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Wave prediction in a port using a fully nonlinear Boussinesq wave model

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Acta Oceanologica Sinica 2019年第7期38卷 36-47页

作者： young-Kwang Choi Seung-Nam seo Jin-Yong Choi Fengyan Shi Kwang-Soon Park Civil and Architectural Engineering Department KEPCO Engineering and ConstructionGimcheon-si 39660Republic of Korea Task Force for Construction of RV ISABU Support Facility Korea Institute of Ocean Science and TechnologyBusan Metropolitan City 49111Republic of Korea Operational Oceanography Research Center Korea Institute of Ocean Science and TechnologyBusan Metropolitan City 49111Republic of Korea Center for Applied Coastal Research University of DelawareNewark DE 19716USA

A wave forecasting system using FUNWAVE-TVD which is based on the fully nonlinear Boussinesq equations by Chen(2006)was developed to provide an accurate wave prediction in the Port of Busan,South *** system is linked to the Korea Operational Oceanographic System(KOOS)developed by Park et al.(2015).The computational domain covers a region of 9.6 km×7.0 km with a grid size of 2 m in both directions,which is sufficient to resolve short waves and dominant sea *** total number of grid points exceeds 16 millions,making the model computational *** provide real-time forecasting,an interpolation method,which is based on pre-calculated results of FUNWAVE-TVD and SWAN forecasting results at the FUNWAVE-TVD offshore boundary,was used.A total of 45 cases were pre-calculated,which took 71 days on 924 computational cores of a Linux cluster *** wave generation and propagation from the deep water were computed using the SWAN in *** results provided a boundary condition for the FUNWAVE-TVD forecasting *** verify the model,wave observations were conducted at three locations inside the port in a time period of more than 7 months.A model/model comparison between FUNWAVE-TVD and SWAN was also carried *** is found that,FUNWAVE-TVD improves the forecasting results significantly compared to SWAN which underestimates wave heights in sheltered areas due to incorrect physical mechanism of wave diffraction,as well as large wave heights caused by wave reflections inside the port.

关键词： real-time wave forecasting FUNWAVE-TVD SWAN KOOS wave observations wave diffraction

Regression of gastric endoscopic submucosal dissection induced polypoid nodular scar after Helicobacter pylori eradication:A case report

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World Journal of Clinical Cases 2022年第34期10卷 12793-12798页

作者： Byung Chul Jin Ae Ri Ahn seong-Hun Kim Seung young seo Department of Internal Medicine Jeonbuk National University Medical SchoolResearch Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University HospitalJeonju 54907South Korea Department of Pathology Jeonbuk National University Medical SchoolResearch Institute of Clinical Medicine of Jeonbuk National UniversityBiomedical Research Institute of Jeonbuk National University Hospitaland Research Institute for Endocrine SciencesJeonju 56445South Korea

BACKGROUND Endoscopic submucosal dissection(ESD)is the treatment of choice for early gastric cancer and premalignant gastric *** some cases,ESD induced ulcer heals as a polypoid nodular scar(PNS).These scars may make the physicians raise several clinical implications such as post-ESD neoplastic *** SUMMARY We described a case of gastric ESD induced PNS which is regressed after Helicobacter pylori(***)eradication.A 58-year-old male patient was referred to the outpatient clinic for evaluation and treatment of gastric low-grade dysplasia(LGD).ESD was performed.A PNS was developed at the ESD *** endoscopic biopsy was done and there was no histological evidence of remnant tumor or recurrence but a hyperplastic mucosal *** PNS showed increase in size in follow-up endoscopy,and the biopsy specimen demonstrated *** *** eradication was done and the PNS was *** *** eradication is considerable for the regression of PNS if *** infesta tion is confirmed.

