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Nano-Micro Letters 2021年第4期13卷 30-42页

作者： Dongyue Wang Dongzhi Zhang Peng Li Zhimin Yang Qian Mi liandong yu College of Control Science and Engineering China University of Petroleum(East China)Qingdao 266580People’s Republic of China State Key Laboratory of Precision Measurement Technology and Instruments Department of Precision InstrumentsTsinghua UniversityBeijing 100084People’s Republic of China

Two-dimensional material has been widely investigated for potential applications in sensor and flexible electronics.In this work,a self-powered flexible humidity sensing device based on poly(vinyl alcohol)/Ti_(3)C_(2)Tx(PVA/MXene)nanofibers film and monolayer molybdenum diselenide(MoSe2)piezoelectric nanogenerator(PENG)was reported for the first time.The monolayer MoSe_(2)-based PENG was fabricated by atmospheric pressure chemical vapor deposition techniques,which can generate a peak output of 35 mV and a power density of42 mW m^(-2).The flexible PENG integrated on polyethylene terephthalate(PET)substrate can harvest energy generated by different parts of human body and exhibit great application prospects in wearable devices.The electrospinned PVA/MXene nanofiber-based humidity sensor with flexible PET substrate under the driven of monolayer MoSe_(2) PENG,shows high response of~40,fast response/recovery time of 0.9/6.3 s,low hysteresis of 1.8%and excellent repeatability.The self-powered flexible humidity sensor yields the capability of detecting human skin moisture and ambient humidity.This work provides a pathway to explore the high-performance humidity sensor integrated with PENG for the self-powered flexible electronic devices.

关键词： Self-powered sensing Monolayer molybdenum diselenide Piezoelectric nanogenerator Humidity sensor Flexible electronics

Controllable two-dimensional Kerr and Raman–Kerr frequency combs in microbottle resonators with selectable dispersion

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Photonics Research 2021年第2期9卷 171-180页

作者： XUEYING JIN XIN XU HAORAN GAO KEYI WANG HAOJIE XIA liandong yu School of Instrument Science and Opto-electronics Engineering Hefei University of TechnologyHefei 230009China Department of Precision Machinery and Precision Instrumentation University of Science and Technology of ChinaHefei 230026China

We report a broadband two-dimensional(2 D) Kerr and Raman–Kerr frequency comb generation in a silica bottle resonator accounting for azimuthal and axial degrees of freedom and pioneer a method that allows for controlled and reversible switching between a four wave mixing(FWM) state and a stimulated Raman scattering state. The repetition rate of the Raman–Kerr comb is not an integer number of the free spectral range, which spans more than 242 nm with hundreds of teeth. We show that, experimentally and numerically, multiple 2 D comb regimes can be selectively accessed via dispersion engineering by exciting different orders of axial modes or modifying the curvature of the axial profile, involving cascaded FWM, Raman lasing, and Raman-assisted FWM. The effect of axial curvature on dispersion is associated with the axial mode number in bottle resonators. Our approach enables dispersion and spectral engineering flexibility in any resonator with localized axial modes.

关键词： resonator dispersion curvature

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基于石墨柔性压力传感器的实践教学方案设计

实验技术与管理 2024年第3期41卷 238-243页

作者：陈孝喆高荣科于连栋中国石油大学(华东)控制科学与工程学院山东青岛266580

该文通过石墨柔性压力传感器课程设计,使学生学习了先进的柔性传感器设计理念,并让他们发挥主观能动性进行自主创作。该课程设计涉及电子工程、材料科学、机械工程等多学科知识,着重开展了石墨柔性压力传感器、电阻检测与控制电路以及... 详细信息

该文通过石墨柔性压力传感器课程设计,使学生学习了先进的柔性传感器设计理念,并让他们发挥主观能动性进行自主创作。该课程设计涉及电子工程、材料科学、机械工程等多学科知识,着重开展了石墨柔性压力传感器、电阻检测与控制电路以及数值模拟上位机三大模块的设计。这一课程设置符合智能感知工程新专业人才培养的发展趋势,通过这一课程的学习,能够培养学生发现问题、解决问题的能力,有利于复合型、创新型、应用型专业人才的培养。

关键词：智能感知工程传感器课程设计柔性压力传感器教学改革

Implementation of Abstract MAC Layer Under Jamming

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Tsinghua Science and Technology 2022年第2期27卷 257-269页

