• Journal of Microbiology and Biotechnology
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• 제27권10호
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• pp.1736-1743
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• 2017

Sourdough is made by fermentation of dough by lactic acid bacteria (LAB) and yeast to improve bread properties like volume, flavor, and texture. A Korean traditional sourdough was made by fermenting rice flour with rice wine (makgeolli) and used to make sponge-like bread (jeung-pyun). The aim of this study was to investigate the microbial diversity of makgeolli products and their influence on the organoleptic quality of jeung-pyun. Three commercial makgeolli were tested for jeung-pyun production, with each product exhibiting varied dough swelling rates and organoleptic qualities, and among them, J-product was ranked highest in texture and taste. Microbial analysis of the three makgeolli also showed a big difference in their population and diversity. J-product had the highest LAB and yeast counts, and the predominant species were Lactobacillus casei, Lactobacillus brevis, Leuconostoc pseudomenteroides, and Saccharomyces cerevisiae. Using J-product, sourdough was fermented at $25^{\circ}C$, $30^{\circ}C$, and $35^{\circ}C$, and the microbial growth in and textural properties of jeung-pyun were examined by instrumental and sensory tests. At high temperature ($35^{\circ}C$), the rates of dough swelling and acidification were fast due to rapid microbial growth mainly caused by LAB, resulting in a short leavening time and soft and sour jeung-pyun. Sensory tests showed consumer preference for the soft and mild-sour jeung-pyun. This study shows that LAB in makgeolli play key roles in production of jeung-pyun, influencing the textural and sensory properties. For the production of high-quality jeung-pyun, development of LAB starters with high gas productivity and low acidity and establishment of an optimal fermentation procedure for rice dough are necessary.

• 무역상무연구
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• 제75권
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• pp.159-177
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• 2017

In this paper, we examined trends and regulations of the global medical equipment industry through literature search. The medical equipment industry is attracting attention as a new growth engine in the Fourth Industrial revolution. However, the medical device industry is a highly competitive field due to product diversity, short product life cycle and technological advances. In addition, Medical equipment are related to human health and safety. Therefore, it can only be exported if it is approved by national or international standards. Therefore, from the development stage of the product, the medical equipment should designate the country to be exported and develop a medical equipment that meets the requirements for licensing the medical equipment in the country. Therefore, In this paper, In this paper, we will present the practical considerations of the medical equipment exporting company by examining the global medical equipment market trends and the regulations related to medical equipment in major countries.

• 융합경영연구
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• 제10권6호
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• pp.47-57
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• 2022

Purpose: This study explored the relationship between product characteristics and customer purchase intention in cross-border online shopping. Research design, data, and methodology: Through literature review, the research model of product characteristics and consumers' purchase intention is constructed, and trust is taken as a medium variable. Based on the survey data of Chinese consumers, empirical analysis and hypothesis verification are conducted. This study used SPSS version 21 to confirm the reliability and validity of the research model. To confirm the media effect of the model in this study, the Sobel Test was used. Results: The results of hypothesis identification of this research model showed that 8 of the 11 hypotheses were adopted and 3 were rejected. Results confirmed the relationship between product characteristics (specification, diversity, reputation, novelty, quality) and customer purchase intention. Conclusions: The result from this study had particular theoretical significance for improving the research on cross-border online shopping systems to improve the safety and satisfaction of customers in cross-border online shopping.

• 산업노동연구
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• 제23권1호
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• pp.221-253
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• 2017

