Results 51 to 60 of about 121,109 (265)

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Sharp bounds for Sándor-Yang means in terms of quadratic mean [PDF]

Journal of Mathematical Inequalities, 2018
Summary: In the article, we find the best possible parameters \(\alpha,\beta,\lambda,\mu\in(1 /2,1)\) such that the double inequalities \[ Q[\alpha a+(1-\alpha) b,\alpha b+ (1-\alpha)a] < R_{QA}(a,b)< Q[\beta a+ (1-\beta)b,\beta b+ (1-\beta)a], \] \[ Q[\lambda a+ (1-\lambda) b,\lambda b+(1-\lambda)a] < R_{AQ}(a,b)< Q[\mu a+ (1-\mu)b,\mu b+(1-\mu)a ...
Xu, Hui-Zuo, Qian, Wei-Mao
openaire   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

Advanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares, Nadège Bouchonneau, Christian Jochum, Donald Radford   +3 more
wiley   +1 more source

Optimal Bounds for Neuman-Sándor Mean in Terms of the Convex Combinations of Harmonic, Geometric, Quadratic, and Contraharmonic Means

Abstract and Applied Analysis, 2012
We present the best possible lower and upper bounds for the Neuman-Sándor mean in terms of the convex combinations of either the harmonic and quadratic means or the geometric and quadratic means or the harmonic and contraharmonic means.
Tie-Hong Zhao, Yu-Ming Chu, Bao-Yu Liu
doaj   +1 more source

An Application of Fuzzy AHP Using Quadratic Mean Method: Case Study of ENC Preparation Process for Intended Voyages

Journal of Eta Maritime Science, 2023
Effective management of the electronic nautical charts (ENCs) preparation process using the electronic chart display and information system (ECDIS) is crucial to ensure the safety of ships. Delays or failures in this process can prevent the creation of a
Ahmet Lutfi Tunçel, Özcan Arslan, Emre Akyüz   +2 more
doaj   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

Advanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies, Daniel E. Driemeyer, Aaron P. Stebner   +2 more
wiley   +1 more source

Density management diagram for teak plantations in Tabasco, Mexico

iForest - Biogeosciences and Forestry, 2017
Density management diagrams are valuable tools for managing specific forest species. The aim of this study was to obtain a density management diagram for teak (Tectona grandis L.) plantations in the State of Tabasco in Mexico.
Minoche D, Risio-Allione L, Herrero De Aza C, Martínez-Zurimendi P   +3 more
doaj   +1 more source

IRRIGATED YIELD ESTIMATION OF Populus Nigra STANDS IN NINEVEH PLANTATION [PDF]

Mesopotamia Journal of Agriculture, 2008
Consequence of the use of Non-Linear function in this study, which is believed to be in harmonic with the characteristics of tree stand, twelve trees were selected which represents different location over an area planted with Populus nigra trees ,and ...
Muzahim .S. younis
doaj   +1 more source

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

Advanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič, G. Lukin, H. Torkashvand, A. Kerschbaum, M. Müller, S. Besendörfer, J. Heitmann, J. Friedrich   +7 more
wiley   +1 more source