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基于内容管理的数字化设计课程教学改革与实践

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模具制造 2024年第8期24卷 79-81,85页

作者：杜遥尹新权王东亮陈永哲兰州工业学院汽车工程学院甘肃兰州730050

以应用型技术大学汽车类专业数字化设计课程教学内容为研究对象,结合汽车行业对应用型技能人才的需求,在分析该类专业数字化设计课程设置、教学内容及其实践平台现状的基础上,对数字化设计课程教学内容的管理以及实践平台的应用与开发... 详细信息

以应用型技术大学汽车类专业数字化设计课程教学内容为研究对象,结合汽车行业对应用型技能人才的需求,在分析该类专业数字化设计课程设置、教学内容及其实践平台现状的基础上,对数字化设计课程教学内容的管理以及实践平台的应用与开发展开研究,提出了基于内容管理的数字化设计课程实践教学改革思路,其研究结果可为应用型技术大学新工科教育教学的改革与实践提供参考。

关键词：新工科数字化设计内容管理改革与实践

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Transgenic Paulownia Expressing shiva-1 Gene Has Increased Resistance to Paulownia Witches＇ Broom Disease

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Journal of Integrative Plant Biology 2005年第12期47卷 1500-1506页

作者： Tao du yao WANG Qin-Xue HU Jie CHEN Sheng LIU Wen-Jin HUANG Mu-Lan LIN Wuhan Institute of Virology the Chinese Academy of Sciences Wuhan 430071 China

Stem segments from diseased Paulownia tomentosaXP, fortunei and leaves from healthy control were transformed with the expression vector p438PRSI via Agrobacterium tumefaciens. The p438PRSI vector contained shiva-1 gene, which encodes an antibacterial peptide under the control of a CaMV35S promoter. The regenerated plants from transformed explants were planted in a greenhouse and nursery. PCR and Southern blotting analysis showed that the shiva-1 gene was successfully integrated into the Paulownia genome. Transcription of the integrated shiva-1 gene was confirmed by RT-PCR. Bioassay in the green house and phytoplasma DNA-dot blotting demonstrated that resistance to Paulownia witch＇s broom disease （PWB） increased significantly in shiva-l-transgenic Paulownia. Further investigations indicated that higher Shiva- 1 expression correlated with fewer phytoplasma and less symptoms in diseased transgenic Paulownia. Together, our findings strongly suggest that breeding shiva-1-Paulownia is an effective strategy to control PWB disease.

关键词： Agrobacterium tumefaciens Paulownia Paulownia witch's broom phytoplasma shiva-1.

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四川锅浪跷水库地震台网关键技术指标验证

四川地震 2024年第3期 47-50页

作者：王翠芳魏娅玲胥珍赵昱杜瑶四川省地震局四川成都610041

四川省雅安市天全县锅浪跷水库地震台网在技术设计阶段,对台基噪声水平、监测震级下限(M_(L)0.5)、观测动态范围和地震活动性4个关键技术指标进行了精心的设计。锅浪跷水库台网建成后,必须对这上述指标进行验证,以此判断台网建成后能否... 详细信息

四川省雅安市天全县锅浪跷水库地震台网在技术设计阶段,对台基噪声水平、监测震级下限(M_(L)0.5)、观测动态范围和地震活动性4个关键技术指标进行了精心的设计。锅浪跷水库台网建成后,必须对这上述指标进行验证,以此判断台网建成后能否达到技术设计的要求。通过对锅浪跷水库地震台网运行期间记录的数据和产出的地震资料进行分析,对上述4个指标进行验证,结果表明各个技术指标达到了技术设计时的要求。

关键词：锅浪跷水库台基噪声监测震级下限观测动态范围地震活动性

Effects of environment and genotype-by-environment interaction on phenotype of Rorippa elata(Brassicaceae),an endemic alpine plant in the Hengduan mountains

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Journal of Plant Ecology 2024年第4期17卷 42-55页

作者： Zhi-Qiang du yao-Wu Xing Ting-Shen Han CAS Key Laboratory of Tropical Forest Ecology Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesMengla 666303China University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Plant Diversity and Specialty Crops Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesMengla 666303China

