Results 51 to 60 of about 8,642 (215)

Appraisal Reliability of Electromechanical Equipment of Rail Service Car

Communications
This study conducts an in-depth exploration into the principal factors that influence the reliability of specialized rail cars and auto-rail vehicles. It places a particular emphasis on key performance metrics including the average operational duration ...
Ziyoda Mukhamedova Gafurdjanovna, Sherzod Fayzibayev Sabirovich, Dilbar Mukhamedova Gafurdjanovna, Gulshan Ibragimova Ruslanovna, Shokhrukh Kayumov Sharof Ogli   +4 more
doaj   +1 more source

DISTRIBUTION ANALYSIS OF THE POWER SYSTEMS FAULTS [PDF]

Problems of the Regional Energetics, 2013
In our days the significant number of power systems faults is taking place in power grids, being caused by various random factors. An in-depth analysis of these factors and of their distribution is needed in order to provide reliable forecasts and the ...
Popescu V.S.
doaj  

Reliability of indicators of nursing care quality: testing interexaminer agreement and reliability

Revista Latino-Americana de Enfermagem, 2014
OBJECTIVE: this study sought to test the interexaminer agreement and reliability of 15 indicators of nursing care quality.METHODS: this was a quantitative, methodological, experimental, and applied study conducted at a large, tertiary, public teaching ...
Dagmar Willamowius Vituri, Yolanda Dora Martinez Évora   +1 more
doaj   +1 more source

Structural and biochemical analysis of a B12 superbinder

FEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source

Estimarea impactului factorilor de influenţă asupra fiabilităţii reţelelor electrice

Agricultural Science, 2014
Currently, in electrical networks take place a large number of planned and unplanned disconnections, which interrupt the power supply and affect consumers causing economic damages.
POPESCU Victor
doaj  

A Validation Study of Homeopathic Prescribing and Patient Care Indicators

Journal of Traditional and Complementary Medicine, 2014
A preliminary version of the homeopathic prescribing and patient care indicators was available. The instrument was modified further in this study with an intention to address formally its validity and reliability, audit prescriptions, identify areas of ...
Munmun Koley, Subhranil Saha, Shubhamoy Ghosh, Goutam Nag, Monojit Kundu, Ramkumar Mondal, Rajib Purkait, Supratim Patra   +7 more
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

FEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source

Review of Operating Conditions, Diagnostic Methods, and Technical Condition Assessment to Improve Reliability and Develop a Maintenance Strategy for Electrical Equipment

Energies
In the context of increasing demands for the reliability and efficiency of electrical complexes and systems, the problem of assessing and monitoring the technical condition (TC) of electrical equipment is becoming particularly relevant.
Alexander Nazarychev, Iliya Iliev, Daniel Manukian, Hristo Beloev, Konstantin Suslov, Ivan Beloev   +5 more
doaj   +1 more source

Organization of universal system of indicators of supply reliability for practical use

Известия высших учебных заведений: Проблемы энергетики, 2017
In this paper proposes principles of organization of universal system of indicators of supply reliability for practical use in the energy subdivisions and scientific projects.
M. V. Sharygin
doaj   +1 more source

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

FEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui, Agnes Banreti, Armelle L. Ernst, Guillaume Leseigneur, Uwe J. Meierhenrich   +4 more
wiley   +1 more source