The Gyeongju and Pohang earthquakes caused damages to many cultural properties; particularly, stone pagoda structures were significantly damaged among masonry cultural properties. To preserve these structures, it is necessary to understand their dynamic behavior characteristics under earthquakes. Analyses on such areas as deformation, frequency, maximum acceleration, permanent displacement, sliding, and rocking have to be performed. Although many analytical studies have already been conducted, dynamic behavior studies based on experiments are insufficient. Therefore, this study analyzed dynamic behavior characteristics by performing a shaking table experiment on a three-story stone pagoda structure at the Cheollongsa temple site damaged by the Gyeongju earthquake. As a result of the experiment, the displacements of stylobates did not occur significantly, but the tower body parts rotated. In particular, the rotation of the 1F main body stone was relatively larger than that of the other chief body stones because the 1F main body stone is relatively more slender than the other parts. In addition, the decorative top was identified as the component most vulnerable to sliding. This study found that the 1F main body stone is vulnerable to rocking, and the parts located on the upper part are more vulnerable to sliding.

변색기의 수준별 야간 고온이 포도 ‘거봉’의 과피색 발현에 미치는 영향을 분석하기 위해 시기별 과피색 변화, 과피 내 안토시아닌 및 식물호르몬 ABA와 GA 함량을 분석하였다. 변색기 20일 동안의 야간 24, 27°C 처리에 의해 ‘거봉’ 포도의 과피색 불량이 나타났으며, 야간 온도가 높을수록 과피색 발현이 더욱 억제되었다. 수확기 과실 품질을 분석한 결과, 야간 21°C 처리구에 비해 24, 27°C 처리구의 과방중, 과립중, 당도가 감소하였다. 야간 21°C 처리구의 과피에서 만개 후 50일부 터 안토시아닌이 축적되기 시작했고, 개별 안토시아닌 중 Mal 과 함께 총 안토시아닌 함량이 수확기까지 지속적으로 증가하였다. 야간 21°C 처리구를 기준으로 과피의 총 안토시아닌이 야간 24, 27°C 처리에 의해 감소하였으며, 개별 안토시아닌 중에서는 Peo를 제외한 나머지 안토시아닌의 감소 경향이 뚜렷하였다. 식물호르몬 ABA는 야간 21°C 처리구의 과피에서 변색기에 최대값을 보이고 다시 수확기까지 감소하였는데, 이러한 ABA 함량의 증가는 야간 24, 27°C 처리에 의해 감소 하는 경향이었다. GA는 변색기 과피에서 급격하게 감소하여 수확기까지 낮은 함량으로 유지되었는데, 야간 기온이 낮을수록 빠르게 감소하였다. 야간 21°C 처리구 과피에서 ABA/GA 값은 만개 후 60일에 최대값을 보이고 다시 수확기까지 감소하였지만, 이 증가 양상이 야간 고온에 의해 감소하며 과피 안토시아닌 축적과 동일한 경향을 보이며 변화하였다. 따라서 변색기 야간의 24°C 이상의 고온은 ‘거봉’ 포도의 과피색 발현을 억제하며, 이는 식물호르몬 ABA, GA의 비율 변화, 과실 당도 감소로 인한 총 안토시아닌 함량 및 조성 변화 때문으로 판단되었다.

The stochastic method is applied to simulate strong ground motions at seismic stations of seven metropolises in South Korea, creating an earthquake scenario based on the causative fault of the 2016 Gyeongju earthquake. Input parameters are established according to what has been revealed so far for the causative fault of the Gyeongju earthquake, while the ratio of differences in response spectra between observed and simulated strong ground motions is assumed to be an adjustment factor. The calculations confirm the applicability and reproducibility of strong ground motion simulations based on the relatively small bias in response spectra between observed and simulated strong ground motions. Based on this result, strong ground motions by a scenario earthquake on the causative fault of the Gyeongju earthquake with moment magnitude 6.5 are simulated, assuming that the ratios of its fault length to width are 2:1, 3:1, and 4:1. The results are similar to those of the empirical Green’s function method. Although actual site response factors of seismic stations should be supplemented later, the simulated strong ground motions can be used as input data for developing ground motion prediction equations and input data for calculating the design response spectra of major facilities in South Korea.

