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Blockch.in Tech.ology Based Information Classification Management Service

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Computers, Materials & Continua 2021年第5期67卷 1489-1501页

作者： Gi-Wan h.ng jeong-Wook kim h.ngbae Ch.ng Department of Security Convergence Graduate SchoolChung-Ang UniversitySeoul06974Korea Department of Industrial Security Chung-Ang UniversitySeoul06974Korea

h.per-connectivity in Industry 4.0 h.s resulted in not only a rapid increase in th. amount of information,but also th. expansion of areas and assets to be *** terms of information security,it h.s led to an enormous economic cost due to th. various and numerous security solutions used in protecting th. increased ***,it h.s caused difficulties in managing th.se issues due to reasons such.as mutual interference,countless security events and logs’data,*** th.s security environment,an organization sh.uld identify and classify assets based on th. value of data and th.ir security perspective,and th.n apply appropriate protection measures according to th. assets’security classification for effective security *** th.re are still difficulties stemming from th. need to manage numerous security solutions in order to protect th. classified *** th.s paper,we propose an information classification management service based on blockch.in,wh.ch.presents and uses a model of th. value of data and th. security *** records transactions of classifying assets and managing assets by each.class in a distributed ledger of *** proposed service reduces assets to be protected and security solutions to be applied,and provides security measures at th. platform level rath.r th.n individual security solutions,by using *** th. rapidly ch.nging security environment of Industry 4.0,th.s proposed service enables economic security,provides a new integrated security platform,and demonstrates service value.

关键词： Information classification data integrity document security blockch.in CIA

Effect of expanding nanocellulose sponge on nasal mucosal defects in an animal model

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Regenerative Biomaterials 2020年第1期7卷 47-52页

作者： JiWon kim Kyungbae Woo jeong Mi kim Mi Eun Ch.i Young-Mo kim Su-Geun Yang Bong Sup Sh.m jeong-Seok Ch.i Department of Otorh.nolaryngology Inha UniversityCollege of Medicine27 Inhang-roJung-guIncheon 22332Republic of Korea Department of Ch.mical Engineering Inha University100 InharoMichuholguIncheon 22212Republic of Korea Department of New Drug Development Inha UniversityCollege of MedicineB-308Chungsuk Bldg.366Seohae-DaeroJung-GuIncheon 22332Republic of Korea

Nanocellulose h.s emerged for a wide range of applications in biomedical engineering because of its water absorption capacity,appropriate *** investigated th. h.mostatic and regenerative abilities of an expanding polyvinyl alcoh.l(PVA)-nanocellulose sponge on nasal mucosal defects.A 3 mm-diameter nasal defect was made in experimental *** were divided into four groups with.control,vaseline,PVA and PVA-nanocellulose packing *** th. defect was created,bleeding times and amounts were *** materials were removed on experimental day(ED)*** ED 3,7 and 14,h.stological analysis and immunoh.stoch.mical study for neutroph.ls were *** cells were counted and epith.lial th.cknesses were *** amounts and times in th. vaseline packing group were smaller th.n in th. PVA ***-nanocellulose group sh.wed less neutroph.ls th.n in th. oth.r groups on ED *** epith.lium th.ckness in th. PVA-nanocellulose group was significantly smaller th.n in th. control group at ED 7,but at ED 14,th.re was no significant intergroup *** group h.d a significant lower inflammatory cell count th.n th. control group on ED ***-nanocellulose sponge applied to nasal mucosal defects can significantly enh.nce mucosal regeneration during early wound h.aling.

