• Journal of Animal Science and Technology
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• 제66권2호
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• pp.251-265
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• 2024

Meat derived from skeletal muscles of animals is a highly nutritious type of food, and different meat types differ in nutritional, sensory, and quality properties. This study was conducted to compare the results of previous studies on the muscle fiber characteristics of major porcine skeletal muscles to the end of providing basic data for understanding differences in physicochemical and nutritional properties between different porcine muscle types (or meat cuts). Specifically, the muscle fiber characteristics between 19 major porcine skeletal muscles were compared. The muscle fibers that constitute porcine skeletal muscle can be classified into several types based on their contractile and metabolic characteristics. In addition, the muscle fiber characteristics, including size, composition, and density, of each muscle type were investigated and a technology based on these muscle fiber characteristics for improving meat quality or preventing quality deterioration was briefly discussed. This comparative review revealed that differences in muscle fiber characteristics are primarily responsible for the differences in quality between pork cuts (muscle types) and also suggested that data on muscle fiber characteristics can be used to develop optimal meat storage and packaging technologies for each meat cut (or muscle type).

• 여성건강간호학회지
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• 제12권1호
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• pp.22-28
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• 2006

Purpose: The purpose of this study was to investigate sex role identity and family group characteristics among university students. Method: The participants of the study were 325 university students at S university in Seoul from September 1st to 30th, 2001 and from September 1st to 30th, 2003. Data were collected using a structured questionnaire, sex role identity scale, and family group characteristics type scale. Data were analyzed by frequency, means, t-test, Chi-square test, and Pearson's correlation in the SPSS Win Program. Result: In this study, there was a high prevalence of androgyny to female(31.9%) and masculinity to male(39.4%) university students. There was a significant difference between male and female students in sex role identity(p=.000). "Family concord" indicated a high mean score of family group characteristics (4.71$\pm$.80). There were significant differences between family group characteristics and masculinity and femininity type. Conclusion: There is a high relationship between family group characteristics and sex role identities of university students. It is necessary to explore the varied aspects of the androgyny concept, and further research is needed on factors of family group characteristics.

• 한국실내디자인학회논문집
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• 제10호
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• pp.3-10
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• 1997

The purpose of this study was to identify and categorize the space use characteristics of the university professor's office. The data were recorded and collected through the physical trace method. Acture Measurement. Photograph, sketch and CAD drawings were used to trace 118 professors offices at Yonse-University. The analysed features were the user characteristics, the size, characteristics of space (such as composition, layout and furniture arrangement), the appliance and the instrument characteristics. To categorize the 'space use' characteristics. 6 variables were used: 1) the territorial characteristics, 2) the spatial relationship between professor's territory and entrance, 3) the layout type of work area, 4) the spatial relationship between professor's and assistant's work area, 5) the arrangement of table, and 6) the completion of sofa set. The results of this study are expected to be used as a basis for the development of design alternatives for the most typical university professors' office.

• 융합경영연구
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• 제11권3호
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• pp.81-92
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• 2023

Purpose: The purpose of this study is to identify the determinants of store occupancy based on the rental characteristics of small and medium-sized enterprises (SMEs) renting buildings across the country, and to analyze the satisfaction level after opening. Research design, data and methodology: The study conducted an empirical survey through questionnaires targeting individual business owners, corporate representatives, and executives and employees nationwide, including Seoul, Gyeonggi, and other metropolitan areas and provincial cities. Results: In this study, the most important factor that SMEs consider when deciding whether to rent a commercial building or office is financial characteristics, followed by management characteristics, location characteristics, building characteristics, and facility characteristics. In addition, management characteristics were found to have the greatest impact on rental satisfaction of SMEs, followed by financial characteristics, building characteristics, and location characteristics in order. Conclusions: Since the lessor cannot immediately improve the location characteristics or building characteristics, in order to increase the rental satisfaction of small and medium-sized businesses in a relatively short period of time, it is necessary to improve managerial characteristics such as prompt civil complaint handling and clean management of the building. In addition, it is analyzed that if the factors that can reduce the burden on the tenants are found in advance and reflected in the financial characteristics, the satisfaction of the tenants can be increased.

• 한국초전도ㆍ저온공학회논문지
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• 제17권3호
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• pp.37-40
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• 2015

Recently, the electrical insulation design for electrical apparatuses is important to cope with the tendency of high voltage. The degradation characteristics of a superconducting coil due to an electrical breakdown should be considered to design a high voltage superconducting coil. In this paper, the degradation characteristics of 2G high temperature superconducting (HTS) wires are studied with respect to electrical breakdown tests. To analyze the dependency of the degradation characteristics of 2G HTS wires, the electrical breakdown tests are performed with AC(alternating current) and DC(direct current) voltage. All tests are performed by applying various magnitudes of AC and DC breakdown voltages. To verify the degradation characteristics of 2G HTS wires, the tests are performed with various 2G HTS wires with respect to stabilizer materials. The degradation characteristics of 2G HTS wires, such as Ic(critical current) and index number are measured by performing electrical breakdown tests. It is found that the characteristics such as Ic and index number can be degraded by an electrical breakdown. Moreover, it is concluded that the degradation characteristics of 2G HTS wires are affected by the stabilizer material and applied voltages. The cross-sectional view of 2G HTS wires is observed by using a scanning electron microscope (SEM). As results, it is found that the degradation characteristics of 2G HTS wires are concerned with hardness and electrical conductivity of stabilizer layers.

