摘要：Purpose–Micro aerial vehicle is nonlinear plant;it is difficult to obtain stable control for MAV attitude due to *** purpose of this paper is to propose one robust stable control strategy for MAV to accommodate system uncertainties,variations,and external ***/methodology/approach–First,by employing interval type-II fuzzy neural network(ITIIFNN)to approximate the nonlinearity function and uncertainty functions in the attitude angle dynamic model of micro aircraft vehicle(MAV).Then,the Lyapunov stability theorem is used to testify the asymptotic stability of the closed-loop system,the parameters of the ITIIFNN and gain of sliding mode control can be tuned on-line by adaptive laws based on Lyapunov synthesis approach,and the Lyapunov stability theorem has been used to testify the asymptotic stability of the closed-loop ***–The validity of the proposed control method has been verified through real-time *** experimental results show that the performance of interval type-II fuzzy neural network based gain adaptive sliding mode controller(GASMC-ITIIFNN)is significantly improved compared with conventional adaptive sliding mode controller(CASMC),type-I fuzzy neural network based sliding mode controller(GASMC-TIFNN).Practical implications–This approach has been used in one MAV,the controller works well,and which could guarantee the MAV control system with good performances under uncertainties,variations,and external ***/value–The main original contributions of this paper are:the proposed control scheme makes full use of the nominal model of the MAV attitude control model;the overall closed-loop control system is globally stable demonstrated by Lyapunov stable theory;the tracking error can be asymptotically attenuated to a desired small level around zero by appropriate chosen parameters and learning rates;and the MAV attitude control system based on GASMC-ITIIFNN controller can achieve favourable tracki

摘要：We report a novel nanotechnology-based approach for the highly efficient catalytic oxidation of phenols and their removal from *** use a nanocomplex made of multi-walled carbon nanotubes(MWNTs)and magnetic nanoparticles(MNPs).This nanocomplex retains the magnetic properties of individual MNPs and can be effectively separated under an external magnetic fi *** importantly,the formation of the nanocomplex enhances the intrinsic peroxidase-like activity of the MNPs that can catalyze the reduction of hydrogen peroxide(H2O2).Significantly,in the presence of H2O2,this nanocomplex catalyzes the oxidation of phenols with high effi ciency,generating insoluble polyaromatic products that can be readily separated from water.

摘要：A 19 mW highly integrated GPS receiver with a ΣΔ fractional-N synthesizer is presented in this ***-N frequency synthesizer architecture was adopted in this work, to provide more degrees of freedom in the synthesizer design.A high linearity low noise amplifier(LNA) is integrated into the *** radio receiver chip was fabricated in a 0.18 μm complementary metal oxide semiconductor(CMOS) process and packaged in a 48-pin 2 mm×2 mm land grid array chip scale *** chip consumes 19 mW(LNA1 excluded) and the LNA1 6.3 *** performances are:noise figure36 dB, and-108 dBc/Hz @ 1 MHz phase noise offset from the *** carrier noise ratio(C/N) can reach 41 dB at an input power of-130 *** chip operates over a temperature range of-40, 120 °C and ±5% tolerance over the CMOS technology process.

摘要：With the significant discharge of antibiotic wastewater into the aquatic and terrestrial ecosystems, antibiotic pollution has become a serious problem and presents a hazardous risk to the environment. To address such issues, various investigations on the removal of antibiotics have been undertaken. Photocatalysis has received tremendous attention owing to its great potential in removing antibiotics from aqueous solutions via a green, economic, and effective process. However, such a technology employing traditional photocatalysts suffers from major drawbacks such as light absorption being restricted to the UV spectrum only and fast charge recombination. To overcome these issues, considerable effort has been directed towards the development of advanced visible light-driven photocatalysts. This mini review summarises recent research progress in the state-of-the-art design and fabrication of photocatalysts with visible-light response for photocatalytic degradation of antibiotic wastewater. Such design strategies involve the doping of metal and non-metal into ultraviolet light-driven photocatalysts, development of new semiconductor photocatalysts, construction of heterojunction photocatalysts, and fabrication of surface plasmon resonance-enhanced photocatalytic systems. Additionally, some perspectives on the challenges and future developments in the area of photocatalytic degradation of antibiotics are provided.

摘要：主流语义分割方法存在针对遮挡、重叠导致的分割效果不佳和类间边界分割缺失等问题。为此,设计了一种基于可见光与红外融合图像的多尺度补丁嵌入和多路径交叉注意力语义分割方法,实现了多类别目标的高精度完整分割。首先,采用多层深度可分离卷积组成的补丁嵌入模块提取多尺度语义表征信息;然后,使用并行处理模式的多路径交叉注意力模块基于补丁嵌入阶段的全局上下文信息构建完整序列模型,在同一层级实现从粗粒度到细粒度信息的特征表示;最后,在解码器阶段设计了一个多层渐进交互模块,对编码器阶段获取的多尺度特征采用逐层交互后渐进融合的方式聚合多类语义信息和空间信息,克服了类间分割边界不完整和类内分割不一致的难点。实验结果表明:在基于可见光与红外融合图像组成的数据集的语义分割实验中,所提方法整体性能优于目前的主流分割方法。

摘要：生态护坡是城市景观的重要组成部分,园林景观式边坡设计应遵循生态性、合理性、观赏性原则。本文结合作者实际工作经验及香港地区边坡景观建设的成功经验,从软质景观设计(选择恰当的绿化工艺、坡面排水系统设计、植物配置)和硬质景观设计(挡土墙美化、坡面艺术铺贴或彩绘、地形处理等形式)两方面介绍了香港地区边坡景观设计案例,为生态护坡园林景观化提供借鉴。

摘要：艺术来源于生活且反作用于生活。东北秧歌脱胎于原始歌舞,在形成与发展的过程中,其功能和作用不断发生变化,20世纪初以前主要是"娱神"、"娱上",新中国成立以后,主要是"娱人"、"娱己"。

摘要：发展学生核心素养主要是指学生应具备能够适应终身发展和社会发展需要所必备的品格和关键能力。《虎门销烟》一课基于核心素养的理论要求,根据学生易于接受和理解历史故事的认知特点,致力于提高学生的民族自豪感和为祖国强大而奋斗的志向。教学活动通过历史事件和历史人物的分析向学生循序渐进地输送正确的历史观,引导他们直面历史,既不忘屈辱历史,又能感受祖国强大带来的骄傲和自豪。

摘要：结合一些典型的住宅小区,对区域集中消防给水系统进行了一些初步探讨。

摘要：“双碳”目标下,构建新型桩基是需要解决的重大课题。论文开展了不同相对密实度和加载高度下的桩基单调水平加载试验,分析水平承载力和土体刚度的变化规律对桩基承载特性的影响。结果表明,在相同水平荷载作用下,降低水平荷载加载高度会提升桩基水平承载力。场地相对密实度增加,桩周土体刚度增大,桩周土体水平抗剪能力越强。