摘要：Bismuth‐based photocatalysts are a class of excellent visible‐light photocatalysts;however,their redox activity is relatively poor and the efficiency of photogenerated carrier separation is low,limiting their development and application in the field of *** address these issues,a series of polyoxometalate PW_(12)O_(40)^(3–)‐doped Bi_(2)O_(3–x)/Bi Schottky photocatalysts PW_(12)@Bi_(2)O_(3–x)/Bi‐n(PBOB‐n,where n is the amount of NaBH4,i.e.,6,12,18,24,and 48 mg)were prepared by a simple electrospinning/calcination/in‐situ NaBH4 reduction *** this composite photocatalyst,the doping of PW_(12) could effectively adjust the electronic structure of Bi_(2)O_(3–x) and improve its redox *** a shallow electron trap,PW_(12) promoted the separation of the photogenerated ***,desirable Schottky junction between the metal Bi nanoparticles and PW_(12)@Bi_(2)O_(3–x) further accelerated the separation of the photogenerated *** synergistic effect of the aforementioned factors endowed PBOB‐n with excellent photocatalytic *** the samples,PBOB‐18 exhibited superior photocatalytic *** visible‐light irradiation,93.7%(20 mg catalyst)of 20 ppm tetrabromobisphenol A(TBBPA,20 mL)was degraded in 60 *** activity was 4.4 times higher than that of Bi_(2)O_(3).PBOB‐18 also exhibited an ultrahigh photocatalytic performance for the removal of *** removal rate(600 ppb)reached 83.3%in 30 min,making it one of the most active Bi‐based ***,the photocatalytic mechanisms of PBOB‐18 for TBBPA and NO have been *** work provides a new direction and reference for the design of low‐cost,efficient,stable,and versatile photocatalysts.

摘要：支流与干流的交汇区水流流态复杂,而人工开挖运河存在交角大、汇入流量大的特点,对航道通航影响显著,需对支流口实施河道治理工程。针对平陆运河中牛江河、下底河支流汇入运河后入汇河段的干流通航问题,进行入汇河段水流运动特性的研究。基于RNG k-ε紊流模型,采用三维数值模拟方法模拟不同设计工况下支流入汇情况,结果表明原设计方案不满足通航条件。因此,在设计方案基础上提出调整入汇方向、扩大入汇断面的优化措施,显著改善了通航水流条件,达到规范要求。研究成果可为类似工程提供借鉴。

摘要：文章主要研究电加载试验台设计方案、控制方式及试验验证技术,采用驱动电机与加载电机进行电功率封闭,通过整流、逆变单元以及可编程逻辑控制器(Programmable Logic Controller,PLC)实现转速和加载功率的无级控制与加载精度要求,并与润滑系统、机械系统实现关联互锁,保证系统运行稳定可靠。通过共直流母线控制方案技术研究,实现能源的回收再利用,降低试验成本。

摘要：The rational design and construction of novel two-dimensional(2D)carbon nitrides(CNs)beyond g-C_(3)N_(4) is a hot topic in the fields of chemistry and *** by the polymerisation of urea,we have prepared a series of novel C-C bridged heptazine CNs UO_(x)(where x is the ratio of urea to oxamide,x=1,1.5,2,2.5,and 3),which are similar to(C_(6)N_(7))n,upon the introduction of *** predicted using density functional theory(DFT)calculations,the conjugated structure of UO_(x) was effectively extended from an individual heptazine to the entire ***,its bandgap was reduced to 2.05 eV,and its absorption band edge was significantly extended to 600 ***,its carrier transfer and separation were significantly enhanced,establishing its superior photocatalytic *** optimised UO_(2) exhibits a superior photocatalytic hydrogen production rate about 108.59 lmol h^(-1)(using 10 mg of catalyst)with an apparent quantum efficiency(AQE)of 36.12%and 0.33%at 420 and 600 nm,respectively,which is one of the most active novel CNs reported to ***,UO_(2) exhibits excellent photocatalytic activity toward the oxidation of diphenylhydrazine to azobenzene with conversion and selectivity reaching~100%,which represents a promising highly efficient 2D CN *** phenols degradation,UO_(2) also displayed significantly higher activity and durability during the degradation of phenol when compared to traditional g-C_(3)N_(4),highlighting its significant potential for application in energy,environment and photocatalytic organic reactions.

摘要：武器侵彻爆炸对地下防护结构的振动影响不可忽视,为了提高侵彻爆炸作用下地下结构的抗打击能力,在地下结构被覆层和围岩之间设置泡沫混凝土隔振层,利用泡沫多孔特征对冲击波产生绕射,削弱冲击波对结构的压力作用,降低冲击波对结构的毁伤。应用ANSYS/LS-DYNA软件进行地下结构的侵彻爆炸数值模拟,并对隔振层设置方式进行优化分析,以确定最优隔振层设置位置和厚度。结果表明:泡沫混凝土隔振层有效减弱了结构的振动,减小了结构的内力,提高了结构的抗爆承载力;不同隔振层设置方式隔振效率不同;存在最优的隔振层厚度为0.5m。

摘要：阐述单片机课程的教学实践,分析传统单片机教具存在的问题,提出多学科融合的单片机教具设计思路和整体方案,探讨温度监测报警系统的教具案例在教学中的实践功能。

摘要：文章概括了当代中国清真寺的设计现状,并提出需解决的三个关键性问题,即明确清真寺本质特征、表现地域性特征、反映时代性特征,并以此三点出发反思其设计模式与设计策略。最后以南京吉兆营清真寺翻建项目为例,尝试在特定环境下,探讨当代中国清真寺建筑相应的设计模式与策略。

摘要：人工智能作为新兴科技的标志性内容,在成为经济发展的新引擎、国际竞争的新焦点、社会建设新机遇的同时,也成为了促进教育变革的重要力量。目前,以元宇宙、ChatGPT等为代表的技术正在全球掀起新一轮的智能科技浪潮,也将对教育场景产生新一轮的冲击。基于此,以“人工智能促进未来教育发展:AI新热潮之下的冷思考与新出发”为主题的研讨会意图回应和探究热潮之下的技术走向,并探讨新的技术发展对未来教育的持续及颠覆性影响。围绕“智能技术支持下的教师专业发展和课堂教学”这一研究主题,来自四所不同高校的青年研究者在此次研讨会中分别基于不同的研究场景,从技术设计和实证研究等层面呈现了人工智能赋能教师专业发展的潜在探索维度和未来发展方向。希望通过介绍四个学术报告,带领大家认识人工智能赋能教师专业发展的潜在研究与实践样态,也希望引发大家对智能技术支持下的教师专业发展和课堂教学这一研究主题进行持续且更加深入的思考,为我国人工智能赋能教师专业发展的事业贡献力量。

摘要：文章分析了山西省古交市典型观光榛园的发展现状,并探讨了发展观光榛园的原则,提出了观光榛园的规划建议。

摘要：结合园林水景多变的状态、多变的感官感受、多变的意境特征,对排比、通感、夸张、引用、比拟五种修辞手法在水景营造中的应用技巧进行了探讨,指出在水景的营造中适宜地运用修辞手法可使水景设计更加合理、动人,从而提高景观品质。