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Modeling and implementation of tandem polymer solar cells using wide-bandgap front cells

Carbon Energy 2020年第1期2卷 131-142页

作者： Seo-Jin Ko Hyosung Choi Quoc Viet Hoang Chang Eun Song Pierre-Olivier Morin Jungwoo heo Mario Leclerc Sung Cheol yoon Han Young Woo Won Suk Shin Bright Walker Jin Young Kim Division of Advanced Materials Korea Research Institute of Chemical Technology(KRICT)DaejeonSouth Korea Department of Chemistry and Research Institute for Natural Sciences Hanyang UniversitySeoulSouth Korea Vietnam Certification Centre Directorate for StandardsMetrology and Quality(STAMEQ)HanoiVietnam Department of Chemistry Laval UniversityQuebec CityCanada Department of Energy Engineering Ulsan National Institute of Science and Technology(UNIST)UlsanSouth Korea Department of Chemistry Korea UniversitySeoulSouth Korea Department of Chemistry Kyung Hee UniversitySeoulSouth Korea

Tandem device architectures offer a route to greatly increase the maximum possible power conversion efficiencies(PCEs)of polymer solar cells,however,the complexity of tandem cell device fabrication(such as selecting bandgaps of the front and back cells,current matching,thickness,and recombination layer optimization)often result in lower PCEs than are observed in single-junction *** this study,we analyze the influence of front cell and back cell bandgaps and use transfer matrix modeling to rationally design and optimize effective tandem solar cell structures before actual device *** approach allows us to estimate tandem device parameters based on known absorption coefficients and open-circuit voltages of different active layer materials and design devices without wasting valuable time and *** this approach,we have investigated a series of wide bandgap,high voltage photovoltaic polymers as front cells in tandem devices with PTB7-Th as a back *** this way,we have been able to demonstrate tandem devices with PCE of up to 12.8%with minimal consumption of valuable photoactive materials in tandem device *** value represents one of the highest PCE values to date for fullerene-based tandem solar cells.

关键词： polymer solar cells solar cells tandem solar cells

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Programmed death ligand-1 expression and its prognostic role in esophageal squamous cell carcinoma

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World Journal of Gastroenterology 2016年第37期22卷 8389-8397页

作者： Ryul Kim Bhumsuk Keam Dohee Kwon Chan-Young Ock Miso Kim Tae Min Kim Hak Jae Kim yoon Kyung Jeon In Kyu Park Chang Hyun Kang Dong-Wan Kim Young Tae Kim Dae Seog heo Department of Internal Medicine Seoul National University HospitalSeoul 03080South Korea Cancer Research Institute Seoul National University College of MedicineSeoul 03080South Korea Department of Pathology Seoul National University HospitalSeoul 03080South Korea Department of Radiation Oncology Seoul National University HospitalSeoul 03080South Korea Department of Thoracic and Cardiovascular Surgery Seoul National University HospitalSeoul 03080South Korea

AIM To investigate the expression and prognostic role of programmed death ligand-1(PD-L1) in locally advanced esophageal squamous cell carcinoma(ESCC).METHODS A total of 200 patients with ESCC who underwent radical esophagectomy with standard lymphadenectomy as the initial definitive treatment in Seoul National University Hospital from December 2000 to April 2013 were eligible for this analysis. Tissue microarrays were constructed by collecting tissue cores from surgical specimens, and immunostained with antibodies directed against PD-L1, p16, and c-Met. Medical records were reviewed retrospectively to assess clinical outcomes. Patients were divided into two groups by PD-L1 status, and significant differences in clinicopathologic characteristics between the two groups were assessed. RESULTS Tumor tissues from 67 ESCC patients(33.5%) were PDL1-positive. Positive p16 expression was observed in 21 specimens(10.5%). The H-score for c-Met expression was ≥ 50 in 42 specimens(21.0%). Although PDL1-positivity was not significantly correlated with any clinical characteristics including age, sex, smoking/alcoholic history, stage, or differentiation, H-scores for c-Met expression were significantly associated with PDL1-positivity(OR = 2.34, 95%CI: 1.16-4.72, P = 0.017). PD-L1 expression was not significantly associated with a change in overall survival(P = 0.656). In contrast, the locoregional relapse rate tended to increase(P = 0.134), and the distant metastasis rate was significantly increased(HR = 1.72, 95%CI: 1.01-2.79, P = 0.028) in patients with PD-L1-positive ESCC compared to those with PD-L1-negative *** PD-L1 expression is positively correlated with c-Met expression in ESCC. PD-L1 may play a critical role in distant failure and progression of ESCC.

关键词： Esophageal neoplasm Programmed death ligand-1 protein c-Met protein Prognosis p16INK4A protein

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Behavioral changes of water flea Daphnia *** exposed to the three toxicants diazinon,copper,and cadmium

Behavioral changes of water flea Daphnia *** exposed to the ...

