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Dynamical complexity of Anosov systems driven by a quasi-periodic force

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Science China Mathematics 2025年第1期 89-136页

作者： Wen Huang Zeng Lian Kening lu Department of Mathematics University of Science and Technology of China School of Mathematics Sichuan University

Consider C2Anosov systems on a compact manifold driven by a quasi-periodic *** study their dynamical complexity on various levels from the perspectives of both path-wise dynamics and stochastic *** that these systems are non-wandering（i.e.,every point in the phase space is nonwandering）,we prove a set of results:（1） the existence of abundance of random periodic points;（2） a random Liv?ic theorem;（3） a random Ma?é-Bousch-Conze-Guivarc'h lemma;（4） the existence of strong random ***,a concrete example constructed on a 2-dimensional torus is also given to uncover some interesting phenomena of the systems.

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Treatment of Wet FGD Wastewater by a Modified Chemical Precipitation Method Using a Solid Powder Reagent

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Transactions of Tianjin University 2017年第2期23卷 110-121页

作者： yong kang Jia lu Jing Guo School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300072 China

This research focused on developing a modified chemical precipitation (MCP) method for treating wet flue gas desulfurization (FGD) waste water by adding a solid powder reagent directly. Simulated wet FGD wastewater was treated by MCP method in simulation experiments. Optimization experiments were carried out with the help of response surface methodology (RSM) and central composite design (CCD) to evaluate the effects and the interactions of experimental variables, including reagent dosage, temperature and pH value. The optimal reagent dosage, temperature and pH value were 3018.0 mg/L, 40.5 °C and 5.7, respectively. The RSM was demonstrated as an appropriate approach for the optimization of wet FGD wastewater treatment with the MCP method. A comparative study between the MCP method and the traditional chemical precipitation (TCP) method on raw wet FGD wastewater treatment was conducted. Results indicate that the MCP had less reagent dosage and variety than the TCP method had. Thus, the MCP method had a lower cost. © 2017, Tianjin University and Springer-Verlag Berlin Heidelberg.

关键词： Charge coupled devices pH Transmission control protocol Wastewater treatment

Development of amplified consensus genetic markers in Taxodiaceae based on Cryptomeria japonica ESTs data

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Journal of Forestry Research 2013年第3期24卷 503-508页

作者： lu yong-quan JIA Qing TONG Zai-kang The Nurturing Station for the State Key Laboratory of Subtropical Silviculture Zhejiang Agriculture and Forestry University

Amplified consensus genetic marker （ACGM） is a PCR-based marker technique that uses primers designed within conserved regions of coding sequences. After a comparison of Cryptomeria japonica and Arabidopsis ESTs to search for conserved sequences, 237 single e-PCR products were obtained. We randomly selected 110 candidate ACGM markers to test. Of the 110 candidate ACGM markers tested, 106 yielded stable and clear PCR products in C. japonica. We then tested the utility of these 106 primer pairs in 10 species, representing 7 genera of Taxodi- aceae. The number of specific amplification primer pairs among those 10 species varied from 49 to 103 （or 46.2±97.2%）. The 106 primer pairs （ACGM loci） were high transferable to Cryptomeria fortunei Hooibrenk （97.2%） but were low in Metasequoia glyptostroboides （46.2%）. The number of PCR bands per primer pair ranged from 1.06 to 1.15, which means that most of the ACGM primers can obtain a single band within these 10 Taxodiaceae species. In summary, our study shows that ACGM is a technique applicable for marker development even in species with limited sequence data.

关键词： ACGM Taxodiaceae Cryptomeriajaponica EST database

Cloning and sequence analysis of nine novel MYB genes in Taxodiaceae plants

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Journal of Forestry Research 2014年第4期25卷 795-804页

作者： yong-quan lu Qing JIA Zai-kang TONG The Nurturing Station for the State Key Laboratory of Subtropical Silviculture Zhejiang Agriculture and Forestry University

