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Evaluating synchronization mechanisms

Toby Bloom
1979 Proceedings of the seventh symposium on Operating systems principles - SOSP '79  
Because these terms are so imprecise, we have no good methods for evaluating how well these mechanisms actually meet snch requirements.  ...  This paper presents a methodology for performing such an evaluation.  ...  It is clear that some well-defined methodology for evaluating synchronization mechanisms is needed.  ... 
doi:10.1145/800215.806566 dblp:conf/sosp/Bloom79 fatcat:ouuerbp6qrgjnlvkcuqsei5miy

Development of Master-Slave Surgical Robot System with Heartbeat Synchronization Mechanism (Evaluation of Position Synchronization Performance and Synchronization Suture Operability)

2011 Transactions of the Japan Society of Mechanical Engineers Series C  
In this paper, a master-slave surgical robot system with heartbeat synchronization mechanism for off-pump CABG suturing operation is developed.  ...  In order to evaluate the performance of the system, the synchronization ability test, the master-slave operation test in vivo, and the performance of suturing operation under synchronization were conducted  ...  structure Vertical articulated mechanism Sampling frequency [Hz] 1000 Fig.2 Mechanical structure of master manipulator Fig.1 Master-slave surgical robot system with heartbeat synchronization mechanism  ... 
doi:10.1299/kikaic.77.2363 fatcat:whyguyrgrvfqjfqfrq2pgwnrzi

Synchronization Reliability Evaluation Method for Mechanisms with Different Time Distribution

Huan Pang, Tianxiang Yu, Ning Wang
2018 Mathematical Problems in Engineering  
As action time of mechanisms does not share the identical distribution, the existing synchronization reliability evaluation method has great limitations.  ...  Aimed at the problem, a novel synchronization reliability evaluation method is proposed.  ...  Synchronization Reliability Evaluation for Folding Wings Failure Mechanism Analysis.  ... 
doi:10.1155/2018/8756975 fatcat:ofejexqfefcc5erbicqeyseteu

Self-tuning synchronization mechanisms in network operating systems

Yuval Hershko, Daniel Segal, Hadas Shachnai
1999 Performance Evaluation Review  
Switching between modes by Timeout can result in some improvement over a single synchronization mode.  ...  Conclusions We compared the Timeout rule, that switches between modes at predetermined points of time, to the Queuelength rule, which sensitively tunes the synchronization mode used by the server.  ...  The server can switch between two types of synchronization mechanisms: a blocking mechanism and a waitfree mechanism.  ... 
doi:10.1145/301464.301583 fatcat:gdu5gntelrdwjblks6zp3ac7lm

Evaluation of admissible CAN bus load with weak synchronization mechanism

Hugo Daigmorte, Marc Boyer
2017 Proceedings of the 25th International Conference on Real-Time Networks and Systems - RTNS '17  
Bounded phases allows an affordable synchronization with standard CAN controllers and reduces delays with regard to local clocks.  ...  However, on CAN, global clock is hardly implemented in practice since using a global clock often requires dedicated hardware and complicates the sharing of the bus with non-synchronized nodes.  ...  The bound on the phase between clocks is the consequence of the synchronization mechanism chosen.  ... 
doi:10.1145/3139258.3139261 dblp:conf/rtns/DaigmorteB17 fatcat:ollruin4sjhsvi5k43vwl5a3fe

Reliability Evaluation for Cable-Spring Folding Wing Considering Synchronization of Deployable Mechanism

Yun Gao, Ming Hu, Xiaohong Zhou, Mingzhong Zhang
2021 Actuators  
On this basis, the reliability evaluation for cable-spring folding wing, comprehensively considering deployment performance and synchronization, is carried out.  ...  system and a parallel spring driving mechanism.  ...  Therefore, in view of the synchronization reliability problem, Yu et al. proposed a novel synchronization reliability evaluation method by dividing the integral domain into several independent domains,  ... 
doi:10.3390/act10050099 fatcat:t7b6zntekzalhnlkti5rwlxgp4

Evaluation of EtherCAT Clock Synchronization in Distributed Control Systems
분산 제어 시스템을 위한 EtherCAT 시계 동기화의 성능 평가

Woonggy Kim, Minyoung Sung
2014 Transactions of the Korean Society of Mechanical Engineers A  
The results of the evaluation revealed that the accuracy of the synchronized clock is affected by several factors such as the number of slave devices, period of drift compensation, and type of system time  ...  Abstract: Support for the precise time synchronization of EtherCAT, known as distributed clock (DC), enables the design of highly synchronized operations in distributed real-time systems.  ... 
doi:10.3795/ksme-a.2014.38.7.785 fatcat:lrvczozsr5dzrccyduxx6b467u

Evaluation of Synchronous Motion in Five-axis Machining Centers With a Tilting Rotary Table

Masaomi TSUTSUMI, Daisuke YUMIZA, Keizo UTSUMI, Ryuta SATO
2007 Journal of Advanced Mechanical Design, Systems, and Manufacturing  
However, careful alignment of the center of the rotational axis and the machine coordinate origin is important for evaluating the synchronous accuracy.  ...  This paper proposes a new method for evaluating the synchronous inaccuracy of a translational axis and a rotational axis in five-axis controlled machining centers with a tilting rotary table.  ...  As a result, it may be impossible to evaluate the synchronous accuracy of a translational axis and a rotary axis.  ... 
doi:10.1299/jamdsm.1.24 fatcat:5dnblkzhsfhufjvc5q7eokwwda

