A diode-pumped alkali laser (DPAL) provides the significant promise for high-powered performances. In this paper, a mathematical model is introduced for examination of the kinetic processes of a diode-pumped cesium vapor hollow-core photonic-crystal fiber (HC-PCF) laser, in which the cesium vapor is filled in the center hole of a photonic-bandgap fiber instead of a glass cell. The influence of ...

In this paper, the influence of water glass types, modulus glass, alkali content, consumption, and plant fibers on mechanical strengths alkali-activated blast furnace slag powder (BFS) is investigated. Moreover, fiber types pretreatment measuring temperature performance BFS are further considered. Results indicate that activated by potassium silicate shows higher than sodium silicate. The with ...

We used a special-purpose glass microfiber sample, Johns-Manville Code 100/475, to study the effects of various acid and alkali treatments on biological activity as assessed by inflammation in the mouse peritoneal cavity, the leaching of Si, and the phase contrast optical microscopy (PCOM) fiber number. We used mild and medium treatments with oxalic acid and Tris buffer and harsh treatment with...

Glass fiber reinforced cement (GRC) is an excellent composite for architects and engineers because it can be molded to produce laminar panels or create complicated designs. GRC a fine concrete with alkali-resistant glass fibers at 3–5% per mass. However, durability limited of the aggressiveness alkaline medium produced during Portland hydration (effect portlandite). The objective this study ass...

during the last decades a new class of materials named fiber/metal laminates (fmls) was introduced. it is a hybrid composite consisting of alternating thin layers of metal sheets and fiber-reinforced composite material. fmls have both low weight and good mechanical properties. in this study, the impact behavior of this attractive material is investigated. the effect of fiber angle, stacking seq...

Fiber-reinforced cementitious matrix (FRCM) and steel-reinforced grout (SRG) have been increasingly applied as externally bonded reinforcement to masonry members in the last few years. Unlike fiber-reinforced polymer (FRP), FRCM SRG good performance when exposed (relatively) high temperature compatibility with inorganic substrates, they can be wet surfaces at (reasonably) low temperatures. Alth...