Hydrothermal synthesis of reduced graphene oxide for supercapacitor electrode materials and the effect of added sodium alginate on its structure and performance

Journal of Materials Science: Materials in Electronics - With the advantages of high power density, long cycle life, and fast charging, supercapacitor has become a research hotspot in recent...     

Particle size distribution and homogenisation efficiency in high-pressure homogenisation of wheat germ oil-water system

Wheat germ oil (WGO) is well-known as a good source of vegetable oil due to its nutrients and health benefits. Emulsification is a process that improves the incorporation of oil into food. High-pressure homogenisation (HPH) is a nonthermal and soft technique with enormous potential in oil-in-water emulsification. This paper focussed on the application of HPH for emulsification of WGO-in-water system. Influences of homogenisation pressure (100–300 bar), oil fraction (10–20% v/v) and lecithin adding (0–0.2% w/v of content) on the homogenisation were evaluated based on distribution of particles diameter and homogenisation efficiency. The increase in operating pressure and lecithin ratio decreased the particle size and increased the emulsion stability, and vice versa for oil fraction. The findings imply that the investigated factors significantly influenced particle size and emulsion system stability. The regression model between mean particle diameter and technical conditions of emulsion was established. With HPH treatment conditions of 300 bar operating pressure, 10% (v/v) oil fraction and 0.2% (w/v) lecithin created an emulsion system with a mean particle size of 3.32 µm, more than 50% of the volume of particles smaller than 1.5 µm of diameter and the homogenisation efficiency of 98.61%. HPH exhibits high efficiency and potential in WGO-in-water emulsification application.     

Scenario analysis on medical treatments of patients with knee osteoarthritis

The Journal of Supercomputing - In developed countries, osteoarthritis (OA) has been among the ten most severe disability diseases in recent years. Approximately, 10% of the world’s...     

膨胀石墨的尺寸效应及其对油吸附的影响

用不同粒度的石墨在相同条件下酸化、高温膨胀，可获得膨胀倍数不同的膨胀石墨。通过扫描电镜及X射线衍射等观察膨胀石墨结构，证实在生产条件如酸氧化工艺、膨胀温度等相同时，鳞片石墨的粒度越大则膨胀倍数越高，对油的吸附性能越好。     

FHT型缓冲托罐装置在竖井提升中的应用

介绍一种缓冲托罐装置,主要用来解决竖井提升中的容器过卷撞击防撞梁后的托罐问题,既可用于缠绕式提升机,又可用于摩擦式提升机。重点介绍了该装置的工作原理、特点、安装调试和使用维护方面的情况。该装置经过4a多的使用,证明是可行的。     

轻型XRF分析仪在铁精矿品质快速检测中的应用

介绍了应用国产轻型高灵敏度XRF分析仪快速检测铁精矿中TFe及有害元素的技术与方法。该仪器基于新型高分辨率探测器和微机多道谱仪系统 ,具有轻便、易操作的特点 ,可同时快速测定铁矿石中TFe、Ti、V、Mn、SiO2 、Al2 O3 、S、P、K2 O、CaO的含量 ,分析检出限为 (1.0× 10 -4～ 1.0× 10 -3 ) % ,可用于铁矿石 (原矿、精矿、尾矿 )、烧结矿、铁合金等的快速检测及原矿分析。试验表明 ,本方法测定铁精矿中TFe、S、P、SiO2 、K2 O含量的平均绝对误差分别为 0 2 2 %、0 0 5 5 %、0 0 10 %、0 12 5 %、0 0 0 8% ,单样分析仅需 30 0s。     

探水注浆工作在北洺河铁矿的实践

通过北氵名河铁矿基建过程中探水注浆的实践 ,提出采用探水注浆方法通过风化蚀变严重、裂隙岩溶发育 ,且被泥沙充填复杂地层的技术措施 ,并对有关参数及注浆结束标准进行探讨     

非金属矿在MDI型聚氨酯场地铺面材料中的应用

探讨了滑石粉、陶土、白炭黑等非金属矿材料在运动场所使用的MDI型聚氨酯铺面材料中的应用。结果表明,由该类材料所制备的塑胶跑道不含甲苯二异氰酸酯(TDI)、铅和汞等毒害物质,消除了这些毒物在生产和使用过程中的污染和危害。样品性能达到GB/T14833-93《塑胶跑道》标准。     

浅谈建筑施工扣件式钢管脚手架安全技术监理

文章主要阐述了对扣件式钢管脚手架施工的事前控制和过程检查的安全监理工作。     

箱形网架结构简化计算方法及其计算用表

针对四点简支箱形网架的受力特点 ,推导出箱形网架结构的简化计算公式 ,并得出相应的计算用表。通过与空间桁架位移法计算结果的对比 ,证明所提出的方法是正确的