TiO2-doped activated carbon fibers (ACFs) were successfully prepared as capacitive deionization (CDI) electrode materials by facile ultrasonication-assisted process. ACFs were treated with titanium isopropoxide (TTIP) and isopropyl alcohol solutions of different concentrations and then calcinated by ultrasonication without heat-treatment. The results show that a certain amount of anatase TiO2 was present on the ACF surface. The specific capacitance of the TiO2-doped ACF electrode was remarkably improved (by 93.8% at scan rate of 50 mV s–1) over that of the untreated ACF electrode, despite decreases in the specific surface area and total pore volume upon TiO2 doping. From the CDI experiments, the salt adsorption capacity and charge efficiency of the sample with TTIP percent concentration of 15% were found to considerably increase by 71.9 and 57.1%, respectively. These increases are attributed to the improved wettability of the electrode, which increases the number of surface active sites and facilitates salt ion diffusion in the ACF pores. Additionally, the Ti-OH groups of TiO2 act as electrosorption sites, which increases the electrosorption capacity.

The ride quality (i.e. smoothness) is a key factor for evaluating the construction quality of expressway asphalt pavement. Conventionally, three paving devices are widely used to control the surface layer thickness: leveling sensor (i.e. LS), short-range-surfacing-contact-ski (i.e. SSCS) and long-range-surfacing-contact-ski (i.e. LSCS). However, each of these levelling tools presents one major drawback. In the case of LS, if the original sub-layer evenness is poor, the final asphalt pavement surface and its smoothness will be negatively affected. The SSCS cannot assure satisfactory smoothness when relatively long paving section (in the order of 10 km) are paved. While the LSCS would reduce the drawback of the SSCS, its weight on the one hand and its length on the other discourage its use in the paving site especially for curved sections. In this paper, a next generation pavement smoothness leveling equipment, known as non-contact-digital-ski (i.e. NCDS) was implemented, evaluated and compared to the conventional equipment leveling device. The international Roughness Index (IRI m/km) was measured on sections paved with and without NCDS and the results visually and statistically compared. In addition, for the same sections, the modulus of the pavement layers was computed and compared by means of Falling Weight Deflectometer (i.e. FWD). It was observed that when NCDS is used for asphalt pavement overlay of existing concrete pavement, significant improvement in IRI (i.e. IRI<1.0m/km) and consistently uniform elastic modulus could be achieved compared to the conventional levelling and paving method.

Polymer electrolyte membrane fuel cells (PEMFCs) have attracted particular interest as alternative and enviromentally friendly energy source for both mobile and stationary application. The perfluorosulfonic acid membranes, such as Nafion® are most used PEMs because of their good chemical and electrochemical stability. However they have drawbacks such as high cost, low application temperature, insufficient durability. Sulfonated poly (arylene ether)s, poly (phenylene ether)s, poly (arylene ether ketone)s have beem developed. This work is an attempt to synthesize sulfonated poly (arylene ether)s contained phosphinate moiety which is pendant phenyl structure. Sulfonated poly (arylene ether)s membranes were prepared from DOPO-BPA, 4,4’-sulfonyl diphenol(SFDPS), 1,4-bis(4-fluoro benzoyl)benzene(1,4-FBB).

박물관, 기록원 등의 주요 소독약제인 메틸브로마이드(MB)와 Ethylene Oxide(EO)는 오존층 파괴 물질 및 1급 발암물질로 규제가 되고 있어 대체 훈증제 개발이 필요한 실정이다. 따라서, 친환경 약제인 검역훈증제 에틸포메이트 (베이퍼메이트®)의 적용가능성을 확인하고자 주요 해충인 독일바퀴(Blatella germanica) 및 흰개미(Reticulitermes speratus)를 대상으로 Dose response 실험을 실시하였다. 공시충은 팜한농 작물보호연구센터 곤충사육실에서 누대사육중인 개체를 사용하였으며, 데시게이터(6.9L)에 농도별로 24시간동안 밀폐 훈증처리하여 약효를 조사하였다. 통계분석은 Probit analysis 통해 L(Ct) (Lethal Concentration x Time, gꞏhꞏm3)값을 산출하였다. 시험결과 L(Ct)50 및 L(Ct)99 값은 독일바퀴(혼합태)의 경우 48.38 및 346.34 gꞏhꞏm3 흰개미(성충)은 14.91및 660.94 gꞏhꞏm3로 나타났다. 모두 방제가 가능한 L(Ct)99 값은 660.94 gꞏhꞏm3으로 이는 에틸포메이 트 28.2 g/m3(베이퍼메이트® 170 g/m3)를 24시간 처리시 완전 방제가 가능할 것으로 판단된다.

