Streptozotocin 유발성 당뇨쥐에서 Hepatic Glucokinase 활성도에 대한 Phlorizin의 효과

김완중,이병래,배학연,조경상,홍순표 대한당뇨병학회 1989 Diabetes and Metabolism Journal Vol.13 No.2

Functionalization of Shortened SWCNTs Using Esterification

김완중,강성웅,Chil Seong Ah,Yong-Won Lee,Dong Han Ha,최인성,Wan Soo Yun* 대한화학회 2004 Bulletin of the Korean Chemical Society Vol.25 No.9

Preparation and Characterization of a Triple Layered Au-PMMA-PbSe Hybrid Nanocomposite: Manipulation of PMMA Spacer Layer by Oxygen Plasma Etching

김완중,최재봉,김상희,김애란,유동진 대한화학회 2015 Bulletin of the Korean Chemical Society Vol.36 No.8

A hybrid triple-layered nanocomposite structure of plasmonic gold (Au), polymethylmethacrylate (PMMA), and lead selenide (PbSe) quantum dot (QD) on quartz substrate was developed. The fabricated nanocomposite exhibited well-established triple-layered morphology (Au-PMMA-QD on quartz), but had different coupling distances between Au, on the bottom, and PbSe QD, on the top. Control of the coupling distances in terms of different thicknesses of a PMMA spacer layer was examined by etching for different durations, from 7 to 30 min. The corresponding thicknesses of the PMMA layer ranged from ~3.8 to ~88 nm at an etching rate of 2 nm/min. Atomic force microscopy measurements showed that the well-established triple-layered hybrid nanocomposite structure had the heights of ~15 nm (Au) and ~4 nm (PbSe QD). X-ray photoelectron spectroscopy results revealed the characteristic peaks assigned to each nanoparticle and polymer layer. The results illustrated the triple-layered structures with different PMMA spacer layers, with no cross interference between the layers.

미세구조 제어에 의해 제조한 자체 강인화 질화규소 세라믹의 기계적 성질과 미세조직

김완중,이영규,조원승,최상욱 한국세라믹학회 1999 한국세라믹학회지 Vol.36 No.4

The self-toughened Si3N4 ceramics where needle-like coarse ${\beta}$-Si3N4 grains were dispersed within fine-grain-ed matrix were prepared via hot-prssing at 1730$^{\circ}C$ for 2 h using 5 vol% ${\beta}$-Si3N4 whiskers as a seed. In this study the microstructures and mechanical properties of self-toughened Si3N4 ceramics were investigated. The flexural strength of self-toughened Si3N4 ceramics was increased from 600-800 MPa of the Si3N4 monolith to 830-1025 MPa. The KIC was also increased from 4.0-5.0MPa$.$m1/2 of the Si3N4 monolith to 5.8-6.5MPa$.$m1/2$.$The needle-like coarse Si3N4 grains in self-toughened ceramics were considered to induce various toughening mechanisms including the crack deflection pull-out and bridging and to contribute to KIC improvement. In ad-dition to toughening mechanisms the KIC improvement was considered to be partially indebted also to the orien-tation of large ${\beta}$-Si3N4 grains and to the promoting effect of ${\beta}$-Si3N4 whiskers on the ${\alpha}$ to ${\beta}$ transtion.

