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Preparation of Co/S co-doped carbon catalysts for excellent methylene blue degradation

International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 169-181页

作者： Haixu Li Haobo He Tiannan Jiang Yunfei Du Zhichen Wu Liang Xu Xinjie Wang Xiaoguang Liu Wanhua Yu Wendong Xue School of Materials Science and Engineering University of Science and Technology BeijingBeijing 100083China Beijing Jinyu Tongda Refractory technologies Co. Ltd.Beijing 100085China

S and Co co-doped carbon catalysts were prepared via pyrolysis of MOF-71 and thiourea mixtures at 800℃at a mass ratio of MOF-71 to thiourea of 1:0.1 to effectively activate peroxymonosulfate(PMS)for methylene blue(MB)*** effects of two different mixing routes were identified on the MB degradation ***,the catalyst obtained by the alcohol solvent evaporation(MOF-AEP)mixing route could degrade 95.60%MB(50 mg/L)within 4 min(degradation rate:K=0.78 min^(-1)),which was faster than that derived from the direct grinding method(MOF-DGP,80.97%,K=0.39 min^(-1)).X-ray photoelectron spectroscopy revealed that the Co-S content of MOF-AEP(43.39at%)was less than that of MOF-DGP(54.73at%),and the proportion of C-S-C in MOF-AEP(13.56at%)was higher than that of MOF-DGP(10.67at%).Density functional theory calculations revealed that the adsorption energy of Co for PMS was -2.94 eV when sulfur was doped as C-S-C on the carbon skeleton,which was higher than that when sulfur was doped next to cobalt in the form of Co-S bond(-2.86 eV).Thus,the C-S-C sites might provide more contributions to activate PMS compared with ***,the degradation parameters,including pH and MOF-AEP dosage,were ***,radical quenching experiments and electron paramagnetic resonance(EPR)measurements revealed that ^(1)O_(2)might be the primary catalytic species,whereas·O~(2-)might be the secondary one in degrading MB.

关键词： advanced oxidation process alcohol solvent evaporation hydrogen bond S and Co co-doped carbon catalysts wastewater remediation

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The Long Road to Understanding the Baculovirus P10 Protein

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Virologica Sinica 2009年第4期24卷 227-242页

作者： David C. J. Carpentier Linda A. King School of Life Sciences Oxford Brookes University Headington Campus Oxford United Kingdom oxford expression technologies ltd Oxford Brookes University Headington Campus Oxford United Kingdom

The baculovirus P 10 protein has always represented a mystery in the field of insect virology. Like the baculovirus polyhedrin protein it is expressed at high levels very late in infection. Homologues of the Autographa californica nucleopolyhedrovirus p10 gene are conserved in all Alphabaculoviruses and in other viruses of lepidopteran hosts yet is completely dispensable for virus replication and transmission. PIO is a microtubule interacting protein whose expression has been associated with the formation of a variety of complex and extensive cytoplasmic and nuclear structures. PIO has been associated with a number of roles during infection ranging from the formation of virus occlusion bodies, to affecting the rate of cellular and/or nuclear lysis during the final stages of the virus replication cycle. In this article we review recent work aimed at understanding the role of this enigmatic protein, putting them into context with recent advances in understanding of protein structure and function. We look back at a number of historical studies and observations, reanalysing their conclusions based on recent data and our own observations. The role of the P 10 protein during baculovirus replication remains elusive, however, novel avenues of investigation have been identified that will, we are sure, eventually lead to an understanding of this protein.

关键词： Baculovirus P10 microtubule Polyhedral occlusion body Fibrous body/fibrillar structure

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Visualizing traumatic brain injury:ocular clues for diagnosis and assessment

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Neural Regeneration Research 2025年第5期20卷 1399-1400页

作者： Morteza Abyadeh Vivek Gupta Yuyi You Joao A.Paulo Mehdi Mirzaei ProGene technologies Pty ltd SydneyNSWAustralia Department of Clinical Medicine Faculty of MedicineHealth and Human SciencesMacquarie Medical SchoolMacquarie UniversityMacquarie ParkNorth RydeSydneyNSWAustralia Department of Cell Biology Harvard Medical SchoolBostonMAUSA

Traumatic brain injury (TBI) is defined as damage to the brain resulting from an external sudden physical force or shock to the *** is considered a silent public health epidemic causing significant death and disability *** were 64,000 TBI related deaths reported in the USA in 2020,with about US$76 billion in direct and indirect medical costs annually.

