Results 41 to 50 of about 3,337,720 (319)

Comparative Study on the Thermal-Aging Characteristics of Cellulose Insulation Polymer Immersed in New Three-Element Mixed Oil and Mineral Oil

open access: yesPolymers, 2019
Cellulose paper, whose main component is cellulose polymer, has been widely used in oil-immersed power transformer that gradually deteriorates during transformer operation.
Dawei Feng   +5 more
semanticscholar   +1 more source

Study on Pore Structure and Quantitative Parameters of the Paleocene-Cretaceous Sandstone Reservoir in Jiangling Depression by SEM and Mercury Injection Method

open access: yesYankuang ceshi, 2017
Evaluating reservoirs by pore structure has been widely used in oil and gas development, but this method has not yet been used in the evaluation of potassium salt reservoirs.
CAI Peng-rui   +7 more
doaj   +1 more source

The timing of the initial collision between the South and North China blocks constraining from the sediments in the eastern Sichuan Basin

open access: yesScientific Reports, 2023
In this study, detrital zircon U–Pb geochronology, trace element and Hf isotopic compositional data from the Early-Middle Triassic clastic rocks in the eastern Sichuan Basin were obtained to distinguish the sediment provenance and constrain the timing of
Tianjia Liu   +8 more
doaj   +1 more source

Analysis of the efficiency of wind turbine gearboxes using the temperature variable [PDF]

open access: yes, 2019
The aim of this paper is to evaluate how lubricant selection affects gearbox efficiency and overall energy production by analysing real data from wind farms, monitored and controlled by a Supervisory Control and Data Acquisition (SCADA system).
Galego, P.   +3 more
core   +1 more source

Comprehensive review on surfactant adsorption on mineral surfaces in chemical enhanced oil recovery.

open access: yesAdvances in Colloid and Interface Science, 2021
With the increasing demand for efficient extraction of residual oil, enhanced oil recovery (EOR) offers prospects for producing more reservoirs' original oil in place.
Zilong Liu   +4 more
semanticscholar   +1 more source

Multi‐omics and low‐input proteomics profiling reveals dynamic regulation driving pluripotency initiation in early mouse embryos

open access: yesFEBS Open Bio, EarlyView.
Mouse pre‐implantation development involves a transition from totipotency to pluripotency. Integrating transcriptomics, epigenetic profiling, low‐input proteomics and functional assays, we show that eight‐cell embryos retain residual totipotency features, whereas cytoskeletal remodeling regulated by the ubiquitin‐proteasome system drives progression ...
Wanqiong Li   +8 more
wiley   +1 more source

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Block Copolymers: Emerging Building Blocks for Additive Manufacturing

open access: yesAdvanced Functional Materials, EarlyView.
This review addresses how block copolymer (BCP) physics and rheology have led to the widespread use of BCPs in advanced additive manufacturing techniques, with particular emphasis on the untapped potential of these nanostructured materials toward achieving multi‐scale architected materials with unique, programmable material properties.
Alice S. Fergerson   +3 more
wiley   +1 more source

Cooling artifacts in ex-situ pore characterization of thermally stimulated low-maturity shale: an in-situ SEM imaging reassessment

open access: yesScientific Reports
The reliability of ex-situ methodologies in characterizing pore networks within thermally stimulated low-maturity oil shale remains debated due to potential cooling-induced artifacts.
Lijun Cheng   +8 more
doaj   +1 more source

Methodical aspects of PRMS-SPE application to the geologicaly-economical estimation of oil and gas supplies in Ukraine

open access: yesМінеральні ресурси України, 2018
In the article there are discribed history of becoming and detailed characteristic of PRMS-SPE, as one of the leading international systems of hydrocarbons supplies and resources evaluation.
H. I. Rudko, I. R. Mykhailiv
doaj   +1 more source

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