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驱动电路一致性对光纤陀螺用SLD光源特性的影响

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中国惯性技术学报 2017年第4期25卷 518-522页

作者：殷建玲鲁军陈玉丹毛少娟刘军军械工程学院电子与光学工程系石家庄050003

针对目前同批次驱动电路对同一光源控制效果存在差异的问题,开展器件一致性对光纤陀螺用SLD光源特性影响的研究,找到影响驱动电路一致性的关键部位,并提出解决方案,从而规范驱动电路制作过程。理论分析结果表明:造成温控电路差异的因素... 详细信息

针对目前同批次驱动电路对同一光源控制效果存在差异的问题,开展器件一致性对光纤陀螺用SLD光源特性影响的研究,找到影响驱动电路一致性的关键部位,并提出解决方案,从而规范驱动电路制作过程。理论分析结果表明:造成温控电路差异的因素由大到小依次是惠斯通桥两臂电阻偏差、热敏电阻与同臂电阻偏差、正/负电源精度、运算放大器输入失调电压,以及积分电路的运放精度;造成恒流源电路差异的因素主要是指示器误差、驱动电流漂移误差和恒流源器件选配误差;通过采取元器件配对、调试、更换高精度器件等措施,可消除或大幅降低上述电路差异。试验结果证明,按照理论规范生产的驱动电路板一致性显著提高,可达到同类进口驱动电路的水平。

关键词：电路一致性 SLD光源光纤陀螺驱动电路

IDA与Doubling Fock空间上Hankel算子

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数学学报（中文版） 2023年第5期66卷 1003-1018页

作者：刘桂军王晓峰陈建军广州大学数学与信息科学学院广州510006 肇庆学院数学与统计学院肇庆526061

若1≤p,q<∞,本文研究了局部可积函数到解析函数积分距离为有限的函数构成的IDA空间及其几何理论,且利用IDA空间得到了从doubling Fock空间F_(Φ)p到doubling Lebesgue空间L_(Φ)q的Hankel算子Hg的有界性和紧性的等价刻画,其中Φ为C上... 详细信息

若1≤p,q<∞,本文研究了局部可积函数到解析函数积分距离为有限的函数构成的IDA空间及其几何理论,且利用IDA空间得到了从doubling Fock空间F_(Φ)p到doubling Lebesgue空间L_(Φ)q的Hankel算子Hg的有界性和紧性的等价刻画,其中Φ为C上不恒为零且使得△ΦdA为doubling测度的次调和函数.对0

关键词： Hankel算子 doubling Fock空间 Schatten类

Identification of a dual functional betulinic acid analog for the treatment of osteoarthritis by phenotypic screening

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Science China Life Sciences 2025年第1期68卷 300-302页

作者： Ze-Min Lin Mai Xiang Wen-Hui Wei Shu-Hui Fan Li chen Jie Wang Xiao-Qian Yang Chun-Hao Yang Shi-jun He jian-Ping Zuo Laboratory of Immunopharmacology State Key Laboratory of Drug ResearchShanghai Institute of Materia MedicaChinese Academy of Sciences School of Pharmacy University of Chinese Academy of Sciences School of Pharmacy Nanjing University of Chinese Medicine State Key Laboratory of Drug Research Department of Medicinal ChemistryShanghai Institute of Materia MedicaChinese Academy of Sciences Innovation Research Institute of Traditional Chinese Medicine Shanghai University of Traditional Chinese Medicine Experiment Center for Science and Technology Shanghai University of Traditional Chinese Medicine

Dear Editor, Phenotypic drug discovery, which observes compound effects on physiology,has given way to targeting specific molecules, but has revived by using modern methods to find drugs based on therapeutic outcomes in disease models(Vincent et al., 2022). Osteoarthritis(OA) is a prevalent chronic joint disorder, primarily affecting knee joints, with osteoclast activation due to low-grade inflammation resulting in increased bone resorption and structural changes in the joint(Katz et al.,2021).

