Results 41 to 50 of about 1,569,333 (364)

A Methodological Review of Piezoelectric Based Acoustic Wave Generation and Detection Techniques for Structural Health Monitoring

open access: yesInternational Journal of Aerospace Engineering, 2013
Piezoelectric transducers have a long history of applications in nondestructive evaluation of material and structure integrity owing to their ability of transforming mechanical energy to electrical energy and vice versa.
Zhigang Sun   +3 more
doaj   +1 more source

Optimization of venture portfolio based on LSTM and dynamic programming

open access: yesAIMS Mathematics, 2023
A rational investor always pursues a portfolio with the greatest possible return and the least possible risk. Therefore, a core issue of investment decision analysis is how to make an optimal investment choice in the market with fuzzy information and ...
Jiuchao Ban   +3 more
doaj   +1 more source

ANALISIS MODEL INDEKS TUNGGAL UNTUK MEMBENTUK PORTOFOLIO OPTIMAL DALAM PENGAMBILAN KEPUTUSAN INVESTASI SAHAM (Studi Pada Saham Indeks LQ 45 di Bursa Efek Jakarta) [PDF]

open access: yes, 2007
This study is a case study, titled "Application of Single Index Method for Forming the Optimal Portfolio Decision Investment Shares (Study on the LQ 45 Shares Listed on Stock Exchange Jakarta).
SUMINAR, RINA
core  

s‐Orbital Mediated Metavalent Bonding Enables State‐Of‐The‐Art n‐Type AgBiSe2 Thermoelectrics

open access: yesAdvanced Functional Materials, EarlyView.
Metavalent bonding (MVB) underpins the exceptional property portfolio of chalcogenides. Typical MVB solids are mainly found in p‐bonded systems. This work reveals that MVB can also be formed with s‐p orbital interactions upon forming a single‐electron σ‐bond, as exemplified in AgBiSe2.
Binrong Huang   +13 more
wiley   +1 more source

Sebum Components Dampen the Efficacy of Skin Disinfectants against Cutibacterium acnes Biofilms

open access: yesMicroorganisms
At Canadian Blood Services, despite the use of 2% chlorhexidine and 70% isopropyl alcohol (standard disinfectant, SD) prior to venipuncture, Cutibacterium acnes evades eradication and is a major contaminant of platelet concentrates (PCs). Since C.
Dilini Kumaran, Sandra Ramirez-Arcos
doaj   +1 more source

Portfolio Management with Cryptocurrencies: The Role of Estimation Risk

open access: yesEconomics Letters, 2019
This paper contributes to the literature on cryptocurrencies, portfolio management and estimation risk by comparing the performance of naive diversification, Markowitz diversification and the advanced Black–Litterman model with VBCs that controls for ...
Emmanouil Platanakis, Andrew Urquhart
semanticscholar   +1 more source

Stepwise On‐Surface Synthesis and Transformations of Two‐Dimensional Covalent Organic Frameworks by Controlled Thermal Stimuli

open access: yesAdvanced Materials, EarlyView.
The seminal transformation of a 2D‐COF (SURFCOF‐IMDEA1) into a 2D porous COF (SURFCOF‐IMDEA2) on Au(111) by a sequential C‐C coupling and ladderization triggered by thermal annealing steps at increasing temperatures is reported. Abstract The development of covalent organic frameworks (COFs) is currently a primary objective in materials science, taking ...
Ana Barragán   +11 more
wiley   +1 more source

The Impact of an Immersive Block Model on International Postgraduate Student Success and Satisfaction: An Australian Case Study

open access: yesEducation Sciences
International postgraduate students enrich higher education institutions and host societies, contributing economically, socially, and culturally. However, much less is known about how to improve their academic outcomes compared with their undergraduate ...
Elizabeth Goode   +3 more
doaj   +1 more source

Portfolio-aspects in real options management [PDF]

open access: yes, 2001
Real options theory applies techniques known from finance theory to the valuation of capital investments. The present paper investigates further into this analogy, considering the case of a portfolio of real options.
Brosch, Rainer
core  

Portfolio Optimization [PDF]

open access: yesASTIN Bulletin, 2000
AbstractBased on the profit and loss account of an insurance company we derive a probabilistic model for the financial result of the company, thereby both assets and liabilities are marked to market. We thus focus on the economic value of the company.We first analyse the underwriting risk of the company. The maximization of the risk return ratio of the
openaire   +2 more sources

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