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基于区域细化的Siamese网络目标跟踪算法

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传感器与微系统 2024年第6期43卷 137-140页

作者：张海鹏王亚平张宝华徐利权温海英内蒙古科技大学信息工程学院内蒙古包头014010 中国移动通信集团内蒙古有限公司内蒙古包头014010

针对快速运动导致跟踪目标尺度变化大、分辨率低等问题,提出了一种基于区域细化的Siamese网络目标跟踪算法。在Siamese网络中引入多尺度特征感知模型,有效提取深层全局通道特征和局部空间特征,准确提取判别性信息;为进一步在搜索区域增... 详细信息

针对快速运动导致跟踪目标尺度变化大、分辨率低等问题,提出了一种基于区域细化的Siamese网络目标跟踪算法。在Siamese网络中引入多尺度特征感知模型,有效提取深层全局通道特征和局部空间特征,准确提取判别性信息;为进一步在搜索区域增强前景,构建区域细化模型,利用经主干网络提取的目标区域特征对搜索区域目标进行甄别,实现由粗到细的跟踪策略,有效增强目标表征能力。将所提算法在OTB100数据集上与现有的一些跟踪算法进行测试。实验结果表明,本文算法在跟踪成功率与跟踪精度方面均取得了良好的表现。同时在低分辨率、形变、光照变化等方面表现出较强的鲁棒性。

关键词：深度学习区域细化目标跟踪 Siamese网络

Water solubility in orthopyroxene: Dependence on temperature and Al content

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Chinese Science Bulletin 2013年第32期58卷 3895-3902页

作者： zhang baohua MATSUZAKI Takuya WU XiaoPing Institute for Study of the Earth's Interior Okayama University School of Earth and Space Science University of Science and Technology of China

The water solubility in Al-Fe-Mg orthopyroxene[(Mg,Fe,Al)(Si,Al)O3:XFe=0.1]was investigated as a function of temperature and Al *** were performed at 10 kbar with temperatures ranging from 800 to 1200°C under water-saturated *** contents in the(Mg,Fe)SiO3–H2O–Al2O3system were determined using unpolarized Fourier transform infrared *** present results show that water solubility in Al-bearing orthopyroxene decreases systematically with temperature from approximately 1 weight%at 800°C to 568±58 ppm at 1200°C and increase significantly with increasing Al2O3contents under the same annealing temperature and *** with published results on the dependence of hydroxyl solubility on water fugacity and pressure,the present results can be described by the relation20.5OH H O()exp nC A T f1bar solid,R H V P T where A=0.0024±0.0015 ppm/bar0.5,1bar H=103.348±9.768 kJ/mol,andsolid V=9.2±1.1cm3/*** equation implies that the incorporation mechanism of water in aluminous orthopyroxene involves the isolated OH *** on the experimentally established solubility model used in this study,it is suggested that water solubility decreases with increasing temperature under typical upper mantle *** predicted temperature dependence of water solubility is in good agreement with the previous experimental observations in Al-bearing orthopyroxene,but the opposite dependence is observed in Al-free ***,our estimation of the water solubility in upper-mantle minerals as a function of depth for a typical oceanic geotherm might be of potential importance in interpreting the geophysical observations.

关键词：溶解度模型温度范围水饱和斜方辉石傅里叶变换红外光谱法温度依赖性 AI 实验观测

山东湿地生防菌筛选及解淀粉芽孢杆菌JQ-3的防病促生作用

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中国植保导刊 2024年第5期44卷 16-21页

作者：张淑静张淑凤杨萍肖琳曲田丽张保华牛赡光杜丰玉山东省林业科学研究院森林保护与生物药物研究所山东济南250014 青岛秾贝尔生物工程有限公司山东青岛266600 山东省莱西市水库管理服务中心山东青岛266600 青岛农业大学化学与药学院山东青岛266109

山东为湿地大省,为充分发掘湿地微生物所蕴藏的生防潜力,以耐药灰霉菌为靶标,从山东省内14处湿地累计分离到具拮抗作用的生防菌143株,其中拮抗作用较强的包括5株解淀粉芽孢杆菌、4株枯草芽孢杆菌以及较为少见的沙福芽孢杆菌、南海芽孢... 详细信息

