Remarks on the Double Weighted A_P-Condition

박재근 空軍士官學校 1986 論文集 Vol.21 No.-

The Case of one weighted A_p-Condition was defined by B. Muckenhoupt. But he did not consider double weighted A_1 and A_∞ condition. Muckenhoupt had shown that A_∞=∪ A_p A_p p<∞. In this paper, we consider double weighted A_1 and A_∞ condition for some special case by Jensen's inequality and Muckenhoupt results.

팔당호 연안대 초지 생태계에서 낙엽 구성성분의 유실률 5 . Ca , Mg , Na ( The Remover Rates of The Constituents of Litters in The Littoral Grassland Ecosystems in The Lake Paldangho 5 . Ca , Mg and Na )

박재근,심규철,장남기 한국잡초학회·한국잔디학회 1996 Weed & Turfgrass Science Vol.10 No.4

2P-58 : Properties of SPEEK membrane for fuel cell application

박재근,이현수,위은영,신세종,민병렬 한국공업화학회 2003 한국공업화학회 연구논문 초록집 Vol.2003 No.-

2015 개정 교육과정에 따른 중학교 과학 교과서 탐구 활동에 반영된 과학과 핵심역량의 분석

박재근 한국생물교육학회 2019 생물교육 Vol.47 No.4

The purpose of this study was to find out the implications by analyzing how science core competencies introduced in the 2015 revised national curriculum were reflected in the inquiry activities of middle school science textbooks. The results were as follows. First, The total frequency of core competencies presented in the inquiry activities of four kinds of science textbooks was 1,135 times. The frequency of core competencies in the first-grade textbooks applied to the free school year program was about 70% level compared to the second and third grades. The composition ratio was high in ‘scientific inquiry’ and ‘scientific communication’, and relatively low in ‘scientific problem solving’ and ‘scientific participation and lifelong learning’. Second, in the areas of movement and energy, matter, earth and space, the ratio of scientific inquiry ability was highest, but in the areas of life and integration, scientific communication ability was the highest. Third, the analysis of core competencies for each unit of life area showed the highest proportions of scientific communication ability in ‘biodiversity’, ‘animal and energy’, ‘stimulation and reaction’ and ‘reproduction and inheritance’ unit. On the other hand, scientific inquiry ability was the highest in ‘plant and energy’ unit. The proportion of core competencies by publishers differs, suggesting that specific agreements and guidelines for implementation after the curriculum notice need to be shared. In addition, there is a need for the plan to connect the curriculum’s goals, contents, teaching and learning methods, and evaluations with a focus on core competencies.

Selectivity Enhancement in the Removal of SiO2 and Si3N4 Films with Addition of Triethanolamine in a Ceria Slurry during Shallow Trench Isolation Chemical Mechanical Polishing

박재근,박금석,강현구,Manabu Kanemoto,Ungyu Paik 한국물리학회 2008 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.53 No.3

Effects of the triethanolamine (TEA) concentration in a ceria slurry on the removal rates and the removal selectivity of SiO2 and Si3N4 films were investigated by performing shallow trench isolation chemical mechanical polishing (STI-CMP). At a higher concentration of TEA in the polishing slurry, the removal rate of the Si3N4 film significantly decreased while maintaining a high removal rate of the SiO2 film with a high removal selectivity of the SiO2-to-Si3N4 films during the CMP process. We found that the adsorption behavior between TEA and the surface of the Si3N4 film was determined by the electrokinetic behavior, where the zeta-potential measurement depended on the suspension's pH. Adsorption results demonstrated that as the TEA concentration was increased, the force of attraction between negatively charged hydroxyl groups along the backbone of the TEA and the surface of the Si3N4 film was enhanced due to an electrostatic attraction force. Through these reactions, the zeta potential of the Si3N4 film's surface became more positive because of the amine functional group of TEA in the slurry. In addition, with increasing zeta potential of the Si3N4 film, a denser passivation layer was formed on the Si3N4 film with an anionic surfactant, which led to suppression of the removal of the Si3N4 film with a higher SiO2-to-Si3N4 removal selectivity in the STI CMP.

