Results 41 to 50 of about 1,365 (214)

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Fusion of SoOp, photogrammetry and 3D map for indoor positioning system on smart devices

Alexandria Engineering Journal
The growing demand for Indoor Location-Based Services (ILBS) highlights the need for accurate and infrastructure-free Indoor Positioning Systems (IPS), as traditional Global Navigation Satellite Systems (GNSS) usually lack accessibility indoors.
Yuan Yang, Charles Toth
doaj   +1 more source

Nanomaterial-Assisted Signal Enhancement of Hybridization for DNA Biosensors: A Review

Sensors, 2009
Detection of DNA sequences has received broad attention due to its potential applications in a variety of fields. As sensitivity of DNA biosensors is determined by signal variation of hybridization events, the signal enhancement is of great significance ...
Minqiang Li, Tao Luo, Fanli Meng, Meiyun Zhang, Xing Chen, Jinyun Liu, Liangbao Yang, Jinhuai Liu   +7 more
doaj   +1 more source

Comprehensive Data Analysis Approach for Appropriate Scheduling of Signal Timing Plans

Future Transportation, 2022
Improperly scheduled signal timing plans are one of the main reasons for reduced efficiency of traffic signals at coordinated urban arterials. Recently, most urban arterial roads are equipped with intelligent transportation systems devices capable of ...
Nemanja Dobrota, Nikola Mitrovic, Slavica Gavric, Aleksandar Stevanovic   +3 more
doaj   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

FEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan, Mathew Stanley, Olawale Raimi, Andrew T. Ferenbach, Helge C Dorfmueller, Daan M. F. van Aalten   +5 more
wiley   +1 more source

A research on low-earth-orbit signal-of-opportunity interference suppression algorithm based on adaptive signal iterative subspace projection technique

Frontiers in Physics
Signal-of-Opportunity (SOP) positioning based on Low-Earth-Orbit (LEO) constellations has gradually become a research hotspot. LEO satellite SOP positioning possess strong anti-jamming capabilities due to their large quantity, wide spectral coverage, and
Lihao Yao, Lihao Yao, Bin Fan, Honglei Qin, Deyong Xian, Boyun Gu, Hai Sha, Gangqiang Guan, Zhijun Liu, Donghan He, Liwei Zhang   +10 more
doaj   +1 more source

Quad channel software defined receiver for passive radar application

Archives of Electrical Engineering, 2017
In recent times the growing utilization of the electromagnetic environment brings the passive radar researches more and more to the fore. For the utilization of the wide range of illuminators of opportunity the application of wideband radio receivers is ...
Pető Tamás, Seller Rudolf
doaj   +1 more source

A simple crowdsourced delay-based traffic signal control.

PLoS ONE, 2020
Current transportation management systems rely on physical sensors that use traffic volume and queue-lengths. These physical sensors incur significant capital and maintenance costs.
Vinayak Dixit, Divya Jayakumar Nair, Sai Chand, Michael W Levin   +3 more
doaj   +1 more source

Signals of Opportunity: Using Signal Defined Radio to Identify Potential Candidate

Repüléstudományi Közlemények, 2019
This paper deals with the prospect of using cellular network signals as one of the candidates from the signals of opportunity as a supplementary or alternative source for navigation and positioning via onboard software defined radio. A low-cost system for modelling GSM coverage over a particular area is proposed.  
Košuda, Marek, Szabo, Stanislav
openaire   +3 more sources

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source