Results 151 to 160 of about 1,253,627 (291)

Modeling and Power Regulation Strategy of Variable‐Speed Pumped Storage Unit With Full‐Size Converter in Pump Mode

open access: yesEnergy Science &Engineering, Volume 14, Issue 5, Page 2393-2413, May 2026.
A numerical model of variable‐speed pumped storage unit (VSPSU) with full‐size converter (FSC) under fast speed control strategy is established. Additionally, the correctness of the model was validated by comparing with SIMSEN simulation results and text prototype data from NARI.
Weijia Yang   +5 more
wiley   +1 more source

Low-speed inducers for cryogenic upper-stage engines [PDF]

open access: yes
Two-phase, low-speed hydrogen and oxygen inducers driven by electric motors and applicable to the tug engine were designed and constructed. The oxygen inducer was tested in liquid and two-phase oxygen.
Bissell, W. R.   +3 more
core   +1 more source

Integrated Flue‐Gas Heat Recovery for Optimized Steam and Power Generation Using Organic Rankine Cycle (ORC): A Technical and Economic Assessment

open access: yesEnergy Science &Engineering, Volume 14, Issue 5, Page 2499-2513, May 2026.
Integration of a steam cycle with an existing gas turbine increased efficiency from 32% to 51%, reducing fuel consumption by 21.4% and CO2 emissions by 18.6%. The modification generated USD 13.9 million annual savings and lowered the Levelized Cost of Energy to 38.7 USD/MWh, with a 3‐year payback.
Vahid Pirouzfar   +2 more
wiley   +1 more source

Two Problems for the Political Inclusion of Animals

open access: yesJournal of Applied Philosophy, Volume 43, Issue 2, Page 526-548, May 2026.
ABSTRACT In recent years, the field of animal ethics has taken a political turn, with scholars arguing that sentient nonhuman animals should be included in the political sphere. This article explores two key challenges arising from this turn towards the political inclusion of animals: the Conflict Problem and the Numbers Problem.
David Paaske, Angela K. Martin
wiley   +1 more source

Dynamic modeling and dynamical analysis of pump-turbines in S-shaped regions during runaway operation

open access: yes, 2017
Hao Zhang   +5 more
semanticscholar   +1 more source

Visioning ecologically diverse and harmonious futures of Korea in Good Anthropocene

open access: yesPeople and Nature, Volume 8, Issue 5, Page 1379-1402, May 2026.
Abstract The Korean Demilitarized Zone (DMZ), a buffer between North and South Korea, holds profound historical, cultural and ecological significance, as well as exceptional potential for conservation and transformation. This study explores ecologically diverse and peaceful futures for the Korean Peninsula by envisioning the DMZ as a landscape for ...
HyeJin Kim   +24 more
wiley   +1 more source

Trading Strategies on Local Electricity Markets Using Agent‐Based Modelling and Reinforcement Learning: Vectors to Expand Energy Communities

open access: yesSystems Research and Behavioral Science, Volume 43, Issue 3, Page 1188-1211, May/June 2026.
ABSTRACT Energy communities (ECs) members have a high degree of heterogeneity. Agent‐based modelling (ABM) allows for the modelling of each entity as an agent with distinct characteristics and decision rules. This is particularly useful when the heterogeneity of agents affects outcomes.
Adela Bâra, Simona‐Vasilica Oprea
wiley   +1 more source

Enhancing Infrastructure Resilience in Service Utilities through Embedding Versatility in System Architecture

open access: yesSystems Research and Behavioral Science, Volume 43, Issue 3, Page 1295-1313, May/June 2026.
ABSTRACT Enhancing infrastructure resilience, a key component of transforming and sustainably developing service utilities, requires a transdisciplinary and systems engineering framework. Addressing vulnerabilities in system architecture offers opportunities for resilience improvements, thereby mitigating the environmental, social, and economic impacts
Bob Hasanabadi   +2 more
wiley   +1 more source

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