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Ventral hernia after high-intensity focused ultrasound ablation for uterine fibroids treatment:A case report

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World Journal of Clinical Cases 2022年第30期10卷 11204-11209页

作者： Jung-woo park Hwa Yeon Choi Department of Obstetrics and Gynecology Dong-A University College of MedicineBusan 49201South Korea

BACKGROUND High-intensity focused ultrasound(HIFU) ablation is a minimally invasive approach in gynecology that is used to manage uterine *** this procedure is safe and effective,adverse outcomes are becoming a major *** SUMMARY We present a case of ventral hernia that occurred as a rare and delayed complication of HIFU ablation for uterine fibroids *** patient came to the hospital with abdominal bloating that occurred 6 mo after ultrasound-guided HIFU ablation for managing uterine *** ventral hernia,which occurred due to atrophied muscle layers following the procedure,was confirmed by imaging studies and intraoperative *** required a hernia repair with mesh and hysterectomy for definitive treatment of uterine *** High-intensity ultrasound ablation should be performed only on appropriate *** should be educated about potential complications of the procedure and the possibility of subsequent ***-procedural long-term follow-up for detecting delayed adverse effects is important.

关键词： Uterine fibroids High-intensity focused ultrasound ablation Conservative treatment Ventral hernia Complication Case report

Surgical outcome of pancreatic cancer using radical antegrade modular pancreatosplenectomy procedure

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World Journal of Gastroenterology 2012年第39期18卷 5595-5600页

作者： Ye Rim Chang Sung-Sik Han Sang-Jae park Seung Duk Lee Tae Suk Yoo Young-kyu Kim Tae Hyun Kim Sang Myung woo woo Jin Lee Eun kyung Hong Department of Surgery Seoul National University HospitalSeoul 110-744South Korea Center for Liver Cancer National Cancer CenterGyeonggido 411-764South Korea

AIM:To evaluate the surgical outcomes following radical antegrade modular pancreatosplenectomy (RAMPS) for pancreatic cancer. METHODS:Twenty-four patients underwent RAMPS with curative intent between January 2005 and June 2009 at the National Cancer Center, South Korea. Clinicopathologic data, including age, sex, operative findings, pathologic results, adjuvant therapy, postop-erative clinical course and follow-up data were retro-spectively collected and analyzed for this study. RESULTS:Twenty-one patients (87.5%) underwent distal pancreatectomy and 3 patients (12.5%) underwent total pancreatectomy using RAMPS. Nine patients (37.5%) underwent combined vessel resection, including 8 superior mesenteric-portal vein resections and 1 celiac axis resection. Two patients (8.3%) underwent combined resection of other organs, including the colon, stomach or duodenum. Negative tangential margins were achieved in 22 patients (91.7%). The mean tumor diameter for all patients was 4.09 ± 2.15 cm. The 2 patients with positive margins had a mean diameter of 7.25 cm. The mean number of retrieved lymph nodes was 20.92 ± 11.24 and the node positivity rate was 70.8%. The median survival of the 24 patients was 18.23 ± 6.02 mo. Patients with negative margins had a median survival of 21.80 ± 5.30 mo and those with positive margins had a median survival of 6.47 mo (P = 0.021). Nine patients (37.5%) had postoperative complications, but there were no postoperative mortalities. Pancreatic fistula occurred in 4 patients (16.7%):2 patients had a grade A fistula and 2 had a grade B fistula. On univariate analysis, histologic grade, positive tangential margin, pancreatic fistula and adjuvant therapy were significant prognostic factors for survival. CONCLUSION:RAMPS is a feasible procedure for achieving negative tangential margins in patients with carcinoma of the body and tail of the pancreas.

关键词： Carcinoma Pancreas Surgical resection Sur-vival Radical antegrade modular pancreatosplenectomy

Fingerprint inspired advanced end-effector and its applications

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Friction 2022年第10期10卷 1739-1750页

作者： Sung Ho LEE Hyo Sung KIM Han Jun park Moon kyu KWAK Department of Electrical Engineering and Computer Science University of MichiganAnn Arbor 48109USA Department of Mechanical Engineering Kyungpook National UniversityDaegu 41566Republic of Korea

The human fingertip consists of a fingerprint with many micro-grating *** main roles of the fingerprint could be divided into two purposes,namely,the enhancement of the frictional force and the effective transmittance of the *** this study,we present the fingerprint-inspired end-effector that has not only admirable frictional force but also electric *** end-effector is composed of fluorocarbon rubber,one of the famous materials to achieve high frictional force and *** various experiments,the novel performance of micro structured fluorocarbon rubber end-effector(MSFE)is characterized by comparing with a macroscale patterned sample(MPS),which has been already used in real industrial *** results are analyzed ***,as feasible applications,we suggest two applications based on the role of the *** is the conductive astronaut glove with high frictional force,and the other one is a non-slip pad for the next-generation glass transfer *** these experiments,we successfully observe the enhanced system performance and confirm the possibility of using the MSFE as feasible *** believe that the MSFE could be a useful and powerful alternative as an end-effector,not only in the aerospace industry but also in display manufacturing processes.

