Results 211 to 220 of about 67,013 (310)

Chemistry for the Warfighter: Midshipman Research at the U.S. Naval Academy. [PDF]

ACS Omega
Brammer Basta LA, Luning Prak DJ, Teichert MA, Yates EA.   +3 more
europepmc   +1 more source

Advanced Composite Technologies for High‐Performance Sports Equipment: Materials, Manufacturing, and Sustainability Perspectives

Polymers for Advanced Technologies, Volume 37, Issue 5, May 2026.
ABSTRACT Advanced composite materials have become the leading material platform for high‐performance sports equipment, enabling superior strength‐to‐weight performance, stiffness tailoring, and enhanced functional integration compared with conventional materials. This review summarizes state‐of‐the‐art developments across multiple sporting disciplines,
Alhayat Getu Temesgen, Ümit Koç, Jörg Kaufmann, Holger Cebulla, Ercan Aydoğmuş, Hasan Arslanoğlu   +5 more
wiley   +1 more source

Experimental Study on the Evolution of Mechanical Properties and Their Mechanisms in a HTPB Propellant Under Fatigue Loading. [PDF]

Polymers (Basel)
Feng F, Chen X, Xu J, Zeng Y, Huang W, Dong J.   +5 more
europepmc   +1 more source

Assessment of the Interaction between Ammonium Dinitramide and Isocyanurate Bonding Agents for Application on Technologies of Composite Solid Propellants

Propellants, Explosives, Pyrotechnics, Volume 51, Issue 5, Page 724-732, May 2026.
This work investigates the interaction of two isocyanurate‐based bonding agents with ammonium dinitramide: triallyl isocyanurate and 1,3,5‐tris(2‐hydroxyethyl) isocyanurate, which contain alkene and hydroxyl functional groups in their side chains, respectively.
Jessica O. Silva, Josiane R. C. Silva, Kamila P. Cardoso, Milton F. Diniz, Márcio Y. Nagamachi, Luiz F. A. Ferrão   +5 more
wiley   +1 more source

Modeling fatigue damage evolution in CMDB propellant based on dynamic modulus. [PDF]

Sci Rep
Yao L, Jinsheng X, Changsheng Z, Xiong C, Xiumin Y.   +4 more
europepmc   +1 more source

Characterization of Ultrafast Decomposition Dynamics in Nitrate Esters

Propellants, Explosives, Pyrotechnics, Volume 51, Issue 5, Page 714-723, May 2026.
ABSTRACT Ignition of energetic materials initiates chemical reactions on atomic length scales within femtoseconds, making these reactions difficult to investigate experimentally. The technique of femtosecond time‐resolved mass spectrometry (FTRMS) can capture molecular rearrangement and bond‐breaking events in isolated molecules with sub‐50 femtosecond
Madison K. Minvielle, Erica Britt, Hugo A. López Peña, Katharine Moore Tibbetts   +3 more
wiley   +1 more source

Generation of a 28 GHz annular power distribution with high power gyrotron and its application to microwave driven in tube accelerator. [PDF]

Sci Rep
Takahashi M, Yamada T, Minami R, Kariya T, Shimamura K.   +4 more
europepmc   +1 more source

Filling a Gap in Materials Mechanics: Nanoindentation at High Constant Strain Rates up to 105 s−1

Small, Volume 22, Issue 28, 18 May 2026.
A piezoelectric nanoindentation platform enables constant strain‐rate testing up to 105 s−1, extending experimental capabilities to extreme deformation regimes. Distinct hardness upturns are revealed across crystalline and amorphous materials, verified as intrinsic responses through quasi‐static reloading.
Lalith Kumar Bhaskar, Dipali Sonawane, Hendrik Holz, Jeongin Paeng, Peter Schweizer, Jing Rao, Bárbara Bellón, Damian Frey, Aloshious Lambai, Laszlo Pethö, Johann Michler, Jakob Schwiedrzik, Gaurav Mohanty, Gerhard Dehm, Rajaprakash Ramachandramoorthy   +14 more
wiley   +1 more source

Audio-Based Engine Fault Diagnosis with Wavelet, Markov Blanket, ROCKET, and Optimized Machine Learning Classifiers. [PDF]

Sensors (Basel)
Tuleski BL, Yamaguchi CK, Stefenon SF, Coelho LDS, Mariani VC.   +4 more
europepmc   +1 more source

Radiative Forcing and Ozone Depletion of a Decade of Satellite Megaconstellation Missions

Earth's Future, Volume 14, Issue 5, May 2026.
Abstract Satellite megaconstellations (SMCs) are driving rapid increases in rocket launch and re‐entry rates, emitting pollutants throughout the atmosphere. The environmental impact of SMCs lacks characterization to determine the need for regulation. We utilize a global 3D emission inventory of recent (2020–2022) space activity that distinguishes SMC ...
Connor R. Barker, Eloise A. Marais, Eric Y. P. Tan, Sebastian D. Eastham, Glenn S. Diskin, Joshua P. DiGangi, Yonghoon Choi, Andrew W. Rollins, Eleanor Waxman, T. Paul Bui, Charles K. Gatebe, Jonathan Dean‐Day, Rajesh Poudyal   +12 more
wiley   +1 more source