Results 101 to 110 of about 214,766 (298)

Scalable MoS2/Si Photodiode Arrays From Roll‐to‐Roll Mechanical Exfoliation

open access: yesAdvanced Science, EarlyView.
A dry roll‐to‐roll route transforms mechanically exfoliated MoS2 flake networks into silicon‐integrated photodiode arrays. The MoS2/Si junctions generate photovoltaic output without applied bias, allowing illuminated pixels to locate light spots and reconstruct simple images.
Yigit Sozen   +2 more
wiley   +1 more source

Holy Rollers, Jawbox and Weatherhead concert poster, 9:30 Club, Washington D.C., December 13, 1989

open access: yes, 1989
Poster advertising a concert featuring the Washington, D.C. punk bands Holy Rollers, Weatherhead, and Jawbox at the 9:30 Club in Washington D.C.

core  

An Integrated Approach of CAD/CAM for Spatial Cam with Oscillating Cylindrical Rollers

open access: yes, 2011
In this paper, an integrated approach of CAD/CAM was presented for the spatial cam with oscillating cylindrical rollers. The relationship between the cam profiles and the meshing element’s surface is established by the conjugate surface theory.
Jeng Nan Lee   +3 more
core   +1 more source

Review of Gastrointestinal Capsule Robots: Materials, Actuation, Diagnostics, and Therapeutics

open access: yesAdvanced Science, EarlyView.
This review examines gastrointestinal capsule robots through a systems engineering lens, covering shell materials, actuation and localization strategies, diagnostic modalities, therapeutic interventions, and commercialization status. By mapping the complete technological chain from fabrication to clinical deployment, this work identifies critical gaps ...
Zengsheng Li   +8 more
wiley   +1 more source

弹性复合圆柱滚子轴承承载性能的理论研究

open access: yesJixie chuandong, 2013
According to the principle of combination and innovation,the study on structure innovation of cylindrical roller bearing is carried out,and a new method of structure design of elastic composite cylindrical roller bearing which embedded PTFE in the hollow
杨文, 姚齐水, 余江鸿, 张然
doaj  

Stochastic Entanglement of Deterministic Origami Tentacles For Robust Robotic Grasping

open access: yesAdvanced Science, EarlyView.
This study introduces an origami tentacle gripper to robustly grasp objects‐in air, underwater, and even in orbital space‐by exploiting a synergy between local, deterministic deformation programming and global, stochastic entanglements. A single origami tentacle can be designed to coil with a simple tendon pull.
Alec Boron   +4 more
wiley   +1 more source

Distribution of the axial load between the cylindrical rollers of a radial bearing

open access: yes, 2014
Усовершенствован метод расчёта осевой нагрузки между роликами цилиндрического подшипника путём построения моделей и аналитического определения угла перекоса колец при комбинированном (радиальном и осевом) нагружении подшипника и учёта деформации бортов ...
Гайдамака, Анатолий Владимирович
core  

Finite element method studies on the stability behavior of external radial loaded cylindrical shells with varying dimensions [PDF]

open access: yes, 2012
With the help of FEM and ANSYS, the influence of varying dimensions and sections, was tested on the structural behavior of cylindrical shells under external radial load. First, the theoretical concepts concerning cylindrical shells are described.
Equiza Lacabe, Javier
core  

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

Heat‐Suppressing Projection Two‐Photon Lithography Enables High‐Throughput Sub‐Micrometer Manufacturing of Biopolymer Hydrogels for Tissue Engineering

open access: yesAdvanced Science, EarlyView.
The iLEAP technique integrates high‐throughput two‐photon lithography with extrusion printing, bridging sub‐micrometer precision and macroscopic scaffold fabrication. By employing a low‐exothermic photoinitiator, it mitigates thermal damage to biopolymers and preserves bioactivity.
Qifeng Guan   +11 more
wiley   +1 more source

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