Im Sommer 2023 schloss die EU eine strategische Rohstoffpartnerschaft mit Chile. Während sich die EU dadurch besseren Zugang zu kritischen Rohstoffen wie Lithium und Kupfer verspricht, strebt Chile eine stärkere Diversifizierung seines Rohstoffsektors und eine höhere lokale Wertschöpfung an....

Im Sommer 2023 schloss die EU eine strategische Rohstoffpartnerschaft mit Chile. Während sich die EU dadurch besseren Zugang zu kritischen Rohstoffen wie Lithium und Kupfer verspricht, strebt Chile eine stärkere Diversifizierung seines Rohstoffsektors und eine höhere lokale Wertschöpfung an....

Die EU setzt für ihre Versorgung mit sogenannten kritischen Rohstoffen auf eine Verstärkung der Kooperation mit gleichgesinnten Staaten. Als "perfect match" sieht EU-Kommissionspräsidentin von der Leyen in diesem Zusammenhang Kanada an, ein rohstoffreicher und verlässlicher Partner, der die...

The European Union (EU) is aiming to strengthen its cooperation with like-minded countries to secure its supply of so-called critical raw materials. European Commission President Ursula von der Leyen considers Canada a "perfect match" - a resource-rich and reliable partner that shares the EU's...

Die EU setzt für ihre Versorgung mit sogenannten kritischen Rohstoffen auf eine Verstärkung der Kooperation mit gleichgesinnten Staaten. Als "perfect match" sieht EU-Kommissionspräsidentin von der Leyen in diesem Zusammenhang Kanada an, ein rohstoffreicher und verlässlicher Partner, der die...

The paper examines the leverage effects and the spillover effects in the base metal cash and futures market. The study also attempts to find the trend and the pattern of volatility clustering in the base metal markets of India. Further, the significance of the risk premium and the possible...

China's rapid urbanization and industrialization made it the world's largest refined copper producer and consumer. Insufficient copper ore reserves necessitated significant imports. Using material flow and scenario analysis, this study examined historical copper supply and assessed future...

The aim of the article is to try to explain the long-term price volatility of KGHM shares. Therefore the paper presents the relationship between KGHM stock prices and High Grade copper prices. The empirical part of the paper uses econometric cointegration analysis. Based on the estimated models,...

The COVID-19 pandemic has introduced significant uncertainty across various economic sectors, most notably in the industrial sector due to the high volatility in copper futures markets. These markets play a crucial role in the construction, electrical networks, electronic products, and...

There is increased interest in the dynamic relationships between cryptocurrency and commodity futures. This study examines the hedging performance of four well-known commodity futures against fluctuations in Bitcoin prices. Furthermore, this study used the DCC- and ADCC-MGARCH models to estimate...

This paper examines the impact of spillover effects of energy transition metals on the Chilean economy. With the increasing demand for metals like copper and lithium due to the growth in renewable energies and electromobility, metal abundant countries like Chile must ready themselves to remain...

In this essay, I analyze the nationalization of large copper mines during Salvador Allende's socialist government in Chile in the 1970s. This is one of the earliest cases "nationalization without compensation." Chile's legal argument was based on the novel idea that "adequate" payment should be...

In 1611 the young Gustav Adolf Vasa ascended the throne of Sweden as Gustav II Adolf. Along with the throne, the king inherited a disastrous war with Denmark, which he ended by signing the onerous Peace of Knäred. The terms included the obligation for Sweden to pay a one million rixdaler...

The development of integrated porous carbon materials based on transition metal oxides for used as catalysts with high efficiency and robust advantages in heterogeneous electro-Fenton like (EF-like) reaction were supposed to be widely used in effectual removing refractory sewage. Herein, an...

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...

Evaporation of sessile droplets on hot surfaces is the most important component in spray cooling and other processes. In this paper, the dynamic characteristics of non-boiling evaporation of sessile droplets on the copper surface are obtained by experimental methods under the condition of...

With the development of 5G communication, more demanding requirements have been specified for copper alloy strips for lead frames. Thin copper alloy strips with high residual stress always warp during the etching process, and they cannot meet the requirements of industry. Therefore, it is...

Development of an under-liquid super-repellent (ULSR) surface that can be used for separating both liquid/liquid and liquid/gas mixtures is strongly desirable, yet still hard to realize. Herein, to address this challenge, a Cu(OH) 2 nanowire textured surface on copper mesh was developed through...

Vineyards with a long history of cultivation in sandy and clayey soils, located in regions presenting subtropical climate, still lack studies associating Copper (Cu) and Zinc (Zn) fraction accumulation with distribution dynamics, as well as studies about the maximum adsorption capacities (MAC)...

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...

Enrofloxacin (ENR) is a widely used veterinary fluoroquinolone antibiotic and is frequently detected in water environments. In this study, degradation of ENR was investigated by molecular oxygen mediation using nanometer zero-valent copper (nZVC) as the catalyst. The dosage of nZVC, initial pH,...

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...

First, 5732 MOFs with copper open sites were selected by the open metal detector from 13512 TOBACCO-MOFs. A hierarchical strategy was used to select out 1092 MOFs from those MOFs, and their adsorption capacity of the equimolar CO2/H2 mixture at 298 K and 10 bar was further calculated using the...

A weak anion exchange resin (WAER) modified with Cu 2+ ions was prepared and its adsorption behavior for phosphate species in batch and column systems were examined. While pristine WAER adsorbed phosphate species by Bronsted acid-base interaction, the Cu-WAER captured phosphate species mainly...

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...

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...

Pure copper (Cu) and copper-carbon nanotube (Cu-CNTs) alloys were fabricated using laser powder bed fusion additive manufacturing (LPBF-AM) with a relatively high density. Their location-dependent (i.e., distance from build plate) microstructure and nanomechanical properties at room temperature...

In order to meet the requirements of "wide frequency bands, lightweight, and strong absorption" of absorbing materials, a uniform mixture of FeAl 2 O 4 ferrite and Cu/RGO was obtained by the mechanical mixing method. The Cu/RGO (Reduction Graphene Oxide) composite powders were synthesized by the...

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+...

Constructing nanoporous or nanocavity structure provides an electrocatalytic platform for enhancing active surface area and local mass density. The construction and preservation of specific geometry from the harsh electrochemical environments are critical for improving the catalytic performance...

In 1611 the young Gustav Adolf Vasa ascended the throne of Sweden as Gustav II Adolf. Along with the throne, the king inherited a disastrous war with Denmark, which he ended by signing the onerous Peace of Knäred. The terms included the obligation for Sweden to pay a one million rixdaler...

This paper introduces a model for intraday copper futures prices based on a stochastic differential equation (SDE). In particular, we derive an SDE that fits the model to the data and that is based on the whitening filter approach, a method characterizing linear time-variant systems. This method...

In 1611, the seventeen-year-old Gustav Adolf ascended the throne of Sweden. Before the new king could sit on his throne, however, he faced a disastrous war against Denmark, another conflict in Russia, and a rebellious nobility at home. Plus, Sweden itself had an arctic climate and a short...