해상풍력발전기 설치선의 동적응답을 분석하기 위하여, 불규칙 파 정보를 고려한 시간영역 기반 비선형동적해석이 필요하다. 고전적인 단자유도 시스템은 가장 기본적으로 동적효과를 계산하는 방법이지만, 실제의 무게 중심 불일치, 비정규적인 파도 하중 그리고 항력의 비선형을 고려하지 못하는 제약조건들을 갖고 있다. 그리하여 불규칙 파를 고려한 다중 자유도 모델이 유사한 문제에 해답을 찾는데 폭넓게 사용되고 있다. 불규칙 시간영역 해석은 정확한 계산 결과를 제공하지만, 수렴 데이터의 수렴도가 민감하여 복잡하다. 이러한 제약점들을 극복하기 위하여 본 논문은 시간영역 해석 결과를 통하여 수정된 동적증폭계수를 개발하였으며, 기존보다 복잡성이 개선되면서 계산 시간을 획기적으로 단축하였다. 다양한 변수를 기준으로 한 시간영역 해석을 통하여 새롭게 개발된 동적증 폭계수는 단자유도 방법보다 더 높은 정도를 갖고 있으며, 예측이 가능하다.

This study attempted to investigate the factors affecting the organizational citizenship behavior (OCB) of English teachers in Turkish state high schools within the framework of job satisfaction, emotional commitment, and demographic factors. The data, which were collected through a questionnaire given to 269 English teachers, were analyzed through descriptive statistics and hierarchical regression. The findings indicated that the English teachers’ job satisfaction, emotional commitment, and OCB levels were above average. Moreover, job satisfaction and emotional commitment predicted OCB. No significant relationship was observed between demographic factors and OCB. The results showed a positive correlation between demographic factors and job satisfaction, and between demographic factors and emotional commitment. The findings suggest that OCB can play a pivotal role to increase the performance of English teachers, consequently leading to better language education. The study suggests that the non-methodological factors in English language teachers’ behaviors and performance need to be studied to increase their performance.

본 연구에서는 다공성 활성탄소와 금속유기골격체 복합재료 기반의 전극 재료와 “이온젤” 이라고 불리는 고분자 고체 전해질을 이용하여 슈퍼커패시터를 제작 하였으며, 금속유기골격체의 함량에 따른 전기화학적 거동을 관찰하여 보았다. 슈퍼커패시터의 전기화학적 특성은 순환전압전류법(CV), 전기화학적 임피던스 분광법(EIS) 및 전정류 충·방전법(GCD)으로 분석하였으며, 그 결과로, 다공성 활성탄소 대비 금속유기골격체를 0.5 wt% 첨가 하였을 때 가장 높은 전기용량값을 확인 할 수 있었으며, 0.5 wt% 이상의 금속유기골격체의 함유량은 전기화학적 특성 감소에 영향을 주는 것으로 사료되며, 이러한 결과를 바탕으로 제조된 다공성 활성탄소/금속유기골격체 복합재료 기반의 슈퍼커패시터는 다양한 분야에 활용이 가능 할 것으로 판단된다.

This research tests the roles of vertical versus horizontal collectivism in affecting the relationships between place attachment, perceived environmental responsibility and pro-environmental behaviour. In doing so, the research addresses the boundary conditions for the attachment-behaviour link and provides guidance for implementing environmental policies using place attachment as the policy tool.

Social marketing, a behaviour change discipline that originated in marketing, has contributed to a better world delivering positive health, environmental and social outcomes over the past 60 years. While successes are documented, failures are also evident, and delivery of cost-efficient, feasible, and maintainable programs has been called for. While the benefits of applying social marketing benchmark criteria (BC) are verified, roadmaps for how to apply BC in behaviour change program design are not apparent. This paper marks a first attempt at applying BC to co-create a social marketing program. A conceptual model that applies eight BC across four studies; 1) Systematic quantitative literature review, 2) Segmentation study, 3) Expert panel reviews, and 4) Co-design workshops is proposed. This paper offers a reseacrh process that researchers and/or practitioners can apply to develop behaviour change programs with the aim of achieving enhanced program outcomes. Moving forward the proposed model will need to be tested and replicated in field to verify the effectiveness of applying eight BC within the program design process.

