABA/GA. Analysis of expression of anthocyanin biosynthetic genes showed that the early biosynthetic genes were not affected by High T and the expression of UFGT was decreased by temperature treatment. ABA biosynthetic gene expressions were not affected by High T and the expression of GA20ox1 and GA2ox1/2, which are known to regulate the biosynthesis and inactivation of GA, were increased and decreased by High T, respectively. Therefore, the bad coloration of ‘Kyoho’ grapes under the High T at veraison was due to inhibition of anthocyanin biosynthesis of skin, and it was suggested that the anthocyanin biosynthesis was controlled by the ratio of ABA and GA rather than ABA content.

Recent changes in the construction method of piles to minimize noise, along with the development of high-strength reinforcement, have provided an economical high performance RC pile development to compensate for the disadvantages of existing PHC piles. In this study, a methodology for the development of cross - section details of high performance RC piles of various performances is presented by freely applying high strength steel and concrete. This study suggested a technique for calculating bending moments for a given axial force corresponding to the allowable crack widths and this can be used for serviceablity check. In calculating the design shear force, the existing design equation applicable to the rectangular or the I section was modified to be applicable to the hollow circular section. In particular, in the limit state design method, the shear force is calculated in proportion to the axial force, and the procedure for calculating PV diagram is established. Last, the section details are determined through PM diagrams that they have the similar flexural and axial-flexural performances of the PHC pile A, B and C types with a diameter of 500 mm. To facilitate the application of the selected standard sections to the practical tasks, the design PM diagram and design shear forces are proposed in accordance with the strength design method and limit state design method.

대규모 유한요소 모델을 빠르게 해석하기는 위해서 병렬 희소 솔버를 필수적으로 적용해야 한다. 이논문에서는 미세하게 변화하는 시스템 행렬을 대상으로 연속적으로 해를 구해야 하는 문제에서 효율적으로 적용가능한 반복-직접 희소 솔버 조합 기법을 소개한다. 반복-직접 희소 솔버 조합 기법은 병렬 희소 솔버 패키지인 PARDISO에 제안 및 구현된 기법으로 새롭게 행렬값이 갱신된 선형 시스템의 해를 구할 때 이전 선형 시스템에 적용된 직접 희소 솔버의 행렬 분해(factorization) 결과를 Krylov 반복 희소 솔버의 preconditioner로 활용하는 방법을 의미한다. PARDISO에서는 미리 설정된 반복 회수까지 해가 수렴하지 않으면 직접 희소 솔버로 해를 구하며, 이후 이어지는 갱신된 선형 시스템의 해를 구할 때는 최종적으로 사용 된 직법 희소 솔버의 행렬 분해 결과를 preconditioner로 사용한다. 이 연구에서는 첫 번째 Krylov 반복 단계에서 소요되는 시간을 동적으로 계산하여 최대 반복 회수를 설정하는 기법을 제안하였으며, 주파수 영역 해석에 적용하여 그 효과를 검증 하였다.

According to the automobile industry has been developing day by day, traffic accidents are increasing and the rear-end collision is the second largest of the entire collision. Due to the high social cost caused by rear-end collision, several studies are in progress at home and abroad. Previous studies have shown that neck injury caused by rear-end collisions can be prevented by seat conditions. In this study, to find the condition that reduces neck injury, change of neck injury in rear-end collision is analyzed according to headrest height, seatback angle, and seatback torque using BioRID II dummy model and passenger behavior analysis program MADYMO. Therefore, it is expected that the condition of each variable to reduce the risk of injury to the neck can be applied to the seat design, which will reduce the injury and the social cost caused by the rear-end collision.

Severe wall thinning is found on the tube of a low-pressure evaporator(LPEVA) module that is used for a heat recovery steam generator(HRSG) of a district heating system. Since wall thinning can lead to sudden failure or accidents that lead to shutdown of the operation, it is very important to investigate the main mechanism of the wall thinning. In this study, corrosion analysis associated with a typical flow-accelerated corrosion(FAC) is performed using the corroded tube connected to an upper header of the LPEVA. To investigate factors triggering the FAC, the morphology, composition, and phase of the corroded product of the tube are examined using optical microscopy, scanning electron microscopy combined with energy dispersive spectroscopy, and x-ray diffraction. The results show that the thinnest part of the tube is in the region where gas directly contacts, revealing the typical orange peel type of morphology frequently found in the FAC. The discovery of oxide scales containing phosphate indicates that phosphate corrosion is the main mechanism that weakens the stability of the protective magnetite film and the FAC accelerates the corrosion by generating the orange peel type of morphology.

