Results 151 to 160 of about 9,721 (286)

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

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

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

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

A Case Study of Applying Generative Design to Gear Wheels. [PDF]

Materials (Basel)
Virostko M, Maláková S, Kopas M, Mantič M, Kuľka J, Krenicky T, Lopot F, Petr K.   +7 more
europepmc   +1 more source

From Growing Conditions to Composite Performance: Acid‐Engineered Algerian Sisal Fibers for Sustainable Bio‐Epoxy Composites

Polymer Composites, EarlyView.
High‐Performance Sustainable Ski Core Bio‐Composite Derived from Bio‐Epoxy and Sisal Sibers Systems. ABSTRACT In pursuit of sustainable and high‐performance materials, this work investigates the potential of Algerian sisal fibers as renewable reinforcements in bio‐epoxy composites.
M. A. Kacem, R. Halimi, O. Duncan, T. Allen, M. Bodaghi   +4 more
wiley   +1 more source

Modeling and Kinematics Simulation of Elliptical Gears with Double Circular Arc Profiles

Jixie chuandong
In order to meet the requirements of variable transmission ratios and improve the bearing capacity of gear teeth, a new type of double-circular-arc tooth profile elliptical gear is proposed based on the meshing theory and the structural parameter ...
Yuan Xinmei, Yang Lizhao, Huang Tiancheng, Tang Wei   +3 more
doaj  

Design and Evaluation of a Trunk-Limb Robotic Exoskeleton for Gait Rehabilitation in Cerebral Palsy. [PDF]

Biomimetics (Basel)
Li H, Li M, Kang Z, Yu H.
europepmc   +1 more source

Involute Non-circular Gears

Transactions of the Japan Society of Mechanical Engineers, 1955
openaire   +2 more sources

Statistical evaluation of nylon chemical recycling through acidolysis

Polymer International, EarlyView.
Sustainable PA6 recycling through acidolysis enabled temperature‐driven depolymerization, modeled by regression analysis. Recycled products successfully replaced up to 30% monomer while preserving PA6 chemical composition or crystalline structure. Abstract This study focuses on the sustainability of plastics reporting the recycling of polyamide (PA ...
Diego Penzo, Bruno Godinho, Gabriele Rossignolo, Michele Modesti, Artur Ferreira, Alessandra Lorenzetti, Ana Barros‐Timmons, Nuno Gama   +7 more
wiley   +1 more source