모세의 출생 이야기

김완중,김철하,박요섭,배요한,장로회신학대학교기독교교육연구원 장로회신학대학교 기독교교육연구원 2014 교육교회 Vol.434 No.-

한국 신재생에너지 산업의 지역별 성장 격차: 동태적 변이할당분석

김완중 한국아시아학회 2022 아시아연구 Vol.25 No.1

Based on new industry classification published by Korean national statistical office, I showed regional growth in Korea’s renewable energy industry and structural change in the industry. Also to find the growth factors of the industry, I analyzed the change of the number of workers over the research period(2016-2019) using dynamic shift-share analysis. The number of workers in the industry increased by 8.4% for the period. The overall growth rate in the industry was higher than growth rate(6.9%) in Korea’s total number of workers but varied depending on sectors. To say, the growth rate in generation and heat supply sector and service sector was higher than other sectors, manufacturing sector and construction sector. The growth rate also varied depending on regions; Sejong, Kangwon, Jeonnam, Incheon, Chungbuk, Chungnam, Jeju showed higher growth than others. It was found that 1) measured with the number of workers, service sector and manufacturing sector was main driving force in Korea’s renewable energy industry; 2) construction sector and service sector were concentrated in Seoul and Gyeonggi; 3) manufacturing sector and generation and heat supply sector were concentrated in Chungnam and Gyeonggi. According to dynamic shift-share analysis, followings were found; 1) nation effect played a positive role in the growth of manufacturing sector and construction sector for all regions, 2) both nation effect and industry-mix effect also played a positive role in the generation and heat supply sector and service sector, 3) the role of region effect(competitive effect and allocation effect) in the growth varied depending on sectors and regions – for example, while region effect for Jeonnam positively affected the growth of its all sectors, the effect for Gyeongnam negatively affected the growth of its all sectors. It was also found that for the growth of the sectors, competitive effect rather than allocation effect was main driving force in making the overall region effect. According to the results of allocation effect, some region’s resource(workers) were properly allocated in accordance with its competitiveness in the industry, but other region’s resource allocation were mismatching to its competitiveness. This study show that although nation effect and industry-mix effect also matter for the development of the industry, region effect(especially competitive effect) is more important. 본 연구는 최근 통계청이 발표한 특수분류표에 근거하여 신재생에너지 산업을 4개분야(제조업, 건설업, 발전 및 열공급업, 서비스업)로 분류한다. 그 분류에 따라 전국 17개 지역의 신재생에너지산업의 성장률 및 구조변화를 파악하고 해당 분야에 있어 각 지역의 성장요인을 동태적변이할당분석을 통해 분석하였다. 분석기간(2016-2019년) 신재생에너지산업의 종사자 수는 전국적으로 8.4% 증가하여 전국 전산업의 총종사자 수 증가율 6.9%를 상회하였는데, 분야별로 성장률에서 큰 차이가 있었다. 즉 발전 및 열공급업과 서비스업의 성장률이 신재생에너지산업 전체 성장률이나 전국의 총종사자수 성장률 보다 더 높았다. 또한 지역별로는 세종, 강원, 전남, 인천, 충북, 충남, 제주에 있어서 성장률이 높았다. 종사자 수 비중을 기준으로 할 때 분석기간 한국의 신재생에너지 산업은 서비스업과 제조업이 주축을 이루고 있었다. 또한 신재생에너지 건설업과 서비스업은 서울과 경기에 집중되어 있었으며, 제조업은 경기, 발전 및 열공급업은 충남과 경기에 집중되어 있었다. 신재생에너지 중 제조업과 건설업은 모든 지역에서 전국적 요인에 의해 플러스 성장을 하였으나, 산업요인에 의해서는 마이너스 성장을 한 것으로 나타났다. 한편 발전·열공급업과 서비스업 분야는 대부분 지역에서 전국적 요인과 산업적 요인이 성장에 긍정적으로 작용하였다. 지역적 요인에 의한 성장은 지역별로 그리고 분야별로 큰 차이를 보였는데, 4개 분야 모두에서 지역적 요인에 의해 플러스 성장을 보인 지역(전남)이 있는가 하면, 4개분야 모두에서 지역적 요인에 의해 마이너스 성장을 보인 지역(경남)도 있었다. 한편 대부분 지역에 있어서 지역요인(경쟁효과,배분효과) 중 배분효과 보다는 경쟁효과가 지역효과 결정에 있어 주도적 역할을 하는 것으로 나타났다. 또한 경쟁력이 있는 신재생에너지 분야에 자원(인력)을 특화하고 있는 지역이 있는가 하면, 경쟁력이 없는 신재생에너지 분야에 적정한 수준보다 지나치게 많은 자원을 배분하고 있는 지역도 발견되었다. 본 연구에 따르면 신재생에너지산업이 발전하기 위해서는 국가적 요인, 산업적 요인도 중요하지만 특히 지역 자체의 경쟁력을 개선하는 것이 무엇보다도 중요한 것으로 나타났다.

