• The Journal of Korean Society for School & Community Health Education
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• v.12 no.2
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• pp.13-27
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• 2011

Objectives: This study aims to analyze recognition and problems of in Daegu local college students on sexual violence and figure out major factors to prevent sexual violence and to use as necessary basic resources for the improvement of individual and social recognition and effective sexual education. Methods: The Data from 255 students (85%) out of 300 excluding questionnaires with insufficient answers were under analysis using Excel Program and SPSS Win 17.0 for cross-tabulations and correlation analysis. Significance test were performed using $x^2$-test. Results: 1) As to recognition of sexual violence by gender, 88.2%(60) of male and 91.4%(171) of female students conceived the current sexual violence level is hazardous which shows female students had slightly higher recognition. 2) As to recognition of sexual education by gender, both conceived it for equipping proper value system of sex(55.9% of male & 61.5% of female student). 3) As to prevention and coping with sexual violence by gender, 58.8% of male students and 65.2% of female students answered that prevention is possible. 4) As to the correlation between sexual violence factors, it showed positive (+) correlation in the experience of sexual education and the recognition of sexual violence level, in the recognition of sexual violence level and the recognition of sexual violence responsible scope, and in the possibility of sexual violence prevention and the recognition of sexual crime prevention law. 5) As to the recognition and measurement by experience of sexual education, among those who answered the current sexual violence level was hazardous 91.8% had previous sexual education experience and 83.3% had no experience. 6) As to the recognition and measurement of sexual violence by experience of sexual violence (self-determination), those with sexual education experience (79.8%) had little experience in sexual violence than those with not (91.6%). 7) As to the recognition and measurement of sexual violence by the possibility of preventing sexual violence, it showed statistically significant difference in the reason of increase of sexual violence(p<0.01). Conclusions: Accordingly, to provide systematic and sustainable sexual education, individualized education considering gender, individual development rather than standardized group education in its teaching method is necessary, and follow-up evaluation and feed-back system should be implemented to assess achievement and recognition of sexual education.

• Journal of the Korean Society of Fisheries and Ocean Technology
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• v.27 no.4
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• pp.278-285
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• 1991

The authors propose to use the slot system in order to improve of the efficiency for the cambered otter boards. The experiment is divided into 2 parts, one is the efficiency model test, and the other is the visualization model test. The hydrodynamic characteristics of the model otter boards were tested by efficiency model test to measure the shearing, drag force of the models and visualization test using hydrogen bubble method to observe the streak-line and time-line of flow around the models, and milk spout method to observe the separation zone in the wake behind the models. This study tested for 5 models such ad without slot, slot position 0.2C, 0.4C, 0.6C and 0.8C. The results obtained are as follows: \circled1 The maximum C sub(L) of model otter board with slot position 0.6C in attack angle 27$^{\circ}$ was the highest of all models, it's value was 1.59. \circled2 In general, the L/D ratio of the one slot otter boards were 16~28% higher than otter board without slot. \circled3 The slot position 0.6C was better than any other slot position, and it's conformed by visiualization. \circled4 As to the model otter board with slot position 0.6C, flow speed of the back side was faster 1.3 to 1.7 times than in the front side. \circled5 The size of the separated zone in case of the model otter board with 0.6C was smaller than that of any other models.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.8
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• pp.3500-3512
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• 2012

The purpose of this study is to conduct a comparative analysis of health behaviors, health status, and health care utilization by the homeland of the internationally married women immigrants living in Korea. The subjects of this study were 171 married women immigrants who are registered at 7 multicultural centers in Chungbuk province. The study was conducted from September 2010 to November 2010 by surveying them with structured questionnaires translated in 7 different languages. In health behaviors the results indicated that there were statistically significant differences in high intensity exercise, walking, weight control, and the number of times having breakfast per week depending on the subject's homeland. In health status, there were statistically significant differences in low back pain incidence and obesity rate by the subject's homeland. In health care utilization, the subjects revealed statistically significant differences in utilizing health screening, in selecting primary medical institutes, and in the reasons for avoiding medical institutes depending on the subject's homeland. Health promotion policies that take the results of this research into account would provide suitable health care services for internationally married migrant women.

• Journal of KIISE:Databases
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• v.33 no.1
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• pp.69-85
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• 2006

Broadcast has been often used to disseminate the frequently requested data efficiently to a large volume of mobile clients over a single or multiple channels. Conventional concurrency control protocols for mobile transactions are not suitable for the wireless broadcast environments due to the limited bandwidth of the up-link communication channel. In wireless broadcast environments, the server often broadcast different data items with different frequency to incorporate the data access patterns of mobile transactions. The previously proposed concurrency control protocols for mobile transactions in wireless broadcast environments are focused on the mobile transactions with uniform data access patterns. However, these protocols perform poorly when the data access pattern of update mobile transaction are not uniform but skewed. The update mobile transactions with skewed data access patterns will be frequently aborted and restarted due 4o the update conflict of the same data items with a high access frequency. In this paper, we propose an energy-efficient concurrence control protocol for mobile transactions with skewed data access as well as uniform data access patterns. Our protocol use a random back-off technique to avoid the frequent abort and restart of update mobile transactions. We present in-depth experimental analysis of our method by comparing it with existing concurrency control protocols. Our performance analysis show that it significantly decrease the average response time, the amount of upstream and downstream bandwidth usage over existing protocols.

