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Eu^2＋-doped Sr5(PO4)3Br blue-emitting phosphor with high color purity for near-UV-pumped white light-emitting diodes

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Journal of Rare Earths 2018年第9期36卷 917-923页

作者： Zhiwen Gao Shihua Liu Pengfei Sun Jung hyun jeong Ruijin Yu Bin Deng College of Chemistry and Pharmacy Northwest A&F University Yangling 712100 China College of Chemical Biological and Environmental Engineering Xiangnan University Chenzhou 423043 China Department of Physics Pukyong National University Busan 608-737 Republic of Korea

Eu2＋-doped bromophosphateapatite Sr5（PO4）3 Br phosphors were synthesized by the conventional hightemperature solid-state *** crystal structure and luminescence properties of the phosphors,as well as their thermal stability and CIE chromaticity coordinates were systematically *** spectra of Sr5（PO4）3 Br：Eu2＋ exhibit a single blue emission at 450 nm under the excitation of 345 nm,which is ascribed to the 4 f-5 d transition of Eu2＋.The phosphor shows very good thermal stability; The CIE color coordinates are very close to those of BaMgAl10O17：Eu2＋（BAM）.All the properties indicate that the blue-emitting Sr5（PO4）3 Br：Eu2＋ phosphor has potential application in white LEDs.

关键词： Bromophosphate Luminescence EU^2 + ion Rare earths

Semantics-oriented approach for information interoperability and governance:towards user-centric enterprise architecture management

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Journal of Zhejiang University-Science C(Computers and Electronics) 2010年第4期11卷 227-240页

作者： Imran GHANI Choon Yeul LEE Sung hyun JUHN Seung Ryul jeong School of Business IT Kookmin University

Enterprise architecture (EA) efforts focus on business, technology, data, and application architecture, and their integration. However, less attention has been given to one of the most critical EA elements, i.e., users (EA audiences). As a result, existing EA management systems (EAMS) have become old, large, content-centric document-repositories that are unable to provide meaningful information of use to the enterprise users and aligned with their needs and functional scope. We argue that a semantic technology based mechanism focusing on enterprise information and user-centricity has the potential to solve this problem. In this context, we present a novel ontology-based strategy named the user-centric semantics-oriented EA (U-SEA) model. Based on this model, we have developed a user-centric semantics-oriented enterprise architecture management (U-SEAM) system. Our approach is generic enough to be used in a wide variety of user-centric EAM applications. The results obtained show computational feasibility to integrate and govern enterprise information and to reduce complexity with respect to interoperability between enterprise information and users.

关键词： Enterprise architecture management system (EAMS) Ontology Recommender system User-centric Semantic Web Framework

Plasma Triggered Grain Coalescence for Self-Assembly of 3D Nanostructures

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Nano-Micro Letters 2017年第3期9卷 33-42页

作者： Chunhui Dai Daeha Joung jeong-hyun Cho Department of Electrical and Computer Engineering University of MinnesotaMN 55455USA

Grain coalescence has been applied in many areas of nanofabrication technology, including modification of thinfilm properties, nanowelding, and self-assembly of nanostructures. However, very few systematic studies of selfassembly using the grain coalescence, especially for threedimensional(3D) nanostructures, exist at present. Here, we investigate the mechanism of plasma triggered grain coalescence to achieve the precise control of nanoscale phase and morphology of the grain coalescence induced by exothermic energy. Exothermic energy is generated through etching a silicon substrate via application of plasma. By tuning the plasma power and the flow rates of reactive gases, different etching rates and profiles can be achieved, resulting in various morphologies of grain coalescence. Balancing the isotropic/anisotropic substrate etching profile and the etching rate makes it possible to simultaneously release 2D nanostructures from the substrate and induce enough surface tension force,generated by grain coalescence, to form 3D *** morphologies of 3D nanostructures have been obtained by the grain coalescence, and a strategy to achieve self-assembly, resulting in desired 3D nanostructures, has been proposed and demonstrated.

关键词： 3D nanostructures Grain coalescence Etching profile Self-assembly

Role of two-dimensional shear wave elastography in chronic liver diseases: A narrative review

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World Journal of Gastroenterology 2018年第34期24卷 3849-3860页

作者： Jae Yoon jeong Young Seo Cho Joo hyun Sohn Department of Internal Medicine Hanyang University Guri Hospital Hanyang University College of Medicine Department of Radiology Hanyang University Guri Hospital Hanyang University College of Medicine

Liver biopsy is the gold standard for evaluating the degree of liver fibrosis in patients with chronic liver disease. However, due to the many limitations of liver biopsy, there has been much interest in the use of noninvasive techniques for this purpose. Among these techniques real-time two-dimensional shear wave elastography(2D-SWE) has the advantage of measuring tissue elasticity with the guidance of B-mode images. Recently, many studies have been conducted on the application of 2D-SWE in patients with various liver diseases, and their validity has been confirmed. Here, we briefly discuss the role of 2D-SWE in patients with chronic liver diseases, particularly aspects of the examination techniques and clinical applications.

