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| 1 | Wet-chemistry synthesis of cobalt carbide nanoparticles as highly active and stable electrocatalyst for hydrogen evolution reaction显示文摘转变金属碳化物(TMC ) nanomaterials 正在答应选择到磅,并且广泛地为电气化学的氢进化反应被用作异构的 electrocatalysts (她的) 。在这个工作,综合的导致溴化物的湿化学的策略公司 2 C nanoparticles (NP ) 被开发。如此的 NP 展出了高 electrocatalytic 活动(= 为 j = 的 181 mV 10 | Siwei Li Ce Yang Zhen Yin Hanjun Yang Yifu Chen Lili Lin Mengzhu Li Weizhen Li Gang HU Ding Ma | 2017 | Nano Research2017，10，4： | 7 |
| 2 | Overview of the Second Generation AVS Video Coding Standard(AVS2)显示文摘AVS2 is a new generation video coding standard developed by the AVS working group. Compared with the first generation AVS video coding standard, known as AVS1, AVS2 significantly improves coding performance by using many new coding technologies,e.g., adaptive block partition and two level transform coding. Moreover, for scene video, e.g. surveillance video and conference video, AVS2 provided a background picture modeling scheme to achieve more accurate prediction, which can also make object detection and tracking in surveillance video coding more flexible. Experimental results show that AVS2 is competitive with High Efficiency Video Coding(HEVC) in terms of performance. Especially for scene video, AVS2 can achieve 39% bit rate saving over HEVC. | Shanshe Wang Falei Luo Siwei Ma | 2016 | ZTE Communications2016，14，1： | 6 |
| 3 | Fe5C2 nanoparticles as low-cost HER electrocatalyst:the importance of Co substitution显示文摘Constructing and understanding the doping effect of secondary metal in transition metal carbide(TMC)catalysts is pivotal for the design of low-cost hydrogen evolution reaction(HER) electrocatalysts. In this work, we developed a wet-chemistry strategy for synthesizing Co-modified Fe_5C_2 nanoparticles((Fe_(1-x)Cox)_5C_2 NPs) as highly active HER electrocatalysts in basic solution. The structure of(Fe_(1-x)Cox)_5C_2 NPs was characterized by X-ray diffraction(XRD), extended X-ray absorption fine structure spectra(EXAFS) and scanning/transmission electron microscopy(S/TEM), indicating that the isomorphous substitution of cobalt in the lattice of Fe_5C_2.(Fe_(0.75) Co_(0.25))_5C_2 exhibited the best HER activity(174 mV for j = -10 mA/cm^2). Computational calculation results indicate that Co provides the most active site for HER. X-ray adsorption spectra(XAS) studies further suggested that the electron transfer in Fe–C bonds are enhanced by the substitution of Co, which modulates the hydrogen adsorption on the adjacent electronic-enriched carbon, and therefore promotes HER activity. Our results affirm the design of lowcost bimetallic TMCs based HER catalysts. | Siwei Li Pengju Ren Ce Yang Xi Liu Zhen Yin Weizhen Li Hanjun Yang Jian Li Xiaoping Wang Yi Wang Ruochen Cao Lili Lin Siyu Yao Xiaodong Wen Ding Ma | 2018 | Science Bulletin2018，63，20： | 6 |
| 4 | Highly efficient K-Fe/C catalysts derived from metal-organic frameworks towards ammonia synthesis显示文摘Fe-based catalysts have been discovered as the best elementary metal-based heterogeneous catalysts for the ammonia synthesis in industrial application during the last century.Herein,a novel and scalable strategy is developed to prepare the K-promoted Fe/C catalyst with extremely high Fe loading (> 50 wt.%) through pyrolysis of the Fe-based metal-organic framework (MOF) xerogel.The obtained K-Fe/C catalysts exhibited superior activity and stability towards ammonia synthesis.The weight-specific reaction rate of Fe/C with K2O as promoter can achieve 12.4 mmol·g-1·h-1 at 350 ℃ and 30.4 mmol·g-1·h-1 at 400 ℃,approximately four and two times higher than that of the commercial fused-iron catalyst (3.4 mmol·g-1·h-1 at 350 ℃ and 16.7 mmol·g-1·h-1 at 400 ℃) under the same condition,respectively.The excellent performance of K-Fe/C can be ascribed to the inherited structure derived from the metal-organic frame precursors and the promotion of potassium,which can modify the binding energy of reactant molecules on the Fe surface,transfer electrons to iron for effective activation of nitrogen,prevent agglomeration of Fe nanoparticle (NPs) and restrain side reaction of carbon matrix to methane. | Pengqi Yan Wenhan Guo Zibin Liang Wei Meng Zhen Yin Siwei Li Mengzhu Li Mengtao Zhang Jie Yan Dequan Xiao Ruqiang Zou Ding Ma | 2019 | Nano Research2019，12，9： | 4 |
| 5 | Compressed sensing of complex-valued data显示文摘 | Siwei Yu A. Shaharyar Khwaja Jianwei Ma | 2011 | Signal Processing2011，，2： | 3 |