• Korean Journal of Legislative Studies
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• v.22 no.2
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• pp.5-52
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• 2016

Several criticisms notwithstanding, the major political parties in South Korea seem to have developed relatively coherent 'collective identities' with regard to the unification question between South and North Korea. A comparative analysis in this paper reveals a certain pattern of convergence and divergence in unification policies among major parties. First, diachronically, the two major political parties in the history of South Korea, which I call for simplicity "conservative parties" and "democratic parties" respectively, have converged into allelosubjective attitudes towards North Korea since President Park Chung-hee's proclamation of peaceful unification plan in 1970. The governments of conservative parties since then promoted allelosubjective relations between South and North Korea, which the governments of democratic parties succeeded and developed into a partial integration policy. Though the succeeding governments of conservative parties of Lee Myung-bak and Park Geun-hye seem to have stepped back from the allelosubjective attitudes, seemingly they have not yet withdrawn to the monosubjective stance before 1970. Next, synchronically, an analysis of the platforms of major parties and their campaign promises in the 20th general election in 2016 reveals converging and diverging points in their unification policies. All the major parties show relatively allelosubjective attitudes towards North Korea, with significant differences. "Saenuri Party," the current conservative party, maintains quite bit of monosubjective attitudes towards North Korea and requires unilateral changes of North Korea in the process of unification. "Justice Party," the minor progressive party, is the most allelosubjective in that it presupposes the co-existence and mutual survival of the two Koreas in unification. In between lie "The Minjoo Party of Korea" and "The People's Party", the two parties separated in the democratic party bloc.

• Journal of Fisheries and Marine Sciences Education
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• v.11 no.1
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• pp.69-87
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• 1999

This study had been analysed the establishment, the closing and the actual conditions of the fisheries school according to the four times revision and promulgation of the law of education of korea which were devided by the early term (the first Chosun educational decree), the middle term (the second Chosun educational decree) and the last term (the third and fourth Chosun educational decree), and also been investigated how the fisheries education of the school had been acted to the mobocracy and the assimilation policy and together with it's back ground through this analysis. The aim of this study is to contribute to the study of the history of the fisheries school education, analysis of change of the fisheries school education according to practical application of the Chosun educational decree. The summary of the characteristic of the each term are as under. First, in the early term of the fisheries education under the first Chosun educational decree, Experts were despatched to the each province with donated money from emperor and opened seasonal the fishing training centre, a kind of social fisheries education, and trained directly fishing technic and were going to train fisheries trainees regularly under name of elementary fisheries school. Japanese imperialism attached great importance to the vocational education in order to snack economical products from colonized Korea but actually had a purpose to train low quality technician who follow blindly their colony policy of Japanese imperialism. The fisheries schools in the circle of system in early time of Japanese imperialism, Kunsan public elementary fisheries school was established in April 1915, Yosu public elementary fisheries school was established ill May 1917 and Kyungnam Tongyoung training school was established in March 1917. Secondly, After 3.1 movement, the Japanese imperialism established an appeasement policy so called cultural politics and continued assimilation policy with skilful methods. After revision of the second Chosun educational decree, the Elementary vocational school was changed as the vocational training school. The school of fisheries education in middle of Japanese imperialism trained low quality technicians to snack fisheries resources from colonized Korea. After the middle of Japanese imperialism they paid attention on training fisheries technician through fisheries school rather than training school. With high interest and crowded volunteers, Kunsan public fisheries school was promoted in 1922, Tongyoung public fisheries school was promoted in 1923, Yongampo fisheries training school established in 1922 was promoted as Yongampo public fisheries school in 1926. Thirdly, in the time of the third and fourth Chosun educational decree, the end of Japanese imperialism, they met Pacific war after Japan vs China war. During the war time they considered the vocational school as the source of supply for materials and manpower and consequently had to expanded vocational education and systematically despatched students to war field and practiced military training. In 1938, Namhae public fisheries school was established and Chungjin fisheries school was permitted. But in order to supply manpower to Pacific war, the study period of Yosu public fisheries school was shorten from 5 years to 4 year in 1943 and also that of Tongyoung public fisheries school shorten in 1944.

