• The Journal of Asian Finance, Economics and Business
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• 제10권2호
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• pp.83-90
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• 2023

This study aims to determine the direct effect of positive online reviews, negative online reviews, the usefulness of online reviews, reviewers' expertise, timeliness of online reviews, the volume of online reviews, and comprehensiveness of online reviews on accommodation booking intentions and also the indirect effect of positive online reviews on the intention of booking accommodations through trust as mediation. Research respondents are users of the accommodation booking application in Yogyakarta. Hypothesis testing was carried out using SEM (Partial Least Square). Data was collected by distributing questionnaires to 135 respondents. The results of this study indicate that the Usefulness of Online Reviews, Volume of Online Reviews, and Comprehensiveness of Online Reviews have a direct positive and significant influence on the accommodation booking Intention of booking application users in Yogyakarta. The variables of Negative Online Reviews and Timeliness of Online Reviews have negative and significant influences on the accommodation booking Intention of booking application users in Yogyakarta. Positive Online Reviews and Reviewer Expertise variables are not significant in this study. At the same time, the Trust variable has a full mediation relationship in an indirect relationship between the Positive Online Reviews variables and the accommodation booking Intention of booking application users in Yogyakarta.

• 국제학술발표논문집
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• The 4th International Conference on Construction Engineering and Project Management Organized by the University of New South Wales
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• pp.99-106
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• 2011

Recent demands from construction industry have emphasized the capability for graduates to have improved skills both technical and non-technical such as problem solving, interpersonal communication. To satisfy these demands, problem-based learning that is an instructional method characterized by the use of real world problem has been adopted and has proven its effectiveness various disciplines. However, in spite of the importance of field senses and dealing with real problem, construction engineering education has generally focused on traditional lecture-oriented course. In order to improve limitations of current construction education and to satisfy recent demands from construction industry, this paper proposes a new educational approach that is Failure-Based Learning for using combination of the procedural characteristics of the problem-based learning theory in construction technology education utilizing failure information that has the educational value in the construction area by reinterpreting characteristics of construction industry and construction failure information. The major results of this study are summarized as follows. 1) Educational effect of problem-based learning methodology and limitation of application in construction area 2) The educational value of the information on construction failure and limitation in application of the information in construction sector 3) Anticipated effect from application of the failure-based learning 4) Development and application of the failure-based learning model

• Journal of Forest and Environmental Science
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• 제40권1호
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• pp.43-52
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• 2024

Cadmium (Cd) is non-essential heavy metal that negatively affects plant metabolism. Nitric oxide (NO) is an increasingly important molecule for plant metabolism that makes signaling. In this study, it was aimed to investigate the alleviating effect of sodium nitroprusside (SNP) application as NO donor in white poplar (Populus alba) under Cd stress conditions. SNP and without SNP treatments increased the Cd accumulation in root tissue. While photosynthetic pigments (Chl a, Chl b, Chl a+b, and carotenoid) content decreased by only Cd application, SNP+Cd application decreased the rate of photosynthetic pigments reduction. When the results of Cd and Cd+SNP applications were evaluated for mineral (Fe, Zn, Mn and Cu) uptake, it was found that the positive effect of SNP was heterogeneously affected. Depending on SNP application, it was found that malondialdehyde (MDA) amount decreased in leaf in 100 µM Cd applications while hydrogen peroxide (H₂O₂) amount decreased in 100 and 500 µM Cd applications. When antioxidant enzyme activities were examined, it was found that catalase (CAT) and ascorbate peroxidase (APX) enzyme activities increased with 100 µM SNP applications under all Cd applications. As a result, it was found that SNP application under Cd stress generally supports physiological processes positively in white poplar, suggesting that NO molecule plays important alleviating roles in plant metabolism.

