• Title/Summary/Keyword: Sampling Contents

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Changes of Chemical Contents in Groundwater at Controlled Horticulture in Honam Area (호남지역의 시설원예재배지 지하수중 화학성분 변동요인 조사)

  • Lee, Deog-Bae;Lee, Kyeong-Bo;Rhee, Kyeong-Su
    • Korean Journal of Environmental Agriculture
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    • v.15 no.3
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    • pp.348-354
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    • 1996
  • This study was carried out to investigate factors influencing on the groundwater quality at controlled horticulture in Honam area in 1995. The deeper groundwater sampling, the lower concentrations of $NH_4-N$ and $NO_3-N$ were observed. There was no difference in concentrations of $SO_4\;^{2-}$ and $Na^+$ in the groundwater below 15m. Contents of $NH_4-N$, $NO_3-N$ and $PO_4\;^{3-}$ in groundwater were the highest at rice transplanting season(the late May) and that of $SO_4\;^{2-}$, $Na^+$ and $Cl^-$ were the highest at dry season(the mid-February). Continuous cultivation of horticultural crops showed higher concentration of $NH_4-N$, $NO_3-N$, $PO_4\;^{3-}$, $Na^+$ and $Cl^-$ in groundwater than rotational culture with rice. The longer cultivation years with horticultural crops, the higher concentrations of $NO_3-N$, $PO_4\;^{3-}$, $SO_4\;^{2-}$ and $Cl^-$ were shown, and constitutional ratio of $NO_3-N$ among the anions increased gradually. Nitrate-N level, exceeded 20mg/l, the critical level for agricultural usage, frequently at Yongjinmyeon Wanju and Janglockdong Kwangju, and $PO_4\;^{3-}$ levels were higher at Seogtandong Iksan than the other places.

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Development and Validation Study of SLS-P (Servant Leadership Scale-Pastoral version) (목회용 서번트리더십 척도 개발 및 타당화 연구)

  • Seog, Chang-Hoon
    • The Journal of the Korea Contents Association
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    • v.20 no.1
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    • pp.658-667
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    • 2020
  • The purpose of this study was to develop the Servant Leadership Scale-Pastoral Version(SLS-P). In order to accomplish the purpose of this study, analyzed the relationships of Christian tradition and servant leadership, explored the rationale about servant leadership measurements and 366 of the Christians were sampled through the cluster sampling. The finding of the study were as follows: First, The characteristics of servant leadership analyzed in Bible traditions and Jesus model. Second, The factorial structure of PHS was extracted as 5 factors (sharing, serving, caring, humbling, leading) with 23 items. Third, The utilizations of this SLS-P expects to be evaluated to the servant leadership program in the pastoral setting.

Impact of Perceived Leadership Styles on Organizational Commitment (지각된 리더십 유형이 구성원의 조직몰입에 미치는 영향)

  • Lee, Jeong Eon
    • The Journal of the Korea Contents Association
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    • v.18 no.6
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    • pp.600-607
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    • 2018
  • This study is designed to examine the effects of transformational and transactional leadership on organizational commitment. A survey questionnaire is used to gather the data while judgement sampling was utilized to choose the respondents. The results from the study indicate that transformational leadership is found to positively affect emotional and normative commitment respectively. Using multiple regression, it is also found continuance commitment is not related to transformational and transactional leadership. The study partially supports the model that perceived leadership affects organizational commitment. It is proposed that transactional leadership appears to be a more useful predictor of organizational commitment. Given the findings of this study, firms are provided with insights into how transformational and transactional leadership may contribute to managing workers' organizational commitment.

A Study on the Pointed Technology Application of Police for Building the Learning Organization (학습조직 구축을 위한 경찰의 첨단기술 활용에 관한 연구)

  • Jeong Duke-Young
    • The Journal of the Korea Contents Association
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    • v.6 no.6
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    • pp.109-116
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    • 2006
  • This research was performed with the purpose to examine the Marquardt's learning organization theory and analyzed empirically the survey on 841 police officers in Korea. Altogether 841 questionnaires were collected from 23 police stations and one training institution. The sample group were composed of ranks and file sworn officers selected among the total police stations in Korea proper. The size of police stations, and its location has been taken into consideration in sampling procedure. We fan find out from this research that technology application, as subsystems of learning organization, directly related to learning dynamics significant effects on police learning organization. For building the learning organization in Korean Police, police manager should improve on the pointed technology application. Police officers could be given more scope for their problem-solving talents. Such developments would fit in well with the best policing model.

