마산만 수질 관리 시나리오 모의와 효율적 부하 저감 방안 제시

박성식,김영윤,이원제,이성진,김경회 한국해양환경·에너지학회 2025 한국해양환경·에너지학회지 Vol.28 No.4

Masan Bay is a semi-enclosed coastal embayment where external riverine loads and internal sediment loads interact, leading to recurring water quality problems each summer. In this study, (1) a hydrodynam-ic model was applied to reproduce the ocean circulation and temperature of Masan Bay, (2) a phospho-rus circulation box model was used to simulate the spatiotemporal variation of phosphorus, and (3) a machine learning model was employed to predict and reproduce COD concentrations. The model was developed and validated for 2022, the driest year (1,050 mm of rainfall), and 2023, the wettest year (2,161 mm) during the past seven years (2018–2024). Comparison with observations demonstrated that the model successfully captured the seasonal variability of total phosphorus (TP) and COD. Scenario simulations showed that TP largely satisfied the target concentration (0.031 mg/L), whereas COD failed to meet the target (2.10 mg/L) under realistic conditions. In particular, exceedance of COD was pronounced during August–September due to high rainfall and internal processes, indicating the necessity of differen-tiated seasonal targets. Furthermore, reducing wastewater treatment plant loads alone had limited effects on improving water quality in the inner bay, while sediment load reduction within the inner bay was most effective in lowering TP and COD. This study highlights the importance of simultaneously managing both external and internal loads and supports the feasibility of season-specific targets, providing a scientific basis for designing more effective water quality management strategies in Masan Bay.

만화산업의 체질개선과 발전전략

박성식 한국만화애니메이션학회 2004 한국만화애니메이션학회 학술대회자료집 Vol.2004 No.10

섬유의 보강 형태에 따른 섬유-시멘트 혼합토의 일축압축강도특성

박성식,김영수,이종천 한국지반공학회 2007 한국지반공학회논문집 Vol.23 No.8

The behavior of fiber-reinforced cemented sands (FRCS) was studied to improve a brittle failure mode observed in cemented sands. Nak-dong River sand was mixed with ordinary Portland cement and a Polyvinyl alcohol (PVA) fiber. A PVA fiber is widely used in concrete and cement reinforcement. It has a good adhesive property to cement and a specific gravity of 1.3. A PVA fiber has a diameter of 0.1 mm that is thicker than general PVA fiber for reinforced cement. Clean Nak-dong River sand, cement and fiber at optimum water content were compacted in 5 layers giving 55 blows per layer. They were cured for 7 days. Cemented sands with a cement/sand ratio of 4% were fiber-reinforced at different locations and tested for unconfined compression tests. The effect of fiber reinforcement form and distribution on strength was investigated. A specimen with evenly distributed fiber showed two times more strength than not-evenly reinforced specimen. The strength of fiber-reinforced cemented sands increases as fiber reinforcement ratio increases. A fully reinforced specimen was 1.5 times stronger than a specimen reinforced at only middle part. FRCS behavior was controlled not only by a dosage of fiber but also by fiber distribution methods or fiber types.

[정책제안] 4차 산업혁명을 대비한 문화콘텐츠산업 클러스터 정책의 전환

박성식 한국자치학회 2018 월간 공공정책 Vol.147 No.-

지리산 일대의 고등균류 (2)

박성식,조덕현 ( Seong Sick Park,Duck Hyun Cho ) 한국균학회 1988 韓國菌學會誌 Vol.16 No.3

지리산 일대의 고등균류 (3)

박성식,조덕현 ( Seong Sick Park,Duck Hyun Cho ) 한국균학회 1989 韓國菌學會誌 Vol.17 No.3

사상체질에 따른 대변의 특징에 대한 임상적 검토

박성식,최재영,Park, Seong-Sik,Choi, Jae-Young 사상체질의학회 2002 사상체질의학회지 Vol.14 No.2

Objectives: This paper was for studying the features of stool according to Sasang constitution and to be helpful to make a diagnosis Sasang constitution. Using the result of this study, it will be helpful to diagnose a Sasang constitution. Methods: There were 504 patients(214 men and 290 women) who answered questionnaire and were diagnosed by the Sasang constitution specialist at constitutional clinic of Dongguk Bundang Oriental Hospital. Using the response of questionnaire and several statistical techniques, we tried to find the characteristics of each constitution depending on its stool behaviors. Results: As a result of the analysis of questionnaire, the stool of Taeumin and Soyangin got, on the average, more scattered than the stool of Soeumin(p<0.05). In a view of defecation time, feeling after defecation and thickness of stool, there was no difference between Sasang constitution.

