• 한국지하수토양환경학회지:지하수토양환경
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• 제18권3호
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• pp.33-51
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• 2013

Spatial and temporal characteristics of nitrate contamination and hydrogeochemical parameters were investigated for springs and surficial and bedrock groundwaters in northeastern part of Hongseong. Two field investigations were conducted at dry and wet seasons in 2011 for 120 sites including measurement of field parameters with chemical analyses of major dissolved constituents. Nitrate concentrations were at background levels in springs while 45% of bedrock groundwater and 49% of surficial groundwater exceeded the drinking water standard of nitrate (10 mg/L as $NO_3$-N). The difference in nitrate concentrations between surficial and bedrock groundwater was statistically insignificant. Cumulative frequency distribution of nitrate concentrations revealed two inflection points of 2 and 16 mg/L as $NO_3$-N. Correlation analysis of hydrogeochemical parameters showed that nitrate had higher correlations with Sr, Mg, Cl, Na, and Ca, in surficial groundwater in both dry and wet season. In contrast, nitrate had much weaker correlations with other hydrogeochemical parameters in bedrock groundwater compared to surficial groundwater and had significant correlations only in wet season. Temporally, nitrate and chloride concentrations decreased and dissolved oxygen (DO) increased from dry season to wet season, which indicates that increased recharge during the wet season affected groundwater quality. Aerobic conditions were predominant for both surficial and bedrock groundwater indicating low natural attenuation potential of nitrate in the aquifers of the study area.

• 한국농촌건축학회논문집
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• 제22권3호
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• pp.49-60
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• 2020

The purpose of this study utilizes the service design methodology centered on the lives and experiences of rural residents, who are the main beneficiaries of the service, to derive specific problems and needs, and to propose a service improvement plan suitable for the rural residential environment. The study selected Dosan 2-ri Village, Hongseong-gun, Chungcheongnam-do as the target of the survey, used personas and Customer Journey map of service design method to derive specific core issues and insights from the village residents. By developing this, the final five service directions for 'Air care service', 'Self-driving garbage collection and treatment service', 'Emergency/disaster networking service', 'Contaminant removal service' and 'Mobility share service' were derived and presented according to each key keyword. This study is not just a study to grasp the actual conditions of the rural residential environment, but it focuses on the lives and experiences of rural residents and extracts elements that can respond to changes in the lifestyles and patterns of the residents. It can be used as a basic material for more realistic improvement of rural residential environment and service development research. Most of the existing studies on residential environments and spaces is focused on urban areas, and there is a limit to the use of rural areas in residential areas. Therefore, by making recommendations for improvement of residential environment services suitable for rural areas and by creating residential spaces and environments in rural areas in a comfortable and safe manner, it is thought that it is possible to contribute to improvement of satisfaction in rural areas and improvement of healthy housing welfare as well as to improvement of the quality of life of residents of rural areas.

• 한국농공학회지
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• 제34권1호
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• pp.41-48
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• 1992

Various soil behaviors usually occurring in the geotechnical problems, such as, cutting and embankments, stability of slope, seepage, consolidations, shearing failures and liquefaction, should be predicted and analyzed in any way. An approach of these predictions may be followed by the development of the constitutive equations as first and subsequently solved by numerical methods. The purpose of this paper is develop the constitutive equation of sands uder monotonic or cyclic loadings. The constitutive equation which is based on elasto-plastic theory, modified anisotropic consolidated stress parameter by Sekiguchi et al and Pender's theory is derived. And the equation is included a new stress parameter, hardening function, Bauschinger's effects and Pender's theory. The model is later evaluated and confirmed the validity by the test data of Ottawa sand, Banwol sand Hongseong sand. The following conclustions may be drawn: 1. The consititutive equation which is based on elasto-plastic theory, modified anisotropic consolidated stress parpameter by Sekiguchi et al and Pender's theory is derived. The equation in included a new stress parameter, hardening function, Bauschinger's effect and Pender's theory. 2. For Ottawa sand, the result of the constitutive equation shows a better agreement than that of Oka et al. The result of axial strain agrees well with the tested data. However, the result of horizontal strain is little bit off for the cyclic loadings or large stress. It is thought that the deviation may be improved by considering Poisson's ratio and precise measurement of shear modulus. 3. Banwol sand is used for the strain and stress tests with different relative densitites and confining pressures. The predeicted result shows a good agreement with the tested data because the required material parameters were directly measurd and determined form this laboratory. 4. For Hongseong sand, the tests under same amplitude of cyclic deviatoric stress shows a similar result with the tested data in absolute strain. It shows the acute shape of turning point because the sine wave of input is used in the test but the serrated wave in prediction.

