The most effective way to control plant parasitic nematodes are immersed in hot water, but the larger-scale processing is difficult to adjust a target processing temperature. Thermal equilibrium formula used to fit the processing temperature was very accurate and effective. Use of the thermal equilibrium formula was determined to be well suited on commercial scale(1400L volume chamber) hot water immersion treatment that should be quickly processed. 1000L of water based on 10%(111kg), 12%(136kg), 15%(176kg) filling ratio was applied in 48oC for 30min treatment and only 10%, 12% filling ratio was applied in 49oC for 10min. In 10% filling ratio, thermal equilibrium has been proceeding rapidly in 1-2 min, and no juvenile hatched in all treatments(at 48oC for 30min, at 49oC for 10min). In 12% filling ratio, though thermal equilibrium has been proceeding in 2 min, few juveniles were hatched in boundary temperature at 49.0oC. In 15% filling ratio, it took 7-8 minutes to reach thermal equilibrium after dipping. The result of applying the two treatment conditions(at 48oC for 30min, at 49oC for 10min) to commercial scale field experiment showed nematodes were almost completely eliminated in hooker chive roots. However, some of living nematodes were observed in 15% filling ratio treatment.

This study investigated spelling errors in English stories written by 206 students in an elementary school implementing Korean/English immersion education. Errors were analyzed using crosstab and MANCOVA. Findings are as follows. Spelling errors occurred in 4 categories in order from the most frequent to the least: substitution, omission, addition, and transposition. The error occurrences differed depending on grade level changes: lower grades (Grades 1-3) vs. higher grades (Grades 4-6). The students in both grade levels made more errors in substitution and omission: these error types were significantly decreased as they progressed to the higher grade levels. Errors in addition and transposition showed much fewer occurrences for both grade levels, and these errors did not show a significant decrease because of their rarer occurrences. Overall, the students’ spelling ability increased remarkably as they progressed in grade levels in the immersion environment.

밤재배원에서 발생하는 밤바구미를 물리적으로 방제하기 위하여 침지처리 온도 및 시간별로 유충에 대한 방제효과와 밤 종실에 미치는 성 분변화 등을 조사하였다. 밤 종실내의 밤바구미 유충을 방제하기 위하여 다양한 온도조건(30, 35, 40, 45, 50℃)과 시간별(1, 2, 3, 5, 7, 10, 15, 22, 24시간)로 처리하여 방제활성을 조사하였다. 침지처리에 의한 밤 종실의 변화 조사로는 밝기(lightness), 적색도(redness), 황색도(yellowness) 등의 색도의 변화와 발아율, 부패율과 같은 생리적 변화, 경도(hardness)와 같은 물리적 변화, 수분함량과 유리당, 탄닌과 같은 성분변화를 조사 하였다. 침지처리를 이용한 밤바구미 유충의 방제 효과는 30℃에서 2시간 후부터 70%이상의 살충효과를 보였으며, 7시간 후부터는 100% 방제 효과를 보였다. 40℃에서는 2시간 후부터 90%의 효과를 보였으며, 45℃ 이상에서는 침지 처리 1시간 후부터 90%이상의 살충효과를 나타내었 다. 밤 종실에 대한 색도의 변화는 30℃와 35℃에서는 큰 유의차가 없었으나 40℃ 이상의 온도에서는 시간이 증가할수록 밝기, 적색도, 황색도 에 영향을 미쳤다. 발아율의 경우 침지처리에 대한 영향은 크지 않은 것으로 조사되었으나, 40℃ 이상의 온도조건에서는 침지시간이 증가할수록 부패율이 증가하는 것으로 조사되었다. 경도는 온도와 침지처리 시간이 증가할수록 감소하였다. 침지처리에 의한 종실 성분의 변화는 온도와 침 지처리 시간이 증가할수록 유리당함량이 감소하였다. 이상의 결과들은 적절한 온도와 시간조건에서의 침지처리가 밤바구미 유충 방제에 효과적 이며, 밤 종실의 상품성에도 큰 영향을 미치지 않음을 보여주었다. 따라서 본 연구결과는 밤 종실의 침지조건을 선별하는데 기초자료로 사용될 수 있을 것으로 기대된다.

The 2013 Korean Gaming White Paper suggested that the mobile gaming market has a potential for the future value realization. The market of mobile games exploded by 89.1% compared to 2011 and the market share almost doubled. With higher infiltration and performance enhancement of the mobile devices, accompanied by the growth in the mobile advertisement market, fueled the development of the relevant infrastructure and the business model, which is the basis of our anticipation on the gaming industry to grow further. Unlike the weight it carries in our society, the literatures in the field of mobile games are scarce, which is why we conducted this study. In this study, we will focus on the characterizing factors of the mobile game and their relationship with immersion in order to identify with proofs the intent of their users for continued, repeated usage of the mobile games using statistical methods. The purpose of this study is to identify the characterizing factors of the mobile games that affect the intent for repeated usage and immersion, with a view to contribute to the development of the mobile games and the mobile gaming industry. The result of the evidentiary analysis revealed that the internal and external factors of the mobile games did have positive impacts on immersion into them, and the immersion into the game positively affected the intent for repeated usage. In addition, we examined the differences between genders in terms of the influence from the characterizing factors onto immersion, which revealed statistically significant differences between the genders and was reflected in our consideration on the implication of this study.

