Field testing of geosynthetic-reinforced and column-supported earth platforms constructed on soft soil

This paper is focused on the behavior of geosynthetic-reinforced and column-supported (GRCS) earth platforms in soft soil. By analyzing the data of a 15-month long field monitoring project, the bearing behavior and effectiveness of GRCS earth platforms are discussed in detail. It can be found that the soil arching is generated when the filling reaches a certain height. The measured pressure acting on the soil in the center of four piles was smaller than that acting on the soil between two piles. The elongation and the tension of the geogrid located in the soil between piles are both larger than the corresponding values on the pile top. The skin friction of piles is relatively small in the soil layer with low strength and the load transfer of the axial force in those layers is significant; meanwhile, the opposite situation occurs in the soil layer with high strength. The pore water pressure at shallow locations increases slightly with the filling height and is greatly affected by the increasing filling load. The layered settlement is directly proportional to the filling height, and the corresponding amount is relevant to the locations and the properties of specific soil layers. Additionally, the lateral displacement of the embankment increases with greater loading and decreases with increased depth. These suggest that the use of GRCS system can reduce lateral displacements and enhance the stability of an embankment significantly.     

校际共享实验教学中心建设初探——以内江市高校为例

高校普遍存在实验室资源配置重复、使用率低、专业实训教师短缺等问题。文章借鉴欧洲“流动制”教学方式与经验,提出建立校际共享实验教学中心。该中心充分发挥各校的优势实验教学平台和资源,建立共享机制与互认机制,配备专业实训教师,如此便能让学生能够充分享用优秀教育资源,以大力提升大学毕业生社会竞争力和高校办学实力。     

地方师范院校物联网工程专业学生创新能力培养研究

地方师范院校工科专业普遍存在师资薄弱,资源投入不足的问题,导致工科专业学生的动手实践与创新能力不足,无法达到“新工科”专业建设的培养目标。针对此问题,结合内江师范院物联网工程专业在办学过程中遇到的问题,分别从优化师资配置、校企合作共建课程、采用项目学习法教学、建立以解决问题为核心的评价标准等几方面进行改革。通过方案实施,学生的动手实践能力与创新能力得到了明显提升。     

基于机器学习方法的入侵检测技术的研究

入侵检测技术是近20年来才出现的一种有效保护网络系统免受网络攻击的新型网络安全技术.随着网络技术的迅速发展、安全问题的日益突出,传统的入侵检测系统已难以满足对越来越复杂的网络攻击的检测任务,将机器学习的技术引入到入侵监测系统之中以有效地提高系统性能,已成为入侵检测技术的研究热点.本文主要介绍了入侵检测系统的基本结构以及几种机器学习方法在入侵检测中的应用,其中包括:基于贝叶斯分类的方法、基于神经网络的方法、基于数据挖掘的方法与基于支持向量机的方法.     

BPDI—E无龟甲网带钢丝纤维隔热耐磨衬里的应用

通过与国外类似机械喷涂料的对比，介绍了国产的无龟甲网双层衬里料的性能及使用情况；简述了机械喷涂工艺和施工操作要点。     

喷涂聚脲弹性体技术的发展历程

重点介绍了喷涂聚脲弹性体技术的发展进程和推广普及情况。     

提高我国隧道与地下工程施工技术水平

在21世纪即将到来之际，就我国在21世纪隧道与地下工程需求，当前我国隧道与地下工程施工技术现状、存在主要问题及解决对策作了较全面阐述。     

尖底杯在古代制盐工艺流程中的功能研究

尖底杯是商周时期广泛分布于重庆峡江地区的一种陶容器,普遍认为它是与古代盐业有关的一种陶器。本文分析了各遗址中尖底杯的不同堆积景观,指出了它们与盐业生产和消费的对应关系;另从微痕观察等角度进行了多方面论证,认为尖底杯不是晒盐或熬盐的器具,而是制作盐模的工具,并分析了其具体使用方法和其它功能。     

利用冷媒水降低制氮装置预冷空气温度

针对气体车间制氮装置预冷空气温度过高的问题，提出了利用冷媒水降低预冷空气温度的措施及工艺改造方案，并对空气冷却器的工艺计算做了较详细的介绍。     

A Lotus-Petiole-Inspired Hierarchical Design with Hydrophilic/Hydrophobic Management for Enhanced Solar Water Purification

Solar-driven vapor generation offers an affordable and sustainable approach to solve global freshwater scarcity. Creating interfacial solar evaporators capable of increasing water production rates matching human water requirements is highly desirable but challenging due to the slow water transportation dynamics and unavoidable oil-fouling. Herein, a bio-inspired lotus-petiole-mimetic microstructured graphene/poly(N-acryloyl glycinamide) solar evaporator with integrated hydrophilic and hydrophobic microregions is developed. Through accurate control of the supramolecular interactions, the optimized solar evaporator incorporating unique structural features and wettability shows high light harvesting, enhanced water activation, and reduced energy demand for water vaporization, enabling a groundbreaking comprehensive performance along evaporation rate up to 3.4 kg m⁻² h⁻¹ and energy conversion efficiency of ≈93% under one sun irradiation (1 kW m⁻²). Molecular dynamics simulations reveal that the abundant hydrogen bonding sites of the polymeric networks can thermodynamically modulate the escape behavior of water molecules. Notably, neither decrease in evaporation rate nor fouling on solar evaporators is observed during the prolonged purification process toward nano/submicrometer emulsions, oily brines, actual seawater, and domestic wastewater. This study provides distinctive insights into water evaporation behaviors at a molecular level and pioneers a rational strategy to design high-yield freshwater-generation systems for wastewater containing complex contaminants.