Results 51 to 60 of about 231,786 (265)

Rare earth metals of Ukraine: strategic resources for the development of the current global economy

Мінеральні ресурси України
Ukraine has significant mineral resource potential for rare earth elements, concentrated within the Ukrainian Shield. There are two main metallo­genic provinces within its boundaries: the Western (Ingulets-Volyn-Podillia) Province and the Eastern (Azov ...
V. V. Sukach, A. P. Vasylenko, M. V. Heichenko   +2 more
doaj   +1 more source

Light‐Assisted 3D Printing Techniques and Photocrosslinking Strategies: Recent Advances in Musculoskeletal Tissue Engineering

Advanced Engineering Materials, EarlyView.
In this review, the current state of light‐assisted 3D printing as it pertains to engineering musculoskeletal tissues including bone, cartilage, skeletal muscle, tendon, and ligaments is summarized. Common printing techniques, photoreactive materials, and study design choices are compiled and reviewed.
Meagan Morgan, Bin Zhang, Roger Narayan
wiley   +1 more source

The Impact of Fiscal Science and Technology Expenditure on Digital Economy: A New Path to Economic Recovery in The Post-Pandemic Era

Buletin Ekonomi Moneter dan Perbankan
In this study, a multi-dimensional digital economy evaluation index system is constructed to explore the impact of fiscal Science and Technology (S&T) expenditure on digital economy development in China. We reveal the following findings.
Yang Xu, Xiaodong Yang, Qiying Ran
doaj   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Recovery Prospects of the South African Economy in the Aftermath of the Covid-19 Pandemic: Analyses of Key Macroeconomic Variables

Expert Journal of Economics, 2022
The purpose of this study is firstly to assess the impact of the Covid-19 pandemic on the South African economy and secondly, to explore the recovery prospects in the aftermath of the pandemic.
Ephrem Habtemichael REDDA
doaj  

THE DYNAMICS OF THE MAIN ECONOMIC SECTORS IN ROMANIA THROUGH THE LENS OF THE UKRAINIAN WAR [PDF]

Buletin ştiinţific: Universitatea din Piteşti. Seria Ştiinţe Economice, 2022
The negative effects of the war led to the degradation of the Romanian economy given the fact that it made it difficult to obtain raw materials, but also resources whose main suppliers were the two involved parties, respectively Russia and Ukraine. The
Marinela BĂRBULESCU , Alina HAGIU
doaj  

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

THE ROLE OF CENTRAL BANKS IN POST-PANDEMIC ECONOMIC RECOVERY: REALITIES AND PERSPECTIVES [PDF]

Buletin ştiinţific: Universitatea din Piteşti. Seria Ştiinţe Economice, 2022
Romania's economy has honorably withstood the crisis caused by the covid-19 pandemic, given the limited budgetary space available to the authorities to intervene in support of companies and individuals affected by the virus and the restrictions imposed ...
Marinela BĂRBULESCU , Alina HAGIU
doaj  

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

Spin Injection Of Exciton–Polaritons With Halide Perovskites At Room Temperature

Advanced Functional Materials, EarlyView.
A monolithic Tamm‐plasmon microcavity embedding a two‐dimensional halide perovskite enables room‐temperature spin injection of exciton‐polaritons under quasi‐resonant optical excitation. Polarization‐resolved spectroscopy reveals partial preservation of the injected spin in the lower polariton branch, while bare excitons remain fully depolarized.
Elena Sendarrubias Arias‐Camisón, Maksim Lednev, Jorge Cuadra, Raúl Gago, Luis Viña, Francisco José García Vidal, Johannes Feist, Ferry Prins, Carlos Antón Solanas   +8 more
wiley   +1 more source