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World Journal of Gastroenterology 2010年第32期16卷 4112-4114页

作者： Hye Jin Yang Young Kwon Cho Yun Ju Jo Yoon Young Jung Seung A Choi suk hoon lee Department of Radiology Eulji General HospitalEulji UniversitySeoul 139-711South Korea Department of Internal Medicine Eulji General HospitalEulji UniversitySeoul 139-711South Korea

Prompt revascularization of the superior mesenteric artery(SMA) thrombotic occlusion can prevent intestinal infarction and decrease necrosis of the bowel ***,we describe two cases who underwent successful endovascular recanalization for acute SMA thrombosis using a primary aspiration thrombectomy because of possible consequent laparotomy for survey of bowel *** two patients had dramatic pain reliefimmediately after the procedure and remained symptomfree during the follow-up period.

关键词： Superior mesenteric artery Thrombosis Aspiration thrombectomy

PGLYRP1 protein as a novel mediator of cellular dialogue in neuroinflammation

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Neural Regeneration Research 2025年第7期20卷 1993-1994页

作者： Anup Bhusal Won-Ha lee Kyoungho suk Department of Pharmacology School of MedicineKyungpook National UniversityDaeguRepublic of Korea BK21 Plus KNU Biomedical Convergence Program Department of Biomedical ScienceSchool of MedicineKyungpook National UniversityDaeguRepublic of Korea School of Life Sciences BK21 plus KNU Creative BioResearch GroupKyungpook National UniversityDaeguRepublic of Korea Brain Science and Engineering Institute Kyungpook National UniversityDaeguRepublic of Korea

Neuroinflammation has been identified as a crucial element in several neurological disorders. Glial cells play a critical role in directing neuroinflammation, both in deleterious and beneficial ways.

关键词： inflammation considerably

Regulation of sleep by astrocytes in the hypothalamic ventrolateral preoptic nucleus

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Neural Regeneration Research 2025年第4期20卷 1098-1100页

作者： Jae-Hong Kim Ruqayya Afridi Il-Sung Jang Maan Gee lee Kyoungho suk Brain Korea 21 four KNU Convergence Educational Program of Biomedical Sciences for Creative Future Talents School of MedicineKyungpook National UniversityDaeguRepublic of Korea Department of Pharmacology School of MedicineKyungpook National UniversityDaeguRepublic of Korea Department of Pharmacology School of DentistryKyungpook National UniversityDaeguRepublic of Korea Brain Science&Engineering Institute Kyungpook National UniversityDaeguRepublic of Korea

Astrocytes are functionally dynamic cells that support neurons in multiple ways throughout an organism’s *** astrocytic regulation of neuronal activity has been increasingly recognized in recent *** are now recognized as playing a more complex role than mere bystanders in the central nervous ***,their role in regulating the sleep neurocircuitry is not well *** this perspective,we highlight the role of astrocytes in sleep modulation,with a particular focus on regulatory mechanisms related to the ventrolateral preoptic nucleus(VLPO)of the *** briefly discuss recent literature reporting the role of VLPO astrocytes in regulating sleep-associated behaviors.

关键词： sleep ventrolateral astrocytes

Experimental investigation of friction coefficient in tube hydroforming

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Transactions of Nonferrous Metals Society of China 2011年第A01期21卷 194-198页

作者： Hyae Kyung YI Hong Sup YIM Gun Yeop lee Sung Mun lee Gi suk CHUNG Young-hoon MOON Engineering Research Center for Net Shape and Die Manufacturing School of Mechanical Engineering Pusan National University Technical Research laboratories POSCO Jeonnam 545-090 Korea

The friction coefficient between tube and die in guide zone of tube hydroforming was obtained. In hydroforming, the tube is expanded by an internal pressure against the tool wall. By pushing the tube through tool, a friction force at the contact surface between the tube and the tool occurs. In guiding zone, the friction coefficients between tube and die can be estimated from the measured axial feeding forces. In expansion zone, the friction coefficients between tube and die can be evaluated from the measured geometries of expanded tubes and FE analysis.

