Results 71 to 80 of about 3,121,078 (347)
Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities
Advanced Materials, EarlyView.This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen +7 more
wiley +1 more source
Multi objective project portfolio selection [PDF]
Journal of Project Management, 2019 The Project Portfolio Selection is a complex process that involves many factors and considerations since the project is proposed until the project portfolio is finally selected.
Kamal Baqeri +2 more
doaj +1 more source
Factor Models for Portfolio Selection in Large Dimensions: The Good, the Better and the Ugly
Journal of Financial Econometrics, 2019 This paper injects factor structure into the estimation of time-varying, large-dimensional covariance matrices of stock returns. Existing factor models struggle to model the covariance matrix of residuals in the presence of time-varying conditional ...
G. D. Nard, Olivier Ledoit, Michael Wolf
semanticscholar +1 more source
Distributionally Robust Mean-Variance Portfolio Selection with Wasserstein Distances [PDF]
Management Sciences, 2018 We revisit Markowitz’s mean-variance portfolio selection model by considering a distributionally robust version, in which the region of distributional uncertainty is around the empirical measure and the discrepancy between probability measures is ...
J. Blanchet, Lin Chen, X. Zhou
semanticscholar +1 more source
Recent Advances in Ferrite‐Based Materials for Biomedical Applications: A Comprehensive Review
Advanced Materials, EarlyView.Ferrite nanoplatforms are presented as tunable biomedical materials in which synthesis control, cation engineering, defect/morphology regulation, and surface functionalization govern structure–property–bioactivity relationships. These design strategies enable multifunctional applications including MRI contrast, magnetic hyperthermia, targeted drug ...
Pramod D. Mhase +6 more
wiley +1 more source
An Integrated Multi-Objective Model for Project Portfolio Selection and Risk Response Actions Planning [PDF]
چشمانداز مدیریت صنعتی, 2019 Project portfolio selection and risk response selection are two issues that have been considered disjointedly by the researchers. In this study, an integrated mathematical model is presented for the above-mentioned problems.
Ghasem Mokhtari, Younes Hasanzadeh
doaj
Advanced Materials, EarlyView.Extracellular vesicles (EVs) are cell‐derived nanoparticles that mediate intercellular communication through their dynamic biointerfaces. Owing to their intrinsic biological functions, EVs have emerged as promising platforms for biomedical applications.
Leila Pourtalebi Jahromi +3 more
wiley +1 more source
Enhancing Portfolio Optimization: A Two-Stage Approach with Deep Learning and Portfolio Optimization
MathematicsThe portfolio selection problem has been a central focus in financial research. A complete portfolio selection process includes two stages: stock pre-selection and portfolio optimization.
Shiguo Huang +4 more
doaj +1 more source
Fabrication of Fibers With Complex Features Using Thermal Drawing of 3D‐Printed Preforms
Advanced Materials Technologies, EarlyView.3D printing enables rapid fabrication of macroscale polymer preforms with complex geometries. Thermal drawing then scales these structures into long fibers while preserving micron‐scale cross‐sectional features. This workflow provides a fast, low‐cost route to functional fibers with tailored geometries and material combinations for catheter, robotic ...
Ali Anil Demircali +4 more
wiley +1 more source
Knowledge-Based Systems, 2019 The problem that firms usually face with is how to allocate limited funds to available projects. In this study, we develop a group decision-making approach to help managers to select optimal portfolio in which the group contains several experts who are ...
Xiaoyang Zhou +5 more
semanticscholar +1 more source