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Large cavernous hemangioma in the cecum treated by laparoscopic ileocecal resection

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World Journal of Gastroenterology 2009年第26期15卷 3319-3321页

作者： jung wook huh Sang Hyuk Cho Jae Hyuk Lee Hyeong Rok Kim Department of Surgery Chonnam National University Hwasun Hospital and Medical School Department of Pathology Chonnam National University Hwasun Hospital and Medical School

A cavernous hemangioma of the cecum is a rare vascular malformation but is clinically important because of the possibility of massive *** report a case of a large cavernous hemangioma with pericolic inf iltration in t... 详细信息

关键词： Cavernous hemangioma Cecum Laparoscopic surgery

Quantitative comparison of similarity measure and entropy for fuzzy sets

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Journal of Central South University 2011年第6期18卷 2045-2049页

作者： jung Dong-yean CHOI jung-wook PARK wook-Je LEE Sang-Hyuk Daeho Tech Changwon Gyeongnam Institute for Information and Electronics Research Inha University Department of Electrical and Electronic Engineering Xi'an Jiaotong-Liverpool University

Comparison and data analysis with the similarity measures and entropy for fuzzy sets were carried out. The distance proportional value between the fuzzy set and the corresponding crisp set was considered by the fuzzy entropy. The relation between the similarity measure and the entropy for fuzzy set was also analyzed. The fuzzy entropy was reformulated as the dissimilarity measure. Furthermore, crisp set having the minimum uncertainty with respect to the corresponding fuzzy set was also proposed. Finally, derivation of a similarity measure from entropy with the help of total information property was derived. A simple example shows the relation between similarity measure and fuzzy entropy, in which the summation of similarity measure and fuzzy entropy represents a constant value.

关键词： similarity measure fuzzy entropy minimum uncertainty quantitative comparison

Some Results on Noetherian Warfield Domains

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Algebra Colloquium 2022年第1期29卷 67-78页

作者： Kui Hu jung wook Lim Dechuan Zhou College of Science Southwest University of Science and Technology MianyangSichuan 621010China Kyungpook National University Daegu 41566Korea Department of Mathematics College of Natural Sciences Kyungpook National UniversityDaegu 41566Korea

Let R be a *** this paper,we show that if R is one dimensional,then R is a Noetherian Warfield domain if and only if every maximal ideal of R is 2-generated and for every maximal ideal M of R,M is divisorial in the ring(M:M).We also prove that a Noetherian domain R is a Noetherian Warfield domain if and only if for every maximal ideal M of R,M^(2) can be generated by two ***,we give a sufficient condition under which all ideals of R are strongly Gorenstein projective.

关键词： strongly Gorenstein projective module Noetherian Warfield domain strongly Gorenstein Dedekind domain

Room-temperature synthesis of ZrSnO4 nanoparticles for electron transport layer in efficient planar hetrojunction perovskite solar cells

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Journal of Materials Science & Technology 2020年第7期42卷 38-45页

作者： Young wook Noh In Su Jin Sang Hyun Park Jae Woong jung Department of Advanced Materials Engineering for Information&Electronics Kyung Hee University1732 Deogyeong-daeroGiheung-guYongin-siGyeonggi-do 446-701Republic of Korea

The interface engineering plays a key role in controlled optoelectronic properties of perovskite photovoltaic devices,and thus the electron transport layer(ETL)material with tailored optoelectronic properties remains a challenge for achieving high photovoltaic performance of planar perovskite solar cells(PSCs).Here,the fine and crystalline zirconium stanate(ZrSnO4)nanoparticles(NPs)was synthesized at low temperature,and its optoelectronic properties are systematically *** from the favorable electronic structure of ZrSnO4 NPs for applications in ETL,efficient electron transport and extraction with suppre s sed charge recombination are achieved at the interface of perovskite *** a result,the optimized ZrSnO4 NPs synthesized at room-temperature deliver the optimized power conversion efficiency up to 16.76%with acceptable *** work opens up a new class of ternary metal oxide for the use in ETL of the planar PSCs and should pave the way toward designing new interfacial materials for practical optoelectronic devices.

关键词： ZrSnO4 Electron transport layer Nanoparticles Perovskite solar cells

Non-metallic inclusions in electroslag remelting:a review

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Journal of Iron and Steel Research International 2021年第12期28卷 1483-1503页

作者： Cheng-bin Shi Shi-jun Wang Jing Li jung-wook Cho Institute of Advanced Steel State Key Laboratory of Advanced MetallurgyUniversity of Science and Technology Beijing(USTB)Beijing100083China Graduate Institute of Ferrous and Energy Materials Technology Pohang University of Science and Technology(POSTECH)Pohang790-784Republic of Korea

Non-metallic inclusion in electroslag remelting is a constant topic that has been studied for *** results and conclusions are obtained on some of the subjects from these previous *** differences originate in part from different experimental conditions,including original inclusion chemistries in consumable electrode,slag composition,oxygen level,liquid metal compositions,deoxidation schemes,and melting rates of electroslag *** advances in the operating practices of inclusion control in electroslag remelting production are *** evolution during the electroslag remelting and related processing parameters are also reviewed and *** role of the reoxidation of liquid steel during electroslag remelting on oxide inclusion composition is *** generation of inclusions in remelted ingot is critically *** and remaining issues are noted.