关键词： fingerprint end-effector fluorocarbon rubber(FKM) glass transfer system spacesuit

Priapism secondary to penile metastasis of rectal cancer

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World Journal of Gastroenterology 2009年第33期15卷 4209-4211页

作者： Ji Chan park wook Hyun Lee Min kyu Kang Suk Young park Division of Oncology Department of Internal MedicineThe Catholic University of KoreaDaejeon St. Mary's Hospital

Metastatic penile carcinoma is rare and usually originates from genitourinary tumors. The presenting symptoms or signs have been described as nonspecific except for priapism. Rectal adenocarcinoma is a very unusual source of metastatic penile carcinoma. We report a case of metastatic penile carcinoma that originated from the rectum. Symptomatic improvement occurred with palliative radiotherapy.

关键词： Penile neoplasms Neoplasm metastasis Priapism Rectal cancer

OTP-Based Software-Defined Cloud Architecture for Secure Dynamic Routing

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Computers, Materials & Continua 2022年第4期71卷 1035-1049页

作者： Tae woo Kim Yi Pan Jong Hyuk park Department of Computer Science and Engineering Seoul National University of Science and Technology(Seoultech)Seoul01811Korea Department of Computer Science Georgia State UniversityAtlanta30303USA

In the current era,anyone can freely access the Internet thanks to the development of information and communication *** cloud is attracting attention due to its ability to meet continuous user demands for ***,Cloud is effective for systems with large data flow such as the Internet of Things(IoT)systems and Smart ***,the use of traditional networking technology in the cloud causes network traffic overload and network security ***,the cloud requires efficient networking technology to solve the existing *** this paper,we propose one-time password-based software-defined cloud architecture for secure dynamic routing to mitigating the above-mention *** proposed cloud architecture provides a secure data path through dynamic routing using One-Time Internet Protocol(OTIP)algorithm between each *** the network side,we use software-defined technology to provide efficient network management and data *** introduce a software-defined cloud architecture that applies OTIP algorithms for secure dynamic *** conduct a comparative analysis between general IP communication and proposed OTIP communication *** evaluates the performance of OTIP ***,we examine the proposed software-defined cloud architecture,including how to apply OTIP in secure dynamic routing according to the results of the comparative analysis.

关键词： Secure routing dynamic routing one-time password softwaredefined network software-defined perimeter cloud computing

Replica higher-order topology of Hofstadter butterflies in twisted bilayer graphene

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npj Computational Materials 2023年第1期9卷 783-791页

作者： Sun-woo Kim Sunam Jeon Moon Jip park Youngkuk Kim Department of Physics KAISTDaejeonRepublic of Korea Department of Materials Science and Metallurgy University of CambridgeCambridgeUK Department of Energy Science Sungkyunkwan UniversitySuwonRepublic of Korea Center for Theoretical Physics of Complex Systems Institute for Basic Science(IBS)DaejeonRepublic of Korea Department of Physics Hanyang UniversitySeoulRepublic of Korea Department of Physics Sungkyunkwan UniversitySuwonRepublic of Korea

The Hofstadter energy spectrum of twisted bilayer graphene(TBG)is found to have recursive higher-order topological *** demonstrate that higher-order topological insulator(HOTI)phases,characterized by localized corner states,occur as replicas of the original HOTIs to fulfill the self-similarity of the Hofstadter *** show the existence of exact flux translational symmetry in TBG at all commensurate *** on this result,we identify that the original HOTI phase at zero flux is re-entrant at a half-flux periodicity,where the effective twofold rotation is *** addition,numerous replicas of the original HOTIs are found for fluxes without protecting *** the original HOTIs,replica HOTIs feature both localized corner states and edge-localized real-space topological *** replica HOTIs originate from the different interaction scales,namely,intralayer and interlayer couplings,in *** topological aspect of Hofstadter butterflies revealed in our results highlights symmetry-protected topology in quantum fractals.

关键词： properties spectrum topological

A Scientometric Study of Digital Literacy,ICT Literacy,Information Literacy,and Media Literacy

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Journal of Data and Information Science 2021年第2期6卷 116-138页

作者： Hyejin park Han Sung Kim Han woo park Educational Theory&Practice University at AlbanyState University of New York1400 Washington AvenueAlbanyNew York 12222USA Software Policy and Research Institute 22Daewangpangyo-ro 712beon-gilBundang-guSeongnam-siGyeonggi-do 13488Korea Media&Communication Interdisciplinary Program of Digital Convergence BusinessYeungnam University280 Daehak-RoGyeongsanGyeongsangbuk-do 38541Korea