关键词： Polypoid nodular scar Helicobacter pylori Endoscopic submucosal dissection Case report

Stereotactic body radiotherapy for oligo-recurrence within the nodal area from colorectal cancer

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World Journal of Gastroenterology 2014年第8期20卷 2005-2013页

作者： young seok seo Mi-Sook Kim Hyung-Jun Yoo Won-Il Jang Department of Radiation Oncology Korea Cancer Center HospitalKorea Institute of Radiological and Medical SciencesSeoul 139-706South Korea

Recurrence of colorectal cancer(CRC)often presents as solitary metastases,oligometastases or *** resection became the preferred treatment for patients with CRC lung and hepatic ***,surgical treatment for oligo-recurrence within nodal area is not a widely accepted treatment due to due to their relative rarity and high postoperative *** body radiotherapy(SBRT)is one of the emerging radiation treatment techniques in which a high radiation dose can be delivered to the ***-dose SBRT can ablate the tumor with an efficacy similar to that achieved with surgery,especially for small ***,there have been very few studies on SBRT for oligo-recurrence within nodal area,although several studies have evaluated the role of SBRT in the treatment of liver and lung metastases from *** article reviews the current clinical status of and treatment methods for oligo-recurrence within nodal area from CRC,with particular emphasis on SBRT.

关键词： Colorectal cancer Oligo-recurrence Oligometastases Stereotactic radiotherapy Lymph node

Collapse behavior evaluation of hybrid thin-walled member by stacking condition

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Transactions of Nonferrous Metals Society of China 2011年第A01期21卷 135-140页

作者： Kil-Sung LEE Hyeon-Kyeong seo Yong-June YANG Woo-Chae HWANG Kwang-Hee IM In-young YANG R&D Center Dacc LTD. 948-13 Dunsan-ri Bongdong-eup Wanju-gun Jeonbuk 565-902 Korea Departments of Advanced Parts and Materials Engineering Graduate School Chosun University Department of Automotive Engineering Woosuk University Departments of Mechanical Design Engineering Chosun University

The recent trend of vehicle design aims at crash safety and environmentally-friendly aspect. For the crash safety aspect, the energy absorbing members should absorb collision energy sufficiently but for the environmentally-friendly aspect, the vehicle structure must be light weight in order to improve the fuel efficiency and reduce the tail gas emission. Therefore, the light weight of vehicle must be achieved in a securing safety status of crash. An aluminum or carbon fiber reinforced plastics (CFRP) is representative one of the light-weight materials. Based on the respective collapse behavior of aluminum and CFRP member, the collapse behavior of hybrid thin-walled member was evaluated. The hybrid members were manufactured by wrapping CFRP prepreg sheets outside the aluminum hollow members in the autoclave. Because the CFRP is an anisotropic material whose mechanical properties, such as strength and elasticity, change with its stacking condition, the effects of the stacking condition on the collapse behavior evaluation of the hybrid thin-walled member were tested. The collapse mode and energy absorption capability of the hybrid thin-walled member were analyzed with the change of the fiber orientation angle and interface number.

关键词： collapse behavior aluminum and CFRP hybrid thin-walled member stacking condition

The Arabidopsis Floral Repressor BFT DelaysFlowering by Competing with FT for FD Bindingunder High Salinity

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Molecular Plant 2014年第2期7卷 377-387页

作者： Ryu, Jae Yong Lee, Hyo-Jun seo, Pil joon Jung, Jae-Hoon Ahn, Ji Hoon Park, Chung-Mo Department of Chemistry Seoul National University Seoul 151-742 Korea Present address: Department of Chemistry Chonbuk National University Jeonju 561-756 Korea The Sainsbury Laboratory University of Cambridge Cambridge UK Creative Research Initiatives Division of Life Sciences Korea University Seoul 136-701 Korea PGBI Seoul National University Seoul 151-742 Korea

