Results 21 to 30 of about 94,002 (257)
Alternative fuels and ecological aspects of motor vehicle engines
Vojnotehnički Glasnik, 1997 In the last two decades the world has faced two serious problems: the sources of liquid fuels are limited and the number of their users has intensified the problem of their toxicity. The researchers in this field face on extremely complex task: to find a
Slobodan Milidrag +4 more
doaj +1 more source
Integrated Onboard Carbon Dioxide Capture and Liquefaction System for Dual-Fuel Marine Engines
Journal of Marine Science and EngineeringOnboard carbon capture and storage (OCCS) is promising, but downstream CO2 conditioning and liquefaction dominate energy and operability constraints. An integrated OCCS onboard for CO2 conditioning, deep cooling, phase separation and liquid CO2 (LCO2 ...
Thi Thu Ha To +3 more
doaj +1 more source
Impact of Alternative Paraffinic Fuels on the Durability of a Modern Common Rail Injection System
Energies, 2020 Common rail (CR) diesel fuel injection systems are very sensitive to variations in fuel properties, thus the impact of alternative fuels on the durability of the injection system should be investigated when considering the use of alternative fuels.
Carmen Mata +5 more
doaj +1 more source
FEBS Letters, EarlyView.How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley +1 more source
CFD Simulation of Pre-Chamber Spark-Ignition Engines—A Perspective Review
EnergiesThe growing demand to reduce emissions of pollutants and CO2 from internal combustion engines has led to a critical need for the development of ultra-lean burn engines that can maintain combustion stability while mitigating the risk of knock.
Soo-Jin Jeong
doaj +1 more source
Biotechnology for Biofuels and Bioproducts, 2023 Alternative aviation fuel has been confirmed benefits for GHGs reduction and energy saving. Alternative fuel use should meet drop-in fuel requirement, and one of the important factors to ensure combustion completeness is to achieve spray requirement in ...
Ziyu Liu, Zimu Tang, Xiaoyi Yang
doaj +1 more source
Artificial molecular machines and motors—Design and control of nanoscale motion
FEBS Letters, EarlyView.Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley +1 more source
Metastatic niche shaped by host factors influences disseminated cancer cell fate
FEBS Letters, EarlyView.Metastasis is shaped not only by cancer cells but also by the environments they encounter. This review explores how factors such as aging, diet, the microbiome, lifestyle, and environmental exposures remodel organ‐specific niches in the lung, liver, bone, and brain, influencing where metastatic cells survive, remain dormant, or grow, and ultimately ...
Gwennan Delyth Ward +2 more
wiley +1 more source
EnergiesThis study develops and validates a three-dimensional CFD model for a 12 L large-bore active-type pre-chamber spark-ignition (PCSI) engine fueled by natural gas.
Soo-Jin Jeong +2 more
doaj +1 more source
Membrane composition and thermodynamic identity as boundaries of life for synthetic cell research
FEBS Letters, EarlyView.What makes a cell a cell? The boundary of a living cell is not just a wall. Read as a Markov blanket, the membrane separates internal from external states, generating identity and non‐equilibrium order. Can this identity be rebuilt from scratch in a synthetic cell?
Caterina Presutti, Bert Poolman
wiley +1 more source