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Performance Evaluation of MQTT as a Communication Protocol for IoT and Prototyping

Yuya Sasaki, Tetsuya Yokotani
2019 Advances in Technology Innovation  
The hypertext transfer protocol (HTTP) has been widely used as a communication protocol for Internet access.  ...  In this paper, we clarify some problems of HTTP for IoT and propose MQ telemetry transport (MQTT), which is a promising candidate for the IoT protocol, after conducting a performance comparison with HTTP  ...  This paper describes, performance evaluation of IoT communication based on MQTT, and compares the performance of HTTP and MQTT protocol.  ... 
doaj:e87340c16ad74f56bd56043dd7d6de76 fatcat:elim2jguqbhx3bxmw7ihkxsp7a

Performance of Poly Vinyl Caprolactam as Hydrate Inhibitor in a Prototype Horizontal Subsea Flowline

Toyin Olabisi Odutola, Okomo Felicia
2021 Petroleum Science and Engineering  
In this study, a 12 meters laboratory flowline that closely mimics the conditions in a horizontal flowline is used to analyse Poly Vinyl Caprolactam's performance (PVCap) as a hydrate inhibitor.  ...  PVCap performed optimally in preventing hydrate formation in the simulated subsea horizontal pipeline.  ...  The performance of PVCap should be compared to other thermodynamic hydrate inhibitors.  ... 
doi:10.11648/j.pse.20210502.13 fatcat:xt6hclzj3jbrlo3ay7wdwddc2e

Performance characteristics of a new prototype for a portable GC using ambient air as carrier gas for on-site analysis

Juan M. Sanchez, Richard D. Sacks
2007 Journal of Separation Science  
Original Paper Performance characteristics of a new prototype for a portable GC using ambient air as carrier gas for on-site analysis The performance characteristics of a portable GC instrument requiring  ...  Decomposition of sensitive compounds during desorption is greater with air as the carrier gas than with hydrogen.  ...  As indicated in Section 1, the performance of the preconcentrator inlet system and its effects on the band broadening of the peaks have been described in detail [40] .  ... 
doi:10.1002/jssc.200600367 pmid:17566340 fatcat:ot6fstpvnna2dk5zqoqxglcdy4

Universal serial bus as a communication medium for prototype networked data acquisition and control systems - performance optimisation and evaluation

Andrzej Tutaj, Jacek Augustyn
2018 Proceedings of the 2018 Federated Conference on Computer Science and Information Systems  
In a prototype system, a PC or Mac computer with a general-purpose operating system is often selected as a host or root node for the USB bus and it acts as a central data collector, supervisory user interface  ...  However, achieved communication performance is often unsatisfactory since USB stack drivers incorporated in Windows, Linux, or macOS operating systems are not optimised for such specific purposes.  ...  Hence, the performance of such prototype configurations can be poor unless special measures are undertaken.  ... 
doi:10.15439/2018f203 dblp:conf/fedcsis/TutajA18 fatcat:myvembomlfg4xeo5cus4cdipge

Design and performance of a high-pressure xenon gas TPC as a prototype for a large-scale neutrinoless double-beta decay search [article]

S. Ban, M. Hirose, A. K. Ichikawa, Y. Iwashita, T. Kikawa, A. Minamino, K. Miuchi, T. Nakadaira, Y. Nakajima, K. D. Nakamura, K. Z. Nakamura, T. Nakaya (+7 others)
2020 arXiv   pre-print
In order to evaluate the detector performance and validate its design, a 180 L size prototype is being constructed and its commissioning with partial detector has been performed.  ...  In this paper, we describe design of a larger prototype with a 180 L volume and evaluate its performance.  ...  Figure 4 shows the ELCC plane installed as the first phase 180 L prototype. The of oxygen-free copper.  ... 
arXiv:2001.03281v2 fatcat:aboebgc3wzaulpoo43sqnos2ta

Performance of cold-preserved rat liver Microorgans as the biological component of a simplified prototype model of bioartificial liver

