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基于多元LDPC码译码算法研究的Qt设计与实现

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电声技术 2015年第11期39卷 66-69页

作者：惠娟王中训武文强高兴龙烟台大学光电信息科学技术学院山东烟台264005

为了实现Qt对多元LDPC码译码算法理论测试的界面操控,在多元LDPC码译码算法研究的基础上设计了Qt程序,用Matlab实现基本仿真,将其编译成可供Qt调用的动态链接库文件(dll)并进行调用,最终实现了该Qt界面对译码理论测试的直观操控,并进一... 详细信息

为了实现Qt对多元LDPC码译码算法理论测试的界面操控,在多元LDPC码译码算法研究的基础上设计了Qt程序,用Matlab实现基本仿真,将其编译成可供Qt调用的动态链接库文件(dll)并进行调用,最终实现了该Qt界面对译码理论测试的直观操控,并进一步分析了译码数据。

关键词：多元LDPC码 Matlab仿真 Qt界面动态链接库

Path loss of non-line-of-sight ultraviolet light communication channel in polydisperse aerosol systems

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Optoelectronics Letters 2022年第3期18卷 158-165页

作者： MA Yuzhao JIA Huiting gao Huiliang XIONG xinglong Tianjin Key Laboratory for Advanced Signal Processing Civil Aviation University of ChinaTianjin 300300China College of Electronic Information and Automation Civil Aviation University of ChinaTianjin 300300China

Performance of non-line-of-sight(NLOS) ultraviolet(UV) communication is closely related with the system geometry, the communication range, and the atmospheric parameters. In this paper, we implement a full numerical analysis of the relations of path loss of NLOS UV communication with these factors using the Mie scattering theory and the Monte-Carlo method. In the numerical simulations, the actual polydisperse aerosol systems are used as the transmission medium. Since for the actual aerosol systems the atmosphere conditions may be similar within a short period, the path loss may be exclusively determined by the atmosphere visibility. Hence, we build a relation between the path loss of the communication channel and the atmosphere visibility. Simulation results reveal that for a relatively small communication range, the path loss increases with the visibility. On the other hand, low elevation of the transceiver may reduce the path loss. Our simulation results are useful for the evaluation of performance of the real NLOS UV communication systems.

关键词： communication channel scattering

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基于Qt的无线测试系统

电声技术 2017年第11期41卷 95-98页

作者：高兴龙贺鹏飞李向昭孙军文吕鹏烟台大学光电学院山东烟台264005

在深入讨论Qt绘图模块和Socket通信模块的基础上,开发出一套简单易用的无线测试系统,提供联网控制、信息传输、图形显示等基本操作,操作简单,使用方便,可移植性强。

关键词： Qt Charts Qt QUdp Socket 无线测试系统

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一种评价一侧采空巷道稳定性的新方法

山东矿业学院学报 1998年第3期17卷 290-294页

作者：王同旭马其华李正龙高洪亮山东矿业学院采矿工程系兴隆庄煤矿

一侧采空巷道稳定性不仅与支承压力分布有关，而且与煤体受破坏程度有关。本文提出了能综合反映上述两方面影响的“等效稳定性系数法”，并推导给出了等效稳定性系数的计算式。

关键词：采空巷道稳定性评价等效稳定性系数矿井

Optical emission spectroscopy diagnosis of energetic Ar ions in synthesis of SiC polytypes by DC arc discharge plasma

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Nano Research 2018年第3期11卷 1470-1481页

作者： Jian gao Lei Zhou Jingshuang Liang Ziming wang Yue Wu Javid Muhammad xinglong Dong Shouzhe Li Hongtao yu Xie Quan Key Laboratory of Materials Modification by Laser Ion and Electron Beams (Ministry of Education) School of Materials Science and Engineering Dalian University of Technology Dalian 116024 China School of Physics Dalian University of Technology Dalian 116024 China Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education) School of Environmental Science and Technology Dalian University of Technology Dalian 116024 China

