Results 51 to 60 of about 75,979 (308)

New Material of Thylacocephala from the Early Ladinian (Middle Triassic) of Northern Grigna (Lecco, Lombardy, Northern Italy)

open access: yesDiversity
Here we report and describe a new assemblage of Thylacocephala (Crustacea) from the Early Ladinian Buchenstein Fm. (Middle Triassic) of Grigna, Northern Italy.
Cheng Ji, Andrea Tintori
doaj   +1 more source

Loss of Carotenoid Plumage Coloration Is Associated With Loss of Choice for Coloration in Domestic Canaries

open access: yesFrontiers in Ecology and Evolution, 2019
Understanding the evolution of mating display traits and preferences for them is a major aim of behavioral and evolutionary ecology. However, isolating the specific traits used as mate choice criteria and the possible genetic underpinnings of both trait ...
Rebecca E. Koch   +2 more
doaj   +1 more source

Manisa Yazma Eser Kütüphanesi’ndeki Erken Osmanlı Dönemine Ait Cilt Örnekleri

open access: yesİstem, 2021
İslâm sanatı gelişen fetihlerle birlikte geniş bir coğrafyada kıymetli sanat eserleri ortaya çı-kartmış, zarafet ve ihtişam bakımından birçok milleti kendisine hayran bırakmıştır.
Yasin Çakmak
doaj   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth   +6 more
wiley   +1 more source

A Machine Learning Approach to Discover Rules for Expressive Performance Actions in Jazz Guitar Music

open access: yesFrontiers in Psychology, 2016
Expert musicians introduce expression in their performances by manipulating sound properties such as timing, energy, pitch, and timbre. Here, we present a data driven computational approach to induce expressive performance rule models for note duration ...
Sergio Ivan Giraldo, Rafael Ramirez
doaj   +1 more source

Vahid Paşa Yazma Eser Kütüphanesi’ndeki Fatih Devri Ciltleri

open access: yesMarifetname, 2021
İslâmiyet’in tarih sahnesine çıkması ve akabinde yaşanan fetihler neticesinde İslâm sanatına yeni bezeme unsurları girmiştir. Kâğıdın icadından sonra kitap üretimi çoğalmış ve tarih boyunca da farklı teknik ve usullerle tezyin edilmiştir. Türklerin İslâm
Yasin Çakmak
doaj   +1 more source

Hyperbolization of Euclidean Ornaments [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2009
In this article we outline a method that automatically transforms an Euclidean ornament into a hyperbolic one. The necessary steps are pattern recognition, symmetry detection, extraction of a Euclidean fundamental region, conformal deformation to a hyperbolic fundamental region and tessellation of the hyperbolic plane with this patch.
Martin von Gagern   +1 more
openaire   +2 more sources

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb   +6 more
wiley   +1 more source

A benign juvenile environment reduces the strength of antagonistic pleiotropy and genetic variation in the rate of senescence [PDF]

open access: yes, 2015
The environment can play an important role in the evolution of senescence because the optimal allocation between somatic maintenance and reproduction depends on external factors influencing life expectancy.
Gonzalez G.   +3 more
core   +2 more sources

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