Results 141 to 150 of about 475,391 (309)

Divided Diasporas: Southern Africans in Canada [PDF]

, 2013
The protracted economic and political crisis in Zimbabwe led directly to a major increase in mixed migration flows to South Africa. Migrants were drawn from every sector of society, all education and skill levels, equal numbers of both sexes, and all ...
Caesar, Mary, Chikanda, Abel, Crush, Jonathan, Eberhardt, Cassandra, Hill, Ashley, Pendleton, Wade, Ramachandran, Sujata   +6 more
core   +1 more source

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan, Rhena Wulf, Till M. J. Stadtmüller, Christos G. Aneziris, Tobias M. Fieback   +4 more
wiley   +1 more source

Analysis of the Ukrainian migration crisis from the perspective of contemporary migration theories [PDF]

Annales Scientia Politica
The paper examines the issue of Ukrainian migration since Ukraine's independence and the Ukrainian migration crisis that arose as a result of the Russian Federation's military invasion of Ukraine in 2022, from the perspective of contemporary migration ...
Matúš Žac
doaj  

South Africa Case Study: The Double Crisis – Mass Migration From Zimbabwe And Xenophobic Violence in South Africa [PDF]

, 2017
The protracted economic and political crisis in Zimbabwe led directly to a major increase in mixed migration flows to South Africa. Migrants were drawn from every sector of society, all education and skill levels, equal numbers of both sexes, and all ...
Chikanda, Abel, Crush, Jonathan, Ramachandran, Sujata, Tawodzera, Godfrey, Tevera, Daniel   +4 more
core   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Constitutionalising the External Dimensions of EU Migration Policies in Times of Crisis. Legality, Rule of Law and Fundamental Rights Reconsidered. Research Paper. July 2019 [PDF]

, 2019
This discerning book examines EU migration and asylum polices in times of crisis by assessing old and new patterns of cooperation in EU migration management policies in the scope of third-country cooperation.
Carrera, Sergio, Santos Vara, Juan, Strik, Tineke   +2 more
core  

Investigation of Thermo‐Chemical Processes in Commercial MgO‐C Refractory Bricks With and Without MgO‐C Recyclate at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm, Jana Hubálková, Christian Schimpf, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +6 more
wiley   +1 more source

Women in the right-wing radical parties of Germany at the beginning of the XXI century

Гуманитарные и юридические исследования
Introduction. The increasing role of women in all spheres of public and political life in the modern Federal Republic of Germany, which is characteristic of the twenty-first century, has also affected the right-wing part of the political spectrum, which ...
V. Yu. Shsherbakov
doaj   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

Investigation of Oxygen‐Free Wetting Behavior of Aluminum on Copper via Molecular Dynamics Simulations and Experiments

Advanced Engineering Materials, EarlyView.
The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu, Timon Steinhoff, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Christian Klose, Ludger Overmeyer, Hans‐Jürgen Maier, Nina Merkert   +8 more
wiley   +1 more source