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| 1 | Mechanical properties and flame retardancy of surface modified magnesium oxysulfate(5Mg(OH)_(2)·MgSO_(4)·3H_(2)O)whisker for polypropylene composites显示文摘Magnesium oxysulfate(MOS)whisker is considered as a promising inorganic material recently attracting a great attention for being used as a reinforcing filler for polymer composites due to high aspect ratio and extremely-low bulk density.In this study,the MOS was treated with 3-methacryloyloxypropyl-trimethoxy silane(MPS)via sol-gel condensation reactions,which successfully allowed melt mixing with polypropylene(PP)up to 30 wt%of MOS.The tensile strength at yield and modulus of the MOS/PP composites were substantially increased by 50.8%and 362%,respectively,when compared with the pristine PP.As a novel finding,the flame retardancy of MOS was proved by identifying water evolution at elevated temperatures giving out 9 wt%of water in 250-320℃and 14 wt%in 350-420℃in two steps.This work demonstrated that the MOS could be an excellent filler for PP not only increasing the mechanical properties in a great extent but also imposing flame retarding capability. | Eui-Su Kim Ye Chan Kim Jungwoo Park Youngjun Kim Sung-Hoon Kim Kwang Jin Kim Jonghwan Suhr Youngkwan Lee Seong Hoon Lee Dae-Sik Kim Soo-Hyun Kim Ju-Ho Yun In-Kyung Park Jae-Do Nam | 2018 | Journal of Materiomics2018，4，2： | 9 |
| 2 | Orthogonal-Gradient Measurement Matrix Construction Algorithm显示文摘An orthogonal-gradient measurement matrix construction algorithm is proposed for reducing the maximum and average mutual-coherence of sensing matrix. It shrinks Gram matrix based on equiangular tight frame theory. An orthogonal-gradient factor matrix is deduced. It obtains an optimized measurement matrix with the orthogonal-gradient factor matrix. The results of experiments show that the proposed algorithm effectively reduces the maximum and average mutual-coherence of sensing matrix. This leads to a better reconstruction performance for signals with different sparsities compared with Gaussian matrix, Elad's, Xu's, Vahid's and Li's methods. | TIAN Shujuan FAN Xiaoping LI Zhetao PAN Tian CHOI Youngjune SEKIYA Hiroo | 2016 | Chinese Journal of Electronics2016，25，1： | 5 |
| 3 | Block-Based Projection Matrix Design for Compressed Sensing显示文摘The objective of optimizing a projection matrix is to decrease the mutual coherence between a projection matrix and a basis matrix. In this paper, a novel block-based method is proposed to design a projection matrix in compressed sensing. Here, the projection matrix is divided into two blocks. The relationship between the two blocks was obtained by reasoning and proving. Theoretical analysis demonstrates that the mutual coherence between the whole projection matrix and the whole basis matrix keeps as good as the mutual coherence between the block matrix and blocked basis matrix. Experimental results show that the proposed method obtains better performance compared to existing methods. | LI Zhetao XIE Jingxiong ZHU Gengming PENG Xin XIE Yanrong CHOI Youngjune | 2016 | Chinese Journal of Electronics2016，25，3： | 2 |
| 4 | A Delay-Aware Congestion Control Protocol for Wireless Sensor Networks显示文摘In wireless sensor networks,congestion leads to buffer overflowing,and increases delay.The traditional solutions use rate adjustment to mitigate congestion,thus increasing the delay.A Delay-aware congestion control protocol(DACC)was presented to mitigate congestion and decrease delay.In order to improve the accuracy of the existing congestion detection model which is based on the buffer occupancy of a single node,DACC presents a new model considering both the real-time buffer occupancy and the average transmission time of packets.DACC uses the untapped bits in the IEEE 802.11 Distributed coordination function(DCF)frames header to carry congestion information.During the congestion alleviation period,DACC presents a channel occupancy mechanism which is based on the real-time buffer occupancy for the purpose of decreasing delay and preventing packet loss.Simulation results indicate that in terms of delay,packet delivery ratio,collision and buffer load,DACC has comparative advantages than those of 802.11 DCF,Priority-based congestion control protocol(PCCP)and Decoupling congestion control and fairness(DCCF). | PEI Tingrui LEI Fangqing LI Zhetao ZHU Gengming PENG Xin Youngjune CHOI Hiroo SEKIYA | 2017 | Chinese Journal of Electronics2017，26，3： | 2 |
| 5 | Wound healing properties of a 3-D scaffold comprising soluble silkworm gland hydrolysate and human collagen显示文摘 | Kyu-Oh Kim Youngjun Lee Jung-Wook Hwang Hojin Kim Sun Mi Kim Sung Woon Chang Heui Sam Lee Yong-Soo Choi | 2014 | Colloids and Surfaces B: Biointerfaces2014，，： | 1 |