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Food and feeding habits of the large cyprinid fishes in the upper Blue Nile River, Ethiopia

  • Marishet Teshome;Minwyelet Mingist;Elias Dadebo;Degsera Aemro
    • Fisheries and Aquatic Sciences
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    • v.26 no.5
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    • pp.344-354
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    • 2023
  • Food and feeding habits of large cyprinid fishes (Labeobarbus intermedius, Labeobarbus nedgia, and Labeo forskalii) had been investigated in the upper Blue Nile River, Ethiopia. Four sampling sites were selected and specimens were sampled during the post-rainy (November 2016) and dry (March 2017) seasons by gillnets of 6 cm, 8 cm, 10 cm, 12 cm, and 14 cm mesh sizes. Totally 401 fishes were collected and about 30.4% (122) of the samples were documented with empty guts and 279 (69.6%) of them were with non-empty guts. The whole contents of all non-empty gut specimens were taken, labeled, and preserved using a 5% formaldehyde solution for further analysis. In the laboratory, gut contents were examined and identified using compound and stereo microscopes. The relative importance of different food items in the diet compositions was analyzed using a frequency of occurrence and volumetric analysis. During the post-rainy season, insects and phytoplankton were mostly ingested as food items. However, during the dry season, phytoplankton was the most important food item in the diet of all cyprinid fishes of the river. Based on current study results, L. intermedius and L. nedgia might be omnivores in their diet but Labeobarbus forskalii seemed to be detritivorous.

Needs assessment of a home-visit safety management training program for visiting nurses (지역사회 방문간호사의 가정방문 안전관리를 위한 실무교육 요구 분석)

  • Kim, Eunjoo;Kim, Hyori
    • The Journal of Korean Academic Society of Nursing Education
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    • v.29 no.2
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    • pp.138-147
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    • 2023
  • Purpose: This study aimed to identify the concrete educational needs of visiting nurses working in a community health setting in Korea. Methods: We conducted four focus group interviews from October 7 to October 18, 2021. Twenty-five visiting nurses who worked in public health centers were recruited through purposive sampling. A qualitative content analysis was used to analyze the interview data. Results: The demands of educational contents for visiting nurse safety management practical training were: (1) coping with physical and verbal violence, (2) coping with sexual violence, (3) infection control for infectious diseases with a high prevalence in the community, and (4) preventing and coping with animal bites during home visits. In addition, visiting nurses suggested training programs that comprised: (1) case-based learning, (2) short video clips, and (3) recurrent integrated education. Conclusion: Safety management training programs for visiting nurses should be implemented to the extent that they add no burden on their workload and are easily accessible at any time. In addition, training programs should be based on actual cases and be focused on contents that can be applied in home visit situations. A practical safety management training program should be developed based on the educational needs of visiting nurses, as identified through this study.

Digital Restoration of Ring-Pommeled Sword by Using Technology of 3D Shape Information Processing (3차원 형상정보 처리기술을 이용한 환두대도의 디지털 원형복원)

  • Kim Young-Won;Jun Byung-Hwan
    • The Journal of the Korea Contents Association
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    • v.5 no.4
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    • pp.133-140
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    • 2005
  • Culture Technology is the basic technology which produces cultural contents in a narrow sense. All nations do their best in order to create new contents which can form international and cultural sympathy. If a variety of contents are created by applying Korean proper cultural heritages, they will be creative and competitive internationally. Therefore, technology of original cultural restoration is an essential and crucial skill. In this paper, 'gilt bronze dragon-phoenix ring-pommeled sword', a cultural heritage of baekje age, will be restored to the original form digitally on the basis of three-dimensional shape-information processing technology and the scientifically analyzed data. First of all, data from three-dimensional scanning is revised using stuffing and smoothing methods after sampling, extracting characteristics, and align. Then, they are modeled in a curved surface with NURBS and B-Spline. Secondly, textures are edited by estimating the color of components and the quality of materials, and then they are mapped. Original form model which was made was revised and corrected by specialists' examinations. The digitally revised ring-pommeled sword was combined with information technology, and it can be used to revise damaged cultural heritages by constructing formal database of ring-pommeled sword with regard to age, area and type. It can be also used as educational contents in archaeology or preservation science and cultural contents such as movies, broadcasts, games, animations and so on.

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A Study on Heavy Metal Contents of the Fresh Water Fish, and the Shellfish in Koran (국내 유통 민물어류와 연안산 패류의 중금속 함량에 관한 조사)

  • 김연천;한선희
    • Journal of Food Hygiene and Safety
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    • v.14 no.3
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    • pp.305-318
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    • 1999
  • This study were conducted to estimate the values of the heavy metal in the fresh water fish and shellfish collected from fish market. The levels of the heavy metal were determined in a total of 319 samples of 11 species of the fresh water fish and 14 species of the shellfish by mercury analyzer and atomic absorption spectrophotometer. The results of this study were summerized as follows; The average contents of the heavy metal in the fresh water fish were Pb 0.075, Hg 0.05:3, Cd 0.002, Cr 0.135, Fe 8.695, Mn 1.078, Zn 9A91, Cu 0.548 mg/ kg. The average contents of the heavy metal in the shellfish were Pb 0.059. Hg 0.007, Cd 0.146, Cr 0.147, Fe 40.808, Mn 7.738, Zn 13.943, Cu 2.7:31 mg/kg. Being compared the average contents of the heavy metal of the fresh water fish with those of shellfish, the average contents of Cd, Fe, Mn, Cu in the shellfish were significantly higher than in the fresh water fish(P<0.001). Depending on the sampling areas, the average contents of the heavy metal were different by districts. The contents of the heavy metal were changed with the seasons(P<0.05).

