Results 131 to 140 of about 423,504 (295)

Contra-rotating marine current turbines : single point tethered floating system - stabilty and performance [PDF]

open access: yes, 2009
The Energy Systems Research Unit within the Department of Mechanical Engineering at the University of Strathclyde has developed a novel contra-rotating tidal turbine (CoRMaT). A series of tank and sea tests have led to the development and deployment of a
Clarke, Joseph Andrew   +4 more
core  

Benchtop Fabrication and Integration of Laser‐Induced Graphene Strain Gauges and Stimulation Electrodes in Muscle on a Chip Devices

open access: yesAdvanced Functional Materials, Volume 35, Issue 13, March 25, 2025.
Laser‐induced graphene (LIG) is patterned on polyimide films and then transferred into thin layers of polydimethylsiloxane (PDMS), resulting in flexible and stretchable conductive LIG‐PDMS constructs that are stable under repeated deformation and incubation in buffer. LIG‐PDMS is integrated into Muscle on a Chip devices and deployed as miniature strain
Anastasia Svetlova   +11 more
wiley   +1 more source

Balancing the Water-Carbon Trade-Off: Development of a Bi-Level Source-Grid-Load Synergistic Optimization Model for Multi-Regional Electric Power System

open access: yesElectronics
This study introduces the Bi-Level Source-Grid-Load Synergistic Optimization (BL_SGLSO) model, which effectively balances the competing objectives of water conservation and carbon emission reduction in the power industry. The model aims to establish a clean and low-carbon electric power system by harmoniously reconciling these two critical goals ...
Tao Liu   +3 more
openaire   +1 more source

An Averaged-Value Model of an Asymmetrical Hybrid Multi-Level Rectifier

open access: yesEnergies, 2019
The development and the validation of an averaged-value mathematical model of an asymmetrical hybrid multi-level rectifier is presented in this work.
Salvatore Foti   +3 more
doaj   +1 more source

Ultrahigh Piezoelectricity in Truss‐Based Ferroelectric Ceramics Metamaterials

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
By leveraging the unique combination of polarization direction and loading state, ultrahigh piezoelectricity is achieved through careful tuning of the relative density and scaling ratio in truss‐based ferroelectric metamaterials. This approach enables the simultaneous realization of extremely high piezoelectric constants and ultralow dielectric ...
Jiahao Shi   +6 more
wiley   +1 more source

Assessment of load of beam-balanced pumping units by electric motor power indicators

open access: yesЗаписки Горного института, 2017
The results of experimental studies on the loading of beam-balanced pumping units (BP) of sucker rod- pumping equipment (SRPE) are presented. It is noted that the key factor that has the most significant effect causing the SRPE failure is the balance of the beam pumping unit, which determines the amount of specific energy consumption for the rise of ...
D. I. Shishlyannikov, A. A. Rybin
openaire   +1 more source

Smart grids for rural conditions and e-mobility - Applying power routers, batteries and virtual power plants [PDF]

open access: yes, 2016
Significant reductions of greenhouse gas emission by use of renewable energy sources belong to the common targets of the European Union. Smart grids address intelligent use and integration of conventional and renewable generation in combination with ...
Boehner, Volker   +6 more
core  

Wearable Body Temperature Sensing with Autonomous Self‐regulated Joule Heating and Passive Cooling for Healthcare Applications

open access: yesAdvanced Functional Materials, Volume 35, Issue 13, March 25, 2025.
A flexible and eco‐friendly composite film of lauric acid, styrene‐ethylene‐butylene‐styrene, and graphene nanoplatelets achieves ultra‐sensitive temperature responsiveness at body‐relevant temperatures (35–40 °C). With a PTC intensity of 4 orders of magnitude and a TCR of 471.4% °C⁻¹, this novel material offers groundbreaking applications in wearable ...
Hongxu Guo   +8 more
wiley   +1 more source

Collaborative strategy for electric vehicle charging scheduling and route planning

open access: yesIET Smart Grid
Due to varying energy demands and supply levels in different regions, the distribution of power load exhibits an imbalanced state. It contributes to increased power loss and poses a threat to the security constraints of the electrical grid ...
Jingyi Zhang   +4 more
doaj   +1 more source

A Proton Selective Carbon Nitride Layer for High Durability Fuel Cells

open access: yesAdvanced Functional Materials, Volume 35, Issue 13, March 25, 2025.
A Langmuir‐based approach is used to engineer a centimetre‐scale monolayer film of tessellated 2D graphitic carbon nitride sheets (Polytriazine Imide (PTI)). Optimal pore geometry and functionalization result in a proton‐selective hydrophilic lattice. Integrating the PTI nanolayer at the PEM‐cathode interface of a fuel cell provides improved nanoscale ...
Keenan Smith   +5 more
wiley   +1 more source

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