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港口吞吐量预测分析探讨——以潼南港为例

交通企业管理 2024年第3期39卷 72-74页

作者：李朋刘宇洁田厚勇重庆市潼南区交通事务中心

近年来,重庆港相继建成了主城果园、寸滩等一批规模化、专业化码头,港口规模效应显著增强,但支流航运建设推进缓慢,距建成“服务+辐射”型长江上游航运中心的目标仍有较大差距。随着《重庆港口总体规划(2035年)》规划出台,涪江正在建设... 详细信息

近年来,重庆港相继建成了主城果园、寸滩等一批规模化、专业化码头,港口规模效应显著增强,但支流航运建设推进缓慢,距建成“服务+辐射”型长江上游航运中心的目标仍有较大差距。随着《重庆港口总体规划(2035年)》规划出台,涪江正在建设双江航运枢纽工程,富金坝、安居、渭沱等枢纽已经启动船闸升级改造工程,嘉陵江井口枢纽已提上建设议程,未来涪江将以三级航道的标准接入嘉陵江。

关键词：港口吞吐量货运量预测方法自然增长量诱增增长量

热塑性复合材料玻璃纤维环氧成膜剂的制备与性能研究

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复合材料科学与工程 2024年第6期 112-117页

作者：潘超超李鹏潘春呈侯勇张兆斌陆泽栋北京化工大学材料科学与工程学院北京100029 泰山玻璃纤维有限公司泰安271000 杭州环保科技咨询有限公司杭州310003

本文采用化学改性法,以环氧氯丙烷、共聚物P105、环氧树脂E-51和双酚A为原料,制备了一种水性环氧树脂乳液作为玻璃纤维成膜剂,研究了原料摩尔比、E-P105用量和乳化温度对乳液粒径和稳定性的影响。结果表明,当P105、ECH、NaOH摩尔比为1∶... 详细信息

本文采用化学改性法,以环氧氯丙烷、共聚物P105、环氧树脂E-51和双酚A为原料,制备了一种水性环氧树脂乳液作为玻璃纤维成膜剂,研究了原料摩尔比、E-P105用量和乳化温度对乳液粒径和稳定性的影响。结果表明,当P105、ECH、NaOH摩尔比为1∶1.5∶1.2,环氧树脂与双酚A摩尔比为2.25∶1,E-P105质量份数为环氧树脂和双酚A质量的20%,乳化温度为60℃时,乳液粒径为0.387μm,粒径分布均匀,具有良好的稳定性,经上浆处理后的玻璃纤维复合材料力学性能优异。

关键词：玻璃纤维成膜剂水性环氧树脂乳液化学改性法复合材料

Intrinsic conductive cellulose nanofiber induce room-temperature reversible and robust polyvinyl alcohol hydrogel for multifunctional self-healable biosensors

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Nano Research 2023年第2期16卷 3156-3167页

作者： Zhouyu Miao Yi Song Yanjuan Dong Dan Ge JiaXin Shui Xia He hou-yong Yu The Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Ministry of Education Zhejiang Sci-Tech UniversityHangzhou 310018China Zhejiang Sci-Tech University Huzhou Research Institute Co. LTDHuzhou 313000China

Polyvinyl alcohol(PVA)hydrogels are widely used for flexible sensors by adding various conductive substances due to their excellent mechanical properties and self-healing ***,most of the conductive substances added to PVA hydrogel sensors are currently complicated to prepare,costly,and environmentally ***,to overcome this challenge,we successfully prepared intrinsic conductive cellulose nanofiber(G-CNF)by simply applying sulfuric acid and a low-energy water bath with heat treatment,and obtained a powerful multifunctional self-healing PGC hydrogel biosensor using dynamic chemical cross-linking of PVA and borax with glycerol and *** obtained PGC hydrogels have excellent mechanical properties(strain:950%),good adhesion ability,robust self-healing properties,and room-temperature reversibility,due to the presence of conductive networks and hydrogen bonds within PGC ***,PGC hydrogels with the graphene structured G-CNF have a fast response to various signals and good stability with gauge factor(GF)values up to 1.83,as well as a sensitive response to temperature(temperature coefficient of resistance(TCR)up to 1.9),which can be designed as a variety of biosensors,such as human motion monitoring,information encryption/transmission,and real-time temperature monitoring ***,PGC hydrogels as multifunctional self-healing hydrogel biosensors pave the way for the development of flexible biosensors in wearable devices,human–computer interaction,and artificial-related applications.

