Results 91 to 100 of about 186,581 (309)

A method for automatic identification of signatures of steganography software [PDF]

open access: yes, 2010
A fully automated, blind, media-type agnostic approach to steganalysis is presented here. Steganography may sometimes be exposed by detecting automatically characterized regularities in output media caused by weak implementations of steganography ...
Graeme Bell   +4 more
core   +2 more sources

[18F]Fluorodeprenyl‐D2 PET as a Tool to Monitor Disease Activity in GAD65‐Ab Autoimmune Encephalitis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To evaluate [18F]fluorodeprenyl‐D2 ([18F]F‐DED) positron‐emission tomography (PET) imaging as a biomarker of disease activity in autoimmune encephalitis (AIE) associated with glutamic acid decarboxylase 65 (GAD65) antibodies. Methods [18F]F‐DED PET was performed in 25 GAD65‐AIE patients and 8 controls using dynamic (0–60 min) and ...
Julia S. Dorneich   +19 more
wiley   +1 more source

High‐Resolution MRI Revealed Different Etiology‐Specific Associations With Cerebral Infarction in Adult Moyamoya Vasculopathy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective High‐resolution MRI enables detailed assessment of intracranial vessel wall pathology in moyamoya vasculopathy. We aimed to classify adult moyamoya vasculopathy etiologies using high‐resolution MRI and to examine subtype‐specific associations between high‐resolution MRI features and ischemic infarction.
Guangsong Han   +8 more
wiley   +1 more source

Data-only contention-based grant-free multiple access for 5G mMTC

open access: yesDianxin kexue, 2019
For contention-based grant-free access, reference signal collision would restrict the performance. A data-only contention-based grant-free scheme was considered, where the blind detection receiver does not depend on reference signal to detect users ...
Shizhuang ZHANG, Zhifeng YUAN, Weimin LI
doaj  

Illumination by short-wavelength light inside the blind spot decreases light detectability

open access: yesiScience
Summary: Although the optic disk corresponding to the blind spot contains no classical photoreceptors, it contains photopigment melanopsin. To clarify whether melanopsin is involved in light detection, we conducted detection tasks for light stimuli ...
Marina Saito   +2 more
doaj   +1 more source

Constant modulus algorithm aided soft decision directed scheme for blind space-time equalisation of SIMO channels [PDF]

open access: yes, 2007
This paper investigates a blind space–time equaliser (STE) designed for single-input multiple-output (SIMO) systems that employ high-throughput quadrature amplitude modulation schemes. A constant modulus algorithm (CMA) aided soft decision-directed (SDD)
Wolfgang, A., Hanzo, L., Chen, S.
core  

Blind Chip-Rate Equalisation for DS-CDMA Downlink Receiver [PDF]

open access: yes, 2003
A dispersive channel in the DS-CDMA downlink destroys the orthogonality of the synchronous users' spreading sequences. In this paper, we aim to re-establish this orthogonality blindly by means of a common chip-level equaliser. The adaptation algorithm is
S. Weiss   +11 more
core   +1 more source

Choroid Plexus Enlargement and USPIO‐Based Inflammatory Feature in Cerebral Small Vessel Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The choroid plexus (CP) is a key component of the blood–cerebrospinal fluid barrier (BCSFB), but its mechanism of action in cerebral small vessel disease (CSVD) remains unclear. This study investigated CP volume (CPV) alterations and their association with conventional imaging markers in CSVD and explored the underlying role of ...
Yongqiang Qu   +11 more
wiley   +1 more source

A Lightweight Blind Obstacle Detection Network for Mobile Side [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
China has the longest and widest distribution of blind corridors in the world, but in many cities they are virtually non-existent, with all kinds of obstacles affecting the movement of the blind. Thus, guaranteeing safe traveling for the blind has become
J. Zhao, Z. Liu, Z. Liu, A. Xu, J. Zhao
doaj   +1 more source

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