Results 71 to 80 of about 7,659,823 (254)

An ontological morphological phylogenetic framework for living and extinct ray‐finned fishes (Actinopterygii)

The Anatomical Record, EarlyView.
Abstract The ray‐finned fishes include one out of every two species of living vertebrates on Earth and have an abundant fossil record stretching 380 million years into the past. The division of systematic knowledge of ray‐finned fishes between paleontologists working on extinct animals and neontologists studying extant species has obscured the ...
Jack Stack
wiley   +1 more source

Testing and selection techniques of horizontal wells in Weirong Shale Gas Field

Youqicang pingjia yu kaifa, 2021
The successful development experience at home and abroad shows that fracturing is an important step to realize shale gas development, and testing selection is the most critical step in the preliminary work of fracturing.
Wang Haoyu, Xiong Liang, Shi Hongliang, Dong Xiaoxia, Wei Limin, Jian Wanhong   +5 more
doaj  

An unusual titanosaur axis from the Upper Cretaceous of Brazil and its significance for sauropod anatomy and systematics

The Anatomical Record, EarlyView.
Abstract The Upper Cretaceous São José do Rio Preto Formation (Bauru Group, southeastern Brazil) has yielded a fragmentary but taxonomically diverse record of titanosaur sauropods, although elements from cervical series remain scarce. Here, we describe a nearly complete sauropod axis from the Vila Ventura Paleontological Area, representing an uncommon ...
Bruno A. Navarro, Jeffrey A. Wilson Mantilla, Jhonata H. A. Martins, Fabiano V. Iori, Leonardo S. Paschoa, Alberto B. Carvalho, Joseli M. Piranha, Hussam Zaher   +7 more
wiley   +1 more source

A new species of Lonchidiidae (Hybodontiformes) from the Late Jurassic of Brazil (Aliança Formation, Jatobá Basin)

The Anatomical Record, EarlyView.
Abstract The Aliança Formation (Jatobá Basin) represents lacustrine deposits formed in oxygenated waters that hosted a diverse fauna, including Hybodontiform sharks. Within this group, the Family Lonchidiidae comprises 11 valid genera, with Parvodus previously reported in Brazilian deposits from the Brejo Santo Formation (Araripe Basin, Late Jurassic ...
Larissa de Souza Ribeiro, Marco Aurélio Gallo de França   +1 more
wiley   +1 more source

Optimization of Volumetric Fracturing Stages and Clusters in Continental Shale Oil Reservoirs Based on Geology-Engineering Integration

Energies
The exploration and development of shale oil offers significant potential as an alternative to address oil and gas supply. The complex geological conditions characterized by inter-lithology and strong heterogeneity pose substantial challenges in ...
Jiangang Cao, Meng Cai, Jinbo Li, Zheng Guo, Xuepeng Jiang, Guohao Dong   +5 more
doaj   +1 more source

On philosophy and innovative thinking of oil & gas exploration and development: Commemoration of the first oil well on land in China, Well-Yan1

Youqicang pingjia yu kaifa, 2022
Oil & gas exploration and development is a combination of innovative thinking and practice. Firstly, a geologist should have the concept of oil and gas in his mind.
HE Faqi, XU Bingwei, SHAO Longkan
doaj  

Journal of Management & Engineering Integration, v.12 no.2 (Winter)

, 2019
Published in SOAR: Shocker Open Access Repository by Wichita State University Libraries Technical Services, November 2022.Evaluating the impact of student constructed four-bar mechanisms on achieving learning objectives in an Industrial Mechanisms course
Association for Industry, Engineering and Management Systems (AIEMS)
core   +1 more source

Contributions to Geology, 1932 [PDF]

, 1929
The "Contributions to Geology," issued by the Bureau of Economic Geology of The University of Texas, include shorter papers of which in addition to other Bureau publications, usually, one volume per year is published, the present volume ...
University of Texas at Austin. Bureau of Economic Geology
core   +1 more source

MicroCT reinvestigation of the only articulated fossil anostomid fish reveals synonymy of Arhinolemur Ameghino, 1898 and Megaleporinus Ramirez et al., 2017

The Anatomical Record, EarlyView.
Abstract Arhinolemur scalabrinii† Ameghino, 1898 was originally described as a strepsirrhine primate (Mammalia) but has been recognized as an anostomid fish since 2012. It remains the only extinct anostomid species known from complete cranial material.
Karen M. Panzeri, Humberto L. Andrelino, Sergio Bogan, José P. O'Gorman, Federico Agnolín, Brian L. Sidlauskas, Nahuel Vega, Agustín G. Martinelli, José L. Birindelli   +8 more
wiley   +1 more source

Optimization of deep shale gas well spacing based on geology-engineering integration: A case study of Weirong Shale Gas Field

Youqicang pingjia yu kaifa, 2021
The design of shale gas well spacing is the key to the technical policy of gas field development, which is related to the maximum utilization of resources.
ZHAO Yong, LI Nanying, YANG Jian, CHENG Shisheng   +3 more
doaj