• KDI Journal of Economic Policy
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• v.10 no.3
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• pp.139-166
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• 1988

본고(本稿)는 공적연금제도(公的年金制度)의 재정운용방식(財政運用方式)에 대해 고찰하고, 현행 국민연금제도(國民年金制度)의 재정추계(財政推計)를 위한 모형(模型)과 추계방법(推計方法)을 제시하고, 1988년부터 1992년까지의 추계결과(推計結果)를 분석하였다. 또한 현행제도의 문제점을 지적하고, 제도의 수정(修正)에 입각 할 때의 재정추계효과(財政推計效果)를 분석하였다. 연금재정운용방식(年金財政運用方式)으로서의 적립방식(積立方式)과 부과방식(賦課方式) 중 어떤 상황하(狀況下)에서 어느 방식(方式)이 유리(有利)한지에 대한 분석(分析)에서, 연금급여수준(年金給與水準)이 동일(同一)하다는 전제하에서 이자율(利子率)이 인구성장률(人口成長率)과 소득증대율(所得增大率)의 합(合)보다 큰 경우 적립방식(積立方式)이 유리하고, 그 반대의 경우 부과방식(賦課方式)이 유리하다는 것을 도출하였다. 추계결과(推計結果) 적립기금규모(積立基金規模)는 1988년말 약 5,800억(億)원에서 1992년말 4조(兆) 6,750억(億)원으로 연평균(年平均) 68.5%의 증가율을 나타낼 전망이며, 이식률수준(利殖率水準)에 따른 민감도분석(敏感度分析)에서 기금운용(基金運用)의 중요성을 보았다. 현행제도의 개선(改善)을 위해 갹출료산정기초(醵出料算定基礎)로서의 보수재산정(報酬再算定)과 연금급여산식(年金給與算式)의 재산정(再算定)을 제안하고, 이러한 수정(修正)에 의한 추계결과(推計結果), 갹출료수입(醵出料收入)의 증가(增加), 반환일시금(返還一時金)의 증가(增加), 급여지출(給與支出)의 증가(增加)로 나타났으며, 이에 따른 적립기금규모(積立基金規模)는 1988년 5,800억(億)원에서 7,240억(億)원으로, 1992년 4조(兆) 6,750억(億)원에서 5조(兆) 4,500억(億)원으로 개선되는 효과를 보았다.

• Journal of Broadcast Engineering
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• v.25 no.1
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• pp.67-82
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• 2020

This study is based on the screen composition(shot size, split screen, candidate placement, lighting, stage) that fits the discussion process (round table, sitting, standing method) adopted from the 19th presidential candidates' TV joint discussion to analyze the adequacy and limitations of the methodology(design, candidate background, etc.). In addition, the progress and screen composition of the 45th US Presidential Candidates Debate in 2016 and the 25th Presidential Candidates of France TV Joint Debate in 2017 have been analyzed to compare and contrast the methods used in Korea. Through this, we apply the screening method to the 20th Presidential Candidate TV Joint Debate, which will be held in 2022, to fit the fixed discussion process that can fully identify candidates' qualities, policies, and vision.

• Applied Chemistry for Engineering
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• v.27 no.6
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• pp.577-582
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• 2016

In this study, we compared and analyzed the flame retardancy and mechanical properties of three different rigid polyurethane foams (RPUF) containing noble non-halogen phosphorus flame retardant (BHP-RPUF) or halogen-phosphorus flame retardant (TCPP-RPUF) or no flame retardant material (Pure-RPUF). The noble phosphorus-based flame retardant, bis(3-(3-hydroxypropoxy)propyl) phenyl phosphate (BHP), was synthesized by the reaction between disodium phenyl phosphate and 3-chloro-1-propanol. Through universal testing machine (UTM) experiments, the compressive strength of BHP-RPUF was similar to that of TCPP-RPUF. From the result of foam morphology analysis, it was confirmed that BHP-RPUF has the lowest thermal conductivity of $0.023W/m{\cdot}K$. We also measured the size of air bubbles using reaction velocity and SEM, and analyzed how they affect the thermal conductivity. In addition, the heat-resisting property was investigated through TGA analysis. The limited oxygen index (LOI) test confirmed that BHP had the ability to increase the flame retardancy of RPUF.

