摘要：The slippery liquid-infused porous surface(s)(SLIPS)that imitates the Nepenthes pitcher plant has proven to be highly versatile and can be combined with various surface characteristics such as dynamic response,antifouling,selective adhesion,and optical/mechanical *** addition,the introduction of a lubricating fluid layer also gives it extremely low contact angle hysteresis and self-repairing properties,which further expands its application ***,SLIPS has been proven to be suitable for many frontier fields such as aerospace,communications,biomedicine,and microfluidic *** this review,we explain the theoretical background of SLIPS and the preparation methods currently available,including the choice of substrate materials and lubricants,and we discuss the design parameters of the liquid injection surface and how to deal with the consumption of lubricants in practical *** addition,the paper focuses on current and potential applications,such as preventing pathogen contamination of and blood adhesion of medical equipment,manipulation of tiny droplets,and directional transportation of ***,some weaknesses that appear when SLIPS is used in these applications are pointed out,which provides a new perspective for the development of SLIPS in the future.

摘要：Based on aphid wax-honeydew marble and the hydrophobic wax structure of lotus and its derived applications with superareophilic and superhydrophobic properties,edible carnauba wax and beeswax particles were mixed and utilized to mimic lotus wax and wrap liquid,thus forming liquid marbles(LMs).Through the utilization of continuous production system(CPS),wax as an interfacial surfactant,water and solid,air-phase or mixed-phase marble content was *** edible liquid marble(ELM)could encapsulate water and food *** solid marble(ESM)and edible solid hollow marbles(ESHMs)could be fabricated by applying pectin or ***,through the heating of wax powders with different melting temperatures,stable tablets and hollow capsules could be *** wax powder as interfacial surfactant could firmly bind with pectin through hydrogen bonds on *** edible LMs can therefore be applied for residue reduction,corrosion reduction,biohazard prevention and cleaning in the food *** other phase LMs could act as novel tools in the pharmaceutical and food industries with the above-mentioned water transport,preservation,sustained releasing and selective releasing abilities.

摘要：针对具有输入幅值约束的输入时滞机械系统,研究基于有向图拓扑的多智能体系统(multi-agent system,MAS)的一致性控制问题。对于只有部分智能体能够接收到理想信号的情况,提出一种观测器,使每个智能体都能观测到理想信号,并证明观测误差的指数收敛性。在控制器设计中,通过将系统的输入积分反馈到控制器中,消除输入延迟的影响;结合输入积分法和双曲正切函数,在解决输入延迟问题的同时限制控制输入幅值,并利用FMINCON函数优化控制参数。最后,利用李雅普诺夫方法证明控制目标的实现和闭环系统的渐近稳定性。仿真结果表明,所提出的观测器和控制器能够有效实现系统的一致性控制。

摘要：墙后土压力分布形式是挡土墙设计与施工的重要参考依据。本研究开展了单一硬土、硬土-软土-硬土、软土-硬土-软土和单一软土4组挡墙平动室内模型试验,分析了墙后实测侧向水平土压力分布规律。结果表明,挡墙平动,对于成层土,被动土压力均在土层交界处土应力发生突变,墙后被动土压力图呈锯齿梯形台阶分布;在侧向水平荷载作用下,水平分层地基软硬土层界面处,无应力集中与应力扩散,与竖向荷载作用下分层地基应力集中和应力扩散存在显著区别。

摘要：Both the academic society and the industry are hunting for new energy forms for the ***,the world should not forget the conventional technologies that contribute to the sustainable society by technical *** them,lubrication plays a significant role in energy saving and in low CO2emission by increasing the fuel efficiency and by prolonging the service life of *** the advance of novel synthetic approaches,and nanoscience and technologies,novel lubrication oils and additives and their formulations are being developed to reduce friction and wear,and novel surface treatment routes and surface coatings are invented and provide more efficient *** technologies create tremendous chances for machines to work more efficiently with low energy *** we review the recent progresses and challenges associated with some novel lubrication techniques that include novel surface treatment(such as texturing,high-performance nanocomposite coatings,adapting coating),tribology design(solid and liquid lubrication),energy-conserving engine oil and novel lubricants and formula(such as ionic liquids,low S,P content additives)which are to be adopted to enhance the fuel efficiency to achieve energy saving and low carbon *** is increased demand to replace fossil lubricants by degradable green *** designed coatings can reduce drag significantly during navigation of both airplanes and *** these aspects will be also reviewed in the paper.

