Study on the Manufacturing and Properties of Self-healing EPDM/Ionomer Composites Using Dynamic Vulcanization

진우석,박성민,전준하,오정석 한국공업화학회 2021 한국공업화학회 연구논문 초록집 Vol.2021 No.-

봄내음 가득찬 무릉도원 ‘영덕복사꽃마을’

진우석 한국지방재정공제회 2023 지방재정 Vol.2023 No.1

An Insight Into the Recycling of Waste Flexible Polyurethane Foam Using Glycolysis

진우석,Pranabesh Sahu,김규리,정성록,정천영,이태규,이상호,오정석 한국고무학회 2023 엘라스토머 및 콤포지트 Vol.58 No.1

The worldwide use of polyurethane foam products generates large amounts of waste, which in turn has detrimental effects on the surroundings. Hence, finding an economical and environmentally friendly way to dispose of or recycle foam waste is an utmost priority for researchers to overcome this problem. In that sense, the glycolysis of waste flexible polyurethane foam (WFPF) from automotive seat cushions using different industrial-grade glycols and potassium hydroxide as a catalyst to produce recovered polyol was investigated. The effect of different molecular weight polyols, catalyst concentration, and material ratio (PU foam: Glycols) on the reaction conversion and viscosity of the recovered polyols was determined. The obtained recovered polyols are obtained as single or split-phase reaction products. Besides, the foaming characteristics and physical properties such as cell morphology, thermal stability, and compressive stress-strain nature of the regenerated flexible foams based on the recovered polyols were discussed. It was observed that the regenerated flexible foams displayed good seating comfort properties as a function of hardness, sag factor, and hysteresis loss compared to the reference virgin foam. With the growing demand for a sustainable and circular economy, a global valorization of glycolysis products from polyurethane scraps can be realized by transforming them into profitable substances.

An Analysis of Gifted Teachers' Interest in the Standards of National Gifted Education Program

진우석 사단법인 미래융합기술연구학회 2021 아시아태평양융합연구교류논문지 Vol.7 No.4

The purpose of this study is to analyze the differences in interest by background variables using CBAM models as a study on the analysis of gifted teachers' interest in national gifted program criteria. For this purpose, a survey was conducted on 200 teachers participating in gifted education in the K area and the results were utilized. The conclusions of this study are as follows. First, the overall interest in the national gifted program was high, and gifted teachers were positive about the overall impact and outcome of the national gifted program on students in gifted educational activities. Therefore, it will be necessary to utilize and support specific teacher training and gifted education so that the standards of the national gifted program can be applied to the educational site properly in the educational field. Second, national gifted curriculum programs customized for each student level should be developed and distributed based on understanding of the national gifted program standards. Training support and provision of materials should be prioritized, along with suggesting specific writing methods, so that teachers in charge of gifted education can write systematic programs rather than piecemeal education programs. Third, the effective and successful use and settlement of the national gifted education program standards will require continuous support for the dissemination of data and training of gifted education programs to gifted teachers through the development of regular gifted teaching.

Development and Effectiveness Analysis of Science and Gifted Education Program

진우석 사단법인 미래융합기술연구학회 2021 아시아태평양융합연구교류논문지 Vol.7 No.4

The purpose of this study is to develop science and gifted education programs in accordance with the national gifted education program standard development procedure established through the Gifted Education Promotion Act. The data in this study were conducted in accordance with the KEDI-type model in the third phase of the deep study, and the data of the science gifted program was developed for elementary school students according to the procedure model for developing the national gifted education program. In addition, the effectiveness of the program was analyzed by applying the standard of the national gifted program to the educational field. These studies have shown that the science and gifted programs developed can effectively influence students' development of creative problem-solving skills and science and core competency growth. In order for students to improve their thinking skills and core competencies in gifted education activities, they expect to increase the utilization and effectiveness of science and gifted education programs when systematic learning activities are prepared according to the data development procedures.

IT를 활용한 결격사유 정보관리 및 제도 개선에 관한 연구

진우석,차욱재,신용태 한국IT정책경영학회 2021 한국IT정책경영학회 논문지 Vol.13 No.5

Bankruptcy condemned persons, adult guardians, criminal backgrounds, etc. are stipulated in various laws so that they cannot become executives or workers in a specific field. In addition, information on individual reasons for disqualification related to citizens' ability to conduct or eligibility requirements is sent to the city/gu/eup/myeon office where the registration is based for management by the court or the prosecutor's office. Through the system, related tasks can be efficiently processed. owever, laws and ordinances related to information system operation such as electronic transmission/reception and integrated processing of information on reasons for disqualification have not yet been established. Is being processed. Therefore, it examines the system and detailed processing status of the production, distribution, and utilization of information on reasons for disqualification, and presents problems and improvement plans. In addition, this study also raises the need to innovate the system so that unnecessary work can be removed and efficiently processed by completely digitizing the conventional business processing method that used to manage information in written documents in accordance with the era of digital information processing.

시인은 왜 술을 마실까?