作者： Yifei Zou Minghui Xu Dongxiao yu liandong Chen Shaoyong Guo Xiaoshuang Xing School of Computer Science and Technology Shandong UniversityQingdao 266237China Information and Telecommunication Branch State Grid Hebei Electric Power Company Ltd.Shijiazhuang 050022China State Key Laboratory of Networking and Switching Technology Beijing University of Posts and TelecommunicationsBeijing 100876China School of Computer Science and Engineering Changshu Institute of TechnologyChangshu 215500China

In the past decades,with the widespread implementation of wireless networks,such as the Internet of Things,an enormous demand for designing relative algorithms for various realistic scenarios has arisen.However,with the widening of scales and deepening of network layers,it has become increasingly challenging to design such algorithms when the issues of message dissemination at high levels and the contention management at the physical layer are considered.Accordingly,the abstract medium access control(absMAC)layer,which was proposed in2009,is designed to solve this problem.Specifically,the absMAC layer consists of two basic operations for network agents:the acknowledgement operation to broadcast messages to all neighbors and the progress operation to receive messages from neighbors.The absMAC layer divides the wireless algorithm design into two independent and manageable components,i.e.,to implement the absMAC layer over a physical network and to solve higher-level problems based on the acknowledgement and progress operations provided by the absMAC layer,which makes the algorithm design easier and simpler.In this study,we consider the implementation of the absMAC layer under jamming.An efficient algorithm is proposed to implement the absMAC layer,attached with rigorous theoretical analyses and extensive simulation results.Based on the implemented absMAC layer,many high-level algorithms in non-jamming cases can be executed in a jamming network.

关键词： abstract MAC layer distributed algorithm Rayleigh-fading model jamming networks

液态排渣锅炉全烧和大比例掺烧高碱煤运行优化

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热力发电 2024年第1期53卷 64-72页

作者：周昊李辉马翔李丹张海东刘笑邓月海吴连东刘宇天津华能杨柳青热电有限责任公司天津300380 华能国际电力股份有限公司北京100031 西安热工研究院有限公司陕西西安710054

为掌握液态排渣锅炉全烧和大比例掺烧高碱煤的关键参数和运行经验,基于某电厂300 MW等级液态排渣锅炉进行了长期工程试验,对可能存在的燃烧组织、NO_(x)控制、排渣和沾污等问题进行分析,针对性的对燃烧系统、热物改性系统和排渣系统进... 详细信息

为掌握液态排渣锅炉全烧和大比例掺烧高碱煤的关键参数和运行经验,基于某电厂300 MW等级液态排渣锅炉进行了长期工程试验,对可能存在的燃烧组织、NO_(x)控制、排渣和沾污等问题进行分析,针对性的对燃烧系统、热物改性系统和排渣系统进行了改造。并进行了长期的运行数据记录和关键参数记录,在全烧和高比例掺烧高碱煤30万t后,锅炉各项运行参数正常。工程试验证明:该电厂300 MW等级液态排渣锅炉经升级优化后对高碱煤的的适应能力极强,在燃煤组分w(Al_(2)O_(3))<25%、w(Fe_(2)O_(3))<15%、12%

关键词：高碱煤液态排渣锅炉运行优化沾污结渣

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基于工业机器人的三维扫描测量实验平台设计

实验室研究与探索 2024年第2期43卷 93-97页

作者：贾华坤陈浩涵陈晨高荣科陆洋于连栋中国石油大学(华东)控制科学与工程学院山东青岛266580

为支撑新工科专业人才培养,设计一套三维扫描测量实验平台。平台硬件系统主要包括工业机器人、激光扫描仪和光学跟踪系统;在OpenCASCADE软件平台实现三维交互环境创建、待测零部件CAD模型导入;依据自由曲面曲率特征提取自由曲面测量点,... 详细信息

为支撑新工科专业人才培养,设计一套三维扫描测量实验平台。平台硬件系统主要包括工业机器人、激光扫描仪和光学跟踪系统;在OpenCASCADE软件平台实现三维交互环境创建、待测零部件CAD模型导入;依据自由曲面曲率特征提取自由曲面测量点,用四元数方法计算机器人末端在各测量点的空间位姿;在仿真软件RobotStudio生成机器人扫描测量路径并进行碰撞检测,将扫描路径输出为机器人可执行文件加载到工业机器人,实现高效率、高精度扫描测量。平台可服务智能感知工程专业的“三维智能感知技术”课程,有助于学生深入理解光学精密测量、机器人建模等相关知识,提高学生解决复杂检测问题的实践能力和创新能力。

关键词：工业机器人扫描测量路径规划智能感知工程

高精度自由空间光学时频基准传输技术研究进展

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激光与光电子学进展 2023年第3期60卷 125-133页