山东为湿地大省,为充分发掘湿地微生物所蕴藏的生防潜力,以耐药灰霉菌为靶标,从山东省内14处湿地累计分离到具拮抗作用的生防菌143株,其中拮抗作用较强的包括5株解淀粉芽孢杆菌、4株枯草芽孢杆菌以及较为少见的沙福芽孢杆菌、南海芽孢杆菌各1株。选择对灰霉菌菌丝生长抑制力最强的解淀粉芽孢杆菌JQ-3,初步调查其防病促生作用,发现该菌能较好地预防葡萄果实感染灰霉病,在花生幼苗盆栽试验中表现出对白绢病的预防作用,并能促进幼苗根系生长。综上得出,山东湿地蕴藏着较丰富的生防微生物资源,本研究分离得到的解淀粉芽孢杆菌JQ-3可用于功能菌剂的开发。

关键词：山东湿地农用生防菌灰霉病花生白绢病

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面向多传感器数据融合的白酒发酵评估方法

发酵科技通讯 2024年第3期53卷 144-149页

作者：杜成成祝田田张保华张力安徽大学电子信息工程学院安徽合肥230601 安徽大学集成电路学院安徽合肥230601

针对由传统白酒固态发酵评估方法数据维度单一、可靠性低导致决策结果存在片面性和不确定性问题,提出了一种基于多传感器数据融合技术的白酒固态发酵状态评估方法。利用统计过程控制SPC方法剔除多传感器数据中偏离较大的异常数据,并以... 详细信息

针对由传统白酒固态发酵评估方法数据维度单一、可靠性低导致决策结果存在片面性和不确定性问题,提出了一种基于多传感器数据融合技术的白酒固态发酵状态评估方法。利用统计过程控制SPC方法剔除多传感器数据中偏离较大的异常数据,并以自适应加权融合算法将同类传感器数据进行局部融合,将局部融合数据利用模糊集理论建立各环境指标的隶属度函数,对得到的隶属度函数进行基本概率分配并按组合规则进行全局融合。根据决策准则,对融合结果进行判断,得到白酒固态发酵状态评估,将其与传统D-S证据理论、Sun Quan方法和Murphy方法的决策结果进行比较分析。结果表明:该方法有效综合了窖池中各环境参数的不同作用效果,提高了对白酒固态发酵状态评估的准确性,可为白酒生物发酵过程的控制与优化提供有效的技术指导。

关键词：白酒固态发酵传感器 SPC方法 D-S证据理论

Research on Test Anxiety in CET-4 of Non-English Major Freshmen

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Thermal properties of harzburgite and dunite at 0.8–3 GPa and 300–823 K and implications for the thermal evolution of Tibet

Open Journal of Applied Sciences（应用科学） 2024年第5期 1380页

作者： baohua zhang

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Geoscience Frontiers 2021年第2期12卷 947-956页

作者： Jianhua Ge baohua zhang Zili Xiong Lanfang He Heping Li Key Laboratory for High-Temperature and High-Pressure Study of the Earth’s Interior Institute of GeochemistryChinese Academy of SciencesGuiyang 550081China University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Lithospheric Evolution Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China

Thermal diffusivity(D)and thermal conductivity(κ)of harzburgite and dunite from Luobusha ophiolite were simultaneously measured up to 3 GPa and 823 K using the transient plane-source method in a multi anvil *** results show that the values of D andκof both samples systematically decrease with increasing temperature and increase with increasing *** combination of the thermal physical data of rocks and minerals and geophysical constraints,we performed numerical simulation on the thermal evolution of Tibet vary over depth,distance and geologic *** present results provide new constraints on occurrence of partial melting and its geophysical significance beneath Tibetan crust.

关键词： Thermal diffusivity Thermal conductivity Harzburgite Dunite Thermal evolution Tibet

Water lubrication of graphene oxide-based materials

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Friction 2022年第7期10卷 977-1004页

作者： Shaoqing XUE Hanglin LI Yumei GUO baohua zhang Jiusheng LI Xiangqiong ZENG Laboratory for Advanced Lubricating Materials Shanghai Advanced Research InstituteChinese Academy of SciencesUniversity of Chinese Academy of SciencesShanghai 201210China School of Environmental and Chemical Engineering Shanghai UniversityShanghai 200444China Key Laboratory for Advanced Materials School of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai 200237China

Water is as an economic,eco-friendly,and efficient lubricant that has gained widespread attention for *** graphene oxide(GO)-based materials can improve the lubricant efficacy of water lubrication due to their outstanding mechanical properties,water dispersibility,and broad application *** this review,we offer a brief introduction about the background of water lubrication and ***,the synthesis,structure,and lubrication theory of GO are *** attention is focused on the relationship between pH,concentration,and lubrication efficacy when discussing the tribology behaviors of pristine *** compounding or reacting GO with various modifiers,amounts of GO-composites are synthesized and applied as lubricant additives or into frictional pairs for different usage *** various strategies of GO-composite generate interesting effects on the tribology *** application cases of GO-based materials are described in water lubrication,including metal processing and *** advantages and drawbacks of GO-composites are then *** development of GO-based materials for water lubrication is described including some challenges.