진우석,Jin, U-Seok 한국주류산업협회 2007 주류산업 Vol.27 No.4

Biomolecule Responsive Diffraction Grid Sensor Using Specific Binding Molecule Conjugated Hydrogel

진우석,신무광,강병훈,오승재,문병걸,함승주 한국고분자학회 2018 한국고분자학회 학술대회 연구논문 초록집 Vol.43 No.1

하이브리드 조직의 모순 대응 전략 변화: 소셜벤처 노을과 에누마 사례를 중심으로

진우석,성지은 한국벤처창업학회 2022 벤처창업연구 Vol.17 No.5

Nowadays companies are required to achieve social goals beyond maximizing shareholder profits. Accordingly, it is important to pursue both the economic and social goals of a company at the same time. Thus the importance of hybrid organizations is increasing theoretically and practically. In particular, since hybrid organizations essentially have the complexity of pursuing both economic and social purposes, the institutional demands of various stakeholders surrounding hybrid organizations are also conflicting. Several previous studies have considered how hybrid organizations respond to these conflicting institutional demands, but most studies are limited to studying at a specific point in time. As a result, there was a limit to analyzing the dynamics in response to conflicting institutional demands as the hybrid organization expanded its business. This study predicted that the hybrid organization would take selective coupling with conflicting institutional demands and that the process of responding to institutional demands would change according to the organization's growth. In this study, we had a case study about Noul and Enuma, social ventures that operate relatively advanced business models with outstanding results in innovation and technology. As a result, social ventures show a selective coupling for conflicting institutional demands, and the selective coupling process changes as their business model are advanced. Specifically, in the early stages of the business, it appears to respond to economic and social demands at the same time with a single business model. When the business is advanced, two or more business models are operated, some of which respond to economic needs and some of which respond to social needs. In the early stages of business, social ventures respond to economic and social demands with a single business model to gain legitimacy and survive in the institutional demands. But when they enter the business growth period, they try to separate business models which respond to economic and social values because they pursue sustainable growth and challenge large-scale missions. Overall, this study attempted to contribute to an in-depth understanding of hybrid organizations by identifying that the method of responding to conflicting institutional demands varies depending on the growth process of social ventures. 최근의 기업은 주주의 이윤 극대화를 넘어서 사회적 목표의 달성을 요구받으며, 이에 따라 기업의 경제적 목표와 사회적 목표를 동시에 추구하는 것이 중요하게 여겨지고 있다. 이러한 시대적 배경에서 하이브리드 조직에 대한 연구는 이론적·실무적으로 중요성이 증가하고 있다. 특히 하이브리드 조직은 본질적으로 경제적 목적과 사회적 목적을 동시에 추구하는 이중성을 가지고 있기에, 하이브리드 조직을 둘러싼 여러 이해관계자들의 제도적 요구 또한 모순적이다. 이처럼 모순된 제도적 요구에 하이브리드 조직이 대응하는 방식에 대해 여러 선행연구에서 고찰했으나, 대부분 연구가 특정 시점의 대응에 한정되어 있었다. 따라서 하이브리드 조직이 사업을 확장하고 진화하는 과정에 따라 모순된 제도적 요구에 대한 대응전략이 변화하는 모습을 파악하기에는 한계가 있었다. 본 연구는 하이브리드 조직이 모순된 제도적 요구에 대해 선택적 동조화를 취할 것으로 보았으며, 모순된 제도적 요구에 대한 대응이 조직의 성장과정에 따라 변화할 것으로 보았다. 모순된 제도적 요구에 대한 대응방식의 변화를 파악하기 위해 본 연구는 혁신성·기술성에서 좋은 성과를 내면서 고도화된 수준의 비즈니스모델을 운영하고 있는 소셜벤처인 노을과 에누마를 선정해 사례 연구를 수행하였다. 분석 결과 소셜벤처는 모순된 제도적 요구에 대해 선택적 동조화 방식을 취하며, 소셜벤처의 사업이 고도화됨에 따라 선택적 동조화 과정이 변화하는 모습을 보인다. 구체적으로 사업 초기에는 단일 비즈니스모델로 경제적 요구와 사회적 요구를 동시에 대응하는 모습을 보인다. 이후 사업이 고도화되면 두 개 이상의 비즈니스모델을 운영하여서 일부는 경제적 요구에 대응을 하고, 일부는 사회적 요구에 대응하게 된다. 이는 사업 초기 소셜벤처가 제도적 환경에 대해 정당성을 얻고 생존하기 위해 단일 비즈니스모델로 경제적 요구와 사회적 요구를 동시에 대응하되, 사업 성장기에 접어들면 지속가능한 성장을 추구하고 대규모 미션에 도전하기 위하여 경제적 가치를 추구하는 비즈니스모델과 사회적 가치를 추구하는 비즈니스모델을 분리하여 대응하는 것으로 해석된다. 이를 통해 본 연구는 하이브리드 조직이 성장함에 따라서 모순된 제도적 요구에 대응하는 방식이 달라지는 변화 양상을 밝혀내어 하이브리드 조직에 대한 심층적인 이해에 기여하고자 했다.

Fabrication of Self-healing EPDM/EPDM-g-MAH/Ionomer Thermoplastic Vulcanizates

진우석,오정석,Pranabesh Sahu,전준하,박성민,김남일,이재현 한국고분자학회 2022 한국고분자학회 학술대회 연구논문 초록집 Vol.47 No.2