Results 11 to 20 of about 112,863 (268)

Gas Losses in the Distribution Networks: An Interdisciplinary Analysis

Energies, 2022
This work focuses on a very important and current problem in the gas field: gas losses in natural gas distribution networks and their impact on the environment, as well as on the company operating the network.
Cristian Nicolae Eparu, Adrian Neacsa, Doru Bogdan Stoica   +2 more
doaj   +1 more source

New model for standpipe pressure prediction while drilling using Group Method of Data Handling

Petroleum, 2022
The continuous evaluation of the measured Stand Pipe Pressure (SPP) against a modeled SPP value in real-time involves the automatic detection of undesirable drilling events such as drill string washouts and mud pump failures.
Mohamed Riad Youcefi, Ahmed Hadjadj, Farouk Said Boukredera   +2 more
doaj   +1 more source

Energy management strategies in the oil industry for chemical and thermal environment pollution reduction

MATEC Web of Conferences, 2017
This paper depicts certain thermodynamic processes possibly involved in the oil industry specific activities operation and/or proper equipment maintenance.
Avram Lazăr, Cristescu Tudora, Stoica Monica Emanuela   +2 more
doaj   +1 more source

Defect Chemistry and Chemical Looping Performance of La_1−xM_xMnO₃ (M = Sr, Ca, (x = 0–0.5)) Perovskites

Nanomaterials, 2022
La1−xMxMnO3 (M = Sr, Ca, (x = 0–0.5)) materials of the perovskite structure are synthesized by a co-precipitation method. They are subsequently investigated for their performance in a chemical looping process (fuel CH4) using thermogravimetric analysis ...
Antigoni Evdou, Theofilos Georgitsis, Charitini Matsouka, Eleni Pachatouridou, Eleni Iliopoulou, Vassilios Zaspalis   +5 more
doaj   +1 more source

Application of hybrid support vector regression artificial bee colony for prediction of MMP in CO2-EOR process

Petroleum, 2020
Minimum miscibility pressure (MMP) is a key parameter in the successful design of miscible gases injection such as CO2 flooding for enhanced oil recovery process (EOR).
Menad Nait Amar, Noureddine Zeraibi
doaj   +1 more source

Thermal and Rheological Analysis of Elliptical Ducts and Non-Newtonian Nanofluids in Heat Exchanger Applications [PDF]

Journal of Heat and Mass Transfer Research
This study numerically investigates the thermal and rheological performance of a double-pipe heat exchanger (DPHE) with an inner elliptical duct (with an aspect ratio of 0.25) using non-Newtonian nanofluids comprising multi-walled carbon nanotubes ...
Dounya Behnous, Haroun Ragueb, Belkacem Manser, Antar Tahiri, Kacem Mansouri   +4 more
doaj   +1 more source

Stick-Slip Vibration Suppression in Drill String Using Observer-Based LQG Controller

Sensors, 2022
Hydrocarbon exploration and production activities are guaranteed through various operations including the drilling process, which is realized by using rotary drilling systems. The process involves crushing the rock by rotating the drill bit along a drill
Rami Riane, Mohamed Zinelabidine Doghmane, Madjid Kidouche, Kong Fah Tee, Sofiane Djezzar   +4 more
doaj   +1 more source

A Bibliometric Analysis of Publications in Uremic Toxins From 1991 to 2024

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Uremic toxins are a growing area of research in nephrology, with significant implications in the progression and treatment of chronic kidney disease (CKD) and the management of end‐stage kidney disease (ESKD). This bibliometric analysis aims to evaluate the global research trends, key contributors, and the impact of publications in ...
Yuh‐Shan Ho, Karim M. Soliman, Wisit Cheungpasitporn, Wannasit Wathanavasin, Ahmed Daoud, Ahmed I. Kamal, Balázs Szamosfalvi, Tibor Fülöp   +7 more
wiley   +1 more source

Software for CO₂ Storage in Natural Gas Reservoirs

Energies
The paper presents a simulation-based approach for optimizing CO2 injection into depleted gas reservoirs, with the goal of enhancing underground CO2 storage.
Cristian Nicolae Eparu, Silvian Suditu, Rami Doukeh, Doru Bogdan Stoica, Iuliana Veronica Ghețiu, Alina Prundurel, Ioana Gabriela Stan, Liviu Dumitrache   +7 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source