Results 21 to 30 of about 2,796 (234)
Directional Bias in Molecular Photogearing Evidenced by LED‐Coupled Chiral Cryo‐HPLC
Angewandte Chemie, Volume 136, Issue 38, September 16, 2024.Significant directionality bias for the coupled rotations of a light‐powered molecular photogear is evidenced by analysis of its enantiomeric states. Using a custom designed LED‐coupled chiral cryo‐HPLC setup, the sense of directionality of coupled double‐ and single bond rotations during photogearing could be elucidated directly.
Frederik Gnannt +4 more
wiley +2 more sources
Hydraulic In Vitro Characterization of MR‐Conditional Blood Pumps
Artificial Organs, Volume 50, Issue 3, Page 393-403, March 2026.Cardiac surgery in neonates requires close placement of cardiopulmonary bypass machines due to limited blood volume, complicating MR compatibility. This study introduces three MR‐conditional blood pump prototypes. None interfered with MRI imaging, though RF‐related sensor effects remain untested.
Dominik T. Schulte +6 more
wiley +1 more source
Jixie chuandong, 2023 In this study, milling large wheels for spiral bevel gears by the profile method, the effect of cutting speed, depth of cutting and feed rate on the residual stress on the machined surface is studied.
Wang Hao, Zhang Fengshou, Jiang Chuang
doaj
Growth of Subsurface Fatigue Fractures in Large‐Size Bevel Gears
Fatigue &Fracture of Engineering Materials &Structures, Volume 49, Issue 2, Page 640-652, February 2026.ABSTRACT Large‐size bevel gears are commonly used in marine industry for the applications of propulsion, such as azimuth thrusters. The gears are typically designed for specific use, as they are directly transferring power from one component to another.
Erkka Pentti Kasper Virtanen +4 more
wiley +1 more source
Bioinspired Light‐Driven Organic Rotary Molecular Systems
ChemistryEurope, Volume 4, Issue 1, January 2026.This review explores the evolution of bioinspired light‐driven rotary molecular systems (RMSs), highlighting the integration of natural chromophore‐based fragments to enhance quantum efficiency, photostability, and biocompatibility. Key strategies to optimize photochemical performance and broaden functional applications are discussed, providing a ...
Lidia Hortigüela, Sara P. Morcillo
wiley +1 more source
Low‐Complexity Robotic Device for Magnetic Resonance Imaging‐Guided Needle Biopsy
The International Journal of Medical Robotics and Computer Assisted Surgery, Volume 21, Issue 6, December 2025.ABSTRACT Background This work presents a low‐complexity robotic device for needle‐to‐target alignment designed to streamline Magnetic Resonance Imaging (MRI)‐guided biopsy procedures while maintaining physician control over insertion. Methods The robotic device was designed with a rigid frame incorporating two linear degrees of freedom for the in‐plane
Anastasia Antoniou +8 more
wiley +1 more source
Effects of Geometry Design Parameters on the Static Strength and Dynamics for Spiral Bevel Gear
International Journal of Rotating Machinery, 2017 Considering the geometry design parameters, a quasi-static mesh model of spiral bevel gears was established and the mesh characteristics were computed. Considering the time-varying effects of mesh points, mesh force, line-of-action vector, mesh stiffness,
Zhiheng Feng, Chaosheng Song
doaj +1 more source
Recent Manufacturing Advances for Spiral Bevel Gears [PDF]
SAE Technical Paper Series, 1991 <div class="htmlview paragraph">The U.S. Army Aviation Systems Command (AVSCOM), through the Propulsion Directorate at NASA Lewis Research Center, has recently sponsored projects to advance the manufacturing process for spiral bevel gears. This type of gear is a critical component in rotary-wing propulsion systems.
Robert F. Handschuh, Robert C. Bill
openaire +1 more source
Crack Propagation in Tooth Root: A Comparison Between Pulsator Test and Running Gears
Fatigue &Fracture of Engineering Materials &Structures, Volume 48, Issue 12, Page 5181-5194, December 2025.ABSTRACT Tooth root fatigue fracture is a critical gear failure mode in which the tooth root breaks because of the repetition of bending load. The most widely adopted procedure for evaluating root strength is through pulsator testing. However, this test method does not present gears in meshing conditions. When focusing on the limited‐life region of the
Luca Bonaiti +5 more
wiley +1 more source
MathematicsSpiral bevel gear drives are widely used in mechanical transmission devices due to their compact structure, smooth transmission, and cost-effectiveness. With the continuous improvement in mechanical product quality, higher and higher requirements are set
Chong Tian, Taiyong Wang, Ying Tian
doaj +1 more source