• 농업과학연구
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• 제44권3호
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• pp.440-450
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• 2017

With the increasing number of migrants from urban to rural areas in Korea, Population inflow policies have helped increase the number of urban-to-rural migrants which has eased the labor shortage in rural areas.. But, there are new problems in rural areas caused by the "perception gap in regard to harmony, awareness, pride and opportunity to meet" between the urban-to-rural migrants and the original residents. The purpose of this study was to analyze the factors affecting the harmony between the urban-to-rural migrants and residents. A survey was conducted among 70 people living in Hongseong-gun in Chungcheongnam-do with an aim to come up with proposals for policies that can help resolve these social problems in the mutual understanding of urban-to-rural migrants and original residents. An ordered logit model was used to analyze the effect of the perception gap between the urban-to-rural migrants and the rural residents. The result of the survey showed that most of the urban-to-rural migrants believed that the increase in urban-to-rural migrants did not bring harmony to rural areas because of the perception gap. Based on these results, we concluded that the following three policy alternatives would be needed: first, development of urban-to-rural migrant education programs for relatively young men; second, a policy supporting various forms of community gathering in a rural society; third, diversification of urban-to-rural migrant education programs such as communication program and conflict management program, etc.

• 동아시아식생활학회지
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• 제17권1호
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• pp.11-19
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• 2007

This study was designed to evaluate Saturday nutrition classes for obese elementary students in Chungnam Province. Obesity index, nutrient intake, nutrition knowledge, nutrition attitude, and self-satisfaction of 36 obese elementary students were compared before and after attending nutrition classes every other Saturday for 3 months. The average age, height, weight, body fat, % body fat, and obesity index were 11.9 years, 145.5 cm, 53.3 kg, 24.5 kg, 45.7%, and 32.4%, respectively. Most of the subjects(94.5%) viewed themselves as fat. Sixty-three percent of children were discontent with their body-image. All answered that they have experience with weight control. The major methods of weight control were exercise and reduction of snacks. The mean serum cholesterol, blood glucose, GOT/GPT, and hemoglobin were 177.4 mg/dL, 90.4 mg/dL, 25.8/25.5 IU/L, 14.5 g/dL, respectively. After attending nutrition classes, the daily intakes of energy, plant protein, plant fat, carbohydrate, crude fiber, and cholesterol increased significantly. The scores for nutrition knowledge, nutrition attitude, and self-satisfaction also increased after nutrition classes, but there were no significant differences. Percent body fat decreased significantly after nutrition classes. In conclusion, nutrition education for elementary students is effective for the prevention and control of obesity. Further research is needed to develop a systematic program of nutrition education for obese children.

• Nutrition Research and Practice
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• 제13권1호
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• pp.32-40
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• 2019

