Results 21 to 30 of about 35,310,836 (192)

The Trade-Off between the Controller Effort and Control Quality on Example of an Electro-Pneumatic Final Control Element

open access: yesActuators, 2019
For many years, the programmable positioners have been widely applied in structures of modern electro-pneumatic final control elements. The positioner consists of an electro-pneumatic transducer, embedded controller, and measuring instrumentation ...
Michał Bartyś, Bartłomiej Hryniewicki
doaj   +1 more source

Glenoid retroversion does not impact clinical outcomes or implant survivorship after total shoulder arthroplasty with minimal, noncorrective reaming

open access: yesJSES International, 2022
Hypothesis: Both clinical outcomes and early rates of failure will not be associated with glenoid retroversion. Methods: All patients who underwent an anatomic total shoulder arthroplasty with minimal, noncorrective reaming between 2006 and 2016 with ...
Travis J. Dekker, MD   +8 more
doaj   +1 more source

A Brief Overview of Current Methods for Assessing the Operational Stability of Low-Power Grid-Connected Photovoltaic PowerPlants

open access: yesProceedings of the International Conference on Applied Innovations in IT
The article provides a brief overview of modern approaches to assessing the operational stability of low-power grid-connected photovoltaic stations (PV) in conditions of increasing climate stress and grid infrastructure restrictions. Based on an analysis
Afzal Kudratov   +4 more
doaj   +1 more source

Computing the Number of Failures for Fuzzy Weibull Hazard Function

open access: yesMathematics, 2021
The number of failures plays an important factor in the study of maintenance strategy of a manufacturing system. In the real situation, this number is often affected by some uncertainties. Many of the uncertainties fall into the possibilistic uncertainty,
Hennie Husniah, Asep K. Supriatna
doaj   +1 more source

Estimation of Mean Time between Failures in Two Unit Parallel Repairable System [PDF]

open access: yes, 2014
Mean time between failures is a method for estimating the reliability parameters of any repairable system. MTBF is also helpful in performing decision analysis in parallel and series systems and subsystems.
, Seema Sahu, V. K. Pathak, Kamal Mehta, Ashish Namdeo
core   +1 more source

METHOD FOR DETERMINING THE MEAN TIME BETWEEN FAILURES OF ESP UNITS

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2022
Electrical submersible pumps are widespread in the oil industry, in particular, for production of watered mixture in periodic pumping mode. Intermittent mode allows reducing energy costs due to application of high-rate equipment with higher efficiency and prompt change of well fluid withdrawal during change of well parameters without changing equipment.
Mikhail V. Rukin   +2 more
openaire   +1 more source

Analytic mode matching for a circular dissipative silencer containing mean flow and a perforated pipe [PDF]

open access: yes, 2007
An analytic mode matching scheme that includes higher order modes is developed for a straight-through circular dissipative silencer. Uniform mean flow is added to the central airway and a concentric perforated screen separates the mean flow from a bulk ...
Kirby, R   +3 more
core   +1 more source

Phon Mean oral history recording

open access: yes, 2001
An audio recording of an oral history of Phon Mean about fleeing Cambodia with her family at age ten and coming to the United States. She talks about life in Cambodia when she was a child and then about life in the U.S., including school, her first job ...
Mean, Phon
core   +1 more source

Automatically Monitoring, Controlling, and Reporting Status/Data for Multiple Product Life Test Stands

open access: yesInventions, 2019
This paper describes an industry laboratory implementation of local and remote automation monitoring and control of several product testing stands for status, safety, and an efficient use of resources, as well as the purpose and inter-relationship ...
Richard Fertell, Hamed Ershad
doaj   +1 more source

Reliability Qualification Test of Train Monitoring Devices

open access: yes机车电传动, 2017
Currently rail transit has no reliability qualification test standards yet. To verify whether the MTBF of LKJ meet the requirements, with the main working environment analysis of LKJ, comprehensive environmental conditions of six kinds of stress which ...
WANG Peng   +3 more
doaj  

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