Myeloblastosis （MYB） is one of the largest transcribed factor families in plants. To gain an overall picture of the evolution of MYB genes in relict plants, we cloned nine novel MYB genes in Taxodiaceae plants （ Taxodium distichum, Taxodium ascendens, Cryptomeria japonica var. Sinensis, Cryptomeria japonica cv. Araucarioides, Cryptomer Ja- ponica, Metasequoia glyptostroboides, Cunninghamia lanceolata, Tai- wania cryptomerioides and Glyptostrobus pensilis）. The deduced amino acid sequences for MYBs showed that the nine MYB proteins contained two DNA binding domains. The first domain is from amino acid position 29 to 78, wherein three tryptophanes at 33, 53 and 73 were separated by 19 amino acids, respectively. The second domain is from amino acid position 82 to 127, wherein three tryptophanes at 86, 105 and 124 were separated by 18 amino acids, respectively, whereas the first tryptophane at amino acid position 86 is replaced by a phenylalanine. The characteri- zation of these conserved domains at nine MYBs indicated that they all belong to the R2R3-MYB group. The secondary structure analysis showed that a-helix and 13-turn are the major motifs of the predicted secondary structure of MYBs. The three dimensional model of each MYB protein showed that the structure is like clip, making it more flexi- ble and mobile. The similarities between the nine MYB proteins in Taxodiaceae were calculated. The highest identical value of 99% is be- tween CjsMYB, CjMYB and CjaMYB, whereas the lowest value of 82% is between TaMYB and C1MYB. According to the phylogenetic tree, the distances between different genera were relatively large whereas those within genera were relatively small. As expected, accessions of the same genus formed a subgroup before being grouped with other genera.

关键词： Myeloblastosis Taxodiaceae clone analysis R2R3-MYB group

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一款开关同步检波电路的设计

电子器件 2008年第6期31卷 1844-1846,1850页

作者：张晓飞董浩斌鲁永康常莉中国地质大学机械与电子信息学院武汉430074

阐述了开关式同步检波电路的总体结构及各模块的功能特点,对开关式同步检波电路的实现进行了论述。在用分立元件组成的低噪声前置放大器的基础上,利用电压比较器AD790及模拟开关74HC4053的高速特性设计与制作了一款开关式同步检波电路,... 详细信息

阐述了开关式同步检波电路的总体结构及各模块的功能特点,对开关式同步检波电路的实现进行了论述。在用分立元件组成的低噪声前置放大器的基础上,利用电压比较器AD790及模拟开关74HC4053的高速特性设计与制作了一款开关式同步检波电路,对电路的测试结果表明,电路具有动态范围大、良好的线性及较小的测量误差,对检测微弱信号的下限可达1μV,是一种性能良好的相敏检波电路,适用于对低频微弱信号的检测。

关键词：高速电压比较器高速模拟开关开关式同步检波器低噪声前置放大器相敏检波

四君子汤调节大鼠肠道菌群改善心肌肥厚诱导心力衰竭的研究

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现代中药研究与实践 2020年第5期34卷 29-33页

作者：卢永康陈窕圆庄贤勉黄彬中国医学科学院阜外医院深圳医院冠心病中心广东深圳518000 深圳市中医院脾胃科广东深圳518000

目的基于四君子汤调节肠道菌群失衡的作用,探讨其治疗心肌肥厚诱导心力衰竭大鼠的效果。方法雄性大鼠分为假手术组、模型组、四君子汤组及益生菌组,通过缩窄腹主动脉制备心肌肥厚诱导心力衰竭的大鼠模型。给药前后均以超声评价心功能,... 详细信息

目的基于四君子汤调节肠道菌群失衡的作用,探讨其治疗心肌肥厚诱导心力衰竭大鼠的效果。方法雄性大鼠分为假手术组、模型组、四君子汤组及益生菌组,通过缩窄腹主动脉制备心肌肥厚诱导心力衰竭的大鼠模型。给药前后均以超声评价心功能,给药后以高通量测序检测肠道菌群的变化,以及马松染色评估心肌肥厚。结果给药后,与模型组相比,四君子汤组肠道菌群失衡明显改善,表现为优势菌群增加,非优势菌群降低,并且心功能与心肌肥厚均明显改善。结论四君子汤能够通过调节肠道菌群失衡,对心肌肥厚所诱导的心力衰竭发挥一定的治疗作用。