• International Journal of Precision Engineering and Manufacturing
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• 제8권1호
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• pp.73-78
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• 2007

The objective of this work was to simulate lead frame etching characteristics to optimize the etching process, Characteristics such as the etching factor and uniformity were investigated for different actual operating conditions, including pressure, distance from the nozzle tip, pipe pitch, and feed speed. The correlation between the etching and spray characteristics was analyzed to develop the etching model. Spray characteristics obtained from an experiment using a phase Doppler anemometer system were then simulated using a Monte-Carlo technique, The etching process model was coded in the Java language, The spray and etching characteristics were correlated with each other and simulated results agreed well with the measured data for a lead frame etching process, The optimal operating parameters under various conditions were successfully determined.

• 한국과학교육학회지
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• 제19권2호
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• pp.194-203
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• 1999

The purpose of this study was to longitudinally analyze Korean students' trend on science-related affective characteristics and provide descriptive data for improving the quality of Korean science education. In this longitudinal study. 3603 students and 4737 students were sampled in elementary and secondary schools. respectively in January 1997 and March 1998. The result showed that students' affective characteristics were decreased with statistical significance(p<0.05) during elementary and junior high school periods. but students' affective characteristics were increased during high school period. Affective characteristics of male were significantly higher than those of females' (p<0.05). Difference on affective characteristics between female and male students was being decreased by increasing grades. Students' affective characteristics in metropolitan areas were significantly higher than those in regional areas and difference between them was increased in 1999 comparing to 1997. The students' affective characteristics in 1999 were lower than those in 1997 totally.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2003년도 ICCAS
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• pp.2217-2220
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• 2003

It is known that an EEG is characterized by the unique and personal characteristics of an individual. Little research has been done to take into account these personal characteristics when analyzing EEG signals. Often the EEG has frequency components which can describe most of the significant characteristics. These combinations are often unique like individual human beings and yet they have an underlying basic characteristics as well. We think that these combinations are the personal characteristics frequency components of the EEG. In this seminar, the EEG analysis method by using the Genetic Algorithms (GA), Factor Analysis (FA), and the Neural Networks (NN) is proposed. The GA is used for selecting the personal characteristic frequency components. The FA is used for extracting the characteristics data of the EEG. The NN is used for estimating the characteristics data of the EEG. Finally, in order to show the effectiveness of the proposed method, classifying the EEG pattern is carried out via computer simulations. The EEG pattern is evaluated under 4 conditions: listening to Rock music, Schmaltzy Japanese ballad music, Healing music, and Classical music. The results, when personal characteristics frequency components are NOT used, gave over 80 % accuracy versus a 95 % accuracy when personal characteristics frequency components are used. This result of our experiment shows the effectiveness of the proposed method.

• 생명과학회지
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• 제19권10호
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• pp.1382-1388
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• 2009

Rubus crataegifolius is a shrub species and is primarily distributed throughout Asia and Europe. We collected 550 representative samples of the eleven populations in Korea to estimate leaf variation within species. The 35 morphological characteristics allowed us to resolve well-supported fixed characteristics and variable characteristics. Sixteen of twenty-three quantitative characteristics and five of twelve qualitative characteristics showed significant differences among populations. We argued that the population differentiation can accounted for the variation in phenetic characteristics such as spine in this species, but were less successful in accounting for variation in other traits. Within a polystatistic leaf structure, their morphological differences could be modulated by ecological pressure such as temperature, altitude, duration of sunshine, and solar radiation. The phenogram showed two distinct clades. One was a group in central Korea and the other was a group in the southern regions of Korea. If morphological characteristics in R. crataegifolius populations reflect their ecological niche, morphology should be regarded with caution as the main criterion for population studies in R. crataegifolius.

• 한국의류학회지
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• 제19권3호
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• pp.416-425
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• 1995

The purposes of this study were to identify buyers' need criteria on product/vendor selection criteria of apparel buyers in department store and to investigate the relatonships among buyers' need criteria, information search behavior, types of buying task and influential factors on buying behavior of buyers(individual characteristics, organizational characteristics, and customer perception characteristics). A questionnaire was developed to measure research subjects based on theoretical study empirically. The questionnaire was administered to 159 apparel buyers of 11 department stores in Seoul. The results of empirical studies were summarized as follows. 1. The need criteria of buyers on product/vendor selection criteria were classified into five types : vendor characteristics; quality characteristics; price characteristics; brand characteristics; product characteristics and the need criteria differed significantly by influencing factors on buying behavior of buyers. 2. There were no relationships between information types and amounts of information search but information types differed significantly by need criteria and individual characteristics 3. Types of buying task were significantly different according to need criteria of buyers and organizational characteristics. 4. Buying policy of department store was significantly different according to organizational characteristics.