Thermal decomposition of the uranyl phosphate mineral phase meta-ankoleite (KUO2PO4·3H2O) has been considered in relation to high temperature thermal sintering for the immobilisation of a uranyl phosphate containing waste. Meta-ankoleite thermal decomposition was studied across the temperature range 25 – 1200℃ under an inert N2 atmosphere at 1 atm. It is shown that the meta-ankoleite mineral phase undergoes a double de-hydration event at 56.90 and 125.85℃. Subsequently, synthetically produced pure meta-ankoleite remains stable until at least 1150℃ exhibiting no apparent phase changes. In contrast, when present in a mixed waste the meta-ankoleite phase is not identifiable after thermal treatment indicating incorporation within the bulk waste either as an amorphous phase and/or as uranium oxide. Visual inspection of the waste post thermal treatment showed evidence of self-sintering owing to the presence of glass former materials, namely, silica (SiO2) and antimony(V) oxide (Sb2O5). Therefore, incorporation of the uranium phase into the waste as part of waste sentencing and immobilisation via high temperature sintering for the purpose of long-term disposal is deemed feasible.

We analyzed the cutting mechanism of laver harvesting machine in the sea area near Gooam Port in Goheung, Jeollanam-do, and investigated the change and efficiency of laver collecting operation in the working ship. The laver working ship slides uniformly from the bow to the upper part of the laver collecting machine on the deck and cuts the wet laver attached to the bottom of the net at the blade of the havesting machine. The laver farming net, which was loaded with laver turrets on the deck by gravity and collected primitives, consisted of a ship structure that led to the stern side and into the sea. The working ship operation is in harvesting process while driving in a S-shape that is separated by one space to efficiently collect the laver net. During laver working ship operation, the speed was 0.51 m/s in the access stage, 0.56 m/s in the havesting stage, and 0.52 m/s in the exit stage. Considering the cutting edge life and production efficiency of the laver harvesting machine, it is appropriate to harvest 1.15 to 1.26 kg/rpm by operating at a rotational speed of about 700 to 800 rpm rather than forcibly harvesting the product at high speed. On the deck of the working ship, 959.7 kg of starboard and 1048.7 kg of center were 964.7 kg of port side. Based on the starboard, 9.3% of the central part and 0.5% of the port side appeared. The reason for this was due to the difference in harvest time according to the turning direction of the working ship.

Small fishing vessels are manufactured using FRP. Various studies have been conducted to increase the strength of the composite material by mixing alumina powder with resin. Tensile tests and flexural strength tests are conducted to examine the effect of alumina powder on the strength of GFRP. In the current study, resin/alumina composites at different alumina contents (i.e., 0, 1, 5, and 10 vol%) have been prepared. The physical and mechanical properties of the prepared composites have been investigated. From the results, the tensile strength of the specimen with alumina powder mixed in at 10% shows the highest value of 155.66 MPa. The tensile strength of the specimen mixed with alumina powder increases with the amount of alumina powder impregnated. In the flexural strength test, the flexural strength of neat resin without alumina powder has a highest value of 257.7 MPa. The flexural modulus of ALMix-5 has a highest value of 12.06 GPa. Barcol hardness of ALMix- 10 has a highest value of 51. We show that alumina powder leads to decreasing cracks on the surface and decreasing length area of delamination.

