• Korean Journal of Ichthyology
• /
• v.31 no.3
• /
• pp.172-177
• /
• 2019

Seasonal fluctuation in abundance and species composition of fish in coastal waters off Dolsan island were investigated using seasonal samples collected by an otter trawl in 2012. A total of 4,848 fishes were sampled and classified into 52 species, 29 families, and 7 orders. The dominant species was Leiognathus nuchalis (2,786 individuals, 57.5%), Amblychaeturichthys hexanema (164 individuals, 3.4%), and Ilisha elongata (141 individuals, 2.9%). The highest number of individuals was found in summer (2,174 individuals), while the lowest number of individuals was found in winter (321 individuals). The diversity index was the highest in spring (H'=3.06) and the lowest in summer and fall (H'=1.77). Temperature was the principal factor to determine the collected number of individuals (r=0.94) and the number of species (r=0.83).

• Convergence Security Journal
• /
• v.17 no.5
• /
• pp.179-186
• /
• 2017

The purpose of this study is to analyze the relation of security officers' martial arts training and job performance. To this end, we conducted surveys on security practitioners. The questionnaire consisted of three variables, "necessity of martial arts training, application to practical security work, improvement of job satisfaction". In this study for reliability analysis, Chronbach's Alpha coefficient was calculated. In order to verify the validity of the measured variables, exploratory factors were analyzed using the Berimax method. Both AVE and CR values of the measured variables were above the reference value of 0.5, indicating that the convergence validity was good. As a result of the hypothesis test, the standardization coefficient is 0.636 for "need for training in martial arts training${\Rightarrow}$practical security work", 0.986 for "practical security work${\Rightarrow}$job satisfaction improving", and the relationship between the two hypotheses is positive(+). In order to improve the job satisfaction of security-related practitioners, it seems necessary to raise the need for martial arts training.

• Journal of the Korea Society of Computer and Information
• /
• v.14 no.9
• /
• pp.167-177
• /
• 2009

As the service quality has been reconsidered in public sector as well as private enterprises, the need for public sectors to adopt principle and practices of private sectors is concerned with customer-focused approach, the different business culture of public service organizations makes it difficult to improve service qualify. Also, Since concept of service contains intangibility, heterogeneity, Simultaneousness and perishability, it makes peoples more difficult to measure service quality. Therefore, this study proposes synthetic Administrative Service duality Index(ASQI) using fuzzy set theory and analytic hierarchy process to evaluate the service qualify in subjective environment. In ASQI model, Fuzzy set theory helps to measure the ambiguity of concepts that are relative to human being's subjective judgement. Also, this study utilizes AHP method to evaluate the preference weights of service quality dimensions (tangibility, reliability, responsiveness, assurance, empathy) for customers.

• Korean Journal of Ichthyology
• /
• v.36 no.2
• /
• pp.129-138
• /
• 2024

This study examines the osteological development of the Pike gudgeon, Pseudogobio esocinus in the cranial, vertebral, caudal, pelvic and pectoral girdle for the purpose of taxonomic and aquacultural studies. Adult Pike gudgeon collected from the Boseonggang River were reared at 18.5~19.5℃ (average 19.0℃). At 5 days after hatching (total length (TL) 4.25 mm), the parasphenoid, dentary, centrum of vertebrae and clavicle began to ossify. At 22 days after hatching (TL 6.33 mm), 36 to 38 vertebrae had ossified. At 42 days after hatching (TL 16.71 mm), the majority of the skeleton had ossified. Pike gudgeon exhibited comparable characteristics to other fishes of Gobionidae throughout its development, although it displayed differences in some areas, such as the caudal skeleton and fin supports.

• Korean Security Journal
• /
• no.12
• /
• pp.149-175
• /
• 2006

The purpose of this study is to understand and analyze the character of Islamic fundamentalism and Middle-Ease Terrorism. The aim of Islamic fundamentalism is reconstruction of Ummah(Muslim Unity), thee early society of Muhammad's age. Islamic movement insist to restore the spirit of Islam and purify the society of Islam from the United State and Western world. Now, Islamic fundamentalism movement as a new ideology, appeals to muslim in the world. The concept of modern national state from the Western countries do not accord with the traditional Islamic principles of reign and a spirit of nationalism. On the other hand, Islamic movement have no legitimacy in the system of modern state which govern the Arab world, regardless of the form of government. For this reasons, Islamic fundamentalist have an insecure position and their political activities. It is yet far from their purpose, to reconstruct the muslim unity, to realize the Islamic political principle close to their practical methods. Yet Islamic fundamental movement have not overcome the system of secular state. The Middle East terrorism supported by government might be eradicated by America's anti-terrorism policy. However, it will be serious and spread all over the world that the terrorist attack against the U. S. and western countries is acted by militant warriors of Islamic fundamentalism, uniting Arab and Islamic people's emotions against America and western countries. There are some reasons that we need to focus on the Arab and Islamic fundamentalism. We need to get out of misunderstanding and discrimination about Islamic religion and culture from America's and Western' standard Which are only their new world order. The discrimination of America and western nations against muslim could make other ideologies, opposite to the world peace. There are a lot of foreign workers from Islam countries in Korea. We need to give consideration and attention to them for the our globalization and world peace. It is time to consider what to do for the nation's profit(economical, political, strategic)with right understanding. We are not safe and free from the terrorism yet.