作者：于连栋朱家圣陆洋中国石油大学(华东)控制科学与工程学院山东青岛266555

自由空间时频基准传输是全球授时与同步、高速宽带通信、卫星编队飞行和空间物理参数监测等应用的关键技术,光钟技术的发展对光学时频基准传输精度提出了更高的要求。本文介绍了国内外自由空间光学时频基准传输技术的研究进展,重点介绍... 详细信息

自由空间时频基准传输是全球授时与同步、高速宽带通信、卫星编队飞行和空间物理参数监测等应用的关键技术,光钟技术的发展对光学时频基准传输精度提出了更高的要求。本文介绍了国内外自由空间光学时频基准传输技术的研究进展,重点介绍了不同研究机构基于光学频率梳开展的大气湍流相位噪声和空间噪声补偿方法,以满足高精度时间和频率基准的传输要求,最后对自由空间光学时频基准传输技术的应用进行了总结和展望。

关键词：仪器,测量与计量时频基准传输自由空间光学频率梳光学链路

A Data Stream Subspace Clustering Algorithm

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国际计算机前沿大会会议论文集 2015年第1期 97-99页

作者： Xiang yu Xiandong Xu liandong Lin Department of Computer Science and Technology Heilongjiang Institute of TechnologyHarbinChina Heilongjiang Province Key Lab of Senior- Education for Electronic Engineering Heilongjiang UniversityHarbinChina

The main aim of data stream subspace clustering is to find clusters in subspace in rational time accurately. The existing data stream subspace clustering algorithms are greatly influenced by parameters. Due to the flaws of traditional data stream subspace clustering algorithms, we propose SCRP, a new data stream subspace clustering algorithm. SCRP has the advantages of fast clustering and being insensitive to outliers. When data stream changes, the changes will be recorded by the data structure named Region-tree, and the corresponding statistics information will be updated. Further SCRP can regulate clustering results in time when data stream changes. According to the experiments on real datasets and synthetic datasets, SCRP is superior to the existing data stream subspace clustering algorithms on both clustering precision and clustering speed, and it has good scalability to the number of clusters and dimensions.

关键词： data mining data stream subspace clustering feature selection dimension reduction

Parallel all-optical logic operations based on metasurface polarization optics

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Chinese Optics Letters 2023年第10期21卷 72-78页

作者：王婧汪文莉陆洋郝群于连栋 China University of Petroleum Qingdao 266580China Beijing Institute of Technology Beijing 100081China

We developed a general framework for parallel all-optical logic operations with independent phase control of arbitrary orthogonal polarization state enabled by a single-layer metasurface.A pair of orthogonal circular polarized bases are used as two input channels of the logic operator,and their four combinations perfectly match various binary input states.Correspondingly,distinct phase profiles are encoded into the metasurface,which enables parallel operation of the two logic gates by way of polarization switching.It allows for an efficient and compact way to implement multi-channel multiplexed logic gate operations with the capability of fast optical computing at the chip scale.

关键词： parallel all-optical logic operation metasurface polarization

灵芝固态发酵麦糟制备可溶性膳食纤维工艺优化

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中国酿造 2023年第7期42卷 185-189页

作者：肖连冬于海彦李慧星南阳理工学院生物与化学工程学院河南南阳473000 河南省工业微生物资源与发酵技术重点实验室河南南阳473000

以麦糟为原料,通过灵芝固态发酵麦糟制备高品质麦糟膳食纤维,研究不同工艺条件对麦糟中可溶性膳食纤维含量的影响。通过单因素试验和响应面试验考察并优化影响可溶性膳食纤维含量的因素,得到灵芝发酵制备高品质麦糟膳食纤维的最佳工艺... 详细信息

以麦糟为原料,通过灵芝固态发酵麦糟制备高品质麦糟膳食纤维,研究不同工艺条件对麦糟中可溶性膳食纤维含量的影响。通过单因素试验和响应面试验考察并优化影响可溶性膳食纤维含量的因素,得到灵芝发酵制备高品质麦糟膳食纤维的最佳工艺条件。结果表明,灵芝固态发酵麦糟制备可溶性膳食纤维的最佳工艺条件为灵芝种子培养液接种量19%,麦糟与水的料水比1∶2(g∶mL),发酵温度26℃,发酵时间11 d。在此优化条件下,可溶性膳食纤维含量最高可达8.98%。发酵后麦糟膳食纤维持水力为2.67 g/g,持油力为2.03 g/g,膨胀力为4.69 mL/g,均比原麦糟有较大程度的提高。

关键词：麦糟灵芝可溶性膳食纤维固态发酵响应面分析