According to 「Hwangnyongsa Temple Central Column Record」among the remaining documents, under reconstruction the pagoda of Hwangnyongsa&s 9th floor was completed in July 872 on the lunar calendar. At that time, King Kyeongmun worried about sarira under its central column, saying the central column does not move, and then He ordered to lift the central column. So his servants lifted it on November 6th 872 and checked the sarira and put it back on November 25th on the lunar calendar. 「Hwangnyongsa Temple Central Column Record」did not document how to lift the central column which is tens of meters. therefore, this study inferred the way the central column of the pagoda of Hwangnyongsa was lifted in 872, left as a mystery. For that, this study set various hypotheses and it researched and analyzed hoisting technique that is a way to lift the pagoda of Hwangnyongsa and a column. In conclusion, this study inferred the most suitable hoisting technique for the pagoda of Hwangnyongsa at that time, based on the research and analysis of each chapter.

본 연구에서는 지역아동센터 종사자의 정서적 소진 및 정신건강 예방 책을 마련하는데 필요한 기초자료를 확보하고자 SSO모델을 근거로 역할 스트레스와 정서적 소진 및 정신건강의 관련성을 검증하였다. 대전지역의 지역아동센터 종사자를 대상으로 실시한 조사자료 중 140명의 자료를 활용하여 역할스트레스(Stress)→정서적 소진(Strain)→정신건강(Outcome)의 인과관계모형에 대해 구조방정식 모형으로 검증하였다. 그 결과, 연구모형의 적합도가 통계학적으로 유의미했으며 변수 간 관련성에 있어서도 역할스트레스가 정서적 소진을 통해 정신건강에 영향을 미치는 것으로 나타났다. 또한 역할과부하는 정신건강에 직접적인 영향을 미치는 것으 로 나타났다. 이러한 결과를 토대로 정서적 소진과 정신건강에 영향을 주는 역할스트레스를 낮출 수 있는 지원방안을 논의하였다.

PURPOSES : In this study, we analyzed the characteristics of nitrogen oxide and fine particulate matter concentration for boarding positions at the bus stop of an exclusive bus lane, using a correlation analysis and a generalized linear model. METHODS : To analyze the air pollution characteristics for boarding positions at the bus stop, data on nitrogen oxide, fine particulate matter concentration, relative humidity, temperature, wind speed, solar radiation, and bus traffic volume were acquired. Using the collected data, a correlation analysis for nitrogen oxide and fine particulate matter was carried out for each boarding position. Additionally, the prediction models for each pollutant were estimated using a generalized linear model, to analyze their characteristics. RESULTS : Correlation analysis revealed that relative humidity and bus volume were positively correlated with both nitrogen oxide and fine particulate matter concentrations in all boarding positions, whereas temperature, wind speed, and solar radiation were negatively correlated. Based on the estimated models from the generalized linear model, the nitrogen oxide concentration at the first measurement point was found to be affected by relative humidity, temperature, and bus volume, whereas at the second measurement point, it was found to be affected by relative humidity, temperature, and solar radiation. Additionally, all factors were significant for fine particulate matter concentration at both boarding positions. CONCLUSIONS : The analytical results indicated that the characteristics of nitrogen oxide and fine particulate matter concentration at the bus stop of an exclusive bus lane varied significantly depending on the boarding positions. Particularly, it was found that the correlation between solar radiation, and nitrogen oxide and fine particulate matter was different because of the conversion of nitrogen oxide to fine particulate matter.