• 한국토양비료학회지
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• 제7권2호
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• pp.113-118
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• 1974

수도(水稻)에 대한 질소질비료(窒素質肥料)의 분시효과(分施効果)와 시용시기(施用時期)에 따른 비료(肥料)의 흡수율(吸收率)과 흡수(吸收)된 비료(肥料)의 수도체내(水稻體內)에서의 분포(分布)를 조사(調査)키 위하여 정보당(町步當) 10kg의 질소질비료(窒素質肥料)를 전양기비(全量基肥)와 생육시기(生育時期)에 따라 4회(回)에 나누어서 분시(分施)한 시험결과(試驗結果)는 다음과 같다. 사용한 질소질비료(窒素質肥料)는 중질소(重窒素)로 표식(標識)된 유산암모니아를 사용(使用)한 시험결과(試驗結果)이다. 1. 질소질비료(窒素質肥料)의 분시효과(分施效果)가 컸다. 질소전량기비구(窒素全量基肥區)의 해미(亥米) 수량(收量) 3.1 ton/ha에 대하여 분시구(分施區) 3.4 ton/ha이었고 질소결제구(窒素缺制區)는 1.9ton/ha었다. 2. 수당입수(穗當粒數)와 천입중(千粒重)은 분시구(分施區)가 높았고 주당수수(株當穗數)와 등숙비(登熟比)는 전량기비구(全量基肥區)가 높았다. 3. 기비(基肥), 1차추비(追肥), 2차추비(追肥)와 3차추비(追肥)로 시용(施用)한 질소질비료(窒素質肥料)의 흡수율(吸收率)은 각각 28%, 33%, 51%와 63%였다. 4. 경엽중(莖葉中)에 함유(含有)되었던 질소(窒素)가 출수(出穗)이후 이삭 부분으로 이동(移動)되며 지엽발생기(止葉發生期)에 시비(施肥)한 질소(窒素)가 제일 많이 이삭쪽에 분포(分布)되었다.

• 한국응용곤충학회지
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• 제56권4호
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• pp.351-356
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• 2017

관주처리에 의한 벼멸구 흡즙 섭식 독성, 잎 침지처리에 의한 접촉독성과 식물체내 침투에 의한 섭식독성, 미량국소처리에 의한 표피 접촉 독성 등, 처리 방법에 따른 카보퓨란의 벼멸구에 대한 살충 작용 특성을 분석하였다. 카보퓨란 관주처리는 시간에 따른 벼멸구의 살충력 변화가 2가지 패턴으로 나타났다. 상대적으로 높은 농도(8~30 ppm)의 처리에서는 급격히 사충율이 올라가다가 시간이 지남에 따라 증가율이 낮아지는 로그곡선의 형태와 낮은 농도(1~4 ppm)의 처리에서는 사충율 증가 패턴이 S 자 모양의 곡선 형태를 보였다. 관주처리 시 높은 농도에서는 처리효과가 즉시 나타나 하루 만에 치사율이 40% 이상 도달하였으나 상대적으로 낮은 1~2 ppm의 농도에서는 처리 5일 후에야 80~100%에 달하는 사충율을 얻을 수 있었다. 침지처리는 사충율이 처리 1일 후 약효가 급격히 증가하고 이 후 증가율이 낮아졌다. 국소처리도 침지처리와 비슷한 경향을 보이나 침지처리와는 달리 처리 후 3일 이후에는 사충율이 거의 증가하지 않았다. 약효 최적 조사 시간은 관주처리에서 처리 후 2일 (42시간)이었으며 침지처리와 국소처리에서는 처리 후 1~2일이 약효 조사 적기였다.

• 디지털산업정보학회논문지
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• 제16권4호
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• pp.95-110
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• 2020

The purpose of this study is to empirically examine organizational change for a technological application of the fourth industrial revolution. The theoretical background of this study utilized organizational change management, the fourth industrial revolution, technological innovation, and voluntary acceptance. This research method used structural equations, cluster analysis, and analysis of variance. According to the results of the study, the organizational implement system, organizational leadership, and organizational operating system provided a positive effect on the voluntary technology acceptance of organization members. The voluntary technology acceptance provided a positive effect on the effectiveness of individual task innovation. However, organizational institutionalization among the independent variables did not affect voluntary acceptance. All independent variables except the organizational institutionalization had a partial mediating effect in the mediating effect verification. Meanwhile, The three groups by the cluster analysis were classified as new technology apathy, preference, and anxiety groups, and differences appeared among groups in the importance of organizational change variables. The organizational implement system in the technology apathy group and the organizational operating system in the technology anxiety group have a positive effect on voluntary technology acceptance. The technology preference group shows that a positive effect on organizational leadership and a negative effect on organizational institutionalization for voluntary technology acceptance. This study analyzed the technology application of the fourth industrial revolution in the organization based on the theory of organizational change. There has been reexamined the organizational change theory based on the new technology acceptance by the change of external environment in the fourth industrial revolution and the importance of technology innovation. As a practical implication, firms that are interested in a new technology of the fourth industrial revolution should prioritize preparing an implementation system when designing organizational changes.

