Results 71 to 80 of about 4,167,463 (302)

Compression-Encrypted Meta-Optics for Storage Efficiency and Security Enhancement

Information security is of vital importance in daily life, stimulating various cryptographic strategies to protect data from leaking. Among them, metasurface-based optical encryption is an excellent candidate because of its unique features, including ...
Zejing Wang (11249588), Wenjia Zhao (4898182), Yangyang Shi (11134373), Xin Shan (1450093), Shuai Wan (5884451), Zhongyang Li (1234344), Mengyu Niu (9400131), Zhuowen Wang (6094883)   +7 more
core   +1 more source

Hardware architecture for lossless image compression based on context-based modeling and arithmetic coding [PDF]

, 2007
In this paper we present a novel hardware architecture for context-based statistical lossless image compression, as part of a dynamically reconfigurable architecture for universal lossless compression.
Vitulli, Raffaele, Canagarajah, CN, Chen, X, Nunez-Yanez, JL, Jose L. Nunez-Yanez, Raffaele Vitulli, Nishan Canagarajah, Xiaolin Chen   +7 more
core   +1 more source

In silico and in vitro exploration of a tyrosinase for biocatalytic production of catechols

FEBS Open Bio, EarlyView.
Tyrosinase from Ralstonia pseudosolanacearum is a promising biocatalyst for producing valuable catechols from monophenol substrates. This tyrosinase is uniquely suited to this due to its high monophenolase : diphenolase ratio. We combined in silico docking and in vivo kinetic characterisation of this tyrosinase with 11 industrially relevant monophenols,
James Britton, Fang Zhao, Reeta Davis, Meg Walsh, Kevin E O'Connor, David O'Connell, Tanja Narancic   +6 more
wiley   +1 more source

Efficient Lightweight Supercapacitor with Compression Stability [PDF]

Advanced Functional Materials, 2016
This paper reports the fabrication of an electrochemical supercapacitor (ES) with high gravimetric and areal capacitances, achieved at a high mass ratio of active material to current collector. The active material, polypyrrole, is in situ polymerized in an aerogel‐based current collector composed of crosslinked cellulose nanocrystals (CNCs) and ...
Shi, Kaiyuan, Yang, Xuan, Cranston, Emily, Zhitomirsky, Igor   +3 more
openaire   +2 more sources

The effect of compression on natural graphite anode performance and matrix conductivity [PDF]

, 2004
Anodes for lithium-ion cells were constructed from three types of natural graphite, two coated spherical and one flaky. Anode samples were compressed from 0 to 300 kg/cm2 and studied in half-cells to study the relations between anode density, SEI ...
Sierra, A., Wang, C.-W., A.M Sastry, K.A Striebel, Sastry, A.M., C.-W Wang, Shim, J., A Sierra, Striebel, K.A., J Shim   +9 more
core   +1 more source

Adenosine triphosphate as a modulator of protein interactions and stability

FEBS Open Bio, EarlyView.
ATP is best known as the cell's energy currency, but it also shapes how proteins fold, interact, aggregate and form biomolecular condensates. This review explains the emerging physical principles behind these effects, including weak binding to charged protein regions, magnesium‐dependent behaviour and concentration‐dependent control of protein ...
Shuyuan Tan, Robin Curtis
wiley   +1 more source

Heterotropic regulation and negative homotropic cooperativity

FEBS Open Bio, EarlyView.
We identified a structural module common to some proteins that couple negative cooperativity with heterotropic regulation, two features that rarely coexist. These proteins are ring‐like and present an ordered asymmetry whereby noncontacting subunits are symmetric, and their tertiary structure differs from that of contacting subunits.
Veronica Morea, Francesco Angelucci, Federica Arnesano, Gianmarco Pascarella, Patrizio Di Micco, Andrea Bellelli   +5 more
wiley   +1 more source

Image compression with anisotropic diffusion [PDF]

, 2008
Compression is an important field of digital image processing where well-engineered methods with high performance exist. Partial differential equations (PDEs), however, have not much been explored in this context so far. In our paper we introduce a novel
Welk, Martin, Seidel, Hans-Peter, Seidel, Hans Peter, Joachim Weickert, Weickert, Joachim, Irena Galić, Hans-Peter Seidel, Belyaev, A., Galic, I., Andrés Bruhn, Bruhn, Andrés, Belyaev, Alexander, Alexander Belyaev, Bruhn, A., Seidel, H. ; https://orcid.org/, Martin Welk, Welk, M., Weickert, J., Galić, Irena   +18 more
core   +1 more source

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

FEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey, Miriam Livier Llamas‐García, Gabriela M. Montero‐Morán, Leticia Santos, Samuel Lara‐González   +4 more
wiley   +1 more source

Lossless Compression Schemes for ECG Signals Using Neural Network Predictors

EURASIP Journal on Advances in Signal Processing, 2007
This paper presents lossless compression schemes for ECG signals based on neural network predictors and entropy encoders. Decorrelation is achieved by nonlinear prediction in the first stage and encoding of the residues is done by using lossless entropy ...
C. Eswaran, R. Kannan
doaj   +2 more sources