Results 121 to 130 of about 722,335 (313)
Spatial Price Transmission Analysis in Agricultural Markets: Does the Data Frequency Improve our Estimation? [PDF]
Unavailability of high frequency, weekly or daily data compels most studies of price transmission in developing countries to use low frequency, monthly data for their analyses.
Amikuzuno, Joseph
core +1 more source
Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures
Advanced Engineering Materials, EarlyView.This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley +1 more source
MathematicsProducer share indicators summarize how value is distributed along agrifood supply chains, yet their temporal dynamics remain difficult to compare across products and periods.
Elena Sánchez-Arnau +3 more
doaj +1 more source
Wheat market integration between Hungary and Germany [PDF]
One of the most important targets of the Common Agricultural Policy (CAP) is to facilitate the spatial integration of agricultural markets within the individual member states as well as within the Community.
Bakucs, Lajos Zoltan +3 more
core +1 more source
Advanced Engineering Materials, EarlyView.This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal +2 more
wiley +1 more source
How do domestic policies affect the integration of Ethiopian fertiliser markets with world markets?
Journal of Agriculture and Rural Development in the Tropics and Subtropics, 2015 Frequent shifts in policy on fertiliser markets have occurred in Ethiopia with the aim of facilitating both physical and economic access of farmers to fertiliser. The last shift was the introduction of a monopoly on each stage of the supply chain in 2008.
Johanes U. I. Agbahey +3 more
doaj
PRICE RELATIONSHIPS IN THE U.S. FIBER MARKETS: ITS IMPLICATIONS FOR COTTON INDUSTRY [PDF]
The paper examined the price relationship between cotton and polyester. The results provide strong evidence of long term price transmissions and granger causality between cotton and polyester price as well as the asymmetry transmissions for cotton on ...
Fadiga, Mohamadou L. +2 more
core +1 more source
Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere
Advanced Engineering Materials, EarlyView.This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland +5 more
wiley +1 more source
‘Definition of a Balancing Point for Electricity Transmission Contracts’ [PDF]
Electricity transmission contracts allocate scarce resources, allow hedging against locational price differences and provide information to guide investment. Liquidity is increased if all transmission contracts are defined relative to one balancing point,
Neuhoff, K., Olmos, L.
core
Advanced Engineering Materials, EarlyView.New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold +2 more
wiley +1 more source