Results 71 to 80 of about 1,102 (261)
THE CAM SYNTHESIS AND DIMENSIONALLY OPTIMISATION OF A VALVE TIMING MECHANISM WITH CONTINUOUS VALVE LIFT [PDF]
Fiabilitate şi Durabilitate, 2011 An innovating solution for throttle-free load control for spark-ignition engines is variable valve timing system. In this paper is presented a cam synthesis and optimization, using the analytic method, of the valve timing mechanism with three elements ...
Stelian MIHALCEA, Nicolae PANDREA,
doaj
An Accessible Microfluidic Platform for the Generation of Polarized Brain Organoids
Advanced Materials Technologies, EarlyView.This study presents an accessible double‐gradient microfluidic device that enables controlled morphogen delivery and spatially polarized differentiation in brain organoids. By integrating a pump‐free design and stable fabrication method, the platform generates dorsal–ventral neuronal asymmetry, offering a reproducible and versatile approach to model ...
Daniel Pérez‐Calixto +6 more
wiley +1 more source
Study on the protection efficiency of water hammer by non-slam air valve
工程科学与技术, 2011 :In order to study the protection efficiency of water hammer by non-slam air valve, a mathematical model of non-slam air valve was set up based on the mathematical model of conventional air valve and the working principles of non-slam air valve. Solution
柯勰, Hu Yun-jin
doaj
Advanced Materials Technologies, EarlyView.Aerosol Jet Printing (AJP) has emerged as a versatile additive manufacturing technique for high‐resolution, conformal, and multi‐material printing. This review highlights advances in printable materials, substrate compatibility, post‐processing, characterization, and process innovations, while critically discussing current challenges and future ...
Chandrachur Chatterjee +2 more
wiley +1 more source
Waveguide Geometry–Driven Trade‐Offs in Resonant Cavity Sensor Performance
Advanced Optical Materials, EarlyView.Waveguide geometry governs the interplay between sensitivity, intrinsic Q‐factor, and wavelength noise in silicon nitride resonant sensors. Contrary to intuition, higher sensitivity does not ensure superior performance. Low‐noise, high‐Q ridge resonators achieve the lowest detection limits, revealing that detection is ultimately constrained by noise ...
Mohammad Talebi Khoshmehr +6 more
wiley +1 more source
Visualization of flow phenomena in hydraulic throttle valves of plastics
MATEC Web of Conferences, 2018 Using elements made of plastics in hydraulic drives and controls encounters problems, for example related to strength. However, the advantage of solutions with plastics manifests itself, among others in possibility of shaping hydraulic elements in ...
Banaś Michał +3 more
doaj +1 more source
Soft Robotic Snake with Tunable Undulatory Gait for Efficient Underwater Locomotion
Advanced Robotics Research, EarlyView.This study designs an underwater soft snake robot using 3D‐printed soft actuators, controlled by specific signals to generate sinusoidal undulation. Results show a positive correlation between speed and swing amplitude, with optimal performance at 2/3π phase offset, PLA tail, 1.2 voltage growth rate, and 6s undulation period achieving a maximum speed ...
Huichen Ma, Junjie Zhou, Raye Yeow
wiley +1 more source
Case Studies in Thermal EngineeringTo the users, low-temperature adiabatic compressed air energy storage is a promising technology for energy storage. In this work, the parameter selection method of a 200 kW scale CAES system are studied.
Fengyu Li, Yueping Yu
doaj +1 more source
Auto‐Routing Fluidic Printed Circuit Boards
Advanced Robotics Research, EarlyView.This work introduces (STREAM) software tool for routing efficiently advanced macrofluidics, an open‐source software tool for automating the design of 3D‐printable fluidic circuit boards. STREAM streamlines tube routing and layout, enabling the rapid fabrication of fluidic networks for soft robotics, lab‐on‐a‐chip devices, microfluidics, and biohybrid ...
Savita V. Kendre +3 more
wiley +1 more source
Improvement of Sleeve for Gas Axial Flow Regulating Valve and Analysis of Flow Field Characteristics
Journal of Applied MathematicsThe research on the gas axial flow regulating valve is one of the key tasks for the localization of critical valves in natural gas pipelines. With the main purpose of improving the design of the sleeve of the gas axial flow regulating valve, numerical ...
Xiuqin Gu +4 more
doaj +1 more source