An experimental evaluation of synchronization protocol mechanisms in the domain of hierarchical fixed-priority scheduling

Mikael Åsberg, Moris Behnam, Thomas Nolte
2013 Proceedings of the 21st International conference on Real-Time Networks and Systems - RTNS '13  
Table 3 shows that the SRPwD and RRP protocols have the least number of mechanism invocations. SRPwD has even less mechanism operations than RRP.  ...  Whenever Deadline misses Try to lock R 1 • OPEN-HSRP: IEEE Transactions on Industrial Informatics, 2010 • HSTP (Hierarchical Synchronization with Temporal Protection): RTCSA'11 5 Subsystem i T k  ...  The third group mainly use the overrun mechanism approach.  ... 
doi:10.1145/2516821.2516823 dblp:conf/rtns/AsbergBN13 fatcat:wo7egjei7ndnrkrnbzqiypxepm

Design and Experimental Evaluation of Output Synchronization Control for Systems with Input Magnitude Constraints

2011 Transactions of the Japan Society of Mechanical Engineers Series C  
Effectiveness of the proposed methods is validated through experimental evaluations.  ...  To motivate the present control design problem, we first show that an existing output synchronization control law, which modifies primal reference inputs to obtain better output synchronizations, provides  ...  Fig. 4 Responses of the agents Σ 1 and Σ 2 Fig. 7 7 Fig. 7 Output synchronization systems combined with RM and RG Fig. 8 Responses of the agents Σ 1 and Σ 2 applying proposed synchronization algorithm  ... 
doi:10.1299/kikaic.77.813 fatcat:os26ftajafbcnnyapvwqjouema

Dynamic time window mechanism for time synchronous VEP-based BCIs—Performance evaluation with a dictionary-supported BCI speller employing SSVEP and c-VEP

Felix Gembler, Piotr Stawicki, Abdul Saboor, Ivan Volosyak, Zhishun Wang
2019 PLoS ONE  
Spelling performance was evaluated using an 8-target dictionary-supported BCI utilizing an n-gram word prediction model.  ...  The fastest speeds can be achieved if targets are identified in a synchronous way (i.e., after a pre-set time period the system will produce a command output).  ...  Dynamic time window mechanism for time synchronous VEP-based BCIs For the single word spelling tasks (BCI and BRAIN), the average ITR was 92.65 and 75.06 bpm for the c-VEP and SSVEP system; the difference  ... 
doi:10.1371/journal.pone.0218177 pmid:31194817 pmcid:PMC6564540 fatcat:i2knbfhlevhopmbysmwc4e3ddi

Evaluation of radial stability of maglev blood pump for extracorporeal circulation driven to synchronize with heart beat

Ryota SATOH, Toru MASUZAWA, Masahiro OSA, Kouhei OHNO, Takashi NISHIMURA, Shunei KYO
2018 Journal of the Japan Society of Applied Electromagnetics and Mechanics  
In this work, radial displacements of the rotor were measured to evaluate passive stability with improved impeller which generated stronger axial attractive force.  ... 
doi:10.14243/jsaem.26.362 fatcat:dazqzqbzy5ebrn4tbt6sropcf4

Evaluation Method for Multi-Degree-of-Freedom Spherical Electromagnetic Synchronous Actuators under Allowable Current

2017 Journal of the Japan Society of Applied Electromagnetics and Mechanics  
doi:10.14243/jsaem.25.131 fatcat:z47wan5xobgghptkfnbwbmv574

Development and Evaluation of Curved Synchronous Die-Less Spinning(Machine Elements, Design and Manufacturing)

forming around a f 王 exual center 湾 曲 同期 ダイ レ ス ス ピ ニ ン グ加工 法の 開発 と 評 価 431 日本機械 学 会 論 文 集 ( C 編 ) 76 巻 762 号 ( 2010 − 2) 論 文 No . 09 − 0566 * 関 口 明 生 * 1 , 荒 井 裕 彦 * 2 Devel{} p 皿 ent and Evaluation  ...  of Curved Synchronous Die − Less Spinning Akio SEKIGUCHI * s and Hirohiko ARAI " 3Graduate SchQGI of Systoms and Information Engineeri , University of Tsukuba, 工 一 / 1Tennohda [ , Tsukubu −  ... 
doi:10.1299/kikaic.76.431 fatcat:ot5zjhlk6bdf7ispsxulrjzbxy

Assuring Resilient Time Synchronization

Andrea Bondavalli, Andrea Ceccarelli, Lorenzo Falai
2008 2008 Symposium on Reliable Distributed Systems  
This paper describes the main functions, services and time-related mechanisms of R&SAClock and an implementation for the NTP synchronization mechanism and Linux OS.  ...  Acronym Name and description RD root delay: transmission delay (one-way or round trip, depending on synchronization mechanism) from local node to global time node (including all system-related delays)  ...  For any user A and any time t, the uncertainty evaluation algorithm operates to satisfy U c (t) ≤ α A , by forcing the synchronization mechanisms to perform synchronization attempts, if necessary.  ... 
doi:10.1109/srds.2008.12 dblp:conf/srds/BondavalliCF08 fatcat:jmb462qwijf43p4kpl6dljyeji
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