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Lock-free locks revisited

open access: yesProceedings of the 27th ACM SIGPLAN Symposium on Principles and Practice of Parallel Programming, 2022
This paper presents a new and practical approach to lock-free locks based on helping, which allows the user to write code using fine-grained locks, but run it in a lock-free manner. Although lock-free locks have been suggested in the past, they are widely viewed as impractical, have some key limitations, and, as far as we know, have never been ...
Ben-David, Naama   +2 more
openaire   +2 more sources

Giant injection-locking bandwidth of a self-pulsing limit-cycle in an optomechanical cavity

open access: yesCommunications Physics, 2022
Locking of oscillators to ultra-stable external sources is of paramount importance for improving close-to-carrier phase noise in free running oscillators.
Daniel Navarro-Urrios   +8 more
doaj   +1 more source

Lock-Free Hopscotch Hashing [PDF]

open access: yes, 2020
In this paper we present a lock-free version of Hopscotch Hashing. Hopscotch Hashing is an open addressing algorithm originally proposed by Herlihy, Shavit, and Tzafrir, which is known for fast performance and excellent cache locality. The algorithm allows users of the table to skip or jump over irrelevant entries, allowing quick search, insertion, and
Kelly, Robert   +2 more
openaire   +3 more sources

Optimality analysis of train platforming and routing with different interlocking modes

open access: yesCommunications in Transportation Research, 2022
The train platforming and routing (TPR) problem is to decide train operations within stations after the network-wise train schedules are determined. A feasible TPR plan requires both platform and route conflict-free, where the avoidance of route conflict
Yuan Wang, Xiaopeng Li
doaj   +1 more source

Lock-free parallel dynamic programming [PDF]

open access: yesJournal of Parallel and Distributed Computing, 2010
We show a method for parallelizing top down dynamic programs in a straightforward way by a careful choice of a lock-free shared hash table implementation and randomization of the order in which the dynamic program computes its subproblems. This generic approach is applied to dynamic programs for knapsack, shortest paths, and RNA structure alignment, as
Stivala, A.   +4 more
openaire   +4 more sources

Mechanisms of dual-wavelength dissipative soliton mode-locking in net-normal dispersion fiber lasers

open access: yesResults in Physics, 2022
Dual-wavelength mode-locked fiber lasers have attracted great attention due to their enormous potential in facilitating dual-comb spectroscopy. However, mechanism for dual-wavelength dissipative soliton mode-locking and the intracavity dynamics are still
Tingting Liu   +3 more
doaj   +1 more source

On-Demand Q-Switching Regime in Optically Injected Dual-Section Quantum-Dot Laser

open access: yesIEEE Photonics Journal, 2022
Pure Q-switching (self-pulsating) behaviour is shown for the first time in an optically injected two-section quantum-dot laser. Upon CW optical injection, it was possible to switch the operation regime from free-running mode-locking to locked Q-switching.
Ana Filipa Ribeiro   +2 more
doaj   +1 more source

Injection locking and noise reduction of resonant tunneling diode terahertz oscillator

open access: yesAPL Photonics, 2021
We studied the injection-locking properties of a resonant-tunneling-diode terahertz oscillator in the small-signal injection regime with a frequency-stabilized continuous THz wave.
Tomoki Hiraoka   +7 more
doaj   +1 more source

2:1 Injection-Locked Frequency Dividers Using Multi-Resonance Spiral-Inductor Resonator

open access: yesIEEE Access, 2020
This article describes two low-power and wide locking range capacitive cross-coupled divideby-2 injection-locked frequency dividers (ILFDs) implemented in TSMC standard 0.18 μm processes.
Sheng-Lyang Jang   +2 more
doaj   +1 more source

Prosthetic complications of fixed dental prostheses supported by locking-taper implants: a retrospective study with a mean follow-up of 5 years

open access: yesBMC Oral Health, 2021
Background Restoration with locking-taper implants is a widely used methodology. However, conical connection systems such as locking-taper implant systems have rarely been examined. This study provides a retrospective investigation of locking-taper fixed
Wen mo Gao, Wei Geng, Chen chen Luo
doaj   +1 more source

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