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강대익,김영민,이상준 한국IT정책경영학회 2022 한국IT정책경영학회 논문지 Vol.14 No.3
The Paris Agreement was adopted at the General Assembly of the Parties to the United Nations Framework Convention on Climate Change held in Paris on December 15, 2015, and after deliberation by the 38th State Council on August 30, 2016, the 346th National Assembly (regular session) on November 3, 2016 After obtaining the ratification agreement of the 11th plenary session, on November 3, 2016, the Secretary-General of the United Nations deposited the instrument of ratification, and on December 3, 2016, the “Paris Agreement” was promulgated for the Republic of Korea to enter into force. According to the Paris Agreement, all Parties are obliged to periodically submit national reports in line with greenhouse gas reduction targets. In October 2021, the Republic of Korea submitted to the United Nations Framework Convention on Climate Change a proposal to raise the 2030 National Greenhouse Gas Reduction Target (NDC), which includes the contribution to domestic reduction using forests. Therefore, the MRV statistical system for carbon neutral policy support according to the 2050 Carbon Neutral Private Agreement (October 2021) is required. In this study, a measurable (M)-reportable(R)-verifiable(V) system for forest carbon emission and absorption was presented in order to prepare an accurate and reliable forest carbon statistical calculation system in the forest sector
철도 환경에 적합한 다목적 센서 노드의 배터리운영을 위한 쏠라 시스템 개선에 관한 연구
김영민,강대익,이상준,김현기 한국IT정책경영학회 2022 한국IT정책경영학회 논문지 Vol.14 No.3
It is difficult to apply commercial power to a sensor system for diagnosing the safety of railroad facilities in a railroad operating environment. Therefore, the measurement system is configured using the solar system and the battery. In the case of the existing solar controller, the battery voltage is applied to the solar panel when sunlight is not secured, and the battery operation time is relatively reduced. Battery usage efficiency was improved by improving the solar system, and it was verified through testing.
산림탄소 통계 산출 시 원천데이터 적용방안에 관한 연구
이창길,강대익,김영민 한국IT정책경영학회 2022 한국IT정책경영학회 논문지 Vol.14 No.3
본 연구에서는 산림탄소 통계 산출을 위한 원천데이터를 토지이용변화 매트릭스, 임상(수종)별 임목축적, 임 상(수종)의 부후 등급별 고사량, 임상(수종)별 낙엽층의 탄소량, 임상(수종)별 토양의 탄소량, 목재 제품별 생산 량, 산불 피해지의 수종(임상)별 연소량, 신규조림지의 임목축적, 재조림지의 임목축적, 산지전용에 의한 벌채 량, 공간정보기반 경영활동실적, 공간정보기반 보호림 면적, 수종별 임목축적 및 연간 생장량과 관련된 시스템, DB테이블, 컬럼명 등으로 분석하여 적용할 수 있는 방안을 도출하였다.
우리나라 산림지부문 입목바이오매스 탄소저장량의 불확도 평가
임종수,신중훈,강대익 한국기후변화학회 2022 한국기후변화학회지 Vol.13 No.6
The Paris Agreement recommends its member parties to enhance transparency in Greenhouse Gas (GHG) inventory by sector. IPCC guidelines provide recommendations for reducing uncertainties of GHG emissions and removals for the accurate assessment. Thus, this study aimed to assess the uncertainties of estimated carbon stocks for living biomass in the forestry sector. Living biomass is an essential indicator for monitoring GHG removals in the LULUCF sector. This study made a comparative assessment of the uncertainty by applying error propagation methods (simple multiplication, addition and subtraction) and the Monte Carlo Simulation (MCS) suggested in the IPCC guidelines. The findings showed that the overall uncertainty for the simple multiplication in the error propagation was found to be as high as ±28.0% due to higher uncertainties of country-specific emission factors. In contrast, the overall uncertainty was as low as ±3.6% for the addition and subtraction considering the sensitiveness of activity data and emission factors as explanatory variables, while that for the MCS was at around ±6.0%. Despite the slightly higher uncertainty for MCS compared with addition and subtraction, it is reasonable to apply uncertainty assessment using MCS considering the international reliability and comparability. Additionally, since living biomass causes various error sources including measurement error and volume equations by tree species, there is a need for research to assessing different error sources for uncertainty.
Effects of NaCl and Temperature on the Sensory Characteristics of Natural Flavor Enhancers
정서진,정진아,김부원,강대익,Chung, Seo-Jin,Chung, JinA,Kim, BooWon,Kang, Deik Korean Society of Food Science and Technology 2015 한국식품과학회지 Vol.47 No.5
The objectives of this study were to evaluate the sensory properties of various natural flavor enhancers (NFEs) and to understand the effects of NaCl and temperature on the sensory characteristics of these NFEs. Descriptive analysis was conducted to evaluate six types of NFEs: yeast extract-based NFE, three; fish sauce-based NFE, one; soy sauce-based NFE, one; and hydrolyzed peptide NFE-based, one. The effects of NaCl (no addition vs. addition) and temperature ($20^{\circ}C$ vs. $55^{\circ}C$) were also evaluated. The results showed that the overall flavor intensity and sensory properties of the NFEs differed greatly depending on the NFE source. Two of the yeast extract-based NFEs elicited higher umami intensity than the other NFEs. Addition of NaCl increased some of the savory-related flavors and the perceived viscosity of the sample. Aroma intensities, in general, were enhanced at the higher temperature, whereas flavor, aftertaste, and mouthfeel attributes were perceived to be stronger at the lower temperature.