Intercropping cereals with legumes is known to improve forage production and crude protein yield. Sorghum × sudangrass hybrids (SSH) have excellent dry matter content and high cultivation temperatures. In this study, we investigated the growth characteristics, forage productivity, and feed value of intercropping SSH with different legumes in rice paddy fields. We used five treatments in this study SSH monocropping and four intercropping treatments of SSH with, lablab, cowpea, sesbania, and two cultivars of soybean (Chookdu 1 and 2). SSH plant height was not significantly different between the monocropping and intercropping treatments. However, the plant heights of lablab, cowpea, and sesbania were significantly higher than those of the two soybean cultivars. The total dry matter yield (kg/ha) was significantly higher in SSH monocropping than in intercropping; among the intercropping treatments, the one with SSH and Chookdu 2 yielded the highest total dry matter yield. The SSH feed value was significantly different between the monocropping and intercropping treatments, although there were no differences between the intercropping treatments. Among the intercropped legumes, lablab showed the highest neutral detergent fiber and acid detergent fiber contents, and cowpea had the highest crude protein content. These results reveal that intercropping SSH with legumes in paddy fields could be a promising cultivation technique to maintain stable forage productivity.

To increase the selection efficiency for new cultivars in cut roses during breeding programs, phenotypes of seedlings in two cross combinations, C1 (Rosa hybrida ‘Yellow King’ x ‘Aladin’) and C2 (R. hybrida ‘Evelien’ x ‘Sunny Isle’), were investigated. Although most seedlings showed classic-type flower shapes, some (0.4% - 0.7%) had tomato-shaped flowers, especially at the young plant stage (6 months old). The variation in petal color was high, and pink and pink-mixed flowers were dominant, accounting for 72% in C1 and 76% in C2 at the mature plant stage (13-month-old plants). However, the seedlings had changes in the expression of petal color at different growth stages. The number of petals at the young plant stage had a strong positive correlation with those at the mature plant stage in C1 (r = 0.84***) and C2 (r = 0.73***). Sizes of flowers and petals increased with the growth of the seedlings, and their traits at the young plant stage had positive correlations with those at the mature plant stage in both C1 (r = 0.32***) and C2 (r = 0.39***). Prickle expression on stems was mostly in level 5 at the young plant stage and then dispersed to various classes at the mature plant stage, which increased the variation and coefficient of variation. To select seedlings for new cultivars through breeding processes, breeders should consider the growth stage for targeted traits.

The abnormal meat could caused by abscess, fibrosis and granuloma in the region of the neck by the adverse effect of foot-and-mouth disease (FMD) vaccination practice for Korean swine. After FMD vaccination was implemented in 2010, the number of incidences of abnormal meat has been increasing. In this study, it was evaluated whether needless intradermal injection (NII) of FMD vaccine reduces abnormal meat at the injection site in comparison to conventional intramuscular injection (IM). In addition, the onset of humoral immunity was analyzed in order to see if NII of this vaccine is able to mount comparable antibody response with IM. This study was carried out in four Korean pig farms. The O-type FMD vaccine was implemented via NII at three farms and the control group was vaccinated via IM. Antibody titers were compared from the serum samples taken from 10 random pigs at age of 8, 12, 16 and 22~24 weeks of age. The O+A type FMD vaccine was also compared with the same protocol. When test animals were slaughtered, incidence, type and size of abnormal meat were recorded. The results of this study showed that the antibody titers between intradermal and intramuscular group were similar but a significant difference in the incidence of abnormal meat formation was observed between two groups (p < 0.05). In summary, needless intradermal injection of FMD vaccination was proven to be effective for the onset of humoral immunity and reducing abnormal meat formation.