70년대 농정과의 관계에서 살펴본 새마을운동의 재정의

김완중 한국농촌경제연구원 2019 농촌경제 Vol.42 No.3

Most rural development projects had been included into the projects of SaemaulUndong, representative Korean rural development programme in 1970s. As theresult, it is very difficult for researchers to distinguish between government policyand the movement in the period. However, The movement in 1980s has notbeen linked to rural development policy. The change of programme compositionin 1980s made researchers confused in defining and characterizing the movement. In this paper, I tried to define the movement, considering the relationship betweenrural development policy and the movement in those times. I define themovement in 1970s as ‘compulsory mobilization movement to the government’srural development projects’ or ‘compulsory mobilization of labor and capital forrural development’. On the other hand, I differently define the 1980s’ movementfrom the 1970s’ movement. Considering change of programme composition, I definethe movement in 1980s as ‘compulsory mobilization of the public for publicityof government policy’ because rural development projects were excludedfrom the movement in 1980s. 70년대 농촌 및 농업관련 대부분 사업들이 새마을운동 사업에 포함되었던 관계로 당시 새마을운동과 농정을 구분하기 어렵다. 반면 80년대 새마을운동 주체가 정부에서 민간으로 전환된 이후 새마을운동 사업에는 농정관련 사업이 포함되지 않았다. 이렇듯 새마을사업의 시대별 변화는 새마을운동의 정의와 성격 확정을 어렵게 만든다. 새마을운동에 대한 정의는 운동의 목표, 이념, 운영체계, 그리고 운동의 대상인 사업을 포괄할 수 있어야 한다. 본고는 70년대 농촌 새마을운동이 가지는 정부 주도적 성격과 농정과 밀접한 관계 등을 고려하여 70년대 농촌 새마을운동을 ‘70년대 농정추진 동원운동’ 또는 ‘농촌의 70년대식 잘살기 동원운동’이라고 정의한다. 하지만 80년대 농촌 새마을운동은 ‘농촌의 80년식 잘 살기 운동’이었다라고 정의하지 않는다. 왜냐하면 80년대 농촌 새마을운동의 사업 내용이 소득증대 등 당시 농촌 현안에서 크게 벗어나 있었기 때문이다. 이를 고려하여 80년대 농촌 새마을운동은 ‘80년대식 국민동원운동’으로 정의한다.

동기능부전증후군의 가족내 발현

김완중,심재준,김현숙,이태희,정승묵,임달수,홍석근,최락경,황흥곤 대한심장학회 2003 Korean Circulation Journal Vol.33 No.12

정상 성인에서 수면박탈이 수면구조와 피로감에 미치는 영향

김완중,신석철,왕성근 충남대학교 의과대학 지역사회의학연구소 1993 충남의대잡지 Vol.20 No.1

To identify the effects of sleep deprivation on sleep structure polysomnography was performed for 10healthy young adults. Visual analogue scale was also used to identify the effects of sleep deprivation on fatigue, mood, and sleepiness. The subjects were young adults, ranging in age from 21 to 26 years, without past or present histories of significant medical, neurological, or psychiatric illness as well as no current major sleep disturbances or parasomnias. After one adaptation night, each subject was recorded polysomnography in the sleep laboratory. Sleep records were analyzed according to the criteria of Rechtschaffen and Kales every 20 seconds, and tried paired-t-test and correlation. The results were summarized as follows. 1. After one night of total sleep deprivation, compared with the baseline, TST, stage 3, stage 4, and SWS were significanlty increased, and sleep latency was significantly shortened, and return to normal level after 3 nights of recovery. 2. The relative value(%) of stage 3, stage 4, and SWS were positive correlation between the baseline and the first recovery night. 3. Compared with the baseline, reaction time was significantly delayed in the first recovery night, and returned to normal level after 3 days of recovery. 4. The feeling of fatigue, mood, and sleepiness were significantly worsened in the first day after TSD, and returned to normal level after 3 days of recovery.

수치모델을 이용한 중소규모 하천의 수질관리

김완중,정팔진 全北大學校 1995 論文集 Vol.40 No.-

The problems of dongjin river were multi-branchs and control of flow rate. Inverstigated water quality of the mainstream and Cheongup stream, water quality was little changed before and after choenup stream joined. In this paper, Qual-2E model was applied for water quality management in the dongjin river and Cheongup stream at 2004. The results obtained could be summarized as follows: - in oder to achive the water quality aim at 2004, treatment plans of BOD removal should be 70% in upstream of the dongjin river, 40%-Cheongup stream. - in order to water quality of dongjin river, flow rate of upstream sould be controls to be closely connected with discharge of the seomjin river-dam.