Results 21 to 30 of about 3,644,723 (252)

Evaluating U-Space for UAM in Dense Controlled Airspace

open access: yesDrones, 2023
The operation of unmanned aircraft systems in shared airspace can serve as an accelerator for the global economy and a sensitive addition to the existing mix of transportation modes.
Michal Černý   +4 more
doaj   +1 more source

Switched Fractional Order Multiagent Systems Containment Control with Event-Triggered Mechanism and Input Quantization

open access: yesFractal and Fractional, 2022
This paper studies the containment control problem for a class of fractional order nonlinear multiagent systems in the presence of arbitrary switchings, unmeasured states, and quantized input signals by a hysteresis quantizer.
Jiaxin Yuan, Tao Chen
doaj   +1 more source

Peripheral lysosomes recruit PLEKHG3 to focal adhesions and restrain protrusion dynamics

open access: yesFEBS Letters, EarlyView.
Proximity‐dependent labeling at the LAMTOR complex revealed the Rho GEF PLEKHG3 as a lysosome‐proximal protein directing the study toward the influence of lysosome positioning on actin dynamics and cell motility. We show that PLEKHG3 colocalizes with lysosomes at focal adhesion sites and observe that forced peripheral dispersion of lysosomes hinders ...
Rainer Ettelt   +8 more
wiley   +1 more source

Application of operating systems for the combined development of ground vehicles and drones for cargo delivery based on artificial intelligence [PDF]

open access: yesE3S Web of Conferences
The relevance of this study is determined by the need to improve the efficiency of international cargo delivery and the intellectualization of service markets.
Ivasyk Halyna   +5 more
doaj   +1 more source

A Real-Time Flight Safety Alarm System for Multiple UAVs [PDF]

open access: yesMATEC Web of Conferences, 2019
Airborne heterogeneous UAVs can encounter flight control or sensor failures while performing flight tasks. To protect against this, safety alarm systems (SAS) are typically implemented in ground control systems (GCS) to prevent crashes or other failures.
San Khin Thida, Chang Yoon Seok
doaj   +1 more source

Liver organoids: modelling complexity in homeostasis and disease

open access: yesFEBS Letters, EarlyView.
Studying liver in vitro has been challenging because simple 2D cell cultures fail to capture liver's cellular and architectural complexity. To bridge this gap, scientists increasingly use organoids, 3D liver models which better mimic liver composition and function. This review examines recent advances in liver organoid complexity and realism, discusses
Anna M. Dowbaj, Meritxell Huch
wiley   +1 more source

Research on the Coupling Relationship Between Regional Green Transport Efficiency and High-Quality Economic Development

open access: yesSystems
This study employs panel data from 11 provinces and municipalities along the Yangtze River Economic Belt spanning 2010–2021. It measures green transport efficiency (GTE) using principal component analysis (PCA) and the undesirable Super-SBM model while ...
Qing Du   +4 more
doaj   +1 more source

The classification of the single traveling wave solutions to (1+1) $(1+1)$ dimensional Gardner equation with variable coefficients

open access: yesAdvances in Difference Equations, 2019
In this paper the classification of single traveling wave solutions of (1+1) $(1+1)$ dimensional Gardner equation with variable coefficients is obtained by applying the complete discrimination system to the polynomial and trial equation methods.
Damin Cao, Lijuan Du
doaj   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

open access: yesFEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell   +2 more
wiley   +1 more source

The state-of-the-art in air transportation demand and systems analysis : a report on the proceedings of a workshop sponsored by the Civil Aeronautics Board, Department of Transportation, and National Aeronautics and Space Administration (June 1975) [PDF]

open access: yes, 1975
August 1975Introduction and summary: Forecasting air transportation demand has indeed become a complex and risky business in recent years, especially in view of unpredictable fuel prices, high inflation rates, a declining rate of aggregate population ...
Taneja, Nawal K.   +2 more
core  

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