关键词： tube hydroforming friction coefficient lubricant axial force internM pressure

Next High Performance and Low Power Flash Memory Package Structure

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Journal of Computer Science & Technology 2007年第4期22卷 515-520页

作者： Jung-hoon lee ERI Control Instrumentation EngineeringGyeongSang National UniversityJinju660-701Korea

In general, NAND flash memory has advantages in low power consumption, storage capacity, and fast erase/write performance in contrast to NOR flash. But, main drawback of the NAND flash memory is the slow access time for random read operations. Therefore, we proposed the new NAND flash memory package for overcoming this major drawback. We present a high performance and low power NAND flash memory system with a dual cache memory. The proposed NAND flash package consists of two parts, i.e., an NAND flash memory module, and a dual cache module. The new NAND flash memory system can achieve dramatically higher performance and lower power consumption compared with any conventionM NAND-type flash memory module. Our results show that the proposed system can reduce about 78% of write operations into the flash memory cell and about 70% of read operations from the flash memory cell by using only additional 3KB cache space. This value represents high potential to achieve low power consumption and high performance gain.

关键词： flash memory NAND-type NOR-type memory localities buffer or cache memory

SUBic:A Scalable Unsupervised Framework for Discovering High Quality Biclusters

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Journal of Computer Science & Technology 2013年第4期28卷 636-646页

作者： Jooil lee Yanhua Jin Won suk lee Department of Computer Science Yonsei University

A biclustering algorithm extends conventional clustering techniques to extract all of the meaningful subgroups of genes and conditions in the expression matrix of a microarray dataset. However, such algorithms are very sensitive to input parameters and show poor scalability. This paper proposes a scalable unsupervised biclustering framework, SUBic, to find high quality constant-row biclusters in an expression matrix effectively. A one-dimensional clustering algorithm is proposed to partition the attributes, that is, columns of an expression matrix into disjoint groups based on the similarity of expression values. These groups form a set of short transactions and are used to discover a set of frequent itemsets each of which corresponds to a bicluster. However, a bicluster may include any attribute whose expression value is not similar enough to others, so a bicluster refinement is used to enhance the quality of a bicluster by removing those attributes based on its distribution of expression values. The performance of the proposed method is comparatively analyzed through a series of experiments on synthetic and real datasets.

关键词： biclustering clustering expression matrix frequent itemset sub-matrix

Nasal cavity fungus ball discovered accidentally:A case report

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World Journal of Clinical Cases 2025年第5期13卷 44-48页

作者： Dae-Neung lee Dong hoon lee Sang Chul Lim Department of Otolaryngology-Head and Neck Surgery Chonnam National University Medical SchoolChonnam National University Hwasun HospitalHwasun 58128South Korea Department of Otolaryngology-Head and Neck Surgery Chonnam National University Medical SchoolHwasun HospitalChonnam National University Hwasun HospitalHwasun 58128South Korea Department of Otolaryngology-Head and Neck Surgery Chonnam National University Medical SchoolKwangju 501190South Korea

BACKGROUND Fungal balls within the nasal cavity are an exceedingly rare clinical entity,typically presenting with nonspecific symptoms or being identified *** SUMMARY This report presents an incidental discovery of a fungal ball in the nasal cavity during routine imaging,with no associated clinical *** This case underscores the importance of considering the possibility of asympto-matic presentations of nasal fungal balls,which may be detected incidentally during imaging evaluations.

关键词： Fungi Mycoses Fungus ball Nasal cavity Nasal surgical procedures Case report

Study on wear behavior of plasma electrolytic oxidation coatings on aluminum alloy

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Rare Metals 2006年第z2期25卷 141-145页

作者： KANG suk-Bong lee Jung-Moo Department of Materials Engineering Korean Institute of Machinery & Materials Gyeongnam 641831 Korea

Thick and hard ceramic coatings were fabricated on A356 aluminum alloy by using plasma electrolytic oxidation(PEO) technique. The microstructure and phase composition of the PEO coatings were examined by using SEM and XRD method. It is found that the PEO coatings are mainly composed of crystalline α-Al2O3 and mullite. The dry sliding wear test of PEO coatings were carried out on a ring-on-ring wear machine. Results shows that there is hardly no wear loss of polished PEO coatings while the wear rate of uncoated aluminum alloy is 4.3×10-5 mm3·(N·m)-1 at a speed of 0.52 m·s-1 and a load of 40 N.

