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참나무낙엽을 활용한 바이오매스 흡착제 제조에 관한 연구
권은진,길태형,우제민,유영국,박영성 한국폐기물자원순환학회 2017 한국폐기물자원순환학회지 Vol.34 No.4
Biomass adsorbents were prepared from fallen oak leaves. In the activation process for fallen oak leaves, various operating parameters such as the activation temperature (600-900°C), steam injection rate (5-15 cc/hr), and steam injection time (1- 3 hr) were adopted. For analyses of the manufactured adsorbent, various methods such as scanning electron microscope (SEM), measurements of the BET surface area and chemical composition analyses were adopted. Regarding major adsorption characteristics, the adsorption equilibrium capacity was measured using batch type experimental apparatus for various biomass adsorbents. The experimental result showed that the H2S adsorption equilibrium capacity of the adsorbent made from fallen oak leaves decreased as the activation temperature and steam injection rate increased for a given range.
권은진,이경주,조안젤라,박선화,박미혜,김영주,국내 조산 레지스트리 그룹 한국모자보건학회 2018 한국모자보건학회지 Vol.22 No.2
Purpose: To identify the potential risk factors for preterm birth (PTB) in women with advanced maternal age in the Korean population. Methods: We selected the data of 531 pregnant women and singletons in the Korean Preterm Collaborate Network Study. Among the data, we analyzed variables related to demographic characteristics, lifestyle factors, and delivery information. Maternal age was divided into two groups: younger (<35 years) and advanced (≥35 years). Multiple logistic regression analysis was performed to identify the potential risk factors for PTB in advanced maternal age. Results: In advanced maternal age, education level, occupation, passive smoking, iron intake, and parity showed significant differences between term birth and PTB. In particular, women who were exposed to passive smoking (odds ratio [OR]=2.83, confidence interval [CI]=1.14~7.04) and had folic acid intake during pregnancy (OR=2.67, CI=1.11~6.43) were at a significantly increased risk of PTB, after adjusting for all variables. Conclusion: This study indicates that smoking and lifestyle factors are the potential risk factors for PTB in advanced maternal age.
A Case of Gemcitabine and Cisplatin Associated Posterior Reversible Encephalopathy Syndrome
권은진,김광기,김세원,서형석,김도연 대한암학회 2009 Cancer Research and Treatment Vol.41 No.1
A 58-year-old female receiving gemcitabine and cisplatin chemotherapy for stage IV gallbladder cancer developed the clinicoradiologic syndrome, posterior reversible encephalopathy syndrome (PRES). Just before the 4th gemcitabine chemotherapy cycle, she was admitted to the hospital with complaints of headache, dizziness, and generalized tonicclonic seizures. A MRI was performed on the day when the seizure developed, and the findings showed patchy cortical and subcortical T2 hyperintensity without enhancement that involved both occipital and parietal lobes. Phenytoin loading and maintenance was started for prevention of recurrent seizures, which was successful. The follow-up brain MRI obtained 10 days after the seizure attack showed completely resolved radiologic findings. After the MRI findings revealed complete resolution, phenytoin maintenance was stopped. Even with discontinuation of phenytoin, she had no seizures or other clinical manifestations.