Results 61 to 70 of about 193,377 (304)
A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm +3 more
wiley +1 more source
The adsorption of Congo red onto titanium dioxide (TiO2) material has been investigated at batch conditions. The effects of contact time (0–60 min), initial pH (3–11), agitation speed (100–500 rpm), temperature (298–343 K), adsorbent dosage (0.5–2 g/L ...
Moussa Abbas
doaj +1 more source
A Langmuir approach on monolayer interactions to investigate surface active peptides [PDF]
The Langmuir Blodgett apparatus provides a versatile system for studying the interfacial properties of peptides and peptide-membrane interactions under controlled conditions.
Dennison, Sarah Rachel +2 more
core
In this communication we investigate two dyes N,N' -dioctadecyl thiacyanine perchlorate (NK) and octadecyl rhodamine B chloride (RhB) in Langmuir and Langmuir-Blodgett (LB) films with or with out a synthetic clay laponite.
Arbeloa +43 more
core +1 more source
Adsorption isotherm on ferrites
Tlıe corrosion behaviour of the prepared Materials was studied by mcans of weight-loss techniquc in stagnant solution of (0.01 M) sulphuric acid in presence of thiourea as an inhibitor. Higher concentration of thiourea reduces the corrosion rate of thc samples and proteetion effi- cicncy of thiourea was found to be 80 % for ferrites Proteetion is ...
A. M. NASSAR +3 more
openaire +3 more sources
The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu +8 more
wiley +1 more source
Removal of Ammonia from the Municipal Waste Treatment Effluents using Natural Minerals
Due to various ecological problems, it is required to remove the ammonia nitrogen from wastewater. Industrial wastewater that was not subjected to any purification was used in this study, while most processes described in the literature were carried out ...
Przemysław Seruga +5 more
doaj +1 more source
Discrete isothermic surfaces. [PDF]
Discrete isothermic surfaces are defined as the maps \(F: \mathbb{Z}^2\to \mathbb{R}^3\) such that all elementary quadrilaterals of the surface have cross ratio \(-1\). It is shown that these discrete surfaces possess properties which are characteristic for smooth isothermic surfaces (Möbius invariance, dual surface).
Pinkall, Ulrich, Bobenko, Alexander
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Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa +9 more
wiley +1 more source
The Isothermal Layer of the Atmosphere [PDF]
APART from other considerations, I think that Mr. Craig's contention (NATURE, January 7, p. 281) as to the isothermal layer is disproved by the results of theodolite observations on ballons-sondes. When a balloon is observed, its altitude above the horizon is in general seen to decrease, showing an increase of wind velocity with height. If Mr.
openaire +5 more sources

