Results 111 to 120 of about 1,427,145 (313)

Development of low frequencies, insulating thick diaphragms for power MEMS applications

open access: yes, 2012
Major challenges of micro thermal machines are the thermal insulation and mechanical tolerance in the case of sliding piston. Switching from piston to membrane in microengines can alleviate the latest and lead to planar architectures.
Badel, Adrien   +2 more
core   +4 more sources

Poly(vinylidene Fluoride)‐Based Ferroelectric Polymers for Electromechanical Transduction: A Systematic Review of Materials and Actuators

open access: yesAdvanced Intelligent Systems, EarlyView.
Poly(vinylidene fluoride) (PVDF)‐based ferroelectric materials exhibit high strains, energy densities and coupling efficiencies, appealing for diverse applications requiring smart material actuators. This work reviews electromechanical transduction in PVDF‐based polymers and their modifications, implementation in actuators, and functional devices ...
Giulio Gallucci, Andres Hunt
wiley   +1 more source

Severe, Non‐apneic Respiratory Dysfunction and Hypoxia following Generalized Convulsive Seizures

open access: yesAnnals of Neurology, EarlyView.
Objective Sudden unexpected death in epilepsy (SUDEP) is a devastating consequence of some generalized convulsive seizures (GCS). Recent work has focused on seizure related apnea as a biomarker of SUDEP risk, frequently without characterizing the adequacy of non‐apneic ventilation or identifying other dysfunctional breathing patterns.
Haley E. Pysick   +9 more
wiley   +1 more source

Drag effects in the system of electrons and microcavity polaritons

open access: yes, 2010
The theory of the drag effects in the system of spatially separated electrons and excitons in coupled quantum wells (QW) embedded in an optical microcavity is developed.
Berman, Oleg L.   +2 more
core   +1 more source

Innovative Approach to Hydrogen Purification: A Review on the Role of Metal Hydrides

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Metal hydrides, renowned for their unique hydrogen bonding capabilities, have emerged as pivotal materials in the energy sector, particularly for hydrogen storage and purification applications. Their ability to store hydrogen reversibly under moderate conditions has positioned them at the forefront in hydrogen‐based energy systems. This review
T. Mohammed Faheem   +4 more
wiley   +1 more source

Fiber‐type soft bioelectronics for wearable and implantable sensing and therapy

open access: yesBMEMat, EarlyView.
Fiber‐type soft bioelectronics are emerging as versatile platforms for wearable and implantable health monitoring and therapeutic applications. These bioelectronics use organic and inorganic matrices combined with advanced fillers, which feature high conductivity, electrochemical sensitivity, softness, and biocompatibility.
Haneul Kim   +5 more
wiley   +1 more source

Advances in Triboelectric Nanogenerators With Rotating Structure

open access: yesCarbon Energy, EarlyView.
The rotating TENG has been widely studied for its superiorities of simple structure, high efficiency, and stable output. This review introduced the four different principles of rotating TENG and offered a thorough summary for performance and application research through three‐level classification. Importantly, the current existing problems, challenges,
Chuguo Zhang   +4 more
wiley   +1 more source

Fatigue Strength Analysis of the High-speed Diaphragm Sun-gear Shaft

open access: yesJixie chuandong, 2019
The diaphragm coupling has used making up for the micro displacement and angular deviation between input and output terminals by elastic deformation of its geometric shape, the loading effects caused by centrifugal force, axial deformation and torque is ...
Xiaopeng Wang   +3 more
doaj  

Experimental study on impact coupling characteristics of high-pressure accumulator for unconstant-pressurized chamber rock drills

open access: yesAdvances in Mechanical Engineering
In order to improve the efficiency of unconstant-pressurized chamber rock drills in large-hole and hard-rock conditions, the coupling characteristics of high-pressure accumulator and the impact system were analyzed.
Xiang Tian   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy