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        검색결과 638

        165.
        2018.10 구독 인증기관·개인회원 무료
        농경지에서 해충억제 등의 유익한 역할을 하는 거미와 딱정벌레 군집에 대해 논의 휴경이 미치는 영향을 구명하고자 하였다. 2018년 3월 비경작기에 전라북도 정읍 소재의 휴경지와 인근 논에서 pit-fall trap 방법으로 지표서식성 거미와 딱정벌레를 채집하여 조사하였다. 휴경지와 논에서 관찰된 거미의 총 종수는 각각 25종 및 21종이었고, 평균 종수는 6.6 및 5.4 종으로 차이가 없었다. 하지만 군집구성에서는 차이가 있었으며, 휴경지에서는 광릉논늑대거미(Arctosa kwangreungensis)가17.1% 논에서는 별늑대거미(Pardosa astrigera)가 42.5%로 우점하였다. 딱정벌레의 총종수는 휴경지와 경작논에서 23종으로 같았으며, 평균 종수도 4.1종 및 4.5종으로 비슷하였다. 휴경지에서는 가는청동머리먼지벌레(Harpalus chalcentus)가 11.1%이었고, 논에서는 남방폭탄먼지벌레(Pheropsophus javanus)가 9.0%로 우점하였다. 거미와 딱정벌레의 개체수는 두 유형에서 모두 차이가 없었다. 이러한 결과는 논의 휴경에 의해 지표서식성 딱정벌레와 거미의 밀도보다는 종구성이 크게 달라진다는 것을 보여준다.
        166.
        2018.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The identification of biomarkers of a living tissues is essentially required to understand specific functions of the cells. In previous study, we reported IGFBP 3 as one of the putative biomarkers, by showing specific expression at porcine spermatogonial stem cells (SSCs) of early stage of porcine testis. In this study, we analyzed the expression of seven members of IGFBP family (IGFBPs) in SSCs and histological expression pattern of pregnancy-associated plasma protein-A (PAPP-A), which plays a role on the growth promoting enzyme by cleavage of IGFBPs in testis of 5 days old pig. RT-PCR analysis showed that IGFBP 1, 2, 3, 4, and 6 were expressed at high level specifically in porcine SSCs compared with whole testis. We performed immunohisotochemical staining of testis sections with PAPP-A and protein gene product 9.5 (PGP9.5) which are the known biomarkers for SSCs. We were not able to find co-expression of PAPP-A and PGP9.5; PAPP-A was expressed only in Sertoli cells and PGP9.5 expression was confirmed in spermatogonium. Additionally, we were able to confirm the GATA4 expression in Sertoli and Leydig cells as a regulator of Sertoli cell function was not detected PGP9.5 expressing cells, indicating indirect evidence of that cytolocalization of PAPP-A expression is limited in Sertoli cells. These results suggested that the PAPP-A expressed in Sertoli cells may play role on regulation of development and differentiation of testicular cells through the IGF axis in neonatal porcine testis.
        4,000원
        167.
        2018.07 구독 인증기관·개인회원 무료
        Individuals consume products and services as a means of symbolic self-expression in private and public contexts (Ahuvia, 2005; Belk, 1988; Harmon-Kizer et al., 2013). The body should be seen as the continuation of the individual, as the self is exhibited to others via its embodiment (Borelli and Casotti, 2012). Thus, the body functions as object that can serve self-expressive purposes and consumption behaviors (Schouten, 1991). Meanwhile, cosmetic surgery is described as a “fashion object” (Venkatesh et al., 2010, p. 468) and a form of extreme symbolic consumption that uses the body as an object to express the self (Schouten, 1991). Research indicates that individuals use of cosmetic surgery as a means of self-identity reconstruction (Askegard et al., 2002) and that motivational antecedents such as sociocultural influences, competition with others, media influence, body appreciation, and a materialist orientation are drivers of cosmetic surgery (Henderson-King and Brooks, 2009; Markley-Roundtree and Davis, 2011; Swami et al., 2009). Contrary to prior evidence, we argue that besides being a consequence, cosmetic surgery acts also as an antecedent that influences materialist consumption practices through changes to a consumers’ self. Surprisingly, despite the growing number of cosmetic surgery procedures around the globe and the self as a key driver of consumer behavior, no study to date has explored how cosmetic surgery acts as an antecedent of materialistic consumption practices through potential alterations of an individual’s self. We carried out semi-structured in-depth interviews with 10 South Korean participants. Our participants were 22 to 57 years old, representing a range of income and professional roles. They had previously undergone plastic surgery procedures such as double eyelid surgery, breast enhancementt and nose surgery. First, our findings suggest that materialism is not just an antecedent of cosmetic surgery propensity (Henderson-King and Brooks, 2009), but also that cosmetic surgery influences materialist consumption practices (e.g. cosmetics, beach vacations) through changes to the self. Second, our findings indicate that individuals need to control influences how cosmetic surgery shapes the self. Specifically, consumers seek cosmetic surgery to bridge the discrepancy between the physical self (provided by nature) and their “sought” psychological self. Third, our findings illustrate the role of marketplace cultures and, in particular, socio-cultural driven factors that interact with the self in a cosmetic surgery context (Arnoud and Thompson, 2005). Fourth, our findings show that cosmetic surgery leads to various emotional outcomes through changes to the self (i.e. pride, self-satisfaction, subjective happiness, and increased guilt). We contribute to discourses of embodied practices (e.g. cosmetic surgery) related to the self and materialism (e.g., Richins, 2012; Schouten, 1991; Venkatesh et al., 2010).
        168.
        2018.07 구독 인증기관 무료, 개인회원 유료
        Introduction This research was conducted in order to examine the influence of corporate innovation such as product innovation and profit model innovation towards sustainable competitive advantage and marketing performance. In B2B, the two biggest concerns of a manufacturing company are to provide products suitable for customer's business and to secure profitability of company business. Especially in an age when customer needs are diverse, companies need a lot of investment and effort to differentiate their products. Even though it is doubtful whether products that achieve such differentiation can achieve successful business results. Unless it is a monopoly, there are limitations in satisfying individualized and customized market trends and diverse customer needs with the technology and product competitiveness of companies alone. Therefore, corporate innovation requires a comprehensive approach in terms of product innovation and business model innovation. And product innovation and continuous profit model innovation for improving the company's profit is a very important factor. In order to achieve these two core values, the company conducts efficient operations internally to continuously develop products that meet customer needs and to conduct close customer relationship management to maintain a firm brand position in the market. Therefore, this study is designed to investigate how the innovation efforts of companies in B2B affect the sustainable competitive advantage development and market performance. Unlike previous researches on corporate innovation which included product innovation, this study included profit model innovation as corporate innovation to investigate the effects of profit model innovation on the actual marketing performance of firms. In addition, it is distinguished from the existing customer-oriented competitive advantage study (Porter, 1985) by studying the effects of sustainable competitive advantage on market performance by defining and applying sustainable competitive advantage variables from the perspective of internal marketing efforts. Theoretical Development Firms' needs and efforts for technological innovation and product innovation are very important for sustainable growth through securing economic benefits of firms (Hauser et al., 2006, Dave et al., 2013). In order to achieve competitive advantage (low cost, product differentiation), companies pursued technological innovation and product innovation through R & D investment. However, in terms of providing a total solution that satisfies the needs of various customers in the global competitive environment and improving the profitability of the company, it is difficult to explain the innovation area of the company only by technological innovation and product innovation. Therefore, in this study, it defines the corporate innovation including the business model innovation such as profit model from the perspective of the system operation to the innovation area of the company according to the claim that the business model mediates the firm and business performance (Markides, 2006; Baden -Fuller & Haefliger, 2013). And using sustainable competitive advantage in terms of product leadership, operational excellence, and customer intimacy, this study analyzes the effects of these firm innovations on the sustainable competitive advantage and business performance. Corporate innovation is broadly categorized into three categories: process innovation, product innovation, and operational management innovation (Lee et al., 2013). And the Oslo manual classifies them as product innovation, process innovation, marketing innovation, and organizational innovation (OECD, 2005). In the past, where product-centered markets and external competition were stable, changes in product technology made business models largely changeable, so corporate innovation could be described as technological innovation and product innovation. However, the development of advanced technologies such as information and communication technology (ICT) requires that the field of corporate innovation activities be analyzed from a new business model perspective. This is because existing product innovation, process innovation, marketing innovation, and organizational innovation are insufficient to explain the birth and change of new business types occurring in the same industry. In addition, we can find examples of business model innovation as a type of corporate innovation in existing studies (Christensen, 1997; Christensen and Raynor, 2003; Markides, 2006; Taylor et al., 2012). Therefore, this study reflects these changes and includes business model innovation such as profit model as a type of corporate innovation. In addition, Porter (1985)'s traditional competitive strategy (low cost, product differentiation) has limitations in evaluating the impact of corporate innovation and analyzing its relationship with business performance. In order to compensate for this, we introduce three main variables: product leadership, operational excellence, and customer intimacy, which can segment the value domain of sustainable competitive advantage and measure strategic performance capability, as a sustainable competitive advantage (Treacy and Wiersema, 1995). Research Design In previous researches, it has focused on technological innovation and product innovation to achieve the competitive advantage of product for better business performance in competitive market. However, these studies do not adequately suggest corporate innovation direction for corporate’s sustainable growth in complex and evolving business environment. Therefore, this study redefines the domain of corporate innovation and sustainable competitive advantage and then analyzes the effect of corporate innovation and sustainable competitive advantage on business performance. The hypothesis to be analyzed through the research model is as follows: H1. Product innovation has a positive impact on sustainable competitive advantage. H2. Profit model innovation in Business model has a positive impact on sustainable competitive advantage. H3. Sustainable competitive advantage has a positive impact on marketing performance. H4. Product innovation has a positive impact on marketing performance. H5. Profit model innovation in Business model has a positive impact on marketing performance. <Figure 1 research model> To analyze this hypothesis, it surveyed 300 machinery manufacturing companies producing intermediate goods in Korea through questionnaires with 5 point Likert scale. And the results were analyzed using SPSS (ver. 24.0) and AMOS (ver. 24.0). Result and Conclusion The findings show that profit model innovation of business model has a positive effect on the sustainable competitive advantage. However, product innovation has only a positive effect on product leadership of sustainable competitive advantage. And the sustainable competitive advantage has had a positive impact on market performance. Profit model innovation of business model also has an impact on market performance but product innovation has not a positive effect on market performance. It is meaningful that the company has confirmed the importance of the profit model innovation as well as the existing product innovation as the corporate innovation direction to pursue continuously. A practical implication of this study is that rapid technological advances, market changes, and globalization, as Bashir and Verma (2017) argue, should change profit model of a business model in order to maintain a sustainable competitive advantage in B2B of manufacturing industry. In order to maintain a sustainable competitive advantage, business model innovation with a clear profit model is highly needed as a new management strategy for the future. The theoretical implication of this study is that the existing studies on corporate innovation are focused on technology innovation, and the effect of product innovation on business performance is relatively small. In particular, empirical studies on the effect of business profit model innovation on marketing performance were not enough. Therefore, it can be said that the fact that product innovation and business profit model innovation have an influence on market performance expands empirical research.
        4,000원
        169.
        2018.07 구독 인증기관·개인회원 무료
        Climate change is expected to become a considerable threat to life on earth and it already affects certain tourism destinations like mountain regions and costal destinations. For instance, Switzerland is regarded as one of the most popular ski destination worldwide, but today’s ski resorts in Switzerland is facing significant difficulties as weather condition has been particularly harsh for the ski industry in the last years. While ski resorts start to use various rate fences to implement differential pricing, there is relatively little research how their customers perceive these new pricing approaches. Therefore, this study tried to identify how various rate fences adopted in ski resorts, including the use of weather forecasts in differential pricing, are perceived by customers and consequently which of them could be successfully implemented to provide the industry with long-term benefits. In particular, this study focused on the effect of framing and gender on price perception. The study found that female are generally more sensitive to differential pricing and have the tendency to perceive it as less fair.
        170.
        2018.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Although atypical sensory processing is a core feature of autism spectrum disorder (ASD), there is considerable heterogeneity among ASD individuals in the modality and symptoms of atypical sensory processing. The present study examined visual processing of children with ASD, focusing on the complexity and orientation of visual information. Age- and -IQ-matched Korean children (14 ASD and 14 typically-developing (TD) children) received an orientation discrimination task involving static spatial gratings varied in complexity (simple versus complex) and orientation (horizontal versus vertical). The results revealed that ASD children had difficulty perceiving complex information regardless of orientation, whereas TD children had more difficulty with vertical gratings than horizontal gratings. Thus, group-level differences between ASD and TD children appeared greater when gratings were presented horizontally. Unlike ASD adult literature, however, ASD children did not show superior performance on simple gratings. Our findings on typical and atypical processing of ASD children have implications for both understanding the characteristics of ASD children and developing diagnostic tools for ASD.
        4,300원
        171.
        2018.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        In Korea, the daily waste production in 2015(excluding specified waste) was 404,812 tons, of which household waste accounted for 12.7%(51,247 tons/day). Total household food and vegetable waste amounted to 1,120 tons/day; of this, 70% of was ultimately used as feed or fertilizer and 30% was buried. In this study, a drying unit was developed to enable the production of solid refuse fuel using high-moisture food waste, and its performance was examined through an experiment. Thus, a laboratory pyrolysis system with a drying capacity of 500 kg/hr was manufactured. Food wastes were collected from a company cafeteria and from Changwon City and used for experiment. The drying characteristics of the food waste were examined depending on the input temperature of the drying air. The results of the food waste drying experiment showed that the total required drying time was approximately 20 hours, and the drying speed was approximately 2.90 %/hr. The drying time was five hours longer than the research target value(15 hours per batch). However, the time was approximately 16 hours when the preheating and cooling times required for the input and output were excluded, which was close to the research target value. The drying time did not show a large difference depending on the temperature of the input drying air. Drying time was 21 hours at 155℃, and thus drying operation would be possible without the use of high-temperature air(more than 200℃) when waste heat is utilized in the future. It is thought that rather than the temperature of the input air, it is the contact area between the input air and the food waste that has a significant effect on reducing the drying time.
        4,000원
        172.
        2018.06 구독 인증기관 무료, 개인회원 유료
        The story of the island called Jeju coincides with the history of the Republic of Korea. There is a lot of speciality, so if you take a closer look, you can find the history and universality of the land. So I am interested in people who are looking for Jeju. Especially after liberation. I think that the process from the colonization of Japanese Imperialism to the making of the Korean people may be common among people living in other peripheral areas. Okinawa and so on Taiwan. The process by which the state uses violence to make people obey, or incorporate them, is similar to the invasive approach of past imperialism. In the process of establishing anti-communism state, it is necessary to study whether a person should be a citizen or not, and those who do not have to be annihilated as a stigma of "red". It is very important for us to live today. Most of the history of the land on which you are based is hard to understand only in learning history related to the country at school. It is only for the teachers unless the local school board forms the appropriate curriculum.
        4,000원
        173.
        2018.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Despite the evidence of an association between foreign language (FL) reading anxiety and reading comprehension, only a few studies have investigated how FL reading anxiety interacts with the reading process. This study examined how people with different anxiety levels approach reading tasks differently; that is, the relationships among foreign language reading anxiety, cognitive interference, reading strategy use, and the effects of these constructs on actual reading comprehension. Participants (N=265) were Korean adolescent EFL learners. From analyses of their responses to FL reading anxiety scale, Cognitive Interference Questionnaire (CIQ), a strategy inventory for reading comprehension, and reading comprehension tasks, results suggested that anxiety played a critical role in the interplay of attention and reading strategy use, which were associated with comprehension. Highly anxious students who were occupied with off-task thoughts tended to use more local reading strategies while less anxious students were more focused on completing the reading tasks and employed more global reading strategies. Results also suggested that the significant predictors of reading comprehension were FL reading anxiety as well as the CIQ and Global strategies, which indicated that the less anxious students who were more focused during reading, and those who employed more Global strategy scored higher in reading comprehension.
        7,700원
        179.
        2018.04 KCI 등재 SCOPUS 구독 인증기관 무료, 개인회원 유료
        We propose a speedy two-step deposit process to form an Au electrode on hole transport layer(HTL) without any damage using a general thermal evaporator in a perovskite solar cell(PSC). An Au electrode with a thickness of 70 nm was prepared with one-step and two-step processes using a general thermal evaporator with a 30 cm source-substrate distance and 6.0 × 10−6 torr vacuum. The one-step process deposits the Au film with the desirable thickness through a source power of 60 and 100 W at a time. The two-step process deposits a 7 nm-thick buffer layer with source power of 60, 70, and 80 W, and then deposits the remaining film thickness at higher source power of 80, 90, and 100W. The photovoltaic properties and microstructure of these PSC devices with a glass/FTO/TiO2/perovskite/ HTL/Au electrode were measured by a solar simulator and field emission scanning electron microscope. The one-step process showed a low depo-temperature of 88.5 oC with a long deposition time of 90 minutes at 60 W. It showed a high depo-temperature of 135.4 oC with a short deposition time of 8 minutes at 100 W. All the samples showed an ECE lower than 2.8% due to damage on the HTL. The two-step process offered an ECE higher than 6.25% without HTL damage through a deposition temperature lower than 88 oC and a short deposition time within 20 minutes in general. Therefore, the proposed two-step process is favorable to produce an Au electrode layer for the PSC device with a general thermal evaporator.
        4,000원
        180.
        2018.04 KCI 등재 SCOPUS 구독 인증기관 무료, 개인회원 유료
        The property changes of 18, 14, and 8K green gold alloys for jewelry are observed by adding 0.0, 3.0, and 5.0 wt% of indium (In), respectively. To check the composition of the alloys, an energy dispersive spectroscopy (EDS) analysis is conducted. Color and microstructure analysis is executed through bare-eye, macro camera, UV-VIS-NIR-colormeter, and optical microscope. The melting point, wetting angle, and hardness are measured using TGA-DTA, a wetting angle tester, and a Vickers hardness tester. The EDS analysis result demonstrates that each of the green gold alloys was manufactured with purposed contents. The color analysis result shows that the color of the alloys is similar to the color of the conventional 4 wt%- Cd 18K green gold, and the green color improves as the In content increases. The micro structure analysis result demonstrates that grain refinement improves as the amount of In increases. Enhancements in the melting point, wettability, and Vickers hardness changes appear as the In content increases and Au content decreases. The hardness is up to 260, which implies good durability. Therefore, the results suggest that the proposed 18, 14, and 8K In-added green gold alloys enhance the properties of jewelry products with regard to the green color, castability, and durability.
        4,000원