오늘날 조직은 빠르게 변화하는 외부 환경에 적극적으로 대응하고자 조직과 업무에 적극적인 태도를 가지고 직무열의가 높은 조직구성원을 필요로 한다. 조직구성원의 직무열의를 효과적으로 이끌어내기 위 해서는 조직구성원에게 구체적인 목표와 지속적 관심을 제공하는 상사의 변혁적 리더십 구현이 필요하 며, 외부적인 리더십이 조직구성원의 직무열의로 이어지기 위한 조직구성원의 내적 동기부여 과정이 필요하다. 이에 본 연구는 공공기관 구성원을 대상으로 리더의 변혁적 리더십이 구성원의 내적동기를 매개로 직무열의에 미치는 영향을 연구하고자 하였으며, 이를 위해 A공공기관 조직구성원을 대상으로 설문자료를 배포하여 이중 회수된 287부를 통계 분석한 결과 다음과 같다. 첫째, 변혁적 리더십은 내적 동기, 직무열의에 유의미한 정(+)의 영향을 미치는 것으로 나타났다. 둘째, 내적 동기는 직무열의에 유의미한 정(+)의 영향을 미치는 것으로 나타났다. 셋째, 내적 동기는 변혁적 리더십과 직무열의를 부분 매개하는 것으로 분석되었다. 이와 같은 연구결과를 통하여 내적 동기는 변혁적 리더십과 직무열의의 관계에서 중요한 영향을 미치고 있음이 밝혀졌다. 따라서 조직구성원의 직무열의 향상을 위하여 조직에서는 상급자에게 변혁적 리더십의 구현을 위한 교육 활동을 제공할 뿐만 아니라 조직구성원의 내적 동기를 고양할 수 있는 직무환경을 제공할 필요성이 있다.

This study was conducted to develop a technique for the stable production of Italian ryegrass(IRG) seeds in reclamation sites. Harvesting 35 days after heading in Autumn resulted in the highest production, an average of 2,232kg/ha. The production yield decreased due to seed loss as harvesting was delayed to 45 and 55 days post-heading. For the harvested 35 days post-heading, under growing rice sowing resulted in 80% seed yield of after rice sowing's; spring sowing resulted in 40%. After rice sowing using the domestic IRG seeds of 30kg/ha produced the highest seed yield of 2,507kg/ha. The highest straw yield has resulted when using the imported IRG seeds of 20kg/ha for after rice sowing 35 days post-heading fresh weight 36,667kg/ha, dry weight 14,500kg/ha, and TDN weight 7,895kg/ha.

구조와 사육환경이 동일한 3개의 돈방(room A~C)에서 48일 동안 비육돈의 암모니아 농도 및 환기량을 모니터링하여 배출계수를 산정하였다. 실험 결과, 온도 22.5℃, 습도 53.9% 환경에서 평균 암모니아 순발생 농도 5.93 ppm, 환기량 23.7 m3/h·pig로 나타났다. 일별 상관관계 분석결과, 암모니아 농도는 온도와 음의 상관관계(R2: -0.65 ~ -0.53)를 가지는 것으로 나타났으며, 환기량은 암모니아 농도에 거의 영향을 미치지 않는 것으로 나타났다. 암모니아 농도는 이른 오전을 기점으로 서서히 증가 경향을 보이다가 12~13시경 최댓값에 도달하였고, 상호 상관도가 높은 온도, 습도, 환기량의 경우 14~15시에 최댓값을 갖는 것으로 분석되었다. 시간별 데이터 상관관계 분석결과, 암모니아 배출량에 영향을 미치는 요소는 암모니아 농도(R2=0.71)와 환기량(R2=0.61)으로 이 중, 암모니아 농도가 더 상관성이 높은 것으로 분석되었다. 암모니아 배출계수는 2.28 g/d·pig로 분석되었다.

