Results 51 to 60 of about 134,747 (301)

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

open access: yesAdvanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm   +5 more
wiley   +1 more source

Geochemical evolution of groundwater in an evaporite karst system: Brujuelo area (Jaén, Spain) [PDF]

open access: yes, 2016
Chemical evolution of groundwater along two main flowpaths was studied in Brujuelo area, an evaporite plateau characterized by the presence of wetlands and drained by hyper-saline springs.
Andreo-Navarro, Bartolome   +3 more
core  

Investigation of Thermo‐Chemical Processes in Commercial MgO‐C Refractory Bricks With and Without MgO‐C Recyclate at Elevated Temperatures

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm   +6 more
wiley   +1 more source

Sources of mineral waters in the area of the eastern part of Beskid Żywiecki [PDF]

open access: yes, 2013
We wschodniej części Beskidu Żywieckiego występuje wiele źródeł, które były znane i opisywane już na przełomie XVII i XVIII w. W artykule przedstawiono wykaz (wraz z krótką charakterystyką) źródeł siarczkowych i solankowych oraz źródeł z ochrą ...
Franczak, Paweł
core  

Toward Low‐Consumable Anodes: Process Simulation and Prospective Life Cycle Assessment of NiFe2O4‐NiO‐Ni‐Cu vs. Prebaked Anodes for Aluminum Production with use of Molten Salt Electrolysis

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐consumable nickel ferrite‐based anodes for the Hall–Héroult process are compared with conventional prebaked carbon anodes using thermodynamic simulation and prospective life cycle assessment under contrasting future electricity system pathways from 2025 to 2050.
Felipe Alejandro Garcia Paz   +6 more
wiley   +1 more source

MINERAL SPRINGS OF CALIFORNIA. [PDF]

open access: yesJAMA: The Journal of the American Medical Association, 1894
From the earliest dawn of history, mineral waters have been highly extolled for their medicinal properties. The ancient Egyptians and Arabians used mineral waters in the treatment of many diseases. The hot sulphurous springs of Tiberias (now called Tabareah) have been in extensive use for the past 3,000 years, as they are at the present day, by ...
openaire   +1 more source

Carbogaseous spring waters, coldwater geysers and dry CO2 exhalations in the tectonic window of the Lower Engadine Valley, Switzerland [PDF]

open access: yes, 2018
.: In the region of Scuol-Tarasp in the Lower Engadine Valley in the Eastern Swiss Alps, there are a variety of phenomena related to a geogenetic CO2 production, including carbogaseous mineral springs, previously active coldwater geysers and dry gas ...
Bissig, Pius   +4 more
core  

Spring and surface water quality of the Cyprus ophiolites [PDF]

open access: yes, 2002
A survey of surface, spring and borehole waters associated with the ophiolite rocks of Cyprus shows five broad water types (1) Mg-HCO3, (2) Na-SO4-Cl-HCO3, (3) Na-Ca-Cl-SO4-OH-CO3, (4) Na-Cl-SO4 and (5) Ca-SO4.
Neal, C., Shand, P.
core   +2 more sources

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

open access: yesAdvanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar   +7 more
wiley   +1 more source

THE CHLOROSODIUM MINERAL WATERS IN ALBA COUNTY, LASTING TOURISTIC PROTECTION AND CAPITALIZATION [PDF]

open access: yesAerul şi Apa: Componente ale Mediului, 2013
This study represents a continuation of the research and assessment of the resources of chlorosodium mineral waters on the territory of the Transylvanian Depression, especially regarding the emersion of salty springs, which are still not to be found in ...
N. CIANGĂ, D. COSTEA
doaj  

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