Geopolymers are known as high strength and durable construction materials but have a brittle fracture. In practice, this results in a sudden collapse at ultimate load, without any chance of preventing the breakdown of parts or of withstanding the stress for some time. Glass fiber usage as a total anisotropic shape acting as a compact structure component should hinder the fracture mechanism. The...

In a previous communication (Katz and Lipsitz, 1935), the effect of a certain synthetic surface-active material on the growth of Mycobacterium smegmatis was discussed; this work has now been extended to include three more compounds, varying in chemical structure. These materials possess substantially the same properties as the alkylated naphthalene sulfonate originally employed, i.e., remarkabl...

Graphene exhibits remarkable properties for various novel applications. One of many appealing applications of graphene would be to fabricate transparent conductive films to replace indium tinoxide (ITO).Theuseof graphene is promisingdue to its high optical transmittance, low resistance, high chemical stability, and high mechanical strength. This, as well as other applications, requires a large ...

Water vapor condensation is commonly observed in nature and routinely used as an effective means of transferring heat with dropwise condensation on nonwetting surfaces exhibiting heat transfer improvement compared to filmwise condensation on wetting surfaces. However, state-of-the-art techniques to promote dropwise condensation rely on functional hydrophobic coatings that either have challenges...

A one-vial formulation of the chemotherapy agent Taxotere(®) (docetaxel) is likely to be commercially available in some countries in 2010. Through control of two significant potential risk factors for crystallization-intervention into the infusion bag (by using a one-step technique) and temperature (by use of refrigerated storage)-it was postulated that the risk of precipitation would be reduce...

this research is aimed to undertake a comparative study on stability and thermal degradation kinetics of un-irradiated and high energy protons irradiated polyvinyl butyral (pvb) based on weight loss analysis and non-isothermal approaches. the weight loss by the un-irradiated pvb upon heating was found to be in two stages but due to high energy protons accelerated exposure following by chemical ...

In this paper, we discuss the dynamical properties of a chemical reactor model including Lyapunov exponents, bifurcation, stability of equilibrium and chaotic attractors as well as necessary conditions for this system to generate chaos. We study the synchronization of chemical reactors model via sliding mode control scheme. The stability of proposed method is proved by Barbalate’s lemma. Numeri...

The aim of this study was to determine the effects of a bacterial inoculant and chemical additives on nutrient composition, in vitro degradation, total loss, aerobic stability, microbiological quality, and fermentative profile of sugarcane silage. Treatments were distributed to forty-eight mini-silos in a 2 × 4 factorial arrangement: two levels of microbial inoculant (INO, 0 or 4 g/t of fresh s...

Density functional theory methods(DFT) and natural bond orbital (NBO) analysis were used to investigate the effects of isomerism and side chain mutation at a microscopic level on the stability, binding energy and NMR/NQR tensors of structural isomers, L- methionylasparagine (Met-Asn) and L- asparagylmethionine (Asn-Met) in the gas phase. The results represented that the isomerism and side chain...