María Dolores Pizarro, María Gabriela Mediavilla, Alejandra Beatriz Quintana, Ángel Luis Scandizzi, Joaquín Valentín Rodriguez, María Eugenia Mamprin
2016 World Journal of Hepatology  
The objectives of this work were to develop a simplified prototype BAL suitable to use LMOs as biological component, and to evaluate the performance of fresh and cold preserved rat LMOs in this model.  ...  DISCUSSION The goal of this study was the development of a simplified BAL prototype suitable to use LMOs as biological component, and the evaluation of fresh and cold pre served rat LMOs performance in  ... 
doi:10.4254/wjh.v8.i33.1442 pmid:27957242 pmcid:PMC5124715 fatcat:ptsmwasr7nandkfqfodgytu3bu

STUDY THE EFFECT OF THE ENVIRONMENTAL PARAMETERS ON THE PERFORMANCE OF A PROTOTYPE FOR ASPHALT SOLAR COLLECTOR USING AIR AS A WORKING FLUID

Kaddah, K.Sh., Hewhy, M. A., Selim, A., Saad, H., Ramadan, A. M.
2016 Journal of Environmental Science  
Also it can be concluded that the ASC prototype performance for producing energy depends on prototype components in terms of chimney height, asphalt temperature and the environmental / atmospheric conditions  ...  In this research, the first ASC prototype was built outside the laboratory and using atmospheric air as a working fluid.  ...  The efficiency was increased as the chimney height increased In summary, it can be concluded that the ASC prototype performance for producing energy depends on prototype components in terms of chimney  ... 
doi:10.21608/jes.2016.27661 fatcat:by3irn6sazbnfar2tojpu4qkma

Study of the influence of the operational parameters on the photoelectro-Fenton performance of an industrial wastewater treatment prototype using Orange II as a model pollutant

Irma Robles, Francisco J. Rodríguez-Valadez, Eduardo Castaño, Luis A. Godínez
2017 Sustainable Environment Research  
From the resultant data, and from a variable interaction analysis, a model of the reactor's performance as well as a characteristic set of experimental conditions was obtained.  ...  A two-stage photoelectro-Fenton reactor was built and employed to test its ability to remove colour using Orange II as a model dye compound.  ...  For this purpose, an Orange II solution was used to model the prototype performance.  ... 
doi:10.1016/j.serj.2016.08.004 fatcat:42dqbmlcvrelrmthdrbuxub36e

Differences in the use of gel-electrolytes and liquid-electrolytes on the performance of dye sensitized solar cells (DSSC) prototype based TiO2 nanoparticles with mulberry (morrus) extract as dye Sensitizer on ITO glass substrate

Irmayatul Hikmah, ZId Latifatas Zahrok, Gontjang Prajitno
2020 Jurnal Fisika dan Aplikasinya  
A prototype of Dye Sensitized Solar Cell (DSSC) based TiO2 nanoparticles and mulberry (morus) extract as dye sensitizer on the ITO glass substrate has been produced.  ...  The study aims to determine the difference between the use of gel electrolyte and liquid electrolyte on its influence on DSSC performance.  ...  known as solar cells [1] .  ... 
doi:10.12962/j24604682.v17i1.6988 fatcat:cy2wn663wfgnfiep6likmt4f3m

Design and performance of a 35-ton liquid argon time projection chamber as a prototype for future very large detectors [article]

D. L. Adams, M. Baird, G. Barr, N. Barros, A. Blake, E. Blaufuss, A. Booth, D. Brailsford, N. Buchanan, B. Carls, H. Chen, M. Convery (+62 others)
2020 arXiv   pre-print
Measurements are performed using the Phase II data to extract signal and noise characteristics and to align the detector components.  ...  Scaling to this larger mass, as well as the requirement for underground construction places a number of additional constraints on the design.  ...  performing as designed.  ... 
arXiv:1912.08739v2 fatcat:xhv6ffrtpbc6bmi57m2hvcjeuy

Design and performance of a 35-ton liquid argon time projection chamber as a prototype for future very large detectors

D.L. Adams, M. Baird, G. Barr, N. Barros, A. Blake, E. Blaufuss, A. Booth, D. Brailsford, N. Buchanan, B. Carls, H. Chen, M. Convery (+62 others)
2020 Journal of Instrumentation  
Measurements are performed using the Phase II data to extract signal and noise characteristics and to align the detector components.  ...  Scaling to this larger mass, as well as the requirement for underground construction places a number of additional constraints on the design.  ...  performing as designed.  ... 
doi:10.1088/1748-0221/15/03/p03035 fatcat:yav35ooeybhivgm6fg5pihgyky

