Results 81 to 90 of about 33,423 (302)
Computation of parallel link manipulator dynamics
Proceedings of IECON '93 - 19th Annual Conference of IEEE Industrial Electronics, 1994 This paper proposes an algorithm, for calculating the inverse dynamics of link manipulators. First, we derive a method to calculate the inverse dynamics of a general type of parallel link mechanism using the method proposed by Luh and Zeng., which is developed for a simple closed link mechanism and yields the inverse dynamics of the simple closed link ...
Kazuhiro Kosuge +5 more
openaire +2 more sources
Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment
Molecular Oncology, EarlyView.This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley +1 more source
Extra modes of operation and self motions in manipulators designed for Schoenflies motion
, 2015 We study 4-UPU parallel manipulators performing Schoenflies motion and show that they can have extra modes of operation with 3 degrees of freedom, depending on the geometric parameters of the manipulators.
Coste, Michel, Demdah, Kartoue Mady
core +3 more sources
Molecular Oncology, EarlyView.Meta‐transcriptome analysis identified FGF19 as a peptide enteroendocrine hormone associated with colorectal cancer prognosis. In vivo xenograft models showed release of FGF19 into the blood at levels that correlated with tumor volumes. Tumoral‐FGF19 altered murine liver metabolism through FGFR4, thereby reducing bile acid synthesis and increasing ...
Jordan M. Beardsley +5 more
wiley +1 more source
Kinematic Characteristics of 3-UPU Parallel Manipulator in Singularity and Its Application
International Journal of Advanced Robotic Systems, 2011 This paper focuses on the kinematic characteristics of the 3‐UPU (universal‐prismatic‐ universal) parallel manipulator in one of singular configurations.
Peng Binbin, Li Zengming, Wu Kai, Sun Yu
doaj +2 more sources
, 2008 This paper demonstrates that any general 3-DOF three-legged planar parallel robot with extensible legs can change assembly modes without passing through parallel singularities (configurations where the mobile platform loses its stiffness).
Bonev, Ilian +3 more
core
Positioning Control of Pneumatic Parallel Manipulator.
Journal of the Robotics Society of Japan, 1997 This paper describes one of the control methods which attain robust motion control performances of parallel manipulator. We used pneumatic cylinders as a driving actuator, focusing on air compressibility valid for the minute force control and impact absorption in environmental contact.
Masahiro Takaiwa, Toshiro Noritsugu
openaire +2 more sources
Molecular Oncology, EarlyView.Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson +9 more
wiley +1 more source
RIPK4 function interferes with melanoma cell adhesion and metastasis
Molecular Oncology, EarlyView.RIPK4 promotes melanoma growth and spread. RIPK4 levels increase as skin lesions progress to melanoma. CRISPR/Cas9‐mediated deletion of RIPK4 causes melanoma cells to form less compact spheroids, reduces their migratory and invasive abilities and limits tumour growth and dissemination in mouse models.
Norbert Wronski +9 more
wiley +1 more source
Jixie chuandong, 2008 At singularities, the parallel manipulator will have more than one the motion trends. So the parallel manipulator will lose control. Based on the bifurcation characteristics of a parallel manipulator at singularities, a new method to estimate the losing ...
郭瑞琴
doaj