Results 191 to 200 of about 1,700,794 (328)

Environmental Contaminant Accumulation in Freshwater Turtles Inhabiting Three Rivers of the Permian Basin, New Mexico, USA

Environmental Toxicology, EarlyView.
ABSTRACT Freshwater turtles are valuable sentinels of aquatic systems due to their long lifespans and resilience in environments impacted by contaminants. The Permian Basin, dominated by the oil and gas sector, spans western Texas and southeastern New Mexico, USA, including the Pecos River and its tributaries, the Delaware and Black Rivers.
Ana G. G. Sapp, W. Gregory Cope, Christopher E. Moorman, Frank X. Weber, Ivana Mali   +4 more
wiley   +1 more source

Transition in Residues: On Depleted Oil Wells, Radioactive Geophysics, and the Origins of the Twentieth Century's Energy Mix. [PDF]

Ber Wiss
Bron M.
europepmc   +1 more source

Gas check prevention during calendering of poly(vinyl chloride) films using poly(caprolactone)‐based additives

Journal of Vinyl and Additive Technology, Volume 31, Issue 2, Page 441-452, March 2025.
Three poly(caprolactone) (PCL)‐based additives of differing molecular weights were used as a secondary plasticizer to prevent gas checks in PVC films produced through calendering. Results showed that chemical and physicochemical properties influence the prevention or reduction of gas checks, unlike rheological properties including complex viscosity and
Luis F. Alvarez, Kushal Panchal, Richard L. Leask, Milan Maric, Jim A. Nicell   +4 more
wiley   +1 more source

Extended State Observer-Based Chattering Free Terminal Sliding-Mode Control of Hydraulic Manipulators. [PDF]

Sensors (Basel)
Gao H, Ma J, Liu Y, Xue G.
europepmc   +1 more source

Empirical Physics‐Based Normal Behavior Modeling of Drive Train Temperatures With High‐Resolution Wind Turbine Operating Data

Wind Energy, EarlyView.
ABSTRACT The installed wind energy capacity increases every year. However, operation and maintenance costs still make up a considerable portion of the levelized costs of electricity. This costs can be greatly reduced by the application of suitable early fault detection methods. The supervisory control and data acquisition system of wind turbines is one
Timo Lichtenstein, Victor von Maltzahn, Karoline Pelka   +2 more
wiley   +1 more source

The influence of kinematic viscosity of oils on the energy consumption of a gear pump used for pumping oil in machines and vehicles. [PDF]

PLoS One
Warguła Ł, Gierz Ł, Zharkevich O, Wieczorek B, Wojciechowski Ł, Perz K, Berg A, Berg A, Zhunuspekov D, Altynbaev A, Kaczmarzyk P, Dziechciarz A.   +11 more
europepmc   +1 more source

Rb4CuSb2X12 (X = Cl, Br) as Novel Vacancy‐Ordered Quadruple Perovskites

Zeitschrift für anorganische und allgemeine Chemie, EarlyView.
The vacancy‐ordered quadruple perovskites Rb4CuSb2X12 (X = Cl, Br) were crystallized from hydrohalic acid. Their crystal structures can be interpreted as new distortion variants of the perovskite structure with ordered vacancies. The electronic structure of Rb4CuSb2Br12 shows that the Br and Sb states form the valence band and the upper conduction band.
Mirko Bravic, Markus Otteny, Kevin Eble, Julian Gebhardt, Christian Elsässer, Michael Daub   +5 more
wiley   +1 more source

Surface Topography of Hardened Stainless Steel in Dry Finish Turning Using CBN and Cemented Carbide Inserts. [PDF]

Materials (Basel)
Leksycki K, Feldshtein E, Pawłowski J.
europepmc   +1 more source

Investigating Breathing Dynamics of a 110 kV Oil‐Immersed Transformer Using Thermal‐Fluid‐Structure Interaction Modelling

High Voltage, EarlyView.
ABSTRACT The breathing system of an oil‐immersed transformer is of vital importance for maintaining equilibrium between internal and external pressures, with any malfunction potentially disrupting the transformer's stable operation. This study develops a thermal–fluid–structure interaction (TFSI) model to simulate the breathing phenomenon in a 110 kV ...
Lujia Wang, Guangyi Chen, Dong Shang, Xiang Zhang, Haitao Yang, Jianwen Zhang   +5 more
wiley   +1 more source

Short-term interactions between Longmaxi shale and carbon dioxide-based fracturing fluids. [PDF]

Heliyon
Liu G, Shang D, Zhang L, Xie S, Pan W.
europepmc   +1 more source