Performing digital ways of knowing: epistemic walks with methods-as-prototypes

Chiara Carrozza, Andrea Gaspar
2016 Graduate Journal of Social Science   unpublished
Inspired by emerging scholarship that looks at prototypes as a cultural and epistemic form, we delve into an exploration of methods (both traditional and digital) as prototypes open ended , non-instrumental  ...  open sourcing, prototyping and hacking as part of our knowledgemaking practices gives us new ways to perform research as 'craft' -research as a process of 'making' , rather than just extracting, knowledge  ...  Notwithstanding the different trajectories, we see both our explorations as animated by aspects of prototyping as a cultural heuristic: we explored methods (both digital and traditional ones) as prototypes  ... 
fatcat:vzl4gbbyb5gz7hrc5jk7z2jsii

14aSE-2 TPC位置分解能の磁場依存性(14aSE ワイヤーチェンバー・エマルジョン,素粒子実験領域)
14aSE-2 Performance studies of a TPC prototype for linear collider experiments : Magnetic field dependence of position resolution

K. Nakamura, T. Araki, K. Ikematsu, Y. Kato, H. Kuroiwa, M. Kobayashi, A. Sugiyama, O. Nitoh, M. Habu, K. Fujii, T. Matsuda, H. Yamaoka (+6 others)
2005 Meeting Abstracts of the Physical Society of Japan (Nihon Butsuri Gakkai koen gaiyoshu)  
14aSE − 4 DCBA 実験 に お け る ピ ッ ク ア ッ プ ワ イ ヤ ー 付 きチ ェ ン バ ー の 特 性 岡 山 大 自 然 、 高 工 研 【 パ .  ...  丙 容 と、 そ の 騨 結 果 に つ い て 報 告 馥 1 − tt だ ・ す"・ 黐 蓁 靉 一 窺 / [ 翻 「 1 叫 h l TPC 鑿 灘 麟驪 鑾 懿 覊 蠶 讖 XReselvtiOn ( GEM と MWPC の 比 較 、 B= 1T ) 14aSE ・ 2TPC 位 置 分 解能 の 磁 場 依 存 性 Per「 oma 罰 ce St朏 dies of a TPC prototype  ... 
doi:10.11316/jpsgaiyo.60.2.1.0_16_2 fatcat:dm3c7sgxgnbl5emvaulatziija

Heterogeneity as key feature of high performance computing: the PQE1 prototype

P. Palazzari, L. Arrcipiani, M. Celino, R. Guadagni, A. Marongiu, A. Mathis, P. Novelli, V. Rosato
Proceedings 9th Heterogeneous Computing Workshop (HCW 2000) (Cat. No.PR00556)  
We present the HW structure and the SW tools developed for the PQE1 prototype.  ...  From '96 he is staff scientist at the Italian National Agency for New Technologies, Energy and the Environment (ENEA) where works on the High Performance Computing and Networking project.  ...  The idea is to avoid, as much as possible, the use of general purpose systems just because they perform 'quite well' in all the problems but not 'very well' for any problem.  ... 
doi:10.1109/hcw.2000.843729 dblp:conf/hcw/PalazzariACGMMNR00 fatcat:wbthmnumhrgddbphtp4xsmljqi

License to Fail? How Leader Group Prototypicality Moderates the Effects of Leader Performance on Perceptions of Leadership Effectiveness

S.R. Giessner, D.L. van Knippenberg, Ed Sleebos
2008 Social Science Research Network  
AND KEYWORDS Abstract Leadership often serves as an explanatory category for performance outcomes (i.e., failure and success).  ...  Because group prototypical leaders are more trusted by their followers, we hypothesized that group prototypical leaders are evaluated as more effective after failure information than non-prototypical leaders  ...  as a function of leader group prototypicality and leader performance (Study 1).  ... 
doi:10.2139/ssrn.1307544 fatcat:bx4of4p7nzdjfhi3uehamte7ma
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