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第三世界生态高峰会

作者： yoon Sung Jin Lee Sung Kyu yoon Hong gi Park Hahn Oh Korea Institute of Toxicology 100 Jangdong Yuseong-guDaejeon 305-343Korea Bioneer corporation 49-3 Munpyeong-dongDaedeok-guDaejeon 306-220Korea

Behavioral changes of 2 to 3 days old water flea Daphnia *** were observed using an aqualann system,Prototype-Ⅲ,was developed for monitoring system of a hazardous chemicals management in wat

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Production of Transgenic Korean Native Cattle Expressing Enhanced Green Fluorescent Protein Using a FIV-Based Lentiviral Vector Injected into MII Oocytes

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Journal of Genetics and Genomics 2013年第1期40卷 37-43页

作者： Yong-Nan Xu Sang-Jun Uhm Bon-Chul Koo Mo-Sun Kwon Ji-Yeol Roh Jung-Seok Yang Hyun-Yong Choi Young-Tae heo Xiang-Shun Cui Joon-Ho yoon Dae-Hwan Ko Teoan Kim Nam-Hyung Kim Department of Animal Sciences Chungbuk National University361-763Republic of Korea Department of Animal Science and Biotechnology Sangji Youngseo College220-713Republic of Korea Department of Physiology Catholic University of Daegu School of Medicine712-702Republic of Korea Department of Animal Resources Community KongJu National University340-702Republic of Korea

The potential benefits of generating and using transgenic cattle range from improvements in agriculture to the production of large quantities of pharmaceutically relevant proteins. Previous studies have attempted to produce transgenic cattle and other livestock by pronuclear injection and somatic cell nuclear transfer, but these approaches have been largely ineffective; however, a third approach, lentivirus-mediated transgenesis, has successfully produced transgenic livestock. In this study, we generated transgenic （TG） Korean native cattle using perivitelline space injection of viral vectors, which expressed enhanced green fluorescent protein （EGFP） systemically. Two different types of lentiviral vectors derived from feline immunodeficiency virus （FIV） and human immunodeficiency virus （HIV） carrying EGFP were injected into the perivitelline space of MII oocytes. EGFP expression at 8-cell stage was significantly higher in the FIV group compared to the HIV group （47.5% ± 2.2% v.s. 22.9% 4± 2.9%）. Eight-cell embryos that expressed EGFP were cultured into blastocysts and then transferred into 40 heifers. Ten heifers were successfully impregnated and delivered 10 healthy calves. All of these calves expressed EGFP as detected by in vivo imaging, PCR and Southern blotting. In addition, we established an EGFP-expressing cell line from TG calves, which was followed by nuclear transfer （NT）. Recloned 8-cell embryos also expressed EGFP, and there were no differences in the rates of fusion, cleavage and development between cells derived from TG and non-TG calves, which were subsequently used for NT. These results illustrate that FIV-based lentiviruses are useful for the production of TG cattle. Moreover, our established EGFP cell line can be used for additional studies that involve induced pluripotent stem cells.

关键词： Transgenic cattle Lentiviral vector Perivitelline space injection Enhanced green fluorescent protein

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Purification of Astaxanthin from Laminaria japonica by Ionic Liquid-based Monolithic Cartridge

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Chemical Research in Chinese Universities 2012年第3期28卷 406-409页

作者： yoon Chang-hwan ROW Kyung-ho Department of Chemical Engineering Inha UniversityIncheon 402-751Korea

An effective and accurate method was developed for the extraction of astaxanthin from Laminariajapo- nica with subsequent separation by ionic liquid-based monolithic cartridge. The optimized extraction conditions in- cluding extraction solvent（ethanol）, extraction time（90 min） and ultrasonic power（75 W） were obtained by systema- tical investigation. Chromatographic analysis was performed on a C18 column with ultraviolet（UV） detection at 476 nm, and a solution consisting of methanol/acetonitrile/H2O/dichloromethane（83：6：6：5, volume ratio） was used as the mobile phase at a flow rate of 0.7 mL/min. After ionic liquid-based monolithic solid phase extraction, 17.82 μg/g as- taxanthin was obtained from Laminaria japonica. This ionic liquid-based monolithic cartridge exhibits high affinity and selectivity for astaxanthin, and it can be potentially used as the stationary phase of high performance liquid chromatography（HPLC）.

关键词： Laminariajaponica Astaxanthin Extraction Ionic liquid Cartridge

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High prevalence of osteoporosis in patients with gastric adenocarcinoma following gastrectomy

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World Journal of Gastroenterology 2007年第48期13卷 6492-6497页

作者： Jung Sub Lim Sang Bum Kim Ho-yoon Bang gi Jeong Cheon Jong-Inn Lee Department of Pediatrics Korea Cancer Center Hospital Department of Surgery Korea Cancer Center Hospital Department of Nuclear Medicine Korea Cancer Center Hospital

