Results 171 to 180 of about 660,511 (329)

A smartphone-based vibration dataset for induction motor fault diagnosis under different speed and load conditions. [PDF]

Data Brief
Ertarğın M, Orhan A, Yıldırım Ö, Chauhan S, Vashishtha G.   +4 more
europepmc   +1 more source

Introduced dung beetles suppress methane emissions from cattle dung and alter the temporal dynamics of greenhouse gas flux Los escarabajos peloteros introducidos suprimen las emisiones de metano del estiércol de ganado y alteran la dinámica temporal del flujo de gases de efecto invernadero Besouros coprófagos introduzidos suprimem as emissões de metano do esterco bovino e alteram a dinâmica temporal do fluxo de gases de efeito estufa

Ecological Entomology, EarlyView.
Dung beetles suppressed cumulative methane flux from cattle dung by 85% and reduced total greenhouse gas emissions by 18%. Beetle activity accelerated initial CO2 release but did not alter total cumulative flux. N2O and NH3 fluxes were transient and not consistently driven by beetle presence.
Jean Holley, Martin Brummell, Nigel R. Andrew   +2 more
wiley   +1 more source

The Effect of Defect Size and Location in Roller Bearing Fault Detection: Experimental Insights for Vibration-Based Diagnosis. [PDF]

Sensors (Basel)
Wen H, Almutairi K, Sinha JK, Zhang L.
europepmc   +1 more source

Influence of Tapered‐End and Round‐End Bristle Designs on the Abrasive Enamel Wear Using Toothpastes With High Discrepancies in Abrasiveness

International Journal of Dental Hygiene, EarlyView.
ABSTRACT Purpose The aim of this in vitro study was to investigate the influence of bristle end design of toothbrushes and the relative enamel abrasivity (REA) of used toothpaste on the resulting abrasive enamel wear. Materials and Methods A total of 160 bovine enamel samples were allocated into eight groups (n = 20) and surface topography was recorded
Michelle S. Stübi, Moritz Tanner, Blend Hamza, Leonardo Svellenti, Thomas Attin, Florian J. Wegehaupt   +5 more
wiley   +1 more source

Research on load distribution optimization of main bearing of shield machine based on nonlinear spring contact force model

Jixie chuandong
ObjectiveThe main bearing of the shield machine bears complex concentrated loads (including huge axial force and overturning moment). To improve the finite element simulation efficiency of the slewing bearing and reduce its maximum contact load, a non ...
MA Caibing, CHEN Guanci
doaj  

Experimental and numerical analyses of the displacements and stiffnesses of a needle roller bearing under different conditions. [PDF]

Sci Rep
Li R, Wei W, Liu F, Liu H, Ye J, Lai Y, Li J, Cao T, Lu H, Li W.   +9 more
europepmc   +1 more source

Divergent exploratory‐avoidant behavioural strategies may drive niche differentiation in juvenile Antarctic fishes

Journal of Fish Biology, EarlyView.
Abstract We used an ecological niche theory framework integrating physiological and behavioural ecology to understand interspecific differentiation of juveniles of four Antarctic fishes: Trematomus bernacchii, Trematomus pennellii, Trematomus nicolai and Pagothenia borchgrevinki.
Amanda J. Frazier, Andrew W. Naslund, Milica Mandic, Kenneth W. Zillig, Bryant C. Siu, Anne E. Todgham   +5 more
wiley   +1 more source

Contact Load Measurement and Validation for Tapered Rollers in Wind Turbine Main Bearing. [PDF]

Sensors (Basel)
Guo Z, Yu J, Hao W, Niu Y.
europepmc   +1 more source

Thermogenesis‐derived spatiotemporal microclimates guide pollinator movement to ensure pollination

Journal of Integrative Plant Biology, EarlyView.
Alocasia odora's microclimatic heterogeneity guides Colocasiomyia fly movement within its inflorescence. During the female stage, midday heat in the upper spadix pushes flies down to the cooler female zone. During the male stage, nocturnal warmth in the upper part pulls flies upward and spathe constriction closes the lower female chamber.
Yuanjun Yu, Yan Luo, Wufan Zhang, Xiang Ding, Xiqiang Song, Yibo Luo   +5 more
wiley   +1 more source

Experimental study on the influence of lapping plate materials on the quality of both sides cylindrical rollers machining. [PDF]

Sci Rep
Zhao T, Ruan J, Feng K, Guo L, Chen H, Lyu B, Ding J, Jiang X.   +7 more
europepmc   +1 more source