关键词： Non-metallic inclusion Electroslag remelting Inclusion removal Reoxidation

Single-crystalline-level properties of ultrathin SrRuO_(3) flexible membranes with wide and clean surface

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npj Flexible Electronics 2022年第1期6卷 210-215页

作者： Dongha Kim wook Ki jung Shinbuhm Lee Department of Physics and Chemistry Department of Emerging Materials ScienceDGISTDaegu 42988Republic of Korea Agency for Defence Development Daejeon 34186Republic of Korea

Transferring single-crystalline(SC)membranes to flexible substrates has been increasingly studied,enabling emerging functionality and enhanced performance of various devices.A commonly used support-assisted transfer process inevitably leaves dirty residue on material surfaces,limiting the further development of surface-related ***,we scale down the thickness of flexible SC SrRuO_(3)(SRO)membranes to 15 nm with a clean surface area of 2.5×2.5 mm^(2).This is accomplished by making the polyethylene terephthalate(PET)substrate surface hydrophilic via oxygen plasma treatment,thereby reducing the surface *** ultrathin,clean,wide,and flexible SC SRO membranes guarantee a high transmittance of up to 60%,a low resistivity of 10^(−4)−10^(−3)Ωcm at room temperature,and band ferromagnetism below 150 K with a high magnetic moment of~0.5μB/Ru at 10 *** SC-level properties of our SRO membranes imply their potential use in state-of-the-art platforms for next-generation electronics and energy devices.

关键词： crystalline thereby guarantee

Fluoride evaporation and crystallization behavior of CaF_2–CaO–Al_2O_3–(TiO_2) slag for electroslag remelting of Ti-containing steels

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International Journal of Minerals,Metallurgy and Materials 2016年第6期23卷 627-636页

作者： Cheng-bin Shi jung-wook Cho Ding-li Zheng Jing Li State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing Graduate Institute of Ferrous Technology Pohang University of Science and Technology

To elucidate the behavior of slag films in an electroslag remelting process, the fluoride evaporation and crystallization of CaF2–CaO–Al2O3–（TiO2） slags were studied using the single hot thermocouple technique. The crystallization mechanism of TiO2-bearing slag was identified based on kinetic analysis. The fluoride evaporation and incubation time of crystallization in TiO2-free slag are found to considerably decrease with decreasing isothermal temperature down to 1503 K. Fish-bone and flower-like CaO crystals precipitate in TiO2-free slag melt, which is accompanied by CaF2 evaporation from slag melt above 1503 K. Below 1503 K, only near-spherical CaF2 crystals form with an incubation time of less than 1 s, and the crystallization is completed within 1 s. The addition of 8.1wt% TiO2 largely prevents the fluoride evaporation from slag melt and promotes the slag crystallization. TiO2 addition leads to the precipitation of needle-like perovskite（CaTiO3） crystals instead of CaO crystals in the slag. The crystallization of perovskite（CaTiO3） occurs by bulk nucleation and diffusion-controlled one-dimensional growth.

关键词： electroslag remelting slag crystallization crystallization kinetics fluorides evaporation

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Journal of Central South University 2011年第5期18卷 1602-1608页

作者： LEE Sang-Hyuk PARK wook-Je jung Dong-yean Department of Electrical and Electronic Engineering Xi'an Jiaotong-Liverpool University Institute for Information and Electronics Research Inha University253 Yonghyun-dongNam-GuIncheon402-751Korea Daeho Technology Korea Co. LtdChangwonGyeongnam641-773Korea

The similarity computations for fuzzy membership function pairs were carried *** number related knowledge was introduced,and conventional similarity was compared with distance based similarity *** usefulness of the proposed similarity measure was *** results show that the proposed similarity measure could be applied to ordinary fuzzy membership functions,though it was not easy to *** conventional results on the calculation of similarity for fuzzy membership pair,fuzzy membership-crisp pair and crisp-crisp pair were carried *** proposed distance based similarity measure represented rational performance with the heuristic point of ***,troublesome in fuzzy number based similarity measure for abnormal universe of discourse case was ***,the similarity measure computation for various membership function pairs was discussed with other conventional results.

关键词： similarity measure fuzzy number distance similarity evaluation fuzzy membership function

Intraoperative photodynamic therapy for tracheal mass in non-small cell lung cancer:A case report

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World Journal of Clinical Cases 2023年第16期11卷 3915-3920页

作者： Hee Suk jung Hyun jung Kim Kwan wook Kim Department of Thoracic and Cardiovascular Surgery CHA Bundang Medical CenterSeongnam-si 13496South Korea

BACKGROUND Tracheal neoplasms represent less than 0.1%of all malignancies and have no established treatment *** resection with reconstruction is the primary *** study demonstrates successful treatment of concurrent lung and tracheal tumors using surgical excision and intraoperative photodynamic therapy(PDT),highlighting the effectiveness and safety of this *** SUMMARY A 74-year-old male with a history of smoking and chronic obstructive pulmonary disease was diagnosed with tracheal squamous cell carcinoma and right lower lobe adenocarcinoma.A multidisciplinary team created a treatment plan involving tumor resection and *** tracheal tumor was removed through a tracheal incision and this was followed by intraluminal *** trachea was repaired and a right lower lobectomy was *** patient received a second PDT treatment postoperatively and was discharged 10 d after the tracheal surgery,without *** then underwent platinum-based chemotherapy for lymphovascular invasion of lung ***-month postoperative bronchoscopy revealed normal tracheal mucosa with a scar at the resection site and no evidence of tumor recurrence in the trachea or *** Our case of concurrent tracheal and lung cancers was successfully treated with surgical excision and intraoperative PDT which proved safe and effective in this patient.

关键词： Tracheal neoplasm Non-small cell lung carcinoma Pulmonary surgical procedure Photochemotherapy Prognosis Case report