Results 111 to 120 of about 493,078 (308)

A perspective from the Mesozoic: Evolutionary changes of the mammalian skull and their influence on feeding efficiency and high‐frequency hearing

open access: yesThe Anatomical Record, EarlyView.
Abstract The complex evolutionary history behind modern mammalian chewing performance and hearing function is a result of several changes in the entire skeletomuscular system of the skull and lower jaw. Lately, exciting multifunctional 3D analytical methods and kinematic simulations of feeding functions in both modern and fossil mammals and their ...
Julia A. Schultz
wiley   +1 more source

Features unique geological structure Illinetskyi meteorite crater and its industrial development [PDF]

open access: yes, 2017
Наведені особливості тектонічної та геологічної будови основних структур Іллінецького кратеру по результатам геолого-геофізичних даних та технологія промислового видобутку корисних копалин. Розглянута актуальність видобутку корисних копалин в наш
Dovhaliuk, I.   +4 more
core  

Functional models from limited data: A parametric and multimodal approach to anatomy and 3D kinematics of feeding in basking sharks (Cetorhinus maximus)

open access: yesThe Anatomical Record, EarlyView.
Abstract Basking sharks, Cetorhinus maximus (Gunnerus, Brugden [Squalus maximus], Det Kongelige Norske Videnskabers Selskabs Skrifter, 1765, vol. 3, pp. 33–49), feed by gaping their mouths and gill slits, greatly reorienting their cranial skeletons to filter food from water.
Tairan Li   +12 more
wiley   +1 more source

Local ground parameters of blasting vibration models for different geological structures at Mae Moh lignite mine, Thailand [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2014
This study was carried out at Mae Moh lignite mine, Lampang Province, Thailand. Vibration data were recorded in different directions: SE-pit to Huai King Village, SE-pit to Hang Hung Village, SE-pit to PR building and C-pit to SE-pit. More than hundred
Vishnu Rachpech   +3 more
doaj  

Use of the lost seismic infor-mation about upper part of geological structure for the not prospecting purposes [PDF]

open access: yes, 2015
Показаны результаты переобработки потерянной в процессе поисков углеводородов сейсмической информации для картирования скоростной характеристики (скорости продольных волн) верхней части геологического разреза для сокращения дорогостоящих инженерно ...
Tyapkin, O. K.   +3 more
core  

A contribution to the anatomy of two rare cetacean species: The hourglass dolphin (Cephalorhynchus cruciger) and the spectacled porpoise (Phocoena dioptrica)

open access: yesThe Anatomical Record, EarlyView.
Abstract The anatomical description of the hourglass dolphin (Cephalorhynchus cruciger) and the spectacled porpoise (Phocoena dioptrica) remains largely unexplored, due to limited specimen availability and preservation challenges. This study employed digital imaging techniques, conventional histology, and computed tomography to provide visualization of
Jean‐Marie Graïc   +26 more
wiley   +1 more source

Geological structure and oil and gas potential of Domanik deposits in the central part of the Volga-Ural oil and gas basin

open access: yesGeoresursy
The paper describes the structure and depositional conditions of a domanicoid high-carbon formation (HCF) in the central part of the Volga-Ural oil and gas basin.
M. Yu. Karpushin   +5 more
doaj   +1 more source

Geological indicators for impact: The anomalous case of the Vredefort structure, South Africa [PDF]

open access: yes
The Vredefort Dome is located within and almost central to the Witwatersrand basin in its presently known extent. It exposes a central Archean granite core which is surrounded by a collar of supracrustal rocks.
Antoine, L. A. G., Reimold, W. U.
core   +1 more source

The revision of baphetids from the Middle Pennsylvanian of the Czech Republic: Morphology, ontogeny, palaeoecology, and the reassessment of the phylogeny of Baphetoidea

open access: yesThe Anatomical Record, EarlyView.
Abstract The baphetoids represent a clade of the Carboniferous stem‐tetrapods (Middle Mississippian—Middle Pennsylvanian) with a characteristic extension of the orbits into antorbital vacuities, which formed keyhole‐shaped openings on the skull. The more derived baphetids were crocodile‐like piscivores frequently occurring in coal‐bearing lacustrine ...
Pavel Barták, Martin Ivanov, Boris Ekrt
wiley   +1 more source

DEEP GROUND PENETRATING RADAR IMAGING FOR THE PURPOSE OF EXPLORING ORE AND GEOLOGICAL STRUCTURES IN THE CALAMINE MINE, CENTRAL IRAN

open access: yesRudarsko-geološko-naftni Zbornik
This study aimed to identify mineralized zones within a sedimentary structure, including its discontinuities such as layer boundaries, and faults. The Loza-N model Deep Ground Penetrating Radar (DGPR) system with a 25 MHz antenna was employed to achieve ...
Nasrin Sadrmohammadi   +3 more
doaj   +1 more source

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