• 한국정보시스템학회지:정보시스템연구
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• 제20권3호
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• pp.81-109
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• 2011

The increase in the number of smartphone users has recently been steep, which started to offer companies and individuals more opportunities to enter into a new business field. Furthermore, the smartphone applications have become one of the hottest topics inside and outside the mobile industry. Still the market is in its infancy and intention to pay of charged application of most smartphone users is relatively low. However, rate of charged application in appstore is expected to be increase steadily for some years to come. In this perspective, it is important to consider the smartphone mobile application. Research on smartphone application is still in its early stage. Thus, the purpose of this study is to find what are the effective factors on user satisfaction and intention to pay of mobile application. Based on information system success model, we proposed system quality(stability, usability, security), information quality(timeliness, accuracy, enjoyment) and service quality(reactivity, reliability, empathy) as factors to effect on user satisfaction in mobile application. The results showed that stability, usability, timeliness, accuracy, enjoyment, reactivity and empathy affected significantly user satisfaction. The relationship among satisfaction and intention to pay of mobile application was significantly supported. The implications of the findings is that firms and individual developers of mobile application should focus on customer retention through enhancing satisfaction and quality.

• Archives of Pharmacal Research
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• 제19권2호
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• pp.122-125
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• 1996

We examined the effect of topical application of Shimotsu-to, a traditional Chinese herbal prescription, on carrageenin-induced edema in rats and ultraviolet radiation-induced erythema in guinea pigs. Shimotsu-to (5% in water) markedly suppressed an acute edema of rat hindpaw induced by 1% carrageenin, and was more effective than any other single crude drug componcent of Shimotsu-to, Topical treatment with this prescription also inhibited ultraviolet erythema on the back skin of guinea pigs (a human sunbrun model). These results suggest the therapeutic effect on acute inflammation by topical application of Shimotsu-to.

• 한국정밀공학회지
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• 제21권5호
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• pp.24-31
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• 2004

Masking effect of the nanoscratched silicon (100) surface was studied and applied to a maskless nanofabrication technique. First, the surface of the silicon (100) was machined by ductile-regime nanomachining process using the scratch option of the Nanoindenter${ \circledR}$ XP. To clarify the possibility of the nanoscratched silicon surfaces for the application to wet etching mask, the etching characteristic with a KOH solution was evaluated at room temperature. After the etching process, the convex nanostructures were made due to the masking effect of the mechanically affected layer. Moreover, the height and the width of convex structures were controlled with varying normal loads during nanoscratch.

• 한국토양비료학회지
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• 제49권6호
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• pp.682-688
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• 2016

Food waste has recognized one of useful sources for potentially agricultural application to supply organic matter and nutrients in arable soil. However, there was little information on application of food waste compost related to the maturity and NaCl content in arable soil. This study evaluated the effect of food waste compost application on yield and fertility in soil under flooding and upland condition. The yields in rice and pepper cultivation decreased with increasing the rate of food waste compost application in soil (p<0.05). Maximum yields of rice ($49.0g\;plant^{-1}$) and pepper ($204g\;plant^{-1}$) were shown at 10 and $30Mg\;ha^{-1}$ of food waste compost application, respectively. The N, P, and K contents in grain and plant residues increased by the application of food waste compost, there was no difference on Na/K ratio in plant tissue among the treatments. Application of food waste compost resulted in the increase of pH, EC, TC, available P contents in soil after crop harvest, especially, which was shown the increase of the CEC and exchangeable sodium percentage (ESP) contents in irrespective of water condition. In conclusion, application of food waste compost in soil was effective on the supply of the organic matter and nutrient. However, it might need caution to apply food waste compost for sustainable productivity in arable soil because of potential Na accumulation.