• Nuclear Engineering and Technology
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• v.48 no.1
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• pp.200-210
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• 2016

The neutron radiography reactor (NRAD) is a 250 kW Mark-II Training, Research, Isotopes, General Atomics (TRIGA) reactor at Idaho National Laboratory, Idaho Falls, ID, USA. The East Radiography Station (ERS) is one of two neutron beams at the NRAD used for neutron radiography, which sits beneath a large hot cell and is primarily used for neutron radiography of highly radioactive objects. Additional fuel elements were added to the NRAD core in 2013 to increase the excess reactivity of the reactor, and may have changed some characteristics of the neutron beamline. This report discusses characterization of the neutron beamline following the addition of fuel to the NRAD. This work includes determination of the facility category according to the American Society for Testing and Materials (ASTM) standards, and also uses an array of gold foils to determine the neutron beam flux and evaluate the neutron beam profile. The NRAD ERS neutron beam is a Category I neutron radiography facility, the highest possible quality level according to the ASTM. Gold foil activation experiments show that the average neutron flux with length-to-diameter ratio (L/D) = 125 is $5.96{\times}10^6n/cm^2/s$ with a $2{\sigma}$ standard error of $2.90{\times}10^5n/cm^2/s$. The neutron beam profile can be considered flat for qualitative neutron radiographic evaluation purposes. However, the neutron beam profile should be taken into account for quantitative evaluation.

• Annual Conference on Human and Language Technology
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• 2015.10a
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• pp.202-205
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• 2015

개체명 인식은 문서에서 개체명을 추출하고 추출된 개체명의 범주를 결정하는 작업이다. 기존의 지도 학습 기법을 이용한 개체명 인식을 위해서는 개체명 범주가 수동으로 부착된 대용량의 학습 말뭉치가 필요하며, 대용량의 말뭉치 구축은 인력과 시간이 많이 들어가는 일이다. 본 논문에서는 학습 말뭉치 구축비용을 최소화하고 초기 학습 말뭉치의 노이즈를 제거하여 말뭉치의 품질을 향상시키는 방법을 제안한다. 제안 방법은 반자동 개체명 사전 구축 방법으로 구축한 개체명 사전과 원거리 감독법을 사용하여 초기 개체명 범주 부착 말뭉치를 구축한다. 그리고 휴리스틱을 이용하여 초기 말뭉치의 노이즈를 제거하여 학습 말뭉치의 품질을 향상시키고 개체명 인식의 성능을 향상시킨다. 실험 결과 휴리스틱 적용을 통해 개체명 인식의 F1-점수를 67.36%에서 73.17%로 향상시켰다.

• Journal of the Korean Home Economics Association
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• v.40 no.10
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• pp.33-48
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• 2002

The purpose of this study guides them to the needs of leave preparation and material methods for self- examination and social adaptation so that they may live their remaining time in residental care better, and that execute preliminary training to improve their qualities for healthy family lives in the future. The program of this study was tested on 8 adolescents at their high school ages selected from an orphanage in Seoul. The effect of the program was determined by the quantity evaluation with a statistical analysis(ANCOVA) and also by the quality evaluation that requires interviews. Here is the summary of the result of leave preparation program; Firstly, the leave preparation program was effective on finding self-identity, psychological welfare and personal relationship. Secondly, The program helped them recognize that their own personalities, growing-up circumstances and family in root influenced on their self-understanding and growth. Most of the subjects said they accepted these factors in an affirmative way. Thirdly, the program gave a positive effect on their views of social adaptation and family formation after leave.

• Archives of design research
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• v.15 no.3
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• pp.127-136
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• 2002

Existing design education in industrial highschool is heavily dependent on formal education, which is far from teaching practical technique. In other words, Current curriculum of industrial highschool is going all out to place emphasis on the necessity of design education and ignores its failures or problems. Factually, although students of industrial high school should procure training in basic skills that they will need to quality for good jobs in later life, there don't put into practice substantial education. Accordingly, this study will develope Supplementary Class for substantial and effective design education in industrial highschool on the focus of proper technical education which domestic companies need. Especially, the researcher selected web design education which is favored the most by companies in information society, which is adopting as a required course in industrial highschool.

• The Korean Journal of Emergency Medical Services
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• v.18 no.3
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• pp.19-35
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• 2014

Purpose: This study aimed to improve the quality of prehospital emergency care for elderly patients by determining current prehospital care status based on run sheets and level of knowledge, and prehospital care confidence toward the elderly through questionnaires answered by 119 emergency medical technicians (EMTs). Methods: This study was conducted with 4,946 elderly patients who were transferred to the hospital by 119 ambulances in D city from March 1, 2013 to February 28, 2014. This study was a descriptive study of 119 run sheets. The questionnaire was completed by 160 EMTs working in D city. All data were analyzed by using SPSS 21.0. Results: 74.2% was due to disease among the 4,946 elderly patients who were transferred by 119 ambulances, and a rest was due to injury. The mean knowledge score of the 119 EMTs regarding elderly patients was low. Their confidence on prehospital care of the elderly patients statistically significantly differed according to career at hospital and education. Conclusion: Theoretical knowledge, education on prehospital care of the elderly, and repeated technical prehospital care education and training accompanied by feedback assessment by 119 EMTs are needed.