• Journal of the Korean Society of Propulsion Engineers
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• v.20 no.6
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• pp.11-17
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• 2016

BTTN and TMETN are representative energetic plasticizers used for various propellants. However these compounds are sensitive relatively. So, in order to develop insensitive energetic plasticizer, this study attempted to synthesize derivative of triazole, 4,5-bis(azidomethyl)-(2-methoxyethyl)-1,2,3- triazole (DAMETR). Also, the prepared compound was characterized by NMR, IR spectroscopy, and physicochemical properties such as glass transition temperature, melting point, decomposition temperature, density, viscosity and impact sensitivity. In addition, the heats of formation (${\Delta}H_f$) and detonation properties (pressure and velocity) of DAMETR were calculated using Gaussian 09 and EXPLO5 programs. Especially, 1-DAMETR(>50 J) was more insensitive than BTTN(1 J) and TMETN(9.2 J).

• Korean Journal of Construction Engineering and Management
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• v.13 no.5
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• pp.76-83
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• 2012

The purposes of this study are both to identify suggestions regarding the evaluation framework of construction policy performance based on the analysis of the 4th Master Plan for Improvement of Construction Technology and to provide recommendations that can be used for developing the 5th Master Plan for Improvement of Construction Technology. In order to achieve this purpose, a questionnaire was distributed to construction industry-related professionals and makes them evaluate the performance of the 4th Master Plan for Improvement of Construction Technology by performance index appropriacy, measurement appropriacy, and target level. In addition, comprehensive literature review was implemented to extract important points, which are related to policy evaluation, that can be considered factors in developing the 5th Master Plan for Improvement of Construction Technology.

• Proceedings of the Korea Water Resources Association Conference
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• 2017.05a
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• pp.427-427
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• 2017

물발자국은 국가별 실제 물소비량을 파악하고 물 부족 상황에 효율적으로 대비하기 위하여 도입된 지표로서, 제품의 생산과 서비스 전 과정에서 직접 및 간접적으로 사용되는 물의 총량을 의미한다. 선진국에서는 물 사용 패턴에 대한 인식을 제고하고자 국가, 도시, 산업분야 등 다양한 물발자국 데이터베이스를 구축하여 활용하고 있다. 그러나 우리나라의 경우, 물 수입 의존도가 높지만 물발자국 산정에 대한 연구가 부족하여 효율적인 물 관리 및 안정적인 수자원 확보를 위한 국가전략 수립에 어려움을 겪고 있다. 물발자국 산정 연구는 국가적 차원의 정확한 물 수지 계산과 수자원계획 수립에 유용한 기초자료로서 활용이 가능하다. 이에 본 연구에서는 우리나라의 제1차 및 제2차 산업의 물발자국을 산정하였으며, 산정 방법으로는 상향식 접근법과 하향식 접근법을 적용하였다. 제1차 산업의 농업계 및 축산업계의 물발자국은 단위 물발자국에 기초한 상향식 접근법과 용수사용량에 기초한 하향식 접근법을 적용하여 산정하였다. 산업별 물발자국 산정결과는 다음과 같다. 주요 농작물 생산량 및 작물 품목별 단위 물발자국을 이용한 국내 농업계 물발자국 산정 결과, 1980년부터 2014년까지의 쌀 외 18개 농작물에서 연간 78억~109억 $m^3$로 산출되었다. 반면 농업용수 사용량에 기초한 하향식 접근법을 통해 산정한 농업계 물발자국은 118억 $m^3$으로 분석되었다. 다음으로 제1차 산업의 축산업계 물발자국을 산정하였다. 2011년부터 2015년까지 주요 가축 사육두수와 지육량, 사료작물의 단위 물발자국을 활용한 축산업계 물발자국은 평균 73억 $m^3$, 축산용수사용량을 활용한 물발자국은 평균 309억 $m^3$으로 나타났다. 축산용수사용량에 기초한 분석결과가 크게 나타난 것은 축산업분야에서 간접수의 비율이 높기 때문이다. 한편 제2차 산업의 공업계는 제품생산 공정의 물 사용량, 부품 및 원료의 단위 물발자국 등 세부사항의 파악이 곤란하여 하향식 접근법을 적용하였다. 공업용수 사용량과 공업용수 오염물질의 배출부하량에 따른 물발자국 산정 결과, 연간 26억 $m^3$으로 분석되었다. 이와 같은 산업별 물발자국 산정결과를 활용하여 산업별로 차별화되는 물 이용 패턴을 분석하고 산업별 용수 수요를 파악하면 국가적으로 효율적인 수자원 관리방안을 제시할 수 있다.

