한·미 철강 제로잉 분쟁과 시사점

박혜리,사딕호드자에브 세르죠드 대외경제정책연구원 2011 지역경제포커스 Vol.2011 No.4

▣ 지난 2월 24일 WTO 분쟁해결기구는 한·미 철강 분쟁의 패널 최종 보고서를 채택하였으며, 이 보고서는 우리나라 철강제품에 대한 미국의‘제로잉(zeroing)’사용이 WTO 반덤핑 협정에 위배된다는 WTO 판결 내용에 관한 것임. - 우리나라는 2009년 11월 미국의 제로잉 조치에 대해 WTO에 제소한 바 있으며 2009년 12월과 2010년 2월 두 차례의 양자협의에 실패하여 2010년 5월 분쟁 패널이 설치되었음. ▣ 한·미 철강 제로잉 분쟁은 미국의 제로잉 관행에 대한 우리나라의 첫 WTO 제소라는 점과 제로잉 관련 승소 사례를 구축하였다는 데 의의가 있음. - 그러나 이번 WTO 제소는 절차상의 의미가 크기 때문에 분쟁 승소에 대한 과대평가는 지양해야 하며, 향후 제로잉 논의에 대응할 수 있는 후속 전략 마련에 힘을 써야 함. ▣ 최근 제로잉 사용을 제한하는 방향으로 논의가 진행되고 있고 미국도 제로잉 관련 규정을 손질하는 방안에 대해 고심하는 등 변화된 움직임을 보이고 있는바, 우리나라도 다각적인 대응방안을 마련해야 하는 시점임. - 제로잉으로 인한 우리 기업의 피해를 최소화하기 위해서 단기적으로는 WTO 제소를 통한 승소, 양자협의 등 양자간 대응 방식이 효과적일 것으로 예상됨. - 그러나 보다 근본적으로는 DDA 반덤핑 협상에 적극 동참하여 분쟁의 소지가 있는 제로잉 관련 규정의 명료화를 위해 노력해야 함. - 또한 대내적으로 반덤핑(제로잉) 논의에 대한 대기업과 중소기업의 관심 증대, 업계와 전문가의 협력체계 구축, 정부의 인력 및 재정 지원이 이루어져야 할 것임.

A comparison of preplan MRI and preplan CT-based prostate volume with intraoperative ultrasound-based prostate volume in real-time permanent brachytherapy

박혜리,김자영,이보미,장세경,고승영,김성준,박동수,신현수 대한방사선종양학회 2011 Radiation Oncology Journal Vol.29 No.3

Purpose: The present study compared the difference between intraoperative transrectal ultrasound (iTRUS)-based prostate volume and preplan computed tomography (CT), preplan magnetic resonance imaging (MRI)-based prostate volume to estimate the number of seeds needed for appropriate dose coverage in permanent brachytherapy for prostate cancer. Materials and Methods: Between March 2007 and March 2011, among 112 patients who underwent permanent brachytherapy with 125I, 60 image scans of 56 patients who underwent preplan CT (pCT) or preplan MRI (pMRI) within 2 months before brachytherapy were retrospectively reviewed. Twenty-four cases among 30 cases with pCT and 26 cases among 30 cases with pMRI received neoadjuvant hormone therapy (NHT). In 34 cases, NHT started after acquisition of preplan image. The median duration of NHT after preplan image acquisition was 17 and 21 days for cases with pCT and pMRI, respectively. The prostate volume calculated by different modalities was compared. And retrospective planning with iTRUS image was performed to estimate the number of 125I seed required to obtain recommended dose distribution according to prostate volume. Results: The mean difference in prostate volume was 9.05 mL between the pCT and iTRUS and 6.84 mL between the pMRI and iTRUS. The prostate volume was roughly overestimated by 1.36 times with pCT and by 1.33 times with pMRI. For 34 cases which received NHT after image acquisition, the prostate volume was roughly overestimated by 1.45 times with pCT and by 1.37 times with pMRI. A statistically signifi cant difference was found between preplan image-based volume and iTRUS-based volume (p <0.001). The median number of wasted seeds is approximately 13, when the pCT or pMRI volume was accepted without modifi cation to assess the required number of seeds for brachytherapy. Conclusion: pCT-based volume and pMRI-based volume tended to overestimate prostate volume in comparison to iTRUS-based volume. To reduce wasted seeds and cost of the brachytherapy, we should take the volume discrepancy into account when we estimate the number of 125I seeds for permanent brachytherapy.