关键词： Shear wave elastography Liver disease Liver fibrosis Portal hypertension Hepatocelluar carcinoma

Pharmacokinetic comparison with different assays for simultaneous determination of cis-,trans-cefprozil diastereomers in human plasma

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Journal of Pharmaceutical Analysis 2021年第3期11卷 351-363页

作者： Seung-hyun jeong Ji-Hun Jang Hea-Young Cho Yong-Bok Lee College of Pharmacy Chonnam National University77 Yongbong-roBuk-guGwangju61186Republic of Korea College of Pharmacy CHA University335 Pangyo-roBundang-guSeongnam-siGyeonggi-Do13488Republic of Korea

The purpose of this study was to compare pharmacokinetic(PK)parameters obtained using two newly developed assays,HPLC-UV and UPLC-ESI-MS/*** of assay and results obtained therefrom are very important in PK studies and can have a major impact on the PK-based clinical dose and usage *** this study,we developed two new methods that are most commonly used in biosample analysis and focused on PK parameters obtained from *** HPLC-UV equipped with a Luna-C8 column using UV detector,cefprozil diastereomers were separated using water containing 2%(V/V)acetic acid and acetonitrile as a mobile *** UPLC-ESI-MS/MS equipped with a HALO-C18 column,cefprozil diastereomers were separated using 0.5%(V/V)aqueous formic acid containing 5 mM ammoniumformate buffer and methanol as a mobile *** showed high resolution,sensitivity,and selectivity without interference by plasma *** intra-and inter-day precisions(CV,%)were within 8.88%for HPLC-UV and UPLC-ESI-MS/*** of both methods was 95.67%-107.50%.These two analytical methods satisfied the criteria of international guidance and could be successfully applied to PK *** of PK parameters between two assays confirmed that there is a difference in the predicted minimum plasma concentrations at steady state,which may affect clinical dose and usage ***,we confirmed possible correlation between PK parameters and various biochemical parameters after oral administration of 1000 mg cefprozil to humans.

关键词： Cefprozil diastereomers Comparison HPLC-UV UPLC-ESI-MS/MS Pharmacokinetic parameter Biochemical parameters

Abnormal Behavior Detection Using Deep-Learning-Based Video Data Structuring

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Intelligent Automation & Soft Computing 2023年第8期37卷 2371-2386页

作者： Min-jeong Kim Byeong-Uk Jeon hyun Yoo Kyungyong Chung Department of Computer Science Kyonggi UniversitySuwon-si16227Gyeonggi-doKorea Contents Convergence Software Research Institute Kyonggi UniversitySuwon-si16227Gyeonggi-doKorea Division of AI Computer Science and Engineering Kyonggi UniversitySuwon-si16227Gyeonggi-doKorea

With the increasing number of digital devices generating a vast amount of video data,the recognition of abnormal image patterns has become more ***,it is necessary to develop a method that achieves this task using object and behavior information within video *** methods for detecting abnormal behaviors only focus on simple motions,therefore they cannot determine the overall behavior occurring throughout a *** this study,an abnormal behavior detection method that uses deep learning(DL)-based video-data structuring is *** and motions are first extracted from continuous images by combining existing DL-based image analysis *** weight of the continuous data pattern is then analyzed through data structuring to classify the overall *** performance of the proposed method was evaluated using varying parameter settings,such as the size of the action clip and interval between action *** model achieved an accuracy of 0.9817,indicating excellent ***,we conclude that the proposed data structuring method is useful in detecting and classifying abnormal behaviors.

关键词： Deep learning object detection abnormal behavior recognition classification data structuring

Symptomatic accessory soleus muscle:A cause for exertional compartment syndrome in a young soldier:A case report

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World Journal of Clinical Cases 2022年第35期10卷 13022-13027页

作者： Inha Woo Chul hyun Park Hongfei Yan jeong Jin Park Department of Orthopaedic Surgery Yeungnam University HospitalDaegu 42492South Korea Department of Orthopaedics Yeungnam University HospitalDaegu 42415South Korea

BACKGROUND Accessory soleus muscle(ASM)is a rare congenital variation that is almost asymptomatic,but several papers have recently described symptomatic *** clinical features of this condition are similar to tarsal tunnel syndrome(TTS)and include pain and numbness around the medial side of the *** commonly originates from the fibula or soleus muscle and inserts into the Achilles tendon or ***,it is identified as posteromedial swelling and definitely diagnosed by magnetic resonance *** most cases,treatment is observation,but surgical excision can be considered if symptoms are *** SUMMARY A 23-year-old male Korean soldier presented with complaints of bilateral foot and ankle pain and a swelling medial to the Achilles tendon that was more pronounced on the right *** first occurred after playing soccer 10 mo before this presentation,worsened after physical exertion,and were relieved by *** had no medical history,and no one in his family had the *** results were *** tests were performed to exclude common diseases such as tumors or ***,MRI revealed a bulky accessory soleus muscle in both feet,though the patient complained of more severe pain on the right side during physical ***,surgical resection was *** surgery,a large accessory soleus muscle was noted anterior to the Achilles tendon with distinctive insertion from a normal soleus *** 12 mo after surgery,there was no pain,numbness,or swelling of the right foot or ankle,no evidence of recurrence,and the patient could do all sports *** Accessory soleus muscle should be added to the list of differential diagnosis if a patient has pain,sole numbness or swelling of the posteromedial ankle.

