Results 101 to 110 of about 9,936 (212)
Rotorcraft technology at Boeing Vertol: Recent advances [PDF]
An overview is presented of key accomplishments in the rotorcraft development at Boeing Vertol. Projects of particular significance: high speed rotor development and the Model 360 Advanced Technology Helicopter.
Dadone, Leo, Shaw, John, Wiesner, Robert
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Small, Volume 22, Issue 27, 14 May 2026.This study presents a computational framework treating crystalline HOFs as adaptive atomic‐scale interfaces. Catenated HOFs preserve lattice stability under load while enabling auxetic deformation and reversible nonlinearity. The results provide direct evidence that supramolecular interactions govern macroscopic resilience and structural adaptability ...
Byeonghwa Goh, Joonmyung Choi
wiley +1 more source
A spectroscopic study of intermediates in the condensation of refractory smokes: Matrix isolation experiments SiO [PDF]
The infrared and Raman spectra of N2 matrix isolated silicon oxides are investigated. The vibrational frequencies of SiO, Si2O2, and Si3O3 were identified and assigned on the basis of normal coordinate analyses. Heating the solid to 50 K (evaporating the
Donn, D., Khanna, R. K., Stranz, D. D.
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Small Science, Volume 6, Issue 5, May 2026.A minor steric modification in molecular donors (DCV‐iPr vs DCV‐Me) leads to distinct packing motifs, which govern excitonic interactions and optical properties in vacuum‐processed organic solar cells. DCV‐iPr forms a brick‐wall, J‐like aggregated structure with sharp absorption and improved photovoltaic performance, whereas DCV‐Me exhibits H‐like ...
Mohamed el habib Bouajhine +14 more
wiley +1 more source
Applications technology satellite gravity gradient stabilization system Quarterly progress report, 1 Nov. 1966 - 31 Jan. 1967 [PDF]
Gravity gradient stabilization system for applications technology ...
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Small Methods, Volume 10, Issue 9, 8 May 2026.Carbon nanotubes (CNTs) were successfully debundled from Tuball soots produced using iron nanocatalysts in arc discharge thermal plasma and distributed on monolayer graphene for HRTEM imaging for mechanistic insights into CNT synthesis. Zigzag single‐wall or double‐wall CNTs were identified.
Hengfei Gu +5 more
wiley +1 more source
Comprehensive Modeling of Acetone Clusters: QTAIM Analysis and QCE Study
Journal of Computational Chemistry, Volume 47, Issue 11, 30 April 2026.A multiscale DFT‐QTAIM‐QCE approach links acetone cluster interactions to liquid‐phase behavior. Macroscopic thermodynamic and IR properties emerge from a dynamic equilibrium of small clusters. ABSTRACT In molecular research, comprehending the microscopic source of the macroscopic characteristics of polar aprotic solvents continues to be a significant ...
Juda Baikété +2 more
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Defined Microbiota Modulates Host Metabolome and Skeletal Adaptation to Diet‐Induced Obesity
The FASEB Journal, Volume 40, Issue 8, 30 April 2026.Germ‐free mice exposed to high‐fat diet accumulate circulating bone‐relevant metabolites but fail to undergo adaptive skeletal remodeling. In contrast, mice colonized with a defined Oligo‐MM12 microbiota display altered systemic metabolite profiles associated with appropriate trabecular and cortical bone adaptation.
Melanie Cristine Scalise +9 more
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NASA derived instrumentation hardware, application, and management for utilization in electric power ...
Warshawsky, I.
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Definition of ground test for verification of large space structure control [PDF]
Control theory and design, dynamic system modelling, and simulation of test scenarios are the main ideas discussed. The overall effort is the achievement at Marshall Space Flight Center of a successful ground test experiment of a large space structure. A
Banks, B. +5 more
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