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深度学习方法在红花采摘机器人中的应用

农机化研究 2025年第4期47卷 186-191页

作者：陈金荣许燕周建平王小荣崔超新疆大学机械工程学院乌鲁木齐830047 新疆维吾尔自治区农牧机器人及智能装备工程研究中心乌鲁木齐830047 新疆大学工程训练中心乌鲁木齐830047

为实现农业复杂环境中红花的快速准确识别,提出了一种基于深度学习方法的改进YOLOv5s红花目标检测算法。在YOLOv5s基础上融入适配GPU的轻量Ghost模块,获得复杂度更低、网络推理速度更快的基线模型,将CBAM注意力机制嵌入基线模型,增强了... 详细信息

为实现农业复杂环境中红花的快速准确识别,提出了一种基于深度学习方法的改进YOLOv5s红花目标检测算法。在YOLOv5s基础上融入适配GPU的轻量Ghost模块,获得复杂度更低、网络推理速度更快的基线模型,将CBAM注意力机制嵌入基线模型,增强了小目标物在高频特征中的表现力,并通过建立一种基于边界框宽和高差值的Focal-EIoU损失函数,提高红花在不同遮挡情况下的识别率。最后,在并联式红花采摘机器人上开展红花识别试验,验证改进算法的可行性和可靠性。结果表明:改进后的YOLOv5s模型相较于原始模型在mAP值上提高了1.94个百分点,模型参数量和单幅图像检测速度分别为3.52 MB和0.06 s/幅,红花采摘机器人视觉系统的平均识别成功率可达89.92%。

关键词：红花采摘机器人深度学习 YOLOv5s 识别成功率

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The FOURIER SERIES EXPANSIONS OF FUNCTIONS DEFINED ON S-SETS

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Chinese Annals of Mathematics,Series B 1997年第2期18卷 201-212页

作者： LIANG jinrong LI WANShe SU FENG REN FUYAO Institute of Mathematics Fudan UniversityShanghai 200433China

Let E be a compact s-sets of R *** authors define an orthonormal systemΦof functions on E and obtain that,for any f(x)∈L 1(E,H s),the Fourier series of f,with respect toΦ,is equal to f(x)at H s a.e.x∈***,for any f... 详细信息

关键词： Hausdorff measure Fourier series s-set Generalized graph directed construction

In situ fastening graphene sheets into a polyurethane sponge for the highly efficient continuous cleanup of oil spills

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Nano Research 2017年第5期10卷 1756-1766页

作者： Zhuang Kong jinrong Wang Xianyong LU Ying Zhu Lei Jiang Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education School of Chemistry and Environment Beihang University Beijing 100191 China Laboratory of Bio-inspired Smart Interfacial Science Technology Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 China

Oil sorbents are an attractive option for oil-spill cleanup as they may be used for collection and complete removal of oil without adversely affecting the environment. However, traditional oil sorbents exhibit low oil/water separation efficiency and/or low oil-sorption capacity. In this study, an ultra-high performance graphene/polyurethane （PU） sponge has been successfully obtained by in situ polymerization in the presence of graphene dispersed in N-methylpyrrolidone （NMP）. During polymerization, the NMP/graphene dispersion not only serves as a weak amine catalyst for the formation of the sponge, but promotes fixation of the graphene sheets in the framework of the PU sponge owing to the strong dipole interaction between NMP and graphene. The as-prepared graphene/PU sponge was used as an absorbing material for the continuous removal of oil from oil-spill water. The graphene/PU sponge can continuously and rapidly remove oils from immiscible oil/water mixtures in corrosive solutions, including strong acids and bases, hot water, and ice water, with an excellent separation efficiency of above 99.99%. In addition, the as-prepared graphene/PU sponge was effective in separating surfactant-stabilized emulsions with a high separation efficiency of 〉99.91%.

