Results 41 to 50 of about 439 (179)

Hypergolic Copper Cluster‐Based Covalent Organic Frameworks

Advanced Science, EarlyView.
Hpergolic cluster‐based covalent organic framework (Cu3‐CB‐COF), assembled from aldehyde‐functionalized carborane monomers and trinuclear copper clusters, demonstrates a strong synergy between its catalytic copper nodes and energetic carborane backbones.
Yu‐Zhou Qiao, Cai Li, Wen‐Yang Jiao, Guoqiang Sun, Xiao‐Fei Liu, Shuang‐Quan Zang   +5 more
wiley   +1 more source

QCr0.8 Cu alloy /S06 stainless steel bimetal structure via In718 multi-interlayer fabricated by laser powder hybrid additive manufacturing

Journal of Materials Research and Technology, 2023
Fabricating high strength high conductivity (HSHC) Cu alloy inner parts by laser powder bed fusion (LPBF) and high-strength steel out layers on Cu alloy surfaces by laser-direct energy deposition (LDED), e.g., laser powder hybrid additive manufacturing ...
Baopeng Zhang, Wenqi Zhang, Haifeng Xiao, Haihong Zhu, Huanqing Yang, Yun Wang, Baijin Chen   +6 more
doaj   +1 more source

Emerging Memory and Device Technologies for Hardware‐Accelerated Model Training and Inference

Advanced Electronic Materials, EarlyView.
This review investigates the suitability of various emerging memory technologies as compute‐in‐memory hardware for artificial intelligence (AI) applications. Distinct requirements for training‐ and inference‐centric computing are discussed, spanning device physics, materials, and system integration.
Yoonho Cho, Dae‐won Kim, Yujin Kim, Jung‐Heum Na, Yuwon Jeong, Dong‐Yeop Lee, Shinhyun Choi   +6 more
wiley   +1 more source

Strengthening urban resilience in China through underground infrastructures management: Addressing global climate challenges with technological solutions

Deep Underground Science and Engineering, EarlyView.
This paper explores how climate‐resilient technologies, such as smart grids, digital twins, and self‐healing materials, can enhance urban resilience. It highlights the urgent need for proactive planning, public‐private collaboration, and data‐driven innovation to future‐proof underground infrastructure amid accelerating climate and urban pressures ...
Kai Chen Goh, Tonni Agustiono Kurniawan, Christia Meidiana, Abdelkader Anouzla, Faissal Aziz, Imran Ali, Joan Cecilia C. Casila, M. Imran Khan, Dongdong Zhang, Meihui Jiang, Mohd Hafiz Dzarfan Othman, Md Munir Hayet Khan, Kasun Kumara Dissanayake   +12 more
wiley   +1 more source

Technology Development Outsourcing: When to Join Forces With a Rival?

Journal of Operations Management, EarlyView.
ABSTRACT Knowing the challenges of collaborating with a competitor in developing new technologies, firms sometimes still choose a competitor instead of a noncompeting technology provider. To explore why, this study adopts an inter‐organizational trust view to explain the formation of a technology development outsourcing relationship.
Tingting Yan, Hubert Pun, Dina Ribbink
wiley   +1 more source

Investigation of Performance Stability of a Nytrox Hybrid Rocket Propulsion System

Aerospace
Nitrous oxide is a highly suitable oxidizer for hybrid rockets due to its self-pressurizing properties, moderate cost, and high accessibility. However, its vapor pressure and density are highly dependent on ambient temperature, requiring careful ...
Shih-Sin Wei, Jui-Cheng Hsu, Hsi-Yu Tso, Jong-Shinn Wu   +3 more
doaj   +1 more source

Visualization and Emission Spectra of Flames in Combustion Chamber of Swirling-Oxidizer-Flow-Type Hybrid Rocket Engines

Journal of Thermal Science and Technology, 2011
In order to clarify flame behavior in the combustion chamber of swirling-oxidizer-flow-type hybrid rocket engines, a small hybrid rocket engine with a large quartz glass window was fabricated to observe the inside of the combustion chamber from the front
Saburo YUASA, Tatsuya IDE, Miho MASUGI, Takashi SAKURAI, Noriko SHIRAISHI, Toru SHIMADA   +5 more
doaj   +1 more source

First 20 Years of Orbitrap Mass Spectrometry as the Mainstream Analytical Technique

Mass Spectrometry Reviews, EarlyView.
ABSTRACT This review traces the first 20 years of Orbitrap mass spectrometry as a mainstream high‑resolution and accurate‑mass (HR/AM) technology. It outlines the historical development of the Orbitrap analyzer, the evolution of major instrument families, and the key technological innovations that enabled its widespread adoption. Particular emphasis is
Alexander Makarov
wiley   +1 more source

Hydrodynamic Instabilities Modeling in Hybrid Rocket Engines [PDF]

Journal of Spacecraft and Rockets, 2019
Firing tests of a H2O2/polyethylene hybrid rocket motor were performed and analyzed in terms of pressure oscillations under various configurations, using liquid oxidizer injection or gaseous inject...
Jérôme Messineo, Jean-Yves Lestrade, Jouke Hijlkema, Jérôme Anthoine   +3 more
openaire   +1 more source

Testing of the N₂O/HDPE Vortex Flow Pancake Hybrid Rocket Engine with Augmented Spark Igniter

Aerospace, 2023
The paper is part of the research aimed at determining if the vortex flow pancake (VFP) hybrid rocket engine is feasible as green in-space chemical propulsion.
Tomasz Palacz, Jacek Cieślik
doaj   +1 more source