본 연구에서는, 기업 경영적 측면에서 청년 고령자 고용상생을 촉진하기 위한 구체적인 실천방안을 제시하고자 하였다. 이를 위해, 세대 간 고용상생을 위해 적극적으로 노력하고 있는 일본 기업의 고용상생 전략과 경영성과를 분석하였다. 경영전략은 인사조직 전략, 생산전략, 기술개발 및 인재육성 전략으로 구분하여 분석하였고, 경영성과는 균형성과평가 모델(BSC)을 활용하여 분석하였다. 청년 고령자 고용상생기업의 경영전략을 분석한 결과, 대부분의 기업에서는 청년 고령근로자의 협업과 유연근무제 도입, 기술개발을 위한 교육 프로그램을 적극적으로 실시하고 있었다. 또한, 균형성과평가(BSC)를 활용하여 경영성과를 분석한 결과, 매출액 증가 및 원가절감(재무 관점), 신규 거래처 증가 및 시장점유율 확대(고객 관점)와 같은 재무적 성과를 달성하고 있는 것으로 나타났다. 또한, 재무적 성과 외에도 제품 및 서비스 품질개선(내부프로세스 관점), 청년 고령근로자의 기술향상(학습과 성장 관점)과 같은 비재무적 성과를 달성하고 있는 것으로 나타났다. 이러한 연구결과를 바탕으로 향후 우리나라 기업의 청년 고령자 고용상생을 실천해 나가기 위한 구체적인 실천방안을 제시하였다.

• 디자인학연구
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• 제17권2호
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• pp.67-76
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• 2004

소비의 주체성이 생산과 구조적 측면보다 쾌적함, 온유함, 유머 등의 디자인 제2차 적 가치의 현상으로 전의 되고 있으며 이와 같은 잉여성과 관련된 개념들은 디자인에서뿐만 아니라 최근 과학에서도 공간과 물질, 동일성과 중력 둥과 같은 개념이 사라지고 불확정성, 개연성, 모순, 애매모호함, 엔트로피 등과 같은 개념들로 대체되고 있다. 따라서 디자인과 관련된 인접학문의 지적동향과 주된 관심사의 탐구과정을 통하여 아이디어 전개에 필요한 그림과 이미지들의 변형과 조작 등 디자인의 제2차 적 가치와 잉여적 가치에 관련이 깊고 실제 아이디어 전개의 확장성과 다의성에 관련된 개념과 변형과 조작의 제4열 사고생성체계를 제시하고 자 한다.

• Journal of Microbiology and Biotechnology
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• 제27권5호
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• pp.916-924
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• 2017

Eighty-five Enterococcus faecalis isolates collected from animals (40 isolates), meju (a Korean fermented soybean product; 27 isolates), humans (10 isolates), and various environmental samples (8 isolates) were subjected to multilocus sequence typing (MLST) to identify genetic differences between samples of different origins. MLST analysis resulted in 44 sequence types (STs), and the eBURST algorithm clustered the STs into 21 clonal complexes (CCs) and 17 singletons. The predominant STs, ST695 (21.1%, 18/85) and ST694 (9.4%, 8/85), were singletons, and only contained isolates originating from meju. None of the STs in the current study belonged to CC2 or CC9, which comprise clinical isolates with high levels of antibiotic resistance. The E. faecalis isolates showed the highest rates of resistance to tetracycline (32.9%), followed by erythromycin (9.4%) and vancomycin (2.4%). All isolates from meju were sensitive to these three antibiotics. Hence, MLST uncovered genetic diversity within E. faecalis, and clustering of the STs using eBURST revealed a correlation between the genotypes and origins of the isolates.

• 한국의류학회지
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• 제38권2호
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• pp.147-160
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• 2014

This study examines the effects of store environment on consumer commitment to department stores and the differences among department stores. A self-administered questionnaire was developed based on existing scales in the literature and the result of qualitative research. The survey was conducted on 500 female consumers in their 20s to 40s in Seoul, Incheon and Gyeonggi areas in Korea. Data were analyzed using descriptive statistics, factor analysis, ANOVA, and regression analysis via SPSS Win 16.0. The results were as follows: First, three department stores revealed statistically significant differences in the diversity of facilities, store atmosphere, locational convenience and policy. Second, affective commitment to department stores was affected by salesperson service, policy, diversity of facilities, product assortment, store atmosphere and locational convenience. Calculative commitment in department stores was affected by policy, diversity of facilities, store atmosphere and locational convenience. There were also significant differences on store environmental factors that influence affective commitment and calculative commitment among department stores.

