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( Heesook Hong ),( Hye-shin Kim ) 한국의류학회 2016 한국의류학회지 Vol.40 No.6
Applying the S-O-R Model within an online context, a hypothesized model incorporates three review characteristics (perceived concreteness, exaggeration, and sufficient quantity of reviews) for apparel products in order to present their impact on consumer perceptions of review usefulness and consumer attitude toward and patronage intent for the online stores hosting the reviews. An online survey of Korean women (N=299) reported their experiences in purchasing apparel products online and reading apparel reviews on a regular basis. Testing of the hypothesized model showed the usefulness of reviews were determined by two review characteristics (S: perceived concreteness and sufficient quantity of reviews); however, the negative effect of exaggerated reviews were insignificant. In addition, the perceived usefulness of reviews (O-cognitive) hosted by an online store influenced online store attitude (O-affective) which subsequently led to online store patronage intent (R). This study systemically advances online retail literature by showing how the characteristics of online reviews (as a part of the online store environment) can influence attitude toward online stores and patronage intent for online stores. Long term relationships with consumers can be achieved through the building of mechanisms to enhance the perceived usefulness of reviews by employing the strategies of hosting concrete reviews and offering a sufficient quantity of reviews. This study addresses removes research gaps by testing an adapted the S-O-R Model that frames review information as an element of an online store environment using a large sample.
Sub‐Nanometer Level Size Tuning of a Monodisperse Nanoparticle Array Via Block Copolymer Lithography
Shin, Dong Ok,Lee, Duck Hyun,Moon, Hyoung‐,Seok,Jeong, Seong‐,Jun,Kim, Ju Young,Mun, Jeong Ho,Cho, Heesook,Park, Soojin,Kim, Sang Ouk WILEY‐VCH Verlag 2011 Advanced Functional Materials Vol.21 No.2
<P><B>Abstract</B></P><P>The fabrication and catalytic application of a size‐tunable monodisperse nanoparticle array enabled by block copolymer lithography is demonstrated. Highly uniform vertical cylinder nanodomains are achieved in poly(styrene‐<I>block</I>‐4‐vinylpyridine) (PS‐<I>b</I>‐P4VP) diblock copolymer thin‐films by solvent annealing. The prominent diffusion of the anionic metal complexes into the protonated P4VP cylinder nanodomains occurs through specific electrostatic interactions in a weakly acidic aqueous solution. This well‐defined diffusion with nanoscale confinement enables preparation of the laterally ordered monodisperse nanoparticle array with sub‐nanometer level precise size tuning. The controlled growth of monodisperse nanoparticle arrays is proven by their catalytic use for vertical carbon nanotube (CNT) growth via plasma enhanced chemical vapor deposition (PECVD). Since the size of the catalyst particles is the decisive parameter for the diameters and wall‐numbers of CNTs, the highly selective growth of double‐walled or triple‐walled CNTs could be accomplished using monodisperse nanoparticle arrays.</P>
Shin, Dong Ok,Lee, Duck Hyun,Moon, Hyoung‐,Seok,Jeong, Seong‐,Jun,Kim, Ju Young,Mun, Jeong Ho,Cho, Heesook,Park, Soojin,Kim, Sang Ouk WILEY‐VCH Verlag 2011 Advanced functional materials Vol.21 No.2
<P><B>Abstract</B></P><P>The fabrication and catalytic application of a size‐tunable monodisperse nanoparticle array enabled by block copolymer lithography is demonstrated. Highly uniform vertical cylinder nanodomains are achieved in poly(styrene‐<I>block</I>‐4‐vinylpyridine) (PS‐<I>b</I>‐P4VP) diblock copolymer thin‐films by solvent annealing. The prominent diffusion of the anionic metal complexes into the protonated P4VP cylinder nanodomains occurs through specific electrostatic interactions in a weakly acidic aqueous solution. This well‐defined diffusion with nanoscale confinement enables preparation of the laterally ordered monodisperse nanoparticle array with sub‐nanometer level precise size tuning. The controlled growth of monodisperse nanoparticle arrays is proven by their catalytic use for vertical carbon nanotube (CNT) growth via plasma enhanced chemical vapor deposition (PECVD). Since the size of the catalyst particles is the decisive parameter for the diameters and wall‐numbers of CNTs, the highly selective growth of double‐walled or triple‐walled CNTs could be accomplished using monodisperse nanoparticle arrays.</P>
신명선(Myungsun Shin),장현진(Hyunjin Chang),김효정(Hyojung Kim),전희숙(Heesook Jeon) 한국언어치료학회 2014 言語治療硏究 Vol.23 No.2
Purpose: In disfluency evaluation, it is difficult to compare the evaluation results of disfluency and to decide whether to use what analytical method because disfluency analysis criteria are different in each evaluation tool and in each study. This study is aimed at establishing better standards on frequency analysis by comparatively analyzing the standards on disfluency frequency measured in various ways in the field of fluency assessment. Methods: Forty-seven adults with developmental stuttering were asked to talk for more than 2 minutes about their daily lives. These speech samples were divided into the following categories: normal disfluency; abnormal disfluency; total disfluency; and complex disfluency. Afterwards, their frequency and percentages were measured. Results: First, among the disfluency type categories, there were statistically significant differences between the abnormal disfluency and total disfluency. In particular, the abnormal disfluency frequency was more related to the severity of stuttering. Second, among the complex disfluency types, the most frequent case was normal disfluency and abnormal disfluency combined. Both the single count and multi count method were highly correlated with the severity of stuttering. Also, there was a high correlation between the single count and multi count. Third, there were statistically significant differences between the frequency of abnormal disfluency per 100 syllables and the frequency per minute. In particular, the frequency per 100 syllables was more related to the severity of stuttering. Conclusions: These findings could serve as important data for establishing standards on frequency analysis; it could lead to a better method for measuring, analyzing, and recording disfluency frequency in the fluency assessment of stutterers.