Risk Factors for Distant Metastasis as a Primary Site of Treatment Failure in Early-Stage Breast Cancer

박혜리,신현수,이보미,김자영 전남대학교 의과학연구소 2014 전남의대학술지 Vol.50 No.3

The aim of this study was to evaluate the risk factors for distant metastasis (DM) asa primary site of failure in early-stage breast cancer. Data from 294 patients diagnosedwith pathologic stage I or II breast cancer between January 2000 and December 2005were reviewed retrospectively. Median follow-up duration was 81.0 months (range,18-135 months). The total number of patients with DM without evidence of locoregionalrecurrence was 20 and the median time between surgery and DM was 29 months (range,9-79 months). Median survival time was 38 months (range, 22-77 months) afteroperation. HER-2 positivity (p=0.015), T stage of tumor (p=0.012), and number of involvedlymph nodes (p=0.008) were significant predictors of DM in the univariableanalysis. Number of involved lymph nodes [p=0.005, hazards ratio (HR): 1.741; 95%confidence interval (CI): 1.178-2.574] and HER-2 positivity (p=0.018, HR: 2.888; 95%CI: 1.201-6.941) had a statistically significant effect on DM-free survival in the multivariableanalysis. A cautious evaluation may be helpful when patients with risk factorsfor DM have symptoms implying the possibility of DM. To reduce DM, applying intensivetherapy is needed after curative surgery for patients with high risk for DM.

자동차조명 평가 프로토콜 소개

박혜리 한국조명·전기설비학회 2017 조명.전기설비 Vol.31 No.3

Response of Microbial Time Temperature Indicator to Quality Indices of Chicken Breast Meat during Storage

박혜리,김연아,정승원,김현철,이승주 한국식품과학회 2013 Food Science and Biotechnology Vol.22 No.4

A prototype of lactic acid bacteria-based time temperature indicator (TTI) was applied to vacuum packed chicken breast meat. Responses of the microbial TTI produced in our laboratory were measured in titratable acidity (TA) during storage. The TTI responses were correlated with the meat qualities over the storage periods at different temperatures. The relationships between the coliform bacteria (CB) counts of meat and the TA of TTI were almost the same for all storage temperatures, because CB counts and TTI had the most similar Arrhenius temperature dependence. The other meat quality indices also showed the similar tendency in the relationships but disagreement between the temperatures increased in the order of lactic acid bacteria counts, volatile basic nitrogen,aerobic mesophilic bacteria counts, and thiobarbituric acid reactive substance. In conclusion, the microbial TTI prototype was found to be a beneficial tool in predicting the quality changes of chicken breast meat during storage.

미다졸람에 의한 일과성 용혈 1예

박혜리,곽동석,박홍균,김경준,박성호 대한신경과학회 2011 대한신경과학회지 Vol.29 No.4

The impact of COVID-19 on the screening of colorectal, gastric, breast and cervical cancer in Korea

박혜리,Seo Seung Hee,Park Jong Heon,Yoo Shin Hye,Keam Bhumsuk,Shin Aesun 한국역학회 2022 Epidemiology and Health Vol.44 No.-

OBJECTIVES: The coronavirus disease 2019 (COVID-19) pandemic has affected the utilization of healthcare services, including participation in cancer screening programs. We compared cancer screening participation rates for colorectal, gastric, breast, and cervical cancers among participants in the National Cancer Screening Program (NCSP) in 2019 and 2020 to address the potential distraction effect of COVID-19 on cancer screening. METHODS: Data from the NCSP for 4 cancer types (stomach, colorectal, breast, and cervical) in 2019 and 2020 were used to calculate cancer screening participation rates by calendar month, gender, age group, and geographical region. Monthly participation rates were analyzed per 1,000 eligible individuals. RESULTS: The screening participation rate decreased in 2020 compared to 2019 for all 4 cancers: colorectal (40.5 vs. 35.3%), gastric (61.9 vs. 54.6%), breast (63.8 vs. 55.8%), and cervical (57.8 vs. 52.2%) cancers. Following 2 major COVID-19 waves in March and December 2020, the participation rates in the 4 types of cancer screening dropped compared with those in 2019. The highest decline was observed in the elderly population aged 80 years and older (percentage change: -21% for colorectal cancer; -20% for gastric cancer; -26% for breast cancer; -20% for cervical cancer). CONCLUSIONS: After the 2 major COVID-19 waves, the screening participation rate for 4 types of cancer declined compared with 2019. Further studies are needed to identify the indirect effects of the COVID-19 pandemic on cancer patients, such as delayed diagnoses of cancer or excess cancer deaths.

