Results 71 to 80 of about 385,698 (291)
Advanced Engineering Materials, EarlyView.The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi +3 more
wiley +1 more source
THE AUDIT OF EU NON-REIMBURSABLE FUNDS [PDF]
Analele Universităţii Constantin Brâncuşi din Târgu Jiu : Seria Economie, 2019 External public audit of non-reimbursable EU funds involves the application of those specific audit procedures to obtain adequate and sufficient audit evidence regarding the legality and regularity of transactions, the completeness and accuracy of the ...
OCOLIȘANU ANDREEA
doaj
Meiotic irregularities in Alstroemeria andina var. Venustula (Alstroemeriaceae) [PDF]
, 2007 Alstroemeria andina Phil. var. venustula (Phil.) M. Muñoz (sub nom. A. andina Phil. subsp. venustula (Phil.) Ehr. Bayer) is a perennial, small herb, 5-16 cm tall, that occurs mainly at 2,800-3,700 meters above sea level, in populations of limited ...
Sanso, Andrea Mariel +1 more
core
An analysis of the timing irregularities for 366 pulsars
, 2009 We provide an analysis of timing irregularities observed for 366 pulsars. Observations were obtained using the 76-m Lovell radio telescope at the Jodrell Bank Observatory over the past 36 years.
A. G. Lyne +49 more
core +1 more source
Harnessing Fungal Biowelding for Constructing Mycelium‐Engineered Materials
Advanced Engineering Materials, EarlyView.Mycelium‐bound composites (MBCs) offer low‐carbon alternatives for construction, yet interfacial bonding remains a critical challenge. This review examines fungal biowelding as a biocompatible adhesive, elucidating mycelium‐mediated interfacial mechanisms and their role in material assembly. Strategies to optimize biowelding are discussed, highlighting
Xue Brenda Bai +2 more
wiley +1 more source
Enhanced Sporadic E Layer and Its Perturbations During the 2022 Hunga Volcanic Eruption
Space WeatherSporadic E (Es) layers are plasma irregularities significantly affecting radio communication and navigation systems. And, their dominant formation mechanism at mid‐latitudes, known as the wind shear theory, suggests that they serve as indicators of the ...
Lihui Qiu +3 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley +1 more source
To what degree does a high-energy aurora destroy F-region irregularities?
Frontiers in Astronomy and Space SciencesUsing two separate databases of in situ ionospheric observations, we present case studies and perform a statistical investigation of the link between energetic precipitating particles during the polar night and high-latitude F-region steepening density ...
Magnus F. Ivarsen +8 more
doaj +1 more source
Variational electric fields at low latitudes and their relation to spread F and plasma irregularities [PDF]
Recordings from OGO 6 show that electric field irregularities are frequently present between + or - 35 deg geomagnetic latitude in the 2000 - 0600 local time sector.
Heppner, J. P. +2 more
core +1 more source
Mesospheric scatter and its microstructure [PDF]
, 1983 The difference in character between mesospheric returns from about 70 and about 80 km was noted. The 69-km echo is characterized by a single return with about .1 Hz width, while the 82.5 km return extends over more than 3 Hz bandwidth; this difference is
Bowhill, S. A., Gibbs, K. P.
core +1 more source