장ㆍ노년기 지원활동 유형과 생성감과의 관계

홍은진(Hong, Eun-Jin) 한국노년학회 2010 한국노년학 Vol.30 No.2

본 연구는 장ㆍ노년기의 공식적ㆍ비공식적인 지원활동과 생성감 간에 쌍방적 관계를 분석해 보았다. 공식적인 지원활동에는 기부활동과 자원봉사활동에 초점을 두어 살펴보았고, 비공식적인 지원활동에는 성인자녀, 친구, 이웃, 친척에 대한 물질적ㆍ정서적 도움에 초점을 두어 살펴보았다. 이를 위해 서울지역에 거주하는 55~74세까지의 장ㆍ노년기를 대상으로 설문조사를 실시하여 총 625부를 최종 분석에 사용하였다. 공식적ㆍ비공식적인 지원활동과 생성감의 쌍방적 관계를 검증하기위해서는 연립방정식모형(simultaneous equation model)을 활용하였다. 분석 결과 첫째, 공식적 지원활동의 기부활동과 생성감과의 관계는 일방적인 관계인 것으로 나타났으며, 외생변수로서는 소득이 기부활동에 정적인 영향을 미치는 것으로 나타났다. 둘째, 공식적 지원활동의 자원봉사활동과 생성감의 모형에서는 쌍방적 관계를 갖는 것으로 나타났으며, 외생변수들의 영향력과 관련해서는 자녀수가 자원봉사활동에 부적으로 나타났으며, 연령과 건강 등은 정적인 영향을 미치는 것으로 나타났다. 셋째, 비공식적 지원활동의 물질적ㆍ정서적 도움과 생성감과의 관계에서는 쌍방적 관계를 갖는 것으로 나타났으며, 외생변수들의 영향력과 관련해서는 자녀수, 사회적 상호작용, 도덕성 변수 등이 비공식적 지원활동에 정적으로 나타난 반면 연령은 부적인 영향을 미치는 것으로 나타났다. 본 연구는 장ㆍ노년기의 공식적ㆍ비공식적인 지원활동이 중요한 사회적 활동으로서, 이러한 지원활동이 모두 생성감을 충분히 발달시킬 수 있는 중요한 역할을 담당하고 있음을 실증적인 검증을 통해 밝혀냈다는 점에 시사점이 있다고 말할 수 있다. 또한 국내연구로는 최초로 장ㆍ노년기의 공식적ㆍ비공식적인 지원활동과 생성감 간에 쌍방적 관계를 검증해 보았다는 점에 연구의 의의가 존재한다고 말할 수 있다. This study sought to analyze bilateral relationships between formal/informal helping activities of mature and senior age groups and generativity. While the study of formal helping activities focused on donation and volunteering, the study of informal support activities aimed to examine helping for adult children, friends, neighbors and relatives. To meet the study's objectives, we collected 625 questionnaire surveys from mature and senior groups (ages ranging from 55 to 74) in Seoul. The results showed that donations had a unilateral relationship with generativity. Concerning exogenous variables, the study showed that income had positive effects on donations. It revealed that volunteering had bilateral relationships with generativity. The study found that the number of children had negative impacts on volunteering, whereas age and health showed otherwise. Finally, we found that informal helping activities had bilateral relationships with generativity. Concerning exogenous variables, the study found that the number of children, social interaction and morality had positive effects on informal helping, but age had not. The study implies that helping activities of mature and senior groups are important for generativity. As the first domestic study that verifies the bilateral relationship between helping activities of mature and senior groups and their generativity, the study is significant.