• Korean Security Journal
• /
• no.48
• /
• pp.235-258
• /
• 2016

The purpose of this study is to find out the effectiveness of the group guidance program using positive psychology for national security related university entrants' psychological wellbeing. This study is to investigate the influence of group guidance program on the increase of psychological well-being of university entrants through active and deliberate program based on the positive psychology. To achieve this purpose, thirty nine students (male 19, female 20) among national security related university entrants were selected and allocated to experimental and comparative groups. Experimental group was nineteen students (male 10, female 9), and comparative group was twenty students (male 9, female 11). Experimental group was divided into two teams (male and female team), and guided by each leader. The group guidance was participated in total ten-week sessions, fifty mins per week. The results were as follows; First, the group guidance program using positive psychology for national security related university entrants' had a positive effect on the students' psychological wellbeing. Second, effects of subordinate factors (autonomy, controling environment, personal growth, positive relations) in comparison in pre and post test of program had an influence very positive or positive, while one factor (purpose in life) didn't show a positive effect.

• Journal of the Korean GEO-environmental Society
• /
• v.15 no.12
• /
• pp.61-69
• /
• 2014

Carboxymethyl-${\beta}$-cyclodextrin (${\beta}$-CMCD), as a biodegradable surfactant with hydrophobic and hydrophilic properties, has potential advantages of being applicable to the simultaneous treatment of multiple contaminated soils. In this study, the desorption behaviors of r adionuclides such as cobalt (Co), strontium (Sr), and cesium (Cs) from the soil contaminated with them were experimentally investigated and the effectiveness of CMCD as a desorbent was evaluated. The desorption equilibrium of used radionuclides could be achieved within 1~3 hr and the desorption ratio from kaolin was higher than that from natural soil. The addition of CMCD of 2 g/L increased the desorption ratio by 5~20 % and the desorption ratio of used r adionuclides was shown in the order of Co > Cs > Sr. The experimental desorption data were fitted successfully by pseudo-second order kinetic model and the desorption rate of the r adionuclides was shown in the order of Cs > Co > Sr. Hysteresis between adsorption and desorption of the r adionuclides, as shown in the order of Sr > Co > Cs, increased as the desorption rate decreased. Consequently, it could be considered that the desorption rate was one of the significant factors of the hysteresis. The addition of CMCD as desorbent increased the amount of desorbed radionuclides and decreased the hysteresis. However, the CMCD could not completely desorb the radionuclides from soils even though the excess of CMCD was added.

• Korean Security Journal
• /
• no.59
• /
• pp.91-108
• /
• 2019

The purpose of this study is to investigate the relationship between the number of first aid training and safety performance. The researcher's questionnaire consisted of three variables: necessity of first aid education, application to security practice, and improvement of job satisfaction. In this study, Chronbach's Alpha coefficients were calculated to measure the internal validity for the reliability of the questionnaire. In order to verify the validity of the measured variables, exploratory factor analysis was carried out using the Berimax rotation method. The mean variance extracted AVE and the conceptual reliability CR value of the measurement result variables were both above the allowable reference value of 0.5 and it was judged to be a good test in terms of intensive validity. As a result of the hypothesis test, the standardization coefficient was 1.106 for 'necessity of first aid education ⇒ applied to security practice work', and 'applied to security work practice ⇒ improvement of job satisfaction' was 1.063 and the relationship of hypothesis 1 hypothesis 2 was significant (+), Respectively. Therefore, in order to increase the job satisfaction of security related workers, it is necessary to support first aid education and to receive first aid education.

• Korean Security Journal
• /
• no.62
• /
• pp.321-346
• /
• 2020

The purpose of this study is to identify the relationship among customer access service, internal response, and consumption behavior of security agency users through a structural model. The research will be meaningful in that it can contribute to the development of the security industry by identifying the importance of customer access service, which is an empirical face of buyers using security agency, and thus establishing the relationship between consumer reaction and consumption behavior. The study subject is a store that uses security agency in areas with dense shopping districts in Cheonan and Asan of South Chungcheong Province, where 375 store representatives and employees were selected to conduct the research. Research tools were modified and used to suit the purpose of the research based on domestic and foreign prior research. Using two statistical programs, SPSS 25.0 and AMOS 25.0, data processing was performed: frequency analysis, exploratory factor analysis, reliability analysis, confirmed factor analysis, and structural model analysis. The statistical significance level was analyzed by setting a value of .05 and the following conclusions were obtained. First, the customer access service of security agency users has a positive impact on consumption behavior. Second, the customer access service of security agency users has a positive effect on the internal response. Third, the internal response of security agnecy users has a positive effect on consumption behavior. Fourth, the internal response has a positive effect as a medium effect between customer access service and consumption behavior of security agency users.

• Journal of the Institute of Electronics Engineers of Korea CI
• /
• v.43 no.4 s.310
• /
• pp.1-14
• /
• 2006

The indirect branch instruction is a most substantial obstacle in utilizing ILP of modem high performance processors. The target address of an indirect branch has the polymorphic characteristic varied dynamically, so it is very difficult to predict the accurate target address. Therefore the performance of a processor with speculative methodology is reduced significantly due to the many execution cycle delays in occurring the misprediction. We proposed the very accurate and novel indirect branch prediction scheme so called data-dependence based prediction. The predictor results in the prediction accuracy of 98.92% using 1K entries, and. 99.95% using 8K But, all of the proposed indirect predictor including our predictor has a large hardware overhead for restoring expected target addresses as well as tags for alleviating an aliasing. Hence, we propose the scheme minimizing the hardware overhead without sacrificing the prediction accuracy. Our experiment results show that the hardware is reduced about 60% without the performance loss, and about 80% sacrificing only the performance loss of 0.1% in aspect of the tag overhead. Also, in aspect of the overhead of storing target addresses, it can save the hardware about 35% without the performance loss, and about 45% sacrificing only the performance loss of 1.11%.