Results 31 to 40 of about 288,836 (289)

Study of the Enhanced Oil Recovery Mechanism and Remaining Oil State of Heavy Oil after Viscosity-Reducer-Assisted CO2 Foam Flooding: 2D Microvisualization Experimental Case

open access: yes, 2023
Although traditional viscosity-reducer-assisted water flooding can improve heavy oil recovery, it does not have a sufficient advantage over expanding the sweep range and advancing the displacement front deeply.
Wenyang Shi (14550508)   +8 more
core   +1 more source

A Study on Design of Cycloid Reducer for Remote Weapons Systems [PDF]

open access: yes한국정밀공학회지, 2017
An essential mechanical element in an industrial machine is a reducer, which transfers the rotation of an electrical motor or engine to another part with amplified torque. Some reducers, such as planetary reduction gears, a harmonic reducer, or a cycloid
Jin Seok Park   +3 more
doaj   +1 more source

Fast-individual-harmonic-extraction technique [PDF]

open access: yes, 2005
One outcome of a PhD project (C H Ng, University studentship) A collaborative work (the Energy Systems Group, Northumbria and Durham University). It deals with the problem of harmonic suppression or elimination in power systems for safety and power ...
Busawon, Krishna   +3 more
core   +1 more source

Life Prediction of Flexspline based on the Modified P-S-N Curve

open access: yesJixie chuandong, 2021
By using Hypermesh to mesh the harmonic reducer and utilizing Abaqus to complete its transient analysis. Based on the results of transient analysis,the position of the dangerous point of the flexspline is determined,a method of extracting and ...
Qingwen Huang, Baisheng Wu, Delin Liao
doaj  

A Novel Strain Wave Gear Reducer with Double Flexsplines

open access: yesActuators, 2023
Strain wave gear reducers, also known as harmonic drives, are widely used in industrial robots and collaborative robots. The zero-backlash feature is very important for these applications.
Zilong Ling   +6 more
doaj   +1 more source

Load analysis and deformation research of the flexible bearing based on a three-force ring superposition method

open access: yesMechanics & Industry, 2021
The flexible bearing is a key component of harmonic reducer enabling the flexspline to generate a controllable elastic deformation. Its performance and life will significantly affect the normal operation of harmonic reducer.
Yu Yang   +3 more
doaj   +1 more source

ON THE CONVERGENCE OF THE EULER HARMONIC SERIES [PDF]

open access: yes, 2000
The aim oj this article is to study the convergence oj the Euler harmonic series. Firstly, the results concerning the convergence oj the Smaralldache and Erdos harmonic junctions are reviewed Secondly, the Euler harmonic series is proved to be convergent
Tabirca, Tatiana, Tabirca, Sabin
core   +1 more source

Harmonizing science and management options to reduce risks of cyanobacteria

open access: yesHarmful Algae, 2022
Management of cyanobacteria has become an increasingly complex venture. Cyanobacteria risks have amplified as society moves forward in an era of accelerated global changes. The cyanobacteria management "pendulum" has progressively shifted from prevention to mitigation, with management considerations often put forth after bloom formation.
Kevin J. Erratt   +2 more
openaire   +2 more sources

Harmonic diffeomorphisms of noncompact surfaces and Teichmüller spaces [PDF]

open access: yes, 2002
Let g : M -> N be a quasiconformal harmonic diffeomorphism between noncompact Riemann surfaces M and N. In this paper we study the relation between the map g and the complex structures given on M and N.
Markovic, V. (Vladimir)   +1 more
core   +1 more source

Retrospective Analysis of Donor Lymphocyte Infusions in Pediatric Patients With Mixed Chimerism After Hematopoietic Stem Cell Transplantation

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Allogeneic hematopoietic stem cell transplantation (alloHSCT) is an essential therapy for several malignant and nonmalignant diseases, but relapse and graft loss remain the principal threats to its success. Routine monitoring of chimerism and minimal residual disease (MRD) enables early detection of imminent recurrence and guides ...
Carmen Junk   +10 more
wiley   +1 more source

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