Purpose:Digital literacy and related fields have received interests from scholars and practitioners for more than 20 years;nonetheless,academic communities need to systematically review how the fields have *** study aims to investigate the research trends of digital literacy and related concepts since the year of 2000,especially in ***/methodology/approach:The current study analyzes keywords,co-authorship,and cited publications in digital literacy through the scientometric *** journal articles have been retrieved from the WoS(Web of Science)using four keywords:"Digital literacy,""ICT literacy,""information literacy,"and"media literacy."Further,keywords,publications,and co-authorship are examined and further classified into clusters for more in-depth ***:Digital literacy is a multidisciplinary field that widely embraces literacy,ICT,the Internet,computer skill proficiency,science,nursing,health,and language *** participants,or study subjects,in digital literacy research range from primary students to professionals,and the co-authorship clusters are distinctive by countries in America and *** limitations:This paper analyzes one fixed chunk of a dataset obtained by searching for all four keywords at *** studies will retrieve the data from diverse disciplines and will trace the change of the leading research themes by time *** implications:To shed light on the findings,using customized digital literacy curriculums and technology is critical for learners at different ages to nurture digital literacy according to their learning *** need to cultivate their understanding of the social impact of exploiting technology and computational *** increase the originality of digital literacy-related studies,researchers from different countries and cultures may collaborate to investigate a broader range of digital literacy ***/value:The present study reviews

关键词： Digital literacy ICT literacy,Information literacy Media literacy Scientometrics

Effect of Sub-T_g Annealing on the Corrosion Resistance of the Cu–Zr Amorphous Alloys

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Acta Metallurgica Sinica(English Letters) 2018年第3期31卷 273-280页

作者： Sang-Soo Shin Hong-kyu Kim Jae-Chul Lee Ik-Min park Department of Materials Science and Engineering Pusan National University Advanced Analysis Center Korea Institute of Science and Technology Department of Materials Science and Engineering Korea University

Despite the economy of material cost and excellent toughness of Cu-based amorphous alloys,especially CusoZrso,their poor corrosion resistance to a chloride medium limits their widespread *** this study,corrosion tests were performed on the CusoZrso amorphous alloy with different degrees of short-range order,which were prepared by annealing below the glass transition temperature（Tg）.It was found that the corrosion resistance of amorphous alloys is improved to a significant level when the alloys were heated below *** studies showed that thermally activated relaxation process of created disorder,which occurs during sub-Tg annealing,is responsible for the improvement in the corrosion *** dynamics simulations performed on the Cu-Zr amorphous alloys demonstrated that the relaxation process of the alloys is associated with the formation of energetically stable icosahedra and icosahedron-like *** study highlights the effects of sub-Tg annealing on the improvement in the corrosion resistance of the amorphous alloys from the viewpoint the relaxation process of the short-range orders.

关键词： Amorphous alloys Corrosion Annealing Molecular dynamics Electrochemical performance

Lamellar sulfonated acid polymer-initiated in situ construction of robust LiF-rich SEI enabling superior charge transport for ultrastable and fast charging silicon anodes

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Journal of Energy Chemistry 2024年第11期98卷 134-143页

作者： Jungsoo park Song kyu Kang Junhyuk Ji Hwichan Ahn Gwan Hyeon park Minho Kim Won Bae Kim Graduate Institute of Ferrous&Eco Materials Technology(GIFT) Pohang University of Science and Technology(POSTECH)77 Cheongam-roNam-guPohang-siGyeongsangbuk-do 37673Republic of Korea Department of Chemical Engineering Pohang University of Science and Technology(POSTECH)77 Cheongam-RoNam-guPohang-siGyeongsangbuk-do 37673Republic of Korea

The extreme volume expansion of the silicon(Si) anodes during repeated cycles seriously induces undesirable interfacial side reactions,forming an unstable solid electrolyte interphase(SEI) that degrades the electrode integrity and cycle stability in lithium-ion batteries,limiting their practical *** considerable efforts to stabilize the SEI through surface modification,challenges persist in the development of high-performance Si anodes that effectively regulate intrinsic SEI properties and simultaneously facilitate electron/ion ***,a highly conductive and organic electrolyte-compatible lamellar p-toluenesulfonic acid-doped polyaniline(pTAP) layer is proposed for constructing a robust artificial SEI on Si nanoparticles to achieve fast charging,lo ng-term cycle lifespan and high areal *** spatially uniform pTAP layer,formed through a facile direct-encapsulation approach assisted by enriched hydrogen bonding,contributes to the effective formation of in situ SEI with an even distribution of the LiF-rich phase in its interlamination ***,the integrated artificial SEI facilitates isotropic ion/electron transport,increased robustness,and effectively dissipates stress from volume ***,a notably high rate performance of 570 mA h g^(-1),even at a substantially high current density of 10 A g^(-1),is achieved with excellent cyclic stability by showing a superior capacity over 1430 mA h g^(-1) at 1 A g^(-1) after 250 cycles and a high areal capacity of ca.2 mA h cm^(-2) at 0.5 C in a full cell *** study demonstrates that the rational design of conductive polymers with SEI modulation for surface protection has great potential for use in high-energy-density Si anodes.

关键词： Lithium-ion battery Silicon anode Conductive polymers Solid electrolyte interphase