하천 조류제거를 위한 선박용 모듈형 탈수시스템 개발에 관한 연구

박승민 ( Seung-min Park ),박찬규 ( Chan-gyu Park ) 한국물환경학회 2020 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2020 No.-

Harmful algal blooms (HABs) can be controlled by mitigation using prevent methods of incoming eutrophication from pollution sources and restoring environmental condition using physical, chemical and biological control methods. Polymerized mesoporous zeolites (pMZ) was simply prepared by acid treatment and polymerization of ethylene diamine(ED), which evaluated as adsorbents for the removal of chlorophyll A and microcystin-LR from aqueous solutions. The effects of treatment times on the pore structure of the pMZ were studied as well as the effects of different acids which were also investigated during synthesis. The pMZ samples were characterized by nitrogen full isotherms, XRF analysis, image (SEM and TEM) analysis and FT-IR spectroscopy. The pMZ prepared using AFHS (ammonium hexafluorosilicate) had higher meso-pore volume, and surface area. So, polymerized mesoporous zeolite is based on AHFS treated zeolite for surface modification. The adsorption ability of pMZ for chlorophyll A and microcystin-LR which are index of algae bloom and evaluated the influence of modification materials. In addition, the adsorption isotherm were evaluated using Langmuir, Freundlich and Sips equations. The adsorption capacity resulted that the pMZ could removal the algae bloom indicators from aqueous solution at the modification of zeolite and different adsorption capacity were examined to explain the adsorption experiment. MZ is able to adsorb the chlorophyll A 29 mg/g. pMZ is able to remove 80% of microcystin-LR in 25 min.

하천 조류제거를 위한 선박용 모듈형 탈수시스템 개발에 관한 연구

박승민 ( Seung-min Park ),박찬규 ( Chan-gyu Park ) 한국물환경학회 2020 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2020 No.-

Harmful algal blooms (HABs) can be controlled by mitigation using prevent methods of incoming eutrophication from pollution sources and restoring environmental condition using physical, chemical and biological control methods. Polymerized mesoporous zeolites (pMZ) was simply prepared by acid treatment and polymerization of ethylene diamine(ED), which evaluated as adsorbents for the removal of chlorophyll A and microcystin-LR from aqueous solutions. The effects of treatment times on the pore structure of the pMZ were studied as well as the effects of different acids which were also investigated during synthesis. The pMZ samples were characterized by nitrogen full isotherms, XRF analysis, image (SEM and TEM) analysis and FT-IR spectroscopy. The pMZ prepared using AFHS (ammonium hexafluorosilicate) had higher meso-pore volume, and surface area. So, polymerized mesoporous zeolite is based on AHFS treated zeolite for surface modification. The adsorption ability of pMZ for chlorophyll A and microcystin-LR which are index of algae bloom and evaluated the influence of modification materials. In addition, the adsorption isotherm were evaluated using Langmuir, Freundlich and Sips equations. The adsorption capacity resulted that the pMZ could removal the algae bloom indicators from aqueous solution at the modification of zeolite and different adsorption capacity were examined to explain the adsorption experiment. MZ is able to adsorb the chlorophyll A 29 mg/g. pMZ is able to remove 80% of microcystin-LR in 25 min.

하천 조류제거를 위한 선박용 모듈형 탈수시스템 개발에 관한 연구

박승민 ( Seung-min Park ),박찬규 ( Chan-gyu Park ) 한국물환경학회 2020 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2020 No.-

Harmful algal blooms (HABs) can be controlled by mitigation using prevent methods of incoming eutrophication from pollution sources and restoring environmental condition using physical, chemical and biological control methods. Polymerized mesoporous zeolites (pMZ) was simply prepared by acid treatment and polymerization of ethylene diamine(ED), which evaluated as adsorbents for the removal of chlorophyll A and microcystin-LR from aqueous solutions. The effects of treatment times on the pore structure of the pMZ were studied as well as the effects of different acids which were also investigated during synthesis. The pMZ samples were characterized by nitrogen full isotherms, XRF analysis, image (SEM and TEM) analysis and FT-IR spectroscopy. The pMZ prepared using AFHS (ammonium hexafluorosilicate) had higher meso-pore volume, and surface area. So, polymerized mesoporous zeolite is based on AHFS treated zeolite for surface modification. The adsorption ability of pMZ for chlorophyll A and microcystin-LR which are index of algae bloom and evaluated the influence of modification materials. In addition, the adsorption isotherm were evaluated using Langmuir, Freundlich and Sips equations. The adsorption capacity resulted that the pMZ could removal the algae bloom indicators from aqueous solution at the modification of zeolite and different adsorption capacity were examined to explain the adsorption experiment. MZ is able to adsorb the chlorophyll A 29 mg/g. pMZ is able to remove 80% of microcystin-LR in 25 min.

