Results 61 to 70 of about 14,893 (308)

Numerical Modeling and Simulation of a Spark-Ignition Engine Fueled with Ammonia-Hydrogen Blends

Energies, 2023
Carbon-free fuels, in particular ammonia and hydrogen, could play a significant role in the decarbonization of the mobility sector. In this work, the authors assessed the operation of a light-duty spark-ignition engine fueled with an ammonia–hydrogen ...
Gabriele D’Antuono, Davide Lanni, Enzo Galloni, Gustavo Fontana   +3 more
doaj   +1 more source

Evaluating the performance engineering process [PDF]

Proceedings of the 2nd international workshop on Software and performance, 2000
This contribution presents a model for process improvement in the area of performance engineering, which is called performance engineering maturity model. The use of this model allows the evaluation of the level of integration and application of performance engineering.
Andreas Schmietendorf, André Scholz, Claus Rautenstrauch   +2 more
openaire   +1 more source

Experimental studies of performance and emissions in a 2/4-stroke engine [PDF]

, 2014
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel UniversityDirect Injection (DI) gasoline engines are staging a come-back because of its potential for improved fuel economy through principally the engine down-sizing
Ojapah, Mohammed
core  

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

FEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson, Tomáš Gedeon, Mauricio Garcia Benitez, Campbell Putnam, William R. Harcombe, Radhakrishnan Mahadevan, Ashley E. Beck   +6 more
wiley   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

FEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

The Resurgence of Software Performance Engineering [PDF]

Proceedings of the 30th on Symposium on Parallelism in Algorithms and Architectures, 2018
Today, most application developers write code without much regard for how quickly it will run. Moreover, once the code is written, it is rare for it to be reengineered to run faster. But two technology trends of historic proportions are instigating a resurgence in software performance engineering, the art of making code run fast.
openaire   +1 more source

The Future of Software Performance Engineering [PDF]

Future of Software Engineering (FOSE '07), 2007
Performance is a pervasive quality of software systems; everything affects it, from the software itself to all underlying layers, such as operating system, middleware, hardware, communication networks, etc. Software Performance Engineering encompasses efforts to describe and improve performance, with two distinct approaches: an early-cycle predictive ...
C. Murray Woodside, Greg Franks, Dorina C. Petriu   +2 more
openaire   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

Modelling of a Spark Ignition Engine for Power-Heat Production Optimization Modèle de moteur à allumage commandé en vue de l’optimisation de la production chaleur-force

Oil & Gas Science and Technology, 2011
Spark ignition gas engine is more and more used in order to produce electricity and heat simultaneously. The engine crankshaft drives a synchronous electric generator.
Descieux D., Feidt M.
doaj   +1 more source

Mixed‐class J‐domain protein scaffolds promote expanded aggregate handling and multivalent Hsp70 engagement during functional disaggregase assembly

FEBS Letters, EarlyView.
Protein aggregates threaten proteostasis and cell health. In human cells, Hsp70–J‐domain protein‐based disaggregases remove aggregates, but how they assemble remains unclear. Our biochemical findings show that DNAJA2‐ and DNAJB1‐containing disaggregase scaffolds enhance luciferase aggregate targeting, and that Hsp70 recruitment by both J‐domain ...
Anna Szlachcic, Nadinath B. Nillegoda
wiley   +1 more source