Global climate change poses a severe threat to mountain *** plasticity and local adaptation are two common strategies for alpine plant to cope with such *** may facilitate organismal adaptation to contrasting environments,depending on the influences of the environment or genotype or their interacted *** this study,we use an endemic alpine plant(Rorippa elata)in the Hengduan mountains(HDM)to unravel its phenotypic basis of adaptation strategy and evaluate the relative contributions of environment and genotype to its *** transplanted 37 genotypes of *** into two common gardens across low and high elevations(2800 vs.3800 m)during *** fitness-related traits were measured,including flowering probability and glucosinolates(GS)*** estimated the environmental or genotypic contributions to the phenotype and identified the main environmental *** results revealed that both environment and genotype-by-environment interactions contributed to the phenotypes of *** heterogeneity was identified as a key factor that explained 24%of the total phenotypic *** particular,genotypes of the northern HDM showed significantly higher plasticity in flowering probability than those of the southern ***,within the southern HDM,GS content indicated local adaptation to herbivory stresses for *** genotypes along *** conclusion,our results suggest that *** may have adapted to the alpine environment through species-level plasticity or regional-level local *** processes were shaped by either complex topography or interactions between genotype and mountain *** study provides empirical evidence on the adaptation of alpine plants.

关键词： alpine plant common garden genotype-by-environment Hengduan mountains local adaptation phenotypic plasticity

Insights into thermodynamic performance of a hypersonic precooled air-breathing engine with a complicated multi-branch closed cycle

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Chinese Journal of Aeronautics 2024年第8期37卷 106-123页

作者： Yifan WANG Zhengping ZOU Pengcheng du Lichao yao Huoxing LIU Yusen XU Research Institute of Aero-Engine Beihang UniversityBeijing 102206China National Key Laboratory of Science and Technology on Aero-Engine and Aero-Thermodynamics Beihang UniversityBeijing 102206China

An advanced precooled airbreathing engine with a closed Brayton cycle is a promising solution for high-speed propulsion,of which the Synergetic Air Breathing Rocket Engine(SABRE)is a representative *** performance of the latest SABRE-4 cycle was analyzed in this ***,a relatively complete engine performance model that considers the characteristics of turbomachinery and heat exchangers was ***,Sobol’global sensitivity analysis of key performance parameters was carried out to identify the most influential design *** specific impulses under different target specific thrusts were obtained by particle swarm optimization,of which the thermodynamic parameters corresponding to a specific thrust of 1.12 kN·s·kg^(-1)and a specific impulse of 3163 s were chosen as the design *** different control laws were analyzed in contrast,and the charge control method had the strongest ability of thrust regulation as well as maintaining a favorable specific impulse ***,working characteristics under the charge control and over a typical flight envelope were calculated,in which the average value of the maximum specific impulse was as high as 5315 *** study would help to deepen the understanding of SABRE-4 thermodynamic characteristics and other precooled airbreathing engine cycles with similar layouts.

关键词： Hypersonic Precooled airbreathing engine Thermodynamic cycle Control law Working characteristics

Sexual Dimorphism and Female Reproductive Characteristics in the Hainan Water Skink(Tropidophorus hainanus)from Hainan,South China

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Asian Herpetological Research 2024年第1期15卷 49-58页

作者： Yu du Xiaming ZHU Chixian LIN Yuntao yao Xiang JI Hainan Key Laboratory for Herpetological Research College of Fisheries and Life SciencesHainan Tropical Ocean UniversitySanya 572022HainanChina Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection College of Life and Environmental SciencesWenzhou UniversityWenzhou 325035ZhejiangChina Institute for Eco-environmental Research of Sanyang Wetland Wenzhou UniversityWenzhou 325014ZhejiangChina

