Results 81 to 90 of about 2,463,932 (332)

Hematopoietic (stem) cells—The elixir of life?

open access: yesFEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo   +4 more
wiley   +1 more source

An Improved Big Bang-Big Crunch Algorithm for Estimating Three-Phase Induction Motors Efficiency [PDF]

open access: yesJournal of Operation and Automation in Power Engineering, 2016
Nowadays, the most generated electrical energy is consumed by three-phase induction motors. Thus, in order to carry out preventive measurements and maintenances and eventually employing high-efficiency motors, the efficiency evaluation of induction ...
Mehdi Bigdeli   +2 more
doaj  

Fault Diagnosis of Induction Motor Using Convolutional Neural Network

open access: yesApplied Sciences, 2019
Induction motors are among the most important components of modern machinery and industrial equipment. Therefore, it is necessary to develop a fault diagnosis system that detects the operating conditions of and faults in induction motors early.
Jong-Hyun Lee   +2 more
doaj   +1 more source

Identification Of Ball Bearing Damage On Induction Motors Through Sound Signal Analysis [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2022
Induction motors are generally used in industry as a drive. Bearing is one part of the motor element that plays an important role because it has the function to support a shaft so that it can rotate without experiencing excessive friction. Bearing damage
Iradiratu Diah Prahmana Karyatanti   +5 more
doaj  

Energy-efficient motors [PDF]

open access: yes, 2008
The use of a copper-squirrel cage in induction motors has been analyzed testing a prototype rated 1.1 kW and comparing the performances with a twin machine with an aluminum cage. The comparison has been made using torque, efficiency, starting torque, and
Boglietti, Aldo   +3 more
core   +1 more source

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

open access: yesFEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang   +5 more
wiley   +1 more source

The effect of induction motor shaft diameter on motor performance

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2017
Induction motors are used in many areas from the past to the present and in different fields with the development of technology has continued to be used.
Asım Gökhan Yetgin
doaj   +1 more source

COMPARISON OF ENERGY CONSUMPTION OF VARIOUS ELECTRICAL MOTORS OPERATING IN A PUMPING UNIT

open access: yesElectrical engineering & Electromechanics, 2020
Purpose. Comparative analysis of energy consumption of various types electric motors in fixed speed centrifugal industrial pump applications is carried out.
V. V. Goman   +4 more
doaj   +1 more source

High frequency losses in induction motors, part 2 [PDF]

open access: yes
The following subject areas are covered: high frequency losses in induction motors; stray losses in induction motors; and high frequency time harmonic losses in induction ...
Nasar, Syed A., Novotny, Donald W.
core   +1 more source

The role and implications of mammalian cellular circadian entrainment

open access: yesFEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

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