Results 111 to 120 of about 162,105 (299)
Loss, persistence and reversal of phenotypic traits
ABSTRACT The irreversibility of complex trait loss has long been a tenet of evolutionary biology. However, this idea is increasingly at odds with the numerous documented exceptions across the Tree of Life. We synthesise this growing body of evidence across a diverse array of taxa and traits, exploring the evolutionary conditions that enable ...
Giobbe Forni +4 more
wiley +1 more source
LANDSAT 2 image studies as applied to a test area in northern Appennine Range [PDF]
There are no author-identified significant results in this ...
Marino, C. M., Zilioli, E.
core +1 more source
Key improvements obtained by incorporating nanoparticles into a lab‐scale SAGD process configuration. The bar plots show enhanced oil recovery, reduced viscosity, and increased asphaltene adsorption in nanoparticle‐assisted scenarios compared with conventional SAGD.
Luis Prada +6 more
wiley +1 more source
Nasa's Land Remote Sensing Plans for the 1980's [PDF]
Research since the launch of LANDSAT-1 has been primarily directed to the development of analysis techniques and to the conduct of applications studies designed to address resource information needs in the United States and in many other countries.
Butera, K. M., Higg, H. C., Settle, M.
core +1 more source
Clathrate hydrate crystallization
Abstract Clathrate hydrate crystallization has been an area of interest to chemical engineers from the point of view of crystal structure, thermophysical properties, phase equilibria, kinetics, industrial applications, and environmental (climate change) implications.
Peter Englezos
wiley +1 more source
High-altitude and long-runout geohazards encompass a range of surface processes involving single or cascading geological processes such as rockfalls, landslides, debris flows, and mudflows.
Yang GAO +3 more
doaj +1 more source
On the phenomena and geological teaching of the recent Great Flood in the Devon Valley [PDF]
The phenomena of the Flood in the Devon Valley of the 28th of August last year (1877) appear to me to be so pregnant with suggestions of geological import, that I have presumed to place a description of the flood before you, with some remarks on the relation of the flood phenomena to certain deposits in the Valley of the Devon.
openaire +2 more sources
A sustainable alternative to steam cracking, the molten‐salt‐mediated oxidative dehydrogenation (MM‐ODH) of ethane (C2H6) in Li2CO3‐Na2CO3‐K2CO3 (LNK) couples thermal cracking with melt‐mediated CO2 capture to realize commercially competitive C2H4 and CO yields. LNK composition strongly influences MM‐ODH process outcomes.
Kyle Vogt‐Lowell +6 more
wiley +1 more source
In this work, we propose an improved particle swarm optimization (PSO) algorithm and develop an improved PSO‐relevance vector machine (RVM) model as a substitute for traditional true‐triaxial testing. The model's high prediction accuracy was validated through comparisons with two other machine learning methods and five three‐dimensional Hoek–Brown type
Qi Zhang +4 more
wiley +1 more source
Evaporite karst geohazards in the Delaware Basin, Texas: review of traditional karst studies coupled with geophysical and remote sensing characterization [PDF]
Evaporite karst throughout the Gypsum Plain of west Texas is complex and extensive, including manifestations ranging from intrastratal brecciation and hypogene caves to epigene features and suffosion caves.
Brown, Wesley A. +4 more
core +1 more source

