Results 41 to 50 of about 15,920 (255)

Solving Quadratic Programming Problem Using Van De Panne Method Under Fuzzy Environment [PDF]

المجلة العراقية للعلوم الاحصائية, 2010
In this paper, the solution of Symmetric Fuzzy Quadratic programming is considered by using fuzzy values with special Phases of Van De method , For the founded model ,we use the Kuhn Tucker conditions for solving the Quadratic programming by implementing
doaj   +1 more source

Dual possibilistic regression models of support vector machines and application in power load forecasting

International Journal of Distributed Sensor Networks, 2020
Power load forecasting is an important guarantee of safe, stable, and economic operation of power systems. It is appropriate to use interval data to represent fuzzy information in power load forecasting.
Xianfei Yang, Xiang Yu, Hui Lu
doaj   +1 more source

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

On the complexity of quadratic programming with two quadratic constraints

Mathematical Programming, 2016
This paper deals with problems of the form \[ \begin{aligned} \min & \frac{1}{2}x^{T}Qx+q^{T}x \\ \text{s.t.} & \frac{1}{2}x^{T}x\leq \frac{1}{2} \\ & \frac{1}{2}x^{T}Ax+a^{T}x\geq u, \end{aligned} \tag{1} \] where \(A\) is a positive definite \(n\times n\) symmetric matrix.
CONSOLINI, Luca, LOCATELLI, Marco
openaire   +4 more sources

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

Molecular Dynamics Studies of Shape Memory Polymers: From Bead–Spring Models to Atomistic Simulations

Advanced Engineering Materials, EarlyView.
Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley   +1 more source

Branch-and-Reduction Algorithm for Indefinite Quadratic Programming Problem

Complexity, 2021
This paper presents a rectangular branch-and-reduction algorithm for globally solving indefinite quadratic programming problem (IQPP), which has a wide application in engineering design and optimization.
Yongjian Qiu, Yuming Zhu, Jingben Yin
doaj   +1 more source

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

Advanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt, Yong Chen, Georg Hasemann, Benjamin Wahlmann, Carolin Körner, Manja Krüger   +5 more
wiley   +1 more source

Solving of the Quadratic Fractional Programming Problems by a Modified Symmetric Fuzzy Approach

Ibn Al-Haitham Journal for Pure and Applied Sciences, 2022
The aims of the paper are to present a modified symmetric fuzzy approach to find the best workable compromise solution for quadratic fractional programming problems (QFPP) with fuzzy crisp in both the objective functions and the constraints.
Maher A. Nawkhass, Nejmaddin A. Sulaiman   +1 more
doaj   +1 more source

Room‐Temperature Synthesis of Strongly Confined Lead Halide Perovskite Quantum Dots

Advanced Functional Materials, EarlyView.
CsPbX3${\rm CsPbX}_3$ lead halide perovskite quantum dots (QDs) are synthesized in a room‐temperature, five‐minute synthesis, yielding size‐controlled QDs with bright, tunable emission governed by reaction conditions and halide composition. A strongly binding ligand, OD‐PEA, ensures months‐long stability under ambient conditions and facilitates their ...
Anna Abfalterer, Yuzhen J. Zhou, Roshini Jayabalan, Julian Holzinger, Lukas M. Rescher, Rik Hooijer, Aladin Ullrich, Nina A. Henke, Immanuel Plangger, Erkan Aydin, Bert Nickel, Anne K. Schütz, Wolfgang Brütting, Alexander S. Urban   +13 more
wiley   +1 more source