一种新型海军礼炮

针对我国现有海军礼炮存在的问题,对海军礼炮的特殊需求和应用环境进行了深入研究,提出了一种结构可靠简便、模块化组合、装配快捷,单个部件重量轻、便于在舰艇上组合、拆装的新型海军礼炮方案,具有操作简单、发射安全、机动灵活、占用空间小的特点;经试验结果及应用情况表明,新型海军礼炮方案成功可行,满足了部队使用要求,解决了在水面舰艇上使用海军礼炮的问题。     

起爆装置对聚能杆式射流成型影响的数值模拟研究

为研究VESF板对聚能杆式射流成型的影响,利用非线性动力学分析软件AUTODYN-2D分别就VESF板的材料与形状对侵彻体成型的影响进行数值模拟。结果表明:板形状为K字形、长方形、三角形时,产生最佳爆轰波形所对应的VESF板材料分别为钨、铜和钢;三角形的VESF板产生的爆轰波形最佳,形成的射流速度较高,形态较好。通过调整VESF板的材料与形状可达到调整装药起爆方式的目的。     

校企合作化学与材料专业工程创新训练平台的规划与建设

强化工程训练教学环节,是地方本科学校应用技术人才培养模式创新的核心内容。本文从指导思想、原则和目标、具体措施等方面进行阐述和探讨,论述了化学与材料专业工程创新训练平台规划与建设的内容和保证其正常运行的措施。     

1-氨基-2-(N,N-二甲氨基)-4-羟基-蒽醌的合成新方法

以分散红60和DMF为原料,在碳酸钾作用下反应制备得到1-氨基-2-(N,N-二甲氨基)-4-羟基-蒽醌,产品收率92.8%。     

钛基多元大孔材料光催化降解有机废水

TiO2由于光催化活性高、价格低廉、无毒等特点受到人们广泛关注。人们将形状不规则粉体TiO2制备成纳米大孔空心球等形状,以提高催化剂的悬浮性能和回收性能。同时,为了进一步提高TiO2对有机废水的光催化降解性能,对TiO2进行了掺杂改性的研究。文章主要介绍了掺杂改性大孔TiO2在光催化降解有机废水中的研究。     

Enhanced mechanical,thermal and dielectric properties of polyimide nanocomposites containing SiCp (SiCw) nanofillers for high energy-storage applications

Journal of Polymer Research - In this paper, we aimed to develop the nanocarrier based on poly (N-isopropyl acrylamide)—allyl acetoacetate grafted MoS2 nanosheets. The obtained polymer...     

Preparation of antimicrobial activated carbon fiber for adsorption

Journal of Porous Materials - Activated carbon fiber (ACF) is often used as efficient adsorption material for removal of contaminants from water. However, the propagation of microorganism on ACF...     

Fabrication of shish-kebab-structured carbon nanotube/poly(ε-caprolactone) composite nanofibers for potential tissue engineering applications

The electrospinning process was applied to fabricate the nanofibers of biodegradable poly(ε-caprolactone)(PCL) in which different contents of multiwalled carbon nanotubes(MWCNTs) were embedded. Afterward,the electrospun nanofibers were successfully decorated with shish-kebab structure via a self-induced crystallization technique. The topographical features and the mechanical properties of the composite scaffolds were characterized,and the biocompatibility of the material was assessed by using human osteogenic sarcoma osteoblasts(MG-63 cells). The carbon nanotube(CNT) concentration is found to affect the fiber diameter and mechanical properties of electrospun nanofibers and the periodic distance of the shish-kebab architecture. Cellular attachment and proliferation assays reveal that 0.5 wt% CNT-embedded PCL scaffold shows enhanced biocompatibility with MG-63 cells than their counterparts made of neat PCL, and the collagen-like nanotopology provided by the shish-kebab structure further facilitates the cell adhesion and proliferation. The superior interactions between cells and scaffolds demonstrate that the shish-kebab-structured CNTs/PCL nanofibers may be promising candidate for tissue engineering scaffold application.     

预应力锚索技术在公路高边坡施工中的应用分析

本文通过对预应力锚索技术在公路高边坡施工中技术要点的分析,对预应力锚索的应用做了详细地阐述,以供读者阅读和参考。