디지털 네이티브 세대의 미디어 이용행태에 관한 탐색적 연구

고흥석(Heungseok Koh),신중현(Joonghyun Shin) 한국콘텐츠학회 2018 한국콘텐츠학회논문지 Vol.18 No.3

이 연구는 초고속 인터넷 환경에서 세계 최고 수준의 디지털 네이티브(digital native)세대를 형성하고 있는 한국적 현실에서 이들의 미디어 이용행태에 대한 종합적인 이해를 위해 시작됐으며, 미디어 동시이용 행태에 대한 한국적 디지털 네이티브의 속성을 파악하고자 했다. 이를 위해 2015년도 〈한국미디어패널〉 데이터를 기반으로 디지털 네이티브 세대에 해당하는 10대 청소년들의 시간대에 따른 공간적 속성과 이용매체, 동시이용 형태 등에 대해 다중대응분석을 실시하였다. 연구결과 한국의 디지털 네이티브 세대라고 할 수 있는 10대 청소년의 경우, 시간적, 공간적 매체이용은 매우 균질한 형태를 띠고 있으며, 미디어 동시이용비율도 제한된 형태로 나타났다. 이 연구는 추후 다양한 세대 간 비교 연구를 통해 보다 총체적인 미디어 이용행태연구의 필요성을 제기하고 있다. The study aimed to explore media use by digital natives in Korea. To date, Korea is a country that has both the highest level of digital natives and fastest Internet access in the world. The study also intended to deeply understand the simultaneous activity use of different media and determined the characteristics of Korean digital natives. Based on Korea Media Panel Data for 2015, analyses of the digital natives traits of time-space, media use, and simultaneous use of media were made through a statistic multi-correspondent method. The results showed that spatial attribute and media use of digital natives are homogeneous in pattern and the degree of simultaneous use of media seems to be limited in type. Moreover, the study suggested the new concept of digital natives media use and the need for various studies showing the relationship between media use and the Internet generation.

Power Losses Reduction via Simultaneous Optimal Distributed Generation Output and Reconfiguration using ABC Optimization

Jasrul Jamani Jamian,Wardiah Mohd Dahalan,Hazlie Mokhlis,Mohd Wazir Mustafa,Lim Zi Jie,Mohd Noor Abdullah 대한전기학회 2014 Journal of Electrical Engineering & Technology Vol.9 No.4

Optimal Distributed Generation (DG) output and reconfiguration are among the well accepted approach to reduce power loss in a distribution network. In the past, most of the researchers employed optimal DG output and reconfiguration separately. In this work, a simultaneous DG output and reconfiguration analysis is proposed to maximize power loss reduction. The impact of the separated analysis and simultaneous analysis are investigated. The test result on the 33 bus distribution network with 3 units of DG operated in PV mode showed the simultaneous analysis gave the lowest power loss (global optimal) and faster results compared to other combined methods. All the analyses for optimizing the DG as well as reconfiguration are used the Artificial Bee Colony Optimization technique.

Power Losses Reduction via Simultaneous Optimal Distributed Generation Output and Reconfiguration using ABC Optimization

J.J. Jamian,M.W. Mustafa,H. Mokhlis,M.W. Mustafa,Z.J. Lim,M.N. Abdullah 대한전기학회 2014 Journal of Electrical Engineering & Technology Vol.9 No.4

Optimal Distributed Generation (DG) output and reconfiguration are among the wellaccepted approach to reduce power loss in a distribution network. In the past, most of the researchersemployed optimal DG output and reconfiguration separately. In this work, a simultaneous DG outputand reconfiguration analysis is proposed to maximize power loss reduction. The impact of theseparated analysis and simultaneous analysis are investigated. The test result on the 33 bus distributionnetwork with 3 units of DG operated in PV mode showed the simultaneous analysis gave the lowestpower loss (global optimal) and faster results compared to other combined methods. All the analysesfor optimizing the DG as well as reconfiguration are used the Artificial Bee Colony Optimizationtechnique.

제로에너지 커뮤니티 구현을 위한 동시냉난방 히트펌프기반 지역냉난방 시스템의 에너지 저감 효과 분석

최원종,박경은,강소형,홍주영,김민휘 한국건축친환경설비학회 2023 한국건축친환경설비학회 논문집 Vol.17 No.6

The energy transition from fossil fuels to renewable energy technologies is getting important to achieve carbon neutrality in 2050. This research investigated the energy saving potential of simultaneous heating and cooling heat pump based next generation district heating and cooling systems for a zero energy community. For this purpose, four university campus buildings in Seongnam-si, Gyeonggi-do was selected as a case study. In this paper, the campus thermal load and electric energy consumption was modeled by DesignBuilder software, and Design-Expert software was used to calculate the COP of heat pump. As a result, it was found that the proposed heat pump integrated with district heating and cooling system can reduce 23.0% of electricity consumption compared with a conventional air source heat pump system and 9.5% of that compared with ground source heat pump system, respectively.

