Results 71 to 80 of about 2,072,106 (347)

Dynamic model of the commodity prices with variable delay

Lietuvos Matematikos Rinkinys, 2013
In this article the authors analyses of the commodity prices growth model with delay depends on the search solution, i.e. the commodity prices. The stable periodic solution of the model is constructed with the help of the Bifurcation theory.
Raimondas Barzdžiukas, Osvaldas Švitra, Ramunė Vilkytė   +2 more
doaj   +1 more source

Modification Strategies of Carbon‐Based Electrodes From Structural Regulation to Multifunctional Integration

Advanced Science, EarlyView.
Tracing the evolution from structural regulation to multifunctional integration, this paper systematically analyzes modification strategies for carbon‐based electrodes. It evaluates how element doping, surface functionalization, and composite material design affect the electrode performance, and offers perspectives on future applications and challenges
Yunlei Wang, Shitao Dou, Yifan Wu, Mingguang Wang, Taibin Wu   +4 more
wiley   +1 more source

Volatility and Co‑movement: an Analysis of Food Commodity Prices in Nigeria

Agricultura Tropica et Subtropica, 2017
This study explains volatility as a measure and interaction of the possible movement in a particular economic variable. Prices change rapidly in adjustment to market circumstances.
Ogunmola Omotoso Oluseye, Obayelu Abiodun Elijah, Akinbode Sakiru Oladele   +2 more
doaj   +1 more source

Is the interest rate more important than inventories? The case of agricultural commodities in thecontext of the financialization process

Lecturas de Economía, 2016
In the context of the “Asian economic miracle”, changes in commodity prices between 2004 and 2014 may have been dominated by the effects of the entry of portfolio investors as major participants in commodity index positions and new financial products ...
Esteban Otto Thomasz, Juan Miguel Massot, Gonzalo Rondinone   +2 more
doaj   +1 more source

Beyond Traditional RAFT Polymerization: Emerging Strategies and Future Perspectives; A Third Update

Advanced Science, EarlyView.
This review explores recent advances in the past five years for non‐traditional RAFT polymerization, focusing on new activation strategies, sustainable depolymerization, and integration with automated and AI‐driven synthesis. Together, these innovations advance polymer chemistry and reveal how the pieces of the non‐traditional RAFT puzzle are steadily ...
Vianna F. Jafari, James L. Grace, Jiajia Li, Joji Tanaka, Glen R. Jones, Athina Anastasaki, Wei You, Jian Zhu, Masami Kamigaito, Cyrille Boyer, Greg G. Qiao   +10 more
wiley   +1 more source

Dependence of Latin America external sector on commodity prices

Económica, 2019
We seek to analyze the relationship between some macroeconomics variables and commodity prices in Latin America. The main hypothesis is that the economic performance in the area is tied to the pattern followed by the commodity prices. Moreover we expect
Andres Fioriti, Fernando Andrés Delbianco   +1 more
doaj   +1 more source

THE ROLE OF BIOFUELS IN FOOD COMMODITY PRICES VOLATILITY AND LAND USE

, 2017
The goal of this study is to investigate the cause of a growing food price volatility. We analyse whether food price volatility is mainly induced by transfer of the oil price shock or if it is the consequence of a rising and competitive biofuel ...
J. Oláh, P. Lengyel, P. Balogh, Mónika Harangi-Rákos, J. Popp   +4 more
semanticscholar   +1 more source

Bridging Green Chemistry and Circular Economy: A Pathway to Sustainable Polyester Plastics Through Feedstock, Synthesis, and Waste Upcycling

Advanced Science, EarlyView.
This review summarizes green and low‐carbon strategies throughout the entire life cycle of polyester plastics, including sustainable monomer synthesis, optimization polymerization, efficient recycling, and advanced upcycling technologies. The synergistic implementation of these strategies is expected to significantly promote the development of a ...
Jinzhou Li, Junliang Chen, Yingbing Zhang, Li Wang, Pin Gao, Jianping Yang   +5 more
wiley   +1 more source

Bio‐Inspired Cascade Photocatalysis on Fe Single‐Atom Carbon Nitride Upcycles Plastic Wastes for Effective Acetic Acid Production

Advanced Energy Materials, EarlyView.
This work demonstrates a novel cascade photocatalysis concept using Fe single‐atom catalysts (Fe@C3N4 SAC) to directly upcycle plastics (PET, PP, PE, PVC) into valuable acetic acid at ambient conditions. Inspired by microbial degradation, the bifunctional cascade photocatalyst combines Fenton‐like oxidation and CO2 photoreduction, as validated by ...
Wei Wei, Cheng Du, Jiawei Ge, Xiang Wang, Zuolong Chen, Meng Zhang, Tao Guo, Lei Wang, Maoyu Wang, Yuzi Liu, Hua Zhou, Chengjun Sun, Ning Chen, Weifeng Chen, Brant Billinghurst, Mohsen Shakouri, Peter Sprenger, Fatemeh Fani Sani, Yulian Quan, Brian Kendall, Roy Brouwer, Yimin A. Wu   +21 more
wiley   +1 more source

Do VaR exceptions have seasonality? An empirical study on Indian commodity spot prices

IIMB Management Review, 2018
This paper compares three models namely RiskMetrics's EWMA, ARMA-GARCH and APARCH with normal and Student's t-distribution. These models have been applied to spot prices of seven commodities: aluminium, copper, gold, soyabean, guar seed, chana and ...
Apoorv Gupta, Prabina Rajib
doaj   +1 more source