摘要：The correct identification of traffic signs plays an important role in automatic driving technology and road safety ***,to address the problems of misdetection and omission in traffic sign detection due to the variety of sign types,significant size differences and complex background information,an improved traffic sign detection model for RT-DETR was proposed in this ***,the HiLo attention mechanism was added to the Attention-based Intra-scale Feature Interaction,which further enhanced the feature extraction capability of the network and improved the detection efficiency on high-resolution ***,the CAFMFusion feature fusion mechanism was designed,which enabled the network to pay attention to the features in different regions in each *** on this,the model could better capture the remote dependencies and neighborhood feature correlation,improving the feature fusion capability of the ***,the MPDIoU was used as the loss function of the improved model to achieve faster convergence and more accurate regression *** experimental results on the TT100k-2021 traffic sign dataset showed that the improved model achieves the performance with a precision value of 90.2%,recall value of 88.1%and mAP@0.5 value of 91.6%,which are 4.6%,5.8%,and 4.4%better than the original RT-DETR model *** model effectively improves the problem of poor traffic sign detection and has greater practical value.

摘要：低碳艺术设计理念是指在平面设计中注重环保、节能、可持续发展的设计理念。本文首先介绍了平面设计中的低碳艺术设计重要性。其次,探讨低碳艺术设计理念应用策略,包括转变设计理念、低碳环保、色彩设计环保安全,与科技生活进行紧密的联系等。最后,介绍了平面设计中的低碳艺术设计理念的推广策略。通过这些设计策略,低碳艺术设计能够传达环保意识,引起人们对环境保护的关注,并倡导大众采取低碳生活方式,共同建设可持续发展的社会。

摘要：研究目的:中低速磁浮一般按双线设计,线路线型由曲线、缓和曲线及直线构成。中低速磁浮特殊的轨排特征,对线路线型精度要求较高,其轨道几何状态直接关系磁浮列车的安全和运行的稳定性。为满足轨排安装的静态平顺度要求,轨排在铺设前已经加工完毕并与线路资料对号入座,且一一对应。当线下工程施工误差导致线路线型与设计不匹配时,就不能采用与轮轨铁路一样的校正方法,需要研究适用于中低速磁浮的校正方法对线路线型进行校正。研究结论:(1)为满足轨排安装的静态平顺度要求,解决由于线下工程施工误差导致线路线型与设计不匹配的问题,研究了一种适合于中低速磁浮的线路线型校正方法,区别于轮轨铁路线路线型校正方法,其主要步骤为:轨排预铺设→线路线型拟合→轨排重排→线路线型匹配性分析→轨排铺设;(2)通过实际案例分析,在施工精度可控的条件下,该校正方法可以解决线下工程施工偏差带来的铺轨问题,避免了线下基础重新施工、轨排重新生产等导致产生废弃工程的情况;(3)本研究结论可为中低速磁浮线路线型校正提供参考。

摘要：文章通过对郯城木旋玩具艺术特征的研究与分析,发现其鲜明活泼的色彩在亲子装的设计中会产生强烈的视觉冲击效果,且图案纹样可采用夸张变形、解构重组、风格融合等手法进行创意再设计应用到服装设计中。在一定程度上拓展亲子装的设计元素,激发了消费者的情感,增强了人们的文化自信和文化认同感,有助于郯城木旋玩具非遗文化的创新与可持续发展。

摘要：The AP1000 with high safety is a generation III pressurized water reactor(PWR),its significant feature is passive safety ***,its passive cooling can only maintain for 72 h and requires additional support from inside or outside the *** solve this problem,this study utilized the WGOTHIC software to calculate and analyze the water inventory in the passive containment cooling water tank under different *** results show that when the cooling water inventory is 6553.78 m3,the AP1000 nuclear power plants can achieve long-term,completely passive cooling without any inside or outside the *** same outcomes occur when 65-mm-thick containment wall increases the design pressure rating to 0.6 MPa at the cooling water inventory of 5673 ***,the AP1000 shield building was accordingly *** ANSYS analysis of the structural stability of the shield building with a 6000 m3 cooling water inventory confirmed that the new design can meet the requirements of the seismic design and the safe residual heat removal requirements of a large-scale PWR.

摘要：文章通过分析锦灰堆的艺术特征,总结出锦灰堆艺术与时装设计相融合的应用手法,对锦灰堆风格图案进行创新设计,完成了系列服装的设计,在拓展时装设计素材的同时,也有助于促进锦灰堆艺术的传承与创新发展,为中国传统艺术注入新的发展活力。

摘要：湖南皮影作为皮影中重要的分支之一,其生存与发展透露出南方农耕文化特征,是本土文化特色之一。文章采用文献研究、设计实践等方法从湖南皮皮影偶的造型、纹饰、色彩及材质等视觉元素方面进行艺术特征分析,探寻皮影与时装结合新形式,让皮影艺术在现代有更多传承形式,实现在服装设计中的创新与发展。

摘要：混沌系统具有非线性、伪随机性、初始值敏感等特性,为基于动力系统构造性能良好的S盒提供了基础,进一步保证了分组加密算法安全性.目前,基于混沌构造S盒的方法大多数针对单个性能指标进行优化,难以获得全面的性能提升.针对此问题,结合混沌映射与多目标遗传算法,提出了一种新的S盒设计方法.首先,利用混沌映射的特性产生初始S盒种群;然后,以S盒的非线性度和差分均匀性为优化目标,基于遗传算法框架对上述两指标进行优化.针对S盒的特点,在优化算法中引入了交换操作,设计了新的变异操作以及非支配序集计算,有效提升了S盒的非线性度和差分均匀性.实验结果表明该算法产生的S盒其差分均匀度为6,非线性度值至少为110,有效提升了S盒的综合性能.

摘要：In order to investigate the effect o f some factors on the unconfined compressive strength(UCS)for composite soil stabilizer-stabilized gravel soil(CSSSGS),the orthogonal test is adopted to set up the experimental *** levels o f each factor armconsidered to obtain the change laws o f UCS,in which the binder dosages are8%,10%,and12%;the curing times ae7,14and21d;the gradation nae0.3,0.35and0.4;and the degrees of compaction are95%,97%,and99%.The range analysis clearly indicates that the influence degree o f the four factors on UCS is in such an order:dosage,age,gradation,and degree o f *** variance analysis shows that only the composite soil stabilizer dosage can significantly affect *** road construction,the examination o f composite soil stabilizer dosage and base-course maintenance should be given much more attention to obtain satisfactory base-course strength,compared w ith gradation floating and the change of degree o f compaction.

摘要：高催化活性的催化材料是提升铝-空气电池阴极氧还原反应(ORR)的必要条件,设计并制备了石墨烯基钙钛矿型催化材料,测试了其电化学性能并组装了铝-空气电池,借助第一性原理研究了催化作用机理。通过科研问题设计和合作研究实践完成基于科研驱动的PBL教学模式实践。结果表明:溶胶-凝胶法制备的掺杂钙钛矿与石墨烯负载,可有效提高导电性和电催化活性,保持电池高稳定放电。该实验从材料制备、电池组装、电子结构分析等方面设计和调控催化性能,使学生掌握了材料制备基本实验技能和电池测试综合应用能力,并引入了材料设计创新性研究成果,实现从理论到实践再到理论的飞跃。PBL教学激发了学生创意意识和科研兴趣,提高了团队合作和综合能力。