Results 61 to 70 of about 439 (179)

Analysis of the characteristics of the ejector mode of the pulse detonation propulsion system of the combined acceleration cycle

Авіаційно-космічна техніка та технологія
The subjects of this article are processes in the chamber of the pulse detonation propulsion system of the combined acceleration cycle (PSCA). The goal is to identify the most significant factors and study their influence on the defining characteristics ...
Olena Zolotko, Oleksandr Zolotko, Oleksandr Aksonov, Vitalii Stoliarchuk, Oleksandr Cherniavskyi   +4 more
doaj   +1 more source

Crash Behavior of DP800–DP1000 Advanced High‐Strength Steel’s Dissimilar Resistance Spot Welded Joints Under Quasi‐static and High Strain Rates

steel research international, EarlyView.
The high‐strain‐rate behavior of resistance spot‐welded DP800–DP1000 joints is investigated. Results show that microstructural gradients across BM–HAZ–FZ govern hardness, strain rate sensitivity, and failure modes. While strength increases with strain rate, energy absorption is controlled by ductility, with DP800–DP800 joints showing superior ...
Pankaj Shrivastava, Velaphi Msomi
wiley   +1 more source

Sino‐Mexican Encounters Before the ‘Diplomatic Opening’: Exhibition Diplomacy and Grassroots Friendship in the 1960s

History, EarlyView.
Abstract During the 1960s, Mexico's Institutional Revolutionary Party (PRI) embraced Chinese overtures for a commercial opening as consistent with its anti‐imperialist posture, thereby foreshadowing the diplomatic opening to China in 1972. Yet this professed ideological pluralism was eclipsed by an underlying allegiance to the United States' anti ...
YIXIN TIAN
wiley   +1 more source

ORCHESTRATING DIFFERENCE AND SIMILARITY: Black Fungibility, and the Spatial Redrawing of Racial Categories in Spanish Colonial Morocco, Sahara and Guinea

International Journal of Urban and Regional Research, EarlyView.
Abstract In this article I dissect the spatial strategies through which the Spanish attempted to orchestrate both racial difference and similarity in the African colonies of Morocco, Western Sahara and Equatorial Guinea during the first half of the twentieth century.
Pol Fité Matamoros
wiley   +1 more source

Fuel regression behavior of swirling-injection end-burning hybrid rocket engine

Journal of Fluid Science and Technology, 2019
Burning experiments were conducted to better understand the fuel regression behavior in a swirling-injection end-burning hybrid rocket engine using paraffin wax/gaseous oxygen propellant.
Takashi SAKURAI, Yuya OISHIGE, Kazuyuki SAITO   +2 more
doaj   +1 more source

Developing Workforce Capability in the Context of HR Ecosystem Learning

Human Resource Management Journal, EarlyView.
ABSTRACT For many organizations, developing workforce capabilities is central as it involves refining critical human resource processes such as upskilling or the acquisition of new profiles. These processes are becoming increasingly complex to manage as organizations collaborate within larger work ecosystems. Surprisingly, little research has addressed
Sophie D'Armagnac, Eric Michael Laviolette, Thierry Ruaud, Juani Swart   +3 more
wiley   +1 more source

Multiplying Elements of Fragmentation? Polycentrism, the Launcher Crisis and the Future of Europe in Space

Global Policy, EarlyView.
ABSTRACT This article explores the current controversies surrounding the European Ariane launcher and its implications for the future of European space governance. The Ariane program, historically a symbol of European technopolitical integration, faces mounting challenges due to delays, rising costs and increasing competition from private actors like ...
Nina Klimburg‐Witjes, Joseph Popper
wiley   +1 more source

Simulation of the processes of spraying and combustion of kerosene and liquid oxygen in the chamber of a liquid-propellant rocket engine

Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение
The paper presents the results of simulation of spray and combustion processes in the liquid-propellant rocket engine chamber using the z77 reduced kinetic mechanism of chemical reactions and a hybrid method for determining spray parameters of a swirl ...
M. N. Senchev, I. A. Zubrilin, A. A. Yurtaev, М. A. Benedyuk, Yu. V. Komisar   +4 more
doaj   +1 more source

Optimization of the stand for test of hybrid rocket engines of solid fuel

MATEC Web of Conferences, 2017
In the paper the laboratory experimental stand of the hybrid rocket engine of solid fuel to study ballistic parameters of the engine at burning of high-energy materials in flow of hot gas is presented.
Zolotorev Nikolay, Kuznetsov Valeriy, Konovalenko Aleksey   +2 more
doaj   +1 more source

Polymer Combustion as a Basis for Hybrid Propulsion: A Comprehensive Review and New Numerical Approaches

Energies, 2011
Hybrid Propulsion is an attractive alternative to conventional liquid and solid rocket motors. This is an active area of research and technological developments.
Vasily Novozhilov, Hui Wang, Jun Liu, Keiichi Ishiko, Toru Shimada, Paul Joseph   +5 more
doaj   +1 more source