Scalable and simultaneous generation of homogeneous acid Co(III) and base Co(I) electrocatalysts using a divided electrolyzer

G. Muthuraman,S. Balaji,문일식 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.58 No.-

A scalable and simultaneous synthesis of Co(III) (Co2(SO4)3) and Co(I) ([Co(I)(CN)5]4−) electrocatalysts using a divided electrolyzer is reported for the first time. The overpotential gain of oxygen evolution reaction (OER) by high concentration of an acid and hydrogen evolution reaction (HER) by high concentration of a base was utilized for this new state-of-the art electro-syntheses. Difference in generation rate between acid electrocatalyst Co(III) and base electrocatalyst Co(I) was minimized by controlling the flow of H3O+ ions from anode to cathode. Also, variation in the nature of cathode materials was found to influence the formation rate of both acid Co(III) and base Co(I) electrocatalysts. We have shown that by selecting a suitable combination of electrode pair and controlling the presence of H3O+ ions it becomes possible to synthesize 3.5 mM of Co(III) and 2.5 mM of Co(I) simultaneously in both compartments of a divided electrolytic cell. This achievement on the hitherto unreported development in electrocatalyst synthesis strategy is the first of its kind in divided electrolytic cells.

Scalable and simultaneous generation of homogeneous acid Co(III) and base Co(I) electrocatalysts using a divided electrolyzer

Muthuraman, G.,Balaji, S.,Moon, I.-S. THE KOREAN SOCIETY OF INDUSTRIAL AND ENGINEERING 2018 JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY -S Vol.58 No.-

<P><B>Abstract</B></P> <P>A scalable and simultaneous synthesis of Co(III) (Co<SUB>2</SUB>(SO<SUB>4</SUB>)<SUB>3</SUB>) and Co(I) ([Co(I)(CN)<SUB>5</SUB>]<SUP>4−</SUP>) electrocatalysts using a divided electrolyzer is reported for the first time. The overpotential gain of oxygen evolution reaction (OER) by high concentration of an acid and hydrogen evolution reaction (HER) by high concentration of a base was utilized for this new state-of-the art electro-syntheses. Difference in generation rate between acid electrocatalyst Co(III) and base electrocatalyst Co(I) was minimized by controlling the flow of H<SUB>3</SUB>O<SUP>+</SUP> ions from anode to cathode. Also, variation in the nature of cathode materials was found to influence the formation rate of both acid Co(III) and base Co(I) electrocatalysts. We have shown that by selecting a suitable combination of electrode pair and controlling the presence of H<SUB>3</SUB>O<SUP>+</SUP> ions it becomes possible to synthesize 3.5mM of Co(III) and 2.5mM of Co(I) simultaneously in both compartments of a divided electrolytic cell. This achievement on the hitherto unreported development in electrocatalyst synthesis strategy is the first of its kind in divided electrolytic cells.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Scalable synthesis of two electrocatalysts in a single divided electrolyzer. </LI> <LI> Extended potential window by highly alkaline medium makes more room to generate an electrocatalyst in cathodic half-cell. </LI> <LI> Membrane orientation and suitable cathode material makes higher concentration of two electrocatalysts. </LI> <LI> Scalable electrocatalysts Co(III) — 3.5mM and Co(I) — 2.5mM was achieved under given conditions. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

2 축 동시구동을 통한 원호경로 생성 방법

이동목(Dong-Mok LEE),이훈희(Hoon-Hee LEE),양승한(Seung-Han YANG) 대한기계학회 2012 대한기계학회 춘추학술대회 Vol.2012 No.11

For evaluating the relative motion of two axes under simultaneous movement, the most preferred measurement system is the ball bar system where circular measurement path is required. In this paper, a circular path generation technique during simultaneous two axes movement for the ball bar measurement in a five axis machine tool is presented. The technique is applicable for all machine tools irrespective of their structural configurations. Mathematical equations with measurement conditions and machine information as parameters are derived for two cases following the suggested technique.