关键词： diagnosis ocular injury

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A novel fabrication approach for an athermal arrayed-waveguide grating

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Journal of Semiconductors 2010年第1期31卷 39-41页

作者：周天宏马卫东 Accelink technologies Co Ltd

A novel method for fabricating an athermal AWG is proposed, using a unique apparatus for ITU-T center wavelength adjustment and optical coupling of two cut-parts. UV adhesive or sticky gel is applied into the gap between the cut-elements and the alignment base substrate by capillary infiltration. The spectrum profiles are almost the same as those of the original chip state, and no deterioration is observed resulting from athermalization. Flat-top athermal AWG modules of 100 GHz × 40 ch are fabricated. Over a temperature range of-40 to 85 ℃, the center wavelength shift is ±22 pm, and the insertion loss change is less than ±0.11 dB.

关键词： AWG optical waveguide filter planar lightwave circuit wavelength division multiplexing

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Vision, application scenarios, and key technology trends for 6G mobile communications

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Science China(Information Sciences) 2022年第5期65卷 5-31页

作者： Zhiqin WANG Ying DU Kejun WEI Kaifeng HAN Xiaoyan XU Guiming WEI Wen TONG Peiying ZHU Jianglei MA Jun WANG Guangjian WANG Xueqiang YAN Jiying XIANG He HUANG Ruyue LI Xinhui WANG Yingmin WANG Shaohui SUN Shiqiang SUO Qiubin GAO Xin SU China Academy of Information and Communications Technology Huawei technologies Canada Co. Ltd. Huawei technologies Co. Ltd.(Hangzhou) Huawei technologies Co. Ltd.(Chengdu) Huawei technologies Co. Ltd.(Shanghai) ZTE Corporation Datang Mobile Communications Equipment Co. Ltd.

With the global commercialization of the fifth-generation(5G) network, many countries, including China, USA, European countries, Japan, and Korea, have started exploring 6G mobile communication network, following the tradition of “planning the next while commercializing one generation”. Currently,studies on 6G networks are at the infancy stage. Research on the vision and requirements for 6G is still ongoing, and the industry is yet to clarify the key enabling technologies for 6G. However, 6G will certainly build on the success of 5G. Therefore, developing high-quality 5G networks and seamlessly integrating 5G with verticals are the priorities before 2030, when 6G is projected to be commercialized. Also, global 5G standards will keep evolving to better support vertical applications. As a milestone, the Third-Generation Partnership Project(3GPP) published Release 16 in July 2020, which continuously enhanced the capabilities of mobile broadband service based on Release 15 and realized the support for low-delay and high-reliability applications, such as Internet of Vehicles and industrial Internet. Currently, 3GPP is working on Releases 17 and 18, focusing on meeting the demands of medium-and high-data-rate machine communication with low-cost and high-precision positioning, which will be published in June 2022. Thus, 6G networks will further expand the application fields and scope of the Internet of Things to accommodate those services and applications that are beyond the capabilities of 5G networks. Herein, we present our vision, application scenarios,and key technological trends for 6G networks. Furthermore, we propose several future research opportunities in 6G networks with regard to industrialization and standardization.

关键词： sixth-generation (6G) mobile communication 6G vision application scenarios of 6G terahertz communication integrated sensing and communication integrated intelligence and communication ultra-massive MIMO reconfigurable intelligent surface co-frequency co-time full-duplex holographic radio technology

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Computer Simulation of the Process of Quenching Large-Size Parts in Water and Aqueous Solutions

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材料热处理学报 2004年第05B期25卷 733-735页

作者： N.I.Kobasko W.S.Morhuniuk V.V.Dobrivecher A.M.Weinov Intensive technologies ltd. Kyiv UkraineIntensive Technologies Ltd. Kyiv UkraineIntensive Technologies Ltd. Kyiv UkraineJ.S.C. "Novokramatorsky Mashinostroitelny Zavod" Kramatorsk Ukraine

The article presents results of the computer simulation of quenching large-size parts in water and aqueous solutions. It has been shown that the main attention should be paid to eliminating film boiling and providing uniform cooling at the surface of the part to be quenched. Simplified formulas for calculating the optimal time of cooling large-size steel parts are presented.

关键词：强化淬火大型零件应力分布简化计算

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Prototype for 5G New Air Interface Technology SCMA and Performance Evaluation

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China Communications 2015年第S1期12卷 38-48页

作者： LU Lei CHEN Yan GUO Wenting YANG Huilian WU Yiqun XING Shuangshuang Huawei technologies Co. Ltd.

