Results 111 to 120 of about 10,294 (296)

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Analysis of the Design Space and Dexterity of a Planar Two Degree of Freedom Parallel Manipulator

open access: yesJixie chuandong, 2015
A novel planar two degree of freedom parallel manipulator is presented,its moving platform of the manipulator has smaller inertia and the output of the manipulator is planar translational motion.Unlike the traditional optimum analysis method,not only the
Wang Bing, Nie Xumeng, Han Shukui
doaj  

Pose Planning for the Feed Support System of FAST

open access: yesAdvances in Mechanical Engineering, 2014
A six-cable driven parallel manipulator and an A-B rotator in the feed support system of the Five-hundred-meter Aperture Spherical radio Telescope (FAST) are adopted for realizing the position and pose of nine feeds.
Rui Yao   +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

Force/Position Hybrid Control of 6PUS-UPU Redundant Driven Parallel Manipulator Based on 2-DOF Internal Model Control

open access: yesJournal of Control Science and Engineering, 2014
To improve control performance of parallel manipulator, servo control is optimized according to 2-DOF control with Internal Model Control. Position loop of the controller is redesigned based on the original current loop and speed loop.
Kuijing Zheng, Chao Wang
doaj   +1 more source

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

open access: yesFEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill   +4 more
wiley   +1 more source

Development of Plotter Using Parallel Manipulator [PDF]

open access: yes, 2018
To overcome the workspace and load carring capacity limitation of serial manipulator development of parallel manipulator is required. Parallel manipulator have Better stiffness and payload, higher natural frequencies and accuracy, more convenient ...
Khandagale, Sudarshan, R, Prasanth Kumar
core  

Systemic dysregulation of apolipoproteins in amyotrophic lateral sclerosis serum

open access: yesFEBS Open Bio, EarlyView.
Amyotrophic lateral sclerosis (ALS) is a fatal disease that damages motor neurons. This study found that people with ALS show significant changes in blood fats and the proteins that carry them. Several apolipoproteins were higher, lipid balances were altered, and normal protein–lipid relationships were disrupted.
Finula I. Isik   +6 more
wiley   +1 more source

Modelagem e otimização de forças e torques aplicados por robôs com redundância cinemática e de atuação em contato com o meio [PDF]

open access: yes, 2011
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2011O aumento da complexidade das tarefas de robôs industriais e a expansão da utilização de robôs de serviço ...
Weihmann, Lucas
core  

Cartesian Stiffness Matrix Mapping of a Translational Parallel Mechanism with Elastic Joints

open access: yesInternational Journal of Advanced Robotic Systems, 2012
This paper is devoted to calculating the Cartesian stiffness matrix of a translational parallel manipulator with elastic joints. The calculation takes into account the contribution of the Jacobian variation because of the change of manipulator ...
Maurizio Ruggiu
doaj   +1 more source

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