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Solution-processed highly adhesive graphene coatings for corrosion inhibition of metals

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Nano Research 2019年第1期12卷 19-23页

作者： Gi-Cheol Son Deuk-Kyu Hwang Jaewon jang Sang-Soo Chee Kyusang cho Jae-Min Myoung Moon-ho Ham School of Materials Science and Engineering Gwangju Institute of Science and Technology(GIST)123 Cheomdangwagi-roBuk-guGwangju 61005Republic of Korea Research Institute for Solar and Sustainable Energies Gwangju Institute of Science and Technology(GIST)123 Cheomdangwagi-roBuk-gut Gwangju 61005Republic cf Korea Department of Materials Science and Engineering Yonsei University50 Yonsei-roSeodaemun-guSeoul 03722Republic of Korea

The corrosion of metals can be induced by different environmental and operational conditions,and protecting metals from corrosion is a serious concern in many *** developme nt of new materials and/or tech no logies to improve the efficie ncy of anti-corrosi on coati ngs has attracted ren ewed in *** this study,we develop a protective coati ng composed of a bilayer structure of reduced graphe ne oxide(RGO)/graphene oxide(GO)applied to Cu plates by spray-coating and subsequent *** annealing of the GO/Cu plates at 120℃produces a bilayer structure of RGO/GO by the partial reducti on of the spray-coated GO *** in duces superior corrosion resista nee and adhesi on strength compared to those of GO/Cu and RGO/Cu plates because of the hydrophobic n ature of the RGO surface exposed to the surroundings and the formation of Cu-O bonds with the O-based functional groups of *** approach provides a viable and scalable route for using graphene coatings to protect metal surfaces from corrosion.

关键词： graphene metal surface coating corrosion solution process

Neuroimaging characterization of recovery of impaired consciousness in patients with disorders of consciousness

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Neural Regeneration Research 2019年第7期14卷 1202-1207页

作者： Sung ho jang Young Hyeon Kwon Department of Physical Medicine and Rehabilitation College of MedicineYeungnam University

Elucidation of critical brain areas or structures that are responsible for recovery of impaired consciousness in patients with disorders of consciousness is important because it can provide information that is useful when developing therapeutic strategies for neurorehabilitation or neurointervention in patients with disorders of *** this review,studies that have demonstrated brain changes during recovery of impaired consciousness were *** studies used positron emission tomography,electroencephalography/transcranial magnetic stimulation,diffusion tensor tractography,and diffusion tensor tractography/*** majority of these studies reported on the importance of supratentorial areas or structures in the recovery of impaired *** important brain areas or structures that were identified were the prefrontal cortex,basal forebrain,anterior cingulate cortex,and parietal *** results have a clinically important implication that these brain areas or structures can be target areas for neurorehabilitation or neurointervention in patients with disorders of ***,most of studies were case reports;therefore,further original studies involving larger numbers of patients with disorders of consciousness are *** addition,more detailed information on the brain areas or structures that are relevant to the recovery of impaired consciousness is needed.

关键词： consciousness vegetative state minimally conscious state ascending reticular activating system diffusion tensor imaging neuroimaging neural regeneration review

Traumatic axonal injury of the cingulum in patients with mild traumatic brain injury: a diffusion tensor tractography study

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Neural Regeneration Research 2019年第9期14卷 1556-1561页

作者： Sung ho jang Seong ho Kim Han Do Lee Department of Physical Medicine and Rehabilitation College of MedicineYeungnam UniversityNamkuDaeguRepublic of Korea Department of Neurosurgery College of MedicineYeungnam UniversityNamkuDaeguRepublic of Korea

