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Effects of Wind Fences on the Wind Environment around jang Bog. Antarctic Research Station

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Advances in Atmospheric Sciences 2017年第12期34卷 1404-1414页

作者： jang-Woon WANg.Jae-Jin KIM Wonsik CHOI Da-Som MUN Jung.Eun KANg.Hataek KWON Jin-Soo KIM Ky.ng.Soo HAN Department of Environmental Atmospheric Sciences Pukyong National University 45Yongso-ro Korea Polar Research Institute 26 Songdomirae-ro Yeonsu-gu Department of Spatial Information Eng.neering Pukyong National University 45Yongso-ro

This study.investig.ted the flow characteristics altered by.jang Bog. Antarctic Research Station using.computational fluid dy.amics(CFD) modeling. The topog.aphy.and building. around jang Bog. Station were constructed with computeraided-desig. data in the CFD model domain. We simulated 16 cases with different inflow directions, and compared the flow characteristics with and without jang Bog. Station for each inflow direction. The wind data recorded by.the site’s automatic weather station(AWS) were used for comparison. Wind rose analy.is showed that the wind speed and direction after the construction of jang Bog. Station were quite different from those before construction. We also investig.ted how virtual wind fences would modify.the flow patterns, chang.ng.the distance of the fence from the station as well as the porosity.of the fence. For westerly.inflows, when the AWS was downwind of jang Bog. Station, the decrease in wind speed was maximized(-81% for west-northwesterly.. The wind speed reduction was also g.eater as the distance of the fence was closer to jang Bog. Station. With the same distance, the fence with medium porosity.25%–33%) maximized the wind speed *** results sug.est that the location and material of the wind fence should be selected carefully. or AWS data should be interpreted cautiously. for particular prevailing.wind directions.

关键词： jang Bog. Antarctic Research Station CFD model observation environment wind fence porosity

Injury.of corticoreticular pathway.and corticospinal tract caused by.ventriculoperitoneal shunting

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Neural Reg.neration Research 2015年第11期10卷 1874-1875页

作者： Sung.Ho jang Jeong.Py. Seo Department of Phy.ical Medicine and Rehabilitation College of Medicine Yeungnam University

Ventriculoperitoneal shunting.is a commonly.used neurosurg.cal procedure for manag.ment of hy.rocephalus（jang et al.,2015）.Various complications of ventriculoperitoneal shunting.have been reported,including.infection,hemorrhag.,shunt malfunction,shunt displacement and brain swelling.Kwon and jang,2012,2015）.Althoug. ventriculoperitoneal shunting.can cause injury.of adjacent neural tracts,little is known about injury.of the neural tract by.ventriculoperitoneal shunting.Kwon and jang, 2013）.

关键词： CRP CST DTI Fig.re

Comparison of intra peritoneal anti-adhesive poly.accha rides derived from Phellinus mushrooms in a rat peritonitis model

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World Journal of g.stroenterolog. 2005年第6期11卷 810-816页

作者： Jae-Sung.Bae Kwang.Ho jang Hee-Ky.ng.Jin Department of Surg.ry Department of Laboratory.Animal Medicine

AIM: To assess the adhesion- and abscess-reducing.capacities of various concentrations of poly.accharides derived from fung.s, Phellinus g.lvus (Pg. or Phellinus linteus (PL) in a rat peritonitis ***: In 96 SD rats, experimental peritonitis was induced using.the cecal lig.tion and puncture model (CLP).Rats were randomly.assig.ed to 8 g.oups; Ring.r's lactate solution (RL g.oup), hy.luronic acid (HA g.oup), 0.025%,0.25%, and 0.5% poly.accharides from Pg.(Pg..025, 0.25,and 0.5 g.oups), and PL (PL0.025, 0.25, and 0.5 g.oups).Adhesions and abscesses were noted at 7 d after ***-PCR assay.was performed to assess the cecal ***: Adhesion formation was sig.ificantly.reduced in Pg..25, 0.5, PL0.25, 0.5, and HA g.oups (2.5±0.7,2.4±0.7, 3.8±1.0, 3.6±0.8, and 2.7±1.1, P＜0.05). The incidence of abscesses was sig.ificantly.reduced in all treated g.oups compared to RL g.oup (58%, P＜0.05). The urokinase-ty.e plasminog.n activator (uPA) g.ne expression was g.eatly.up-reg.lated by.increasing.the concentration of poly.accharides. The urokinase-ty.e plasminog.n activator receptor (uPAR) and tumor necrosis factor (TNF)-α mRNA were hig.ly.expressed in Pg..25, 0.5, PL0.25, and ***: We concluded that 0.5% poly.accharide derived from Pg.and PL was the optimal concentration in preventing.adhesion and abscess formation and may.act by.modulating.activity.of uPA and TNF-α in a rat peritonitis model.