BACKGOUND/OBJECTIVES: This study investigated nutritional status of the elderly with dementia in a care facility with the aim of improving the meal quality of the facility. SUBJECTS/METHODS: Data were collected from 30 dementia patients aged more than 65 years in a long-term care facility in Hongseong. The data were obtained from questionnaires and medical records. The food intake data was obtained using food photographs and the nutrient intakes were calculated using the CAN-Pro 5.0. The data were compared with the dietary reference intakes for Koreans (KDRIs). The nutrient density, diet quality such as nutrient adequacy ratio (NAR), mean adequacy ratio (MAR), and index of nutritional quality (INQ), as well as dietary diversity score (DDS) were evaluated. The data were analyzed using SPSS statistical programs. RESULTS: The average daily energy intakes for men and women were much lower than the estimated energy requirements of the KDRIs. The average intakes of energy and most nutrients in the general diet group were significantly higher than those of the other two groups. Significant differences in diet quality and diet diversity were observed according to the meal type groups. The NARs of some minerals (calcium, iron, and zinc) and vitamins (vitamin $B_6$ and folic acid) were less than 0.5 in all study groups. The NARs of protein, iron and MAR of the general diet group were significantly higher than those of the liquid diet group. The DDS scores of meats, fruits and diary food group were very low in all meal type groups, meaning that the diet qualities of the study subjects were not appropriate in all meal type groups. CONCLUSIONS: The food intakes of the study groups showed some limitations by a direct comparison with KDRIs because of the very low physical activities of the study subjects. The diet quality and diet diversity indices suggest the need for improvements in the nutritional quality in all types of diet. Overall, new intervention strategies targeting facility residents with dementia in Korea are needed as soon as possible.

• 보건의료생명과학 논문지
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• 제10권2호
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• pp.259-264
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• 2022

본 연구는 충청남도 홍성 지역에 거주하는 노인들을 대상으로 임플란트 의료보험 적용 시행 후 임플란트 전·후의 기능별 만족도 요인을 비교하여 노인들의 구강건강 관련 삶의 질을 향상하기 위한 기초자료를 제공하고자 하였다. 2020년 11월 1일부터 20211년 3월 31일까지 충청남도 홍성군에 거주하는 55세 이상을 대상으로 설문조사를 하였다. 저작, 사회적, 심리적 기능을 조사하여 Likert 5점 척도를 사용하였고 기능별 만족도 비교를 위해 paried T-test를 실시하였다. 임플란트 시술 전·후에 대한 저작 기능, 사회적 기능, 심리적 기능에 대한 모든 문항에서 임플란트 시술 전보다 시술 후에서 유의적으로 높게 나타났다(p<0.001). 임플란트 시술은 노인의 구강건강 뿐만 아니라 삶의 질 변화에도 많은 영향을 주므로 노인의 구강건강 증진을 위해서 노인들의 구강 건강 문제와 임플란트에 대한 연구가 더 많이 시행되고, 그에 따른 방안이 필요하겠다.

• 자원환경지질
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• 제37권5호
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• pp.477-497
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• 2004

충남 홍성 및 광천 지역에는 두 초염기성암들이 선캠브리아기의 편마암 복합체내에서 격리된 암체로서 산출된다. 이 암체들은 북북동 방향으로 수백 미터 신장되었고, 인접한 변성퇴적암류와 거의 수직 단층관계로 접해 있다. 이 암석들은 듀나이트 및 하즈버자이트로 등립상-모자이크 조직 및 원생입상 조직을 보이고, 드물게 잔쇄반상조직을 보이기도 한다. 이 암석들은 다양한 양의 높은 포스테라이트 조성의 감람석, 마그네슘비의 사방휘석과, 트래모라이트에서 마그네시안 조성의 각섬석, 부 구성광물로 첨정석, 사문석, 녹리석, 자철석, 금운모, 활석 등을 포함하는데 이는 주변암인 편마암 복합체 및 변성 염기성암(각섬석, 흑운모, 사장석, 알칼리 장석, 석영)과 구분이 된다. 화학적으로 이들 초염기성암은 높은 마그네슘비 및 전이 원소 함량, 낮은 알칼리원소 함량, 결핍된 비호정 원소 함량을 보인다. 상관계수에서 높은 정의관계가 함철 원소 쌍, 비호정 원소 쌍, 함철원소와 SiO$_2$ 또는 $Al_2$O$_3$ 원소 사이에서 나타났고 부의 상관관계가 Ni 및 주 원소 사이에서 나타났다. 이들 결과들은 변질의 증가에 따른 함 철 및 $Al_2$O$_3$광물의 증가와 함마그네슘 광물의 감소를 의미한다. 계산된 지질온도계와 광물 조합은 초염기성암이 녹색편암상에서 각섬암상 범위 조건에서 변성 받았음을 암시한다. 전 세계 유사암체와 비교해, 홍성 및 광천 초염기성암들은 희토류를 포함한 비호정성원소에서 결핍된 특징을 보였는데 이는 이 암석이 결핍된 맨틀로부터 유래되었음을 암시한다. 이런 홍성 및 광천 지역 초염기성암의 전체적인 특징은 알파인형 초염기성암 중 특히 천부 맨틀 판 형의 경우와 유사하다.

