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기초운동능력의 Ball sports program 학습이 아동의 신체적 자기개념에 미치는 영향
노재귀 ( Jae Kui No ),김광균 ( Gwang Gyun Kim ) 한국스포츠리서치 2007 한국 스포츠 리서치 Vol.18 No.4
As a result of Fundamental motor ability Ball sports program Progress was Physical Self-Description for 12 weeks improved to children`s and having analyzed a mad influence, this study got the following conclusion. First, Appearance factors elevation appears high, and a control group is more positive the experiment group which participated in to Fundamental motor ability Ball sports program Progress of appeared to what affected (p<.001). Second, Health factors look, and a control group is more positive the experiment group which participated in to Fundamental motor ability Ball sports program Progress of appeared to what affected (p<.001). Third, Flexibility factors look, and a control group is more positive the experiment group which participated in to Fundamental motor ability Ball sports program Progress of appeared to what affected (p<.001). Fourth, The experiment group which participated in to Fundamental motor ability Ball sports program Progress is positive to body fat factors be affected were inferior, and appeared so that a control group appeared so that affected to rather negative things compare with advance inspections, and there was the statistical difference that noted (p<.01). Five, Appear to things higher compare with sports confidence elevations, and a control group is positive the experiment group which participated in to Fundamental motor ability Ball sports program Progress is appeared to what affected (p<.001).
Struvite 생성 공정을 이용한 도시폐기물 매립지 침출수 처리
정병곤,김광균,김병효 7개 국립대학교 환경연구 논문집 공동발행 위원회 2003 공업기술연구 Vol.3 No.-
Crystallization such as struvite or hydroxyapatite formation is one of the promising methods in removing nitrogen and phosphorus simultaneously from biologically recalcitrant wastewater. In applying these methods, Alkali is necessary in increasing pH because crystallization is occurred in high pH condition. NaOH has been traditionally used as alkali agent. However, in view of economic point, lime is cheaper than NaOH. Thus, lime was used as alkali agent instead of NaOH in this experiment and the feasibility was studied. Using leachate from landfill site of municipal solid waste as influent, the feasibility of removing nutrient salts through struvite formation and the feasibility of using seawater or bittern as magnesium source in chemical coagulation process were evaluated. When using caustic lime as alkali agent instead of NaOH, struvite was not formed because calcium ion caustic lime react with phosphorus in wastewater before struvite formation. In case of using seawater or bittern as magnesium source, ammonia nitrogen was removed 29-52%, and 36-56%, respectively. This means that the main mechanism of ammonia nitrogen removal is not by struvite formation but by ammonia stripping. Based on the results obtained in this experiment, it is recommended that optimum seawater dosage for efficient coagulation was 5% by volume ratio. It can be estimated that sodium inhibition will not be occurred at this concentration in biological wastewater treatment system.
MAP(Magnesium-Ammonium-Phosphate) 및 응집침전을 이용한 축산폐수의 처리
정병곤,김광균,김병효 국립7개대학공동논문집간행위원회 2003 공업기술연구 Vol.3 No.-
Crystallization method such as struvite or hydroxyapatite formation is one of the promising methods in removing nitrogen and phosphorus simultaneously from biologically recalcitrant wastewater. In these methods, Alkali is necessary in increasing pH because crystallization is occurred in high pH condition. NaOH has been traditionally used as alkali agent. However, in view of economic point, lime is cheaper than NaOH. Thus, lime was used as alkali agent instead of NaOH in this experiment and the feasibility was studied. Using swine wastewater as influent, the feasibility of removing nutrient salts through struvite formation and the feasibility of using seawater or bittern as magnesium source in chemical coagulation process were evaluated. When using caustic lime as alkali agent instead of NaOH, struvite was not formed because calcium ion caustic lime react with phosphorus in wastewater before struvite formation. In case of using seawater or bittern as magnesium source, ammonia nitrogen was removed 53~74%, and 41~78%, respectively. This means that the main mechanism of ammonia nitrogen removal is not by struvite formation but by ammonia stripping. Based on the results obtained in this experiment, it is recommended that optimum seawater dosage for efficient coagulation was 5% by volume ratio.