파랑 스펙트럼 형상에 따른 처오름 특성

박승민,윤종태,정원무,Park, Seung Min,Yoon, Jong Tae,Jeong, Weon Mu 한국해안해양공학회 2014 한국해안해양공학회 논문집 Vol.26 No.6

최근 우리나라 동해안에는 너울성 고파의 반복적인 내습이 빈발하고 있다. 외해에서 발생하여 갑작스런 내습과 함께 인명과 시설에 피해를 끼치는 너울성 고파를 대상으로 그 처오름 특성을 확인하였다. 파랑 스펙트럼의 형상을 정량화하기 위해 스펙트럼 형상모수 $Q_p$, ${\varepsilon}$, ${\nu}$ 등을 도입하여 이들 모수들과 유의파고 및 첨두주기와의 상관관계를 파악하였고, MIKE21 BW 모듈을 사용하여 완경사 해안에 대한 처오름 수치실험을 수행하였다. 파고와의 상관관계가 가장 낮은 $Q_p$를 추가적인 형상 변수로 채택하여 파랑 스펙트럼의 형상 변화에 따른 처오름 높이의 변화와 특성을 확인하였다. Recently the large-height swell-like waves generated in the eastern coast of South Korea have been observed frequently. The characteristics of the runup and overtopping of the large-height swell-like waves formed in deep water and attack the coast, causing damages to both lives and facilities have been studied. The correlation between spectral shape parameters and significant wave height has been investigated by analyzing long term wave spectrum data. Numerical runup experiments using MIKE21 BW Module were performed with $Q_p$, additional shape parameter, and identified the variations and characteristics of runup heights with respect to the variations of spectral shape.

유럽의 건강투자 패러다임: 모델과 정책 콘텐츠 및 그것의 전환을 중심으로

박승민,Park, Seung-Min 한국콘텐츠학회 2022 한국콘텐츠학회논문지 Vol.22 No.10

The purpose of this research is to analyze the European paradigm of health investment and its implication. Conventional content analysis of WHO/EU(/EC)/European countries' policy data, and articles shows that the European paradigm of health investment is consist of the basic and extended models, twelve life-course-based health investment policies, and SROI evaluation method. The analyses and discussion points provide policy implications for making virtuous cycle of Korean sustainable healthcare system with economic development in the post Covid-19 era.

제강슬래그의 제체사석 대체재로의 수리특성 실험

박승민,이종인,Park, Seung-Min,Lee, Jong-In 한국수자원학회 2020 물과 미래(한국수자원학회지) Vol.53 No.7

영국 노인의 현금직접지급 정책 수혜 경험에 관한 사례 연구

박승민 ( Seung Min Park ) 한국가족복지학회 2011 한국가족복지학 Vol.16 No.2

본 논문의 목적은 영국 노인들이 장애인 운동과 시민권에 기반하여 형성된 노인 현금직접지급 정책 수혜의 실제 경험을 질적으로 분석하는 것이다. 연구 대상자는 영국 런던에 거주하면서 노인 현금직접지급 정책 수혜 대상자인 65세 이상 장애 노인 23명이고, 자료 수집은 반-구조화된 심층 인터뷰(Semi-structured Depth Interview)를 통해 이뤄졌다. 자료의 분석은 지오르기(Giorgi)의 현상학적 분석 방법에 따라 이뤄졌다. 분석 결과 긍정적 경험과 부정적 경험이라는 두 가지 구성 요소가 발견되었으며, 전자는 다섯 가지 하위 구성 요소로, 후자는 네 가지 하위 구성 요소로 재분류 되었다. 즉, 긍정적 경험은 노인이 서비스의 수혜 시간, 장소, 제공자와 내용을 결정할 수 있는 점과 가족 간 갈등 해소에 도움이 된다는 것이었다. 반면, 부정적 경험은 지급 받은 현금 관리의 어려움, 서비스 제공 부 자격자 관리 실패로 인한 피해, 서비스에 대한 구체적인 정보 접근의 어려움, 복잡하고 느린 행정 절차였다. 이와 같은 분석 결과를 바탕으로 한국의 노인복지 정책 발전의 잠정적 가능성에 대해 논의하였다. The purpose of this research is to qualitatively analyze the experiences of British older people who have exercised the direct payment option. Semi-structured depth interviews as well as Giorgi`s phenomenological analysis tool were applied to analyze the responses of 23 older people living in London. The analysis reveals five positive experiences as well as four negative experiences. The former includes possibility for older people to determine the time, place, provider and contents of the service with the effect of decreasing family conflict. The latter encompasses difficulties in managing cash, damages caused by unqualified service provider, limited information access for service, and complicated and slow administration. The findings derived from this research provide policy implications for improving Korean welfare policies for older people.