• Journal of Microbiology
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• 제41권4호
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• pp.327-334
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• 2003

This study employed two PCR-based 16S rDNA approaches, amplified rDNA restriction analysis (ARDRA) and denaturing gradient gel electrophoresis (DGGE), to characterize the bacterial community structure in groundwater. Samples were collected from groundwater for the use by private residences, as well as for industrial and agricultural purposes, in Ansan City. Each PCR product was obtained by PCR with eubacteria 16S rDNA and variable V3 region specific primer sets. After amplification, the 16S rDNA PCR products were digested with 4-base site specific restriction endonucleases, and the restriction pattern analyzed. The genetic diversity and similarity of the groundwater bacterial community was analyzed by eubacteria universal primer sets for the amplification of variable V3 regions of the bacterial 16S rDNA. The result of the bacterial community analysis, by ARDRA and DGGE, revealed the same pattern. The highest diversity was found in groundwater from site G1, which was used in residences. In the DGGE profile, a high intensity band was sequenced, and revealed to be Pseudomonas sp. strain P51.

• 벤처혁신연구
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• 제6권3호
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• pp.221-240
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• 2023

초고령사회를 목전에 둔 한국사회 시니어층은 길어진 수명과 행복한 노후를 위해 든든한 자산관리가 중요해지고 있다. 이러한 시점에서 본 연구는 시니어의 금융 기관 자산관리(wealth management) 서비스 이용 만족도에 영향을 미치는 요인에 대해 실증 분석을 하였다. 독립변수로는 상품의 다양성, 수익성, 안정성, 종업원의 전문성, 문제 해결 능력, 고객 지향성과 더불어 물리적 환경, 프로세스, 상속 서비스, 신탁 서비스를 설정하였다. 이를 위해 본 연구에서는 설정된 연구 모형을 토대로 가설 검정을 하기 위해 실증적 분석을 실시했다. 설문조사는 금융기관의 자산관리 서비스를 이용하고 있는 시니어를 대상으로 하였으며 최종적으로 250개를 통계분석에 활용하였다. 이를 토대로 위계적 회귀분석 방법으로 실증 분석을 하였다. 실증 분석 결과는 다음과 같다. 상품 안정성과 수익성, 종업원의 문제 해결 능력과 고객 지향성, 프로세스, 상속 서비스 및 신탁 서비스는 시니어의 금융기관 자산관리 서비스 이용만족도에 유의한 정(+)의 영향을 주는 것으로 나타났다. 하지만 상품 다양성 및 종업원의 전문성, 물리적 환경과 이용 만족도 간에는 유의한 영향 관계가 검정되지 않았다. 유의한 영향을 미치는 요소 중에서 영향력의 크기는 종업원의 고객지향성, 문제해결능력, 신탁서비스, 상품 안정성, 상속 서비스, 상품 수익성, 프로세스 순으로 나타났다. 이러한 연구 결과를 바탕으로 학술적 및 실무적 시사점을 제시하였다.

• 산업경영시스템학회지
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• 제44권3호
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• pp.22-32
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• 2021

To meet rapidly changing market demands, manufacturers strive to increase both of productivity and diversity at the same time. As a part of those effort, they are applying flexible manufacturing systems that produce multiple types and/or options of products at a single production line. This paper studies such flexible manufacturing system with multiple types of products, multiple Bernoulli reliability machines and dedicated buffers between them for each of product types. As one of the prevalent control policies, priority based policy is applied at each machines to select the product to be processed. To analyze such system and its performance measures exactly, Markov chain models are applied. Because it is too complex to define all relative transient and its probabilities for each state, an algorithm to update transient state probability are introduced. Based on the steady state probability, some performance measures such as production rate, WIP-based measures, blocking probability and starvation probability are derived. Some system properties are also addressed. There is a property of non-conservation of flow, which means the product ratio at the input flow is not conserved at the succeeding flows. In addition, it is also found that increased buffer capacity does not guarantee improved production rate in this system.