1. 본 연구는 저지대 천수답지역인 캄보디아 남부 따게오주에서2012~2013년에 2년간 벼 집약재배관리 시스템(System of Rice Intensification: SRI)에 대한 현장 연구 결과이다. 2. 천수답 지역에서 2년간 SRI는 FP 보다 화학비료 사용 없이 쌀 수량이 증가 되었다. 캄보디아 천수답 농가의 SRI 은 어린모로 조기 이앙과 넓은 재식 밀도로 인해 이삭수 확보와 함께 지형에 따른 물 보유 능력과 오랜 기간 유기물 사용으로 수량이 증가된 것으로 판단된다. 3. 쌀 수량에 미치는 영향으로 총 질소 흡수량과 단위면적당 총 영화수는 (r2=0.95) 정의 상관관계를 보였으며, 천수답 지역에서 물 관리 방법은 어렵지만 유기물을 장기간 사용한 지역 농가의 쌀 생산은 증가 되었다. 4. 최근 국내에서 일부 지역에서 소식재배가 확대되고 있는데SRI원리를 소식재배와 연계한다면 보다 좋은 재배방법이 될것으로 기대된다.

Maturity and spawning of the pointhead flounder, Hippoglossoides pinetorum were investigated on the basis of samples collected in the coastal waters off Gangwon-do, East Sea from January 2012 to December 2013. The average total length of H. pinetorum was 25.0 cm and 21.9 cm for females and males, respectively. The spawning period was from May to July according to monthly changes gonadosomatic index (GSI) and maturity stages. The spawning period in Gangwon-do was delayed relatively to that in Gyeongbuk-do. The mature egg diameter ranged between 300-700 ㎛. The relationship between TL and fecundity (F) was F = 63.574 TL - 1471.3 (R2=0.7603), that is, the larger total length, the more fecundity H. pinetorum had. We estimated that the TLs at 50% group maturity were 25.6 cm for females and 19.9 cm for males. The spawning ecology by sea area should be considered efficient resource management for H. pinetorum. Furthermore, it is necessary to study more on the relationships among growth, maturity and water temperature variations in the East Sea.

본 연구의 목적은 3가지의 배추과 작물의 새싹에서 적색(R)과 원적외선(FR)광에 초점을 맞추어서 glucosinolate(GSL), 총 페놀, 총 플라보노이드, 비타민 C 함량, 항산화 활성을 평가하는 것이다. 제한된 환경조건에서 5일된 새싹에 3가지의 R/FR비율을 2일동안 24시간 노출시켜 식물화학물질과 항산화활성을 대조군[형광등, R:B(8:2), 암조건]과 비교하였다. 총 GSL 함량은 각 처리 기간 동안 3가지의 작물 중 브로콜리에서 가장 높았으며, 브로콜리 새싹에서 R/FR 비율이 증가함에 따라 총 GSL 함량이 감소하는 반면 배추와 무의 새싹에서는 유의하지 않은 결과를 보여주었다. 배추 및 브로콜리의 주요 GSL인 progointrin은 대조군에 비해 R/FR 비율이 감소함에 따라 최대 38%, 69%까지 감소하였다. 3가지 배추과 새싹에서 페놀, 플라보노이드 및 비타민 C의 함량 모두 암조건에서 가장 낮았다. 총 페놀 및 항산화 활성은 3가지 배추과 새싹에서 R/FR 비율이 감소할수록 증가하는 반면, 총 플라보노이드와 비타민 C 함량은 작물 간 다른 양상을 보였다. 이러한 결과는 FR의 보광에 따라 배추과 새싹의 기능적 품질을 향상시킬 것으로 기대된다.

본 연구에서는 지방 알코올을 이용하여 탄소 길이에 따른 술폰산계 음이온 계면활성제를 합성하였으며, 합성한 계면활성제들의 구조를 FT-IR과 1H NMR 분석을 통하여 확인하였다. 음이온 계면활성제의 임계미셀농도(critical micelle concentration: cmc)는 10-5∼10-3mol/L이며, 임계미셀농도에서의 표면장력 값은 26∼32 mN/m이었다. 합성한 술폰산계 계면활성제의 분자당 최소 영역값은 1.68∼1.30nm2이다. 음이온 계면활성제의 분자당 최소 영역이 감소하였다. 합성한 계면활성제의 물성은 임계미셀농도, 기포력, 유화력, 접촉각을 측정하였다.

여름철 고온으로 인해 ‘거봉’ 포도의 착색 불량이 나타나는 원인을 안토시아닌 조성의 변화로부터 구명하기 위해 본 실험을 수행하였으며, 같은 대립계 포도 품종인 ‘흑보석’의 과실 품질과 안토시아닌의 변화를 함께 비교 하였다. 착색 초기부터 30일 동안의 고온 처리에 의해 ‘거봉’과 ‘흑보석’ 모두에서 과피의 착색이 감소하였지만, ‘흑보석’은 온도 처리의 종료 이후 안토시아닌 함량이 대조구의 수준으로 증가하였고, ‘거봉’은 착색이 정지된 상태로 안토시아닌 함량이 증가하지 못했다. 고온에 의해 ‘거봉’의 안토시아니딘은 Mal, Del, Pet의 순으로 크게 감소하였으며, 개별 성분으로는 diglucoside 및 Mal-acylated 형태가 가장 크게 감소하였다. 안토시아닌의 형태별 함량을 비교한 결과, ‘거봉’ 과피에서 고온에 의해 acylated 형태가 non-acylated 형태에 비해서 더 크게 감소하였고, B ring의 tri-hydroxylated 형태가 di-hydroxylated 형태보다 더 큰 비율로 감소하였다. ‘거봉’에서 모든 그룹의 안토시아닌 함량이 총 안토시아닌과 비슷한 경향으로 감소하였고, ‘흑보석’에서는 모든 그룹의 합성이 고온에 의해 억제되었다가 온도 처리가 종료된 이후 대조구의 수준으로 회복되었다. 따라서 착색 초기의 고온에 의한 ‘거봉’의 착색 불량은 특정 안토시아닌의 감소에 의한 것이 아니라, 전체적인 안토시아닌의 생합성 자체가 고온에 의해 억제되었기 때문으로 판단되었다.

