Results 51 to 60 of about 1,610,384 (301)

Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter, Felix Drechsler, Till M. J. Stadtmüller, Cameliu Himcinschi, Christos G. Aneziris, Jens Kortus   +5 more
wiley   +1 more source

SUSTAINABLE DEVELOPMENT IN THE SPACE ECONOMY: CONCEPTUAL FOUNDATIONS AND FUTURE CHALLENGES

Green, Blue and Digital Economy Journal
The purpose of this study is to provide a comprehensive analysis of the conceptual foundations of the formation and development of the space economy in a global dimension, to determine its contribution to sustainable development, and to identify the key
Karyna Anapriiuk
doaj   +1 more source

Space communications serve the national economy [PDF]

USSR thoughts on space communication and artificial earth ...

core   +1 more source

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source

Dialogue with Leading Researchers: Suggestions for the Development of Space Medicine in Korea

Hanggong uju uihakoeji
In the Fall Conference of the Korean Microgravity Society, the panel talk of space medicine was held on November 5th, 2025. Six medical experts participated, and they discussed the achievements and strategies of domestic research in space medicine ...
Gyutae Kim, Kyu-Sung Kim
doaj   +1 more source

Protocols for postcapitalist finance: A reply

Finance and Society
Protocols for Postcapitalist Expression is a book published by members of the Economic Space Agency. Its objective is to frame protocols (social agreements) on which to build the conditions for an economic system that is distributed (no centralised ...
Dick Bryan
doaj   +1 more source

The impact of space and space-related activities on a local economy. a case study of boulder, colorado. part i- the input-output analysis [PDF]

Impact of space and space-related activities on industry and general economy of Boulder ...
Bonner, E. R., Chapman, J. H., Jr., Miernyk, W. H., Shellhammer, K.   +3 more
core   +1 more source

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source

Note on the Core-Walras Equivalence Problem when the Commodity Space is a Banach Lattice [PDF]

The core-Walras equivalence problem for an atomless economy is considered in the commodity space setting of Banach lattices. In particular, necessary and sufficient conditions on the commodity space in order for core-Walras equivalence to hold are ...
Konrad Podczeck
core  

Corrosion and Process Analysis of a Preoxidized MgO Recyclate‐Based Cermet Anode in Laboratory‐Scale Na‐Cryolite Molten Salt Electrolysis of Aluminum at 1000°C

Advanced Engineering Materials, EarlyView.
EDX elemental map of the pre‐oxidized MgO–steel cermet anode cross section after electrolysis. The development of inert anodes for aluminum electrolysis remains challenging due to the high corrosivity of cryolite‐based melts at 950°C–1000°C. This study investigates the corrosion and process behavior of a carbon‐free MgO–steel cermet anode derived from ...
Alexander Adamczyk, Farhan Hossain, Felipe A. Garcia Paz, Serhii Yaroshevskyi, Felix Drechsler, Daniel Vogt, Christos G. Aneziris, Alexandros Charitos   +7 more
wiley   +1 more source