• 자원환경지질
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• 제49권1호
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• pp.1-11
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• 2016

사문석군 광물과 관련된 국내 선행 연구에 따르면 일반적으로 크리소타일(chrysotile)이 섬유상으로 산출되는 것으로 알려져 있다. 하지만 국외에서 섬유상 안티고라이트(antigorite)의 산출이 보고되었으며 이로 인한 인체의 유해성에 대한 연구가 현재 진행되고 있다. 따라서, 이 연구에서는 국내 홍성과 가평지역의 사문암 내에서 섬유상으로 산출되는 사문석군 광물의 종류와 광물학적 및 화학적 특성을 XRD, SEM-EDS, PLM, EPMA 분석을 통해 확인하고, 이를 통해 사문석군 광물의 산출양상 및 형성과정을 규명하고자 하였다. 연구지역인 홍성은 각섬석 편암이 부분적으로 사문암화 또는 활석화 되어 있으며, 가평은 석회질 편암이 사문석화 작용을 받아 석회암 및 각섬암 내 사문암대를 형성하고 있다. 연구 결과, 홍성에서는 크리소타일과 안티고라이트가 섬유상으로, 가평에서는 크리소타일이 섬유상으로 산출되는 것으로 확인되었다. 분산염색법을 이용한 편광현미경 분석 결과, 크리소타일은 섬유 길이방향($n{\parallel}$)에서 자주색(magenta), 섬유 지름방향($n{\perp}$)에서 파란색(blue)의 분산염색색상을 보였고, 안티고라이트는 섬유 길이방향($n{\parallel}$)에서 진한 노란색-자주색(gold to golden magenta), 섬유 지름방향($n{\perp}$)에서 blue magenta의 분산염색색상을 나타냈다. 또한 박편관찰 및 SEM 분석을 통해 판상의 사문석 또는 암석 내 1차 광물이 열수변질작용을 받아 섬유상의 광물을 형성한 것으로 판단된다. EPMA mapping 분석 결과, Mg 성분은 크리소타일이 안티고라이트보다 상대적으로 높았으며 Si와 O 성분은 안티고라이트가 크리소타일보다 높은 것으로 확인되었다. 하지만 두 광물의 화학성분 차이를 정확히 알기 위해서는 많은 시료의 통계적인 분석 값이 필요할 것으로 생각된다. 이러한 결과를 통해 섬유상의 안티고라이트(antigorite)는 X-선 회절 패턴과 형태적 특성이 크리소타일(chrysotile)과 비슷하여 혼동될 수 있으나, 서로 다른 분산염색색상을 나타내므로 분산염색법을 이용한 편광현미경 분석을 통해 두 광물의 구별이 가능한 것으로 확인되었다.

• 동아시아식생활학회지
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• 제23권1호
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• pp.107-118
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• 2013

This study investigated the effects of Beaknyuncho (Opuntia ficus-indica var. saboten) powder on the quality of sponge cakes. Sponge cakes containing 0, 1, 3, and 5% of powder were prepared and stored for three days at $20^{\circ}C$. The volume of sponge cake increased up to 1% according to the amount of added powder, while the pH level decreased as the amount of powder increased. The edible period of the products could also be extended by the addition of Opuntia ficus-indica var. saboten powder; however, the lightness of crust and crumb was weaker as the amount of powder increased. Redness, hardness, gumminess, and chewiness increased whereas springiness and cohesiveness decreased with the addition of powder. In a sensory evaluation of the overall acceptance, the highest scores were for treatment with 1% Opuntia ficus-indica var. saboten powder during storage periods.