Results 51 to 60 of about 2,775,506 (276)
A time series analysis of mineral revenue and economic growth in Ghana
Cogent Economics & FinanceMineral revenue is a vital source of revenue for the Government of Ghana, making it essential to assess its impact on economic growth. This study examines the long-term relationship between mineral revenue, government expenditure (GE), foreign direct ...
Frank Boateng +2 more
doaj +1 more source
International Journal of Technology, 2023 The methods currently used for detecting situational deformations in the time series of economic indicators have a number of major flaws, which encourages further research and development in this field aimed at improving the quality and stability of ...
Irina Eremina, Dmitriy Rodionov
doaj +1 more source
Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres
Advanced Engineering Materials, EarlyView.This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann +3 more
wiley +1 more source
Effect of Energy Utilization on Pakistan’s Economic Development: A Time Series Analysis
iRASD Journal of Energy & EnvironmentThe present research has been conducted to study the causal relation among GDP, electricity utilization, exports, real capital and labor force for Pakistan.
Wasif Ali Khan
doaj +1 more source
Causality between Public Expenditure and Economic Growth in Sri Lanka: A Time Series Analysis
Kelaniya Journal of Management, 2014 This paper examines the causality between public expenditure and economic growth in Sri Lanka using time series annual data over the period of 1977-2009.
M Kesavarajah
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Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories
Advanced Engineering Materials, EarlyView.Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter +5 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.The presented study focuses on the fracture behaviour of carbon‐bonded magnesia MgO–C refractories, where environmentally friendly fructose, collagen and lignin serve as temporary binding agents. The partial substitution of the source material with recycled MgO–C reduces the fracture resistance, which can be counteracted by the additional introduction ...
Marc Neumann +6 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat +7 more
wiley +1 more source
Economic determinants of environmental degradation: A time series analysis of Saudi Arabian economy
Environmental ChallengesEnvironmental degradation is posing several challenges worldwide and hence Saudi Arabia (KSA) is no exception. This paper therefore focuses on the economy of KSA to explore the main determinants of environmental degradation.
Muhammad Tahir +4 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Micro‐Raman spectroscopy is applied to characterize corrosion products in a recycled‐based MgO–316L steel composite anode after molten salt electrolysis. A depth‐dependent Fe–O/Fe–Al–O layer sequence of magnetite, hercynite, and an Al‐doped magnetite transition zone is identified.
Felix Drechsler +9 more
wiley +1 more source