Achieving fairness in OBS using offset-time and burst length differentiation

2006 ◽  
Author(s):  
Chunlei Zhu ◽  
Yanhe Li ◽  
Yu Du ◽  
Xiaoping Zheng ◽  
Yili Guo ◽  
...  
Keyword(s):  
Burst Length ◽  
Offset Time

scholarly journals A mechanism of QoS differentiation based on offset time and adjusted burst length in OBS networks

2020 ◽  
Vol 28 (5) ◽  
pp. 2808-2820
Author(s):  
Viet Minh Nhat VO ◽  
Trung Duc PHAM ◽  
Thanh Chuong DANG ◽  
Van Hoa LE
Keyword(s):  
Burst Length ◽  
Qos Differentiation ◽  
Offset Time

Motor Patterns During Flight and Warm-up in Lepidoptera

1968 ◽  
Vol 48 (1) ◽  
pp. 89-109
Author(s):  
ANN E. KAMMER
Keyword(s):  
Motor Neurons ◽  
Muscle Activity ◽  
Motor Units ◽  
Wingbeat Frequency ◽  
Motor Patterns ◽  
Flight Pattern ◽  
Warm Up ◽  
Burst Length ◽  
Synergistic Muscles ◽  
Phase Relationships

1. The patterns of muscle activity during warm-up were compared to those of flight. In the skipper Hylephila phylaeus and in the hawk moths Celerio lineata and Mimas tiliae the intervals between bursts of muscle potentials are the same as the wingbeat periods of flight at the same thoracic temperature, and the burst length is the same as in flight. In saturniids the period and burst length are both shorter during wing-vibrating than during flight. 2. During wing-vibrating the amplitude of the wing movement is small, and some of the muscles which are antagonists in flight are active simultaneously. In Hylephila phylaeus and Celerio lineata there is a phase change between some synergistic muscles, while some antagonistic pairs retain the phase relationships of flight. During wing-vibrating in Mimas tiliae and in saturniids all the motor units sampled were active at the same time. 3. In M. tiliae a variety of phase relationships intermediate between those of wing-vibrating and flight were observed, including a case of ‘relative co-ordination’ between motor units in the mesothorax. The results exclude the possibility that a single pace-making centre drives the motor neurons in the flight pattern. 4. A model of the central nervous interactions which generate the observed motor patterns is proposed. It is postulated that a small group of positively coupled neurons produces bursts of impulses at the wingbeat frequency and that these groups interact to generate the phase relationships seen during warm-up and flight.

Characteristics of Speech Production after Tracheoesophageal Puncture

1986 ◽  
Vol 29 (4) ◽  
pp. 499-504 ◽  
Author(s):  
Joanne Robbins ◽  
John Christensen ◽  
Gail Kempster
Keyword(s):  
Motor Control ◽  
Speech Production ◽  
Voice Onset Time ◽  
Onset Time ◽  
Major Influence ◽  
Vowel Duration ◽  
Voice Production ◽  
Audio Recordings ◽  
Tracheoesophageal Puncture ◽  
Offset Time

Voice onset time (VOT) and vowel duration characteristics of speakers following the Singer-Blom technique of tracheoesophageal puncture (1980) were compared to those of traditional esophageal and laryngeal speakers. Fifteen subjects in each of the three speaker groups produced the words /pik/, /kup/, and /kup/ in a carrier phrase while audio recordings were obtained. Broadband spectrograms were made of the consonant-vowel-consonant (CVC) utterances and vowel duration and VOT were measured. Analysis of variance (ANOVA) procedures revealed that the tracheoesophageal speakers produced significantly shorter VOTs and longer vowel durations than the laryngeal speakers. However, the longer vowel durations for the traeheoesophageal speakers were not completely accounted for by the shorter VOTs found for that group. Spectrographic examination suggests that delayed voice offset time for the tracheoesophageal speakers also contributes to their longer vowel durations. Overall findings indicate that the physical characteristics and motor control properties of the neoglottis, even when driven by pulmonary air as in tracheoesophageal speakers, exert a major influence on alaryngeal voice production.

Consecutive Days of Racing Does Not Affect Sleep in Professional Road Cyclists

2021 ◽  
pp. 1-4
Author(s):  
Charli Sargent ◽  
Shona L. Halson ◽  
David T. Martin ◽  
Gregory D. Roach
Keyword(s):  
Sleep Duration ◽  
Sleep Onset ◽  
Self Report ◽  
Activity Monitors ◽  
Sleep Diaries ◽  
Time In Bed ◽  
Road Cycling ◽  
Offset Time ◽  
The Impact

Purpose: Professional road cycling races are physiologically demanding, involving successive days of racing over 1 to 3 weeks of competition. Anecdotal evidence indicates that cyclists’ sleep duration either increases or deteriorates during these competitions. However, sleep duration in professional cyclists during stage races has not been assessed. This study examined the amount/quality of sleep obtained by 14 professional cyclists competing in the Australian Tour Down Under. Methods: Sleep was assessed using wrist activity monitors and self-report sleep diaries on the night prior to start of the race and on each night during the race. The impact of each day of the race on sleep onset, sleep offset, time in bed, sleep duration, and wake duration was assessed using separate linear mixed effects models. Results: During the race, cyclists obtained an average of 6.8 (0.9) hours of sleep between 23:30 and 07:27 hours and spent 13.9% (4.7%) of time in bed awake. Minor differences in sleep onset (P = .023) and offset times (P ≤.001) were observed during the week of racing, but these did not affect the amount of sleep obtained by cyclists. Interestingly, the 3 best finishers in the general classification obtained more sleep than the 3 worst finishers (7.2 [0.3] vs 6.7 [0.3] h; P = .049). Conclusions: Contrary to anecdotal reports, the amount of sleep obtained by cyclists did not change over the course of the 1-week race and was just below the recommended target of 7 to 9 hours for adults.

scholarly journals Written Language Bursts Mediate the Relationship Between Transcription Skills and Writing Performance

2017 ◽  
Vol 34 (3) ◽  
pp. 306-332 ◽  
Author(s):  
Teresa Limpo ◽  
Rui A. Alves
Keyword(s):  
Second Graders ◽  
Written Language ◽  
Writing Fluency ◽  
Burst Length ◽  
Mediating Role ◽  
Text Quality ◽  
Path Analyses ◽  
Children's Writing ◽  
Transcription Skills

It is established that transcription skills (handwriting and spelling) constrain children’s writing. Yet, little is known about the mechanism underlying this relationship. This study examined the mediating role of bursts and pauses on the link between transcription skills and writing fluency or text quality. For that, 174 second graders did the alphabet task and wrote a story using HandSpy. Path analyses indicated that writing fluency and text quality models were excellent descriptions of the data, with 80% and 46% of explained variance, respectively. Results showed that handwriting and spelling influenced writing fluency only indirectly via burst length and short pauses duration (full mediation); and that whereas only handwriting contributed to text quality directly, both handwriting and spelling contributed to text quality indirectly, via burst length (partial mediation). These findings suggest that better transcription skills allow students to write more words without pausing, which in turn results in more fluent and better writing.

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