Results 71 to 80 of about 26,826 (296)

Sedimentary Environment Reconstruction and Organic Matter Enrichment Mechanisms in Various Lithofacies of the Lacustrine Shale: A Case Study of the Da’anzhai Member, Central Sichuan Basin, China

open access: yesApplied Sciences
Jurassic lacustrine shale in the Sichuan Basin is a focal exploration area in China, while the pronounced heterogeneity presents challenges, necessitating detailed research as a prerequisite.
Yuting Peng   +3 more
doaj   +1 more source

Sedimentary environment and depositional evolution of the Mesoproterozoic Bingmagou Formation on the southern margin of the North China Craton

open access: yesScientific Reports, 2018
The Precambrian sedimentary strata on the southern margin of the North China Craton are well developed and widely exposed, making the region ideal for the study of depositional processes. However, because of the length of the depositional history and the
Liang Yue, ZiLiang Liu, Yongsheng Ma
doaj   +1 more source

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak   +3 more
wiley   +1 more source

Depositional architecture and petroleum potential of the Cambro-Ordovician Hawaz Formation, Murzuq Basin, SW Libya. [PDF]

open access: yes, 2006
The Murzuq Basin, SW Libya, contains a sedimentary fill up to 4000 m thick, comprising a marine Palaeozoic section and a continental Mesozoic section. The primary reservoir target in the basin is the Upper Ordovician Mamuniyat Formation, but where this ...
Alkhalas, Tarek Jiuma
core  

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

open access: yesAdvanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara   +8 more
wiley   +1 more source

Geochemical and micropaleontological evidence of recent hydrological changes in sedimentary records of Jiquilisco Bay, El Salvador

open access: yesCiencias Marinas, 2015
The geochemical, mineralogical, and micropaleontological (Foraminifera, Ostracoda, Bacillariophyta) spatial and temporal variations in marshland sediments from the Jiquilisco Bay Biosphere Reserve, El Salvador, are described.
Oscar Armando Amaya-Monterrosa   +10 more
doaj   +1 more source

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

open access: yesAdvanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir   +5 more
wiley   +1 more source

Some aspects of the sedimentology of the superficial deposits of the Eden estuary, Fife

open access: yes, 2012
Little attention has previously boon given to the sediments of the Eden estuary, Fife, Scotland. This research was performed in order to identify, delineate and account for the observed sedimentary facies in the superficial sediments of
Eastwood, Keith Melvyn
core  

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

open access: yesAdvanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar   +7 more
wiley   +1 more source

Bahía de Cartagena (Colombia): distribución de sedimentos superficiales y ambientes sedimentarios

open access: yesLatin American Journal of Aquatic Research, 2013
Se analizó la distribución espacial y las principales características texturales de 234 muestras de sedimentos superficiales de la bahía de Cartagena.
Juan C Restrepo   +5 more
doaj  

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