Results 101 to 110 of about 23,255 (297)

Scalable Wheat Bran‐Algae Composites for Edible Electronics with Spray‐Coated Food‐Grade Conductive Inks

open access: yesAdvanced Electronic Materials, EarlyView.
A fully edible wheat bran–algae substrate is fabricated through scalable mould‐compression and spray‐coating, enabling robust, food‐grade platforms for sustainable electronics. A chitosan barrier improves water resistance and ink compatibility, while activated‐carbon conductive films form uniform electrodes with Ohmic behaviour.
Jaz Johari   +7 more
wiley   +1 more source

Time-varying Predictability in Crude Oil Markets: The Case of GCC Countries [PDF]

open access: yes
This paper uses a time-varying parameter model with generalized autoregressive conditional heteros-cedasticity effects to examine the dynamic behavior of crude-oil prices for the period 1997-2008.
Thanh Huong Dinh   +2 more
core  

From Materials to Systems: Challenges and Solutions for Fast‐Charge/Discharge Na‐Ion Batteries

open access: yesAdvanced Energy Materials, EarlyView.
This review systematically analyzes the key characteristics limiting the fast‐charge/discharge capability of Na‐ion batteries (SIBs) from a multi‐scale perspective encompassing electrode materials, the electrode‐electrolyte interface, and the system. Furthermore, it presents practical solution strategies for the fundamental issues arising at each scale,
Bonyoung Ku   +5 more
wiley   +1 more source

Speculation and Volatility Spillover in the Crude Oil and Agricultural Commodity Markets: A Bayesian Analysis

open access: yes
This paper assesses the roles of various factors influencing the volatility of crude oil prices and the possible linkage between this volatility and agricultural commodity markets.
Du, Xiaodong   +2 more
core  

Hedging crude oil imports in developing countries [PDF]

open access: yes
The objective of this paper is to explore the application of risk management techniques to a typical developing country state-owned oil company (SOC) involved in importing and refining crude oil and to make estimates of the potential gains from using ...
Varangis, Panos, Claessens, Stijn
core  

Redox‐Mediated Aluminum–Air Fuel Cells With Suppressed Hydrogen Evolution for Durable Power Generation

open access: yesAdvanced Energy Materials, EarlyView.
The redox‐mediated aluminum–air fuel cell (RM‐AAFC) integrates a soluble redox mediator, 7,8‐dihydroxy‐2‐phenazine sulfonic acid (DHPS), to facilitate the oxidation of aluminum and inhibit hydrogen evolution reaction (HER) through competitive reactions between DHPS reduction and HER on the Al surface.
Yuxi Song   +10 more
wiley   +1 more source

GOVERNMENT PRICE POLICIES AND THE AVAILABILITY OF CRUDE OIL

open access: yes
This study examines the effects of price incentives on the availability of petroleum. Expected sustained higher crude oil prices to domestic producers constitute an incentive to increase both exploratory drilling and secondary and tertiary recovery of ...
Pagoulatos, Emilio   +2 more
core  

Sustainable Productivity Growth in Agriculture: The Role of Shifts in R&D Investments and Technology

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT The objective of the paper is to evaluate the long‐term prospects of sustainable productivity growth linked to plausible assumptions on public agricultural R&D investments as the key productivity driver. Second, it investigates the role of changing R&D focus from yield maximization to input saving technologies (fertilizers and pesticides). The
Zuzana Smeets Křístková   +4 more
wiley   +1 more source

Understanding Crude Oil Prices

open access: yes, 2008
This paper examines the factors responsible for changes in crude oil prices. The paper reviews the statistical behavior of oil prices, relates these to the predictions of theory, and looks in detail at key features of petroleum demand and supply. Topics discussed include the role of commodity speculation, OPEC, and resource depletion.
openaire   +1 more source

Starch‐Molded Snacks Enriched With Nance (Byrsonima crassifolia L.) Fruit Flour Functional Potential

open access: yesAgriFood: Journal of Agricultural Products for Food, EarlyView.
Nance flour enriches starch‐molded snacks with antioxidants and fiber. These innovative snacks offer high phenolic bioaccessibility and improved sensory appeal, valorizing an underutilized fruit for sustainable food development. ABSTRACT This study aimed to develop starch‐molded snacks enriched with nance (Byrsonima crassifolia L.) flour, a native ...
Mariana Carolina Fregoso‐Ultreras   +5 more
wiley   +1 more source

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