Recently, the online and mobile game markets are enjoying a boom due to the wide use of the smartmedia, while the traditional video games have lost their popularities. While the use of the smartmedia based game increased, the game development companies participated directly in the circulation through the app market or the social platform. And, the competition of the related companies is expanded to the IT industry and SNS provider. As the success of the casual game led the development of online game industry, the social network game leads the development of mobile game industry along with the appearance of the smartmedia. In this paper, we analyze the key to success of the casual game represented by the Maple Story and Kart Rider and the social network game represented by the Anipang and Dragon Flight. From that, we drew the key to success that must have the succeeded game from the immersion view and we can provide some valuable strategies to the game company to succeed with the social network game.

Today, the modification of carbon foam for high performance remains a major issue in the environment and energy industries. One promising way to solve this problem is the optimization of the pore structure for desired properties as well as for efficient performance. In this study, using a sol-gel process followed by carbonization in an inert atmosphere, hollow spherical carbon foam was prepared using resorcinol and formaldehyde precursors catalyzed by 4-aminobenzoic acid; the effect of carbonization temperature and re-immersion treatment on the pore structure and characteristics of the hollow spherical carbon foam was investigated. As the carbonization temperature increased, the porosity and average pore diameter were found to decrease but the compression strength and electrical conductivity dramatically increased in the temperature range of this study (700˚C to 850˚C). The significant differences of X-ray diffraction patterns obtained from the carbon foams carbonized under different temperatures implied that the degree of crystallinity greatly affects the characteristics of the carbon form. Also, the number of re-impregnations of carbon form in the resorcinol-formaldehyde resin was varied from 1 to 10 times, followed by re-carbonization at 800˚C for 2 hours under argon gas flow. As the number of re-immersion treatments increased, the porosity decreased while the compression strength improved by about four times when re-impregnation was repeated 10 times. These results imply the possibility of customizing the characteristics of carbon foam by controlling the carbonization and re-immersion conditions.

The present study aims to examine the realization of language immersion education for FLE (Français Langue Étrangère) and CLE (Coréen Langue Étrangère). Foreign Language teachers’ role has been recently concerned as to find out the interaction between a teacher and a learner in language immersion education. The success of language immersion education depends on the learners’ attitudes and motivation. The learners’ motivation can be enhanced through the electronic sources online made by the nonnative language teachers or through the extra-curricular language activities. The findings of the present study are summarized as follows. First, the teachers must perceive learners’ first language and culture to accomplish a successful interaction. Second, the foreign language policy should favor not only English, but also other various languages as well. Third, the feedback through the self-evaluation should be followed by its purposes and types.

본 연구는 정밀여과용 Chlorinated Polyvinyl Chloride (CPVC) 평막의 화학약품 수용액 내에서 경과시간에 따른 내화학성을 측정하기 위하여 실시하였다. 화학약품으로는 막 세정에 주로 사용되는 유효염소 0.5 wt% NaClO 수용액과 산성인 HCl 1 wt%, pH 4 수용액 그리고 알카리인 NaOH 4 wt%, pH 10 수용액을 사용하였다. 이상의 수용액중에 CPVC 분리막을 1일, 3, 5, 10일 동안 5, 25, 50℃에서 침지시킨 후, 각각의 인장강도와 파단시 신장율을 측정하여 내구성을 평가하였다. 막 세정시 주로 사용되는 유효염소 0.5 wt% NaClO 수용액의 경우 5℃ 조건에서는 인장강도 변화는 5% 이내이지만 25, 50℃에서는 17%까지 감소하였다. CPVC 분리막의 내화학성은 산성인 HCl 1 wt%와 pH 4 수용액에서 우수하였으나 NaOH 4 wt% 수용액에 대해서 가장 취약한 것으로 나타났다.

This paper is to investigate the effect of the immersion time in the traditional hairtail hand line for developing the fishing methods and the fishing gear in the coast of jeju. The operating of 32 times was made with each different immersion time of hairtail hand line, and the relations between the catch and the immersion time were examined. As the result, targeted species rate was over 98% of total catch. From about 800 seconds after casting, the hooking rate was decreased and the bite loss rate was increased, it seems to be made by the decreasing factors of predators including the cutting of branch lines etc. In addition, it was supposed that the hooking rate and the bait loss rate had a deep connection with feeding time zone. The level of the correlation coefficient of the bait loss rate according to the immersion time was 0.54 at p≤0.01, in the case of the hooking rate, 0.59 was chosen after about 800 seconds. The hooking rate and the bait loss rate according to the hook number were not irrelevant to the fish school layer. Additionally, it was assumed that the bait loss rate was related to the depth of water.