| 6 | LncRNA LINC00525 suppresses p21 expression viamRNA decay and triplex-mediated changes in chromatin structure in lung adenocarcinoma显示文摘Background:Emerging evidence suggests that long noncoding RNAs(lncRNAs)play crucial roles in various cancers.In the present study,we aim to investigate the function and molecular mechanism of an up-regulated and survivalassociated lncRNA,LINC00525,in lung adenocarcinoma(LUAD).Methods:The expression level of LINC00525 in tissueswas determined by quantitative reverse transcription polymerase chain reaction(RT-qPCR)and in situ hybridization(ISH).The functional role of LINC00525 in LUAD was investigated using gain-and loss-of-function approaches,both in vivo and in vitro.RNA pull-down,RNA immunoprecipitation(RIP),chromatin immunoprecipitation(ChIP),triplex-capture assay,dual-luciferase assay,gene expression microarray,and bioinformatics analysis were used to investigate the potential underlying mechanisms involved.Results:LINC00525 is highly expressed in LUAD cells and tissues.Survival analysis indicated that upregulation of LINC00525 was associated with poor prognosis in patients with LUAD patients.Knockdown of LINC00525 inhibited cell proliferation and cell cycle progression in vitro.In xenograft models,LINC00525 knockdown suppressed tumor growth and tumorigenesis of tumorbearing mice.Mechanistically,LINC00525 epigenetically suppressed p21 transcription by guiding Enhancer Of Zeste 2 Polycomb Repressive Complex 2 Subunit(EZH2)to the p21 promoter through an formation of RNA-DNA triplex with the p21 promoter,leading to increased trimethylation of lysine 27 on histone 3(H3K27me3)of the p21 promoter.In addition,LINC00525 repressed p21 expression post-transcriptionally by enhancing p21mRNA decay.LINC00525 promoted p21mRNAdecay by competitively binding toRNABindingMotif Single Stranded Interacting Protein 2(RBMS2).Conclusion:Our findings demonstrate that LINC00525 promotes the progression of LUAD by reducing the transcription and stability of p21 mRNA in concert with EZH2 and RBMS2,thus suggesting that LINC00525 may be a potential therapeutic target for clinical intervention in LUAD. | Panqi Fang Hao Chen Zhifei Ma Chencheng Han Wenda Yin Siwei Wang Hongyu Zhu Wenjia Xia Jie Wang Lin Xu Tongyan Liu Rong Yin | 2021 | Cancer Communications2021，41，7： | 2 |
| 7 | AVS video coding standard显示文摘 | Wen Gao Siwei Ma Li Zhang | 2010 | Intelligent Multimedia Communication2010，，： | 1 |
| 8 | Improved linear(hull)cryptanalysis of round-reduced versions of SIMON显示文摘Dear editor,SIMON is a family of lightweight block ciphers proposed by the U.S.National Security Agency in2013[1].It employs a Feistel structure,and performs well in hardware and software implementa- | Danping SHI Lei HU Siwei SUN Ling SONG Kexin QIAO Xiaoshuang MA | 2017 | Science China(Information Sciences)2017，60，3： | 1 |
| 9 | AVS 3D Video Coding Technology and System显示文摘Following the success of the audio video standard(AVS) for 2D video coding,in 2008,the China AVS workgroup started developing 3D video(3DV) coding techniques.In this paper,we discuss the background,technical features,and applications of AVS 3DV coding technology.We introduce two core techniques used in AVS 3DV coding:inter-view prediction and enhanced stereo packing coding.We elaborate on these techniques,which are used in the AVS real-time 3DV encoder.An application of the AVS 3DV coding system is presented to show the great practical value of this system.Simulation results show that the advanced techniques used in AVS 3DV coding provide remarkable coding gain compared with techniques used in a simulcast scheme. | Siwei Ma Shiqi Wang Wen Gao | 2012 | ZTE Communications2012，10，2： | 1 |
| 10 | Evolution of AVS video coding standards:twenty years of innovation and development显示文摘Ever since the founding of the Audio and Video Coding Standard(AVS)Workgroup of China in 2002,it has been dedicated to advancing and innovating the digital audio-video industry with highly efficient and economical encoding/decoding technologies.Three representative generations of video coding standards have been finalized and published,consistently improving the coding performance in the past two decades.The series of AVS standards establish solid foundations for ubiquitous video applications in the areas including acquisition,coding,production,delivery,integrated system,public service,general screen content,and mixed reality media.Along with the standardization process,an extensive amount of studies have been carried out on efficiency-aware designation,algorithm optimization,and hardware implementation of these innovative video coding techniques.This paper explains how those developed techniques provide a lasting impact on the video coding community,extensively,technologically,and systematically.In particular,we provide a comprehensive survey of the three generations of the standards,and timely and in-depth summarize the efforts of the AVS video coding standards in the twenty years.The rate-distortion performance comparisons,in particular in terms of the 8K ultra-high-definition(UHD)contents,reflect the elegant design of the state-of-the-art AVS3 standards.We have also elaborated on a variety of well-established and promising applications,including commercial level real-time 8K encoder,high-frame-rate decoder chip for cell phone,and live streaming solution for sports.In addition,the China Central Television(CCTV)of China Media Group(CMG),the state television of China,has officially launched the first 8K broadcasting channel(CCTV-8K)since 2021 using AVS3.Given the significant success realized by the AVS standards,it is envisioned that a new era of 8K UHD video is arriving. | Siwei MA Li ZHANG Shiqi WANG Chuanmin JIA Shanshe WANG Tiejun HUANG Feng WU Wen GAO | 2022 | Science China(Information Sciences)2022，65，9： | 1 |