PURPOSES : This study is a method for developing a 3D stratum modeling that uses Civil3D, CAD, Revit, and Dynamo, the products of Autodesk and ground survey data to prevent reversal and applying BIM design to underground structures. METHODS : If the ground level difference is severe and the survey data is not sufficiently spaced, a reversal phenomenon occurs such that the stratum is generated above the surface ground. In such cases, the first layer of the stratum can be offset from the ground surface and the remaining layers are created and utilized by the stratum thickness. However, the first layer is just offset from the ground surface, which is not an accurate implementation of geological information. To fix this error, we propose a method to calculate the quantity in 3D based on the algorithm that generates the stratum underneath the original ground surface connected with borehole data. RESULTS : The 3D stratum is designed to be implemented within 30 min with minimum memory resource occupancy. The ground surface is generally based on a digital map and can be linked with a drone and 3D scan data afterwards. The stratum model for each layer can be implemented in both a triangulated irregular network (TIN) and solid for quantity and volume calculations. Each layer will be generated in selected colors, and analysis on altitude, gradients, etc. can be performed with it. CONCLUSIONS : Constructing 3D spatial information using 2D information is expected to lay the foundation for providing required services in construction, real estate, architecture, urban planning, and transportation in the future, to users with integration and convergence into various fields such as BIM, smart city, digital twin, and VR-AR.

본 연구는 2015년 개정 교육과정에 따라 집필된 고등학교 경제 교과서의 구성이 교육 과정에 부합한지를 분석하기 위한 것이다. 이를 위해 교육과정에서 경제 영역의 내용 요소와 성취 기준을 살펴본 후 이를 교과서별로 중단원의 구성 측면에서 어떤 차이와 특징을 보이는지를 분석하였다. 이들 고등학교 경제 교과서의 대단원은 고등학교 경제 교육과정의 5개 영역을 그대로 반영하고 있어 경제 교육과정에 부합하는 것으로 나타 났다. 반면 중단원과 소단원의 구성은 교과서별로 차이를 보이고 있었다. 교육과정에서 탄력성을 삭제했는데도 모든 교과서가 탄력성을 다루고 있는 것은 2015 개정교육과정 과 교과서의 괴리를 보여준다. 국내 총생산 또는 국민 총소득에 대해서는 교육과정에 명목 변수와 실질 변수에 대한 부분이 명시되지 않아 교과서별로 해당 개념을 다루는 데 차이를 보였다. 이자율에 대한 내용 요소도 교육 과정에서 명시되지 않아 실질 이자 율을 설명하는 데도 교과서별로 차이를 보였다. 이는 경제 교육과정의 개정을 개정하는 과정에서 한국경제학회, 한국경제교육학회 등 전문가 집단의 공식적인 검토가 필요하 다는 것을 시사한다.

The purpose of this study is to construct an outlook model that is consistent with the “Fisheries Outlook” monthly published by the Fisheries Outlook Center of the Korea Maritime Institute(KMI). In particular, it was designed as a partial equilibrium model limited to abalone items, but a model was constructed with a dynamic ecological equation model(DEEM) system taking into account biological breeding and shipping time. The results of this study are significant in that they can be used as basic data for model development of various items in the future. In this study, due to the limitation of monthly data, the market equilibrium price was calculated by using the recursive model construction method to be calculated directly as an inverse demand. A model was built in the form of a structural equation model that can explain economic causality rather than a conventional time series analysis model. The research results and implications are as follows. As a result of the estimation of the amount of young seashells planting, it was estimated that the coefficient of the amount of young seashells planting from the previous year was estimated to be 0.82 so that there was no significant difference in the amount of young seashells planting this year and last year. It is also meant to be nurtured for a long time after aquaculture license and limited aquaculture area(edge style) and implantation. The economic factor, the coefficient of price from last year was estimated at 0.47. In the case of breeding quantity, it was estimated that the longer the breeding period, the larger the coefficient of breeding quantity in the previous period. It was analyzed that the impact of shipments on the breeding volume increased. In the case of shipments, the coefficient of production price was estimated unelastically. As the period of rearing increased, the estimation coefficient decreased. Such result indicates that the expected price, which is an economic factor variable and that had less influence on the intention to shipments. In addition, the elasticity of the breeding quantity was estimated more unelastically as the breeding period increased. This is also correlated with the relative coefficient size of the expected price. The abalone supply and demand forecast model developed in this study is significant in that it reduces the prediction error than the existing model using the ecological equation modeling system and the economic causal model. However, there are limitations in establishing a system of simultaneous equations that can be linked to production and consumption between industries and items. This is left as a future research project.

