Results 121 to 130 of about 4,968,550 (330)

Geometric Accuracy Evaluation of High-Resolution Satellite Images Based on Xianning Test Field

open access: yesSensors, 2018
The evaluation of geometric accuracy of high-resolution satellite images (HRSIs) has been increasingly recognized in recent years. The traditional approach is to verify each satellite individually.
Xiongwei Zheng   +4 more
doaj   +1 more source

Slip Localization Intensification Mediated by Grain Boundary Sliding in a Polycrystalline Nickel‐Based Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
The temperature dependence of fatigue behavior in nickel‐based superalloys is investigated through high‐resolution measurements of plastic localization. While increasing temperature reduces localization and enhances fatigue performance in René 88DT, Inconel 718 exhibits a sharp degradation at intermediate temperature due to intensified slip ...
M. Calvat   +5 more
wiley   +1 more source

Investigations on the Coregistration of Sentinel-1 TOPS with the Conventional Cross-Correlation Technique

open access: yesRemote Sensing, 2018
In Sentinel-1 TOPS mode, the antenna sweeps in the azimuth direction for the purpose of illuminating the targets with the entire azimuth antenna pattern (AAP).
Yuxiao Qin, Daniele Perissin, Jing Bai
doaj   +1 more source

Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales

open access: yesAdvanced Engineering Materials, EarlyView.
Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik   +7 more
wiley   +1 more source

Simulation of Adaptive Sampling in Profile Measurement for Structured Surfaces

open access: yes, 2010
Adaptive sampling is a novel sampling design that can redirect sampling effort during a survey in response to the observed values. Its application on surface texture measurement is new, such as working with stylus profilometers.
Wang, Jian, Blunt, Liam, Jiang, Xiang
core  

REVERSE ENGINEERING OF THE MITKOVIC TYPE INTERNAL FIXATOR FOR LATERAL TIBIAL PLATEAU

open access: yesFacta Universitatis. Series: Mechanical Engineering, 2015
In orthopaedic surgery it is very important to use proper fixation techniques in the treatment of various medical conditions, i.e. bone fractures or other traumas.
Nikola Vitković   +5 more
doaj  

A COMBINED APPROACH USING TEXTURAL AND GEOMETRICAL FEATURES FOR FACE RECOGNITION [PDF]

open access: yesICTACT Journal on Image and Video Processing, 2013
Texture feature plays a predominant role in recognizing face images. However different persons can have similar texture features that may degrade the system performance.
A. Suruliandi, R. Reena Rose, K. Meena
doaj  

Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

open access: yesAdvanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad   +6 more
wiley   +1 more source

Optimizing the geometrical accuracy of 2D Finite Element curvilinear meshes

open access: yes, 2014
We present a procedure for optimizing curved two-dimensional finite element meshes, which aims at minimizing the distance between the mesh and the underlying CAD model.
6th International Conference on Advanced COmputational Methods in ENgineering (ACOMEN 2014)   +5 more
core  

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova   +2 more
wiley   +1 more source

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