关键词： tribology water lubrication graphene oxide(GO)

基于稀疏增强重加权与掩码块张量的红外弱小目标检测

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红外技术 2024年第3期46卷 305-313页

作者：孙尚琦张宝华李永翔吕晓琪谷宇李建军内蒙古科技大学信息工程学院内蒙古包头014010 内蒙古农业大学能源与交通工程学院内蒙古呼和浩特010018 内蒙古工业大学信息工程学院内蒙古呼和浩特010051

高度异构的复杂背景破坏了场景的低秩性,现有算法难以利用低秩稀疏恢复方法从背景中分离出小目标。为了解决上述问题,本文将小目标检测问题转化为张量模型的凸优化函数求解问题,提出基于稀疏增强重加权与掩码块张量的检测模型。首先,将... 详细信息

高度异构的复杂背景破坏了场景的低秩性,现有算法难以利用低秩稀疏恢复方法从背景中分离出小目标。为了解决上述问题,本文将小目标检测问题转化为张量模型的凸优化函数求解问题,提出基于稀疏增强重加权与掩码块张量的检测模型。首先,将掩码块图像以堆叠方式扩展至张量空间,并构建掩码块张量模型以筛选候选目标。在此基础上,利用结构张量构建稀疏增强重加权模型以抑制背景杂波,克服凸优化函数求解过程中设定加权参数的缺陷。实验表明本文检测算法在背景抑制因子及信杂比增益两方面都优于新近代表性算法,证明该算法的有效性。

关键词：小目标检测低秩稀疏恢复掩码块张量稀疏增强重加权

Phylogenetically diverse endozoic fungi in the South China Sea sponges and their potential in synthesizing bioactive natural products suggested by PKS gene and cytotoxic activity analysis

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Fungal Diversity 2013年第1期58卷 127-141页

作者： Zhisheng Yu baohua zhang Wei Sun Fengli zhang Zhiyong Li Marine Biotechnology Laboratory State Key Laboratory of Microbial Metabolism and School of Life Sciences and BiotechnologyShanghai Jiao Tong UniversityShanghai 200240People’s Republic China Eastern Hepatobiliary Surgery Hospital Second Military Medical UniversityShanghai 200438People’s Republic China School of Life Sciences and Biotechnology Shanghai Jiao Tong University800 Dongchuan RoadShanghai 200240People’s Republic China

Sponges are well documented to harbor large amounts of *** it is known that spongederived fungi are important sources for marine natural products,the phylogenetic diversity and biological function of sponge-associated fungi remain largely *** this study,the diversity of culturable endozoic fungi in sponges from the South China Sea was revealed based on the ITS phylogenetic *** the fungal potential for producing bioactive natural products was estimated according to the detection of Beta-ketosynthase in the polyketide synthase(PKS)gene cluster and cytotoxic activity *** a result,diverse fungi including 14 genera(Aspergillus,Penicillium,Scolecobasidium,Eurotium,Alternaria,Fusarium,Hypocreales,Yarrowia,Candida,Hypoxylon,Sporidiobolus,Schizophyllum,Bjerkandera,and Trichosporon)in ten orders(Xylariales,Moniliales,Pleosporales,Saccharomycetales,Hypocreales,Eurotiales,Sporidiobolales,Agaricales,Aphyllophorales and Tremellales)of phyla Ascomycota and Basidiomycota were isolated with Aspergillus as the predominant component in the culturable fungal ***,genera Schizophyllum,Sporidiobolus,and Bjerkandera in phylum Basidiomycota and genus Yarrowia in phylum Ascomycota were isolated from marine sponges for the first *** genes were detected in 12 isolates suggesting their potential for synthesizing PKS *** the 12 isolates with PKS genes,9 isolates displayed strong in vitro cytotoxic activity(***50<50μg/ml)against human cancer cell lines A549,Bel-7402,A-375 and *** study demonstrates the phylogenetically diverse endozoic fungi in South China Sea sponges,and highlights the potential of spongeassociated fungi in producing biologically active natural products.

关键词： Cytotoxic activity Fungal diversity Polyketide synthase(PKS)gene Sponge