关键词： polyvinyl alcohol(PVA)hydrogels conductive cellulose nanofiber conductive network multifunctional biosensor

Ionic self-diffusion coefficient and shear viscosity of high-Z materials in the hot dense regime

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Matter and Radiation at Extremes 2021年第2期6卷 8-16页

作者： yong hou Yang Jin Ping Zhang Dongdong Kang Cheng Gao Ronald Redmer Jianmin Yuan Department of Physics College of Liberal Arts and SciencesNational University of Defense TechnologyChangsha 410073People’s Republic of China Institute of Physics University of RostockA.-Einstein-Strasse 23–24D-18059 RostockGermany Graduate School China Academy of Engineering PhysicsBeijing 100193People’s Republic of China

High-Zmaterials exhibit a broad range of variation of the charge state in the hot dense regime,and so ionic structures becomecomplexwith increasing density and temperature owing to *** high-Z uranium as example,we study its electronic and ionic structures in the hot dense regime by combining an average-atommodelwith the hypernetted chain *** electronic structure is described by solving theDirac equation,taking account of relativistic effects,including broadening of the energy levels,and the effect of other ions via correlation *** the basis of the electronic distribution around a nucleus,the ion pair potential is constructed using the modified Gordon–Kim model in the frame of temperaturedependent density functional *** of the presence of ion–ion strong coupling,the bridge function is included in the hypernetted chain approximation,whichis usedto calculate the correlation *** take account of the influenceon transportpropertiesof the strong correlation of electrons with highly charged ions,we perform both classical and Langevin molecular dynamics simulations to determine ion self-diffusion coefficients and the shear viscosity,using theGreen–Kubo relation and an ion–ion pair potential with good *** show that the influence of electron–ion collisions on transport properties becomes more important as the free electron density increases owing to thermal ionization.

关键词： regime viscosity diffusion

Investigation of a root zone heating system for greenhouse seedling and its effects on micro-environment

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International Journal of Agricultural and Biological Engineering 2020年第6期13卷 47-52页

作者： Fen He yong hou Kai Li Xiaoming Wei Yaqing Liu Academy of Agricultural Planning and Engineering Ministry of Agriculture and Rural AffairsBeijing 100125China Key Laboratory of Farm Building in Structure and Construction Ministry of Agriculture and Rural AffairsBeijing 100125China Beijing Research Center of Intelligent Equipment for Agriculture Beijing 100097China

Under the extremely cold climatic condition,crops have to survive severe heat stress conditions,even if they are being kept in *** the winter and spring of North China,the air and soil temperature is low inside the greenhouse,and when using a traditional heating system,the energy consumption is *** paper reports on a study of different design solutions for a root zone heating system based on a kind of low temperature radiation *** zone heating systems offer increasing crop quality and productivity.A novel type of heat preservation and root zone heating system was applied in greenhouse *** through multiple experiments,the effect of the root zone heating system on the ambient environment and seedbed surface was studied,and the heat preservation effect and heating uniformity were *** show that single-layer film covering on the root zone heating system can make the average temperature at night increase 1°*** the average seedbed surface and substrate temperature can increase 11.3°C and 5.2°C,*** conclusion,the root zone heating system can effectively improve the environmental temperature of seedling and the uniformity of heating is high,which provides a strong guarantee for high-quality seedling cultivation.

关键词： greenhouse root zone heating system micro-environment seedling substrate temperature air temperature

New tidal debris nearby the Sagittarius leading tail from the LAMOST DR2 M giant stars

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Research in Astronomy and Astrophysics 2016年第8期16卷 61-70页

作者： Jing Li Chao Liu Jeffrey L.Carlin Jing Zhong Jin-Liang hou Li-Cai Deng Heidi Jo Newberg yong Zhang yong-Hui hou Yue-Fei Wang Key Laboratory of Galaxies and Cosmology Shanghai Astronomical Observatory Chinese Academy of Sciences Shanghai 200030 China University of Chinese Academy of Sciences Beijing 100049 China Key Laboratory of Optical Astronomy National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 China Dept. of Physics Applied Physics and Astronomy Rensselaer Polytechnic Institute Troy NY 12180 USA Nanjing Institute of Astronomical Optics & Technology National Astronomical Observatories Chinese Academy of Sciences Nanjing 210042 China