关键词： Adhesion Abscess Phellinus g.lvus, Phellinus linteus Poly.accharides

Ag.ng.Analy.is Framework of Windows-Based Sy.tems throug. Differential-Analy.is of Sy.tem Snapshots

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Computers, Materials & Continua 2022年第12期73卷 5091-5102页

作者： Eun-Tae jang Sung.Hoon Baek Ki-Woong.Park Sy.Core Lab Sejong UniversitySeoul05006Korea Department of Computer Sy.tem Eng.neering Jungwon UniversityChungcheongbuk-do28024Korea

When aWindows-based sy.tem is used for an exceeding.y.long.time,its performance deg.ades,and the error occurrence rate tends to *** is g.nerally.called sy.tem *** investig.te the reasons for sy.tem ag.ng.various studies have been conducted within the rang. of the operating.sy.tem kernel to the user ***,finding.an accurate reason for sy.tem performance deg.adation remains challeng.ng.research *** this study.sy.tem monitoring.was conducted by.dividing.a sy.tem into‘before software installation,’‘after software installation,’and‘after software removal.’We confirmed that when a software installed in a sy.tem is removed,various sy.tem elements,such as storag. and memory.are not restored to the level prior to the software ***,we established a hy.othesis reg.rding.the performance deg.adation of a computer sy.tem owing.to repeated software installation/removal operations,investig.ted the correlation between sy.tem ag.ng.and repeated software installation/removal operations,and proposed a sy.tem ag.ng.analy.is framework for analy.ing.the reason behind sy.tem *** the proposed sy.tem ag.ng.analy.is framework,we aim to forcibly.ag. a Windows-based sy.tem by.repeating.the software installation/removal operation by.utilizing.the sy.tem forced ag.ng.*** framework identifies the elements affecting.sy.tem performance throug. a differential data analy.is of the sy.tem time-series data extracted by.the sy.tem performance extraction and sy.tem component snapshot ***,the ag.ng.analy.is framework presented in this study.is expected to be effectively.utilized as an index for study.ng.sy.tem ag.ng.

关键词： Sy.tem ag.ng virtual machine sy.tem analy.is

Enhanced thermoelectric properties of NbCoSn half-Heuslers throug. in-situ nanocry.tallization of amorphous precursors during.the consolidation process

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Journal of Materials Science & Technolog. 2023年第34期165卷 39-48页

作者： Chanwon Jung.Ky.seon jang Hail Park Jeong.n jang Hanhwi jang By.ng.hul Kang.Kitae Park Siy.an Zhang.Ruben Bueno Villoro SuDong.Park Ho Jin Ry. y.on Sik Jung.Min-Wook Oh Christina Scheu Seong.Hoon y. Py.ck-Pa Choi Department of Materials Science and Eng.neering Korea Advanced Institute of Science and Technology(KAIST)291 Daehak-roYuseong-guDaejeon 34141Republic of Korea Max-Planck-Institut für Eisenforschung.g.bH Düsseldorf 40237Germany Electrical Materials Research Division Energy Conversion Research CenterKorea Electrotechnology Research Institute(KERI)Changwon 51543Republic of Korea Department of Materials Science and Metallurg.cal Eng.neering Kyungpook National University80 DaehakroDaegu 41566Republic of Korea Department of Nuclear and Quantum Eng.neering Korea Advanced Institute of Science and Technology(KAIST)291 Daehak-roYuseong-guDaejeon 34141Republic of Korea Department of Materials Science and Eng.neering Hanbat National University125 Dongseodae-roYuseong-guDaejeon 34158Republic of Korea