• Journal of Navigation and Port Research
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• v.37 no.4
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• pp.359-366
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• 2013

The objective of the research was to study the determinants affecting the decision to study nautical science program within a Thai maritime institute in preparation for working post-graduation as a ship officer on a merchant ship. The samples are classified by institute, academic year, cumulative score level, domicile, and parent's monthly income. The total sample of study was 386 Thai merchant marine students. The data collection method was a one to five rating scale questionnaire. The statistical methods applied in analyzing the data were percentage, mean, standard deviation, t-test, one way analysis of variance and a Sheffe's test. The study shows seven factors that influenced the decision in descending order; expectations, tuition and scholarships, selection system, quality of the institute, background and private capability, generality of the institute and external influences on the decision. The decision to select an institute was classified by institute and revealed that different institutes had distinct determinants that led to the decision. The students were from The Merchant Marine Training Center and from The International Maritime College, Kasetsart University were differences. There were no dissimilarity between academic year, cumulative score level, domicile, and parent's monthly income.

• Journal of Information Technology Services
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• v.16 no.1
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• pp.27-39
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• 2017

Lately, there is a worldwide boom for start-ups. This trends has led to develop many policies for entrepreneurship in Korea, which focused on college education. Also, as the forth industrial revolution knows no borders, demands of software early education are expanding in line with strong interests in IT (Information Technology). Information technology is now an essential competency for all professionals who need creative thinking. And entrepreneurs are a representative job that requires creative thinking. This study suggests IT competencies-IT planning competencies (ITPC) and IT development competencies (ITDC)-as a core factor of the entrepreneurial intention. This paper is to study the relationship between IT competencies and entrepreneurial Intention. So we investigated IT competence and entrepreneurial intention in university students with a questionnaire. The results of this empirical study can be summarized as follows. First, IT planning competencies have positive influence on entrepreneurial attitude and intention. But IT development competencies do not influence directly on entrepreneurial intention. Second, entrepreneurial attitude have mediating effects in the relationship between IT planning competencies and entrepreneurial intention. So, we need to develop good contents related to the IT planning capabilities when organizing training programs in start-up course. In order to improve the quality of entrepreneurship education, it will be necessary to develop educational contents that can have a broad perspective for understanding the trends of technology convergence and creating opportunities.

• Journal of the Korean Institute of Intelligent Systems
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• v.14 no.3
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• pp.290-297
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• 2004

The control laws for cart-pole system are studied to see the schemes on which the control laws are made. Also, the odd symmetry of the relation between the output of the control laws and the system state vector is observed. Utilizing the symmetry in quantizing the system state variables and implementing the control laws into look-up table is discussed. Then, a CMAC is trained for a nonlinear control law for a cart-pole system such that the symmetry is conserved and its learning performance is evaluated. It is found that utilizing the symmetry is to reduce the memory requirement as well as the training period while improving the learning quality in terms of preserving the symmetry.

• Journal of Power Electronics
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• v.13 no.6
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• pp.1058-1069
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• 2013

This paper proposes and designs a new output filter called an LCFL filter for application to three phase three wire shunt active power filters (SAPF). This LCFL filter is derived from a traditional LCL filter by replacing its capacitor with a C-type filter, and then constructing an L-C-type Filter-L (LCFL) topology. The LCFL filter can provide better switching ripple attenuation capability than traditional passive damped LCL filters. The LC branch series resonant frequency of the LCFL filter is set at the switching frequency, which can bypass most of the switching harmonic current generated by a SAPF converter. As a result, the power losses in the damping resistor of the LCFL filter can be reduced when compared to traditional passive damped LCL filters. The principle and parameter design of the LCFL filter are presented in this paper, as well as a comparison to traditional passive damped LCL filters. Simulation and experimental results are presented to validate the theoretical analyses and effectiveness of the LCFL filter.

• International Journal of Industrial Entomology and Biomaterials
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• v.29 no.1
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• pp.128-134
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• 2014

Nesolynx thymus Girault (Hymenoptera: Eulophidae) is one among 20 hymenopteran parasitoids reported to attack the uzi fly, Exorista bombycis, which in turn infests the silkworm, Bombyx mori accounting a cocoon yield loss of 10-20%. A host of factors viz., age and size of host, age and size of parasitoid, availability of host, temperature and quality of host are reported to influence the reproductive efficiency of the parasitoids. In the present study an attempt was made to record the influence of foraging parasitoid density on their reproductive performance. Three day-old uzi pupae were offered to varying numbers (1 - 10) of 2 day old Nesolynx thymus adults for parasitization. The progeny production per pupa (84.44 - 132.77) increased significantly with increase in the number of foraging parasitoid adults (1 - 10) however, progeny production per female decreased. The sex ratio (M : F) (1:25.49 - 1:1.53) decreased significantly with increase in foraging parasitoid adults. The morphometric parameters except female abdomen width of first generation parasitoid showed significant negative correlation with number of foraging adults. However, correlation between the parasitoid size in first generation and their reproductive performance was nonsignificant.