Results 131 to 140 of about 69,897 (260)

Hydrogen to Power: Exploring Current Developments and Future Challenges

open access: yesNatural Sciences, Volume 6, Issue 3, July 2026.
As the interest in low‐carbon energy systems grows, hydrogen continues to attract attention as a flexible energy carrier for power applications. Developments in hydrogen production, storage, transport, and utilization are explored. In addition, the deployment challenges of hydrogen energy vector related to economics, infrastructure, safety, and ...
Md. Shafiullah   +6 more
wiley   +1 more source

A Review of the Applications and Challenges of Pulsed Electric Fields in Fish Ecological Protection

open access: yesAquaculture, Fish and Fisheries, Volume 6, Issue 3, June 2026.
ABSTRACT The use of pulsed electric fields (PEF) to regulate fish swimming patterns, especially during migratory channel restoration in dammed rivers, faces significant operational challenges. These challenges can generally be attributed to the multifaceted nature of fish behaviour and limitations in research on physical interception methods.
Ting Li   +8 more
wiley   +1 more source

Thermal Analysis of Phase Change Material Based Energy Storage Module With Triply Periodic Minimal Surfaces

open access: yesEnergy Storage, Volume 8, Issue 4, June 2026.
ABSTRACT The thermal performance of two triply periodic minimal surface (TPMS) thermal Energy Storage modules, Diamond and Primitive, was investigated using computational fluid dynamics. The melting and solidification behaviors, as well as the charging and discharging characteristics, of the TPMS Energy Storage units were studied for various flow rates.
Tong Su   +4 more
wiley   +1 more source

Pump as Turbine - Symmetry Prediction Method for Pump as Turbine Characteristics

open access: yes, 2018
As a cheap and available source of renewable energy, regular centrifugal pumps may be run in reverse to act as hydro turbines. Pumps as turbines (PAT) are especially relevant for isolated rural areas, or in developing countries, where efficiency is not necessarily the highest priority.
openaire   +3 more sources

Composite load spectra for select space propulsion structural components [PDF]

open access: yes
The objective of this program is to develop generic load models with multiple levels of progressive sophistication to simulate the composite load spectra that are induced in space propulsion system components, representative of Space Shuttle Main Engines
Ho, H., Kurth, R. E., Newell, J. F.
core   +1 more source

Apparatus for improving the fuel efficiency of a gas turbine engine [PDF]

open access: yes, 1983
An energy recovery system is provided for an aircraft gas turbine engine of the type in which some of the pneumatic energy developed by the engine is made available to support systems such as an environmental control system.
Coffinberry, G. A.
core   +1 more source

Tinkering Towards Sustainability: Bundling Innovations to Electrify the Fossil‐Dependent Process Industry

open access: yesCreativity and Innovation Management, Volume 35, Issue 2, Page 356-373, June 2026.
ABSTRACT Sustainability transitions, such as electrifying the process industry, require a bundle of related innovations to make meaningful progress. Drawing on literature on innovation through tinkering, that is, adaptive, typically small‐scale experimentation with various forms of innovation, and applying a micropolitical perspective, this qualitative
Karin Wigger   +3 more
wiley   +1 more source

Influence of Chronotype on Cycling Performance in Simulated 20‐km Time Trials—A Pilot Study

open access: yesJournal of Sleep Research, Volume 35, Issue 3, June 2026.
Evening‐type athletes show improved cycling performance later in the day, whilst morning types peak earlier. These differences appear linked to variations in mental readiness and sleepiness, highlighting the importance of considering chronotype in performance planning.
Sabrina Forster   +6 more
wiley   +1 more source

Graphene‐Skinned Alumina Fiber: Continuously Scalable Fabrication and Its Electrothermal Application in Fiber‐Reinforced Polymer Composites

open access: yesAdvanced Science, Volume 13, Issue 28, 18 May 2026.
Graphene‐skinned alumina fiber (GAF) is a new composite with graphene conformally grown on individual alumina fibers via chemical vapor deposition (CVD). GAF's dynamic, continuous and scalable production is achieved by using a home‐made roll‐to‐roll (RTR) CVD system featuring integrated degumming and growth chambers. GAF possesses tunable conductivity,
Xiaobai Wang   +13 more
wiley   +1 more source

The turbine pump.

open access: yesThe turbine pump.
種別 ...
openaire  

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