关键词： graphene/polyurethane(PU) sponge in-situ polymerization continuous oil cleanup ultrahigh stability

Silk-derived peptide nanospirals assembled by self-propelled wormlike filaments

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Nano Research 2023年第1期16卷 1414-1420页

作者： Huijuan Wen jinrong Yao Xin Chen Shengjie Ling Zhengzhong Shao State Key Laboratory of Molecular Engineering of Polymers Advanced Material LaboratoryDepartment of Macromolecular ScienceFudan UniversityShanghai 200433China School of Physical Science and Technology ShanghaiTech University393 Middle Huaxia RoadShanghai 201210China

Swirl-like nanospiral is a common structure found in free-swimming biological systems,such as microtubules and actin filaments or slender *** is desired for artificially designed dynamic ***,the spiral formation has rarely been reported in both engineered peptides and regenerated ***,we report that such a unique assembly behavior can be achieved by using a fusion peptide consisting of a silk-derived peptide(i.e.,GAGAGAGY)and a hydrophobic,photoresponsive azobenzene(Azo)*** this fusion structure,GAGAGAGY acts as a domain that spontaneously forms an elongated filament in an aqueous solution,while Azo acts as a"light-operated switch"that can undergo photoinduced isomerization to modulate the self-propulsion forces and assembly *** this design,the critical factors that affect the assembly of Azo-GAGAGAGY filament,including(i)length and flexibility of filaments;(ii)propulsion,and(iii)excluded volume interactions force the tip of the filament to wind up,can be regulated to realize the spiral *** addition,the configurations of Azo-GAGAGAGY filaments,such as straight nanoribbons,wavy nanoribbons,single-circle spiral,and multiple-circle spiral,can be facilely mediated by changing the preparation procedure,concentration,and pH value of Azo-GAGAGAGY solution,as these changes have significant influences on self-propulsion *** findings can help in the better understanding of nonequilibrium thermodynamics and collective behavior of biological *** findings can be used as a guideline for the designs of nanoactuators,microswimmers,transformable microrobots,and intelligent drug carriers.

关键词： nanospiral silk-derived peptide self-assembly worm-like filaments photoinduced isomerization

The Tiny Zebrafish Keep Swimming Fast in the Developmental Biology Pond

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Journal of Genetics and Genomics 2012年第9期39卷 419-420页

作者： jinrong Peng Jian Zhang Anming Meng College of Animal Sciences Zhejiang UniversityHangzhou 310058China Institute of Genetics and Developmental Biology Chinese Academy of SciencesBeijing 100101China School of Life Sciences Tsinghua UniversityBeijing 100084China

In 1996,the journal Development published a special issue on zebrafish solely focusing on characterization of dozens of phenotypic mutants chosen from hundreds of mutants identified through chemical（ENU）mutagenesis by two zebrafish groups in Tubingen and *** milestone formally catapulted zebrafish to a league of genetically tractable model

关键词： life sciences

Fluid-driven seismicity in relatively stable continental regions:Insights from the February 3^(rd),2020 M_(S)5.1 Qingbaijiang isolated earthquake

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Earthquake Research Advances 2021年第1期1卷 19-24页

作者： Xinglin Lei Jianbao Sun jinrong Su Geological Survey of Japan National Institute of Advanced Industrial Science and Technology(AIST)Higashi 1-1-1TsukubaIbaraki305-8567Japan State Key Laboratory of Earthquake Dynamics Institute of GeologyChina Earthquake AdministrationBeijing100029China Earthquake Monitoring Centre Sichuan Earthquake AgencyChengdu610041China

On February 3rd,2020,an isolated MS5.1 earthquake occurred in the northern section of the Longquanshan fault *** study aims at defining the geometry of seismogenic structures of this *** detail,centroid moment tensor inversion results show that the earthquake is characterized by a focal depth of 3.8 km with no corresponding surface *** strike/dip/rake angles for the two nodal planes are 205°/54°/96°and 15°/36°/82°,*** the analyses of coseismic deformation of the surface obtained from InSAR measurements,together with the information of relocated hypocenters for a small number of aftershocks,it is concluded that a northwest-dipping nodal plane corresponds well to the source *** fault is suggested to have a length of about 2.8 km and a depth range of 2-5 km,and the centroid of the earthquake is located at 104.48°E and 30.71°***,multiple pieces of evidence indicate that this earthquake is partly driven by the overpressure effect associated with the adjacent natural gas packets,which is similar to several other moderate natural earthquakes in Sichuan Basin.

