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Xue FAN(Xue FAN),Seongtaek RIM(Seongtaek RIM),Mengmeng WANG(Mengmeng WANG) 동아시아경상학회 2023 The East Asian Journal of Business Economics Vol.11 No.1
Purpose – In this study, we aimed to theorize blockchain-based social media platform users’ commitment by examining the impact of their perceived justice of the token reward system. In addition, this study applied psychological ownership theory to verify the underlying mechanism between users’ perceptions of justice and their commitment to the platforms. Research design, data, and methodology – To empirically test our conceptual framework in the study, we collected data through a web-based survey approach from the responses of 385 users who had experience with blockchainbased social media platforms. We employed a structural equation modeling approach to empirically test our proposed hypotheses. Result – The results indicated that distributive justice and informational justice have positive effects on user commitment. The results also showed that psychological ownership plays an important role in mediating the relationship between users’ sense of distributive justice and commitment, and between procedural justice and commitment. The findings provided a better understanding of the sense of justice and user commitment in a blockchain-based social media environment. Conclusion – This study represents a preliminary attempt to theorize and empirically examine blockchain-based social media platform users’ commitment. This study provided important contributions to the literature on how the effect of users’ sense of justice in a reward system affects their commitment to blockchain-based social media platforms.
Fan, Xue,Shin, Hyunchul IET 2016 IET computer vision Vol.10 No.6
<P>In this study, a novel and efficient technique is proposed for road vanishing point detection in challenging scenes. Currently, most existing texture-based methods detect the vanishing point using pixel wise texture orientation estimation and voting map generation, which suffers from high computational complexity. Since only road trails (e.g. road edges, ruts, and tire tracks) would contribute informative votes to vanishing point detection, the Weber adaptive local filter is proposed to distinguish road trails from background noise, which is envisioned to reduce the workload and to eliminate uninformative votes introduced by the background noise. Furthermore, instead of using the conventional pixel-wise voting scheme, the salient-block-wise weighted soft voting is developed to eliminate most of the noise votes introduced by incorrectly estimated pixel-wise texture orientations, and to further reduce the computation time of voting stage as well. The experimental results on the benchmark dataset demonstrate that the proposed method shows superior performance. The authors' method is about ten times faster in detection speed and outperforms by 3.6% in detection accuracy, when compared with a well-known state-of-the-art approach.</P>
Xue Zhao,Ruina Ma,An Du,Yinan Zhang,Xue Zhao,Yongzhe Fan,Xiaoming Cao 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2019 NANO Vol.14 No.7
The charge recombination caused by surface defects limits photovoltaic properties of quantum dot-sensitized solar cells (QDSSCs), which can be suppressed by modifying organic or inorganic molecules and atomic ligands. In this paper, octa-aminopropyl polyhedral oligomeric silsesquioxane (OA-POSS) connected and modified near-infrared absorption CdSeTe quantum dots (QDs) through coupling agent (1-ethyl-3-3-dimethylaminopropyl carbodiimide hydrochloride). The results suggest that OA-POSS reduces the surface defects of CdSeTe QDs and suppresses charge recombination. Therefore, the power conversion efficiency improves nearly 41%, which increases from 2.00% to 2.82%.
Decomposition Properties of Trifluoroiodomethane under Discharges and Interruptions
Fan-Yi Cai,Dong-Xian Tan,Bai-Jie Zhou,Jian Xue,Deng-Ming Xiao 대한전기학회 2018 Journal of Electrical Engineering & Technology Vol.13 No.6
This paper is devoted to detecting decomposition characteristics of Iodotrifluoromethane (CF3I) under alternating current (AC) discharges or load current interruptions. The decomposition products are measured utilizing chromatography-mass spectroscopy. It is found that less than 1% CF3I gas decomposed after several interruptions at load current of 200 A or hundred times of AC discharges. However, under interruptions at a current of 400 A, more than 95% CF3I gas decomposed into carbon tetrafluoride (CF4) and hexafluoroethane (C2F6). The equilibrium compositions based on Gibbs free energy minimization of CF3I was calculated to explain the decomposition mechanism.
