Results 51 to 60 of about 156,265 (340)
Control of a multi-degree of freedom worktool for vibrations assisted forging [PDF]
, 2014 This paper addresses the control of a tool developed to superimpose vibrations along several directions on a piece during forging. Piezoelectric actuators are used to provide the required forces and speeds.
ABBA, Gabriel +5 more
core +4 more sources
Topologically optimised flexure hinge based XY stage
SPIE Proceedings, 2017 The purpose of this study is to develop a millimeter scale two degree of freedom planar actuation mechanism (XY stage) with flexure hinges that can generate micrometer scale motion at high frequencies. To amplify the micro scale motion in X and Y directions, two identical levers are used.
Orta, Adil Han +2 more
openaire +2 more sources
Damage Analysis of Reinforced Concrete Structures with Substandard Detailing [PDF]
, 2013 The goal of this study is to investigate seismic behaviour of existing R/C buildings designed and constructed in accordance with standards that do not meet current seismic code requirements.
ACI Committee 408 +19 more
core +1 more source
Theoretical Stiffness Modeling and Application Research of a Novel Stacked Flexure Hinge
Aerospace, 2023 This study investigates and designs a novel stacked hinge with low stiffness, large rotation angle, high strength, and length-adaptive functionality. Firstly, based on the large deformation theory of cantilever beams and relevant theories of leaf springs,
Yonghong Zhang +5 more
doaj +1 more source
Large Stroke Performance Optimization of Spatial Flexure Hinges [PDF]
Volume 6: 1st Biennial International Conference on Dynamics for Design; 14th International Conference on Advanced Vehicle Technologies, 2012 Flexure hinges inherently lose stiffness in supporting directions when deflected. In this paper a method is presented for optimizing the geometry of flexure hinges, while supporting stiffnesses are retained. These hinges are subjected to a load and deflected an angle of up to ±20°.
Wiersma, D.H. +3 more
openaire +2 more sources
A Twisted String, Flexure Hinges Approach for Design of a Wearable Haptic Thimble
Actuators, 2021 Wearable haptic devices in the shape of actuated thimbles are used to render the sense of touch in teleoperation and virtual reality scenarios. The design of similar devices has to comply with concurring requirements and constraints: lightweight and ...
D. Leonardis +3 more
semanticscholar +1 more source
FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
Design and Analysis of Power-function-sine Flexure Hinges
Jixie chuandong, 2023 In this study, a new type of power-function-sine flexure hinge is proposed. The calculation formula of compliance and rotation accuracy of the flexure hinge is derived by using Castigliano's second theorem.
Li Jiabiao +5 more
doaj
Analytical modeling of reinforced concrete columns subjected to bidirectional shear [PDF]
, 2017 Under general seismic loading, reinforced concrete columns may be subjected to lateral loads in more than one direction. Available experimental data on columns subjected to bidirectional forces indicate that higher levels of damage and a higher loss of ...
Bairán García, Jesús Miguel +2 more
core +2 more sources
Intein‐based modular chimeric antigen receptor platform for specific CD19/CD20 co‐targeting
Molecular Oncology, EarlyView.CARtein is a modular CAR platform that uses split inteins to splice antigen‐recognition modules onto a universal signaling backbone, enabling precise, scarless assembly without re‐engineering signaling domains. Deployed here against CD19 and CD20 in B‐cell malignancies, the design supports flexible multi‐antigen targeting to boost T‐cell activation and
Pablo Gonzalez‐Garcia +9 more
wiley +1 more source