• The Journal of the Korea Contents Association
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• v.19 no.5
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• pp.268-279
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• 2019

This study applied the Q methodology to the graduate students of the department of food service management in Seoul to grasp the subjective perception of customers using the big blur phenomenon and the introduction of the kiosk. As a result of the analysis, five types were derived. (N = 6): Fast payment and various order preference types, the second type (N = 6): Earning and discount benefits preference type, the third type (N = 3): Simple order preference type, The fourth type (N = 2): Employee service preference type, and the fifth type (N = 3): Safety payment preference type. In the future, the research on the Big Blur phenomenon of eating out company will be refined through more detailed Q methodological questions with analytical techniques based on extensive literature and empirical studies, and to analyze the various opinions of respondents more concretely and objectively.

• Journal of the Korean Society of Propulsion Engineers
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• v.24 no.6
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• pp.61-68
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• 2020

7-tonf turbopump real-propellant tests in Naro Space Center were conducted and high-frequency signals from an accelerometer and pressure sensors installed on the casing and the inlet/outlet pipeline of LOX pump were analyzed to estimate the structural and hydrodynamic stabilities. Waterfalls, frequency spectrums and RMS(Root Mean Square) values of the measured signals were calculated and characteristic instability frequencies by the rotating cavitation and the rear floating ring seal(F.R.S) were investigated. Static pressures of the inlet/outlet pipeline and an acceleration of the pump casing are strongly affected on pressure fluctuation induced by the rear floating ring seal in the leakage path. Despite the acceleration RMS value seems totally small, the rotating-speed-related synchronous frequency affecting the shaft instability is distinctly observed in the frequency contour.

• Journal of Korean Society of Archives and Records Management
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• v.23 no.3
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• pp.115-136
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• 2023

The purpose of this study is to discuss problems and seek improvement plans based on a critical analysis of the detailed standards for nondisclosure of 19 administrative departments in accordance with Article 26 of the Government Organization Act. To this end, the status of information disclosure-related regulations in 19 administrative departments was analyzed, and 6,094 cases of nondisclosed information were investigated and analyzed. In addition, through interviews with seven information disclosure experts, the analysis contents of this study were shared and reviewed. Furthermore, opinions on the effectiveness, problems, and system improvement areas of the detailed standards for nondisclosed information were collected. As a conclusion, three improvement measures were proposed: first, the legislation on the establishment of detailed standards for nondisclosure; second, the establishment of a system for regular substantive inspection of detailed standards for nondisclosure; and third, the improvement in the service of detailed standards for nondisclosure.

• Analytical Science and Technology
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• v.21 no.2
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• pp.135-142
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• 2008

Plasticizer and heavy metals in domestic PVC wallpaper manufactured in Korea after 2005 were analyzed to identify the contained quantity in comparison with the 2002 manufactured PVC wallpapers. Plasticizer of wallpapers was analyzed by the method KSM1991 which uses soxhlet extraction with n-hexane and GC/FID. Heavy metals were pre-treated with 0.07 mol/L hydrochloric acid (HCl) and analyzed by ICP/OES according to the EN 71-part 3 method. DEHP, DINP, DEP, acetyl tributyl citrate were identified from wallpaper. Contents of DEHP, DINP were 0.2~11.3%, 17.9~27.8% respectively in 6 wallpapers, DEP and acetyl tributyl citrate were 1.5%, 8.9% respectively in one wallpaper. Plasticizers have changed from DEHP that has possibility of hazards to DINP, DEP and acetyl tributyl citrate as compared with 2002. Heavy metals were detected under guide line from all of the wallpapers except fire-retardant wallpaper contain antimony. While PVC wallpaper was improved by use of various plasticizer, functional wallpapers such as fire-resistant wallpaper contain high antimony in this study.