본 연구의 목적은 정보통신윤리의 영어 몰입수업에 대한 효과， 학습자의 반응 분석， 영어 몰입수엽의 문제점을 찾아 그 대응책을 모색하는 것이다. 연구는질적인 연구의 한 방법인 사례연구법에 의해 실시되었다. 데이터 수집은 연구자의 자기 평가와 학생들의 수엽 만족도 조사표의 응답 결과 그리고 태국 AIV 활동에서 함께 활동하였던 2 명의 교사들 평가를 반영하였다. 수업만족도 조사표로IACE 에서 개발하였으며， 선다형 10문항， 개방형 1 문항으로 작성되었다초등학교 5-6 학년 학생 20 명을 대상으로 시범수업으로 정보통신윤리의 영어몰입수엽 후 학생들의 수엽만족도 조사표에서 영어 몰입수엽은 효과가 있으며 학생들의 반응도 매우 긍정적이었다. 드러난 문제점으로 교사의 학생들 수준에 맞는 의사소통 능력의 부족， 고차원적인 사고 유도의 부족， 수업 중 학생들이 협력할 기회의 제공이 부족， 학생들의 의견 청취와 학생 중심의 수업 부족 등이었다.연구의 결론은 첫째， 정보통신윤리의 영어 몰입수업은 효과가 있었다. 둘째， 학생들의 반응은 매우 긍정적으로 나타났다. 셋째 정보통신윤리의 영어몰입수업에서교사의 철저한 수업계획과 자기 점검이 필요하다는 것이다.

The principal objective of this study was to determine how the internal marketing of the contract foodservice management company affects job satisfaction and organization immersion, as well as the influence of the satisfaction of internal customers (employees) has on job satisfaction and organization immersion, and the function as a preceding variable that improves service quality. T-test, ANOVA, and linear regression analysis was conducted to analyze the hypotheses of the study. The summary of study as per the result of this corroborative study is presented as follows: It was verified that internal marketing affects organizational immersion and the job satisfaction of employees, and job satisfaction plays a crucial role in organizational immersion. Moreover, it was also confirmed that the higher the internal marketing is, the higher the job satisfaction and organization immersion will be, thereby improving the service quality provided by employees. If enterprise regards employees as internal customers and constantly and efficiently conducts internal marketing activities such as internal communication, training, welfare, compensation, delegation of power, supporting the management, etc, the organizational immersion and job satisfaction of employees will be heightened, thereby enhancing loyalty and pride in the organization to provide services with better quality.

This study explores an exemplary case of an English immersion program originally initiated by some primary school teachers. It investigates how an immersion education was initiated by the members of an English teachers" study group and later supported by a provincial office of education. The contents of the program and the three examples of immersion classes are briefly illustrated and commented. The innovative endeavors for the successful execution of the immersion classes include the use of the daily morning English practice and various ways of exposing students to English. It was found from the interview conducted with 5 immersion teachers that the strong motivation of the immersion teachers was the first empowering factor for this program and the appropriate financial and administrative help from the provincial office of education was another crucial one. Several practical problems from implementing the immersion program are also reported. From these results and findings some suggestions are made for better ways for implementing immersion programs in elementary schools.

아스팔트 혼합물의 수분손상은 물의 침투로 인해 아스팔트 피막과 골재 사이의 부착력이 손실되면서 발생하는 현상으로서, 이는 아스팔트 포장의 주요 파손형태 중 하나인 포트흘의 주요원인으로 알려져 있다. 이에 본 연구는 반복적인 수침에 의한 수분손상이 일반 아스팔트 혼합물의 재료물성에 미치는 영향을 평가하고자 수행하였다. 이를 위해 기존의 수분손상 시험법인 수정 라트만 시험의 수분 동결-응해 방법을 반복적으로 적용한 일반 아스팔트 혼합물을 대상으로 간접인장시험에 의한 상온물성의 변화특성을 평가하였다. 이를 통해 일반 아스팔트 혼합물의 상온물성은 수침횟수의 증가에 따라 초기에는 급격하게 감소하다가 이후 완만한 감소추세를 나타내었으며, 초기 수분손상에서 물성값의 약 50% 이상이 손실되는 것으로 관측되었다. 또한 파괴시점을 고려한 아스팔트 혼합물의 조기 수분손상 특성을 파악하는데, 25℃의 파괴 에너지와 크리프 변형 에너지를 이용한 재료물성의 손상비가 가장 높은 상관성을 나타내는 것으로 평가되었다.