| 11 | Joint video/depth rate allocation for 3-D video codingbased on view synthesis distortion model显示文摘 | LIU Yanwei HUANG Qingming MA Siwei | 2009 | SignalProcessing:Image Communication2009，24，8： | 1 |
| 12 | Side information generation with auto regressive model for low-delay distributed video coding显示文摘 | Yongbing Zhang Debin Zhao Hongbin Liu Yongpeng Li Siwei Ma Wen Gao | 2011 | Journal of Visual Communication and Image Representation2011，，： | 1 |
| 13 | Efficient and economical access to substituted benzothiazoles:coppercatalyzed coupling of 2-haloanilides with metal sulfides and subsequent condensation显示文摘 | MA Dawei XIE Siwei PENG Xue | 2009 | Angew Chem Int Ed2009，48，23： | 1 |
| 14 | Joint video/depth rate allocation for 3D video coding based on view synthesis distor- tion model显示文摘 | LIU Yanwei HUANG Qingming MA Siwei | 2009 | Signal processing: Image Communication2009，24，8： | 1 |
| 15 | An excellent enzymatic lactic acid biosensor with ZnO nanowires-gated AIGaAs/GaAs high electron mobility transistor显示文摘 | Ma Siwei Liao Qingliang Liu Hanshuo | 2012 | Nanoscale2012，，9： | 1 |
| 16 | Thermometry strategy developed based on fluorescence contrast driven by varying excitations in codoped LiNbO3显示文摘We propose what we believe is a novel optical thermometry strategy(FIR-Ex)based on the fluorescence intensity ratio(FIR)between two radiations associated with the same emission peak but different excitation wavelengths,in contrast to the traditional approach(FIR-Em),which depends on the FIR at varying emission wavelengths.The temperature-dependent FIR within the FIR-Ex strategy arises from the different charge/energy evolution routes,rather than the distribution of thermally coupled levels within the FIR-Em strategy.Considerable diversity in thermal behaviors and luminescence mechanisms was demonstrated by analyzing the 618 nm red emission in Pr^3+-doped congruent LiNbO3(Pr:CLN)under 360 and 463 nm excitations.The temperature sensitivity was further improved via Mg^2+ codoping due to the optimization of charge dynamics and energy transfer processes.Given its wide detection scope,relatively high absolute sensitivity at low temperature,and high tunability of temperature sensitivity,the FIR-Ex strategy is promising for developing optical temperature-sensing materials with high performance. | SIWEI LONG SHAOPENG LIN DECAI MA YUNZHONG ZHU HUASHAN LI BIAO WANG | 2020 | Photonics Research2020，8，2： | 1 |
| 17 | New Design of Shape Memory Polymers Based on Natural Rubber Crosslinked via Oxa-Michael Reaction显示文摘 | Lin Tengfei Ma Siwei Lu Yang | 2014 | Applied Materials and Interfaces2014，6，8： | 1 |
| 18 | Guest Editorial:Special issue on media convergence and intelligent technology in the metaverse显示文摘The metaverse is a new type of Internet application and social form that integrates a variety of new technologies,including artificial intelligence,digital twins,block chain,cloud computing,virtual reality,robots,with brain-computer interfaces,and 5G.Media convergence technology is a systematic and comprehensive discipline that applies the theories and methods of modern science and technology to the development of media innovation,mainly including multimedia creation,production,communication,service,consumption,reproduction and so on.The emergence of new technologies,such as deep learning,distributed computing,and extended reality has promoted the development of media integration in the metaverse,and these technologies are the key factors that promote the current transformation of the Internet to the metaverse. | Siwei Ma Maoguo Gong Guojun Qi Yun Tie Ivan Lee Bo Li Cong Jin | 2023 | CAAI Transactions on Intelligence Technology2023，8，2： | 0 |
| 19 | Side information refinement in distributed video coding显示文摘 | 刘鸿彬 Zhao Debin Ma Siwei Gao Wen | 2012 | High Technology Letters2012，18，4： | 0 |
| 20 | Culture and Tourism Market During the National Day Holiday in 2019显示文摘Based on the data of cultural and tourism departments,communication operators and online travel service providers in different regions,the Ministry of Culture and Tourism calculated that 782 million domestic tourists were received during the 7-day National Day holiday in 2019,a year-on-year increase of 7.81%. | Ma Siwei | 2019 | China & The World Cultural Exchange2019，85，10： | 0 |
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