Results 91 to 100 of about 4,569,395 (350)

ANALISIS PORTOFOLIO SAHAM LQ45 MENGGUNAKAN FUNGSI UTILITAS KUADRATIK

E-Jurnal Matematika, 2013
Utility function can use to give risk preference for investors who want to get the benefits gained meets investment targets. Quadratic utility functions on optimal portfolio is strongly influenced by the expected return and standard deviation.
KADEK FRISCA AYU DEVI, KOMANG DHARMAWAN, NI MADE ASIH   +2 more
doaj   +1 more source

Application of an optimization model for constructing an index tracker portfolio and considering the uncertainty of model parameters by using of robust optimization approach [PDF]

تحقیقات مالی, 2015
index tracking is the process of developing a portfolio that reproduces the performance of an index. The tracker portfolio has relatively good diversity and low turnover and low transaction costs.
Saeid Fallahpour, Farid Tondnevis
doaj   +1 more source

Recent Progress on Photoelectrochemical Organic Upgrading: A Review from Direct and Indirect Charge Transfer Pathway

Advanced Energy Materials, EarlyView.
Photoelectrochemical (PEC) organic upgrading at the anode, coupled with hydrogen evolution at the cathode, presents a promising strategy for enhancing solar energy utilization while simultaneously generating value‐added chemicals. An overview of directional photoanodic conversion of organic substrates is presented, distinctively with an eye to the ...
Cheng Lin, Yoonjun Cho, Kan Zhang, Jong Hyeok Park   +3 more
wiley   +1 more source

Tackling the Reactivity of Propadiene: Palladium Metallaphotoredox Dual Catalyzed Multi‐Component Allylation and Dienylation of Styrenes

Angewandte Chemie, EarlyView.
We presented herein that propadiene can chemodivergently form either an allylic moiety or a dienylic moiety under Pd catalysis. Embedding this reactivity pattern into photocatalysis with DHP as the initial radical source and styrene derivatives as the initial acceptor leads to multi‐component allylation and dienylation.
Yi‐Fei Yang, Felix Bauer, Bernhard Breit   +2 more
wiley   +2 more sources

Optimal trend-following portfolios

Journal of Investment Strategies, 2023
This paper derives an optimal portfolio that is based on trend-following signal. Building on an earlier related article, it provides a unifying theoretical setting to introduce an autocorrelation model with the covariance matrix of trends and risk premia. We specify practically relevant models for the covariance matrix of trends.
openaire   +2 more sources

Electricity Portfolio Optimization for Large Consumers: Iberian Electricity Market Case Study

Energies, 2020
Electricity markets are nowadays flooded with uncertainties that rise from renewable energy applications, technological development, and fossil fuel prices fluctuation, among others.
Emanuel Canelas, Tânia Pinto-Varela, Bartosz Sawik   +2 more
semanticscholar   +1 more source

Divergent estimation error in portfolio optimization and in linear regression

, 2007
The problem of estimation error in portfolio optimization is discussed, in the limit where the portfolio size N and the sample size T go to infinity such that their ratio is fixed. The estimation error strongly depends on the ratio N/T and diverges for a
B. Scherer, E.J. Elton, H. Markovitz, I. Kondor, I. Kondor, I. Varga-Haszonits, I. Varga-Haszonits, R. Jagannathan, S. Ciliberti, S. Kirkpatrick, S. Pafka, S. Pafka, Z. Burda   +12 more
core   +2 more sources

Tandem Takeoff: Powering Tomorrow with Industrial‐Grade Perovskite/Silicon Solar Cells

Advanced Energy Materials, EarlyView.
Perovskite/silicon tandem solar cells have recently achieved certified power conversion efficiencies of 34.85%, far exceeding the Shockley‐Queisser limit for single‐junction silicon and standalone perovskite cells. This review highlights the latest advances in the design, integration, and optimization of perovskite top cells for monolithic tandem ...
Maria Vasilopoulou, Di Huang, Jue Gong, Faming Li, Hao Zhang, Yinqing Sun, Lin Mao, Ermioni Polydorou, Ioannis G. Aviziotis, Leonidas C. Palilis, Onurcan Kaya, Stephan Roche, Jordi Arbiol, Dimitrios Davazoglou, Emmanuel Kymakis, Lei Liu, Kuan Sun, Abd Rashid bin Mohd Yusoff, Mingzhen Liu, Mohammad Khaja Nazeeruddin   +19 more
wiley   +1 more source

Homoleptic Bismuth Alkynes: Isolable Reagents for Selective Alkynyl Radical Transfer

Angewandte Chemie, EarlyView.
The first series of fully characterized homoleptic alkynyl bismuth compounds Bi(C≡CR)3 is presented. Facile homolytic Bi–C bond cleavage grants access to alkynyl radicals, which have been employed in selective C–X bond formation (X = C, B, Se, Te). This complements existing strategies for alkynyl radical generation as it proceeds under mild and purely ...
Gargi Kundu, Felix Debbeler, Sascha Reith, Frerik Wurm, Alicia Casitas, Crispin Lichtenberg   +5 more
wiley   +2 more sources

Advancing Circularity in Battery Systems for Renewable Energy: Technologies, Barriers, and Future Directions

Advanced Energy and Sustainability Research, EarlyView.
This article examines strategies to enhance the sustainability of battery systems in renewable energy through circular economy principles. It discusses recycling techniques, modular battery design, second‐life utilization, and regulatory frameworks. Key barriers include inadequate infrastructure and regulatory gaps.
Williams Chibueze Munonye, George Oche Ajonye, Samuel Olusegun Ahonsi, Daniella Ifunanya Munonye, Ikechukwu Oscar Chigozie, Obey Akinmorin Akinloye   +5 more
wiley   +1 more source