This article is focused on some scenarios of a third way for Jeju Peace Island for Koreas as one of provincial government. In 2002 and 2006, We suggest United Three States of Korea : South Korea, North Korea and Jeju Island Korea. But in real situation Korean government chooses the Jeju Special Self-Governing Province. After practicing it 11 years, Jeju islanders are complaining it is not enough for them to improve its autonomy to push its policies on its way without empowering main authorities to local province from central government. So, they wants more power through revision of Korean Constitution as same as State government of USA and Switzerland such as guaranteeing special status of Jeju government as Hong Kong of China. In our opinion, in a word, Jeju islanders want to become “ Jeju Peace Self-Governing Province,” for two Koreas.

Near infrared spectroscopy (NIRS) is a rapid and accurate method for analyzing the quality of cereals, and dried animal forage. However, one limitation of this method is its inability to measure fermentation parameters in dried and ground samples because they are volatile, and therefore, respectively lost during the drying process. In order to overcome this limitation, in this study, fresh coarse haylage was used to test the potential of NIRS to accurately determine chemical composition and fermentation parameters. Fresh coarse Italian ryegrass haylage samples were scanned at 1 nm intervals over a wavelength range of 680 to 2500 nm, and optical data were recorded as log 1/reflectance. Spectral data, together with first- and second-order derivatives, were analyzed using partial least squares (PLS) multivariate regressions; scatter correction procedures (standard normal variate and detrend) were used in order to reduce the effect of extraneous noise. Optimum calibrations were selected based on their low standard error of cross validation (SECV) values. Further, ratio of performance deviation, obtained by dividing the standard deviation of reference values by SECV values, was used to evaluate the reliability of predictive models. Our results showed that the NIRS method can predict chemical constituents accurately (correlation coefficient of cross validation, R2 cv, ranged from 0.76 to 0.97); the exception to this result was crude ash (R2 cv = 0.49 and RPD = 2.09). Comparison of mathematical treatments for raw spectra showed that second-order derivatives yielded better predictions than first-order derivatives. The best mathematical treatment for DM, ADF, and NDF, respectively was 2, 16, 16, whereas the best mathematical treatment for CP and crude ash, respectively was 2, 8, 8. The calibration models for fermentation parameters had low predictive accuracy for acetic, propionic, and butyric acids (RPD < 2.5). However, pH, and lactic and total acids were predicted with considerable accuracy (R2 cv 0.73 to 0.78; RPD values exceeded 2.5), and the best mathematical treatment for them was 1, 8, 8. Our findings show that, when fresh haylage is used, NIRS-based calibrations are reliable for the prediction of haylage characteristics, and therefore useful for the assessment of the forage quality.

Porcine spermatogonial stem cells (SSCs) prefer three-dimensional (3D) culture systems to 2D ones for the maintenance of self-renewal. Of the many 3D culture systems, agar-based hydrogels are candidates for supporting porcine SSC self-renewal, and there are various types of agar powder that can be used. In this study, we sought to identify an agar-based 3D hydrogel system that exhibited strong efficacy in the maintenance of porcine SSC self-renewal. First, 3D hydrogels with different mechanics were prepared with various concentrations of Bacto agar, lysogeny broth (LB) agar, and agarose powder, and the 3D hydrogel with the strongest alkaline phosphatase (AP) activity and greatest increase in colony size was identified for the different types of agar powder. Second, among the porcine SSCs cultured in the different 3D hydrogels, we analyzed the colony formation, morphology, and size; AP activity; and transcription and translation of porcine SSC-related genes, and these were compared to determine the optimal 3D hydrogel system for the maintenance of porcine SSC self-renewal. We found that 0.6% (w/v) Bacto agar-, 1% (w/v) LB agar-, and 0.2% (w/v) agarose-based 3D hydrogels showed the strongest maintenance of AP activity and the most pronounced increase in colony size in the culture of porcine SSCs. Moreover, among these hydrogels, the strongest transcription and translation of porcine SSC-related genes and largest colony size were detected in porcine SSCs cultured in the 0.2% (w/v) agarose-based 3D hydrogel, whereas there were no significant differences in colony formation and morphology. These results demonstrate that the 0.2% (w/v) agarose-based 3D hydrogel can be effectively used for the maintenance of porcine SSC self-renewal.

