Results 111 to 120 of about 1,301 (252)

Research on Meshing Principle and Active Design Method of Uniform-variable Gear Drive

Jixie chuandong, 2019
In paper-transferring mechanism with variable speeds and textile machines，the driven gear are required to output multifarious motions when the driving gear rotates for 1 cycle. A new gear drive，called uniform-variable gear is proposed.
Jian Wang, Jianming Fan, Yong Feng
doaj  

Optically Bound Rapid Plasmonic Nanorod Dimers: Anisotropic Dynamics Driven by Light‐Fluidic Cooperation

Laser &Photonics Reviews, EarlyView.
Optically confined gold nanorods exhibit cooperative light‐driven dynamics, forming mobile end‐to‐end dimers with orientation‐dependent propulsion. Using structured laser traps and an opto‐thermo‐hydrodynamic model, we uncover how optical binding, polarization‐induced torque, and near‐surface hydrodynamics govern their motion.
José A. Rodrigo, Tatiana Alieva
wiley   +1 more source

Structural and Technological Aspects of Improving the Accuracy of Worm Gears in the Processes of Design, Manufacturing, and Assembly. [PDF]

Materials (Basel)
Kacalak W, Ponomarenkow J, Tandecka K, Majewski M, Budniak Z.   +4 more
europepmc   +1 more source

Rigorous Electromagnetic Quasinormal‐Mode Method Made Easy for Users

Laser &Photonics Reviews, EarlyView.
We present a method that combines numerical techniques with accurate approximations to enable simple and ultrafast computations of the scattered field based on quasinormal modes expansions. The method is made available in the open‐source package MANlite implemented within COMSOL.
Tong Wu, Philippe Lalanne
wiley   +1 more source

Research Study Concerning the Structural Design of a Drone Using 3D Print Technology

Macromolecular Symposia, EarlyView.
ABSTRACT The frame of a drone serves as support to hold in place all the key components of the drone, such as the battery, controller board, motors, and all the modules needed for different projects. In the industry, the drone frame is CNC machined from a block of material, or in some cases it is made of composite materials, carbon fiber, and ...
Gabriel George Geambaşu, Ionel Simion, Ioana‐Cătălina Enache   +2 more
wiley   +1 more source

A strength reliability calculation method of tip relief gears. [PDF]

PLoS One
Wang H, Xiao J, Yin L, Hu B, Liu H.
europepmc   +1 more source

Detecting Loosening of Bolt‐Flanged Pipe Using Smoothed Pseudo Wigner–Ville Distribution: Digital Twin‐Based Approach Using Convolution Neural Networks

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT In this paper, an integrated digital twin‐based fault‐diagnosis framework is proposed to detect bolt loosening in flanged pipe connections. The approach combines finite element‐based numerical modeling, experimental modal analysis, and advanced signal processing‐assisted deep learning to achieve reliable loosening detection under operational ...
Milad Shabani Yousefabad, Behzad Totakhaneh Bonab, Morteza Homayoun Sadeghi, Mir Mohammad Ettefagh, Mohammad Reza Chalak Qazani   +4 more
wiley   +1 more source

Active Metamaterials with Tunable Shear Nonreciprocity and Nonlinear Dynamics. [PDF]

Adv Sci (Weinh)
Fang X, Yu M, Yu D, Cheng L.
europepmc   +1 more source

Diet and Oral Health of Scythian Populations in Ukraine (700–200 bce): Evidence for Grain Consumption and Food Processing

International Journal of Osteoarchaeology, EarlyView.
ABSTRACT We examined whether Scythian‐era populations living in different ecological zones had distinctive oral health patterns during the Iron Age. Our interdisciplinary approach should clarify whether these populations had different diets or behavioral practices.
Teresa Runge, James A. Johnson, Sergey Makhortykh, Ludmilla Litvinova, Svetlana Andrukh, Gennady Toschev, Alicia R. Ventresca‐Miller   +6 more
wiley   +1 more source

ASW-YOLO: Lightweight Gear Defect Detection with Improved YOLOv8n. [PDF]

Materials (Basel)
Luo Z, Zheng B.
europepmc   +1 more source