Results 81 to 90 of about 391,486 (306)

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

open access: yesAdvanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu   +3 more
wiley   +1 more source

Individuals Time Preference and Social Discounting: A Survey and a Meta-Analysis [PDF]

open access: yes
The choice of an appropriate social rate of discount is critical in the decision-making process on public investments. In this paper we review concisely the literature on social discounting and refer explicitly to a recently growing field of related ...
Marco Percoco, Peter Nijkamp
core  

Exploring users inter-temporal preferences for measuring transport social equity effects [PDF]

open access: yes, 2014
There exist different ways for defining a welfare function. Traditionally, welfare economic theory foundation is based on the Net Present Value (NPV) calculation where the time dependent preferences of considered agents are taken into account.
Di Ciommo, Floridea   +2 more
core  

Polymorph‐Specific Electronic Transduction in WO3 during Molecular Sensing

open access: yesAdvanced Materials, EarlyView.
Metal‐oxide polymorphs with similar surface chemistry can nevertheless exhibit distinct sensing properties. In γ‐ and ε‐WO3, analyte adsorption appears comparable; yet, only ε‐WO3 induces a pronounced lattice electronic perturbation that accommodates charge in sub‐conduction band minimum states.
Matteo D'Andria   +6 more
wiley   +1 more source

Highway Project Value of Money Assessment under PPP Mode and Its Application

open access: yesJournal of Advanced Transportation, 2018
The application of Public-Private Partnership (PPP) mode in transportation infrastructure construction has achieved more progress worldwide; now this mode has been adopted in highway projects of China from 2015.
Xiaowei Hu, Juan Han
doaj   +1 more source

Some considerations on investment projects valuation [PDF]

open access: yes
The classical criteria for investment projects valuation, although easy to apply, have the disadvantage of not reflecting the complexity of the social and economic phenomena implied by these projects.
Andreea SEMENESCU   +2 more
core  

Topology and Material Optimization in Ultra‐Soft Magneto‐Active Structures: Making Advantage of Residual Anisotropies

open access: yesAdvanced Materials, EarlyView.
Residual magnetization induces pronounced mechanical anisotropy in ultra‐soft magnetorheological elastomers, shaping deformation and actuation even without external magnetic fields. This study introduces a computational‐experimental framework integrating magneto‐mechanical coupling into topology optimization for designing soft magnetic actuators with ...
Carlos Perez‐Garcia   +3 more
wiley   +1 more source

Social Discounting Under Uncertainty: A cross-country comparison [PDF]

open access: yes
Recent research suggests that social cost-benefit analysis should be con- ducted with a declining discount rate. For instance, Newell and Pizer [23] show that the U.S.
Cameron Hepburn   +3 more
core  

Using the stated preference method for the calculation of social discount rate [PDF]

open access: yes, 2013
The aim of this paper is to build the stated preference method into the social discount rate methodology. The first part of the paper presents the results of a survey about stated time preferences through pair-choice decision situations for various ...
Alroth S.   +24 more
core   +1 more source

Rational Tuning of Hygroscopic Oscillation of Stacked Nanoflake Assemblies for Continuous Ambient Energy Harvesting

open access: yesAdvanced Materials, EarlyView.
Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang   +5 more
wiley   +1 more source

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