We conclude if Jeju Peace Island for Koreas 2018 gets international awareness from participants in the spheres of Peace Island Education & Tourism Welfare Model at the Grass Roots Level, it will contribute to institutionalization of both peace island and welfare tourism. In addition, if Jeju government supports the financial budget for the establishment of a Jeju Peace University or a Jeju Environmental University, our efforts might include an impetus to create and operate a Jeju Peace University or a Jeju Environmental University based on collaborative Jeju Peace Studies in Korea and internationally in the nearer future. Of course, we believe that, through this kind of collaborative leadership, a vision of a Nonviolence Korea “Jeju Peace Island for two Koreas” might serve as a buffer zone potentially approved by the Six Nations in the Asia Pacific region in 2019.

Sustainability is currently regarded as an imperative business goal by multiple stakeholders, comprising investors, customers, and policymakers (Nidumolu, Prahalad, & Rangaswami, 2009; Sheth, Sethia, & Srinivas, 2011). In particular, how effectively the fashion industry deals with the challenges of sustainability will define its success for eras to come. This study focuses on how social power, parasocial interaction, and social capital work for purchase intention of sustainable fashion products in the fashion YouTube context. Specifically, the study investigates the effects of social power on parasocial interaction, the effects of parasocial interaction on social capital, and the effects of social capital on purchase intention for sustainable fashion products and the implications for sustainable fashion marketing and management. Theoretical Framework This study defines social power as types of power that can be employed to exert influence on others. The five social power bases (French & Raven, 1959) are discussed in terms of perceived influence: Expert power refers to someone who is perceived to be an expert, to have expert knowledge, or to possess special information. Legitimate power relates to someone who is perceived to have a legitimate right to impose behavioral requirements. Referent power is associated with someone who is personally identified. Reward power refers to someone who is perceived to have ability and coercive power to someone who is perceived to have the capability to confer punishment. Parasocial interaction concerns the relationship between media personalities and media users (Frederick, Lim, Clavio, & Walsh, 2012; Horton & Wohl, 1956; Jin & Park, 2009). Parasocial interaction can be defined as “immediate, personal, and reciprocal, but these qualities are illusory and presumably not shared by the speaker” (Horton & Strauss, 1957, p. 580; Jin & Park, 2009). Parasocial interaction theory focuses on the way audiences interact, relate to, and develop relationships with a celebrity (Jin & Park, 2009; Lee & Watkins, 2016). Audiences create a strong bond and intimacy with a celebrity while viewing media channels such as TV programs and social interactive media where audiences feel closer to the celebrity (Kassing & Sanderson, 2009; Lee & Watkins, 2016). Social capital refers to “the aggregate of the actual or potential resources linked to possession of a durable network of more or less institutionalized relationships” (Bourdieu, 1985, p. 248). Social capital involves the relationship between providing access to resources possessed by the associates and the nature and amount of those resources (Portes, 1998). Social capital can be clarified as an intangible force that helps to bind society together by transforming self-seeking individuals into members of a community with shared interests, shared assumptions about social relations, and a sense of the common good (Etzioni, 1996). Sustainability refers to three dimensions: economic, environmental, and social (Sheth, Sethia, & Srinivas, 2011). Sustainability transforms into a triple bottom line responsibility, with the inference that assessment of business outcomes should be based not only on economic performance, but also on the environmental and social impact. Environmental and social demands from various stakeholders contribute to the pressure for businesses to reflect sustainability. Thus, sustainable marketing practices are defined from economic, environmental, and social perspectives. In this study, effective sustainability measurements involve purchase intention for sustainable products especially emphasizing environmental and social performance. Focused on the effects of social power on parasocial interaction and the effects of parasocial interaction on social capital and purchase intention for sustainable products, this study tests the following hypotheses: H1. Social power (expert, referent, legitimate, and reward) positively influences parasocial interaction. H2. Parasocial interaction positively influences social capital (bonding and bridging). H3. Social capital positively influences purchase intention for sustainable fashion products (environmentally and socially sustainable fashion products). Methods This study used a survey to investigate key questions about the associations among social power, parasocial interaction, social capital, and purchase intention for sustainable fashion products. A total of 230 fashion YouTube users recruited from South Korea participated in the survey. Of the 230 participants, 40 were men (17.4%) and 190 were women (82.6%), with ages ranging from 20 to 39 (mean = 29.43 years). The social power of the fashion YouTuber (e.g., vlogger) was measured through an existing social power scale including expert, referent, legitimate, and reward measures that elicited user responses to 14 items (Goodrich & Mangleburg, 2010). Parasocial interaction was measured on the basis of user responses to six items on an existing 5- point scale that assessed parasocial interaction (Jin & Park, 2009). This study measured social capital on a 5-point Likert scale (1 = strongly disagree; 5 = strongly agree), which was adapted from an existing Internet social capital scale (Williams, 2006). Purchase intention was measured using three 7-point semantic differential scales (likely/unlikely, probable/improbable, possible/impossible; MacKenzie, Lutz, & Belch, 1986) after informing participants that they might be purchasing environmentally and socially sustainable products. Results The overall goodness-of-fit for this measurement model was acceptable (Chi-square 1236.138, df = 680, p <0.001, chi/df=1.818, TLI = 0.900, CFI = 0.913, RMSEA = 0.060). The reliability coefficients of all 14 social power measures including expert, referent, legitimate, and reward were 0.871, 0.782, 0.657, and 0.865, respectively. The reliability coefficient of all six parasocial interaction measures was 0.873. The reliability coefficients of all social capital measures were 0.684 for bonding factors and 0.899 for bridging factors. The reliability coefficients of purchase intention of environmentally and socially sustainable product measures were 0.921 and 0.947, respectively. The coefficients indicate acceptable reliability of the measures. This study used partial least squares (PLS) for structural equation modeling, which has good statistical power for samples. Social power, including referent (β = 0.018, p < 0.05) and reward (β = 0.359, p < 0.001), showed statistically positive effects on parasocial interaction. The results partially supported H1. Parasocial interaction showed statistically positive effects on social capital, the bonding factor (β = 0.578, p < 0.001), and the bridging factor (β = 0.651, p < 0.001). Thus, the results supported H2. For parasocial capital, bridging showed statistically positive effects on purchase intention of environmentally (β = 0.233, p < 0.01) and socially (β = 0.284, p < 0.01) sustainable products. Thus, the results partially supported H3 (see Table 1, Figure 1). Discussion This study contributes to clarifying the concept of social capital and determining the relationships between social capital and purchase intention for sustainable fashion products. This study contributes to the theoretical foundation and implications of social capital and sustainability. Specifically, social power, including referent and reward, positively influences parasocial interaction. Parasocial interaction has positive effects on social capital. In turn, social capital positively influences purchase intention for sustainable fashion products. This is the first study on the effects of social capital on purchase intention for sustainable fashion products in the fashion YouTube context. This study suggests that social capital is a strong influential variable for purchase intention regarding sustainable fashion products. Thus, fashion marketers should consider social capital management in the fashion YouTube context while tailoring their brand communications to enhance their sustainable marketing and management.