关键词： Accessory soleus muscle Posteromedial ankle pain Exertional compartment syndrome Tarsal tunnel syndrome Sole numbness Case report

Reciprocal inhibition of expression between RAV1 and BES1 modulates plant growth and development in Arabidopsis

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Journal of Integrative Plant Biology 2023年第5期65卷 1226-1240页

作者： Dami Yang hyun-young Shin hyun Kyung Kang Yun Shang So Young Park Dong-Hoon jeong Kyoung Hee Nam Department of Biological Sciences Sookmyung Women's UniversitySeoul 04310Republic of Korea Research Institute for Women's HealthSookmyung Women's UniversitySeoul 04310Republic of Korea Department of Life Science and Multidisciplinary Genome Institute Hallym UniversityChuncheon 24252Republic of Korea Present Address:Peking University Institute of Advanced Agricultural ScienceWeifang 261325China

RAV1(Related to ABI3/VP1)is a plant-specific B3 and AP2 domain-containing transcription factor that acts as a negative regulator of growth in many plant *** expression of RAV1 is downregulated by brassinosteroids(BRs);large-scale transcriptome analyses have shown that the expression of RAV1 was previously targeted by BRI1-EMS-SUPPRESOR1(BES1)and BRASSINAZOLE-RESISTANT1(BZR1),which are critical transcription factors for the BR-signaling *** RAV1-overexpressing transgenic plants,we showed that RAV1 overexpression reduced the BR signaling capacity,resulting in the downregulation of BR biosynthetic genes and BES1 ***,we demonstrated that BES1,not BZR1,is directly bound to the RAV1 promoter and repressed RAV1 expression,and vice versa;RAV1 is also bound to the BES1 promoter and repressed BES1 *** mutual inhibition was specific to RAV1 and BES1 because RAV1 exhibited binding activity to the BZR1 promoter but did not repress BZR1 *** observed that constitutively activated BR signaling phenotypes in bes1-D were attenuated by the repression of endogenous BES1 expression in transgenic bes1-D plants overexpressing ***-sequencing analysis of RAV1-overexpressing transgenic plants and bes1-D mutant plants revealed differentially expressed genes by RAV1 and BES1 and genes that were oppositely co-regulated by RAV1 and ***1 and BES1 regulated different transcriptomes but co-regulated a specific set of genes responsible for the balance between growth and *** results suggested that the mutual inhibitory transcriptional activities of RAV1 and BES1 provide fine regulatory mechanisms for plant growth and development.

关键词： BES1 growth modulation RAV1 transcriptional regulation

Ovalicin attenuates atopic dermatitis symptoms by inhibiting IL-31 signaling and intracellular calcium influx

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The Journal of Biomedical Research 2021年第6期35卷 448-458页

作者： Sung-hyun Hwang Yeseul Yang Yeji jeong Yongbaek Kim Laboratory of Clinical Pathology College of Veterinary MedicineSeoul National UniversitySeoul 08826Republic of Korea The Brain Korea 21 Future Veterinary Medicine Leading Education and Research Center College of Veterinary MedicineSeoul National UniversitySeoul 08826Republic of Korea Research Institute for Veterinary Science College of Veterinary MedicineSeoul National UniversitySeoul 08826Republic of Korea.

Atopic dermatitis(AD)is a common skin disorder difficult to be treated with *** study investigated the potential of ovalicin extracted from Cordyceps militaris for the treatment of AD using in vitro and in vivo *** found that,in canine macrophage cell line DH82,lipopolysaccharide(LPS)upregulated the expression of genes associated with inflammation and pruritic responses through activating calcium and interleukin-31(IL-31)signaling,and the upregulation could be suppressed by ovalicin,with an effect significantly stronger than *** also reduced the expression of IL-31 downstream genes,including JAK2(Janus kinase 2),TRPV1(transient receptor potential vanilloid receptor-1),and HRH2(histamine receptor H2).Ovalicin significantly alleviated the allergic symptoms in the AD mouse ***,the number of macrophages and mast cells infiltrated in the dermis was significantly reduced by ovalicin *** the skin tissue of AD mice,reduction of IL-31 receptor was observed in the ovalicin treated group compared to the group without ovalicin *** our knowledge,this is the first study to elucidate the anti-atopic mechanism of ovalicin,which could be an alternative to steroidal drugs commonly used for AD treatment.

关键词： ovalicin IL-31 pruritus inflammation calcium atopic dermatitis