Results 41 to 50 of about 13,506 (143)

Through-the-Wall SAR Auto-Focusing With Low Accuracy Positioning System

open access: yesIEEE Access
This paper analyzes a through-the-wall synthetic aperture radar (SAR) imaging system designed for indoor use with imprecise positioning systems. Due to uncertainties in transceiver positions at scanning timestamps and the defocusing effects caused by ...
Adrian Focsa   +3 more
doaj   +1 more source

Non-Stationary Platform Inverse Synthetic Aperture Radar Maneuvering Target Imaging Based on Phase Retrieval

open access: yesSensors, 2018
As a powerful signal processing tool for imaging moving targets, placing radar on a non-stationary platform (such as an aerostat) is a future direction of Inverse Synthetic Aperture Radar (ISAR) systems. However, more phase errors are introduced into the
Hongyin Shi   +4 more
doaj   +1 more source

Reusing Test-Cases on Different Levels of Abstraction in a Model Based Development Tool

open access: yes, 2012
Seamless model based development aims to use models during all phases of the development process of a system. During the development process in a component-based approach, components of a system are described at qualitatively differing abstraction levels:
Alexander K. Petrenko   +4 more
core   +1 more source

Coordinated oscillations in cortical actin and Ca2+ correlate with cycles of vesicle secretion. [PDF]

open access: yes, 2012
The actin cortex both facilitates and hinders the exocytosis of secretory granules. How cells consolidate these two opposing roles was not well understood. Here we show that antigen activation of mast cells induces oscillations in Ca(2+) and PtdIns(4,5)P(
Meyer, T, Wollman, R
core   +1 more source

Isolation Defines Identity: Functional Consequences of Extracellular Vesicle Purification Strategies

open access: yesAdvanced Healthcare Materials, EarlyView.
Four extracellular vesicle purification strategies are compared using ovarian‐cancer ascites and ES‐2 cell supernatants. A novel workflow links purification to function by combining particle‐normalized proteomics with matched cell‐free and cell‐based assays.
Christian Preußer   +10 more
wiley   +1 more source

A Modified Iteration-Free SPGA Based on Removing the Linear Phase

open access: yesRemote Sensing, 2023
In traditional Stripmap SAR imaging, the platform motion error will bring the phase error in the azimuthal direction to the image, which will have a series of effects on the imaging quality.
Yi Xie   +3 more
doaj   +1 more source

An Open‐Source Pipeline for Calcium Imaging and All‐Optical Physiology in Human Stem Cell‐Derived Neurons

open access: yesAdvanced Science, EarlyView.
This work introduces an open‐source all‐optical platform for functional phenotyping of human stem cell‐derived neurons. The system integrates optogenetics, calcium imaging, automated acquisition, and analysis to resolve single‐cell and network activity, enabling longitudinal measurements, disease modeling, and pharmacological screening in preclinical ...
Wardiya Afshar‐Saber   +12 more
wiley   +1 more source

Compressed Sensing Imaging with Compensation of Motion Errors for MIMO Radar

open access: yesRemote Sensing, 2021
Using a multiple-input-multiple-output (MIMO) radar for environment sensing is gaining more attention in unmanned ground vehicles (UGV). During the movement of the UGV, the position of MIMO array compared to the ideal imaging position will inevitably ...
Haoran Li   +4 more
doaj   +1 more source

Car accidents and credit hire agreements [PDF]

open access: yes, 2012
A motorist whose car is damaged by the negligence of another may recover for the loss suffered, but must take reasonable steps to mitigate that loss.
Rawlings, Philip, Wilson, Joanna
core  

Assessing Mesoscale Heterogeneities in Hard Carbon Electrodes Through Deep Learning‐Assisted FIB‐SEM Characterization, Manufacturing and Electrochemical Modeling

open access: yesAdvanced Energy Materials, EarlyView.
A combination of discrete and finite element method models for the current collector deformation and electrochemical performance analysis, respectively. The models are calibrated and validated with electrochemical and imaging data of hard carbon electrodes. These electrodes were manufactured with different parameters (slurry solid contents of 35 and 40
Soorya Saravanan   +12 more
wiley   +1 more source

Home - About - Disclaimer - Privacy