关键词： Isolated earthquake InSAR Deep fluid Fault valve Sichuan Basin

Constitutive relationship of IN690 superalloy by using uniaxial compression tests

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Rare Metals 2011年第1期30卷 81-86页

作者： SUN Chaoyang LIU jinrong LI Rui ZHANG Qingdong DONG Jianxin School of Mechanical Engineering University of Science and Technology Beijing Beijing 100083China School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China

The hot deformation behavior of IN690 superalloy was characterized in a temperature range of 1273-1473 K and a strain rate range of 0.01-10 s^-1 using uniaxial compression tests on process annealed *** constitutive relations between flow stress and effective strain,effective strain rate as well as deformation temperature were *** can be concluded that the flow stress significantly reduces with the deformation temperature of IN690 superalloy ***,there is a significant increase of flow stress when the strain rate increases from 0.1 s^-1 to 10 s^-*** on the hyperbolic-sine Arrhenius-type equation,a constitutive equation considering compensation of strain was *** activation energy and the material constants（Q,n and ln A） decrease as the deformation strain *** strain dependent term is successfully incorporated in the constitutive equation through a quartic equation.A good agreement between the experimental data and the predicted results has been achieved,indicating that the proposed constitutive equation and the methods of determing the material constants are suitable to model the high temperature deformation behavior of IN690 superalloy.

关键词： superalloys compression testing constitutive equations activation energy

Numerical Simulation on heat Transfer Enhancement of Phase Change Thermal Storage Devices for Low-middle Temperature

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Journal of Wuhan University of Technology(Materials Science) 2016年第4期31卷 799-804页

作者：孙正朱教群 zhou weibing cheng xiaomin zhu jinrong School of Materials Scienceand Engineering Wuhan University of Technology Wuhan 430070 China

Using Ba（OH）2·8H2O as phase change material（PCM） and water as heat transfer fluid（HTF）,we numerically simulated annular finned-tube heat *** order to measure and analyze the impact of parameters in the heating/cooling process,temperature changes of different monitoring points,fin widths,and fin pitches as key parameters were considered and *** experimental results show that the heat exchange process can be divided into three stages within a certain *** faster heat transfer rate is associated with the greater temperature difference between PCM and ***,fins width and pitch affect dramatically the heat charging/discharging *** large fins width or small fins pitch is beneficial for extending the heat exchange surface,leading to improve heat transfer efficiency.

关键词： heating pitch faster charging annular melting numerically dramatically vertically encapsulation

The construction of a lymphoma cell-based, DC-targeted vaccine, and its application in lymphoma prevention and cure

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Bioactive Materials 2021年第3期6卷 697-711页

作者： Tianlin Zhou jinrong Penga Ying Hao Kun Shi Kai Zhou Yun Yang Chengli Yang Xinlong he Xinmian Chen Zhiyong Qian State Key Laboratory of Biotherapy and Cancer Center West China HospitalSichuan Universityand Collaborative Innovation Center of BiotherapyChengdu610041PR China Personalized Drug Therapy Key Laboratory of Sichuan Province Department of pharmacySichuan Provincial People’s HospitalSchool of MedicineUniversity of Electronic Science and Technology of ChinaChengdu610072PR China

In recent years,Non-Hodgkin lymphoma(NHL)has been one of the most fast-growing malignant tumor *** poses severe damages to physical health and a heavy burden to *** therapies(chemotherapy or radiotherapy)bring some benefit to patients,but have severe adverse effects and do not prevent *** relevance of emerging immunotherapy options(immune-checkpoint blockers or adoptive cellular methods)for NHL remains uncertain,and more intensive evaluations are *** this work,inspired by the idea of vaccination to promote an immune response to destroy tumors,we used a biomaterial-based strategy to improve a tumor cell-based vaccine and constructed a novel vaccine named Man-EG7/CH@CpG with antitumor *** this vaccine,natural tumor cells are used as a vector to load CpG-ODN,and following lethal irradiation,the formulations were decorated with *** study of the characterization of the doubleimproved vaccine evidenced the enhanced ability of DCs targeting and improved immunocompetence,which displayed an antitumor *** the lymphoma prevention model,the Man-EG7/CH@CpG vaccine restrained tumor formation with high ***,unlike the non-improved vaccine,the double-improved vaccine elicited an enhanced antitumor effect in the lymphoma treatment ***,to improve the moderate therapeutic effect of the mono-treatment method,we incorporated a chemotherapeutic drug(doxorubicin,DOX)into the process of vaccination and devised a combination ***,a tumor inhibition rate of~85%was achieved via the combination therapy,which could not be achieved by mono-chemotherapy or *** summary,the strategy presented here may provide a novel direction in the establishment of a tumor vaccine and is the basis for a prioritization scheme of immuno-chemotherapy in enhancing the therapeutic effect on NHL.

关键词： Non-hodgkin lymphoma DCs targeting Man-EG7/CH@CpG vaccine Combinational therapy