Results 71 to 80 of about 156,182 (239)
Chiseling and gypsum application affecting soil physical attributes, root growth and soybean yield
Revista Ciência Agronômica, 2019 This study aimed to evaluate the effect of chiseling and gypsum application on soil physical properties, soybean root growth and grain yield. An experiment was carried out in Londrina, Paraná state, Brazil, under a randomized complete block design, with ...
Esmael Lopes dos Santos +4 more
doaj +1 more source
Seismic analysis and design of tunnels within fault ground: A review
Deep Underground Science and Engineering, EarlyView.The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang +6 more
wiley +1 more source
GeogacetaThe Polemi basin (S Cyprus) records a well exposed Messinian Salinity Crisis (MSC) evaporite succession divided into three lithostratigraphic units: Lower Gypsum, Intermediate Gypsum Breccia, and Upper Gypsum.
David Artiaga Torres +3 more
doaj +1 more source
Package Hermeticity Testing with Thermal Transient Measurements [PDF]
, 2008 The rapid incursion of new technologies such as MEMS and smart sensor device manufacturing requires new tailor-made packaging designs. In many applications these devices are exposed to humid environments.
Rencz, M., Vass-Varnai, Andras
core +2 more sources
a-Hemihydrate Gypsum from Flue Gas Desulphurization Gypsum
Materials Science, 2013 In this work, properties of sulphate technogenic raw material – flue gas desulphurization (FGD) gypsum have been investigated in order to obtain α-hemihydrate gypsum as gypsum binding material. FGD gypsum is produced as a by-product during the process of desulphurization of exhaust gas emitted in power stations heated by fuel containing sulphur. It has
Leškevičienė, Violeta +2 more
openaire +3 more sources
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Cement phases are good materials for radiative cooling thanks to the selective emissivity in IR ATW. Cement powders have high reflectance of solar radiation which reduces the thermal losses. The onset of the absorption curves is defined by bound excitons. Sulfates have higher radiated powers and reflectance than calcium silicates.
Jozef Janovec +3 more
wiley +1 more source
Energy Science &Engineering, EarlyView.This work reveals the “C‐Y,” double “Y,” “π,” and “Y” fracture modes of thick, hard strata and their progressive breaking process (O‐F‐R/S mode), providing a theoretical basis for controlling strong ground pressure in deep mining. ABSTRACT In response to the dynamic hazards caused by the fracture of thick‐hard strata in deep mining, this study ...
Meilu Yu, Jianping Zuo
wiley +1 more source
The Rhyming Peg Mnemonic Device Applied to Learning the Mohs Scale of Hardness [PDF]
, 2003 NOTE: This is a large file, 55.7mb in size! This article describes the use of the rhyming peg mnemonic device to teach Moh's scale of hardness. The "pegs" consist of a set of words, each rhyming with a number from one to ten, to which the mineral names ...
Audrey Rule
core +1 more source
Energy Science &Engineering, EarlyView.Based on field outcrop data, core descriptions, comprehensive thin section data (plain, cast, and fluorescent), scanning electron microscopy, whole rock analysis via X‐ray diffraction, physical property tests, element logging, core recording, and oil pilot tests, we propose utilizing a mature and practical three component classification method for ...
Lin Xie +7 more
wiley +1 more source
In-situ early age hydration of cement-based materials by synchrotron X-ray powder diffraction [PDF]
, 2015 Cement based binders are building materials of worldwide importance. Since these samples are very complex, the knowledge/control of their mineralogical composition are essential to design and predict materials with specific/improved performance. Rietveld
Chou, K. W. +8 more
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