关键词： polyvinyl alcoh.l nasal mucosa nanocellulose

Effect of small molecular surfactants on ph.sical,turbidimetric,and rh.ological properties of Pickering nanoemulsions stabilized with.wh.y protein isolate

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Food Bioscience 2023年第1期51卷 382-390页

作者： Yun jeong kim Bum-Keun kim Min h.eock Lee Research.Group of Food Processing Korea Food Research InstituteWanju-gunJeollabuk-do55365Republic of Korea Department of Food Biotech.ology University of Science and TechnologyDaejeon34113Republic of Korea Department of Food Science and Biotech.ology Kyung Hee UniversityYongin17104Republic of Korea

In th. present study,Pickering nanoemulsions(oil-in-water)co-stabilized with.wh.y protein isolate(WPI)and th.ee types of small molecular surfactants were ***(CTAB),sodium dodecyl sulfate(SDS),and Tween 20 were used as cationic,anionic,and nonionic surfactants,*** investigate effects of small molecular surfactants on ph.sical stability,turbidimetric,and rh.ological properties of protein-stabilized Pickering nanoemulsions,various treatments mimicking food processing including ph.h.at,freeze-th.w,and salt were *** revealed th.t th. droplet size and polydispersity index of th. nanoemulsion prepared with.WPI alone were increased after h.at treatment or at ph.condition near th. isoelectric point of WPI,indicating a low ph.sical ***,nanoemulsions prepared with.WPI-SDS or WPI-CTAB maintained th.ir initial state even after h.at treatment including ***,th.re was no significant ch.nge in th. droplet size of th. nanoemulsion prepared with.WPI-Tween after freeze-th.w and salt *** Pickering nanoemulsion stabilized with.both.WPI and SDS h.d th. h.gh.st viscosity,Turbiscan stability index(TSI)was th. ***,th. TSI of th. nanoemulsions added with.CTAB or Tween 20 was lower th.n th.t of th. nanoemulsions prepared with.WPI alone,confirming th.t th. storage stability of protein-stabilized Pickering nanoemulsion was improved by adding small molecular surfactants.

关键词： Wh.y protein isolate Surfactant Emulsion stability Environmental stress Turbidimetry Food processing

Math.matical Modeling and Simulation of Antibubble Dynamics

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Numerical Math.matics(Th.ory,Meth.ds and Applications) 2020年第1期13卷 81-98页

作者： Junxiang Yang Yibao Li Darae jeong Junseok kim Department of Math.matics Korea UniversitySeoul 02841Republic of Korea Sch.ol of Math.matics and Statistics Xi’an Jiaotong UniversityXi’an 710049China Department of Math.matics Kangwon National UniversityGangwon-do 24341Republic of Korea

In th.s study,we propose a math.matical model and perform numerical simulations for th. antibubble *** antibubble is a droplet of liquid sur-rounded by a th.n film of a ligh.er liquid,wh.ch.is also in a h.avier surrounding *** model is based on a ph.se-field meth.d using a conservative Allen–Cah. equa-tion with.a space-time dependent Lagrange multiplier and a modified Navier–Stokes *** th.s model,th. inner fluid,middle fluid and outer fluid locate in specific diffusive layer regions according to specific ph.se filed(order parameter)*** we represent th. antibubble with.conventional binary or ternary ph.se-field models,th.n it is difficult to h.ve stable th.n ***,th. proposed approach.can prevent nonph.sical breakup of fluid film during th. *** numerical tests are performed to verify th. efficiency of th. proposed model.

关键词： Antibubble conservative Allen-Cah. equation Navier-Stokes equation

Mech.nical and electroch.mical ch.racteristics evaluation in annealing treatment for sh.p material

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中国有色金属学会会刊：英文版 2009年第B09期19卷 40-44页

作者： Seok-Ki JANG Young-Jae jeong Seong-Jong kim Division of Marine Engineering Mokpo Maritime University Jeonnam Tech.o Park

Th. effect of h.at treatment on th. electroch.mical and mech.nical properties of SS400 steel was investigated, and th. effects of annealing conditions on notch.d specimens subjected to th. slow strain rate test (SSRT) were studied. Th. results sh.w th.t no correlations are observed among th. maximum tensile strength. yield strength. and stress corrosion cracking. In contrast, th. elongation and time-to-fracture are improved with.stress-relieving annealing compared with.th. as-received condition. Th. elongation, time-to-fracture, and number of dimples increase with.annealing h.at treatment.

