Results 81 to 90 of about 50,546 (263)

Directional Control of a Platoon of Vehicles for Comfort Specification by Considering Parasitic Time Delays and Lags

Promet (Zagreb), 2013
The problem of controlling a string of vehicles moving in one dimension is considered so that they all follow a lead vehicle with a constant spacing between successive vehicles.
Ali Ghasemi
doaj   +1 more source

Closed‐Loop Solid‐State Synthesis Planning for Materials Discovery With Large Language Models

Advanced Materials, EarlyView.
Leveraging literature data, we build a large‐language‐model‐driven workflow that extracts synthesis steps from 4407 papers, retrieves similar precedents, and generates candidate solid‐state synthesis recipes. The system benchmarks against ground‐truth and then operates in a closed loop with experiments to synthesize oxy‐selenide electrolyte materials ...
Dong Won Jeon, Dong Hwi Kim, Taeyang Jeon, Joo Yeong Na, Heegyu Kim, Hyunsouk Cho, Dae Soo Jung, Ju Li, Jin‐Sung Park, Sung Beom Cho   +9 more
wiley   +1 more source

String Stability of Vehicle Platoons Under Oscillatory Perturbations in Car-Following Models

IEEE Open Journal of Vehicular Technology
Platooning is a key enabling technology for connected and automated vehicles, but its effectiveness depends critically on string stability, i.e., the ability to prevent disturbance amplification along the vehicle string.
Oumaima Barhoumi, Ghazal Farhani, Taufiq Rahman, Mohamed H. Zaki, Sofiene Tahar   +4 more
doaj   +1 more source

STABILITY OF AdS BLACK STRINGS [PDF]

International Journal of Modern Physics A, 2009
We review the recent developements in the stability problem and phase diagram for asymptotically locally AdS black strings. First, we quickly review the case of locally flat black string before turning to the case of locally AdS spacetimes.
openaire   +4 more sources

Dynamic Mechanical Loading Modulates Extracellular Vesicle Production and Cargo in Meniscus Fibrochondrocytes

Advanced Materials Interfaces, EarlyView.
Dynamic mechanical loading of outer meniscus fibrochondrocytes increases extracellular vesicle (EV) yield and alters EV composition. When applied to progenitor cells, these mechanically primed EVs modulate the expression of matrix‐related genes.
Catherine Cheung, Zizhao Li, Sung‐Han Jo, Se‐Hwan Lee, Il Keun Kwon, Jina Ko, Su Chin Heo   +6 more
wiley   +1 more source

A Robust String-Stable Spacing Policy for ACC-Based Vehicle Platoons Using Adaptive Super-Twisting Sliding Mode Control

IEEE Access
Ensuring string stability in adaptive cruise control (ACC) systems is essential to prevent disturbance amplification in vehicle platoons. Conventional speed-dependent spacing policies, such as the constant time-gap (CTG) policy, are widely adopted to ...
Kbrom Lbsu Gdey, Woo Young Choi
doaj   +1 more source

Distributed MPC of vehicle platoons with guaranteed consensus and string stability. [PDF]

Sci Rep, 2023
Feng Y, Yu S, Chen H, Li Y, Shi S, Yu J, Chen H.   +6 more
europepmc   +1 more source

Stability of sigma-model strings and textures [PDF]

Classical and Quantum Gravity, 2002
In flat space-time, sigma-model strings and textures are both unstable to collapse and subsequent decay. With sufficient cosmological expansion, however, they are stable in a generalized sense: a small perturbation will cause them to change their shape, but they do not decay.
openaire   +2 more sources

Patterned Screen‐Printing Process for Substrate‐Free and Scalable Hyaluronic Acid Microneedle Arrays

Advanced Materials Technologies, EarlyView.
A substrate‐free microneedle array comprising a hybrid hyaluronic acid ink was fabricated via a scalable screen‐printing process for flexible transdermal drug delivery. Defect‐free mold filling was achieved using a vacuum‐assisted jig and a delayed drying system, and the use of this versatile platform for multi‐drug patterning and ex vivo skin ...
Sanghyun Ahn, Jaeho Kim, SeungHyun Park, WonHyoung Ryu   +3 more
wiley   +1 more source

A Proof‐of‐Concept Assessment of a Novel Wearable Eyelid Muscle Device: A Pre‐Clinical Animal Cadaver Study for Eyelid Closure Restoration

Advanced Robotics Research, EarlyView.
This article introduces a soft wearable eyelid sling device incorporating a hydraulic soft artificial muscle (SAM) for achieving complete closure of an eyelid. The SAM is driven by a cam mechanism that provides a displacement profile closely matched with those of a healthy eyelid.
Patrick Pruscino, Phuoc Thien Phan, James Davies, Bibhu Sharma, Tianruo Guo, Chi Cong Nguyen, Nigel H. Lovell, Thanh Nho Do   +7 more
wiley   +1 more source