火焰原子吸收光谱法测定芥蓝中钙、镁、铜和铁

火焰原子吸收法测定芥蓝中的钙、镁、铜和铁含量,相对标准偏差为1.45%~2.03%,回收率为96.8%~100.1%。结果表明芥蓝含有丰富的微量元素。     

中国石化成品油二次物流配送优化系统的建设与实施效果

介绍了中国石化成品油二次物流配送优化系统的开发、建设过程以及实施效果,提出了进一步提升该系统的建议.     

Mn2+在Zn2SiO4中的发光

利用Sol-gel法制备掺Mn^2 的Zn2SiO4的前驱体，并将前躯体在弱氧化气氛下在1000℃煅烧2h，得到掺Mn^2 的Zn2SiO4试样。X射线衍射分析确定试样为α-Zn2SiO4晶相。荧光分析测定试样的激发光谱和发射光谱。结果显示Mn^2 掺杂的α-Zn2SiO4可发蓝色和绿色荧光，这一结果显然不同于以前的文献报道。同时，我们讨论了Mn^2 在Zn2SiO4中产生这一新型发光性质的机理。     

微胶囊技术在环氧固化剂中的应用

介绍了微胶囊的发展历程和化学制备方法,微胶囊的释放机理以及在环氧固化剂中的应用。     

静电纺丝纳米纤维膜空气过滤研究进展

静电纺丝纳米纤维膜具有高比表面积、孔径小、孔隙率高、纤维均一性好等优点,在空气过滤及个体防护等领域表现出巨大的应用潜力.总结了近年来国内外关于静电纺丝法制备高效低阻和功能化(抗菌、可降解、疏水和耐高温)新型空气过滤材料的最新研究成果,分析和讨论了现有研究中存在的问题,并对未来的发展方向进行了展望.     

Hyperbola-Logistic叠加模型预测地基沉降

针对Hyperbola模型和Logistic模型的优缺点,提出Hyperbola-Logistic叠加模型,该叠加模型综合了两种单项预测模型的优点,以期达到高精度的预测结果。结合发电厂地基沉降现场观测数据,利用Hyperbola-Logistic叠加模型预测地基沉降,并与单项沉降预测模型的拟合结果进行比较分析。结果表明:与两种单项预测模型的预测结果相比较,叠加模型减小了系统误差,提高了整体的预测精度,拟合结果可靠,适用于发电厂地基沉降量的预测。新模型具有一定的适用性,是一种分析预测地基沉降的有效方法。     

福泉地区磷化工对清水江的污染及其治理对策

在了解清水江流域自然、社会环境、收集和补充监测清水江水质状况，调查清水江流域氟、磷污染源的基础上，对清水江水环境质量现状进行评价，对清水江氟、磷污染现状、污染来源进行分析，得出明确的结论，提出相应的污染防治对策。     

改性硝酸铵的工业制备方法及其性能

硝酸铵饱和溶液中加入表面活性剂辛基三甲基溴化铵，采用真空膨胀结晶技术工业制备一种新型改性硝酸铵，并介绍其性能特点。     

涤纶切片的结晶性能及其对POY结构均匀性的影响

采用ＤＳＣ等方法研究了几种涤纶切片的等速降温结晶性能，提出了用熔融结晶峰的半高宽／峰高的比值、过冷度和结晶度来定量表征的方法，并结合纺丝过程讨论了其对ＰＯＹ成形时结构均匀性的影响。结晶性能差的切片，易得到结构均匀的ＰＯＹ。     

A novel approach for fit analysis of thermal protective clothing using three-dimensional body scanning

The garment fit played an important role in protective performance, comfort and mobility. The purpose of this study is to quantify the air gap to quantitatively characterize a three-dimensional (3-D) garment fit using a 3-D body scanning technique. A method for processing of scanned data was developed to investigate the air gap size and distribution between the clothing and human body. The mesh model formed from nude and clothed body was aligned, superimposed and sectioned using Rapidform software. The air gap size and distribution over the body surface were analyzed. The total air volume was also calculated. The effects of fabric properties and garment size on air gap distribution were explored. The results indicated that average air gap of the fit clothing was around 25–30 mm and the overall air gap distribution was similar. The air gap was unevenly distributed over the body and it was strongly associated with the body parts, fabric properties and garment size. The research will help understand the overall clothing fit and its association with protection, thermal and movement comfort, and provide guidelines for clothing engineers to improve thermal performance and reduce physiological burden.