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立式轴流大豆育种脱粒机参数优化

农业工程学报 2012年第5期28卷 19-25页

作者：侯守印陈海涛东北农业大学工程学院哈尔滨150030

为寻求对立式轴流大豆育种专用脱粒机的脱粒、分离与清选性能影响的结构与工作参数最优组合,对其进行了参数优化试验。采用二次回归正交旋转中心组合优化试验方法,以滚筒线速度、脱粒间隙、喂入量和植株体积含水率为影响因素,含杂率、... 详细信息

为寻求对立式轴流大豆育种专用脱粒机的脱粒、分离与清选性能影响的结构与工作参数最优组合,对其进行了参数优化试验。采用二次回归正交旋转中心组合优化试验方法,以滚筒线速度、脱粒间隙、喂入量和植株体积含水率为影响因素,含杂率、破碎率、未脱净率、夹带损失率、飞溅损失率和沉积率为目标函数,对影响该机脱粒性能的结构与工作参数进行优化试验研究。结果表明:当植株体积含水率14%～20%,滚筒线速度6.5～8.3m/s,脱粒间隙为15mm,喂入量为2.4kg/min时,含杂率低于0.5%,破碎率低于1%,未脱净率低于2%,夹带损失率低于0.7%,飞溅损失率与沉积率为零。该研究可为立式轴流大豆育种专用脱粒机的产品定型设计提供依据。

关键词：试验优化育种立式轴流脱粒机大豆

Waveguide-integrated optical modulators with two-dimensional materials

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Journal of Semiconductors 2023年第11期44卷 8-25页

作者： haitao chen Hongyuan Cao Zejie Yu Weike Zhao Daoxin Dai State Key Laboratory for Modern Optical Instrumentation College of Optical Science and EngineeringInternational Research Center for Advanced PhotonicsZhejiang UniversityZijingang CampusHangzhou 310058China College of Advanced Interdisciplinary Studies&Hunan Provincial Key Laboratory of Novel Nano-Optoelectronic Information Materials and Devices National University of Defense TechnologyChangsha 410073China Nanhu Laser Laboratory National University of Defense TechnologyChangsha 410073China Ningbo Research Institute Zhejiang UniversityNingbo 315100China

Waveguide-integrated optical modulators are indispensable for on-chip optical interconnects and optical *** cope with the ever-increasing amount of data being generated and consumed,ultrafast waveguide-integrated optical modulators with low energy consumption are highly *** recent years,two-dimensional(2D)materials have attracted a lot of attention and have provided tremendous opportunities for the development of high-performance waveguide-integrated optical modulators because of their extraordinary optoelectronic properties and versatile *** paper reviews the state-of-the-art waveguide-integrated optical modulators with 2D materials,providing researchers with the developing trends in the field and allowing them to identify existing challenges and promising potential ***,the concept and fundamental mechanisms of optical modulation with 2D materials are ***,a review of waveguide-integrated optical modulators employing electro-optic,all-optic,and thermo-optic effects is ***,the challenges and perspectives of waveguide-integrated modulators with 2D materials are discussed.

关键词： optical modulation two-dimensional(2D)materials on-chip waveguide

D53 represses rice blast resistance by directly targeting phenylalanine ammonia lyases

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Journal of Integrative Plant Biology 2024年第9期66卷 1827-1830页

作者： haitao Ye Qingqing Hou haitao Lv Hui Shi Duo Wang Yujie chen Tangshuai Xu Mei Wang Min He Junjie Yin Xiang Lu Yongyan Tang Xiaobo Zhu Lijuan Zou Xuewei chen Jiayang Li Bing Wang Jing Wang State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China Sichuan Agricultural UniversityChengdu 611130China Key Laboratory of Seed Innovation Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China Yazhouwan National Laboratory Sanya 572024China

Phytohormones play important roles in orchestrating plantimmune responses to pathogen ***(SLs),a group of carotenoid-derived phytohormones,modulate diverse biological processes in plants,including shoot branching,plant height,root architecture,leaf senescence,seed germination of parasitic plants,and symbiosis of arbuscular mycorrhizal fungi(Burger and Chory,2020).Recently,increasing evidence has indicated potential roles for SLs in regulating responses against biotic stresses,including defense responses against certain pathogenic fungi and bacteria in roots and leaves(Yi et al.,2023).

