Results 51 to 60 of about 4,803 (295)

Triaxial Ellipsoidal Quantum Billiards [PDF]

open access: yesAnnals of Physics, 1999
The classical mechanics, exact quantum mechanics and semiclassical quantum mechanics of the billiard in the triaxial ellipsoid is investigated. The system is separable in ellipsoidal coordinates. A smooth description of the motion is given in terms of a geodesic flow on a solid torus, which is a fourfold cover of the interior of the ellipsoid.
Waalkens, H, Wiersig, J, Dullin, HR
openaire   +4 more sources

Triaxiality and rotational bands in 133ce

open access: yes, 2021
>Magister Scientiae - MScThe neutron-de cient nuclei between the N = 50 and N = 82 shell closures provide rich information on the shape and structure of the nucleus. The isotones of 133Ce and 131Ba (N = 75) lie in this region of the nuclear chart.
Wakudyanaye, Ignasio
core   +1 more source

A Superlubricated Magnetically Steerable Microcatheter with Integrated Optical and Fluidic Channels

open access: yesAdvanced Robotics Research, EarlyView.
A magnetically steerable microcatheter with integrated optical and fluidic channels is developed for multifunctional navigation in tortuous anatomical environments. A surface‐grafted hydrogel coating enables low‐friction actuation. The device demonstrates stable light and fluid delivery during magnetic manipulation, offering a compact platform for ...
Yuntian Du   +5 more
wiley   +1 more source

Influence of the Lode parameter and the stress triaxiality on the failure of elasto-plastic porous materials [PDF]

open access: yes, 2012
International audienceThis work makes use of a recently developed ''second-order'' homogenization model to investigate failure in porous elasto-plastic solids under general triaxial loading conditions.
Danas, Kostas, Ponte Castañeda, Pedro
core   +2 more sources

Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots

open access: yesAdvanced Robotics Research, EarlyView.
This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou   +4 more
wiley   +1 more source

Intelligent Micro/Nanorobots for Targeted Interventional Therapy: From Bench to Clinic

open access: yesAdvanced Robotics Research, EarlyView.
Zirui Zhang et al. reviewed the application and challenges of mobile nanomachines in interventional therapy. By converting exogenous energy, including chemical, magnetic, optical, and ultrasonic sources, into mechanical forces, micro/nanorobots (MNRs) enable precise actuation at unprecedented scales. Evolving far beyond traditional drug delivery, these
Zirui Zhang   +5 more
wiley   +1 more source

Modification of the Bonora Damage Model for shear failure

open access: yesFracture and Structural Integrity, 2018
The Bonora damage model was extended to account for shear-controlled damage. To this purpose, a new definition for the damage dissipation potential in which an explicit dependence on the third invariant of deviatoric stress was proposed.
Nicola Bonora   +4 more
doaj  

Different triaxial shapes in the energy spectra of 154Sm

open access: yesPhysics Letters B
The 154Sm nucleus, which has long been regarded as a typical quantum system exhibiting axial symmetry, has been recently suggested to exhibit a small degree of triaxiality by Otsuka et al.. This small triaxiality was recently observed through the γ decay
Chun-Xiao Zhou, Xue Shang, Tao Wang
doaj   +1 more source

EndoTac: An Endoscopic Camera‐Based Tactile Sensor with High Sensitivity for Minimally Invasive Surgery

open access: yesAdvanced Science, EarlyView.
EndoTac presents a trocar‐compatible endoscopic vision‐based tactile sensor that uses a convex mirror to enlarge side‐facing tactile coverage during minimally invasive vessel palpation. Distorted tactile images are unwarped and processed by a learning model to estimate vascular deformation, enabling sensitive, spatially distributed tactile perception ...
Yupeng Wang   +5 more
wiley   +1 more source

Influence of Strain and Stress Triaxiality on the Fracture Behavior of GB 35CrMo Steel during Hot Tensile Testing

open access: yesAdvances in Materials Science and Engineering, 2018
To better understand cavitation nucleation and crack initiation in 35CrMo steel during high-temperature tensile processing and the effect of stress triaxiality on its fracture behaviors, uniaxial and notch high-temperature tensile tests were performed ...
Zheng Li, Yajun Zhou, Sanxing Wang
doaj   +1 more source

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