The Effects of Shopping Values on Mainland Chinese Tourists` Shopping Satisfaction in South Korea

Luo, Yuli,Song, Hyoung Ju(송형주),Kang, Kyung Ho(강경호) 한국서비스경영학회 2016 서비스경영학회지 Vol.17 No.4

It is crucial to investigate factors affecting mainland Chinese tourists’ shopping satisfaction, considering their great contribution to tourism shopping income in South Korea. Based on previous studies, shopping satisfaction is determined by utilitarian value and hedonic value and each of the value has a formative second-order construct values. Additionally, according to some former studies, factors affecting shopping satisfaction are different depending on gender. Thus, the objective of this study is to examine the gender difference in the context of effects of shopping values on shopping satisfaction of mainland Chinese tourists who have a shopping experience in Seoul, South Korea. Data were collected through questionnaires distributed at popular tourism shopping sites in Seoul, South Korea. The results of this study show that the sources of shopping satisfaction of female mainland Chinese tourists are values of product offerings, product information, convenience, adventure, gratification, and socialization; those of male are values of product offerings, gratification, and socialization. This study is expected to contribute to the current tourism shopping literature and provide valuable information to retailers in South Korea.

Role of Graphene in Water-Assisted Oxidation of Copper in Relation to Dry Transfer of Graphene

Luo, Da,You, Xueqiu,Li, Bao-Wen,Chen, Xianjue,Park, Hyo Ju,Jung, Minbok,Ko, Taeg Yeoung,Wong, Kester,Yousaf, Masood,Chen, Xiong,Huang, Ming,Lee, Sun Hwa,Lee, Zonghoon,Shin, Hyung-Joon,Ryu, Sunmin,Kwak American Chemical Society 2017 Chemistry of materials Vol.29 No.10

<P>The process of oxidation of a copper surface coated by a layer of graphene in water-saturated air at 50 degrees C was studied where it was observed that oxidation started at the graphene edge and was complete after 24 h. Isotope labeling of the oxygen gas and water showed that the oxygen in the formed copper oxides originated from water and not from the oxygen in air for both Cu and graphene-coated Cu, and this has interesting potential implications for graphene as a protective coating for Cu in dry air conditions. We propose a reaction pathway where surface hydroxyl groups formed at graphene edges and defects induce the oxidation of Cu. DFT simulation shows that the binding energy between graphene and the oxidized Cu substrate is smaller than that for the bare Cu substrate, which facilitates delamination of the graphene. Using this process, dry transfer is demonstrated using poly(bisphenol A carbonate) (PC) as the support layer. The high quality of the transferred graphene is demonstrated from Raman maps, XPS, STM, TEM, and sheet resistance measurements. The copper foil substrate was reused without substantial weight loss to grow graphene (up to 3 cycles) of equal quality to the first growth after each cycle. It was found that dry transfer yielded graphene with less Cu impurities as compared to methods using etching of the Cu substrate. Using PC yielded graphene with less polymeric residue after transfer than the use of poly(methyl methacrylate) (PMMA) as the supporting layer. Hence, this dry and clean delamination technique for CVD graphene grown on copper substrates is highly advantageous for the cost-effective large-scale production of graphene, where the Cu substrate can be reused after each growth.</P>

Benefits from Utilizing A Conceptual Model of Indoor GIS Based Evacuation Information System

Luo, Wen-Yuan,Ahn, Byung-Ju,Kim, Jae-Jun,Lee, Gwang-Gook,Kim, Whoi-Yul Korea Institute of Construction Engineering and Ma 2009 한국건설관리학회 논문집 Vol.10 No.5

When an emergency situation happens in buildings, the top priority is to ensure the occupant from danger as soon as possible. Achieving that goal is a multifaceted and difficult task. However, current evacuation systems have many deficiencies in dealing with the emergency in multi-level structures. The shortage of abilities to continuously update database, predict the future situation and provide the information to users with contextual information is the limit in current systems. Thus, it is very crucial to introduce Evacuation Information System (EIS), which is able to respond quickly to the emergency, and transfer the information to both the administrator and the occupant. The main purpose of this paper is to build EIS on the basis of the indoor Geographical Information System (GIS). When the emergency happens, EIS gives the instruction to Emergency Response Model (ERM) at once. ERM carries out the order and calculates the optimal evacuation routes, then sends the result to EIS. At last, EIS transmits evacuation messages to the occupant who implements evacuation plan. This paper highlights the benefits of EIS in two aspects. One is that EIS can update the data continuously to support evacuation strategy-making. The other is that it can transmit evacuation messages to both the administrator and the occupant.