2 축 동시구동을 통한 볼바 측정용 원호경로 생성 방법

이동목(Dong-Mok Lee),이훈희(Hoon-Hee Lee),양승한(Seung-Han Yang) 대한기계학회 2013 大韓機械學會論文集A Vol.37 No.6

5 축 공작기계에서 회전축을 포함한 동시 구동에 대한 볼바 측정용 원호 경로 생성 및 NC 데이터 작성은 CAM 소프트웨어를 사용할 경우 공작기계의 구조, 사용되는 동시 구동축 종류 및 볼바 셋업 조건 등 다양한 시스템 구조와 변경된 측정 환경에 따라 매번 많은 시간과 노력을 수반해야 한다. 본 연구는 소프트웨어의 의존 없이 다양한 볼바 측정 조건에서도 항상 사용할 수 있는 두 축 동시 구동을 통한 원호 경로를 생성하는 기법을 소개하며 임의의 공작기계의 구조 및 동시 구동축의 종류, 볼바 셋업 조건 등을 고려한다. 제안한 원호 생성 기술을 이용하여 세 가지의 사례에 대한 원호 경로 생성용 수학식을 제시하며 더불어 볼바 부품간 물리적 간섭을 방지하기 위한 측정 가능성 사전 검사 방법을 제안한다. 제안한 기법의 타당성은 두 개의 회전축을 이용한 볼바 측정 실험을 통해서 검증한다. Circular path generation for ball bar measurement using the simultaneous movement of two axes with at least one rotary axis requires the execution of CAM software. However, a change in the machine type or measurement condition requires a new execution of the CAM software, which is cumbersome. This paper presents a circular path generation technique that does not require CAM software and is applicable to different types of driving axes with an arbitrary structural configuration of machine tools and any ball bar setup condition. Mathematical equations are derived for three cases using the proposed technique. In addition, to inspect the measurement feasibility for avoiding physical interference among the ball bar parts, a tilting angle calculation is proposed. The validity of the proposed technique was verified by performing a ball bar experiment with A and C as the simultaneous axes of a five-axis machine tool.

전후세대 `언어`의 문제와 모더니티 -박인환의 경우

김용희 ( Kim Yong Hee ) 한국언어문화학회(구 한양어문학회) 2012 한국언어문화 Vol.0 No.49

The reality faced by the postwar generation writers was a situation of an ideological confrontation between linguistic hybrids and cultural boundaries. After the experience of extreme fear called a war, a thorough denial of the existing values took place. Within the existential worries, the writers of modernism became immersed in an agony about the “modernity” of having to establish anew a modern era not by using traditional parochial languages but with a new language of “intelligence.” It can be argued that, more than anything, Park In-hwan came to encounter a lot of modern books as he ran Mariseosa Bookstore and that his agony about the “modernity” became more intense. However, living in an era of dual languages of Korean and Japanese, his poems were fraught with crude style translations, in other words, Japanese style Chinese characters. Moreover, his worship of the Western books drove his ideology to “notions” and a “world of discernment,” his poetry soon became filled with notational and abstract words. However, the Korean language as such an artificial language and translation-style language was an “intellectual” pursuit of succeeding into the history of Korean literature the new culture of the time as a new “cultural language.”Kanji translations, new notational language and the world of discernment, and the expansion of ambiguous symbols and images illustrate to us a new aesthetic modernity as a resistance to the world of traditional poetry of the time. The symbolic world and decadent mood have become an opportunity for drawing in Park In-hwan`s poetry into a world of aesthetics and the site of secular simultaneity of poetry. Ultimately, through all this, Park In-hwan wanted to secure modernity of poetry within a changing society.