Results 91 to 100 of about 36,340 (282)

Comparative Estimation of Urban Development in China’s Cities Using Socioeconomic and DMSP/OLS Night Light Data

open access: yesRemote Sensing, 2014
China has been undergoing a remarkably rapid urbanization process in the last several decades. Urbanization is a complicated phenomenon involving imbalanced transformation processes, such as population migrations, economic advancements and human ...
Junfu Fan   +4 more
doaj   +1 more source

Multimodal Mechanical Testing of Additively Manufactured Ti6Al4V Lattice Structures: Compression, Bending, and Fatigue

open access: yesAdvanced Engineering Materials, EarlyView.
In this experimental study, the mechanical properties of additively manufactured Ti‐6Al‐4V lattice structures of different geometries are characterized using compression, four point bending and fatigue testing. While TPMS designs show superior fatigue resistance, SplitP and Honeycomb lattice structures combine high stiffness and strength. The resulting
Klaus Burkart   +3 more
wiley   +1 more source

A Thermodynamic 3D Model for the Simulation of Diffusion‐Controlled Alloying Processes in Heterogeneous Material Structures

open access: yesAdvanced Engineering Materials, EarlyView.
A numerical model resulting from irreversible thermodynamics for describing transport processes is introduced, focusing on thermodynamic activity gradients as the actual driving force for diffusion. Implemented in CUDA C++ and using CalPhaD methods for determining the necessary activity data, the model accurately simulates interdiffusion in aluminum ...
Ulrich Holländer   +3 more
wiley   +1 more source

Post-peak compressive response and energy absorption of ternary pozzolanic mortar reinforced with PVA fibers

open access: yesOpen Engineering
Brittleness of concrete and poor post-cracking performance is a big challenge to develop ductile and sustainable cementitious materials. This paper investigates the impact of ternary pozzolanic blend and PVA fiber on mechanical performance and the post ...
Aday Luma Ahmed
doaj   +1 more source

Model development of isopropanol dehydration from binary and ternary mixtures with pervaporation: Comparison and environmental evaluation of hybrid separation methods

open access: yesResults in Engineering
This study investigates the separation of isopropanol (IPA) from water and ethanol (EtOH) using hybrid distillation-hydrophilic pervaporation (D+HPV), distillation-hydrophilic pervaporation-distillation (D+HPV+D), and distillation-hydrophilic ...
Huyen Trang Do Thi   +2 more
doaj   +1 more source

A local balance property of episturmian words

open access: yes, 2007
We prove that episturmian words and Arnoux-Rauzy sequences can be characterized using a local balance property. We also give a new characterization of epistandard words and show that the set of finite words that are not factors of an episturmian word is ...
G. Richomme A, Gwénaël Richomme
core   +3 more sources

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti   +11 more
wiley   +1 more source

Anaerobic Co-Digestion of Swine Wastewater, Cheese Whey and Organic Waste: Performance Optimization Through Mixture Design

open access: yesBiomass
Anaerobic co-digestion of agro-industrial and municipal biowastes can enhance methane production, but the optimal mixture depends on nonlinear interactions among substrates.
Verónica Córdoba, Gianluca Ottolina
doaj   +1 more source

Balancing performance of epoxidized soybean oil (ESO)/poly(lactic acid) composites: Synergistic effects of carbon nanotubes and tannic acid-induced crosslinking of ESO

open access: yeseXPRESS Polymer Letters, 2019
Highly tough and biobased epoxidized soybean oil (ESO)/poly(lactic acid) (PLA) blends were formulated through in-situ formation of tannic acid-crosslinked ESO (TA-c-ESO) oligomer as a dispersed phase with PLA matrix by dynamic vulcanization technique. To
W. Liu   +5 more
doaj   +1 more source

A family of balanced ternary designs with block size four [PDF]

open access: yesBulletin of the Australian Mathematical Society, 1986
This paper shows the existence of an infinite family of cyclic balanced ternary designs where the block size is 4, the index 2 and each block contains precisely one repeated element.
openaire   +2 more sources

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