Soil salinity is one of the most serious agricultural problems that significantly reduce crop yields in the aridand semi-arid regions. It influences various phases of plant growth and developmental processes, such as seed germina-tion, leaf and stem growth, and reproductive propagation. Salt stress delays the onset of flowering in many plant spe-cies. We have previously reported that the Arabidopsis BROTHER OF FT AND TFL1 （BFT） acts as a floral repressor undersalt stress. However, the molecular mechanisms underlying the BFT function in the salt regulation of flowering inductionis unknown. In this work, we found that BFT delays flowering under high salinity by competing with FLOWERING LOCUST （FT） for binding to the FD transcription factor. The flowering time of FD-deficient fd-2 mutant was insensitive to highsalinity. BFT interacts with FD in the nucleus via the C-terminal domain of FD, which is also required for the interactionof FD with FT, and interferes with the FT-FD interaction. These observations indicate that BFT constitutes a distinct saltstress signaling pathway that modulates the function of the FT-FD module and possibly provides an adaptation strategythat fine-tunes photoperiodic flowering under high salinity.

关键词： Arabidopsis BFT FD flowering time FT salt stress

Effect of High-Performance Steel on the Tension Stiffening and Cracking Behavior of Reinforced Concrete (RC) Tension Ties

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Journal of Iron and Steel Research International 2011年第S1期18卷 812-816页

作者： Yun Hyun-do Lee young-oh Ryu Seung-hyun seo Soo-yeon Department of Architectural Engineering Chungnam National University Daejeon 305764 South Korea Department of Architectural Engineering Chungju National University Chungju South Korea

In construction industry, the application of high-performance reinforcement bar is required strongly. Unfortunately, not nearly enough research has been conducted on high-performance steel in comparison with high strength concrete. This paper describes the effect of high-performance steel as reinforcement steel bar on the tension response and cracking behavior of concrete and fiber-reinforced strain-hardening cement-based composite (SHCC) tension members. High-performance steel is characterized by higher strength in comparison to ASTM A615-06 Grade 60 steel. The tension stiffening effect on high-performance reinforcing bars embedded in cement-based composite prism is investigated experimentally. The variables in the study are types of cement-based composite (conventional concrete, synthetic fiber-reinforced cement composite), yielding strength of steel bars (400MPa and 600MPa), and types of loading (monotonic and repeated tension loading).

关键词： crack width tension stiffening fiber-reinforced strain-hardening cement-based composite tension

Cytochrome b5 Reductase 1 Triggers Serial Reactions that Lead to Iron Uptake in Plants

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Molecular Plant 2016年第4期9卷 501-513页

作者： young Jun Oh Hanul Kim Sung Hee seo Bae Geun Hwang Yoon seok Chang Junho Lee Dong Wook Lee Eun Ju Sohn Sang joon Lee youngsook Lee Inhwan Hwang Division of Integrative Biosciences and Biotechnology Department Life Sciences Division of Environmental Science and Engineering Division of Mechanical Engineering Pohang University of Science and Technology Pohang 790-784 Korea

Rhizosphere acidification is essential for iron （Fe） uptake into plant roots. Plasma membrane （PM） H＊-ATPases play key roles in rhizosphere acidification. However, it is not fully understood how PM H＋-ATPase activity is regulated to enhance root Fe uptake under Fe-deficient conditions. Here, we present evidence that cytochrome b5 reductase 1 （CBR1） increases the levels of unsaturated fatty acids, which stimulate PM H＋-ATPase activity and thus lead to rhizosphere acidification. CBRl-overexpressing （CBRI-OX） Arabidopsis thaliana plants had higher levels of unsaturated fatty acids （18：2 and 18：3）, higher PM H＊-ATPase activity, and lower rhizosphere pH than wild-type plants. By contrast, cbrl loss-of-function mutant plants showed lower levels of unsaturated fatty acids and lower PM H＊-ATPase activity but higher rhizosphere pH. Reduced PM H＊-ATPase activity in cbrl could be restored in vitro by addition of unsatu- rated fatty acids. Transcript levels of CBR1, fatty acids desaturase 2 （FAD2）, and fatty acids desaturase 3 （FAD3） were increased under Fe-deficient conditions. We propose that CBR1 has a crucial role in increasing the levels of unsaturated fatty acids, which activate the PM H＊-ATPase and thus reduce rhizosphere pH. This reaction cascade ultimately promotes root Fe uptake.