Silicon carbides are basilic ceramics with proper bandgaps （2.4-3.3 eV） and unique optical properties. SiC@C monocrystal nanocapsules with different morphologies, sizes, and crystal types were synthesized via the fast and facile direct current （DC） arc discharge plasma method. The influence of Ar atmosphere on the formation of nanocrystal SiC polytypes was investigated by optical emission spectroscopy （OES） diagnoses on the arc discharge plasma. Boltzmann＇s plot was used to estimate the temperatures of plasma containing different Ar concentrations as 10,582 K （in 2 × 10^4 Pa of Ar partial pressure） and 14,523 K （in 4 × 10^4 Pa of Ar partial pressure）. It was found that higher energy state of plasma favors the ionization of carbon atoms and promotes the formation of α-SiC, while β-SiC is generally coexistent. Heat-treatment in air was applied to remove the carbon species in as-prepared SiC nanopowders. Thus, the intrinsic characters of SiC polytypes reappeared in the ultraviolet-visible （UV-vis） light absorbance. It was experimentally revealed that the direct bandgap of SiC is 5.72 eV, the indirect bandgap of β-SiC （3C） is 3.13 eV, and the indirect bandgap of α-SiC （6H） is 3.32 eV; visible quantum confinement effect is predicted for these polytypic SiC nanocrystals.

关键词： SiC polytype nanostructures direct current (DC) arcdischarge plasma optical emission spectroscopy(OES)

Interface evolution in the platelet-like SiC@C and SiC@ SiO2 monocrystal nanocapsules

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Nano Research 2017年第8期10卷 2644-2656页

作者： Jian gao Jieyi Yu Lei Zhou Javid Muhammad xinglong Dong Yinong Wang Hongtao Yu Xie Quan Shaojie Li Youngguan Jung Key Laboratory of Materials Modification by Laser Ion and Electron Beams (Ministry of Education) School of Materials Science and Engineering Dalian University of Technology Dalian 115023 China Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education) School of Environmental Science and Technology Dalian University of Technology Dalian 116024 China InstrumentalAnalysis and Research Center Dalian University of Technology Panjin 124221 China Department of Mechanical Engineering Kumoh National Institute of Technology Daeharkro 53 Gumi Gyeong-Buk 730-701 Republic of Korea

Carbon-coated SiC@C nanocapsules （NCs） with a hexagonal platelet-like morphology were fabricated by a simple direct current （DC） arc-discharge plasma method. The SiC@C NCs were monocrystalline, 120-150 nm in size, and approximately 50 nm thick. The formation of the as-prepared SiC@C NCs included nucleation of truncated octahedral SiC seeds and subsequent anisotropic growth of the seeds into hexagonal nanoplatelets in a carbon-rich atmosphere. The disordered carbon layers on the SiC@C NCs were converted into SiO2 shells of SiC@SiO2 NCs by heat treatment at 650 ℃ in air, during which the shape and inherent characteristics of the crystalline SiC core were obtained. The interface evolution from carbon to SiO2 shells endowed the SiC@SiO2 NCs with enhanced photocatalytic activity due to the hydrophilic and transparent nature of the SiO2 shell, as well as to the photosensitive SiC nanocrystals. The band gap of the nanostructured SiC core was determined to be 2.70 eV. The SiC@SiO2 NCs degraded approximately 95% of methylene blue in 160 min under visible light irradiation.

关键词： silicon carbide silicon oxide nanocapsule monocrystal photocatalyst

Molecular phylogeny and ultrastructure of a new population of Urostyla grandis(Ciliophora, Hypotrichida) from Harbin, China

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Journal of Oceanology and Limnology 2019年第1期37卷 256-265页

作者： CAI xinglong CHEN Ying ZHAO Xiaolu gao Jing Saleh A. AL-FARRAJ YU Lijie PAN Xuming QIU Zijian Laboratory of Protozoology Harbin Normal University Institute of Evolution & Marine Biodiversity Ocean University of China Zoology Department College of Science King Saud University

A new population of Urostyla grandis, collected from a freshwater pond of northeastern China was investigated by living observation, silver impregnation, and molecular phylogeny based on small subunit ribosomal rRNA(SSU rRNA). Besides, its ultrastructural characteristics were investigated carefully by scanning electron microscopy(SEM) and transmission electron microscopy(TEM) *** descriptions of some inner ultrastructures were provided and some new organelles were also found. Especially, the oral inner microtubule system was illustrated by SEM and TEM for the ?rst time and a new type extrusome was reported. These results may supply complement taxonomic data and ingestion mechanism on ciliates in genus Urostyla.