Tailoring.nanostructures is a g.neral approach used to obtain enhanced thermoelectric properties for halfHeusler compounds because the wide areas of g.ain and phase boundaries could be scattering.centers that lower lattice thermal ***,a common fabrication method based on the sintering.of cry.talline precursors crushed from as-cast alloy.ing.ts has limitations in obtaining.a homog.neous microstructure without microsized impurity.phases,owing.to residual elemental seg.eg.tion from *** this study.we used amorphous NbCoSn alloy. as a precursor for the sintered specimen to obtain a homog.neous NbCoSn bulk specimen without microsized impurity.phases and seg.eg.tion,which led to the enhanced Seebeck coefficient due to the hig. purity.of the half-Heusler phase after ***,superplasticity.orig.nating.from amorphous features enabled the powders to be larg.ly.deformed during.the sintering.process,even at a low sintering.temperature(953 K).This resulted in less oxidation at both,the g.ain boundary.and the interior,as the O diffusion pathway.was blocked during.the sintering.*** a result,the NbCoSn0.95Sb0.05 specimen using.an amorphous precursor exhibited an enhanced zT of 0.7,due to the increase in the power factor and a decrease in lattice thermal conductivity.compared to the specimen using.a cry.talline precursor.

关键词： Half-Heusler compounds Amorphous Superplasticity Seg.eg.tion Atom probe tomog.aphy

Development of 3D bicontinuous metal-intermetallic composites throug. subsequent alloy.ng.process after liquid metal dealloy.ng

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Journal of Mag.esium and Alloy. 2023年第11期11卷 4274-4281页

作者： Jee Eun jang Jihy. Seong.Soo-Hy.n Joo Sung.Hy.k Park School of Materials Science and Eng.neering Kyungpook National UniversityDaegu 41566Republic of Korea Department of Materials Science and Eng.neering Dankook UniversityCheonan 31116Republic of Korea

This study.presents a novel process for the fabrication of metal-intermetallic composites with a 3D bicontinuous structure, achieved throug. a combination of liquid metal dealloy.ng.LMD) and subsequent alloy.ng. Initially. porous Ti structures are produced using.the LMD process, followed by.immersion in a molten Mg.3Al(wt%) metal. Due to the hig.er thermody.amic miscibility.of Al with Ti compared to Mg. the concentration of Al in the Ti matrix increases as the immersion time increases. This results in a sequential phase transition within the Ti matrix: α-Ti → Ti_(3)Al → Ti Al. The phase transition considerably.affects the hardness and streng.h of the composite material,with the Mg.Ti_(3)Al-Ti Al composite exhibiting.a maximum hardness nearly.twice as hig. as that of the conventional Mg.Ti composite. This innovative process holds potential for the development of various bicontinuous metal-intermetallic composites.

关键词： Liquid metal dealloy.ng Subsequent alloy.ng Metal–intermetallic composite 3D bicontinuous structure Hardness

Anode-less all-solid-state batteries:recent advances and future outlook

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Materials Futures 2023年第1期2卷 122-131页

作者： Nohjoon Lee Jihoon Oh jang Wook Choi School of Chemical and Biolog.cal Eng.neering Seoul National UniversitySeoul 08826Republic of Korea

While all-solid-state batteries have built g.obal consensus with reg.rd to their impact in safety.and energ.0}density.their anode-less versions have attracted appreciable attention because of the possibility.of further lowering.the cell volume and *** perspective article summarizes recent research trends in anode-less all-solid-state batteries(ALASSBs)based on different ty.es of solid electroly.es and anticipates future directions these batteries may.*** particularly.aim to motivate researchers in the field to challeng. remaining.issues in ALASSBs by.employ.ng.advanced materials and cell desig.s.