This study was designed to investigate the effect of parity and lactation stage of sows on the behavior of nursing sows and their suckling piglets. In total 18 Yorkshire × Landrace F1 sows (range of parity: 1 to 6) and their litters (range of litter size: 10 to 14 piglets) were assigned according to the sow's parity (1-2, 3-4 and 5-6) and lactation stage (early, middle, and late). The sows were housed in farrowing crates (0.8 × 2.1 m) located in pens (2.1 × 1.75 m) with totally perforated flooring. The behaviors of the sows and their piglets were recorded over a 72-h period for each parity and lactation stage. The sows and piglets were conventionally managed. All nursing sows in both group showed lying behavior for more than 80% of the experimental period, regardless of parity and lactation stage. The behavioral frequency of sows was, in descending order, as follows: lateral lying, ventral lying, eating, standing, and sitting. The parity of sows did not affect their behavior, but the lactation stage did. Ventral lying showed decreased frequency in late stage compare to that in the early or middle stage. The lying, standing, sitting, and eating behavior of sows were not affected by their parity. Sow parity did not affect the behavior of suckling piglets, but the lactation stage did. The behavioral frequency of piglets for the whole lactation period was, in descending order, as follows: lying, suckling, and walking. The lying frequency of piglets was higher in the sow's middle lactation stage than in the early or late lactation stage. It is concluded that the sow parity did not affect the behavior of nursing sows and suckling piglets, but the lactation stage did.

Destination Marketing Organisations (DMOs) are facing the dilemma: on one hand, communicating branding messages effectively to target markets all over the world requires abundant resources, while stakeholders within the destination have different (sometimes even conflicting) interests in destination branding on the other. Specifically, residents of a tourism destination have great potential in helping the place by being involved in tourism development and destination branding, due to the development of information technology. To investigate how self-congruity influences residents’ evaluation on the place, as well as their voluntary WOM behaviours, this article proposes self-congruity as a key construct affecting residents’ place satisfaction and expectation, and further influencing residents’ place related behaviours, such as word-of-mouth (WOM). An empirical study was conducted in Ljubljana, Slovenia, with 309 questionnaire collected. Via a structural equation modelling analysis, this study finds that variation of self-congruity in the impacts on place satisfaction and expectation, as well as two types of WOM behaviours, namely one-to-one WOM and one-to-many WOM. This provides evidence to support the standpoint that different WOM are motivated by different factors via different psychological mechanisms. Specifically, (1) actual self-congruity and place satisfaction (reflecting an evaluation of past of current performance of the place) only affect one-to-one WOM, suggesting that this type of WOM is mainly motivated by one’s current state; (2) ideal self-congruity was found to affect place expectation, suggesting a consistency in the expectation of one’s self image and the place; (3) one-to-many WOM has two indicators of ideal self-congruity and place expectation, implying publishing one’s opinions and thoughts is driven by expectation rather than current state. In general, the results add detailed and in-depth findings on distinguishing the motivations of different types of WOM in WOM literature.

Destination Marketing Organisations (DMOs) are facing the dilemma: on one hand, communicating branding messages effectively to target markets all over the world requires abundant resources, while stakeholders within the destination have different (sometimes even conflicting) interests in destination branding on the other. Specifically, residents of a tourism destination have great potential in helping the place by being involved in tourism development and destination branding, due to the development of information technology. To investigate how self-congruity influences residents’ evaluation on the place, as well as their voluntary WOM behaviours, this article proposes self-congruity as a key construct affecting residents’ place satisfaction and expectation, and further influencing residents’ place related behaviours, such as word-of-mouth (WOM). An empirical study was conducted in Ljubljana, Slovenia, with 309 questionnaire collected. Via a structural equation modelling analysis, this study finds that variation of self-congruity in the impacts on place satisfaction and expectation, as well as two types of WOM behaviours, namely one-to-one WOM and one-to-many WOM. This provides evidence to support the standpoint that different WOM are motivated by different factors via different psychological mechanisms. Specifically, (1) actual selfcongruity and place satisfaction (reflecting an evaluation of past of current performance of the place) only affect one-to-one WOM, suggesting that this type of WOM is mainly motivated by one’s current state; (2) ideal self-congruity was found to affect place expectation, suggesting a consistency in the expectation of one’s self image and the place; (3) one-to-many WOM has two indicators of ideal self-congruity and place expectation, implying publishing one’s opinions and thoughts is driven by expectation rather than current state. In general, the results add detailed and in-depth findings on distinguishing the motivations of different types of WOM in WOM literature.