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Comparison of drug-eluting stent and bare-mental stent in the complex small vessel intervention

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Chinese Medical Journal 2006年第7期119卷 596-600页

作者： QIAO Shu-bin HOU Qing XU Bo chen Jue LIU Hai-bo YANG Yue-jin WU Yong-jian YUAN Jin-qing WU Yuan DAI jun YOU Shi-jie ZHANG Pei GAO Zhan DOU Ke-fei QIU Hong MU Chao-wei LI jian-jun chen Ji-lin GAO Run-lin Cardiovascular Institute and Fuwai Hospital Chinese Academy ofMedical Sciences and Peking Union Medical University Beijing100037 China

Nowadays, coronary intervention has been dramatically improved in the drug-eluting stentera. The drug-eluting stent percutaneous coronary represents the dominant intervention modality beacause it significantly reduces the restenosis rate compared with bare mental stent. Such benefit was initially demonstrated in coronary vessels 3 mm or more in diameter. However, restenosis after coronary stent implantation is influenced by vessel size and length, and stent occlusion is more frequent in small vessels.

关键词： stents coronary restenosis

Transforming waste particles into valuable adsorbents via amyloid-mediated molecular engineering

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Science China Chemistry 2025年第1期68卷 317-328页

作者： Qingmin Yang jian Zhao Yujia Zhang Xingyu Zhou Hao Ren Bowen Hu Zhongli Lei Lixin chen Peng Yang School of Material and Chemical Engineering Bengbu University Anhui Provincial Engineering Laboratory of Silicon-Based Materials School of Chemistry and Chemical Engineering Northwestern Polytechnical University Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education School of Chemistry and Chemical EngineeringShaanxi Normal University Xi'an Key Laboratory of Polymeric Soft Matter School of Chemistry and Chemical Engineering Shaanxi Normal University International Joint Research Center on Functional Fiber and Soft Smart Textile School of Chemistry and Chemical EngineeringShaanxi Normal University

The high-value utilization of industrial solid waste using a facile and eco-friendly process is of great interest and significance in reducing environmental pollution and developing a green circular economy. Herein, we propose an amyloid-mediated molecular engineering strategy to transform particulate waste into valuable adsorbents for metal ions. Our method has the advantage of aqueous solution fabrication under mild conditions without the use of high-temperature hydrothermal methods and toxic chemical reagents. Amyloid-mediated molecular engineering manipulates the phase transition of bovine serum albumin(BSA)on particulate waste surfaces, resulting in a remarkable ～3.1 times improvement in the adsorption capacity of fly ash, a typical industrial solid waste for gold ions after modification with the phase-transitioned BSA(PTB). The resultant adsorption ability was 69–1,980 times higher than those of conventional and emerging adsorbent materials such as ion exchange resins, activated carbon(AC), covalent organic frameworks(COFs), and metal-organic frameworks(MOFs). We further demonstrated the application of our PTB-modified materials in the recovery of precious metals from low-grade gold ore and electronic waste leachates. Consequently, this strategy could increase the value of waste materials nearly 27 times. In addition, this method is generally extendable to other conventional industrial adsorbents such as resin, clay, and Al2O3, and enhances their adsorption capabilities at least twofold. Overall, this work provides a simple and green approach for improving the adsorption performance of solid particles, and is expected to develop into a universal strategy for transforming waste particles into high-value-added products.

关键词： amyloid-like protein aggregates surface engineering fly ash solid waste adsorption

猫小脑第Ⅶ小叶皮层-核团投射的电生理学研究

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生理学报 1989年第2期41卷 136-144页

作者：余启祥包建新王建军陈均南京大学生物系生理教研室

在三碘季铵酚制动的去大脑猫上,记录了小脑后叶的第Ⅶ小叶皮层浦肯野细胞(PC)对分别刺激顶核、间位核和齿状核的逆行场电位和逆行单位反应,以确定小脑皮层PC对这三个核团投射的空间分布。在鉴定了PC对其靶核团的投射后,用特制的模拟自... 详细信息

