Results 31 to 40 of about 2,000,562 (345)
Evidence that no liquid equilibrium process is involved in the comb building of honey bees (Apis Mellifera) [PDF]
, 2017 According to Pirk et al. (2004), honeybees first build free standing cylindrical cells which are then transformed to hexagonal cross-section by wax-flow in a kind of self-organization. We show that there is no self-organization of the wax.
Oeder, Robert, Schwabe, Dietrich
core +1 more source
Materials Research Express, 2022 Ultra high-strength M54 steel blocks were fabricated by laser metal deposition. The microstructure and mechanical behavior of the material were investigated systematically.
Zhong-Chao Zhao +7 more
doaj +1 more source
Applied Sciences, 2022 An analytical study is reported that highlights the physical aspects for a heated non-Newtonian Jeffrey liquid in a duct possessing sinusoidally moving ciliated walls.
Sohail Nadeem +4 more
doaj +1 more source
Plywood Cantilever Deflection: Experimental, Analytical and FEM Approach
Drvna Industrija, 2023 In this paper, the elastic behaviour in bending of three-layer plywood cantilever beams is analysed. Deflections of straight and half-circle cantilevers, loaded with a force at free end is determined experimentally and calculated using analytical and ...
Alma Žiga, Josip Kačmarčik
doaj +1 more source
Cross sectional imaging is transforming the diagnosis of rare congenital defects
European Heart Journal, 2021 Abstract Aim Partial anomalous pulmonary venous connection (PAPVC) is a rare congenital anomaly in which at least one of the pulmonary veins do not drain into the left atrium. Patients with PAPVC can often be asymptomatic and the presence of right heart dilatation on echo should prompt assessment of ...
E Orchard, F Njue, A Kelion
openaire +1 more source
Tau acetylation at K331 has limited impact on tau pathology in vivo
FEBS Letters, EarlyView.We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto +3 more
wiley +1 more source
Formation mechanism of defects in the wall of a petroleum casing steel pipe
工程科学学报, 2022 In this study, the defects in the wall of petroleum casing steel pipe were investigated. The morphology and composition of inclusions in the defects of the steel pipe were analyzed using scanning electron microscopy–energy-dispersive X-ray spectroscopy ...
Wen-kui YANG +5 more
doaj +1 more source
Scattering cross-section of a transformation optics-based metamaterial cloak
New Journal of Physics, 2010 We present experimental quantitative scattering cross-section (SCS) measurements for a metamaterial cloak. The cloak is nearly identical to that reported in 2006; however, quantitative experimental measurements have not yet been reported for such a structure.
Nathan Kundtz +2 more
openaire +1 more source
AAA+ protein unfoldases—the Moirai of the proteome
FEBS Letters, EarlyView.AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley +1 more source
Hard- and soft-fermion-pole contributions to single transverse-spin asymmetry for Drell-Yan process
, 2011 We study the single transverse-spin asymmetry for the Drell-Yan lepton pair production based on the twist-3 mechanism in the collinear factorization. We calculate all the hard-pole (HP) and the soft-fermion-pole (SFP) contributions to the single-spin ...
Kanazawa, Koichi, Koike, Yuji
core +1 more source