SURF와 멀티밴드 블렌딩에 기반한 파노라마 스티칭

라연(Luo Juan),신성식?(Sungsik Shin),박현주(Hyun Ju Park),권오봉(Ou-Bong Gwun) 한국멀티미디어학회 2011 멀티미디어학회논문지 Vol.14 No.2

원자력발전소의 직무 스트레스 측정방법에 대한 비교 연구

Meiling Luo,Yeon Ju Oh,Tong Il Jang,Yong Hee Lee 대한인간공학회 2012 대한인간공학회 학술대회논문집 Vol.2012 No.11

고신뢰도 체계인 원자력발전소(이하 원전)에서는 스트레스로 인한 인적오류는 중대한 사고를 초래할 수 있다. 따라서 직무 관련 스트레스에 대한 보다 정확한 평가가 필요하다. 스트레스 측정 사례를 살펴보면 설문, 인터뷰, 생리학적 실험, 혈액 및 타액 채취 등 다양한 평가방법들이 사용되고 있다. 원전에서의 스트레스 측정은 주로 설문기반의 주관적인 방법이 사용되고 있지만, 그 적합성에 대한 연구는 미흡하다. 본 논문에서는 기존의 직무스트레스 측정방법을 비교하고, 원전의 직무 스트레스 평가에 적합한 측정방법을 모색하였다. 새로운 방법으로 원전에서 수행되는 직무의 유형을 분류하고 유사한 타 산업에서의 직무에 적용되는 스트레스 측정법을 검토하였다. 원전 직무의 특성상 추가적인 고려사항을 합산하거나, 직무요소의 분할을 통해 원전 직무에 적용 가능한 스트레스 측정법을 제안하였다. 또한 이들을 종합하여 원전 종사자의 스트레스를 보다 정확하게 평가할 수 있도록 단계적 접근 방안을 제시하였다.

Development of Competency Support Systems for a Positive Safety Culture in Nuclear Organizations

( Yeon Ju Oh ),( Sa Kil Kim ),( Meiling Luo ),( Yong Hee Lee ) 한국감성과학회 2014 춘계학술대회 Vol.2014 No.-

The safety culture is defined that it is the product of individual and group values, attitude, perceptions, competencies, and patterns of behavior that determine the commitment to, and the style and proficiency of, an organization`s safety culture management. Organizations with a positive safety culture are built by safety culture competency model and are characterized by communications founded on mutual trust, by ethical decision making, and by self-empowering and conflict solution management, etc. Safety culture competency is not an entity in itself, but is generative in its development. The process of achieving a positive safety culture can only be accomplished through the willingness and competence to draw conclusion from information safety culture support system and implement the necessary improvements. The ability to maintain and achieve a safety culture is dependent on the consistent approach in striving to meet organizational policies and objective through management practices and promotion of individual safety behaviors. The aims of this study is to design the competency support system for a strengthen safety culture. The benefits of the safety culture competency support system are that empowering employees can be willing to participate spontaneously and management demonstrates the commitment, and also the results produced by support system might be trust for a positive safety culture by competency support system.

Development of Competency Support Systems for a Positive Safety Culture in Nuclear Organizations

Yeon-Ju Oh,Sa-Kil Kim,Meiling Luo,Yong-Hee Lee 대한인간공학회 2014 대한인간공학회 학술대회논문집 Vol.2014 No.5

Bioconversion of conjugated linoleic acid by Lactobacillus plantarum CGMCC8198 supplemented with Acer truncatum bunge seeds oil

Dong-Ju Chen,Li-Hua Yan,Qian Li,Cai-jiao Zhang,Chuan-Ling Si,Zhong-Yuan Li,Ya-Jian Song,Hao Zhou,Tong-Cun Zhang,Xuegang Luo 한국식품과학회 2017 Food Science and Biotechnology Vol.26 No.6

Conjugated linoleic acid (CLA) isomers, c9, t11- CLA and t10, c12-CLA, have been proved to exhibit excellent biomedical properties for potential use in anticancer applications and in reducing obesity. Acer truncatum Bunge (ATB), which is rich in unsaturated fatty acids, including oleic acid, linoleic acid, and nervonic acid, is a new resource for edible oil. In the present study, we developed a new method for producing two CLA isomers from ATB-seed oil by fermentation using Lactobacillus plantarum CGMCC8198 (LP8198), a novel probiotics strain. Polymerase chain reaction results showed that there was a conserved linoleate isomerase (LIase) gene in LP8198, and its transcription could be induced by ATBseed oil. Analyses by gas chromatography–mass spectrometry showed that the concentration of c9, t11-CLA and t10, c12-CLA in ATB-seed oil could be increased by about 9- and 2.25-fold, respectively, after being fermented by LP8198.