본 연구는 저장기간동안 변화하는 매실주의 아미그달린의 함량 변화를 알아보고자 매실 와인과 매실 침출주를 제조하였다. 매실 와인은 매실과 설탕(1:1)을 섞어 3개월간 숙성한 후 (21°Brix)로 맞춘 뒤, 매실의 유무로 나누어 Saccharomyces cereviea를 첨가해 발효를 진행하여 숙성시켰다. 매실 침출주는 매실과 담금주(30도)를 1:1 비율로 섞어 매실, 매실과 씨를 모두 제거, 씨만 제거한 것으로 나누어 3개월 동안 숙성을 하였다. 매실 와인의 아미그달린 함량은 초기 매실청의 상태로 3개월 저장하였을 때 증가한 것을 볼 수 있었다. 이후 12일 동안의 1차 발효 동안 매실을 제거한 와인은 아미그달린 함량이 감소하였지만, 매실이 남아있는 와인은 아미그달린 함량이 증가하였다. 저장기간이 늘어 16일 동안의 2차 발효 이후에는 아미그달린 함량이 두 와인 모두 감소하였다. 또한 병입 후 3개월 동안 숙성과정에서는 더욱더 감소하였다. 매실 침출주의 아미그달린 함량은 3개월의 침출 과정에서 1개월 이후 크게 증가하였으나 점차 감소하였고, 숙성 과정에서는 매실의 유무에 관계없이 아미그달린 함량은 모두 감소하였다. 일반적으로 저장기간이 길수록 아미그달린의 함량은 줄어들었으나 그 속도를 더욱 줄이기 위해 전처리 연구가 필요하다고 사려된다.

This study investigates the relationship of two architectures ‘Kim Sa-haeng’ and ‘Park Ja-cheong.’ They were the architects whose architecture were established and well known however they were not acknowledged by the people. Because they were not revealed under the large-scale national construction in complicated circumstances at home and abroad. The results were as follows; First, Kim Sa-haeng who was an overseas architect in Yuan dynasty stood out in all areas of architecture. Particularly in making royal tombs; His works were recognized as the most beautiful royal tombs ever existed and was later on followed by the Joseon dynasty. Second, Park completed the construction of Joseon's by faithfully reflecting on the discussed process of Neo-Confucian while coming after the time of the construction of Kim Sa-haeng. Third, although Kim Sa-haeng was a vassal of the Buddhist nation in Goryeo, he built the Moon-myo, a Confucian inspired temple of Joseon. Park Ja-cheong, who continued to build Kim Sa-haeng's architecture, reproduced Kim Sa-haeng's confucian's temple of Joseon dynasty while modifying it according to the situation in Joseon dynasty. The constructions of the two architects' monuments continues unabatedly. Their architecture has continued without massive changes.

The present study was carried out to deduce optimum harvesting time based on fruit traits that were examined with fruits hanging the higher part (HP, higher than or equal to 2m height from the ground) and lower part (LP, lower than or equal to 1.5m height from the ground) on ‘Niitaka’ tree. The fruits of HP compared to of LP tended to be heavy and showed significantly higher soluble solid contents (SSC), hardness and gravity at each of the harvest time. On the basis f the discrepancies of the fruit traits between HP and LP, harvest time for the fruits of LP are acquired to be delayed for raising fruit weight and SSC. Due to the substantial probability of flesh pithiness based on the dramatic decrease of fruit gravity, it is necessary that the fruits of LP distributed just after harvesting or stored for short-term period.

The purpose of this study was to investigate the current status of odor and to examine the application method of the odor emission standard in a restaurant environment. The complex odor dilution concentrations (“times”) and odor compounds were measured in 8 restaurants. The highest complex odor dilution times were 966 in outlets and 97 in site boundaries of C restaurants. The average complex odor dilution times were 632 in outlets and 29 in site boundaries, which exceeded the allowable odor discharge standard of residential areas. Eighteen of the 22 specified offensive odor substances were detected. Aldehyde-type substances showed high concentrations, and the highest concentration of ethanol was detected in addition to the designated odorous substances. Dichloromethane, benzene, and phenol, which are harmful air pollutants, were also detected. The odorant concentrations of restaurants were found to exceed the odor standard threshold in A, B, and F restaurants. Upon review of the Japanese-style odor index respective to restaurant odor, it is difficult to apply an equivalent emission allowance standard as the permissible emission standard of the workplace. It is necessary to regulate emission standards by different emission standards. In the future, it will be necessary to determine how to measure the odor index and how to apply the odor emission standard to everyday facilities, such as restaurants, grocery stores, etc.