소양인(少陽人) 약방(藥方)의 형성과정에 관한 연구(硏究)

박성식,배효상,Park, Seong-Sik,Bae, Hyo-Sang 사상체질의학회 2002 사상체질의학회지 Vol.14 No.3

1. Purpose This study is intended to catch the expasion of theory of Sasang Constitutional Medicine through comparision DongyiSooseBowon Chopanbon with DongyiSooseBowon Chobonguen and DongyiSooseBowon Gabobon. 2. Method I compared the Soyangin's prescription and medications of DongyiSooseBowon Chopanbon with those of DongyiSooseBowon Chobonguen and Dongyisoosebowon Gabobon. 3. Result and conclusion 1) Soyangin's Medications of the same kind in Chobonguen's prescriptions and Gabobon's and Chopann's are thirty-two; like Bangpoong(防風), Hyeunggye(荊芥), Sangjihwang(生地黃), sukgo(石膏), etc. And these medications are the principle in Soyangin's disease. 2) Soyangin's Prescriptions of the same name in Chobonguen's prescriptions and Gabobon's and Chopanbon's are Yangdokbackhotang(陽毒白虎湯). Chopanbon's Yangdokbackhotang(陽毒白虎湯) is more rational and effective prescription. 3) Soyangin's Prescriptions of the same name in Chobonguen's prescriptions and Gabobon's are eleven; Bangpoongtongseungsan(防風通聖散), chengumdojuksan(千金導赤散), etc. These prescriptions are similar in the structure. 4) Soyangin's Prescriptions of the same name in Gabobon's prescriptions and Chopanbon's are five; Hyungbangpaedoksan(荊防敗毒散), Yangdokbackhotang(陽毒白虎湯). etc. These Prescriptions make a change in the structure from Gabobon's to Chopanbon's. As this we know that Dongmu(東武) selected Sasang Constitutional prescription and medication in detail as he has the more experience of treatment.

두개강내 고혈압의 내과적 조절

박성식 대한마취통증의학회 2009 Anesthesia and pain medicine Vol.4 No.3

Normal intracranial pressure (ICP) is below 10−15 mmHg. It may increase as a result of traumatic brain injury, stroke, neoplasm or other pathologies. When ICP is pathologically elevated it needs to be lowered. Effective management of intracranial hypertension involves meticulous avoidance of factors that precipitate or aggravate intracranial hypertension. It is important to rule out space occupying lesion that should be surgically removed. Medical managements of intracranial hypertension include maintenance of proper oxygenation and cerebral perfusion pressure and osmotheraphy with either mannitol or hypertonic saline. For intracranial hypertension refractory to initial medical treatment, profound hyperventilation, barbiturate coma or hypothermia should be considered. Steroids are not indicated and maybe harmful in the treatment of intracranial hypertension caused by traumatic brain injury.

UBCSAND모델을 이용한 사면의 동적거동해석

박성식,김영수,김희중 한국지반공학회 2006 한국지반공학회논문집 Vol.22 No.4

A numerical procedure is presented for evaluating seismic liquefaction on sloping ground sites. The procedure uses a fully coupled dynamic effective stress analysis with a plastic constitutive model called UBCSAND. The model was first calibrated against laboratory element behavior. This involved cyclic simple shear tests performed on loose sand with and without initial static shear stress. The numerical procedure is then verified by predicting a centrifuge test with a slope performed on loose Fraser River sand. The predicted excess pore pressures, accelerations and displacements are compared with the measurements. The results are shown to be in good agreement. The shear stress reversal patterns depend on static and cyclic shear stress levels and are shown to play a key role in evaluating liquefaction response in sloping ground sites. The sand near the slope has low effective confining stress and dilates more. When no stress reversals occur, the sand behaves in a stiffer manner that curtails the accumulated downslope displacements. The numerical procedure using UBCSAND can serve as a guide for design of new soil structures or retrofit of existing ones.