Results 11 to 20 of about 4,709 (265)

MESHING THEORY ANALYSIS OF THE MODIFIED ROLLER ENVELOPING HOURGLASS WORM DRIVE

open access: yesJixie qiangdu, 2022
Based on the modification of the single-roller-enveloped toroidal meshing worm drive, a parabolic modified roller-enveloped toroidal meshing worm drive is obtained.
QI Yan   +4 more
doaj  

Meshing Theory Analysis of Parallel Inclined Double Roller Enveloping Hourglass Worm Drive

open access: yesJixie chuandong, 2021
Based on the modification of single roller enveloping hourglass worm drive, a new type of worm drive, parallel inclined double roller enveloping hourglass worm drive is proposed.
Honghui Liao   +3 more
doaj  

Meshing performance investigations on face worm gear drive with the variable worm cone angle

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2023
This article aims to reveal the meshing performance on face worm gear drive with the variable worm cone angle and to verify the feasibility of using a cylindrical worm as a replacement for the spiroid worm in face worm gear drive.
Weixin XIAN   +4 more
doaj   +1 more source

Kinematic Characteristic Analysis of Hypoid Gear based on Two Kinds of Eigenfunction

open access: yesJixie chuandong, 2021
Based on the classical space meshing theory, two kinds of basic eigenfunctions and eigenvectors of conjugate surfaces are defined. The function of the two kinds of eigenfunctions in the analysis of the meshing characteristics of conjugate surfaces is ...
Bingyang Wei   +3 more
doaj  

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

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

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

open access: yesFEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto   +3 more
wiley   +1 more source

Fabrication and characteristics of mesh band-pass filters [PDF]

open access: yesInstruments and Experimental Techniques, 2009
Mesh band-pass filters for 300-, 450-, 600-, and 750-GHz central frequencies are designed and manufactured. Copper and aluminum foil and foil-clad Teflon filters were made by chemical and ionic etching methods, and an aluminum film evaporated on a kapton film was formed by the lift-off lithography method.
M. A. Tarasov   +4 more
openaire   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

Service provision with autonomic characteristics in mesh environment [PDF]

open access: yes, 2021
Η παρούσα διδακτορική διατριβή εστιάζει στο πεδίο των υπηρεσιών σε κινητούς ομότιμους κόμβους. Πιο συγκεκριμένα, στα πλαίσια της διατριβής προτείνεται μια αρχιτεκτονική και αναλύεται μια υλοποίηση ενός Κατανεμημένου Πίνακα Κατακερματισμού (Distributed Hash Table-DHT) η οποία είναι ικανή να λειτουργήσει χωρίς καμία κεντρικοποίηση.
openaire   +1 more source

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