关键词： aluminum alloy plasma electrolytic oxidation ceramic coating wear

Optimal Cyber Attack Strategy Using Reinforcement Learning Based onCommon Vulnerability Scoring System

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Computer Modeling in Engineering & Sciences 2024年第11期141卷 1551-1574页

作者： Bum-Sok Kim Hye-Won suk Yong-hoon Choi Dae-Sung Moon Min-suk Kim Department of Electronic Information System Engineering Sangmyung UniversityCheonan31066Republic of Korea Department of Human Intelligence&Robot Engineering Sangmyung UniversityCheonan31066Republic of Korea Intelligent Convergence Research Laboratory Electronics and Telecommunications Research InstituteDaejeon34129Republic of Korea

Currently,cybersecurity threats such as data breaches and phishing have been on the rise due to the many differentattack strategies of cyber attackers,significantly increasing risks to individuals and *** technologies such as intrusion detection have been developed to respond to these cyber ***,advanced integrated cybersecurity that incorporates Artificial Intelligence has been the *** this paper,wepropose a response strategy using a reinforcement-learning-based cyber-attack-defense simulation tool to addresscontinuously evolving cyber ***,we have implemented an effective reinforcement-learning-basedcyber-attack scenario using Cyber Battle Simulation,which is a cyber-attack-defense *** scenarioinvolves important security components such as node value,cost,firewalls,and ***,we applieda new vulnerability assessment method based on the Common Vulnerability Scoring *** approach candesign an optimal attack strategy by considering the importance of attack goals,which helps in developing moreeffective response *** attack strategies are evaluated by comparing their performance using a variety ofReinforcement Learning *** experimental results show that RL models demonstrate improved learningperformance with the proposed attack strategy compared to the original *** particular,the success rateof the Advantage Actor-Critic-based attack strategy improved by 5.04 percentage points,reaching 10.17%,whichrepresents an impressive 98.24%increase over the original ***,the proposed method canenhance security and risk management capabilities in cyber environments,improving the efficiency of securitymanagement and significantly contributing to the development of security systems.

关键词： Reinforcement learning common vulnerability scoring system cyber attack cyber battle simulation

The association between vitamin D levels and burn factors in different burn types

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Burns & Trauma 2020年第1期8卷 285-292页

作者： Yoon Soo Cho Cheong hoon Seo So Young Joo suk hoon Ohn Department of Rehabilitation Medicine Burn CenterHangang Sacred Heart Hospital94-200 Yeongdeungpo-dongYeongdeungpo-guSeoul 07247Republic of Korea Department of Physical Medicine and Rehabilitation Hallym University Sacred Heart Hospital22 Gwanpyeong-ro 170 Beon-gil Dongan-gu Anyang Gyeonggi-do 14068Republic of Korea

Background:Patients with burns present with different clinical features depending on the types of burn injury and burn patients with lower levels of vitamin D have worse prognoses and more *** study aims to investigate the association between vitamin D levels and burn factors according to each burn type in relation to early intensive rehabilitation therapy initiated for inpatients with ***:In this retrospective study,we enrolled 757 of 1716 inpatients who underwent rehabilitative therapy between May 2013 and April *** types were divided into flame burn,electrical burn and other burns,including scalding,contact and chemical ***,burned body surface area(BSA),wound healing time(WHT),length of hospital stay(LOS)and body mass index were analysed between vitamin D deficient and non-deficient patient groups using Student’s ttests,or Mann-Whitney U test and among three burn types using one-way analysis of variance(ANOVA)or Kruskal-Wallis one-way *** relationship between vitamin D levels and burn factors was evaluated using Pearson’s or Spearman’s correlation coefficient tests,and multiple linear regression analysis in different burn ***:In total,88.9%patients were vitamin D deficient,and these patients had a larger burned BSA(p=0.015)and longer WHT and LOS(all p<0.001)than non-deficient *** BSA,WHT and vitamin D levels showed significant differences in their mean values according to three burn types(all p<0.001).WHT was a communal factor significantly associated with vitamin D levels in all three burn types(p<0.05).The WHT cut-off points to predict vitamin D deficiency were 55 days for flame burn(p<0.001)and 62.5 days for electrical burn(p=0.001).Conclusions:WHTacross all three burn typeswas a common factor associated with vitamin D levels for inpatients with burns who had undergone rehabilitative *** burn patients with vitamin D deficiency,even those with a low burned BSA percentage,showed prol

关键词： Burn factors Vitamin D deficiency Burn type Wound healing time Rehabilitation