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A Study on the Importance of Contents in Middle-School Home-Economics (중학교 남.녀학생이 인식한 가정과 교육내용의 중요성에 관한 연구 - 전라북도 남.녀학생을 중심으로-)

  • 박일록
    • Journal of Korean Home Economics Education Association
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    • v.10 no.2
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    • pp.29-42
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    • 1998
  • The purpose of this study was to identify the contents that students want to learn the most on Home-Economics. Participants were 710 middle school students(359 boys and 351 girls) from 9 schools located in 4 cities and 5 counties in CholaBukDo. The results are as follows: 1. Of 32 contents on Family life, boys were interested in 'the puberty', 'pregnancy and the ethics on sex', 'social needs', 'the importance of family relationship', and 'adolescents' physical development'. On the other hand, girls were more intered in 'pregnancy' and 'the ethics on sex', 'the puberty', 'development of career consciousness' and 'career preparation', 'the adolescents' physiolosical and physical development', and 'the importance of family relationship'. 2. Of 37 contents of Managing home resource and Consumer life subarea, boys showed their interests on 'environmental problems', 'environmental conservation', 'environmental pollution', 'management of time and work', 'knowledge', 'management of their abilities'. And girls were more interested in 'environmental conservation', 'environmental pollution', 'environmental problems', 'adolescents life', and 'management of time and work'. 3. Of 49 contents on Dietary life, boys were more interested in 'puberty and the development', 'importance of nutriment', 'nutrition and health' and 'smoking and the health'. However, girls were more interested in 'smoking and health', 'puberty and the development', 'the importance of nutriment', 'nutrition and health', 'a realistic plan to reduce the food-based environmental pollution'. 4. Of 40 contents on Clothing life subarea, while boys were interested in 'the suitable cloths on oneself', 'clothing design', 'regulation of temparature', physical protection' 'merchandising for ready-made clothing'. On the other hand, girls were mostly interested in 'the suitable cloths on oneself', and next 'the clothing design', 'merchandising for ready-made clothes','physical protection', and 'the appropriate posture and physical adornment'. 5. Of 18 contents on Residence life subarea, teachers emphasized the importance of ventilation for adjusting the room environment and students were more interested in the effective use of the residing space. In general, those middle school students in Cheolabukdo showed the biggest interest on 'Clothing life', 'Residence life' the second, 'Eating life' the third, 'Human development and Family relationship' the fourth, and Management of family resource and Consuming life' was their fifth interest. Such result was consistent with Ⅱ-Rok Park's previous research(1997). Since the participants for this study were sampled form 9 schools located in CheolaBukDo, it is not suitable to apply the results nationwide. The restricted sampling must be considered and further studies are needed to make comparisons among areas.

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Effects of Native Korean Lespedeza(Lespedeza stipulacea Maxim.) on Soil Conservation (자생(自生) Korean Lespedeza(Lespedeza stipulacea Maxim.)가 토양보전(土壤保全)에 미치는 영향(影響))

  • Kim, Moo-Sung;Kim, Se-Young;Jeong, Woo-Jin
    • Korean Journal of Soil Science and Fertilizer
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    • v.30 no.1
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    • pp.72-83
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    • 1997
  • Forty six natural habitats of Korean lespedeza(Leapedeza stipulacea Maxim.) were investigated for the growth characteristics, mineral contents of plant and the physico-chemical properties of natural habitat's soil compared with the upland soil nearby the habitat. The results obtained were summarized as follows. Plant height and dry matter yield were higher in the samples taken in late than early August showing large variation within the sampling date and location. Korean lespedeza showed higher contents of Fe and Mn, but lower contents of K, Ca, Mg and Cu than Alfalfa. The contents of P and Zn were about the same. The natural habitat showed higher soil pH and Ca content but lower contents of $P_2O_5$, K, and organic matter than the vicinity of natural habitats and the average soil of Korea. The contents of Mg were about the same. The soil texture of natural habitats showed much higher portion of sand and extremely low portions of silt and clay than both area. Korean lespedeza is so well adapted to the soil with low fertilizer and organic matter that other crops and most weeds fail. It also appears to thrive on the sandy loams, loamy sands of the piedmont region such as waste land and on the similar soils with variously physico-chemical properties.

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