Luxury brand marketers have recently turned their attention to luxury brand consumers and their social brand communities devoted to the brands. Luxury brands appeal to customers by enhancing their images regarding heritage, quality, and artistic value. Luxury fashion brands also establish social media communities to communicate their images more effectively. This study uses the key concepts of integration and interactivity to provide theoretical foundations to investigate luxury brand communities (LBCs) in the social media context. A survey was given to 252 members of Facebook fan pages for luxury brands from South Korea. This study examines effects of interaction as a process on perceived interactivity of LBCs in social media, and consequences, attitude, purchase intentions, and brand loyalties, hence offering implications for luxury brand management academics and practitioners

3D printing is an additive software manufacturing technology for designing and creating real objects using a layering technique. Global brands including Coca Cola and Warner Bros have successfully offered the first 3D printing campaigns, but the market is still untapped for using 3D printing marketing in global advertising. Global brands potentially can undertake 3D printing technology campaigns that will offer innovative and strong experiences for enhancing brand values and competitiveness. Luxury brands are particularly recognized for their rarity, uniqueness, innovation, and classic traditions. Luxury brands can thus use 3D printing campaign experiences to expand the cultural imagination in coherence with luxury identifications. The purpose of this study is to examine the effects of 3D printing campaign experience on attitude toward campaigns, perceived value of luxury brands, and purchase intentions. The authors offer implications for advertising practitioners by constructing a theoretical model regarding 3D printing campaigns and perceived values of luxury brands.