Results 111 to 120 of about 192,536 (344)

Assessing the Impact of DoS Attacks on the Performance of Asterisk-Based VoIP Platforms

Telecom
In this work, a hypothesis is studied as to whether different DoS attacks affect the parameters of voice and video streams, as well as performance, on three different VoIP platforms.
Ivan Nedyalkov, Georgi Georgiev
doaj   +1 more source

Evaluation of VoIP QoS Performance in Wireless Mesh Networks

Information, 2017
The main focus of this research article is the evaluation of selected voice over Internet protocol (VoIP) solutions in wireless mesh network (WMN) scenarios.
Mohammad Tariq Meeran, Paul Annus, Muhammad Mahtab Alam, Yannick Le Moullec   +3 more
doaj   +1 more source

Vocal Fold Scar Treatment via Controlled Dexamethasone Delivery With a Light‐Activatable Implant

The Laryngoscope, EarlyView.
A light‐activatable dexamethasone implant was employed for the treatment of vocal fold (VF) scarring in a rabbit model. The implant enables controlled, repeatable drug release via near‐infrared laser irradiation, improving biomechanics, vibratory function, and histological architecture at the injury site.
Denzel Ryan D. Cruz, Nour Awad, Avery Zheng, Alexander Karabachev, Charles Farbos de Luzan, Yoonjee C. Park, Gregory R. Dion   +6 more
wiley   +1 more source

INVESTIGATION OF SIGNALS DISTORTION DURING INTERPOLATION IN SDR TRANSMITTERS WITH QPSK MODULATION

Adaptivni Sistemi Avtomatičnogo Upravlinnâ, 2019
: Software-defined radio (SDR) allows using software to set or modify working radio frequency parameters: communication standard, frequency range, modulation type, output power, etc. An interpolator is an integral part of the transmitter, which increases
Juliy Boiko, Ilya Pyatin, Oleksander Eromenko, Igor Parkhomey   +3 more
doaj   +1 more source

Gender‐Affirming Feminization Voice Surgery: A Scoping Review of Preoperative Assessments

The Laryngoscope, EarlyView.
PRISMA flowchart. ABSTRACT Objective To identify the preoperative assessments and criteria surgeons use to assess the suitability of transfeminine patients for voice feminization surgery. Data Sources Electronic search of Ovid MEDLINE, Ovid Embase, APA PsycINFO, Cochrane Library, CINAHL, and PubMed excluding MEDLINE records was performed on February 11,
Jadin Chahade, Hedieh Keshavars, Janice Y. Kung, Teresa L. D. Hardy, Caroline C. Jeffery   +4 more
wiley   +1 more source

A 21.8–41.6-GHz Fractional-N Subsampling PLL With Dividerless Unequal-REF-Delay Frequency Tracking

IEEE Open Journal of the Solid-State Circuits Society
In this article, a wideband millimeter-wave (mm-wave) fractional-N subsampling phase-locked loop (SSPLL) with low jitter and low power consumption is proposed.
Wen Chen, Yiyang Shu, Xun Luo
doaj   +1 more source

Time-base noise reduction method of sampling osciloscope / Stroboskopinio osciloskopo laiko kanalo triukšmo mažinimo būdas

Mokslas: Lietuvos Ateitis, 2017
This paper proposes a method to increase precision of sampling oscilloscopes time-base then using a new hybrid time-base architecture. The traditional time-base of sampling oscilloscope has three kinds of time base error including time base drift, time ...
Tomaš Tankeliun, Oleg Zaytsev, Vytautas Urbanavičius   +2 more
doaj   +1 more source

Jitter and Shimmer measurements for speaker diarization [PDF]

, 2014
Jitter and shimmer voice quality features have been successfully used to characterize speaker voice traits and detect voice pathologies. Jitter and shimmer measure variations in the fundamental frequency and amplitude of speaker's voice, respectively.
Hernando Pericás, Francisco Javier, Luque, Jordi, Zewoudie, Abraham Woubie   +2 more
core  

Optical beam jitter control

SPIE Proceedings, 2004
For several future imaging and communications spacecraft, a challenging area of technology development is the fine acquisition, tracking, and pointing (ATP) control of the spacecraft and its payload. For example, some spacecraft with large aperture(s) in the range of 10~30 m diameter requires a few arc-seconds accuracy, 10~15 nano-radians jitter, and a
Watkins, R.J., Chen, J., Agrawal, B.N., Shin, Y.S.   +3 more
openaire   +2 more sources

Micro‐Transfer Printed Continuous‐Wave and Mode‐Locked Laser Integration at 800 nm on a Silicon Nitride Platform

Laser &Photonics Reviews, EarlyView.
A heterogeneous III‐V/SiN platform for lasers at 800 nm is realized using the micro‐transfer printing method. Efficient GaAs gain sections are directly butt‐coupled to SiN waveguides, enabling continuous‐wave and mode‐locked extended‐cavity lasers. The mode‐locked lasers generate highly stable pulse trains with repetition rates up to 9.2 GHz and a ...
Max Kiewiet, Stijn Cuyvers, Maximilien Billet, Konstantinos Akritidis, Valeria Bonito Oliva, Gaudhaman Jeevanandam, Sandeep Saseendran, Manuel Reza, Pol Van Dorpe, Roelof Jansen, Joost Brouckaert, Günther Roelkens, Kasper Van Gasse, Bart Kuyken   +13 more
wiley   +1 more source