이 글에서는 신안해저문화재 가운데 자기 고족배(高足杯)에 주목하여 출수 현황과 조형 특징을 정리하고, 중국 내 생산 및 소비 유적 출토품과 비교를 통해 그 성격과 특징을 살펴 보았다. 필자가 지금까지 파악한 바로는 신안선에서 고족배가 60 여점 발견되었는데 이는 전체 도자기 수량의 0.3% 미만을 차지하는 매우 적은 수량이다. 그러나 청자와 백자가 모두 확인되며 특히 일부 백자 고족배의 경우 부량자국이 관할한 우수한 민간 요장에서 생산된 고 급 생산품이기에 일부는 특별한 목적성을 갖고 교역된 기종으로 여겨진다. 즉 일부 고족배는 높은 위상을 가진 고급 무역품으로 당시 중국 민간 요장에서 중앙으로 공납했던 양식과 유사하다는 점에 주목할 필요가 있다. 즉 원나라 관에 공납․유통되었던 것 과 유사한 양식을 갖춘 것이 무역에서 통제 대상이 아니라 오히려 고급 상품성을 가지고 지 역적․계층적으로 폭넓게 유통되었음을 확인한 셈이다. 따라서 신안선에서 발견된 고족배 분석으로 원대 도자무역의 개방된 성격을 확인할 수 있다. 한편 각종 회화와 문헌 자료를 통해 고족배의 용례에 대해 살펴본 결과 중국에서 술잔 혹 은 찻잔, 공양구로로 사용되었음을 확인하였다. 일본에서는 신안선에서 발견된 고족배의 비율을 반영하듯 소비지역에서 출토사례가 많지는 않았다. 그러나 그러한 가운데에도 일부 선 종 사찰에서 고족배가 출토되었다는 점은 소비지 성격을 이해하는데 참고자료로 도움이 된 다. 일본의 용례를 살펴본 결과 술잔, 과일이나 음식 등을 바치는 공양기로 사용되었을 가능 성이 가장 높았으며, 오랫동안 전세되어 내려오면서 그 용도가 바뀌어 다실에서 향로로 사용 되기도 하였다. 또 에도시대 중국 청자 고족배가 재현 대상이 되었던 사례를 확인하여, 일본 일부에서는 중국 고족배를 분명하게 인식하고 있었고 또 소장 대상으로서 애호했음을 알 수 있었다.

본 연구의 목적은 목상고등학교 김대중 동산을 대상으로 스토리텔링 기법을 적용하여 기념성이 강화된 학교 내 기념공간의 설계안을 제시하는 것이다. 이를 위해 먼저 공간설계에 적용할 수 있는 스토리텔링 영역과 기법에 대한 이론적 고찰을 수행하였다. 2020년 1월 ~3월 총 4회 동안 현황조사를 실시하고 이후 스토리텔링을 적용한 공간 및 동선의 구상, 기본설계, 실시설계, 시공의 연구과정을 거쳤다. 연구결과, 먼저 대상지에서 도출할 수 있는 기념공간의 아이덴티티를 스토리(Story), 맥락(Contextual), 담론(Discourse)이라는 스토리텔링의 3가지 영역으로 구분하고 이에 해당하는 설계요소들을 도출하였다. 도출된 설계요소들은 연구의 공 간컨셉에 따라 구상된 2개의 영역 및 4개의 공간으로 배치되었다. 기억영역(Memory area)의 경우, 정원공간(Garden space)에 기억의 정원, 옥중편지벽, 진입로를 배치하고, 숲공간(Forest space) 에 기억의 숲, 휴식공간, 독립운동의 길(산책로)을 배치하였다. 추모영역(Remembrance area)의 경우, 열린공간(Openspace)에 김대중 동상 및 기념비, 묵념공간, 추모마당, 추모길을 배치하고, 수벽 공간(Tree screen space)에 배롱나무숲, 배롱나무길을 배치하였다. 모든 설계요소들은 명명 (Naming), 연속성(Sequencing), 드러냄과 감춤(Revealing & Concealing), 수집(Gathering), 열림(Opening)의 5가지 스토리텔링 기법을 적용하여 설계되었고 이를 통해 기념성, 장소성, 경관성, 휴식기능 등을 확보하였다. 결과적으로 본 연구는 학교 내에서 환경조형물로만 인식되고 있는 기념동상 중심의 기념공간을 기념성이 강조된 기념공간으로 조성할 수 있는 설계안을 제시하고 있다. 뿐만 아니라 이러한 설계사례는 학교내 기념공간이 갖는 교육적 효과, 학교의 상징성, 학생들의 정체성 및 학교에 대한 자부심까지 강화할 수 있다는 점에서 매우 의미가 있다.