关键词：退火处理电化学船舶材料特性评价机械 SS400钢应力腐蚀开裂消除应力退火

New para-magnetic(CoFeNi)(50)(CrMo)(50-x)(CB)x(x=20,25,30)non-equiatomic h.gh.entropy metallic glasses with.wide supercooled liquid region and excellent mech.nical properties

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Journal of Materials Science & Tech.ology 2020年第8期36卷 135-143页

作者： jeong Tae kim Sung h.an h.ng Jin Man Park Jürgen Eckert Ki Buem kim Erich.Sch.id Institute of Materials Science Austrian Academy of Sciences(ÖAW)Jahnstrae 128700LeobenAustria h.brid Materials Center(h.C) Department of Nanotechnology and Advanced Materials EngineeringSejong University209Neungdong-roGwangjin-guSeoul143-747Republic of Korea Global Tech.ology Center(GTC) Samsung Electronics Co.Ltd129 Samsung-roYeongtong-guSuwonsiGyeonggi-do443-742Republic of Korea Department of Materials Science Chair of Materials PhysicsMontanuniversität LeobenJahnstraße 128700LeobenAustria

In th.s study,h.gh.entropy metallic glasses(h.MGs)were developed th.ough.a combination of concepts for designing metallic glasses(main element+transition metal+metalloid element)and h.gh.entropy alloys(more th.n five elements,each.element h.ving an atomic concentration between 5 at.%and 35 at.%).Th. developed metallic glass alloys are composed of Co-Fe-Ni main elements,transition metals(Cr,Mo)and metalloid elements(C,B).Moreover,th. present work reports th. th.rmal,mech.nical and magnetic properties of(CoFeNi)(50)(CrMo)(50-x)(CB)x alloys with.x=20,25,*** developed as-spun h.MGs exh.bit typical paramagnetic properties even for a h.gh.amount of ferromagnetic elements(Co,Fe,and Ni)and h.ve h.gh.elastic modulus(103–160 GPa)and h.rdness(14–27 GPa),th.s possessing mech.nical properties similar to well-known Co-based metallic glasses(Co-Cr-Mo-C-B system).In addition,some of th. bulk samples prepared with.a diameter of 2 mm form bulk metallic glasses with.a h.gh.compressive strength.around 3.5 *** mech.nisms determining th. stability of th. supercooled liquid,as well as th. paramagnetic and mech.nical properties for th. developed non-equiatomic h.MGs,are discussed.

关键词： Metallic glasses Paramagnetism h.gh.entropy alloys Ph.se stability

Stud welding for fixation of cryogenic insulation of membrane tanks in LNG sh.p building

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中国有色金属学会会刊：英文版 2009年第B09期19卷 271-275页

作者： jeong-Soo LEE Young-Soo RYU Nam-In kim Bong-Joon kim Yoo-Kyung kim Myung-h.un kim h.njin h.avy Industries & Construction Co. Ltd Department of Naval Arch.tecture and Ocean Engineering Pusan National University

Th. support plates including all of th. inner h.lls such.as E grade steel, weld seams and SUS304L were considered to establish.th. optimal stud welding condition in LNG sh.p building. Th. stainless steel plate was especially applied to th. bracket on th. liquid dome. Th. polish.d and etch.d surfaces of th. welded stud and support plate were examined if th. bead was properly formed. With.th. micrograph.c examination, th. fusion boundary of metal weld zone formed by stud welding was analyzed to optimize th. welding parameters. And also th. analysis of th. unacceptable welding faults such.as cold and h.t weld were performed. Th. mech.nical tests such.as tensile tests and bending tests were carried out to reveal any abnormal variation in th. relationsh.p of process parameters and th. strength.

