Results 51 to 60 of about 2,777,990 (323)

Hierarchical distributed optimization of constraint-coupled convex and mixed-integer programs using approximations of the dual function

open access: yesEURO Journal on Computational Optimization, 2023
In this paper, two new algorithms for dual decomposition-based distributed optimization are presented. Both algorithms rely on the quadratic approximation of the dual function of the primal optimization problem.
Vassilios Yfantis   +4 more
doaj   +1 more source

The Number of Plane Corner Cuts

open access: yesAdvances in Applied Mathematics, 1999
An \(n\)-element subset \(\lambda\) of \(\mathbb{N}^2\) which is cut off a line is called a (plane) corner cut of size \(n\). Let be \({\mathbb{N}^2\choose n}_{ \text{cut}}\) the set of corner cuts of size \(n\). [See \textit{S. Onn} and \textit{B. Sturmfels}, ibid., 29-48 (1999; above).] The authors give a generating for the number \(\#{\mathbb{N}^2 ...
Corteel, Sylvie   +3 more
openaire   +1 more source

Cutting Force Prediction in Drilling of Titanium Alloy

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2012
Cutting force in drilling of Ti-6Al-4V is studied with simulation based on a predictive model. In the force model, three-dimensional chip flow is made by piling up the orthogonal cuttings in the planes containing the cutting velocities and the chip flow ...
Shoichi TAMURA   +2 more
doaj   +1 more source

Comparative Evaluation of Hemodiafiltration, Hemoperfusion, and Standard Hemodialysis on Efficacy, Inflammatory Control, Dialysis Adequacy, and Safety in End‐Stage Renal Disease: A Prospective Observational Study

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic micro‐inflammation in patients with end‐stage renal disease (ESRD) is a significant driver of cardiovascular complications and diminished quality of life. While standard hemodialysis (SHD) effectively manages small‐molecule clearance, its ability to remove medium‐to‐large uremic toxins—the primary catalysts of systemic ...
Hongwei Zuo   +5 more
wiley   +1 more source

APPLYING THE THEORY OF THE PLANE IN THE CIVIL ENGINEERING FIELD

open access: yesJournal of Industrial Design and Engineering Graphics, 2017
To avoid the routine of buildings composed of classical geometric bodies, some methods used in contemporary architecture consist in: the use of intersected solids, the cutting with planes in different positions, as well as the recomposing of volumes.
Carmen Marza   +2 more
doaj   +4 more sources

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

LABORATORY STUDY RESULTS OF SOIL-CUTTING OPERATING ELEMENTS

open access: yesСельскохозяйственные машины и технологии, 2018
Studying  the wear of soil-cutting working tools in the field conditions has certain difficulties associated with the impermanence of soil properties.
I. V. Liskin   +4 more
doaj   +1 more source

On the Effect of Electron Beam Melted Ti6Al4V Part Orientations during Milling

open access: yesMetals, 2020
The machining of the electron beam melting (EBM) produced parts is a challenging task because, upon machining, different part orientations (EBM layers’ orientations) produce different surface quality even when the same machining parameters are employed ...
Abdulmajeed Dabwan   +3 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

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