Results 111 to 120 of about 33,400 (300)
Jixie chuandong, 2000 In order to enrich mechanism models of spatial parallel manipulators, two novel models of 3-DOF parallel manipulators are presented. One of them is composed of two CRR limbs and one SPS limb, another is composed of two CPR limbs and one SPS limb.
赵铁石, 黄真
doaj
A design oriented study for 3R Orthogonal Manipulators With Geometric Simplifications [PDF]
, 2007 This paper proposes a method to calculate the largest Regular Dextrous Workspace (RDW) of some types of three-revolute orthogonal manipulators that have at least one of their DH parameters equal to zero.
Chablat, Damien +2 more
core +2 more sources
Nuclear pore links Fob1‐dependent rDNA damage relocation to lifespan control
FEBS Open Bio, EarlyView.Damaged rDNA accumulates at a specific perinuclear interface that couples nucleolar escape with nuclear envelope association. Nuclear pores at this site help inhibit Fob1‐induced rDNA instability. This spatial organization of damage handling supports a functional link between nuclear architecture, rDNA stability, and replicative lifespan in yeast.
Yamato Okada +5 more
wiley +1 more source
A novel design for a hybrid space manipulator [PDF]
Described are the structural design, kinematics, and characteristics of a robot manipulator for space applications and use as an articulate and powerful space shuttle manipulator.
Shahinpoor, MO
core +1 more source
FEBS 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
Aging and Cancer, EarlyView.Aging‐associated physiological and molecular alterations pose significant challenges in cancer management among India's elderly. Limited geriatric oncology expertise, financial constraints, and inadequate specialized care exacerbate disparities. Strategic expansion of insurance coverage, integration of palliative care, and infrastructural advancements ...
Nihanthy D. Sreenath +3 more
wiley +1 more source
Design and Analysis of a Spatial 3-DOF Parallel Manipulator with 2T1R-Type
International Journal of Advanced Robotic Systems, 2013 A novel asymmetrical spatial parallel manipulator with three degrees of freedom is proposed. The moving platform of the manipulator has two-translational and one-rotational (2T1R) DOFs with respect to the fixed base. Two other manipulators with platforms
Yanbin Zhang, Kwun-Lon Ting
doaj +1 more source
Kinematics and Workspace Analysis of a Three-Axis Parallel Manipulator: the Orthoglide [PDF]
, 2006 The paper addresses kinematic and geometrical aspects of the Orthoglide, a three-DOF parallel mechanism. This machine consists of three fixed linear joints, which are mounted orthogonally, three identical legs and a mobile platform, which moves in the ...
Chablat, Damien +2 more
core +2 more sources
Symbolic Elimination for Parallel Manipulators
, 1996 The forward kinematics problem of parallel robot consists in computing the position of a solid moving in the three-dimensional space with six points on it constrained to lie respectively on six given spheres. This problem can also be represented by a system of algebraic equations, and it is known to admit at most 40 complex solutions.
Tancredi, Luc +2 more
openaire +2 more sources
The Aging Blood: Cellular Origins, Circulating Drivers, and Therapeutic Potential
Aging and Cancer, EarlyView.As a conduit linking all organs, the blood system both reflects and actively drives systemic aging. This review highlights how circulating pro‐aging and antiaging factors and age‐associated hematopoietic stem cell dysfunction contribute to immunosenescence and multi‐organ decline, positioning the hematopoietic system as a target for aging intervention.
Hanqing He, Jianwei Wang
wiley +1 more source