Results 51 to 60 of about 106,319 (304)

Polymerized LB films imaged with a combined atomic force microscope-fluorescence microscope [PDF]

open access: yes, 1992
The first results obtained with a new stand-alone atomic force microscope (AFM) integrated with a standard Zeiss optical fluorescence microscope are presented.
Gaub, Hermann E.   +3 more
core   +2 more sources

Hands‐on protocol for preparing water‐soluble fractions from agri‐food samples for NMR‐based metabolomics analysis

open access: yesFEBS Open Bio, EarlyView.
This research protocol outlines a workflow for nuclear magnetic resonance (NMR)‐based metabolomics in the agri‐food sector. Using two case studies—strawberry leaves (solid matrix) and wine (liquid matrix)—it details the procedures for sample preparation, data acquisition, and processing.
Andrea Fernández‐Veloso   +4 more
wiley   +1 more source

Influence of skewing design for reduction of force ripples in DSL-SynRM using 3D FEA

open access: yesCES Transactions on Electrical Machines and Systems, 2019
Double Sided Linear Synchronous Reluctance Motors (DSL-SynRM) are being increasingly used in high force density applications. The force ripples are one of the major issue in machine which is due to nonlinear nature of current in the machines.
Anusha Vadde, B. Sudha
doaj   +1 more source

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

open access: yesFEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Research on typical topologies of a tubular horizontal-gap passive magnetic levitation vibration isolator

open access: yesMATEC Web of Conferences, 2017
Magnetic levitation vibration isolators have attracted more and more attention in the field of high-precision measuring and machining equipment. In this paper, we describe a tubular horizontal-gap passive magnetic levitation vibration isolator.
Zhou Yiheng   +4 more
doaj   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei   +3 more
wiley   +1 more source

Design of a Rotary-Linear Motor With Unipolar SPM and Voice Coil Structure

open access: yesIEEE Access, 2020
In this article, a rotary-linear motor that achieves rotary and linear motions with a simple one-air-gap structure, low rotary ripple, and smooth linear force is proposed. The proposed motor combines a five-phase unipolar surface-mounted permanent-magnet
Fuzhen Xing, Byung-Il Kwon
doaj   +1 more source

Coordinated suppression commutation torque ripple for brushless DC motor with commutation time

open access: yesIET Electric Power Applications, 2023
A commutation torque ripple suppression strategy for the brushless DC motor (BLDCM) with commutation time is proposed. First, a torque model considering back electromotive force (back‐EMF) variation is presented, and the cause of commutation torque ...
Zhongxin Wan   +3 more
doaj   +1 more source

Numerical Simulation on Electromagnetic Energy Harvester Oscillated by Speed Ripple of AC Motors

open access: yesEnergies, 2023
The suppression of torque ripples in an interior permanent magnet synchronous motor (IPMSM) is essential to improve its efficiency and responsiveness. Here, we report on the development of an electromagnetic energy harvester incorporated into an IPMSM to
Masayuki Kato
doaj   +1 more source

Permanent-magnet brushless machines with unequal tooth widths and similar slot and pole numbers [PDF]

open access: yes, 2005
This paper presents a comparative study of three-phase permanent-magnet brushless machines in which the slot and pole numbers are similar, with reference to conventional brushless dc machines in which the ratio of the slot number to pole number is ...
Howe, D., Ishak, D., Zhu, Z.Q.
core   +1 more source

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