在三碘季铵酚制动的去大脑猫上,记录了小脑后叶的第Ⅶ小叶皮层浦肯野细胞(PC)对分别刺激顶核、间位核和齿状核的逆行场电位和逆行单位反应,以确定小脑皮层PC对这三个核团投射的空间分布。在鉴定了PC对其靶核团的投射后,用特制的模拟自然屈腕运动的刺激装置来推动猫同侧前肢的掌背,造成腕关节一次轻微的屈曲,观察该PG对这一刺激的单位反应。实验资料用电子计算机处理,作出平均诱发电位和刺激后时间直方图。本文以电生理学方法揭示,猫小脑后叶第Ⅶ小叶皮层-核团投射存在较明确的纵区分布模式,纵区之间的分界线走向有一定的弯曲,与前叶略有不同。小脑后叶皮层从中线到两侧2.8mm为顶核区(FZ);其外侧为间位核区(IZ),最大宽度约为3.5mm;齿状核区(DZ)约始于5.0mm处。这三个不同纵区的PC对外周自然屈腕刺激都有反应,但反应细胞的百分数不同,FZ有59％的PC对外周刺激有反应,IZ为84％,DZ为20％。这些结果表明后叶第Ⅶ小叶具有类似于前叶的功能分布,IZ的PC对外周刺激有更大的调制作用,提示该皮层-核团投射的纵区结构有其特定的功能意义。

关键词：皮层核团投影小脑电生理学

MixerKT:A Knowledge Tracing Model Based on Pure MLP Architecture

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Computers, Materials & Continua 2025年第1期82卷 485-498页

作者： jun Wang Mingjie Wang Zijie Li Ken chen Jiatian Mei Shu Zhang Key Laboratory of Education Informatization for Nationalities Ministry of EducationYunnan Normal UniversityKunming650000China Yunnan Key Laboratory of Smart Education Yunnan Normal UniversityKunming650000China

In the field of intelligent education,the integration of artificial intelligence,especially deep learning technologies,has garnered significant *** tracing(KT)plays a pivotal role in this field by predicting students’future performance through the analysis of historical interaction data,thereby assisting educators in evaluating knowledgemastery and tailoring instructional *** knowledge tracingmethods,largely based on Recurrent Neural Networks(RNNs)and Transformer models,primarily focus on capturing long-term interaction patterns in sequential ***,these models may neglect crucial short-term dynamics and other relevant *** paper introduces a novel approach to knowledge tracing by leveraging a pure Multilayer Perceptron(MLP)*** proposeMixerKT,a knowledge tracing model based on theHyperMixer framework,which uniquely integrates global and localMixer feature *** architecture enables more effective extraction of both long-terminteraction trends and recent learning behaviors,addressing limitations in currentmodels thatmay overlook these key *** evaluations on twowidely-used datasets,ASSIS Tments2009 and Algebra2005,demonstrate that MixerKT consistently outperforms several state-of-the-art models,including DKT,SAKT,and Separated Self-Attentive Neural Knowledge Tracing(SAINT).Specifically,MixerKT achieves higher prediction accuracy,highlighting its effectiveness in capturing the nuances of learners’knowledge *** results indicate that our model provides a more comprehensive representation of student learning patterns,enhancing the ability to predict future performance with greater precision.

关键词： Knowledge tracing multilayer perceptron channel mixer sequence mixer

Characterization and Application of Field Electron Emission from Nanomaterials

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Characterization and Application of Field Electron Emission ...

ADVANCES IN DESIGN,GROWTH AND APPLICATION OF PIEZOELECTRIC CRYSTALS WITH LANGASITE STRUCTURE

2001年纳米和表面科学与技术全国会议

作者： Ning-sheng Xu, Shao-zhi Deng, Yue chen, Zhi-shen Wu, jian chen, jun Zhou, jun chen School of Physics and Engineering, Zhongshan University, Guangzhou 510275, P.R.China

We have characterized field electron emission properties of carbon nanotubes, cupper suphild and silicon carbide nanorods. In particular, their current-voltage characteristics, current stability over time and at different current levels, field emission microscopic image and field emission electron energy distribution were studied, with

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ADVANCES IN DESIGN,GROWTH AND APPLICATION OF PIEZOELECTRIC C...