Prevalence and Genotype Distribution of Human Papillomavirus Infections in Women Attending Hospitals in Chaozhou of Guangdong Province

Chen, Qiang,Luo, Zhao-Yun,Lin, Min,Lin, Qi-Li,Chen, Chan-Yu,Yang, Chun,Xie, Long-Xu,Li, Hui,Zheng, Jia-Kun,Yang, Li-Ye,Ju, Gui-Zhi Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.4

Background: Human papillomavirus (HPV) infection is the main cause of cervical cancer. Limited epidemiologic data of HPV prevalence are available for women attending hospitals in southern China. This study aimed to evaluate the profiles of HPV infection and cytology status in gynecological outpatients in Chaozhou City. Methods: A total of 2833 eligible women were enrolled. The HPV GenoArray test was used for HPV detection and genotyping. Nearly one half of the HPV positive women received liquid-based cytology test. Logistic regression analysis was performed to assess the predictable effects of age and genotype for categories of abnormal cytology. Results: The prevalence of overall, high-risk, and low-risk HPV infection were 24.5%, 19.5% and 8.4%, respectively. A U-shaped age-specific prevalence curve was observed in overall HPV and high-risk HPV, but not in low-risk HPV, which declined with age increasing. The 6 most common high-risk HPV type in descending order, were types 52, 16, 58, 18, 68, and 33. Age and HPV genotype were both important determinants of abnormal cytology incidence, the older women (>45 years) and those infected with HPV type 16 and/or 18 having the highest risk for abnormal cytology. Conclusion: Our findings support the hypothesis that second-generation HPV prophylactic vaccines including HPV-52 and -58 may offer higher protection for women residing in Chaozhou and neighboring cities in Guangdong.

Antibacterial activity of florfenicol composite nanogels against Staphylococcus aureus small colony variants

Liu, Jinhuan,Ju, Mujie,Wu, Yifei,Leng, Nannan,Algharib, Samah Attia,Luo, Wanhe The Korean Society of Veterinary Science 2022 Journal of Veterinary Science Vol.23 No.5

Background: Florfenicol might be ineffective for treating Staphylococcus aureus small colony variants (SCVs) mastitis. Objectives: In this study, florfenicol-loaded chitosan (CS)-sodium tripolyphosphate (TPP) composite nanogels were prepared to allow targeted delivery to SCV infected sites. Methods: The formulation screening, the characteristics, in vitro release, antibacterial activity, therapeutic efficacy, and biosafety of the florfenicol composite nanogels were studied. Results: The optimized formulation was obtained when the CS and TPP were 10 and 5 mg/mL, respectively. The encapsulation efficiency, loading capacity, size, polydispersity index, and zeta potential of the optimized florfenicol composite nanogels were 87.3% ± 2.7%, 5.8% ± 1.4%, 280.3 ± 1.5 nm, 0.15 ± 0.03, and 36.3 ± 1.4 mv, respectively. Optical and scanning electron microscopy showed that spherical particles with a relatively uniform distribution and drugs might be incorporated in cross-linked polymeric networks. The in vitro release study showed that the florfenicol composite nanogels exhibited a biphasic pattern with the sustained release of 72.2% ± 1.8% at 48 h in pH 5.5 phosphate-buffered saline. The minimal inhibitory concentrations of commercial florfenicol solution and florfenicol composite nanogels against SCVs were 1 and 0.25 ㎍/mL, respectively. The time-killing curves and live-dead bacterial staining showed that the florfenicol composite nanogels were concentration-dependent. Furthermore, the florfenicol composite nanogels displayed good therapeutic efficacy against SCVs mastitis. Biological safety studies showed that the florfenicol composite nanogels might be a biocompatible preparation because of their non-toxic effects on the renal tissue and liver. Conclusions: Florfenicol composite nanogels might improve the treatment of SCV infections.