关键词：心力衰竭心肌肥厚肠道菌群四君子汤

Ni/γ-Al_2O_3催化剂上甲烷水蒸气重整制合成气

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应用化工 2009年第2期28卷 157-159,173页

作者：赵云莉鲍卫仁吕永康王建成太原理工大学煤科学与技术教育部和山西省重点实验室山西太原030024

采用固定床装置,考察了负载型Ni系列催化剂及反应条件对Ni/γ-Al2O3催化剂的甲烷水蒸气重整反应的影响,并利用XRD和TPR技术对催化剂样品进行表征。结果表明,在空速1 800 h-1,n(H2O)∶n(CH4)∶n(N2)=2.86∶1∶3.28,反应温度700℃的条件下... 详细信息

采用固定床装置,考察了负载型Ni系列催化剂及反应条件对Ni/γ-Al2O3催化剂的甲烷水蒸气重整反应的影响,并利用XRD和TPR技术对催化剂样品进行表征。结果表明,在空速1 800 h-1,n(H2O)∶n(CH4)∶n(N2)=2.86∶1∶3.28,反应温度700℃的条件下,催化剂Ni含量在9%时反应性能最佳,可得到94.3%的CH4转化率和64.9%的CO选择性。

关键词：甲烷水蒸气合成气 Ni催化剂重整

Ru doping triggering reconstruction of cobalt phosphide for coupling glycerol electrooxidation with seawater electrolysis

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Journal of Energy Chemistry 2025年第1期100卷 317-326页

作者： Binglu Deng Jie Shen Jinxing lu Chuqiang Huang Zhuoyuan Chen Feng Peng Yunpeng Liu School of Materials Science and Hydrogen Energy Foshan University School of Chemistry and Chemical Engineering Guangzhou University Guangdong Key Laboratory for Hydrogen Energy Technologies

Seawater electrolysis is a promising approach for sustainable energy without relying on precious ***,the large-scale seawater electrolysis is hindered by low catalytic efficiency and severe anode corrosion caused by the harmful *** contrast to the oxygen evolution reaction （OER）and chlorin ion oxidation reaction （ClOR）,glycerol oxidation reaction （GOR） is more thermodynamically and kinetically favorable ***,a Ru doping cobalt phosphide （Ru-CoP2） is proposed as a robust bifunctional electrocatalyst for seawater electrolysis and GOR,for the concurrent productions of hydrogen and value-added *** in situ and ex situ characterization analyses demonstrated that Ru doping featured in the dynamic reconstruction process from Ru-CoP2to Ru-CoOOH,accounting for the superior GOR *** coupling GOR with hydrogen evolution was realized by employing Ru-CoP2as both anode and cathode,requiring only a low voltage of 1.43 V at 100 mA cm-2,which was 250 m V lower than that in alkaline *** work guides the design of bifunctional electrocatalysts for energy-efficient seawater electrolysis coupled with biomass resource upcycling.

关键词： Glycerol electrooxidation Hydrogen evolution Ru doping Cobalt phosphide Bifunctional electrocatalysts

A quantum-search-based multi-classifier for image recognition

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 21-31页

作者： lu Liu Xingyu Wu lufan Zhang Chuan Wang School of Artificial Intelligence Beijing Normal University Applied Optics Beijing Area Major Laboratory Beijing Normal University

The multi-class classification of images is a pivotal challenge within the realm of image processing. As the volume of visual data continues to expand, there is a burgeoning interest in harnessing the unique capabilities of quantum computation to augment the efficiency of classification tasks. However, many existing methods for training quantum image multi-classifiers parallel classical machine learning techniques, where the requisite circuit measurements increase linearly with the volume of training data. This work introduces a novel approach for training a quantum image multi-classifier based on the quantum search algorithm. We have meticulously conducted rigorous experiments on a handwritten digit dataset, a classic benchmark in the field. The results have been meticulously compared with previous works, and the comparative analysis not only validates the efficiency of our proposed approach, requiring only O(N/b) measurements during training, but also highlights a significant quadratic speedup of the algorithm.

关键词： quantum computation image recognition quantum search algorithm