Results 101 to 110 of about 8,892,749 (345)

Discrete gradient method : Derivative-free method for nonsmooth optimization [PDF]

, 2008
A new derivative-free method is developed for solving unconstrained nonsmooth optimization problems. This method is based on the notion of a discrete gradient.
Bagirov, A. M., Sezer, M., Bagirov, Adil, Karasozen, Bulent, Sezer, Monsalve   +4 more
core   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

Advanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi, Hadi Moutablaleh, Ignatius A. Setiawan, Mehrshad Mehrpouya   +3 more
wiley   +1 more source

Discrete Optimization: A Quantum Revolution?

European Journal of Operational Research
We develop several quantum procedures and investigate their potential to solve discrete optimization problems. First, we introduce a binary search procedure and illustrate how it can be used to effectively solve the binary knapsack problem. Next, we introduce two other procedures: a hybrid branch-and-bound procedure that allows to exploit the structure
Creemers, Stefan, Pérez, Luis Fernando
openaire   +2 more sources

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +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

基于蚂蚁算法的谐波齿轮传动模糊优化设计

Jixie chuandong, 2006
The optimization design issues of harmonic gear `transmission were studied,and its fuzzy optimization design model with discrete variables was set up.The basic ant colony optimization algorithm was improved by introducing rebirth of ant colony.In order ...
郭惠昕
doaj  

Summary of discrete optimization cases.

, 2019
Summary of discrete optimization cases.
Cameron Meaney (6894080), Mohammad Kohandel (192746), Marek Stastna (314798), Mehran Kardar (21488)   +3 more
core   +1 more source

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

Advanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn, Sarah Kaden, Andrea Barz, Daniel Störzner, Jens Bliedtner, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

[Multiresolution discrete optimization registration method of ultrasound and magnetic resonance images based on key points]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2023
Tan Z, Guo S.
europepmc   +1 more source