Results 81 to 90 of about 4,232,997 (293)

Theoretical models of helicopter rotor noise [PDF]

For low speed rotors, it is shown that unsteady load models are only partially successful in predicting experimental levels. A theoretical model is presented which leads to the concept of unsteady thickness noise.
Hawkings, D. L.
core   +1 more source

Theoretical parameters of trailing vortices versus aspect ratio of wing models [PDF]

, 2019
We perform 2D-PIV measurements to characterize trailing vortices in NACA0012 wing models for aspect ratios ranging between 1 and 2.5, and for chord-based Reynolds numbers from 7000 to 40000.
Aguilar Cabello, Jorge, Del-Pino-Peñas, Carlos Manuel, Jiménez-Rodríguez, Alberto, Parras-Anguita, Luis   +3 more
core  

Optical linear polarization in ultra cool dwarfs: A tool to probe dust in the ultra cool dwarf atmospheres

, 2009
Aims.Recent studies have detected linear polarization in L dwarfs in the optical I band. Theoretical models have been developed to explain this polarization. These models predict higher polarization at shorter wavelengths.
Ackerman, Allard, Bailer-Jones, Basri, Berger, Burrows, Burrows, Burrows, Chabrier, Chandrasekhar, Chiu, Cooper, Cruz, E. L. Martín, Goldman, Golimowski, H. Bouy, Helling, Helling, Kirkpatrick, Knapp, M. R. Zapatero Osorio, Marley, Ménard, N. Phan-Bao, Patten, R. Tata, Reid, Reiners, S. Sengupta, Schmidt, Sengupta, Sengupta, Sengupta, Tsuji, Tsuji, Tsuji, Woitke, Woitke, Zapatero Osorio   +39 more
core   +1 more source

Systemic dysregulation of apolipoproteins in amyotrophic lateral sclerosis serum

FEBS Open Bio, EarlyView.
Amyotrophic lateral sclerosis (ALS) is a fatal disease that damages motor neurons. This study found that people with ALS show significant changes in blood fats and the proteins that carry them. Several apolipoproteins were higher, lipid balances were altered, and normal protein–lipid relationships were disrupted.
Finula I. Isik, Russell Pickford, Hannah C. Timmins, Olivier Piguet, Glenda M. Halliday, Matthew C. Kiernan, Woojin Scott Kim   +6 more
wiley   +1 more source

Models, theoretical design and formal evaluation of integrated specialist community health service provision for the first 2000 days: a scoping review. [PDF]

BMJ Open, 2023
Nelson HJ, Angus B, Munns A, Ong S, Burns S.   +4 more
europepmc   +1 more source

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

FEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young, Omar Arias‐Gaguancela, Fiona Gibson, Morgan Grainger, Jodie Score, Amit Nathubhai, Mauricio Cafiero, Lee Richard Machado   +7 more
wiley   +1 more source

Identification of models, theoretical design and formal evaluation of integrated specialist community health service provision for the first 2000 days: a protocol for a scoping review. [PDF]

BMJ Open, 2022
Nelson HJ, Munns A, Ong S, Watson L, Burns S.   +4 more
europepmc   +1 more source

Simple theoretical models for composite rotor blades [PDF]

The development of theoretical rotor blade structural models for designs based upon composite construction is discussed. Care was exercised to include a member of nonclassical effects that previous experience indicated would be potentially important to ...
Rehfield, L. W., Valisetty, R. R.
core   +1 more source

Continuous-Time Random Walks at All Times

, 2009
Continuous-time random walks (CTRW) play important role in understanding of a wide range of phenomena. However, most theoretical studies of these models concentrate only on stationary-state dynamics.
Anatoly B. Kolomeisky, Hughes B. D., Weiss G. H.   +2 more
core   +1 more source

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

FEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata, Yoichi Sakai, Keisuke Tanaka, Etsuro Yoshimura, Ken Kitano, Morio Ishikawa, Tadahiro Nakamoto, Tsutomu Takayama, Hirofumi Inoue, Kaho Nomura, Tomonori Suzuki, Masataka Uchino, Akira Abe, Youichi Niimura   +13 more
wiley   +1 more source