Results 71 to 80 of about 37,987 (209)

Geochemical assessment of the Pabdeh Formation from the perspective of conventional and unconventional hydrocarbon resources, southwest of Iran [PDF]

Journal of Stratigraphy and Sedimentology Researches
:Organic matter is abundant in the shales and marls of the Pabdeh Formation in the southwestern Iran . They can be considered as a conventional or unconventional petroleum system in the region.
Ehsan Hosseiny, Ali Beirami, Amir Amini Mostafaabadi   +2 more
doaj   +1 more source

The 19th entury iron architecture of industrial buildings. A formal and constructive comparison between two case studies [PDF]

, 2018
The paper analyzes the features of the 19th century industrial architecture and the application of metallic structures combined with formal and architectural expressions that frequently concealed or mitigated their presence.
Bosch González, Montserrat, Putzolu, Rossella   +1 more
core  

Winston Churchill and South Africa: An Enduring, yet Debatable Connection, 1899–1955

History, EarlyView.
Abstract The article traces Churchill's engagement with South Africa, from his time as a newspaper correspondent during the Anglo‐Boer War to his services in both Liberal and Conservative cabinets as well as, ultimately, his premiership. The discussion highlights three phases in this relationship.
LUVUYO WOTSHELA
wiley   +1 more source

Geochemical analysis of brine samples for exploration of Borate deposits in the South of Sabzevar

Journal of Economic Geology, 2016
Introduction Mohammad-abad Oryan is the only potential source of borate in the North-east of Iran located in 50 km South of Sabzevar. The area is located in tuff marl, tuffaceous marl, volcanic braccia and tuff braccia structures.
Mahdi Bemani, Seyed Hossein Mojtahedzadeh, Amir Hossein Kouhsari   +2 more
doaj  

Oxidation characteristics of porous Ni-12 wt%Cr alloy at 1000 °C in air

Ain Shams Engineering Journal, 2018
The oxidation kinetics of porous Ni-12 wt%Cr alloy with 23.7% porosity was investigated for 100 h at 1000 °C in air. The phases forming the oxide scale were determined by using X-ray diffractometry.
Lamiaa Z. Mohamed, Wafaa A. Ghanem, Omayma A. El kady, Mohamed.M. Lotfy, Hafiz A. Ahmed, Fawzi A. Elrefaie   +5 more
doaj   +1 more source

Review of man-made mineral formations accumulation and prospects of their developing in mining industrial regions in Ukraine [PDF]

, 2019
Purpose. Analysis of the man-made mineral formations of ore mining and smelting, fuel and energy complexes development accumulation, location and prospects amount in the Dnipropetrovsk region. Methods. Comprehensive approach, including analysis of state
Kuzmenko, O, Lozynskyi, V, Petlovanyi, M, Popovych, V, Sai, K, Saik, P   +5 more
core   +1 more source

‘You Load Sixteen Tons, What Do You Get?’. The Jodłowno Hoard (Pomerania, Poland) as Evidence of Long‐Distance Contacts in the Early Iron Age

Archaeometry, EarlyView.
ABSTRACT This study presents multifaceted analyses of metal artefacts from the Jodłowno Hoard (Northern Poland), revealing that the metal originated from Iberian polymetallic ore deposits. Transported as raw ingots via Atlantic maritime routes, this copper was reworked locally into regionally distinctive forms.
K. Nowak, P. Gan, Z. Stos‐Gale, K. Cywa, J. Karasiński   +4 more
wiley   +1 more source

New generation of ecofriendly reagents based on organosolv lignin nanoparticles: Environmental assessment for an Au flotation circuit [PDF]

Journal of Mining and Metallurgy. Section A: Mining
Froth flotation is the leading process for the selective separation of minerals and the beneficiation of ores. The principle of the method depends on the different wettability properties of the minerals, specifically on the hydrophobicity of the surfaces,
Peppas A., Politi C., Pantazakou E., Skenderas D.   +3 more
doaj   +1 more source

Tin–Lead Sewn Tokens From 13th‐Century Gdańsk: Assessing Local and Non‐Local Production Through Archaeometric Analysis

Archaeometry, EarlyView.
ABSTRACT This study presents the results of an interdisciplinary investigation of 98 tin–lead sewn tokens from 13th‐century Gdańsk, the largest assemblage of its kind in Central Europe. Combining archaeological context, typology, SEM‐EDS and lead isotope analysis, the research explores provenance, production and function.
Sławomir Wadyl, Jakub Karczewski, Ewelina Miśta‐Jakubowska, Jakub Karasiński, Klaudia Tetfejer   +4 more
wiley   +1 more source

Experimental validation of a fluid dynamics based model of the UF Falcon concentrator in the ultrafine range [PDF]

, 2012
The process of separating ultrafine particles, say below 80 μm, on the basis of density is a true technical challenge. Indeed, the separation process itself becomes very much size dependent with such fine particles, so that large enough density ...
Bourgeois, Florent, Climent, Éric, Kroll-Rabotin, Jean-Sébastien   +2 more
core   +2 more sources