• Journal of the KSME
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• v.22 no.3
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• pp.165-168
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• 1982

창원기계공업기지와 창원기술인회의 발족 1. 창원기계공업단지의 태동 2. 대단위기계공업단지의 뜻 3. 오늘의 현황 4. 창원기계공업단지의 기적 5. 창원기술인회

• Bulletin of the Korean Chemical Society
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• v.19 no.1
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• pp.119-120
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• 1998

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2019.05a
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• pp.176-178
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• 2019

부산항은 초미세먼지 기준으로 세계 10대 오염항만으로 보고되어, 우리나라 항만도시의 대기오염도가 심각한 수준임을 알 수 있다. 이처럼 선박, 하역장비, 대형화물차 등 항만오염배출원에서 발생하는 미세먼지는 항만지역 내외를 가리지 않고 배후도시 지역민의 삶의 질에 큰 영향을 미친다. 이외 하역장비, 대형화물차 등 항만운영으로 인해 발생하는 소음 또한 지역민 주거생활환경에 영향을 미치는 주요 요인이다. 이 연구는 부산항 신항의 배후도시인 창원시 항만배후지역(웅동생활권)의 주민이 겪고 있는 환경피해실태를 파악하고자 항만배후지역의 생활환경 중 체감오염도가 높은 미세먼지($PM_{10}$)와 소음에 대한 기초 영향조사 수행하였다. 연구결과 신항(창원) 배후지역의 미세먼지($PM_{10}$) 농도는 인근 지역인 창원시 경화동, 부산시 녹산동보다 높게 조사되었고, 경남지역 대기측정소(21개)의 평균보다 최대 $25{\mu}g/m^3$ 이상 높게 측정 되었다. 또한, 신항(창원) 배후지역의 소음도는 환경관리기준을 초과하는 것으로 조사되었다.

• Korean journal of dermatology
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• v.56 no.10
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• pp.640-659
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• 2018

• Bulletin of the Korean Chemical Society
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• v.19 no.7
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• pp.797-799
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• 1998

• Bulletin of the Korean Chemical Society
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• v.18 no.4
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• pp.441-442
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• 1997

• Journal of the Korea Institute of Information and Communication Engineering
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• v.12 no.1
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• pp.137-142
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• 2008

The band-gap reference voltage generator which can be operated by low voltage is proposed in this paper. The proposed BGR circuit can be realized in logic process by using parasitic NPN BJTs because a $Low-V_T$ transistors are not necessary. The proposed BGR circuit is designed and fabricated using $0.18{\mu}m$ triple-well process. The mean voltage of measured VREF is 0.72V and the three sigma$(3{\sigma})$ is 45.69mv.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.11 no.8
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• pp.1544-1551
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• 2007

A start-up circuit of the bandgap reference voltage generator of cascode current mirror type with wide operating voltage range and enhanced power-up characteristics is proposed in the paper. It is confirmed by simulation that the newly proposed start-up circuit does not affect the operation of the bandgap reference voltage generatory even though the supply voltage(VDDA) is higher and has more stable power-up characteristic than the conventional start-up circuit. Test chips are designed and fabricated with $0.18{\mu}m$ tripple well CMOS process and their test has been completed. The mean value of measured the reference voltage(Vref) is 738mV and The three sigma value($3{\sigma}$) is 29.88mV.

• Journal of Hydrogen and New Energy
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• v.30 no.4
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• pp.356-361
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• 2019

Since the government announced the roadmap to revitalize the hydrogen economy, we are constantly making the effort to expand the use of fuel cell electric vehicles (FCEV) and hydrogen charging stations. There is however a significant issue to build and operate the hydrogen charging station due to the lack of the profit model. Many researchers believe that the supply of FCEV will be increased in the near future and finally ensure the economy of hydrogen charging stations. This study shows that the sales changes of hydrogen gas and consumption patterns by the operation of the hydrogen charging station in Changwon City. The results will be used as the evidence to support for operating the hydrogen charging station by private businesses and the validity of additional establishment of hydrogen charging stations.

• The Korean Journal of Archival Studies
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• no.78
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• pp.285-336
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• 2023

This study aims to analyze the system of official documents enacted during the modern reform period and the official documents produced in the provincial government office, scrutinizing the reality of management of the official documents that were conducted in the provincial government office at that time and organizing the characteristics. For this, I progressed this study targeting Changwon superintendent office that functioned as the modern government office among the provincial government office that existed during the modern reform period, and whose official documents produced in the government office remained relatively intact. At first, I summarized the history of Changwon area where Changwon superintendent office was installed. I investigated the geographical characteristics and the historical background in which Masanpo port of Changwon was opened in the past history and the superintendent office was installed. Following this, I categorized the function of Changwon superintendent office from the legal perspective, and reviewed the major contents of the official documents produced in the business activity and the historical context. Finally, I compared and analyzed the system of the official documents enacted at that time and their formats, organizing the official documents produced in the provincial government office during the modern reform period and the characteristics of the system of the official documents about the provincial government office.