Results 71 to 80 of about 85,974 (294)

Combined Process‐ and Phase‐Field‐Simulation to Predict the Microstructure of Single‐Crystal Ni‐Based Superalloys

open access: yesAdvanced Engineering Materials, EarlyView.
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 Most Vivifying Influence:” Operation Delta in Preparing the Canadian Corps for the Hundred Days [PDF]

open access: yes, 2018
Preparation and training for Operation Delta in May and June 1918 provided the Canadian Corps with vital experience for the types of operations conducted during the Hundred Days.
Stewart, William F.
core   +1 more source

On‐Demand Activation of Thin Alginate Shell Encapsulated Volatile Liquid for Untethered Pneumatic Soft Actuation

open access: yesAdvanced Engineering Materials, EarlyView.
Phase‐changing liquids enable untethered pneumatic actuation in soft robotics but suffer from volatility and storage challenges. This work reports a simple method to encapsulate Novec 7000 within micron‐thin alginate shells via in situ injection and ionic crosslinking.
Rayan A. M. Basodan   +3 more
wiley   +1 more source

Nonlinear analysis of water-soil-barrage floor interaction

open access: yesMATEC Web of Conferences, 2018
Fluid - Structure Interaction (FSI) and Soil-Structure Interaction (SSI) are mostly considered in the non-linear analysis of water-soil-barrage floor interaction. A three dimensional (3D) - section of a barrage is selected and modelled via ANSY 15.0. The
Al-Shukur Abdul-Hassan   +2 more
doaj   +1 more source

Agro-based Industry of Tharparkar and Barrage Area of Sindh: Solutions and Suggested Policy [PDF]

open access: yes
In this study solutions and suggested policy of agro-based industry of Tharparkar and barrage area of Sindh are given, and it is tenth chapter of the Ph.D submitted in 2002.
Herani, Gobind M.
core   +1 more source

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller   +8 more
wiley   +1 more source

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

open access: yesAdvanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May   +9 more
wiley   +1 more source

Drone localization using ultrasonic TDOA and RSS signal: Integration of the inverse method of a particle filter [PDF]

open access: yesFME Transactions, 2020
This paper will present an overview of indoor and outdoor drone localization methods. Outdoor scenarios almost always use a GPS with IMU. Indoor systems are using short-range sensors that are sensitive to the external conditions of the environment ...
Šoštarić Damir, Mester Gyula
doaj  

Pleistocene-Holocene P. nigra traces on tufa archives in the Northern Meseta of the Iberian Peninsula [PDF]

open access: yes, 2010
Molds preserved on travertines constitute exceptional species-informative material to reconstruct past vegetation. These are common on the High Ebro region.
Alonso, Ángela   +3 more
core   +1 more source

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