AIM: To evaluate the prevalence and predictive factors of osteoporosis in patients with gastric adenocarcinoma after gastrectomy. METHODS: The study included 133 patients diagnosed with gastric adenocarcinoma but who did not undergo prior diagnostic work-up for osteoporosis. Bone mineral density (BMD) was measured by dual-energy X-ray absorptiometry (DXA) and vertebral deformity was assessed by plain X-rays. We evaluated the effects of age, sex, body mass index (BMI), anemia, back pain, vertebral deformity, tumor staging, reconstruction type, and past medical history to determine predictive factors of osteoporosis in these patients. RESULTS: The prevalence of osteoporosis in the lumbar spine was 38.3% (male, 28.9%; female, 54.0%), and 15.0% in the femoral neck (male, 10.8%; female, 22.0%). The vertebral deformity rate was 46.6% (male, 43.4%; female, 52.0%). Age, BMI and hemoglobin correlated with BMD (P 64 years were independent predictive factors of osteoporosis in multivariate analysis. In females, back pain was an independent factor for osteoporosis. CONCLUSION: The results of this study revealed that prevalence of osteoporosis and vertebral bone deformity rate were high in gastric cancer patients, regardless of post-gastrectomy duration and operation type. Early diagnosis and a proper management plan must be established in these patients.

关键词：胃癌胃切除术骨密度治疗方法

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Field Trial of 40 Gbit/s ETDM Prototype System over 219 km of Installed Single Mode Fiber

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光学学报 2003年第S1期23卷 659-660页

作者： Sang Soo Lee Hyun Woo Cho Sang Kyu Lim Ki Ho Han Jin Soo Han Moo Jung Chu Je Soo Ko Kyeong-Mo yoon Yong-gi Lee Optical Communication Department Electronics and Telecommunications Research Institute Deajeon KoreaOptical Communication Department Electronics and Telecommunications Research Institute Deajeon KoreaOptical Communication Department Electronics and Telecommunications Research Institute Deajeon KoreaOptical Communication Department Electronics and Telecommunications Research Institute Deajeon KoreaOptical Communication Department Electronics and Telecommunications Research Institute Deajeon KoreaOptical Communication Department Electronics and Telecommunications Research Institute Deajeon KoreaOptical Communication Department Electronics and Telecommunications Research Institute Deajeon KoreaOptical Transmission Research Team Technical Laboratory KT Deajeon KoreaOptical Transmission Research Team Technical Laboratory KT Deajeon Korea

Transmission of 40Gbit/s NRZ signal was successfully demonstrated over 219km of installed SMF in KT's Daejeon area network. After transmission, the measured power penalty was 0.5dB for all the tributary channels.

关键词： of ET be over Field Trial of 40 Gbit/s ETDM Prototype System over 219 km of Installed Single Mode Fiber

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ULTRASTRUCTURAL STUDY OF VITELLOGENIC MECHANISM DURING OOGENESIS AND REPRODUCTIVE CYCLE IN FEMALE MERETRIX LUSORIA（BIV ALBIA:VENERIDAE）

ULTRASTRUCTURAL STUDY OF VITELLOGENIC MECHANISM DURING OOGEN...

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Ⅸ International Congress on Medical and Applied Malacology

作者： Kwan Ha Park Jong-Man yoon Dae-gi Kim Ee-Yung Chung Department of Aquatic Life Medicine Kunsan National University Gunsan 573-701Korea. Department of Aquatic Life Medicine Kunsan National University Gunsan 573-701Korea. Department of Fisheries Science Graduate School Kunsan National UniversityGunsan 573-701Korea School of Marine Life Science Kunsan National University Gunsan 573-701Korea.

＜正＞Vitellogenic mechanism during oogenesis and the reproductive cycle of Meretrix lusoria were investigated by light and electron microscope *** were collected monthly from the intertidal and subtidal zones on the ...

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Effects of Substrate Temperature on the Properties of Zn-ln-Sn-O Films Deposited on Flexible PES Substrate

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材料科学与工程（中英文A版） 2011年第5X期1卷 627-631页

作者： gi-Seok heo Jae-Cheol Park Byeong-Yun Oh Chang-Woo Hong Sang-Jun Cha Jeong-Ju Woo Tae-Won Kim National Center for Nanoprocess and Equipments Honam Technology Service Division Korea Institute of Industrial Technology Gwangju Korea Department of Physics Chonnam National University Gwang/u Korea

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Treatment of Postoperative Portal Vein and Superior Mesenteric Vein Thrombosis:Efficacy of Balloon Angioplasty Followed By Stent Placement and Vice Versa

Treatment of Postoperative Portal Vein and Superior Mesenter...

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第九届中国肿瘤微创治疗学术大会

作者： Guangshao Cao Tianxiao Li gi-Young Ko Kyu-Bo Sung Hyun-Ki yoon Dong Ⅱ Gwon Department of Interventional Radiology Henan Provincial People's Hospital Department of Radiology and Research Institute of Radiology Asan Medical CenterUniversity of Ulsan College of Medicine

＜正＞Objective To evaluate the safety and efficacy of balloon angioplasty followed by stent placement and vice versa without thrombolysis or thrombectomy for treating postoperative portal vein thrombosis（PVT）. Materials and methods Sixteen patients with postoperative PVT underwent percutaneous transhepatic interventions(14 patients underwent balloon angioplasty followed by stent placement and vice versa without thrombolysis or thrombectomy,1 underwent thrombolysis,

关键词： Portal vein thrombosis Balloon angioplasty Stent

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