Sparse code multiple access(SCMA) is a novel non-orthogonal multiple access scheme proposed to meet the challenging demand of the future 5G communications, especially in support of the massive connections. The coded bits from each data stream will be directly mapped as multi-dimensional SCMA codeword in complex domain and then spread onto the physical resource elements in a sparse manner. The number of codewords that can be nonorthogonally multiplexed in one SCMA block can be made much larger than the number of orthogonal resource elements therein, resulting in an overloaded system. The sparsity in the spreading pattern and the design in the multidimensional modulator jointly ensure the SCMA codewords can be robustly decoded with low complexity. In this paper, we focus on the low complexity receiver design and verified the superior of an SCMA system via simulations and real-time prototyping. Lab tests and field tests all show that SCMA is a promising candidate for 5G non-orthogonal multiple access which can provide up to 300% overloading that triples the whole system throughput while still enjoying the link performance close to orthogonal transmissions.

关键词： 5G non-orthogonal multiple access sparse code multiple access(SCMA) MAX-Log MPA massive connectivity low latency high reliability Prototype verification

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On building machine learning pipelines for Android malware detection:a procedural survey of practices,challenges and opportunities

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Cybersecurity 2022年第4期5卷 19-55页

作者： Masoud Mehrabi Koushki Ibrahim AbuAlhaol Anandharaju Durai Raju Yang Zhou Ronnie Salvador Giagone Huang Shengqiang Huawei technologies Canada Co. LtdVancouverCanada Huawei technologies CanadaCo LtdOttawaCanada Simon FraserUniversity BurnabyVancouverCanada uawei technologies Canada Co. LtdTorontoCanada.

As the smartphone market leader,Android has been a prominent target for malware *** number of malicious applications(apps)identified for it has increased continually over the past decade,creating an immense challenge for all parties *** market holders and researchers,in particular,the large number of samples has made manual malware detection unfeasible,leading to an influx of research that investigate Machine Learning(ML)approaches to automate this ***,while some of the proposed approaches achieve high performance,rapidly evolving Android malware has made them unable to maintain their accuracy over *** has created a need in the community to conduct further research,and build more flexible ML *** so,however,is currently hindered by a lack of systematic overview of the existing literature,to learn from and improve upon the existing *** survey papers often focus only on parts of the ML process(e.g,data collection or model deployment),while omitting other important stages,such as model evaluation and explanation.n this paper,we address this problem with a review of 42 highly-cited papers,spanning a decade of research(from 2011 to 2021).We introduce a novel procedural taxonomy of the published literature,covering how they have used ML algorithms,what features they have engineered,which dimensionality reduction techniques they have employed,what datasets they have employed for training,and what their evaluation and explanation strategies *** from this taxonomy,we also identify gaps in knowledge and provide ideas for improvement and future work.

关键词： Android Machine learning Malware classification Smartphone security Survey Taxonomy

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Quantum annealing for semi-supervised learning

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Chinese Physics B 2021年第4期30卷 74-80页

作者： Yu-Lin Zheng Wen Zhang Cheng Zhou Wei Geng Hisilicon Research Huawei Technologies Co.Ltd.ShenzhenChina

Recent advances in quantum technology have led to the development and the manufacturing of programmable quantum annealers that promise to solve certain combinatorial optimization problems faster than their classical ***-supervised learning is a machine learning technique that makes use of both labeled and unlabeled data for training,which enables a good classifier with only a small amount of labeled *** this paper,we propose and theoretically analyze a graph-based semi-supervised learning method with the aid of the quantum annealing technique,which efficiently utilizes the quantum resources while maintaining good *** illustrate two classification examples,suggesting the feasibility of this method even with a small portion(30%) of labeled data involved.

关键词： quantum annealing semi-supervised learning machine learning

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Modeling of program Vth distribution for 3-D TLC NAND flash memory

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Science China(Information Sciences) 2019年第4期62卷 187-196页

作者： Kunliang WANG Gang DU Zhiyuan LUN Wangyong CHEN Xiaoyan LIU Institute of Microelectronics Peking University Huawei technologies Co. Ltd.

This paper proposes a simulation method to model the program Vth distribution of 3-D vertical channel TLC/QLC charge-trapping NAND flash memory. The program Vth distribution can be calculated by considering ISPP noise, WL-WL interference, and the RTN effect of tunneling oxide and poly Si, which are the major physical factors affecting the width of program Vth distribution. Then, the program Vth distribution shapes with different ISPP incremental voltage steps are compared, and the results are found to be consistent with the experimental results. Code and layer-dependent coupling coefficients of WL-WL interference in 3-D vertical channel NAND flash memory are considered. The effect of RTN on the program Vth distribution is comprehensively studied. The program Vth distribution of a WL is calibrated with the measurement, and a good agreement is obtained, validating the array program Vth distribution simulation method. The simulation method can help in improving the reliability of 3-D TLC NAND flash memory and provides guidance for the design and optimization of 3-D QLC NAND flash memory technology.

关键词： modeling and simulation measurement reliability program Vth distribution charge-trapping memory 3-D vertical channel TLC/QLC NAND flash memory

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