Environmental issues, especially water and air pollution, are harmful results from an overconsumption of fossil fuels as well as various industrial sewage water discharge. Nowadays, environment friendly purchasing behaviour of consumers has been regarded as an effective method for alleviating environmental problems. Due to concerns about the natural environment, consumers show favourable attitude towards environment friendly products, and as a result, are more likely to purchase green products. However, consumers’ green purchasing behaviour varies across nations and cultures. This study aims to reveal how the endorsement of cultural values influences the green purchasing behaviour of Chinese consumers. As consumers’ lifestyle is deeply rooted in culture values, this study examines the mediating effects of four different dimensions of lifestyle. Meanwhile, environmental knowledge is considered as a moderating variable in order to investigate the relationship between cultural values and green purchasing intention. Data is collected from Chinese consumers. Empirical results reveal that the Chinese cultural values (specifically, the Doctrine of the Mean) is positively associated with green purchasing intention, while leadership and development consciousness play mediating roles. The moderating effects of environmental knowledge are found in the influence of leadership as well as development consciousness on green purchasing intention. The findings of this study have academic contributions and practical implications. Manufacturers and retailers can effectively adapt marketing strategies to cultural peculiarities to increase profitability and competitiveness.

Domestic continuously reinforced concrete pavement has been built on a large scale on the Jungbu Expressway, which opened in 1987. Since then, there have been few application due to cost and construction difficulty. Currently, most of the expressway concrete pavements have been applied with jointed plain concrete pavement, but the interest in continuously reinforced concrete pavement has been increasing recently due to frequent premature failure in joints of JPCP. Accordingly, Korea Expressway Corporation has established design guidelines and details for continuously reinforced concrete pavements for expressway in 2014, based on the design method applied to the Jungbu Expressway, but incorporating foreign useful design methods. In terms of construction, pilot constructions were performed on Pyeongtaek~Jecheon Expressway Construction. The new design guidelines were applied to some sections of the Sangju~Yeongdeok Expressway Construction Project in 2016. This study conducted a survey and analysis of transverse cracks for one year after continuously reinforced concrete pavement construction in Sangju~Yeongdeok Expressway. This route was constructed with pavement thickness, base layer and longitudinal reinforcement according to domestic design guidelines. However, the transverse reinforcement was arranged differently according to the section. After construction, the transverse crack spacing was surveyed and the crack gauges were installed at the crack position to measure the movement. This compares the crack spacing according to the characteristics of longitudinal reinforcement and observes continuous movement of the crack width. The results showed that the crack spacing was more affected by the climate at the time of construction than the arrangement method of the transverse reinforcement. The crack width showed periodic changes according to the temperature change over 24 hours. However, due to seasonal changes, it showed a tendency of gradual increasing or decreasing in crack widths, and it was predicted that different measurement results will be shown depending on the time of crack width measurement. Generally, it is predicted that the crack spacing will be narrowed and the crack movement will tend to converge with the period after construction. This initial crack movement data is expected to be useful for comparing whether these predictions are valid.

곡률을 갖고 있는 쉘 부재들은 선박 및 육상구조 내에서 캠버와 선수, 선미, 파이프 및 저장용 탱크에 주로 사용되고 있다. 이러한 곡률 쉘 부재들은 기본적으로 원통형 실린더 부재의 일부라고 간주할 수 있다. 일반적으로 곡률의 존재는 압축하중 작용 시 좌굴강 도 및 최종강도를 증가시키는 것으로 알려져 있다. 본 논문에서는 이러한 영향을 확인하기 위하여 탄성대변형 시리즈해석을 수행하였으며, 매개변수의 영향을 분석하였다. 실린더의 최종강도 거동은 초기처짐과 해석모델링 방법에 큰 영향을 받는 것을 확인하였다.