The cingulum,connecting the orbitofrontal cortex to the medial temporal lobe,involves in diverse cognition functions including attention,memory,and *** investigate the relationship between the cingulum injury and cognitive impairment in patients with chronic mild traumatic brain injury,we evaluated the integrity between the anterior cingulum and the basal forebrain using diffusion tensor tractography in 73 patients with chronic mild traumatic brain injury(39 males,34 females,age 43.29±11.42 years)and 40 healthy controls(22 males,18 females,age 40.11±16.81 years).The patients were divided into three subgroups based on the integrity between the anterior cingulum and the basal forebrain on diffusion tensor tractography:subgroup A(n=19 patients)– both sides of the anterior cingulum were intact;subgroup B(n=36 patients)– either side of the anterior cingulum was intact;and subgroup C(18 patients)– both sides of the anterior cingulum were *** were significant differences in total Memory Assessment Scale score between subgroups A and B and between subgroups A and *** were no significant differences in diffusion tensor tractography parameters(fractional anisotropy,apparent diffusion coefficient,and fiber volume)between patients and *** findings suggest that the integrity between the anterior cingulum and the basal forebrain,but not diffusion tensor tractography parameter,can be used to predict the cognitive function of patients with chronic mild traumatic brain *** study was approved by Yeungnam University hospital Institutional Review Board(approval ***-2014-01-425-010)on August 16,2017.

关键词： mild traumatic brain injury brain trauma diffusion tensor tractography diffusion tensor imaging cognitive impairment cingulum memory Glasgow Coma Scale neural regeneration

Diffusion tensor tractography characteristics of axonal injury in concussion/mild traumatic brain injury

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Neural Regeneration Research 2022年第5期17卷 978-982页

作者： Sung ho jang You Sung Seo Department of Physical Medicine and Rehabilitation College of MedicineYeungnam UniversityDaeguRepublic of Korea

The main advantage of diffusion tensor tractography is that it allows the entire neural tract to be *** addition,configurational analysis of reconstructed neural tracts can indicate abnormalities such as tearing,narrowing,or discontinuations,which have been used to identify axonal injury of neural tracts in concussion *** review focuses on the characteristic features of axonal injury in concussion or mild traumatic brain injury(m TBI)patients through the use of diffusion tensor *** injury in concussion(m TBI)patients is characterized by their occurrence in long neural tracts and multiple injuries,and these characteristics are common in patients with diffuse axonal injury and in concussion(m TBI)patients with axonal ***,the discontinuation of the corticospinal tract is mostly observed in diffuse axonal injury,and partial tearing and narrowing in the subcortical white matter are frequently observed in concussion(m TBI)patients with axonal *** difference appears to be attributed to the observation that axonal injury in concussion(m TBI)patients is the result of weaker forces than those producing diffuse axonal *** addition,regarding the fornix,in diffuse axonal injury,discontinuation of the fornical crus has been frequently reported,but in concussion(m TBI)patients,many collateral branches form in the fornix in addition to these findings in many case *** is presumed that the impact on the brain in TBI is relatively weaker than that in diffuse axonal injury,and that the formation of collateral branches occurs during the fornix recovery *** the occurrence of axonal injury in multiple areas of the brain is an important feature of diffuse axonal injury,case studies in concussion(m TBI)have shown that axonal injury occurs in multiple neural *** axonal injury lesions in m TBI patients may persist for approximately 10 years after injury onset,the characteristics of axonal injury in co

关键词： axonal injury brain injury concussion diffusion tensor imaging diffusion tensor tractography mild traumatic brain injury neural tract

Recovery of an injured ascending reticular activating system with recovery from a minimally conscious state to normal consciousness in a stroke patient: a diffusion tensor tractography study

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Neural Regeneration Research 2020年第9期15卷 1767-1768页

作者： Sung ho jang Han Do Lee Department of Physical Medicine and Rehabilitation College of MedicineYeungnam UniversityDaeguRepublic of Korea Department of Physical Therapy College of Natural ScienceUlsan College UniversityUlsanRepublic of Korea

Consciousnessiscontrolledbytheascendingreticularactivating system (ARAS)(Teasdale and Jennett, 1974;jang and Lee, 2015;jang et al., 2016a). Scientific medical strategies for recovery in patients with impaired consciou... 详细信息

关键词： impaired system consciousness

Recovery of an injured corticospinal tract by subcortical peri-lesional reorganization in a patient with intracerebral hemorrhage

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Neural Regeneration Research 2016年第7期11卷 1191-1192页

作者： Sung ho jang Woo Hyuk jang Department of Physical Medicine and Rehabilitation College of MedicineYeungnam UniversityDaemyungdong

The corticospinal tract （CST） is a neural tract responsible for motor function in the human brain. It is mainly related to hand movements （Iang, 2014）. Therefore, recovery of an injured CST contributes to good recovery in stroke patients and a thorough knowledge of the recovery mechanism regarding an injured CST is required for successful brain rehabilitation.

