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Patients with sarcopenia, who face difficulties in carrying heavy loads, may benefit from collaborative robotic assistance that is modeled after human–human interaction. The objective of this study is to describe the kinematics and spatio-temporal ...

This paper presents the modeling and numerical analysis of the Kangaroo lower body prototype, a novel bipedal humanoid robot developed and manufactured by PAL Robotics. Kangaroo features high-power linear electric actuators combined with unique ...

• Kangaroo, a novel bipedal humanoid robot with unique hybrid serial–parallel linkages.
• Kangaroo’s actuation system is based on linear actuators located in the pelvis area.
• Analysis uses constrained dynamics of hybrid serial–parallel ...

The study of moving particles (e.g. molecules, virus, vesicles, organelles, or whole cells) is crucial to decipher a plethora of cellular mechanisms within physiological and pathological conditions. Powerful live-imaging approaches enable life ...

• 4D space-time trajectory reconstruction for particle kinematics analysis.
• Nonlinear limiting technique (WENO).
• Arbitrary high order of accuracy.
• Assessment of instantaneous velocity and acceleration.
• Application to biology ...

With the help of split quaternions, rotational motion in Lorentz space can be studied. This rotation corresponds to the rotations on the hyperboloids. The aim of this study is to define and examine hyperbolic rotations in the new geometry space. ...

• We define a new quaternion that is called multiplicative hyperbolic split quaternion.
• Moreover, with the help of geometric calculus, we define geometric hyperbolic scalar and geometric product.
• We give some important theorems that ...

Facing complex non-structural environments, such as post-disaster rescue, pipeline inspection, industrial maintenance, and scientific investigation, etc., higher requirements are placed on the robot’s ability to pass through, but the existing ...

In this article, we propose a low degree-of-freedom parallel mechanism known as the 2-UPS+U parallel structure. This mechanism features a double-triangle configuration and exhibits unique structural properties, resulting in a coupled system with ...

Continuum robotic arms present themselves as a promising alternative to rigid robotic arms, offering benefits in terms of their flexibility and ability to adapt to complex workspaces. However, for these high degree-of-freedom (DoF) continuum ...

This paper introduces a 7-degrees-of-freedom (7-DoF) hand-mounted haptic device, the “HapticSpider”. It is composed of a parallel mechanism characterised by eight legs with an articulated diamond-shaped structure, in turn connected to an origami-...

This paper presents a 3-D adaptive line-of-sight (ALOS) path-following algorithm for autonomous vehicles, marine craft, and aircraft. The origins of the cross- and vertical-track errors are proven to be uniform semiglobal exponential stable (...

The execution of object-directed motor actions is known to be influenced by the intention to interact with others. In this study, we tested whether the effects of social intention on the kinematics of object-directed actions depended on whether ...

We studied the effect of social intention on object-directed actions while interacting with a human or a virtual agent.

Results showed an effect of social intention on object-directed actions when interacting with a human confederate.

No effect of ...

Social interactions are multi-modal, and their translation into virtuous and smooth interactions in digital, hybrid reality spaces constitute a technological challenge with profound but often dismissed ethical considerations (such as harmful consequences)...

The wide-scale adoption of selective apple harvesting robots is yet to be seen, due to their strict requirement of well-manicured canopies to perform reliably. However, maintaining this standard of canopy is labour and resource-intensive, and an ...

• An apple harvesting robot presented can harvest apples in complex canopies.
• A comprehensive planner allows the robot to navigate unstructured environments.
• A median cycle time of 9.18 s is achieved at a success rate of 62.8%.
• ...

In this article, the mechanical design and analysis of a novel three-legged, agile robot with passively compliant 4-degrees-of-freedom legs, comprising a hybrid topology of serial, planar and spherical parallel structures, is presented. The design ...

Virtual reality (VR) offers possibilities for Science, Technology, Engineering, and Mathematics education by facilitating the understanding of abstract concepts. In this work, we designed, developed, and tested an immersive VR serious game—ORUN-VR—...

Robot workspace and Manipulability analysis are essential for choosing the most optimum robot and planning the Toolpath for a particular task. Standard industrial robots can be modified to increase their workspace and overall Manipulability by moving ...

There has been a lot of work going on in the area of legged robotics, which involves design, dynamics, control and learning. Still, these robots are not comparable to human-like locomotion. Bionic legged robots have been developed to increase robots’ ...

Wrist movement and rotational stiffness determine the flexibility of the human hand, which are also critical in skillful manipulation scenarios. But few rotational stiffness extraction mechanisms can adjust based on the hand lengths of subjects. ...

In recent years, the design and fabrication of nanomachines have obtained many significant achievements due to the development of chemical synthesis and bottom-up self-assembly. The rise of DNA nanomachines is one of the essential proceedings that ...

Patients with lumbar injuries are becoming more common and there is a shortage of intelligent rehabilitation equipment. A wearable lumbar rehabilitation robot for the treatment of low back pain disease is designed to help patients recover their ...

This paper presents a 6-DOF hydraulic manipulator for replacing the disc cutters in the confined space of a TBM. Firstly, the mechanism design of the manipulator is briefly introduced, and the kinematics coordinate system is built based on the D-H ...