:, ~ varied most significantly with temperature, ranging from limited slip and twinning at 400°C, limited recrystalliza,t ,tion at 500°C, widespread recrystallization at 600 and 7QOoC, to grain growth at 800-900°C. Variations in ! confining pressure from 0.3 to 2.0 GPa have no apparent effect on calcite deformation microstructures. : Aragonite grew in 10-6-10-7 S-l strain rate tests conducted f...

Ag nanowire-based catalytic liquid marbles are fabricated as miniature reactors, which demonstrate highly efficient, support-free and rate-controllable heterogeneous degradation of methylene blue, with catalytic efficiency close to 100%. Our miniature catalytic liquid marbles are essential for reactions involving highly toxic/hazardous or costly reactants, where small volume preliminary reactio...

This research combines technical, environmental, and economic aspects regarding the utilization of Bege Bahia marble waste (BB) in clinker production. Three different eco-friendly clinkers were produced, investigated, compared with one that is commercially available. BB was used to replace 49.2%, 77%, 80.3% limestone by total amount clinker. Two selected produce cement pastes, their impact on c...

One of the most important techniques in data preprocessing for data mining is feature selection. Real-world data analysis, data mining, classification and modeling problems usually involve a large number of candidate inputs or features. This paper proposes an ant colony optimization (ACO) algorithm for the feature selection problem. The goal is to find the set of features that reveals the best ...

Abstract. A reinvestigation of the type angastonite specimen from Penrice marble quarry, South Australia, shows that published powder X-ray diffraction pattern for mineral corresponds to a mixture crystalline phases plus an amorphous phase. The formula mineral, CaMgAl2(PO4)2(OH)4⋅7H2O, has been found correspond proposal redefinition as phase approved by IMA CNMNC. Amorphous is isotropic with in...

Concrete is the most undisputable and indispensable material being used in infrastructure development throughout the world. The objective of this paper is to utilize marble, granite and Spent Fire Brick waste of different sizes in the manufacturing of concrete bricks, with partial replacement of conventional coarse and fine aggregates with Marble, Granite and Spent Fire Brick waste content up t...

Pulmonary alveolar proteinosis (PAP) is a rarely seen disease of the alveoli, characterized by accumulation of proteinous material, which stains positive with periodic acid Schiff, in the alveoli. Secondary PAP may develop as a result of occupational exposure to materials such as silica and indium. In the paper, together with a review of the relevant literature, we present an uncommon case of a...

I the article several unfinished and semi-finished Roman period artifacts made of Proconnesian marble have been described and discussed. They were discovered in the ancient cities of Odessos and Marcianopolis (in Moesia Inferior) and have been dated to the 2nd-3rd c. AD. Among them are gabled sarcophagi, a fluted capital and two statues: of Heracles and the Thracian Horseman. These finds eviden...