关键词： reorganization subcortical intracerebral injured radiata cortex rehabilitation ganglia corona ventricle

Multi-Generator Discriminator Network Using Texture-Edge Information

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Computers, Materials & Continua 2023年第5期75卷 3537-3551页

作者： Kyeongseok jang Seongsoo cho Kwang Chul Son Department of Plasma Bio Display Kwangwoon University20Gwangun-roNowon-guSeoul01897Korea School of Software Soongsil University369Sangdo-roDongjak-guSeoul06978Korea Department of Information Contents Kwangwoon University20Gwangun-roNowon-guSeoul01897Korea

In the proposed paper,a parallel structure type Generative Adversarial Network(GAN)using edge and texture information is *** the existing GAN-based model,many learning iterations had to be given to obtaining an output that was somewhat close to the original data,and noise and distortion occurred in the output image even when learning was *** solve this problem,the proposed model consists of two generators and three discriminators to propose a network in the form of a parallel *** the network,each edge information and texture information were received as inputs,learning was performed,and each character was combined and outputted through the Combine *** this,edge information and distortion of the output image were improved even with fewer iterations than DCGAN,which is the existing GAN-based *** a result of learning on the network of the proposed model,a clear image with improved contour and distortion of objects in the image was output from about 50,000 iterations.

关键词： Deep learning convolution neural network generative adversarial network edge information texture information

Effects of heavy rainfall on the composition of airborne bacterial communities

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Frontiers of Environmental Science & Engineering 2018年第2期12卷 117-126页

作者： Gwang Il jang Chung Yeon Hwang Byung Cheol cho Microbial Oceanography Laboratory School of Earth and Environmental Sciences and Research Institute of Oceanography Seoul National University Seoul 08826 Republic of Korea Division of Polar Life Sciences Korea Polar Research Institute Incheon 21990 Republic of Korea

Wet deposition scavenges particles and particle-associated bacteria from the air column, but the impact of raindrops on various surfaces on Earth causes emission of surface-associated bacteria into the air column. Thus, after rainfall, these two mechanisms are expected to cause changes in airborne bacterial community composition （BCC）. In this study, aerosol samples were collected at a suburban site in Seoul, Korea before and after three heavy rainfall events in April, May, and July 2011. BCC was investigated by pyrosequencing the 16S rRNA gene in aerosol samples. Interestingly, the relative abundance of non-spore forming Actinobacteria operational taxonomic units （OTUs） was always higher in post-rain aerosol samples. In particular, the absolute and relative abundances of airborne Propionibacteriaceae always increased after rainfall, whereas those of airborne Firmicutes, including Carnobacteriaceae and Clostridiales, consistently decreased. Marine bacterial sequences, which were temporally important in aerosol samples, also decreased after rainfall events. Further, increases in pathogen-like sequences were often observed in post-rain air samples. Rainfall events seemed to affect airborne BCCs by the combined action of the two mechanisms, with potentially adverse effects on human and plant health.

关键词： Aerosol BacteriaCommunity composition PyrosequencingRain

Improvement of ataxia in a patient with cerebellar infarction by recovery of injured cortico-ponto-cerebellar tract and dentato-rubro-thalamic tract: a diffusion tensor tractography study

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Neural Regeneration Research 2019年第8期14卷 1470-1472页

作者： Sung ho jang Hyeok Gyu Kwon Department of Physical Medicine and Rehabilitation College of Medicine Yeungnam University Daegu Republic of Korea Department of Physical Therapy College of Health Science Eulji University Gyeonggi Republic of Korea

Coordinated movement is generated by communication between the cerebrum and cerebellum via the cerebellar peduncles (CPs). The CPs are classified into three types (superior, middle, and inferior), and each includes a variety of neural tracts. Among those tracts, the cortico-ponto-cerebellar tract (CPCT), a middle CP, is involved in motor planning and initiation of movement, while the dentato-rubro-thalamic tract (DRTT), a superior CP, is involved in motor coordination, movement timing, verbal fluency, and working memory (Kase et al., 1993.

关键词： Improvement of ataxia injured cortico-ponto-cerebellar tractography study