Results 91 to 100 of about 381,507 (231)

Application of IR/SEM and Other Modern Instruments for Mineral Identification

open access: yesYankuang ceshi, 2014
Due to the limitations of resolution and magnification for the traditional optical microscope, qualitative analysis for fine particles is inaccurate and quantitative analysis of minerals contains errors, which makes it impossible to obtain accurate nano ...
DU Gu   +4 more
doaj   +2 more sources

Efeito da inclusão de fitase e farelo de trigo na dieta de frangos de corte sobre a composição química da tíbia. [PDF]

open access: yes, 2015
Para avaliar o efeito da inclusão de fitase e farelo de trigo sobre o teor de cálcio, fósforo, matéria mineral e a relação Ca:P na tíbia de frangos de corte, foram alojadas 384 aves, distribuídas em quatro tratamentos em um arranjo fatorial 2x2 em ...
AVILA, V. S. de   +5 more
core  

Applications of fluid inclusions in the study and exploration of mineral deposits

open access: yesEuropean Journal of Mineralogy, 1991
Fluid inclusions (FI) trapped in minerals represent the most direct evidence of the fluid phase attending a large variety of geological phenomena. Therefore, their investigation finds increasing application in many facets of the Earth sciences, and most notably in the study and exploration of mineral deposits.
openaire   +3 more sources

Empirical Analysis of EIP-3675: Miner Dynamics, Transaction Fees, and Transaction Time [PDF]

open access: yesarXiv
The Ethereum Improvement Proposal 3675 (EIP-3675) marks a significant shift, transitioning from a Proof of Work (PoW) to a Proof of Stake (PoS) consensus mechanism. This transition resulted in a staggering 99.95% decrease in energy consumption. However, the transition prompts two critical questions: (1). How does EIP-3675 affect miners' dynamics?
arxiv  

Discovery of new mineral addibischoffite, Ca_2Al_6Al_6O_(20) ,IN A Ca-Al-Rich refractory inclusion from the Acfer 214 CH3 meteorite [PDF]

open access: yes, 2016
Introduction: During a mineralogy investigation of the Acfer 214 CH3 carbonaceous chondrite, a new calcium aluminate mineral, named “addibischoffite”, Ca_2Al_6Al_6O_(20) with the P-1 aenigmatite structure, was identified in a Ca-Al-rich inclusion (CAI ...
Krot, Alexander N.   +2 more
core  

Raman-based geobarometry of ultrahigh-pressure metamorphic rocks: applications, problems, and perspectives [PDF]

open access: yes, 2010
Raman-based geobarometry has recently become increasingly popular because it is an elegant way to obtain information on peak metamorphic conditions or the entire pressure-temperature-time (P-T-t) path of metamorphic rocks, especially those formed under ...
Korsakov, Andrey V.   +2 more
core   +2 more sources

Mineral inclusions in rutile: A novel recorder of HP-UHP metamorphism

open access: yesEarth and Planetary Science Letters, 2016
The ability to accurately constrain the secular record of high- and ultra-high pressure metamorphism on Earth is potentially hampered as these rocks are metastable and prone to retrogression, particularly during exhumation. Rutile is among the most widespread and best preserved minerals in high- and ultra-high pressure rocks and a hitherto untested ...
Hart, Emma   +4 more
openaire   +7 more sources

Analysis of bone osteometry, mineralization, mechanical and histomorphometrical properties of tibiotarsus in broiler chickens demonstrates a influence of dietary chickpea seeds (Cicer arietinum L.) inclusion as a primary protein source.

open access: yesPLoS ONE, 2018
This study was focused on analyzing the effects of dietary inclusion of raw chickpea seed as a replacement of soybean meal as a primary protein source on bone structure in broiler chickens. Broiler chickens (n = 160) received in their diet either soybean
Siemowit Muszyński   +15 more
doaj   +1 more source

No Transaction Fees? No Problem! Achieving Fairness in Transaction Fee Mechanism Design [PDF]

open access: yesarXiv
The recently proposed Transaction Fee Mechanism (TFM) literature studies the strategic interaction between the miner of a block and the transaction creators (or users) in a blockchain. In a TFM, the miner includes transactions that maximize its utility while users submit fees for a slot in the block.
arxiv  

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