Petrography and physicomechanical properties of alkali granites, alkali quartz syenite, and nepheline syenite from Ambela, NW Pakistan, have been investigated. Whereas the alkali quartz syenite and most of the alkali granites are megaporphyritic, the nepheline syenite and some of the alkali granites are microporphyritic. Their phenocryst shape and size and abundance of groundmass are also diffe...

The results of our infrared reflectance studies of single and mixed alkali borate glasses are reviewed and discussed in the context of the network structure and the interactions between alkali cations and their sites in the glass. In particular, we focus on the strong influence of the alkali cation type, content, and alkali subsitution on the structure of the network building units. The dominan...

This study aims to observe the impact of fiber lengths and NaOH treatment on tensile properties composite materials made from borassus polyester matrix. used fibers fruit, Wax Mirror Glass, Polyester Alkali (NaOH). The was carried out by soaking in a 15% solution for 2 hours. length this were short (<1cm) long (>8 cm). composition number matrix calculated based volume fraction test spesim...

In the reported work, fibers were extracted from water hyacinth plant using a custom-made fiber decorticating machine. The subjected to aerobic and anaerobic retting, followed by alkali treatment. yield physico-mechanical properties of determined compared with other lignocellulosic fibers. also chemical composition analysis, Fourier Transform Infrared spectroscopy, X-Ray diffraction Scanning El...

Managing the rapidly changing saline-alkali land under cultivation in the coastal areas of China is important not only for mitigating the negative impacts of such land on the environment, but also for ensuring long-term sustainability of agriculture. In this light, setting up rapid monitoring systems to assist decision-making in developing sustainable management plans is therefore an absolute n...