关键词： ammonia resistance branching

杀菌型水稻秸秆纤维基地膜制造工艺参数优化研究

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农业工程学报 2019年第11期35卷 306-314页

作者：陈海涛陈双超刘爽东北农业大学工程学院

为提高农药有效利用率、减少农药使用量,对负载广谱杀菌剂多菌灵的杀菌型水稻秸秆纤维基地膜制造工艺参数组合进行了优化研究。应用四因素五水平二次正交旋转中心组合试验方法,以湿强剂、施胶剂、胶黏剂浓度和涂层厚度为影响因子,选择... 详细信息

为提高农药有效利用率、减少农药使用量,对负载广谱杀菌剂多菌灵的杀菌型水稻秸秆纤维基地膜制造工艺参数组合进行了优化研究。应用四因素五水平二次正交旋转中心组合试验方法,以湿强剂、施胶剂、胶黏剂浓度和涂层厚度为影响因子,选择杀菌型水稻秸秆纤维基地膜的干抗张力、湿抗张力、透气度、降解周期、农药有效利用率为响应函数,实施了组合试验,结果表明:当工艺参数组合为湿强剂质量分数0.8%~0.9%、施胶剂质量分数0.5%~0.7%、胶黏剂浓度2.0%、涂布厚度20μm时,杀菌型水稻秸秆纤维基地膜干抗张力≥35 N、湿抗张力≥15 N、透气度≤2μm/(Pa·s)、降解周期≥60 d、农药有效利用率≥80%。研究结果表明该地膜不仅提高了秸秆纤维基地膜的各项性能指标且增加了秸秆纤维基地膜的杀菌功能,而且为广谱杀菌剂多菌灵增效减量和广谱杀菌型水稻秸秆纤维基地膜的研发提供了参考依据。

关键词：农药膜秸秆杀菌优化

Doping bioactive elements into a collagen scaffold based on synchronous self-assembly/mineralization for bone tissue engineering

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Bioactive Materials 2020年第4期5卷 844-858页

作者： Huanhuan Liu Mingli Lin Xue Liu Ye Zhang Yuyu Luo Yanyun Pang haitao chen Dongwang Zhu Xue Zhong Shiqing Ma Yanhong Zhao Qiang Yang Xu Zhang School of Stomatology Hospital of StomatologyTianjin Medical UniversityTianjin300070China Department of Stomatology Zhongshan Hospital of Xiamen UniversityXiamenFujian361004China The Third Central Clinical College of Tianjin Medical University Tianjin300170China Department of Spine Surgery Tianjin HospitalTianjin300211China Institute of Stomatology Tianjin Medical UniversityTianjin300070China

Pure collagen is biocompatible but lacks inherent osteoinductive,osteoimmunomodulatory and antibacterial *** obtain collagen with these characteristics,we developed a novel methodology of doping bioactive elements into collagen through the synchronous self-assembly/mineralization(SSM)of *** the SSM model,amorphous mineral nanoparticles(AMN)(amorphous SrCO3,amorphous Ag3PO4,etc.)stabilized by the polyampholyte,carboxymethyl chitosan(CMC),and collagen molecules were the primary components under acidic *** the pH gradually increased,intrafibrillar mineralization occurred via the self-adaptive interaction between the AMNs and the collagen microfibrils,which were self-assembling;the AMNs wrapped around the microfibrils became situated in the gap zones of collagen and finally transformed into *** collagen scaffolds(Sr-CS)promoted in vitro cell proliferation and osteogenic differentiation of rat bone marrow mesenchymal stromal cells(rBMSCs)and synergistically improved osteogenesis of rBMSCs by altering the macrophage ***-doped collagen scaffolds(Ag-CS)exhibited in vitro antibacterial effects on ***,as well as cell/tissue ***,Sr-CS implanted into the calvarial defect of a rat resulted in improved bone ***,the SSM model is a de novo synthetic strategy for doping bioactive elements into collagen,and can be used to fabricate multifunctional collagen scaffolds to meet the clinical challenges of encouraging osteogenesis,boosting the immune response and fighting severe infection in bone defects.

关键词： Collagen scaffold Bioactive elements Synchronous self-assembly/mineralization Bone tissue engineering

Wafer-scale carbon-based CMOS PDK compatible with siliconbased VLSI design flow

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Nano Research 2024年第8期17卷 7557-7566页

作者： Minghui Yin haitao Xu Yunxia You Ningfei Gao Weihua Zhang Hongwei Liu Huanhuan Zhou chen Wang Lian-Mao Peng Zhiqiang Li Institute of Microelectronics Chinese Academy of SciencesBeijing 100029China University of Chinese Academy of Sciences Beijing 100049China State Key Lab of Fabrication Technologies for Integrated Circuits Beijing 100029China Beijing Hua Tan Yuan Xin Electronics Technology Co. Ltd.Beijing 101399China Institute of Carbon-based Thin Film Electronics Peking UniversityShanxi 030012China Key Laboratory for the Physics and Chemistry of Nanodevices and Center for Carbon-based Electronics School of ElectronicsPeking UniversityBeijing 100871China

