Results 41 to 50 of about 4,167,463 (302)

Numerical Investigation of Compression and Expansion Process of Twin-Screw Machine Using R-134a

Energies, 2023
Increasing the efficiency of twin-screw machines is beneficial for gas compression and expansion applications. We used a computation fluid dynamic approach to obtain the flow field and efficiency of a twin-screw machine that used R-134a as the working ...
Chia-Cheng Tsao, Wen-Kai Lin, Kai-Yuan Lai, Savas Yavuzkurt, Yao-Hsien Liu   +4 more
doaj   +1 more source

Liver organoids: modelling complexity in homeostasis and disease

FEBS Letters, EarlyView.
Studying liver in vitro has been challenging because simple 2D cell cultures fail to capture liver's cellular and architectural complexity. To bridge this gap, scientists increasingly use organoids, 3D liver models which better mimic liver composition and function. This review examines recent advances in liver organoid complexity and realism, discusses
Anna M. Dowbaj, Meritxell Huch
wiley   +1 more source

Adaptive compression algorithm based on JPEG2000 with neural network corrector of decoded image definition

Компьютерная оптика
The article describes features of digital image processing in the process of adaptive compression based on the discrete wavelet transform (DWT) used in the JPEG2000 compression standard. Unlike the well-known compression algorithm, the new algorithm uses
S.V. Sai, V.S. Nikonov, E.S. Fomina
doaj   +1 more source

Integrated visual security management for optimal condition explorations in resource-constrained systems

EURASIP Journal on Image and Video Processing, 2019
As more and more mobile video applications contain important and private video data, various video encryption techniques have been proposed to protect them.
Junhyung Moon, Heemin Park, Kyoungwoo Lee   +2 more
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

FEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source

Invisible but not inaccessible—Revealing transient oligomers formed by intrinsically disordered proteins with solution NMR and complementary methods

FEBS Letters, EarlyView.
Transient oligomers formed by intrinsically disordered proteins may be ‘invisible’ to direct detection yet remain accessible to solution NMR through equilibrium‐exchange measurements and pressure‐jump experiments. Complementary methods report on mass, stoichiometry, selected distance distributions, morphology, and internal packing.
Martin D. Gelenter, Ad Bax
wiley   +1 more source

Energy-Aware Frame Rate Selection for Video Coding

IEEE Access
The demand for high-quality, immersive video experiences has necessitated adopting higher frame rates for more realistic scene portrayal. However, there is a growing demand for energy-saving video applications, where temporal downsampling is a crucial ...
Geetha Ramasubbu, Andre Kaup, Christian Herglotz   +2 more
doaj   +1 more source

Unlocking the potential of cell‐permeable nanobodies for intracellular applications

FEBS Letters, EarlyView.
This review outlines current strategies for delivery of nanobodies into cells and highlights recent examples of functional applications. By addressing and manipulating intracellular targets, these molecules hold great potential for treating cancer, respiratory diseases and neurological disorders, making this a vibrant area of research in the biomedical
Mariona Gené‐Verdés, Luise Franz, Christian P.R. Hackenberger   +2 more
wiley   +1 more source

Low Complexity Learning-Based QTMTT Partitioning Scheme for Inter Coding in VVC Encoder

IEEE Access
The Versatile Video Coding (VVC) standard, finalized in 2020 by the Joint Video Experts Team (JVET) and the Video Coding Experts Group (VCEG), marks a major advancement in video compression technology, offering a 50% efficiency improvement over its ...
Ibrahim Taabane, Daniel Menard, Anass Mansouri, Selima Sahraoui, Ali Ahaitouf   +4 more
doaj   +1 more source

Performance of Curzon-Ahlborn engine along with its engine speed and compression ratio

Journal of Thermal Science and Technology, 2019
We evaluated the ideal limits of performance (power and efficiency) of heat engines operated with external heat sources along with their engine speed and compression ratio, using the method of adjoint equations based on variational principle. It is known
Shinji KOJIMA
doaj   +1 more source