특집2 - 산학협력 업그레이드를 위한 글로벌 산학협력의 필요성 및 성공사례

박재근,Park, Jae-Geun 한국대학교육협의회 2010 大學敎育 Vol.163 No.-

최근 들어 미국, 유럽, 인도 등과의 FTA체결 등을 통해서 대한민국의 경제시장이 날로 증가해가고 있으며, 이제 해외와의 협력은 우리에게 선택이 아닌 필수가 되어가고 있다. 얼마 전 한 신문에 국내기업과 일본기업의 경쟁력을 비교하는 흥미로운 기사가 소개되었다. 이 신문에서는 국내기업들이 한정된 내수시장을 극복하기 위해 해외로 적극적으로 진출하였기 때문에 우수한 경쟁력을 확보하였으며, 반면 일본기업의 경우 안정된 내수시장이 오히려 해외로 진출할 기회를 가로막아 스스로와 경쟁력을 감퇴시켰다고 분석하였다. 이러한 사례는 우리 대학들에 시사하는 바가 크다. 우리 대학들의 주요한 연구성과라 할 수 있는 논문의 경우 이공계를 보면 대다수의 논문이 이미 해외의 각종 유명 학술지에 게재되고 있다. 특히 우수한 연구성과의 산물이라 할 수 있는 SCI논문의 경우 2008년기준으로 경제규모에 걸맞은 세계 12위에 랭크되어 있다. 또한 특허의 경우 이미 세계 4위의 출원대국이다. 이러한 성과로 인하여 국제공개어에 한글이 채택되는 성과까지 거두고 있는 상황이다. 또한 MB정부가 들어서면서 매년 R&D연구비를 10%이상 증가시킬 계획에 있으며, 이러한 노력을 통해 연구성과물의 수준도 향상되어 SCIENCE, CELL, NATURE등의 저명학술지 게재가 늘고 있는 등 연구성과가 세계적인 수준으로 접근해가고 있다. 반면에 이러한 성과에도 불구하고 아직 대다수 대학들의 글로벌 산학협력은 미비한 수준이다. 교육분야에 대한 글로벌화는 최근 들어 많은 변화가 이루어지고 있지만, 산학협력부분에 대한 글로벌화는 활성화 되지 못한 것이 현실이다. 그러나 앞으로 해외와의 산학협력은 대학과 연구자에게 선택이 아닌 필수가 될 전망이다. 정부에서는 현재 국제협력 분야의 R&D연구비를 급증시키고 있으며, 우리나라의 기업이 해외로 활발하게 진출하는 상황에서 이제 연구수준도 국내가 아닌 해외에서도 인정받을 수 있는 수준을 요구 받고 있다. 이와 같이 급변하는 상황에서 이제 해외와의 산학협력은 대학과 연구자들에게 새로운 도전이며, 경쟁력을 업그레이드 할 수 있는 기회로 다가오고 있다. 이에 최근 한양대학교의 해외와 기술이전, 사업화, 공동연구, R&D센터유치와 관련된 산학협력 사례 소개를 통해 우리나라 대학의 산학협력을 업그레이드하는 방향을 모색해 보고자 한다.

광기능성 고분자 기술동향 및 산업화 현황

박재근,문봉석,황진택 한국고분자학회 2001 한국고분자학회 학술대회 연구논문 초록집 Vol.2001 No.10

2015개정 교육과정에 따른 중학교 과학 교과서 「생물의 다양성」 단원의 내용 요소 분석

박재근 한국생물교육학회 2017 생물교육 Vol.45 No.4

The purpose of this study was to compare the content elements and its composition of five science textbooks dealing with ‘biodiversity’ unit which was first introduced in the 2015 revised national science curriculum of middle school, and to present the desirable direction of content construction in recognizing biodiversity issues. The following results were obtained. First, in order to explain the biodiversity properly, it is necessary to include all the related concepts and not to exceed the scope of achievement standards. Second, it is desirable to use daily life materials as a preliminary activity of biological classification and to present scientific classification criteria for living organisms explicitly. Third, the weight of international effort to pre-serve the biodiversity in science textbooks was relatively low, so there is a need to provide additional information related to international conventions. Fourth, it is necessary to research the ways in which the scientific concepts, principles, and science core competencies presented in science textbooks can be integrated naturally with a close relationship.

PoRAM 최근 연주 도향

박재근 대한전자공학회 2005 전자공학회지 Vol.32 No.2

제 7차 교육과정에 따른 고등학교 생물Ⅱ교과서에서 물질 대사 단원에 대한 탐구 활동의 비교 분석

박재근 한국생물교육학회 2004 생물교육 Vol.32 No.2

This study was carried out to analyze the inquiry activity for metabolism contents including photosynthesis and respiration unit in high school BiologyⅡ textbooks by the 7th curriculum. According to the results, the average proportions of respiration unit is higher than one of photosynthesis unit differing in description formula and contents depending on textbook writers. The objectives of education for concerning unit is described as concentrating on cognitive ones including contents factors, not affective or psychomotor. It was shown that inquiry activity composed of the observation & experiment, data interpretation and debate & investigation activity in analyzed textbooks was totally 19 times in photosynthesis unit and 16 times in respiration, and the average was 9 in photosynthesis and 4.8 in respiration. Especially, the proportion of observation & experiment activity for the respiration unit was less than photosynthesis. Comparing to contents and procedures of the inquiry activity proposed in metabolism chapters showed that experimental contents and implements in the textbooks were generally to be like, but differed in experimental materials, processes and data management methods in details.