Automotive engines are made from different materials like steel, aluminium, copper, and brass. These materials usually come in contact with the fuel. This study provides corrosion rates of automotive materials copper, aluminium, and stainless steel 316l when coming in contact with chicken fat...

Cu(II)-EDTA is a highly stable typical metal-organic complex in a wide pH range (3.0-12.0) and difficult to deeply purify Cu(II) by conventional precipitation methods. In this study, Fe(III) replacement/diethyldithiocarbamate (DDTC) precipitation combined process was proposed as a promising...

Vanadium sulfides are appeared and investigated for the application of sodium-ion batteries (SIBs) due to their adjustable structure and high theoretical capacity. Nevertheless, their inferior sodiation/desodiation kinetics during cycling and convoluted Na + storage mechanism severely restricts...

This paper demonstrates a selective laser melting method to produce a metal matrix composite capable of enhancing the thermal conductivity of 316L stainless steel using a jettable Cu ink. A novel canister for controlling the atmosphere surrounding a powder bed during selective laser melting, was...

Negative permittivity is a required physical property of metamaterials which has been widely used in some emerging and unconventional applications, such as cloaking, perfect lens and perfect wave absorption. In addition to periodic meta-structured units, a composite with conductive networks,...

Copper sulfides (Cu x S) have been considered as candidates for sodium ion battery (SIB) anodes because they are environmentally friendly and have large theoretical capacity. Whereas, the cycle stability and capacity of Cu x S are still challenge for their practical applications. Here,...

In this work, we highlights 5G antenna (~ 28GHz) using Al 2 O 3 -doped CaO-MgO-SiO 2 glass ceramics with reducing-resistant behavior co-fired with copper electrode. The diffusion behavior between copper electrode and low-temperature-co-fired-ceramics (LTCC) were also studied. Amphoteric Al 3+...

This senior law thesis examines the place of copper extraction in the Chilean economy and political system and the role that legal regulation played since 1850 up to the late 1960s. Copper has been the principal product of the economy and main source of foreign exchange and government revenue....

The development of highly efficient and stable electrocatalysts for their application in electrochemical detection is desirable. Herein, a new copper nanowires (CuNWs) modified electrode was fabricated by coating poly(dimethyl diallyl ammonium chloride) (PDDA) stabilized CuNWs composite onto the...

The copper price is a leading indicator of real estate activity. Price increases are statistically related to increasing numbers of applications for residential building permits. However, this reciprocity is not instantaneous as permit numbers lag price rises by 9 to 10 months. This dynamic is...

The motivation of this paper is to identify the effect of treatment charge (TC) on LME (London Metal Exchange) copper prices. It is a fundamental variable as a supply side factor, because it is related to the smelting process and reflects the level of concentrates market tightness. To examine...

This paper is about understanding the cycle of global copper price booms and busts over Zambia's economic history. We explore how the mining industry has been managed, and wider economic management during boom periods. We find that successive Zambian governments did not use copper revenues to...

"This is a history of copper as a commodity, which focuses on copper produced in Swansea, Wales, and sold around the world. Between the 1770s and the 1840s, the Swansea district produced nearly half of the world's smelted copper. This book traces the history of copper making in Britain beginning...

This paper analyzes Zambian export patterns using a new transaction-level trade data set for the period 1999-2011. The data show that, in international comparison, Zambian exports are exceptionally concentrated (on mining products). This reliance has been increasing in recent years. Zambia's...

We use data from the London Metal Exchange (LME) to forecast monthly copper returns using the recently proposed dynamic model averaging and selection (DMA/DMS) methodology which incorporates time varying parameters as well as time varying model averaging and selection into a unifying framework....

"Historically, many countries have suffered a pattern of procyclical fiscal policy: spending too much in booms and then forced to cut back in recessions. This problem has especially plagued Latin American commodity exporters. Since 2000, fiscal policy in Chile has been governed by a structural...

The purpose of this paper is to examine the behavior of copper spot prices in London Metal Exchange. Besides, we examine the relation between hedging effectiveness and the maturity of the contract. This research provides an empirical comparison of different econometric techniques in the context...