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.

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

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.

신사업 발굴을 위한 전략적 디자인 모형 - CPS 기반 비즈니스 모델 개발을 중심으로 -

박승민(제1) ( Park Seung Min ),박승민(교신) ( Park Seung Min ) 디자인융복합학회 2017 디자인융복합연구 Vol.16 No.5

물리세계와 사이버세계의 무경계 연결을 기반으로 한 가상물리시스템의 응용과 확산은 다양한 비즈니스 분야에 혁신적 변화를 가져올 전망이다. 본 연구는 가상물리시스템과 비즈니스 모델에 대한 탐색적 연구를 통하여 신사업 구상을 위한 전략적 디자인 모형을 수립하고 그 접근 방법을 제안하는데 목적이 있다. 이를 위하여 먼저, 문헌연구를 기반으로 디자인-비즈니스 모델 요소의 계층화 및 가상물리시스템 전환을 위한 속성 연구를 통해 융합적 모형을 수립하고 이를 사례 연구를 통하여 적용 가능성을 검토함으로써 지능형 가상물리시스템 사업 구상을 위한 전략적 접근 모형을 제안하였다. 제안 모형은 단계적 디자인 접근을 위하여 도입, 배양, 구현의 3단계 구조를 가지며, 비즈니스 요소에 대한 가상물리시스템 속성 전환을 통한 신사업의 비즈니스 모델 개념설계의 틀을 제시한다. 이는 가상물리시스템 사업의 개념을 정의함에 있어서 전통적 제품시스템과 차별화된 비즈니스 관점을 모색하고 단계별 전략 요소들과 상호 연관된 새로운 융합 기회요인을 정의한다는 점에서 신사업 구상을 위한 선행적 가이드를 제공한다. The application and proliferation of cyber-physical system(CPS) based on the boundless connection between the physical and cyber world is expected to bring about innovative changes in various business fields. The purpose of this study is to develop a strategic design framework for new business incubation and to suggest its practical approach through exploratory studies on cyber physical system and business model. To do this, by combining design thinking and business model and by layering the attributes of CPS, this research first established an integrated approach based on literature studies, and suggested a strategic framework to examine the implemental applicability through a case study. The framework has a three-phase structure: Initiation, Incubation and Implementation for a stepwise design approach, and presents a practical model of business concept generation through CPS attribute conversion in conjunction with the business model elements. This suggests an advanced guideline for new CPS business incubation in that it provides differentiated viewpoints of product-system and new convergence opportunities integrated with the strategic business elements.

산취급사업장근로자에서 산의 원천별 치아부식증의 분포 및 연관 요인에 관한 조사연구

박승민 ( Seung-min Park ),신명섭 ( Myung-seop Shin ),공미선 ( Mi-sun Kong ),김현덕 ( Hyun-duck Kim ) 대한구강보건학회 2016 大韓口腔保健學會誌 Vol.40 No.4

Objectives: No evidence has been found on various types of dental erosion, except for occupational dental erosion. This study aimed to evaluate the distribution of four types of dental erosion (occupational, dietary, systemic, and gastric) and its associated factors among workers in factories that use acids. Methods: Of 89,034 workers from 4,625 factories that use acids, 716 workers from 38 factories were selected for this cross-sectional epidemiological study by using three-stage stratified cluster sampling. Evaluation for dental erosion was performed by a trained dentist by using Kim`s criteria, and a saliva sample was collected directly from each participant. Data on acid sources and associated factors were collected by using questionnaires. By using a complex sample analysis, the T test and Rao-Scott chisquare test were applied to analyze the distribution of four acid factors and to evaluate the associated factors. Results: The prevalence of overall dental erosion was 37.7% for occupational dental erosion, 23.1% for dietary dental erosion, 3.1% for systemic dental erosion, and 3.2% for gastric dental erosion. The prevalence of severe dental erosion was 10.5% for occupational dental erosion, 7.1% for dietary dental erosion, 1.8% for systemic dental erosion, and 1.7% for gastric dental erosion. The factors associated with dental erosion were age, sex, acid exposure, dental cervical abrasion, and dental attrition. Conclusions: Our data showed that the prevalence of dental erosion was high, moderate, and low in occupational, dietary, and gastric and systemic dental erosions, respectively, among workers exposed to acids. The related factors differed according to the types of dental erosion. Our data suggested that different types of promotion programs for dental erosion should be considered according to acid source.

비선형 차수에 따른 Boussinesq 모형의 천수변형 특성

박승민(Park, Seung-Min),윤종태(Yoon, Jong-Tae) 한국해안해양공학회 2008 한국해안해양공학회 논문집 Vol.20 No.1

비선형의 정도에 따른 Boussinesq 모형의 특성을 비교하기 위해 약비선형 모형인 MIKE21 BW 모듈과 완전비선형 모형인 FUNWAVE 모형을 이용하여 수치실험을 수행하였다. 진폭별 조파실험, 심해 파형경사별 천수실험 그리고 사주 지형상의 파랑 전파실험을 수행하였고, 이상의 실험을 통해 비선형성이 부각되는 천해역에서 비선형 모형의 중요성을 확인하였다. 특히 완전 비선형 모형이 약비선형 모형에 비해 비대칭 파형의 재현성이 우수하고, 천수현상에 따른 파고의 증가가 상대적으로 크게 나타나는 모형 간 특성을 확인하였다. Numerical experiments with weakly nonlinear MIKE21 BW module and fully nonlinear FUNWAVE model are performed to identify the nonlinear characteristics of Boussinesq models with varying nonlinearity. Generation of waves with varying amplitudes, nonlinear shoaling and wave propagation over submerged bar experiments showed the importance of nonlinear model in shallow water where nonlinearity becomes prominent. Fully nonlinear model showed the nonsymmetrical wave form more clearly and gave larger shoaling coefficients than those of weakly nonlinear model.

정수처리용 섬유상여과기 성능평가방법에 관한 연구

박승민(Seung-Min Park),이형돈(Hyung-Don Lee),방우혁(Woo-Hyuk Bang),박찬규(Chan-Gyu Park) 대한환경공학회 2022 대한환경공학회 학술발표논문집 Vol.2022 No.11