摘要：针对核电厂严重事故后丧失内外电源的工况,提出了通过提取乏燃料水池(简称乏池)余热进行发电以实现乏池长期自安全冷却的方案。通过基于乏池余热的热力过程分析、工质选择、关键设备热力分析、系统方案设计研究,探讨了严重事故后利用乏池余热实现乏池长期自安全冷却的可行性。研究表明,根据核电厂严重事故后的工况环境以及系统输出功率,可采用上原循环或国海循环来建设乏池余热自发电系统。对于在役堆型和新堆型,该系统均可保证实现乏池余热的持续排出,满足乏池温度低于80℃的要求,从而实现乏池的自安全冷却。

摘要：近年来,高熵合金成为金属材料领域的研究热点。高熵合金处于相图中心区域,具有广阔的合金成分空间和组织结构形成可能;成分和制备工艺的协同调控,能够获得更丰富的组织结构;非常规的化学结构有望突破传统抗磨、润滑合金的性能极限。本文讨论了耐磨高熵合金的分类,分析了化学活泼金属、软金属、难熔金属的添加对高熵合金抗磨、润滑性能的影响规律;总结了非金属元素和陶瓷相的添加对高熵合金基复合材料摩擦磨损性能的影响;综述了热处理和表面工程技术对高熵合金表面组织结构和摩擦磨损行为的作用;讨论了苛刻工况下抗磨润滑高熵合金的设计方法。对未来高熵合金在摩擦磨损领域的研究和应用进行了展望,高熵合金在解决传统合金的瓶颈问题上具有巨大潜力,如在极端工况下实现稳定润滑抗磨、保证特定功能作用下实现抗磨。

摘要：为了改善旋转导向管喷动床环隙区的干燥性能,提出了附带支管的旋转导向管喷动床的新设计方案,采用油菜籽为原料,研究此新型喷动床的干燥性能。分别以单位质量水的热耗值、油菜籽的最高温度和干燥过程中油菜籽在喷动床柱体中的平均温度为试验指标,对支管式旋转导向管喷动床按L16(45)正交试验设计方法进行了风温、风量、导喷距及支管孔开放率4因素4水平的正交试验,得到以单位质量水热耗值为指标的最优干燥工艺为:风温130.0℃、标态风量为58.0m3/h、导喷距75.0mm、开孔支管的孔开放率67%,最优工艺下单位质量水分热耗值为2736.8kJ/kg,比不带支管的旋转导向管喷动床的最优值3941.4kJ/kg低,说明支管的引入能够降低干燥热耗,可考虑用于放大柱锥形喷动床。

摘要：为快速得出符合顾客体型的服装样板,以男西裤为基准样板,腰围和臀围部位的变更规则为研究对像,格柏CAD为技术开发平台,依据大量人体数据对样板原有的变更规则进行优化和重建,采用BP神经网络算法建立了人体腰围、臀围尺寸变化量与相应的变更规则之间的神经网络模型。直接采用数据与数据的匹配归档,最终实现男西裤腰腹部和臀部变更规则的参数化设计,即给定一个腰围、臀围的变化量就得到一个相应的变更规则,通过调用此变更规则就会自动得出符合这个尺寸的样片,初步实现一人一板,提高了服装的合体度,减少了对样板师的依赖性。

摘要：针对专业课程思政主要存在的问题,主要从专业人才培养要求、课程特点等方面系统性的设计思政目标,选择思政案例以及融入方式。质量管理工具应用案例为例,介绍基于PBL任务驱动的融合课程课程思政的翻转课堂教学设计,分为课前任务布置、课中翻转、课后拓展,通过三个环节层层递进,不仅可以加强学生对专业知识的深入理解,也可以有意识引领学生价值观,使学生真正达到“我知、我信、我行”的有机统一,为高校课程思政建设提供参考借鉴。