Fan, Jean,Lee, Hae-Ock,Lee, Soohyun,Ryu, Da-eun,Lee, Semin,Xue, Catherine,Kim, Seok Jin,Kim, Kihyun,Barkas, Nikolaos,Park, Peter J.,Park, Woong-Yang,Kharchenko, Peter V. Cold Spring Harbor Laboratory Press 2018 Genome research Vol.28 No.8
<P>Characterization of intratumoral heterogeneity is critical to cancer therapy, as the presence of phenotypically diverse cell populations commonly fuels relapse and resistance to treatment. Although genetic variation is a well-studied source of intratumoral heterogeneity, the functional impact of most genetic alterations remains unclear. Even less understood is the relative importance of other factors influencing heterogeneity, such as epigenetic state or tumor microenvironment. To investigate the relationship between genetic and transcriptional heterogeneity in a context of cancer progression, we devised a computational approach called HoneyBADGER to identify copy number variation and loss of heterozygosity in individual cells from single-cell RNA-sequencing data. By integrating allele and normalized expression information, HoneyBADGER is able to identify and infer the presence of subclone-specific alterations in individual cells and reconstruct the underlying subclonal architecture. By examining several tumor types, we show that HoneyBADGER is effective at identifying deletions, amplifications, and copy-neutral loss-of-heterozygosity events and is capable of robustly identifying subclonal focal alterations as small as 10 megabases. We further apply HoneyBADGER to analyze single cells from a progressive multiple myeloma patient to identify major genetic subclones that exhibit distinct transcriptional signatures relevant to cancer progression. Other prominent transcriptional subpopulations within these tumors did not line up with the genetic subclonal structure and were likely driven by alternative, nonclonal mechanisms. These results highlight the need for integrative analysis to understand the molecular and phenotypic heterogeneity in cancer.</P>
A Resilience Model for Engineered Slopes Subject to Anchor Corrosion
Xue-You Li,Zeng-Bin Fan,Tao Lu,Te Xiao,Li-Min Zhang 대한토목학회 2018 KSCE JOURNAL OF CIVIL ENGINEERING Vol.22 No.3
Many high engineered slopes are stabilized using anchors, which may corrode over time. Proper maintenance is essential to recover the system performance and upkeep slope functions. This paper presents a resilience model for maintenance decision by analysing the degradation of an anchor-stabilized slope due to corrosion and evaluating the recovery of slope performance after maintenance. Failure probability is used as an indicator to characterize the evolution of slope performance within its service life. The timing for maintenance is determined when the failure probability reaches an intolerable value. Information obtained from regular inspections is used to reduce the uncertainty in the determined maintenance time. The effectiveness of possible repair schemes is measured by a resilience index for the slope attained after maintenance, which considers the reduction in the failure probability and the duration over which the failure probability remains acceptable. A benefit index, which incorporates both the effectiveness and cost of a repair measure, is defined and used to quantitatively evaluate possible maintenance schemes. The proposed model is illustrated using an anchor-stabilized rock slope example, which provides a means to quantitatively assess different repair measures and enables engineers to select an effective and economic measure for slope maintenance.
Fan Zeng,Wan-Liang Lu,Rui-Jun Ju,Xue-Tao Li 한국약제학회 2014 Journal of Pharmaceutical Investigation Vol.44 No.7
Multidrug resistance is a major cause that leadsto the refractory of cancers after a combination strategy bychemotherapy, radiation and surgical treatment. Among thecomprehensive treatment, chemotherapy still plays a crucialrole in eliminating malignant cells. The objectives ofpresent review were to elucidate the research advances inthe mechanism of cancer multidrug resistance and theliposomes-based treatment strategy. The drug resistancecould be related to cancer cells, heterogeneity, microenvironment,and physiological barriers. Drug resistancemechanisms, which involved in adenosine triphosphate(ATP)-binding cassette (ABC) transporters, cytoplasm,nucleus, apoptotic proteins, cancer stem cells, side-populationcancer cells, angiogenesis, vasculogenic mimicrychannels, extracellular matrix, and blood–brain barrier,were discussed. Latest advances in the nanostructuredliposome treatment strategy were summarized, includingregulating the overexpression of ABC transporters, andtargeting treatments on mitochondria, apoptotic genes,cancer stem cells, cancer side-population cells, new bloodvessels, vascular mimicry channels, extracellular matrix,and blood–brain barrier. These translational investigationsprovide new insights into current cancer therapy, anduseful considerations for further developments of the liposomes-based treatment strategy.