Results 11 to 20 of about 33,483 (309)

Analysis of HMCVT Shift Quality Based on the Engagement Characteristics of Wet Clutch

open access: yesAgriculture, 2022
A wet clutch is the key shift part of the hydro-mechanical continuously variable transmission (HMCVT), and the working characteristics have an important influence on the shift quality of HMCVT.
Kai Lu, Zhixiong Lu
doaj   +1 more source

Egg clutch dehydration induces early hatching in red-eyed treefrogs, Agalychnis callidryas [PDF]

open access: yes, 2017
Terrestrial eggs have evolved repeatedly in tropical anurans exposing embryos to the new threat of dehydration. Red-eyed treefrogs, Agalychnis callidryas, lay eggs on plants over water.
Salica, María José   +2 more
core   +3 more sources

Fueling Incubation: Differential Use of Body Stores in Arctic and Temperate-breeding Barnacle Geese (Branta leucopsis) [PDF]

open access: yes, 2010
We compared the use of body stores in breeding Barnacle Geese (Branta leucopsis) in traditional Arctic colonies in the Barents Sea with that in recently established temperate-zone breeding colonies in the Baltic Sea and North Sea by studying female body ...
Drent, R.H.   +3 more
core   +5 more sources

Threat-sensitive anti-predator defence in precocial wader, the northern lapwing Vanellus vanellus [PDF]

open access: yes, 2016
Birds exhibit various forms of anti-predator behaviours to avoid reproductive failure, with mobbing—observation, approach and usually harassment of a predator—being one of the most commonly observed. Here, we investigate patterns of temporal variation in
A Amar   +97 more
core   +1 more source

Nesting behaviour influences species-specific gas exchange across avian eggshells [PDF]

open access: yes, 2014
Carefully controlled gas exchange across the eggshell is essential for the development of the avian embryo. Water vapour conductance (GH2O) across the shell, typically measured as mass loss during incubation, has been demonstrated to optimally ensure the
Adelaide   +9 more
core   +4 more sources

Manipulating Frictional Performance of Wet Clutch Engagement through Material Properties and Operating Conditions

open access: yesLubricants, 2022
Wet clutch engagement is mainly influenced by the frictional behaviors between the friction pad and steel plate as well as the lubrication behaviors.
Siyoul Jang
doaj   +1 more source

Eleutherodactylus zygodactylus [PDF]

open access: yes, 1993
Number of Pages: 2Integrative BiologyGeological ...
Ardila-Robayo, Maria Cristina   +1 more
core   +1 more source

The black soldier fly, Hermetia illucens (Diptera: Stratiomyidae): Trapping and culturing of wild colonies in Ghana [PDF]

open access: yes, 2019
The larvae of the black soldier fly (BSF), Hermetia illucens L. (Diptera: Stratiomyidae), are promising candidates to be utilized in alternative organic waste management and for fish and livestock feed production.
Agyakwah, S.K.   +7 more
core   +1 more source

IMMACULATE CONCEPTION, INCUBATION PROTOCOLS, AND EGG CHARACTERISTICS OF THE GANGES SOFTSHELL TURTLE (ASPIDERETES GANGETICUS) [PDF]

open access: yes, 2006
Reproductive biology of Aspideretes gangeticus was studied between 1986 and 2001. Clutchsize averaged 17.9 eggs and ranged between six to thirty-fi ve eggs. Egg length averaged 30.6 mm,egg width averaged 30.22 mm, and egg weight averaged 16.85 g.
Whitaker, Nikhil
core   +2 more sources

Considering adaptation and the ‘function’ of traits in the classroom, using wiki tools [PDF]

open access: yes, 2010
The conceptual understanding of the process of adaptation (whereby a population becomes better suited to its environment over evolutionary time) is acknowledged to be a difficult one.
A Ruth   +56 more
core   +3 more sources

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