关键词： all-solid-state batteries anode-free anode-less interface stability lithium dendrite

Central post-stroke pain due to injury.of the spinothalamic tract in patients with cerebral infarction： a diffusion tensor tractog.aphy.imag.ng.study

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Neural Reg.neration Research 2017年第12期12卷 2021-2024页

作者： Sung.Ho jang Jun Lee Sang.Seok y.o Department of Phy.ical Medicine and Rehabilitation College of Medicine Yeungnam University Namku Daegu Republic of Korea Department of Neurolog. College of Medicine Yeungnam University Namku Daegu Republic of Korea Department of Phy.ical Therapy College of Health Sciences Dankook University Chungnam Republic of Korea

Many.studies using.diffusion tensor tractog.aphy.DTT） have demonstrated that injury.of the spinothalamic tract（STT） is the pathog.netic mechanism of central post-stroke pain（CPSP） in intracerebral hemorrhag.; however, there is no DTT study.reporting.the pathog.netic mechanism of CPSP in cerebral infarction. In this study. we investig.ted injury.of the STT in patients with CPSP following.cerebral infarction, using.DTT. Five patients with CPSP following.cerebral infarction and eig.t ag.-and sex-matched healthy.control subjects were recruited for this study. STT was examined using.DTT. Among.DTT parameters of the affected STT, fractional anisotropy.and tract volume were decreased by.more than two standard deviations in two patients（patients 1 and 2） and three patients（patients 3, 4, and 5）, respectively. compared with those of the control subjects, while mean diffusivity.value was increased by.more than two standard deviations in one patient（patient 2）. Reg.rding.DTT config.ration, all affected STTs passed throug. adjacent part of the infarct and three STTs showed narrowing. These finding. sug.est that injury.of the STT mig.t be a pathog.netic etiolog.0}of CPSP in patients with cerebral infarction.

关键词： nerve reg.neration central post-stroke pain cerebral infarction spinothalamic tract diffusion tensorimag.ng neural reg.neration

Traumatic axonal injury.of the cing.lum in patients with mild traumatic brain injury. a diffusion tensor tractog.aphy.study

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Neural Reg.neration Research 2019年第9期14卷 1556-1561页

作者： Sung.Ho jang Seong.Ho Kim Han Do Lee Department of Phy.ical Medicine and Rehabilitation College of MedicineYeungnam UniversityNamkuDaeguRepublic of Korea Department of Neurosurg.ry College of MedicineYeungnam UniversityNamkuDaeguRepublic of Korea

The cing.lum,connecting.the orbitofrontal cortex to the medial temporal lobe,involves in diverse cog.ition functions including.attention,memory.and *** investig.te the relationship between the cing.lum injury.and cog.itive impairment in patients with chronic mild traumatic brain injury.we evaluated the integ.ity.between the anterior cing.lum and the basal forebrain using.diffusion tensor tractog.aphy.in 73 patients with chronic mild traumatic brain injury.39 males,34 females,ag. 43.29±11.42 y.ars)and 40 healthy.controls(22 males,18 females,ag. 40.11±16.81 y.ars).The patients were divided into three subg.oups based on the integ.ity.between the anterior cing.lum and the basal forebrain on diffusion tensor tractog.aphy.subg.oup A(n=19 patients)– both sides of the anterior cing.lum were intact;subg.oup B(n=36 patients)– either side of the anterior cing.lum was intact;and subg.oup C(18 patients)– both sides of the anterior cing.lum were *** were sig.ificant differences in total Memory.Assessment Scale score between subg.oups A and B and between subg.oups A and *** were no sig.ificant differences in diffusion tensor tractog.aphy.parameters(fractional anisotropy.apparent diffusion coefficient,and fiber volume)between patients and *** finding. sug.est that the integ.ity.between the anterior cing.lum and the basal forebrain,but not diffusion tensor tractog.aphy.parameter,can be used to predict the cog.itive function of patients with chronic mild traumatic brain *** study.was approved by.y.ung.am University.Hospital Institutional Review Board(approval ***-2014-01-425-010)on Aug.st 16,2017.

关键词： mild traumatic brain injury brain trauma diffusion tensor tractog.aphy diffusion tensor imag.ng cog.itive impairment cing.lum memory g.asg.w Coma Scale neural reg.neration