Results 51 to 60 of about 343,410 (309)

Portfolio Optimization with Systemic Risk Approach [PDF]

Iranian Journal of Finance
Portfolio optimization has always been the main concern of investors. What differentiates different optimization models from each other is the risk measure.
Mohammad Azad, Mirfeiz Fallah Shams, Ali Rahmani, Teymour Mohammadi   +3 more
doaj   +1 more source

A new method based on finding the weak and strong defining supporting hyperplanes to recognize the anchor points

Measurement + Control, 2023
One of the main important issues in Data Envelopment Analysis (DEA) is to recognize the set of anchor points which is the subset of the extreme efficient points of the production possibility set (PPS).
Mehdi Khazaeyan, Sevan Sohraiee, Amin Mostafaee, Mohsen Rostamy-Malkhalifeh   +3 more
doaj   +1 more source

Approaches for Efficiently Detecting Frontier Cells in Robotics Exploration

Frontiers in Robotics and AI, 2021
Many robot exploration algorithms that are used to explore office, home, or outdoor environments, rely on the concept of frontier cells. Frontier cells define the border between known and unknown space.
Phillip Quin, Dac Dang Khoa Nguyen, Thanh Long Vu, Alen Alempijevic, Gavin Paul   +4 more
doaj   +1 more source

Nonparametric instrumental variables estimation for efficiency frontier [PDF]

Journal of Econometrics, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Cazals, Catherine, Fève, Frédérique, Florens, Jean-Pierre, Simar, Léopold   +3 more
openaire   +5 more sources

Elinvar Materials: Recent Progress and Challenges

Advanced Engineering Materials, EarlyView.
Elinvar materials, exhibiting temperature‐invariant elastic modulus, are critical for precision instruments and emerging technologies. This article reviews recent progress in the field, with a focus on the anomalous thermoelastic behavior observed in key material systems.
Wenjie Li, Yang Ren
wiley   +1 more source

Portfolio Selection with Housing Market Boom and Bust [PDF]

پژوهشهای اقتصادی, 2011
For the first time, this paper analyzes the portfolio selection theory in the presence of housing market in Iran. One of the important theories about the housing price is household portfolio theory.
Ali Akbar Qolizadeh, Masoud Tahuri Matin
doaj  

Spatial and Temporal Differences in the Health Expenditure Efficiency of China: Reflections Based on the Background of the COVID-19 Pandemic

Frontiers in Public Health, 2022
The outbreak of the COVID-19 pandemic has brought several challenges to China's national health services, causing great risks and uncertainties to people's lives.
Yi Shi, Yufeng Xie, Huangxin Chen, Wenjie Zou   +3 more
doaj   +1 more source

Piezoresistive Monitoring of Carbon Nanomaterial‐Reinforced Epoxy Composites Under Cyclic and Fatigue Loading: A Review

Advanced Engineering Materials, EarlyView.
Carbon nanomaterial‐reinforced epoxy composites exhibit pronounced piezoresistive behavior, enabling intrinsic damage sensing under cyclic and fatigue loading. This review critically compares carbon nanotube and graphene systems, correlating filler content, percolation threshold, and gauge factor with sensing stability and damage evolution.
J. M. Parente, J. Nunes‐Pereira, A. P. Silva, P. N. B. Reis   +3 more
wiley   +1 more source

Analyzing Electronic Excitations and Exciton Binding Energies in Y6 Films

Advanced Functional Materials, EarlyView.
The Y6 molecule is used for increasing the efficiency of organic solar cells. The exciton binding energy is calculated for ensembles of Y6 molecules that are representative of the typically used films. The calculations show that the excitons typically spread out over many molecules.
Sahar Javaid Akram, Sophie Meißner, Stephan Kümmel   +2 more
wiley   +1 more source

Efficient Retirement Portfolios: Using Life Insurance to Meet Income and Bequest Goals in Retirement

Risks, 2019
Life Insurance Retirement Plans (LIRPs) offer tax-deferred cash value accumulation, tax-free withdrawals (if properly structured), and a tax-free death benefit to beneficiaries.
Fangyuan Dong, Nick Halen, Kristen Moore, Qinglai Zeng   +3 more
doaj   +1 more source