Results 71 to 80 of about 180,719 (248)

Combustion Characteristics of HAN-based Green Propellant Assisted with Nanoporous Active Carbons

Eurasian Chemico-Technological Journal, 2017
Combustion of hydroxylammonium nitrate (95 wt.% HAN) ‒ water solution in presence of high specific surface area activated carbons is investigated in a constant-pressure bomb within the pressure range of 1‒6 MPa. The linear burning rate increased for the
M. K. Atamanov, R. Amrousse, J. Jandosov, K. Hori, A. R. Kerimkulova, D. I. Chenchik, B. Y. Kolesnikov   +6 more
doaj   +1 more source

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

Favored decomposition paths of hydrogen sulfide at high pressure

New Journal of Physics, 2019
Sulfur trihydride (H _3 S) is a theoretically predicted high-pressure superconductor and has been experimentally confirmed to have the highest superconducting transition temperature T _c . Solid H _2 S decomposition is considered as the primary source of
Ting Ting Cui, Da Chen, Jian Chen Li, Wang Gao, Qing Jiang   +4 more
doaj   +1 more source

New AI‐Assisted Approach for Expanding the Solution Space: Application to Lattice Structure Design

Advanced Engineering Materials, EarlyView.
This work introduces an innovative framework for designing structured materials by ex panding the design space through reparameterization of qualitative variables into continuous structural descriptors. Combined with machine‐learning‐based prediction and multi‐objective optimization, the approach enables the discovery of novel lattice architectures ...
G. H. Gahimbare, Y. Beideler, D. Chune, R. De Guio, T. Roland, H. Chibane   +5 more
wiley   +1 more source

Spectrum Sensing for Cognitive Coexistent Heterogeneous Networks

International Journal of Distributed Sensor Networks, 2013
This paper proposes a noncoherent spectrum sensing scheme for the cognitive coexistent heterogeneous networks with the assistance of geolocation information of primary and secondary nodes.
Bingxuan Zhao, Shigenobu Sasaki
doaj   +1 more source

External and Internal Cracking Caused by Heat Treatment in Laser Powder Bed Fusion‐Fabricated Inconel 738LC Components

Advanced Engineering Materials, EarlyView.
Manufacturing problems such as heat treatment‐induced cracking hinder the widespread application of the laser powder bed fusion (LPBF) process to superalloys. In this study, cracks in the LPBF components of Inconel 738LC superalloy are characterized after heat treatment at various temperature ranges, revealing two distinct cracking behaviors.
Kosuke Kuwabara, Masahiro Kusano, Ayako Ikeda, Toshio Osada, Makoto Watanabe   +4 more
wiley   +1 more source

Sparse high-dimensional decomposition of non-primary auditory cortical receptive fields.

PLoS Computational Biology
Characterizing neuronal responses to natural stimuli remains a central goal in sensory neuroscience. In auditory cortical neurons, the stimulus selectivity of elicited spiking activity is summarized by a spectrotemporal receptive field (STRF) that ...
Shoutik Mukherjee, Behtash Babadi, Shihab Shamma   +2 more
doaj   +1 more source

High‐Temperature Phase Transformation in a V‐9Si‐6.5B Alloy: The Kinetic and Crystallographic Pathway From V5SiB2 to V8SiB4

Advanced Engineering Materials, EarlyView.
In situ synchrotron high‐energy X‐ray diffraction reveals the real‐time high‐temperature phase evolution of a ternary V‐9Si‐6.5B alloy. The study uncovers a kinetically delayed V5SiB2 → V8SiB4 transformation governed by massive structural and chemical barriers.
Zahra Sabeti, Andreas Stark, Roja Rani Korrayi, Florian Pyczak, Georg Hasemann   +4 more
wiley   +1 more source

Influences of Carrion Decomposition on Soil Nutrient Leakage in a Boreal Forest

Ecology and Evolution
Carrion decomposition can significantly alter local soil chemical composition. Although a wide range of chemical elements is essential for plants and/or animals, hence ecosystem functioning, most studies on biochemical effects of carrion decomposition ...
E. Wenting, M. P. Arnberg, D. F. Delsman, H. Siepel, F. vanLangevelde, S. M. J. G. Steyaert   +5 more
doaj   +1 more source

Primary and coprimary decompositions [PDF]

Proceedings of the Edinburgh Mathematical Society, 1973
Let R be an associative, commutative ring with identity, and let A be a (unitary) R-module. It is well known that if A is a Noetherian R-module then every submodule of A has a primary decomposition in A. The object of the present paper is to dualise this result; that is, to show that if A is an Artinian R-module then every submodule of A can be ...
openaire   +1 more source