关键词：螺柱焊接 LNG船绝缘膜优化工艺参数低温坦克不锈钢板最佳条件

Optimal proximal resection margin distance for gastrectomy in advanced gastric cancer

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World Journal of Gastroenterology 2020年第18期26卷 2232-2246页

作者： Amy kim Beom Su kim jeong h.an Yook Byung Sik kim Division of Stomach.Surgery Department of SurgeryAsan Medical CenterUniversity of Ulsan College of MedicineSeoul 05505South Korea Department of Surgery Korea University Medical Center Ansan HospitalAnsanGyeonggi-do 15355South Korea

BACKGROUND Th. conventional guidelines to obtain a safe proximal resection margin(PRM)of5-6 cm during advanced gastric cancer(AGC)surgery are still applied by many surgeons across th. *** recent studies h.ve raised questions regarding th. need for such.extensive resection,but with.ut reach.ng *** study was designed to prove th.t th. PRM distance does not affect th. prognosis of patients wh. undergo gastrectomy for *** To investigate th. influence of th. PRM distance on th. prognosis of patients wh. underwent gastrectomy for *** Electronic medical records of 1518 patients wh. underwent curative gastrectomy for AGC between June 2004 and December 2007 at Asan Medical Center,a tertiary care center in Korea,were reviewed retrospectively for th. *** demograph.cs and clinicopath.logic outcomes were compared between patients wh. underwent surgery with.different PRM distances using one-way ANOVA and Fish.r’s exact test for continuous and categorical variables,*** influence of PRM on recurrence-free survival and overall survival were analyzed using Kaplan-Meier survival analysis and Cox proportional h.zard *** Th. median PRM distance was 4.8 cm and 3.5 cm in th. distal gastrectomy(DG)and total gastrectomy(TG)groups,*** coh.rts in th. DG and TG groups were subdivided into different groups according to th. PRM distance;≤1.0 cm,1.1-3.0 cm,3.1-5.0 cm and>5.0 *** DG and TG groups sh.wed nostatistical difference in recurrence rate(23.5%vs 30.6%vs 24.0%vs 24.7%,P=0.765)or local recurrence rate(5.9%vs 6.5%vs 8.4%vs 6.2%,P=0.727)according to th. distance of *** both.groups,Kalpan-Meier analysis sh.wed no statistical difference in recurrence-free survival(P=0.467 in DG group;P=0.155 in TG group)or overall survival(P=0.503 in DG group;P=0.155 in TG group)according to th. PRM *** analysis using Cox proportional h.zard model revealed th.t in both.groups,th.re was no significant differ

关键词： Stomach.neoplasms Gastrectomy Margins of excision Prognosis Recurrence

Mach.ne learning identification of symmetrized base states of Rydberg atoms

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Frontiers of ph.sics 2022年第1期17卷 39-55页

作者： Daryl Ryan Ch.ng Minh.uk kim Jaewook Ah. h.ejeong jeong Department of Ph.sics Faculty of ScienceUniversity of MalayaKuala Lumpur50603Malaysia Department of Ph.sics KAISTDaejeon34141Korea

Studying th. complex quantum dynamics of interacting many-body systems is one of th. most ch.llenging areas in modern ph.sics. h.re, we use mach.ne learning (ML) models to identify th. symmetrized base states of interacting Rydberg atoms of various atom numbers (up to six) and geometric configurations. To obtain th. data set for training th. ML classifiers, we generate Rydberg excitation probability profiles th.t simulate experimental data by utilizing Lindblad equations th.t incorporate laser intensities and ph.se noise. Th.n, we classify th. data sets using support vector mach.nes (SVMs) and random forest classifiers (RFCs). With.th.se ML models, we ach.eve h.gh.accuracy of up to 100% for data sets containing only a few h.ndred samples, especially for th. closed atom configurations such.as th. pentagonal (five atoms) and h.xagonal (six atoms) systems. Th. results demonstrate th.t computationally cost-effective ML models can be used in th. identification of Rydberg atom configurations.

关键词： Rydberg atoms mach.ne learning