Carbon nanotube field-effect transistors(CNTFETs)are increasingly recognized as a viable option for creating high-performance,low-power,and densely integrated circuits(ICs).Advancements in carbon-based electronics,encompassing materials and device technology,have enabled the fabrication of circuits with over 1000 gates,marking carbon-based integrated circuit design as a burgeoning field of research.A critical challenge in the realm of carbon-based very-large-scale integration(VLSI)is the lack of suitable automated design methodologies and infrastructure *** this study,we present the development of a waferscale 3μm carbon-based complementary metal-oxide-semiconductor(CMOS)process design kit(PDK)(3μm-CNTFETs-PDK)compatible with silicon-based Electronic Design Automation(EDA)tools and VLSI circuit design *** proposed 3μm-CNTFETs-PDK features a contacted gate pitch(CGP)of 21μm,a gate density of 128 gates/mm^(2),and a transistor density of 554 transistors/mm^(2),with an intrinsic gate delay around 134 *** of the 3μm-CNTFETs-PDK was achieved through the successful design and tape-out of 153 standard cells and 333-stage ring oscillator *** the carbon-based PDK and a silicon-based design platform,we successfully implemented a complete 64-bit static random-access memory(SRAM)circuit system for the first time,which exhibited timing,power,and area characteristics of clock@10 kHz,122.1μW,3795μm×2810μ*** research confirms that carbon-based IC design can be compatible with existing EDA tools and silicon-based VLSI design flow,thereby laying the groundwork for future carbon-based VLSI advancements.

关键词： carbon nanotube field-effect transistors(CNTFETs) complementary metal-oxide-semiconductor(CMOS) process design kit(PDK) wafer-scale very-large-scale integration(VLSI)

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PCCP外层防护用复合材料的力学性能研究

混凝土与水泥制品 2024年第6期 43-50页

作者：杜智荣侯宇吕邦成芮子庆陈海涛郭丽萍刘益萌刘强东南大学材料科学与工程学院江苏南京211189 江苏省土木工程材料重点实验室江苏南京211189 福建祥睿建设发展有限公司福建厦门361000 福建省兴岩建设集团有限公司福建漳州363900

基于预应力钢筒混凝土管(PCCP)外层防护水泥砂浆受拉易裂的问题及消纳大宗工业固废和降低水泥碳排放的目的,以赤泥、粉煤灰和矿渣全取代水泥,制备得到了满足低碳及拉伸变形需求的全固废基高延性地质聚合物复合材料(High Ductility Geopo... 详细信息

基于预应力钢筒混凝土管(PCCP)外层防护水泥砂浆受拉易裂的问题及消纳大宗工业固废和降低水泥碳排放的目的,以赤泥、粉煤灰和矿渣全取代水泥,制备得到了满足低碳及拉伸变形需求的全固废基高延性地质聚合物复合材料(High Ductility Geopolymer Composites,HDGC)。通过改变前驱体相对含量,探究了HDGC的宏观和细观力学性能、微观形貌及应变硬化能力。结果表明:HDGC的抗压强度随赤泥掺量的增加而减小,随矿渣掺量的增加而增强,但抗拉强度与弯曲强度随矿渣掺量的增加先增大再减小;矿渣掺量为20%的HDGC抗压强度不低于45 MPa,抗拉强度与拉伸应变分别大于4 MPa和4%;HDGC细观力学参数均随矿渣掺量的增加而增大,其强度指数和能量指数高于推荐阈值,拉伸应变硬化能力显著。

关键词：高延性地质聚合物前驱体纤维-基体界面力学性能

基于虚拟样机动力学仿真的大豆扶禾器参数优化

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农业工程学报 2012年第18期28卷 23-29页

作者：陈海涛顿国强东北农业大学工程学院哈尔滨150030

针对大豆扶禾器因结构及作业参数不合理而造成割台损失增加的问题,在大豆植株性状及秸秆材料物理性能测定的基础上,应用Solidworks软件虚拟设计了大豆植株及扶禾器,并应用机械系统动力学仿真软件***构建其三维运动仿真模型,实现了在ADAM... 详细信息

针对大豆扶禾器因结构及作业参数不合理而造成割台损失增加的问题,在大豆植株性状及秸秆材料物理性能测定的基础上,应用Solidworks软件虚拟设计了大豆植株及扶禾器,并应用机械系统动力学仿真软件***构建其三维运动仿真模型,实现了在ADAMS/View环境下扶禾过程的运动仿真。利用Design-Expert6.0.10软件,采用二因素三水平正交试验方法,以作业速度及扶禾器倾角为影响因素,以扶禾器对植株x(作业方向)、y(垂直向上)、z(水平向左)三轴方向作用力为目标函数表征扶禾性能及割台损失,对影响扶禾性能的参数进行优化模拟试验研究,并进行了田间验证试验。结果表明,当作业速度为0.9m/s,扶禾倾角为22°时,扶禾器对大豆植株作用力x轴52.3N、y轴73.2N、z轴95.9N,扶禾效果最好且割台损失率1.19%。该研究为大豆扶禾器设计提供了理论参考。

关键词：农业机械优化速度大豆扶禾器虚拟技术碰撞

A Case of giant Intra Scrotal Angiolipoma

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A Case of giant Intra Scrotal Angiolipoma