scholarly journals Contribution to Comparative Study of Physical-Chemical Characteristics of Diack Basalt and Bandia Limestone for Use in Railway Engineering

Geomaterials ◽  
2020 ◽  
Vol 10 (02) ◽  
pp. 25-34
Author(s):  
Abdoulaye Diedhiou ◽  
Libasse Sow ◽  
Adama Dione
2020 ◽  
pp. 51-53
Author(s):  
A.F. Shahverdiyeva ◽  
◽  
N.F. Gafarova ◽  
S.A. Balakishiyeva ◽  
F.A. Babayeva ◽  
...  

The article presents the study results of the gas composition contained in the oil fields of Western Absheron, Absheron kupesi and Surakhany in Absheron oil-gas bearing region. These (Surakhany, Continental, Western Absheron, Absheron kupesi) are the oils from offshore fields and differ from each other both by location and physical-chemical characteristics. The gas fraction obtained from West Absheron field oil is rich in ethane, propane, iso- and normal butane; the gas fraction from Absheron kupesi is predominantly rich in methane, ethane, propane, iso- and normal butane and isopentane and the one from Surakhany field is rich in ethane and propane, it contains less methane, iso- and normal butane and pentane than in Absheron kupesi oil. The observations show that the accompanying oil gases from offshore and onshore fields of Absheron oil-gas bearing region vary in quality and quantity as well.


Author(s):  
Camilo A S Ballesteros ◽  
Luiza Mercante ◽  
Augusto Alvarenga ◽  
Murilo Henrique Moreira Facure ◽  
Rodrigo Schneider ◽  
...  

A large variety of engineered nanostructures possessing enzyme-like activities have been proposed recently, which unique physical-chemical characteristics enable remarkable technological advances. In this review, we survey recent advances on nanozymes...


2009 ◽  
Vol 33 ◽  
pp. 264-280 ◽  
Author(s):  
TATIANA BEATRIS TRIBESS ◽  
MARIA AUXILIADORA DE BRITO RODAS ◽  
JUSSARA CARVALHO DE MOURA DELLA TORRE ◽  
CARMEN CECILIA TADINI

2016 ◽  
Vol 869 ◽  
pp. 112-115 ◽  
Author(s):  
Francisca Pereira de Araújo ◽  
Edson Cavalcanti Silva Filho ◽  
João Sammy Nery de Souza ◽  
Josy Anteveli Osajima ◽  
Marcelo Barbosa Furtini

Soil-cement bricks are good examples of environmentally friendly products. This brick is the combination of soil with compacted cement with no combustion in its production. In this work the physical chemical characteristics of the soil from Piaui for producing this material were investigated. Samples of the soil were collected in three potteries from the county of Bom Jesus and pH analysis were carried out, as well as the rate of organic matter, texture, particle density, limits of liquidity and plasticity rates. The results have shown that the soils have acid tones (pH 5,49 a 6,11), which can be neutralized by adding cement, and organic matter percentages up to 1%. The samples have shown predominantly clay-rich textures with adequate plasticity limits, however, values of liquidity limits and particle density above recommended. Altogether, these soils tend to present viability concerning soil-cement brick production, provided that corrections with additives are made in order to minimize this effect.


2013 ◽  
Vol 48 (7) ◽  
pp. 797-800 ◽  
Author(s):  
Sergio Ruffo Roberto ◽  
Adriane Marinho de Assis ◽  
Lilian Yukari Yamamoto ◽  
Lidiane Carla Vilanova Miotto ◽  
Renata Koyama ◽  
...  

The objective of this work was to evaluate the effect of ethephon and of abscisic acid (ABA) application timing on the color of 'Rubi' Table grape. Eight treatments were evaluated: control, without application; ethephon 500 mg L‑1 applied seven days after veraison (7 DAV); and two concentrations of ABA (200 and 400 mg L‑1) arranged with three application timings at 7 DAV, at 15 days before harvest (DBH), and at 7 DAV + 15 DBH. ABA does not modify physical‑chemical characteristics of the cluster and improves the color of grapes, especially when applied twice (7 DAV + 15 DBH) at the concentration of 400 mg L‑1.


AGROINTEK ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 82
Author(s):  
Asnani Asnani ◽  
Abdul Rahim ◽  
Ifall Ifall

<em>This work deals with the effect of banana (sweet plaintain or ‘kepok’ variety) hump flour substituted to wheat flour in the making of noodle, on physical, chemical, and sensory characteristics of noodle.  A completely randomized was employed, with three replicates. Sensory analysis was conducted according to randomized group design. Four proportions of banana hump to wheat flour (10:90, 20:80, 30:70, and 40:60, weight basis) was studied. Results showed that the best physical and chemical characteristics was shown by noodle made from 10:90 proportion of banana hump to wheat flour, with 4.59% water absorption, 0.57% cooking loss, 10.37% water content, 34.21% starch content. However, result of sensory analysis suggested that the most liked noodle was that made from flour proportion of 20:80 with ‘like’ for colour, ‘like very much’ for aroma, ‘like’ for texture, ‘like’ for taste, and ‘like’ for overall preference</em>


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