Results 51 to 60 of about 2,511,720 (249)

Image compression and encryption based on wavelet transform and chaos [PDF]

open access: yesКомпьютерная оптика, 2019
With the rapid development of network technology, more and more digital images are transmitted on the network, and gradually become one important means for people to access the information.
Haibo Gao , Wenjuan Zeng
doaj   +1 more source

Septin 9 PB domains coordinate centrosome positioning and microtubule acetylation to control epithelial polarity

open access: yesFEBS Letters, EarlyView.
Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai   +4 more
wiley   +1 more source

A Review on Image Steganography Techniques: Evolution from Classical to Adaptive Methods

open access: yesSignals
Image steganography is an information-hiding technique, aiming to achieve confidentiality and data privacy while transmitting the data in a digital environment.
Shikha Chaudhary   +4 more
doaj   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

open access: yesFEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto   +3 more
wiley   +1 more source

Time-varying channel estimation for LTE uplink SC-FDMA system with multi-user

open access: yesTongxin xuebao, 2014
A novel transform-domain based time-varying channel estimation method is proposed for the long term evolu-tion (LTE) uplink single carrier-frequency division multiple access (SC-FDMA) systems with multi-user.In the transform domain,the channel parameters
Li-hua YANG   +2 more
doaj   +2 more sources

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

Measurement of antennas and microwave components using time-domain reflectometry of a voltage impulse [PDF]

open access: yes, 2011
Band-pass microwave systems such as ultra-wideband antennas are traditionally characterized in the frequency-domain through a vector network analyzer in an anechoic chamber.
Jonathan Scott   +3 more
core   +1 more source

CDTrans: Cross-domain Transformer for Unsupervised Domain Adaptation

open access: yesCoRR, 2021
Unsupervised domain adaptation (UDA) aims to transfer knowledge learned from a labeled source domain to a different unlabeled target domain. Most existing UDA methods focus on learning domain-invariant feature representation, either from the domain level or category level, using convolution neural networks (CNNs)-based frameworks.
Tongkun Xu   +5 more
openaire   +4 more sources

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

open access: yesFEBS 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

Video Enhancement from Multiple Compressed Copies in Transform Domain

open access: yesEURASIP Journal on Image and Video Processing, 2010
Increasingly, we can obtain more than one compressed copy of the same video content with different levels of visual quality over the Internet. As the original source video is not always available, how to choose or derive a video of the best quality from
Chen Zhenzhong   +2 more
doaj   +2 more sources

Home - About - Disclaimer - Privacy