본 연구는 대구광역시 중구에 위치한 김광석길 이용자들을 대상으로 이용행태, 가로 구성요소 인식 및 만족도를 분석하여 김광석길 활성화를 위한 실질적인 방안을 제안하고자 하였다. 김광석길에 대한 현장조사 및 설문조사를 실시하였으며 이를 토대로 김광석길에 대한 만족도 결정요인을 분석하였다. 우선, 이용자들의 이용행태를 분석하면, 이용자의 과반수 이상이 거리풍경을 감상하기 위하여 김광석길을 방문하였고 주말 오후 이용비율이 가장 높았으며, 한 시간에서 두 시간 정도 머무르는 것으로 나타났다. 가로 구성요소 인식 분석결과, ‘고유한 특성’, ‘추억과 낭만’, ‘벽화 및 조형물’ 등에 대한 인식이 높게 분석된 반면, ‘주차공간’과 ‘음식 및 상품 비용’에 대한 인식은 낮게 평가되었다. 김광석길의 이용 만족도에 대한 결정요인을 분석한 결과, ‘스토리 적합성’, ‘경관 조화성’, ‘시설 적합성’, ‘소비 다양성’, ‘문화 예술성’ 인식요인이 통계적으로 유의한 영향을 주는 것으로 분석되었다. 특히 ‘스토리 적합성’ 인식요인의 표준화계수가 가장 높게 나타나 김광석길 만족도에 가장 큰 영향을 주는 인식요인으로 평가되었다. 이러한 결과는 향후 김광석길 활성화를 위한 환경 개선뿐만 아니라 이와 유사한 특색있는 가로 계획 및 유지관리에 필요한 기초자료로 활용될 것으로 판단된다.

오늘날 우리 사회는 출산율 감소와 기대 수명의 증가로 노인 인구가 급격히 증가하고 있다. 2000년에 우리나라 65세 이상 노인 인구가 전체 인구의 7.2%로 고령화사회에 진입한지 불과 17년 만에 고령사회가 되면서 전 세계에서 가장 빠른 속도로 인구 고령화가 진행되고있다. 특히 노인성 질환으로 경도인지장애는 치매의 전 단계로 일상생활은 가능하지만 인지기능이 저하되어 있는 상태이며, 불치병이라 알려진 치매증상이 예방 가능한 상태이다. 최근 발표된 자료에 의하면 경도인지장애 진료 인원이 2010년 2만 4천명에서 2014년 10만 5천 명으로 4.3배나 증가하였고, 앞으로는 경도인지장애 환자의 비중이 전체 치매 환자 규모의 1/4를 넘어설 것으로 예측되고 있다. 경도인지장애 노인의 치료에 있어 약물치료만 사용하기보다 비약물 치료를 병합한 복합적인 치료가 더 효과적이어서 경도인지장애의 비약물 치료에 대한 관심이 증가하고 있다. 비약물치료에는 예술치료인 미술치료, 원예치료, 놀이치료, 음악치료, 동물매개치료, 작업치료, 인지치료, 현실치료 등을 이용한 프로그램이 제공되고 있다. 이에 본 연구에서는 비약물치료이자 다양한 매체를 활용할 수 있는 예술치료를 통해 경도인지 장애 노인의 인지기능에 미치는 영향에 관한 연구를 하고자 한다. 본 연구의 변인과 관련된 이론적 개념과 선행연구들의 문헌 고찰을 통하였다. 경도인지장애 노인의 인지기능에 긍정적인 변화를 위해 선행연구 미술치료, 작업치료, 통합예술치료, 동물매개치료들의 연구내용과 결과를 정리, 분석하였다. 연구결과로는 예술치료가 경도인지장애 노인의 인지기능에 대해서 전체적인 효과와 인지기능의 하위요인에 대한 부분적인 긍정적인 효과를 볼 수 있었다.

In this paper, we investigated the effect of the passivation stack with Al2O3, hydrogenated silicon nitride (SiNx:H) stack and Al2O3, silicon oxynitride (SiONx) stack in the n type bifacial solar cell on monocrystalline silicon. SiNx:H and SiONx films were deposited by plasma enhanced chemical vapor deposition on the Al2O3 thin film deposited by thermal atomic layer deposition. We focus on passivation properties of the two stack structure after laser ablation process in order to improve bifaciality of the cell. Our results showed SiNx:H with Al2O3 stack is 10 mV higher in implied open circuit voltage and 60 μs higher in minority carrier lifetime than SiONx with Al2O3 stack at Ni silicide formation temperature for 1.8% open area ratio. This can be explained by hydrogen passivation at the Al2O3/Si interface and Al2O3 layer of laser damaged area during annealing.

