Results 41 to 50 of about 5,732,477 (296)

Arithmetic Levi-Civita connection

open access: yes, 2019
This paper is part of a series of papers where an arithmetic analogue of classical differential geometry is being developed. In this arithmetic differential geometry functions are replaced by integer numbers, derivations are replaced by Fermat quotient ...
Buium, Alexandru
core   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Microstructure and mechanical properties of electron beam welded joint of IC10 Ni-based single-crystal superalloy

open access: yesHanjie xuebao
Two pieces of 2 mm-thick IC10 Ni-based single-crystal superalloy were butt welded, and the two plates were filled with GH4169 wire by using vacuum electron beam welding; the microstructure and mechanical properties of the welded joints were analyzed. The
Chengzhi WEN   +5 more
doaj   +1 more source

Evolution of Graded Surface Microstructure and Property of Ti6Al4V Threads Processed by Surface Rolling

open access: yesMetals
The surface rolling process is important for the forming property of titanium alloy bolts. This study systematically investigated the evolution of the surface microstructure and property of Ti6Al4V threads induced by surface rolling processes with ...
Wenchao Wang   +6 more
doaj   +1 more source

Adaptive PI and RBFNN PID Current Decoupling Controller for Permanent Magnet Synchronous Motor Drives: Hardware-Validated Results

open access: yesEnergies, 2022
This study presents an adaptive proportional-integral (PI) and radial basis function neural network proportional-integral-derivative (PID) current control solution for permanent magnet synchronous motor (PMSM) drives.
Xiaoli Zeng, Weiqing Wang, Haiyun Wang
doaj   +1 more source

The Talent Connection [PDF]

open access: yes, 2012
The battleground of international competitiveness in the 21st century is innovation, and cities are increasingly viewed as the foremost places where innovation takes place.
Leon, Nick
core  

Theology and Therapy:Maintaining the Connection [PDF]

open access: yes, 2012
The important interaction of theology and psychotherapy in the mid-20th century isreviewed, with particular attention given to the formative role of personalist philosophy and its practical outcomes.
Fergusson, David
core   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

Optimal Maintenance Policy for Corroded Oil and Gas Pipelines using Markov Decision Processes

open access: yesInternational Journal of Prognostics and Health Management, 2022
This paper presents a novel approach to determine optimal maintenance policies for degraded oil and gas pipelines due to internal pitting corrosion. This approach builds a bridge between Markov process-based corrosion rate models and Markov decision ...
Roohollah Heidary   +2 more
doaj   +1 more source

Morphological Forced Connection Method Application in the Development of Plered Ceramic Design [PDF]

open access: yes, 2019
In Plered, the activity of making clay crafts has been carried out for generations. Located in the southern region of Purwakarta Regency, the pottery industry is located in Anjun Village, Citeko Village and Pamoyanan Village.
Muchlis, M. (Muchlis)   +3 more
core  

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