This is a study on the structural changes of the tumulus and causes setting up a Sabangseok at the front of the tumulus at the royal tomb in the JoSeon dynasty, during the 17th~18th centuries. The Sabangseok was first used in the tumulus of Mongnueng(穆陵) in 1630. It is a multipurpose stone for boundary, foundation of the tumulus and blocking the sliding down of the tumulus. It was set up, when constructing a Yeongneung(寧陵) in 1673. But the vast spill of tumulus soil made it improve structure of the Sabangseok. Consequently, when the Yeongneung was re-constructed, the structure of the tumulus was fundamentally improved. The soil layer on the lime of the subterranean chamber became eliminated. Also the lime of the tumulus and the lime of the subterranean chamber became a united structure. The Sabangseok was still used until 1757 on account of precedents, although it would become unnecessary after structural improvement of the tumulus in 1673. In 1757, Yeongjo(The 21th monarch of the Joseon Dynasty) commanded repeal on the use of the Sabangseok, when constructing the Hongneung(tomb of Queen Jeongseong) . The decision and discussions about abolition on the use of the Sabangseok was recorded in Gukjosangryebopyeon.

본 연구는 전주시에 위치한 3개의 산지형 근린공원을 대상으로 이용행태와 등산로의 현황을 분석하여 훼손된 등산로의 관리기법을 제시하기 위하여 수행되었다. 설문조사는 2019년 2월부터 2020년 1월에 걸쳐서 총 575명의 응답지를 회수하였다. 조사대상 3개소의 근린공원 이용자는 대부분 해당 근린공원 인근의 주민들로서 1주일에 1～2회 근린공원을 방문하고, 소요시간은 대부분 20분 이내로 나타났다. 중력모델을 적용하여 추정한 유효이용수요는 기린봉 근린공원 4,500명/일, 완산칠봉 근린공원 3,159명/일, 황방산 근린공원 2,961명/일이었다. 등산로의 총 연장은 완산칠봉 근린공원 13.41㎞, 황방산 근린공원은 10.91㎞, 기린봉 근린공원 26.06㎞였다. 등산로 밀도는 완산칠봉 근린 공원 205.84m/ha, 황방산 근린공원 50.51m/ha, 기린봉 근린공원 105.37m/ha 였다. 등산로의 훼손 지는 완산칠봉 근린공원 38개소, 황방산 근린공원 31개소, 기린봉 근린공원 133개소였다. 훼손유형은 전반적으로 노폭확장, 뿌리노출, 암반노출, 하반침식의 순으로 발생하였다. 근린공원의 유효이용 수요와 등산로의 연장 사이에는 정(+)의 상관관계가 있었으나, 유효이용수요가 등산로의 훼손에는 영향을 미치지 않은 것으로 분석되었다. 본 연구에서는 등산로의 훼손유형에 대응하여 등산로의 경계 설정, 휀스설치, 노면포장, 배수시설, 계단공사, 성토, 데크길, 누구막이, 식생공 등의 관리 및 복원방안을 제안하였다.

An experimental study was carried out to evaluate the shear performance at the interface composed of structural laminates and concrete. The main variables are the number of CLT layers and the shape of the shear connector. The number of CLT layers consisted of 3 and 5 layers. A total of 6 test specimens for shear performance evaluation were prepared in the form of a shear connector, a direct screw type and a vertically embedded type. As a result of the experiment, similar behavior was shown in all specimens, regardless of the number of layers, including direct screw type (SC series) and vertically embedded type (VE series). The behavior at the joint surface was damaged due to the occurrence of initial shear cracks, expansion of shear groove cracks, and splaying at the interface after the maximum load.After the maximum load, the shear strength decreased gradually due to the effect of the shear connector. It can be seen that the shear strength of all specimens is determined by shear and compression stress failure of concrete at the interface of the notch joint.