关键词： cytochrome b5 reductase 1 (CBR1) unsaturated fatty acids iron (Fe) uptake H^+-ATPase

Toxocara optic neuropathy: clinical features and ocular findings

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International Journal of Ophthalmology(English edition) 2018年第3期11卷 520-523页

作者： Kwang-Dong Choi Jae-Hwan Choi seo-young Choi Jae Ho Jung Department of Neurology Pusan National University Hospital Medical Research Institute Pusan National University Department of Neurology Pusan National University Yangsan Hospital Department of Ophthalmology Pusan National University Yangsan Hospital Research Institute for Convergence of Biomedical Science and Technology Pusan National University Yangsan Hospital

We evaluated thirteen eyes of twelve patients diagnosed clinically and serologically with Toxocara optic neuropathy. Eleven patients had unilateral involvement and one patient had bilateral optic neuropathy. Eight patients （66.7%） had a possible infection source to Toxocara. Six patients （50%） had painless acute optic neuropathy. Ten eyes had asymmetric, sectorial optic disc edema with peripapillary infiltration and three eyes had diffuse optic disc edema. Eosinophilia was noted in five patients （41.7%） and optic nerve enhancement was observed in eight of eleven eyes （72.7%） with available orbit magnetic resonance imaging （MRI）. Mean visual acuity significantly improved following treatment [mean logarithmic of the minimum angle of resolution （IogMAR） 0.94±0.56 at baseline and 0.47±0.59 at the final （P=0.02）]. Asymmetric optic disc edema with a peripapillary lesion and a history of raw meat ingestion were important clues for diagnosing Toxocara optic neuropathy. Additionally, Toxocara IgG enzymelinked immunosorbent assay （ELISA） test and evaluating eosinophil may be helpful for diagnosis.

关键词： optic neuropathy toxocariasis ocular toxocariasis Toxocara optic neuropathy

Revisiting the conversion reaction voltage and the reversibility of the CuF2 electrode in Li-ion batteries

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Nano Research 2017年第12期10卷 4232-4244页

作者： joon Kyo seo Hyung-Man Cho Katsunori Takahara Karena W. Chapman Olaf J. Borkiewicz Mahsa Sina Y. Shirley Meng Department of NanoEngineering University of California San Diego 9500 Gilman Drive La Jolla CA 92093 USA Materials Science and Engineering University of California San Diego 9500 Gilman Drive La Jolla CA 92093 USA X-ray Science Division Advanced Photon Source Argonne National Laboratory 9700 South Cass Avenue Argonne IL 60439 USA

Deviation between thermodynamic and experimental voltages is one of the key issues in Li-ion conversion-type electrode materials; the factor that affects this phenomenon has not been understood well in spite of its importance. In this work, we combine first principles calculations and electrochemical experiments with characterization tools to probe the conversion reaction voltage of transition metal difluorides MF2（M = Fe, Ni, and Cu）. We find that the conversion reaction voltage is heavily dependent on the size of the metal nanoparticles generated. The surface energy of metal nanoparticles appears to penalize the reaction energy, which results in a lower voltage compared to the thermodynamic voltage of a bulk-phase reaction. Furthermore, we develop a reversible CuF2 electrode coated with NiO. Electron energy loss spectroscopy （EELS） elemental maps demonstrate that the lithiation process mostly occurs in the area of high NiO content. This suggests that NiO can be considered a suitable artificial solid electrolyte interphase that prevents direct contact between Cu nanoparticles and the electrolyte. Thus, it alleviates Cu dissolution into the electrolyte and improves the reversibility of CuF2.

关键词： Li-ion battery conversion material reaction voltage nanoparticle reversibility coating