| 6 | 2D-3D registration for 3D analysis of lower limb alignment in a weight-bearing condition显示文摘X-ray imaging is the conventional method for diagnosing the orthopedic condition of a patient. Computerized Tomography(CT) scanning is another diagnostic method that provides patient's 3D anatomical information. However, both methods have limitations when diagnosing the whole leg; X-ray imaging does not provide 3D information, and normal CT scanning cannot be performed with a standing posture. Obtaining 3D data regarding the whole leg in a standing posture is clinically important because it enables 3D analysis in the weight bearing condition.Based on these clinical needs, a hardware-based bi-plane X-ray imaging system has been developed; it uses two orthogonal X-ray images. However, such methods have not been made available in general clinics because of the hight cost. Therefore, we proposed a widely adaptive method for 2 D X-ray image and 3D CT scan data. By this method, it is possible to threedimensionally analyze the whole leg in standing posture. The optimal position that generates the most similar image is the captured X-ray image. The algorithm verifies the similarity using the performance of the proposed method by simulation-based experiments. Then, we analyzed the internal-external rotation angle of the femur using real patient data. Approximately 10.55 degrees of internal rotations were found relative to the defined anterior-posterior direction. In this paper, we present a useful registration method using the conventional X-ray image and 3D CT scan data to analyze the whole leg in the weight-bearing condition. | SHIM Eungjune KIM Youngjun LEE Deukhee LEE Byung Hoon WOO Sungkyung LEE Kunwoo | 2018 | Applied Mathematics(A Journal of Chinese Universities)2018，33，1： | 1 |
| 7 | Aspergillus fumigatus infection in two wild Eurasian black vultures ( Aegypius monachus Linnaeus) with carbofuran insecticide poisoning: A case report显示文摘 | Kwonil Jung Youngjun Kim Hang Lee Jong-Taek Kim | 2007 | The Veterinary Journal2007，，2： | 1 |
| 8 | Investigation of C02 Capture Mechanisms of Liquid-Like Nanoparti- cle Organic Hybrid Materials via Structural Characterization显示文摘 | Youngjune Park John Decatur Kun-Yi Andrew Lina | 2011 | Physical Chemistry Chemical Physics2011，13，18： | 1 |
| 9 | Color image processing pipeline: A general survey of digital still cam- era processing 显示文摘 | Rajeev R Wesley E Youngjun Y | 2005 | IEEE Signal Processing Magazine2005，22，1： | 1 |
| 10 | The impact of a peer-learning agent based on pair programming in a programming course显示文摘 | Han Keunwoo Lee Eunkyoung Lee Youngjun | 2010 | IEEE Transactions on Education2010，53，2： | 1 |
| 11 | Improvement of PAE in Doherty amplifier using dual bias control and PBG strueture显示文摘 | Kim H youngjun Seo Chulhun | 2007 | Piers Online2007，7，3： | 1 |
| 12 | Preparation and properties of propylene/POSS copolymer with rac-Et(Ind) 2ZrCl2 catalyst显示文摘 | Zhang Hexin Shin Youngjun Yoon Keunbyoung | | 0，，01： | 1 |
| 13 | Preparation of ultra high molecular weight polyethylene with MgCl2/TiCl4 catalyst:effect of hydrogen and cocatalyst on molecular weight and molecular weight distribution显示文摘 | Zhang Hexin Shin Youngjun Lee Dongho | | 0，，01： | 1 |
| 14 | Effects of high pressure processing on fatty acid composition and volatile compounds in Korean native black goat meat显示文摘 | Geunho Kang Soohyun Cho Pilnam Seong Beomyoung Park Sangwoo Kim Donghun Kim Youngjun Kim Sunmun Kang Kyoungmi Park | 2013 | Meat Science2013，，4： | 1 |
| 15 | Porogen- induced surface modification of nano-fibrous poly(L-lactic acid)scaffolds for tissue engineering 显示文摘 | Xiaohua Liu Youngjun Won Peter X Ma | 2006 | Biomaterials2006，27，： | 1 |
| 16 | Technology licensing partners显示文摘 | YoungJun Kim Nicholas S. Vonortas | 2006 | Journal of Economics and Business2006，，4： | 1 |
| 17 | New Development of Polyurethane Dispersion Derived from Blocked Aromatic Diisocyanate 显示文摘 | SUBRAMANI S PARK Youngjun LEE Youngsoo | 2003 | Progress in Organic Coatings2003，48，： | 1 |
| 18 | Relationship between physicochemical characteristics of Korean wheat flour and quality attributes of steamed bread显示文摘The purpose of this study is to identify major factors affecting the manufacture and quality of steamed bread,consumed in Southeast Asia including China,Japan,and Korea.Hence,flours of 11 Korean wheat cultivars were used to evaluate quality attributes of two different styles of steamed bread,Korean style steamed bread(KSSB)and northern-style Chinese steamed bread(NSCSB).KSSB prepared more ingredients and higher optimum water absorption of dough than NSCSB because Korean consumers prefer white and glossy surface and soft crumb.KSSB showed lower height,larger diameter and volume of steamed bread,higher stress relaxation,and softer texture of crumb than NSCSB.The correlation between flour characteristics and quality of steamed bread was different in KSSB and NSCSB.About 90%of variability in the height and volume of KSSB could be predicted from protein content,mixing tolerance of Mixograph,average particle size of flour,final viscosity and solvent retention capacity.Protein content and quality parameters also could explain the variation of steamed bread height in NSCSB.Korean wheat carrying Glu-A3c allele produced higher volume of steamed bread(704.7 mL)than Glu-A3d allele(645.8 mL)in KSSB,although there was no significant difference in volume of NSCSB by glutenin compositions.Glu-D1d and Glu-A3c alleles had softer texture of crumb than Glu-D1f and Glu-A3d alleles in KSSB,Glu-B3i allele also showed lower hardness of crumb than their counterpart allele in NSCSB.Hard wheat showed higher height and volume of steamed bread,and lower stress relaxation and hardness of crumb than soft wheat in KSSB. | Ji-Eun Kim Byung-Kee Baik Chul Soo Park Jae-Han Son Chang-Hyun Choi Youngjun Mo Tae-Il Park Chon-Sik Kang Seong-Woo Cho | 2019 | Journal of Integrative Agriculture2019，18，11： | 1 |
| 19 | Technology licensing partners 显示文摘 | Kim YoungJun Vonortas N S | 2006 | Journal of Economics and Business2006，，58： | 1 |
| 20 | The effects of surface modification on carbon felt electrodes for use in vanadium redox flow batteries显示文摘 | Kim Ki Jae Kim Youngjun Kim Jaehun | 2011 | Mater Chem Phys2011，131，12： | 1 |
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