In order to offer specific information needed to assist in operation of a ship with same type rudder through evaluating the maneuverability of training ship A-Ra with flapped rudder, sea trials based full scale for turning test, zig-zag test with rudder angle 10° and 20°, and spiral test at service condition were carried out on starboard and port sides around Jeju Island according to the standards of maneuverability of IMO. As a result, the angular velocity of port turn was higher than that of starboard turn. Therefore, the size of turning circle was longer on the starboard side. In addition, variation of the transfer due to various factors was more stable than those of the others. In the Z-test results, the mean of 1st and 2nd overshoot angles were 9.8°, 6.3° and 15.3°, 9.2° respectively when the port and starboard was 10°; the 1st overshoot angle were 18°, 13.7° when using 20°. Her maneuverability index Tˊ and Kˊ can be easily determined by using a computer with the data obtained from Z-test where Kˊ and Tˊ are dimensionless constants representing turning ability and responsiveness to the helm, respectively. In the Z-test under flap rudder angle 10°, the obtained Kˊ value covered the range of 2.37-2.87 and Tˊ was 1.74-3.45. Under the flap rudder angle 20°, Kˊ and Tˊ value showed 1.43-1.63, 1.0-1.73, respectively. In the spiral test, the loop width was unstable at +0.3° and –0.5°-0.9° around the midship of flap rudder. As a result, course stability was comparatively good. From the sea trial results, training ship ARA met the present criterion in the standards of maneuverability of IMO.

In this study, a controlled atmosphere (CA) storage system is proposed as a storage method for prolonging processing period. Persimmon was placed in CA storage at 0.5oC±0.5 for 92 d. The qualities of the stored persimmons were compared to determine the possibility of extending shelf life. ‘Sangjudungsi,’ which was harvested on October 26, 2017, was applied to the persimmons. In order to compare differences according to size, the persimmons were classified into Size No. 2 (170 g) and Size No. 3 (145 g). In the result, the yellowness of CA-stored persimmons was 26.3% lower than that of cold-stored ones, confirming that after-ripening was delayed. The firmness of CAstored and Size No. 3 persimmon was higher than that of cold-stored and Size No. 2 persimmon. Tannin decreased significantly in cold storage, but it tended to increase in CA storage. The sugar content of Size No. 3 was lower than that of Size No. 2, but there was no difference in tendencies according to the storage method. Weight loss in CA storage was lower than that in cold storage. A comparison of color difference, firmness, sugar content, tannin, and weight loss ratio showed that CA storage was more effective in improving shelf life than cold storage.

This study collected and analyzed the fishing process of existing fishing boat and newly built fishing boat by using the video observation methods to understand the improvement of fishing operation efficiency and safety according to the scale change of coastal composite fishing boat. The fishing operation efficiency was calculated by analyzing the frequency of movement, the movement distance and the moving time per basket used in the fishing process to derive the improvement of the newly built fishing boat compared to the existing fishing boat. It was confirmed that the mean frequency of movements decreased to 13.9%, the average moving time decreased to 21.8%, the mean movement distance increased to 20.5% and the movement through the top of gunwale did not occur. Movement of frequency, increased and time according to the fishing operation were directly affected by the width of side passages and the presence or absence of walking obstruction such as bulwark stay, hatch coaming and fishing gears on deck. The results of this study are expected to be used as basic data for redesigning into a safe and efficient coastal composite fishing boat in the future.

In fisheries, the importance of designing efficient fish cages is being emphasized as aquaculture has become more production than capture fishing. Particularly, the gravity cage system is one of the popular fish cage system in Korea. Currently, gravity cages of various shapes and sizes are being widely designed and installed in offshore and inland seas. The cage is subject to external forces, such as currents and waves, and the shape of the structure and tension on the ropes changes according to these external forces. Thus, it is important to accurately calculate these dynamic behavior, including the external forces and tension on the structure during the design stage. In this study, three types of cage systems with an equal internal volume of 8000 m3 were analyzed using mass-spring models and their behavior was interpreted through simulations. These simulations were used to analyze the behavior and tension of the ropes in response to currents and waves to aid in the selection of individual cage sizes for a given total volume. The numerical calculation results indicate that depending on the flow rate, the most resistant system is System 1, which has eight strays, and System 2 and System 3 have 69.4% and 54.8% of the resistance of System 1. Further, total resistance increased as the number of cages increased for all flow rates.