Results 31 to 40 of about 703,349 (355)
Correlation of Gas Quality with Hydrodynamic Parameters in Transmission Networks [PDF]
MATEC Web of Conferences, 2019 Natural gases are a mixture of hydrocarbons. Their composition determines the basic variables that need to be taken into account in the calculation of transport or gathering systems.
Eparu Cristian Nicolae +2 more
doaj +1 more source
Bottom hole pressure estimation using hybridization neural networks and grey wolves optimization
Petroleum, 2018 An effective design and optimum production strategies of a well depend on the accurate prediction of its bottom hole pressure (BHP) which may be calculated or determined by several methods.
Menad Nait Amar +2 more
doaj +1 more source
Chemosensory sensitivity reflects reproductive status in the ant Harpegnathos saltator. [PDF]
, 2017 Insects communicate with pheromones using sensitive antennal sensilla. Although trace amounts of pheromones can be detected by many insects, context-dependent increased costs of high sensitivity might lead to plasticity in sensillum responsiveness.
Berger, Shelley L +6 more
core +2 more sources
Hydrogen–Natural Gas Mix—A Viable Perspective for Environment and Society
Energies, 2023 The increase in demand, and thus the need to lower its price, has kept C-based fuels as the main source. In this context, the use of oil and gas has led to increased climate change, resulting in greenhouse gases. The high percentage of eissions, over 40%,
Adrian Neacsa +6 more
doaj +1 more source
Petroleum hydrocarbons in fresh waters: a preliminary desk study and bibliography [PDF]
, 1980 A literature survey was carried out into the effects of petroleum hydrocarbons in freshwater, from the toxicity, biodegradability and concentration aspects.
Horne, J.E.M. +3 more
core
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 +3 more
wiley +1 more source
Антибиотики и Химиотерапия, 2020 Results of the microbiological bench testing of antibacterial and antimycotic activity of the carbon sorbents modified with lactic acid oligomers are presented.
L. G. P'yanova +5 more
doaj
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
Advances in Mechanical EngineeringAs unmanned aerial vehicle (UAV) technology has evolved, these systems are being increasingly utilized across diverse industries. However, controlling UAVs faces significant problems owing to several environmental circumstances and obstacles, making path
Dradoum Alaa +2 more
doaj +1 more source