CCS와 연계한 석유회수증진 기술 동향 및 현장사례 분석

박혜리,장호창 한국가스학회 2023 한국가스학회지 Vol.27 No.3

Carbon capture, and storage (CCS) is important for the reduction of greenhouse gases and achieving carbon neutrality. CCS focuses on storing captured CO2 permanently in underground reservoirs. CO2-enhanced oil recovery (CO2-EOR) is one form of CCS, where CO2 is injected into the underground to enhance oil recovery. CO2-EOR not only aids in the extraction of residual oil but also contributes to carbon neutrality by storing CO2 underground continuously. CO2-EOR can be classified into miscible and immiscible methods, with the CO2-water alternating gas (CO2-WAG) technique being a representative approach within the miscible method. In CO2-WAG, water and CO2 are alternately injected into the reservoir, enabling oil production and CO2 storage. The WAG method allows for controlling the breakthrough of injection fluids, providing advantages in oil recovery. It also induces hysteresis in relative permeability during the injection and production process, expanding the amount of trapped CO2. In this study, the effects of enhancing oil recovery and storing CO2 underground during CO2-EOR were presented. Additionally, cases of CO2-EOR application in relation to CCS were introduced.

마찰해석모델에 따른 PVDF/MgO 마찰재 적용 면진 장치가 설치된 교량의 성능 비교 분석

박혜리,김성조,한동석 한국전산구조공학회 2023 한국전산구조공학회논문집 Vol.36 No.2

본 연구에서는 마찰모델에 따라 다른 마찰진자시스템(FPS)이 적용된 교량의 성능을 비교・분석하기 위해 구조해석을 수행하였다.마찰해석모델 별 성능을 분석하기 위해 PVDF/MgO 마찰재의 마찰계수를 활용하여 쿨롱 마찰모델과 속도 의존 마찰모델을 구축했다.쿨롱 마찰모델은 마찰속도와 관계없이 단일 마찰계수를 사용하며, 속도 의존 마찰모델은 마찰속도에 따른 마찰계수의 변화를 반영하는 마찰모델이다. 지진해석으로 비선형 시간 이력 해석과 지진 취약도 해석을 수행하여 구조물의 응답을 확인하였다. 마찰모델에 따른 바닥판과 교각의 지진 응답을 활용해 면진된 교량의 성능을 분석하였으며, 면진된 교량의 성능을 효과적으로 평가할 수 있는 마찰모델을 분석했다.

한외여과에 의한 계란 난백으로부터 라이소자임의 분리 (1) - 난백용액의 전량여과 -

박혜리,염경호 한국막학회 2016 멤브레인 Vol.26 No.4

전량여과(dead-end filtration)를 사용하여 계란 난백용액으로부터 라이소자임 효소의 분리정제에 대한 연구를 수 행하였다. 전량여과 시 사용된 한외여과 막의 분획분자량과 난백용액의 pH 변화에 따른 라이소자임의 난백에 존재하는 다른 종류의 단백질인 오발부민과 콘알부민에 대한 막을 통한 투과선택도(permselectivity)를 측정하여 투과선택도가 가장 큰 값을 나타내는 전량여과의 최적 운전조건을 결정하였다. 이 결과 난백용액으로 라이소자임을 효과적으로 투과 분리시키기 위한 최 적 운전조건은 한외여과 막의 분획분자량 30 kDa, 난백용액의 pH 11이었다. 최적 운전조건에서 난백 내 총 단백질에 대한 라이소자임의 투과선택도가 약 83의 가장 큰 값을 나타내었다. The separation and purification of lysozyme enzyme from chicken egg white (CEW) solution was studied using the dead-end filtration. The optimum operation conditions of the dead-end filtration reveal that the maximum value of permselectivity of lysozyme to the other proteins of ovalbumin and conalbumin in the CEW solution was tested with change of molecular weight cut-off (MWCO) of ultrafitration membrane and pH of the CEW solution. The optimum operation conditions for the efficient permeable separation of lysozyme from the CEW solution are that the membrane MWCO is 30 kD and the pH of CEW solution is 11. At this optimum operation conditions, the maximum value of permselectivity of lysozyme to total proteins in CEW solution is about 83.