• Korean Journal of Environmental Agriculture
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• v.40 no.3
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• pp.203-210
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• 2021

BACKGROUND: Pesticides can persist in soil due to multiannual uses. To decrease the concerns for potential carry-over of such residues from treated soil during preceding crop cultivation to non-target crops grown in rotation, an uptake study of procymidone was conducted under the actual cultivation conditions in Korea. METHODS AND RESULTS: Procymidone was sprayed twice by foliar application with recommended and double dose according to the safe use guidelines for Korean cabbage up to 14 days before harvest. Arable land was kept fallow for 4 days after harvesting Korean cabbage, and spinach was cultivated as a succeeding crop. Initial residues in soil were 5.670-14.175 mg/kg that were degraded to 3.098-4.555 mg/kg until harvest of Korean cabbage, and then persisted at 1.026-1.300 mg/kg by spinach harvest. Procymidone residues in edible part of succeeding crops from soil uptake were in range of 0.020-0.048 mg/kg for recommended dose and 0.055-0.116 mg/kg for double dose. Root concentration factor (RCF) values of procymidone at different concentration ranged from 0.053 to 0.123, and translocation factor (TF) ranged from 0.176 to 0.768 for spinach. The value of TF was higher than RCF, indicating that the capability of translocation to shoot was relatively higher than that of root uptake and accumulation. CONCLUSION: Procymidone applied on Korean cabbage can be carried-over to spinach and detected at a level similar to MRL (0.05^T mg/kg). Therefore, this study suggests a follow-up study for establishment of plant back interval (PBI) of succeeding crops reflecting the actual agricultural conditions as this study.

• Korean Journal of Breeding Science
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• v.43 no.1
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• pp.81-91
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• 2011

Rice wild relatives have been recognized as reservoirs of genetic reinforcements to improve cultivating rice against biotic and abiotic stresses. A wild relative, Oryza. minuta(BBCC; Acc. 101141), was hybridized with a Korean Japonica cultivar, 'Hwaseong'(AA), followed by ovule culture and several times of back crossings to overcome high level of sterility. During evaluation of the introgression lines, breeding line exhibited resistance to bacterial blight with reasonable agronomic performances, and nominated as an elite breeding line, the 'Suweon497'. A mapping population, to dissect genetic basis of the resistance, was constructed by using $F_2$ progenies of the 'Suweon497' ${\times}$ 'Milyang23'. Association analysis between SSR marker genotypes and pathogenisity levels of each $F_2$ progeny revealed the end terminal region of rice chromosome 11 as the nesting place for the wild rice derived bacterial blight resistance gene, where at least four other genes, Xa3, Xa4, Xa26 and Xa31, have been reported.

• The Journal of the Petrological Society of Korea
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• v.27 no.4
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• pp.207-222
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• 2018

Celestial Chart Stones (original and reproduction) in the National Palace Museum are representative scientific cultural heritage of Korea. Material analysis and nondestructive deterioration assessment were conducted for long-term preservation of these stones. Material analysis revealed that the original was composed of slate and the reproduction was made of dolostone. The original consists of quartz, mica, dolomite minerals, while the reproduction was made up of dolomite, calcite and forsterite. Major deterioration factors of the original stone were cracks and breakouts. In case of the reproduction, scratches and artificial materials were mainly observed. The green and black surface contaminants present at the sides and back of the two celestial chart stones were interpreted as resin-based paint materials. The physical property evaluation using ultrasonic velocity showed a low velocity in the upper left side of the original, while the front right side of the reproduction showed a weak property. Meanwhile, the To-Tc method using ultrasonic velocity was applied to major cracks that impede stability of the original. As a result, it has been calculated that the beginning and the center of the crack are the deepest.

• Journal of the Korea Organic Resources Recycling Association
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• v.27 no.2
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• pp.57-66
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• 2019

This study carried out on-site investigation and precision monitoring to prepare proper design and operation technical guidelines for the use of bio gas in organic waste resources (fertilizing urine, food waste, food waste, food waste, etc.). According to the government's mid- and long-term policy on bio gasification, the expansion of waste resources is actively being pushed forward. However, facilities that use the biogas produced for urban gas and transportation are still under-efficient. Precision monitoring was carried out for biogasification facilities of organic waste resources in seven locations nationwide. When the results of precision monitoring were summarized with the four-season average, the efficiency analysis of each organic waste resource showed that the organic breakdown rate was 66.3% on average on VS basis. Analysis of biogas characteristics before and after pretreatment revealed that the $H_2S$ average of the entire facility was measured at 949.7 ppm using iron salts and desulfurization (dry, wet) and that the quality refining facility shearing and rear end was 29.0 ppm and 0.3 ppm. The methane content was found to be reduced by 65.6% at the rear of the fire tank, 63.5% at the back and 97.5% at the rear.