We studied sexual dimorphism in body size and shape and female reproductive characteristics in the Hainan Water Skink(Tropidophorus hainanus)from Hainan,South *** our sample the largest female and male were 61.1 and 55.2 mm snout-vent length(SVL),*** mean SVL was larger in adult females(52.0 mm)than in adult males(48.3 mm).Juveniles were sexually dimorphic in head length but not in other examined morphological *** males were longer in head length and shorter in abdomen length and fore-limb length than adult females of the same *** shifts in sexual dimorphism in body shape were evident,as revealed by the fact that morphological differences between the sexes were more pronounced in adults than in *** produced a single litter of 3–6 offspring per season from early August to early *** size,litter mass and offspring(neonate)mass were positively related to female *** mass was independent of relative *** the above findings we draw three main ***,females are the larger sex in ***,and sexual dimorphism in body shape is more pronounced in adults than in ***,larger female *** produce more and larger offspring and thus heavier litters than smaller ***,the offspring size-number trade-off does is not evident in ***.

关键词： fecundity morphology offspring size-number trade-off reproduction scincidae sexual dimorphism

Combining graph neural network with deep reinforcement learning for resource allocation in computing force networks

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Frontiers of Information Technology & Electronic Engineering 2024年第5期25卷 701-712页

作者： Xueying HAN Mingxi XIE Ke YU Xiaohong HUANG Zongpeng du Huijuan yao School of Computer Science Beijing University of Posts and TelecommunicationsBeijing 100876China School of Artificial Intelligence Beijing University of Posts and TelecommunicationsBeijing 100876China Department of Infrastructure Network Technology Research China Mobile Research InstituteBeijing 100032China

Fueled by the explosive growth of ultra-low-latency and real-time applications with specific computing and network performance requirements,the computing force network(CFN)has become a hot research *** primary CFN challenge is to leverage network resources and computing *** recent advances in deep reinforcement learning(DRL)have brought significant improvement in network optimization,these methods still suffer from topology changes and fail to generalize for those topologies not seen in *** paper proposes a graph neural network(GNN)based DRL framework to accommodate network trafic and computing resources jointly and *** taking advantage of the generalization capability in GNN,the proposed method can operate over variable topologies and obtain higher performance than the other DRL methods.

关键词： Computing force network Routing optimization Deep learning Graph neural network Resource allocation

数字时代灵光的消逝与解放及其在品牌营销中的实践

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服装设计师 2024年第5期 30-36页

作者：杜遥华南师范大学创意设计学院台湾政治大学传播学院中国台湾

复制技术改变了艺术的生产与表现方式,艺术民主化为大众带来创作与参与的可能。在AI技术的浪潮下,品牌与艺术间的意义是在新世代中藉由价值转变而重新觉醒的灵光概念。本研究以品牌营销系统理论探勘艺术民主化即灵光解放后,数字时代如... 详细信息

复制技术改变了艺术的生产与表现方式,艺术民主化为大众带来创作与参与的可能。在AI技术的浪潮下,品牌与艺术间的意义是在新世代中藉由价值转变而重新觉醒的灵光概念。本研究以品牌营销系统理论探勘艺术民主化即灵光解放后,数字时代如何进行品牌营销实践的问题。

关键词：灵光数字复制品牌艺术品牌营销系统

Urbanization effect on precipitation over the Pearl River Delta based on CMORPH data

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Advances in Climate Change Research 2015年第1期6卷 16-22页

作者： CHEN Sheng LI Wei-Biao du yao-Dong MAO Cheng-Yan ZHANG Lan Department of Atmospheric Sciences Sun Yat-sen University Guangdong Provincal Meteorological Service Jiangshan Meteorological Bureau Guangzhou Meteorological Information Network Center

Based on the satellite data from the Climate Prediction Center morphing(CMORPH) at very high spatial and temporal resolution, the effects of urbanization on precipitation were assessed over the Pearl River Delta(PRD) metropolitan regions of China. CMORPH data well estimates the precipitation features over the PRD. Compared to the surrounding rural areas, the PRD urban areas experience fewer and shorter precipitation events with a lower precipitation frequency(ratio of rainy hours, about 3 days per year less); however, short-duration heavy rain events play a more significant role over the PRD urban areas. Afternoon precipitation is much more pronounced over the PRD urban areas than the surrounding rural areas, which is probably because of the increase in short-duration heavy rain over urban areas.

关键词： CMORPH Urbanization effects Pearl River Delta