골반골 골절 환자의 혈역학적 불안정화에 미치는 영향요소

박승민 ( Seung Min Park ),이강현 ( Kang Hyun Lee ),최한주 ( Han Ju Choi ),박경혜 ( Kyung Hye Park ),김상철 ( Sang Chul Kim ),김현 ( Hyun Kim ),황성오 ( Sung Oh Hwang ) 대한외상학회 2008 大韓外傷學會誌 Vol.21 No.1

Purpose: Treatment and prognosis in patients with pelvic bone fracture depend on the characteristics of the fracture and the stability of the pelvic ring. The purpose of this study is to analyze the characteristics of and the relationships between fracture patterns, injury mechanisms, clinical courses, and prognoses according to the hemodynamic pattern. Methods: Between January 2004 and September 2006, 89 patients under diagnosis of pelvic bone fracture were retrospectively analyzed on the basis of medical records and radiologic examinations. Patients with confirmed hemorragic shock with a systolic pressure of less than 90 mmHg were defined as the shock group. Young`s classification was used to characterize fracture patterns. Factors relating to the clinical manifestation and to treatments such as transfusion and surgery were analytically compared. Results: The mean age of the patients was 48.8±18.7, among which 49 (55.1%) were male. The numbers of shock and non-shock patients were 35 (39.3%) and 54 (60.7%) respectively. Eighteen (51.4%) of the shock patient had injuries resulting from pedestrian accidents (p=0.008). According to Young`s classification, lateral impact fractures amounted to 20 and 33, front-rear impact fractures to 9 and 20, and multiple fractures to 6 and 1 among the shock and non-shock patients, respectively (p=0.027). Thirty-nine (39) cases in non-shock injuries were conservatively managed while 18 cases in shock injuries were surgically treated. In the shock group, the liver and the kidney were often damaged, as well. Among the shock patients, the average admission period was 7.5±8.7 days in intensive care and 55.1±47.9 days in total, which were longer than the corresponding numbers of days for the non-shock patients (p<0.05). No deaths occurred in the non-shock group while 5 deaths (14.2%) occurred in the shock group (p=0.007). Conclusion: The factors affecting hemodynamic instability in patients with pelvic bone fracture are injury mechanism, classification of fracture, and associated injuries.

하수처리시설용 재유화형 분말수지 혼입 단면복구재의 강도 개선 방안

박승민(Park, Seung-Min),김완기(Kim, Wan-Ki) 대한건축학회 2017 대한건축학회 학술발표대회 논문집 Vol.37 No.1

사회네트워크가 기업의 투자결정에 미치는 영향력 분석

박승민(Park, Seung-Min),안영규(Ahn, Young-Gyu) 한국산업경영학회 2013 경영연구 Vol.28 No.2

The purpose of this paper is to investigate whether and how regional, educational networks play a role in the way companies make investment decisions. Using the biographical information of key executives and directors of the KOSPI 100 firms over the period 2008~2011, we build a 575 symmetric binary sociomatrix based on the regional and educational backgrounds. We apply three common measures of centrality(e. g. degree, betweenness, closeness) from social network literature to appraise the position of a company in the social network. We find that social connections are significant factors of investment decisions after running the partial F-test. Furthermore, the more centrally located a company is in the network, the less idiosyncratic is its investment strategy relative to the other members of the network. On the contrary, The more connections two companies share with each other, the less similar both their level and change over time in investment decisions. In conclusion, This paper provides evidence that managers are influenced by their social networks when making corporate investment decisions. 본 연구는 기존의 기업투자결정요인으로 거론되는 성장기회, 시장이자율, 재무요인 이외에 사회경제학적 관점에서 투자의사결정권자인 경영진의 사회네트워크도 기업의 투자결정에 어떤 영향을 미치는지 살펴보고자 하였다. 구체적으로, 사회네트워크분석을 통해 경영진을 둘러싼 사회네트워크를 파악하고 이를 기업의 투자결정과 연계시켜 살펴봄으로써, 기업의 투자결정요인과 투자결정과정 분석 시 사회네트워크변수가 어떤 영향을 미치는지 종합적으로 검토해보고자 하였다. 이를 위해, 본 연구에서는 사회네트워크분석을 이용하여 경영진의 사회네트워크변수를 설정한 후, 부분 F-검정(partial F-test)을 통해 사회네트워크변수가 기업의 투자결정요인으로 작용할 수 있는지의 여부를 판단하고, 중심성모형(centrality model)을 통해 사회네트워크 내 개별기업의 포지션별 영향력을 점검해보는 동시에 대응모형(pair model)을 통해서는 인접기업의 영향력에 따른 기업의 투자결정 차이와 변화에 대해서도 살펴보았다. 분석결과, 기업의 투자결정을 설명함에 있어 사회네트워크변수의 유용성에 대해서는 일정부분 실증되었으며, 사회네트워크의 중심에 위치할수록 개별 기업 특유의 투자결정을 내릴 가능성은 낮아지는 반면, 인접기업과 사회적으로 밀접한 관계를 가질수록 상이한 투자결정을 내릴 가능성은 높아지는 것으로 나타났다.