关键词： Urostyla grandis phylogeny ultrastructure new population

“畅气通络”手法联合针刺百会穴治疗颈椎病的效果及对血流速度的影响

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中国医药导报 2017年第16期14卷 82-85,113页

作者：凌耀权杨仁轩邓聪廖醒龙高洁郭程湘余葆楠王伟聪广东省中医院珠海医院康复科广东珠海519015 广东省珠海市第二中医院康复科广东珠海519125 广东省郭氏医学保健研究所广东广州510120

目的研究"畅气通络"手法联合针刺百会穴治疗椎动脉型颈椎病的效果及对血流速度的影响。方法选取广东省中医院珠海医院康复科2014年10月~2016年10月收治的90例椎动脉型颈椎病患者为研究对象,将患者抽签随机分为实验组与对照组,每组45例... 详细信息

目的研究"畅气通络"手法联合针刺百会穴治疗椎动脉型颈椎病的效果及对血流速度的影响。方法选取广东省中医院珠海医院康复科2014年10月~2016年10月收治的90例椎动脉型颈椎病患者为研究对象,将患者抽签随机分为实验组与对照组,每组45例。实验组给予"畅气通络"手法联合针刺百会穴治疗,对照组给予基础西药治疗。比较两组治疗前后症状积分、颈椎活动度,以及左侧椎动脉、右侧椎动脉、基底动脉的平均血流速度(Vm)。结果治疗后,两组头痛、眩晕、耳鸣、视物不清、颈痛等症状积分均较治疗前显著降低(P<0.05),且实验组治疗后头痛、眩晕、耳鸣、视物不清、颈痛等症状积分均明显低于对照组,差异有统计学意义(P<0.05)。治疗后,两组颈椎活动度均较治疗前提高(P<0.05),且实验组治疗后颈椎活动度明显高于对照组,差异有统计学意义(P<0.05)。两组左侧椎动脉、右侧椎动脉及基底动脉Vm均较治疗前提高(P<0.05),且治疗后实验组左侧椎动脉、右侧椎动脉及基底动脉Vm均明显高于对照组,差异有统计学意义(P<0.05)。结论 "畅气通络"手法联合针刺百会穴治疗椎动脉型颈椎病效果显著,可明显提高颈椎活动度,缓解患者临床症状,其主要作用机制可能与提高椎动脉及基底动脉Vm有关。

关键词：颈椎病畅气通络针刺百会穴血流速度

Collagen scaffolds modified with collagen-binding bFGF promotes the neural regeneration in a rat hemisected spinal cord injury model

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Science China(Life Sciences) 2014年第2期57卷 232-240页

作者： SHI Qin gao Wei HAN xinglong ZHU XueSong SUN Jie XIE Fang HOU XiangLin YANG HuiLin DAI JianWu CHEN Liang Orthopedic Department the First Affiliated Hospital of Soochow University Orthopedic Department the Sixth People's Hospital of Hangzhou Division of Nanobiomedicine Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of Sciences Pathological Department Medical School of Soochow University State Key Laboratory of Molecular Developmental Biology Institute of Genetics and Developmental BiologyChinese Academy of Sciences

Nerve conduit is one of strategies for spine cord injury(SCI)***,studies showed that biomaterials could guide the neurite growth and promote axon regeneration at the injury ***,the scaffold by itself was difficult to meet the need of SCI functional *** basic fibroblast growth factor(bFGF)administration significantly promotes functional recovery after organ ***,using a rat model of T9 hemisected SCI,we aimed at assessing the repair capacity of implantation of collagen scaffold(CS)modified by collagen binding bFGF(CBD-bFGF).The results showed that CS combined with CBD-bFGF treatment improved survival rates after the lateral hemisection *** CS/CBD-bFGF group showed more significant improvements in motor than the simply CS-implanted and untreated control group,when evaluated by the 21-point Basso-Beattie-Bresnahan(BBB)score and footprint *** hematoxylin and eosin(H&E)and immunohistochemical staining of neurofilament(NF)and glial fibrillary acidic protein(GFAP)demonstrated that fibers were guided to grow through the *** findings indicated that administration of CS modified with CBD-bFGF could promote spinal cord regeneration and functional recovery.

关键词： collagen scaffold basic fibroblast growth factor spinal cord injury nerve regeneration