Results 51 to 60 of about 10,920,097 (266)

Cost-Based Droop Scheme for Converters in Interconnected Hybrid Microgrids

open access: yesIEEE Access, 2019
Hybrid microgrids are the future of the power system as they bring the advantages of ac and dc networks under a common roof. As the power system continues to expand, hybrid microgrids will be connected together for increased reliability.
Sarmad Majeed Malik   +4 more
doaj   +1 more source

Nominal rigidities and the optimal rate of inflation [PDF]

open access: yes, 1999
This paper analyses two reasons why inflation may interfere with price adjustment so as to create inefficiencies in resource allocation at low rates of inflation.
Andersen, Torben M.
core  

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Renewable energy from irrigation infrastructure: Experimental insights from a Michell-Banki micro-hydropower prototype in a Colombian irrigation district

open access: yesInternational Journal of Renewable Energy Development
This study presents the experimental characterization of a Michell–Banki micro-hydropower prototype implemented in the Túnel del Río Neiva irrigation district (Colombia), aimed at promoting distributed generation in off-grid rural areas.
Juan Gonzalo Ardila Marín   +2 more
doaj   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

open access: yesAdvanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa   +9 more
wiley   +1 more source

Supporting strategy for investment evaluation of photovoltaic power generation engineering projects using multi-criteria decision analysis methods

open access: yesSolar Compass
This scientific study examines the evaluation of photovoltaic power generation projects through the application of multi-criteria decision analysis methods. Two groups of large-scale grid-connected PV power generation system projects with a nominal power
Panagiotis Raptis, Georgios Aretoulis
doaj   +1 more source

Field Report from Collaborative Research Center 1625: Heterogeneous Research Data Management Using Ontology Representations

open access: yesAdvanced Engineering Materials, EarlyView.
A unified research data management framework for heterogeneous materials data is presented. The system integrates multimodal datasets using ontologies and knowledge graphs, enabling interoperability and FAIR (findable, accessible, interoperable, reusable) data principles. By linking data across scales and workflows, it supports reproducible, Artifitial
Doaa Mohamed   +6 more
wiley   +1 more source

Use of adaptive system of redistribution engine capacities on purpose decrease in the harmful impacts of toxic substances on the human body

open access: yesВестник СибАДИ, 2017
The article is devoted to the problem of reducing the harmful effects of toxic substances on the human body in the work of the chain trench excavator. Typical load variation on the shaft of the diesel internal combustion engine during the working process
D. S. Aleshko   +2 more
doaj   +1 more source

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu   +10 more
wiley   +1 more source

Nonlinear Adjustment, Purchasing Power Parity and the Role of Nominal Exchange Rates and Prices [PDF]

open access: yes
Although the literature on purchasing power parity (PPP) is rich in controversy, the relative contribution of prices and nominal exchange rates to real exchange rate movements which restore PPP disequilibria has rarely been put under any close scrutiny ...
Joscha Beckmann
core  

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