We report two new sets of tidal debris nearby the Sagittarius （Sgr） tidal stream in the north Galactic cap （NGC） identified from the M giant stars in LAMOST DR2. The M giant stars located in the sky area of 210° 〈 A 〈 290°, and having a distance of 10-20 kpc and We/HI 〈 -0.75 show clear bimodality in their velocity distribution. We denote the two peaks as Vel-3＋83 for the one within a mean velocity of -3 km s^-1 with respect to that of the well observed Sgr leading tail at the same A and Ve1＋162＋26 for the other one with a mean velocity of 162km s^-1 with respect to the Sgr leading tail. Although the projected A-Vgsr relation of Vel-3＋83 is very similar to the Sgr leading tail, the opposite trend in the A-distance relation as compared to the Sgr leading tail suggests Vel-3＋83 has a different 3D direction of motion with any branch of the simulated Sgr tidal stream from Law ＆ Majewski. Therefore, we propose it is new tidal debris not related to the Sgr stream. Similarly, the other substructure Vel＋162＋26, which is the same one as the NGC group discovered by Chou et al., also moves toward a different direction with respect to the Sgr stream, implying that it may have a different origin than the Sgr tidal stream.

关键词： Galaxy: halo -- Galaxy structure -- Galaxy kinematics and dynamics

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基于嵌入式终端的YOLOv3算法优化实现

计算机与数字工程 2024年第1期52卷 162-168页

作者：侯勇杨争争薛少辉翟二宁西北机电工程研究所咸阳712000

图像目标识别技术是计算机视觉研究领域的热点问题。然而目前先进的目标检测算法大多基于服务器端训练部署,在如今的移动互联网时代背景下无法做到真正的落地应用。同时考虑到国产化芯片和软件开发环境需求,优化并训练了YOLOv3检测模型... 详细信息

图像目标识别技术是计算机视觉研究领域的热点问题。然而目前先进的目标检测算法大多基于服务器端训练部署,在如今的移动互联网时代背景下无法做到真正的落地应用。同时考虑到国产化芯片和软件开发环境需求,优化并训练了YOLOv3检测模型,并基于嵌入式终端-百度EdgeBoard边缘AI计算盒进行了模型部署。实验结果充分表明优化后的YOLOv3-MobileNetv1模型对行人、车辆、飞机等多类目标均具有良好的检测识别效果。

关键词：嵌入式终端目标检测深度学习轻量化模型

Ozone decomposition under the irradiation of 253.7 nm in the presence of methyl bromide

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Journal of Environmental Sciences 2000年第3期12卷 266-269页

作者： LI Chao\|min, hou Jian, YU yong, hou Hui\|qi (Institute of Environmental Science, Fudan University, Shanghai 200433, China) Institute of Environmental Science Fudan University Shanghai 200433 China

In this paper the mechanism and kinetic of ozone decomposition under the irradiation of 253.7 nm UV\|light were studied. The quantum yield of the ozone depletion in the presence of methyl bromide is further determine... 详细信息

关键词： methyl bromide ozone UV

Preparation of micro-nano hollow multiphase ceramic microspheres containing MnFe_2O_4 absorbent by self-reactive quenching method

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Rare Metals 2013年第6期32卷 592-598页

作者： Hong-Fei Lou Jian-Jiang Wang Zhi-Ning Zhao Xu-Dong Cai yong-Shen hou Advanced Materials Institute Mechanical Engineering College

Fe–Fe2O3–MnO2–sucrose–epoxy resin and O2 as reaction system and feed gas,separately,were used to prepare micro-nano hollow multiphase ceramic microspheres containing MnFe2O4absorbent by self-reactive quenching method which is integrated with flame jet,selfpropagating high-temperature synthesis(SHS),and rapidly *** morphologies and phase compositions of hollow microspheres were studied by scanning electron microscope(SEM),transmission electron microscope(TEM),X-ray diffraction(XRD),and energy dispersive *** results show that the quenching products are regular spherical substantially with hollow structure,particle size is between few hundreds nanometers and 5 *** compositions are diphase of Fe3O4,Mn3O4,and MnFe2O4,and the spinel soft magnetic ferrite MnFe2O4 with microwave magnetic properties is in *** with each other,burst as well as‘‘refinement’’of agglomerate powders in flame field may be the main reasons for the formation of micro-nano hollow multiphase ceramic microspheres containing MnFeOabsorbent.

关键词： Self-reactive quenching method Micro-nano hollow multiphase ceramic microspheres Collisions and burst Refinement