Results 111 to 120 of about 69,165 (263)

Control of traction supply power quality using locomotive PWM converter controls [PDF]

open access: yes, 2003
Wolfs, PJ ORCiD: 0000-0001-7048-1231Railway traction systems are highly susceptible to severe harmonic distortion, poor voltage regulation and line resonances.
Vijaya Kuppa (9811595)   +8 more
core  

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele   +2 more
wiley   +1 more source

Space charge determination in HVDC power cable and its influence on electric field

open access: yes, 2010
Considerable amount of transmission and distribution of electricity is carried out by power cable. At present, most high voltage direct current (HVDC) installation uses traditional (oil-impregnated paper insulation and oil-filled-types) cables which pose
Choo, Chin Tze
core  

A Dislocation Perspective on Strength and Toughness in Ceramics

open access: yesAdvanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source

A new approach for reliability-centered maintenance programs in electric power distribution systems based on a multiobjective genetic algorithm

open access: yes, 2016
This paper proposes a multiobjective model to solve the mathematical problem of optimizing reliability-centered maintenance planning of an electric power distribution system (EPDS).
Bíscaro, André A.P.   +3 more
core   +1 more source

Optimal Scheduling of Electricity–Hydrogen–Heat Integrated Energy System Considering Electrolyzer Dynamic Temperature and Pipeline Network Heat Storage

open access: yesInternational Transactions on Electrical Energy Systems
To leverage the complementary advantages of hydrogen, electricity, and heat, this paper proposes a coordinated optimization scheduling method for an integrated electricity–hydrogen–heat energy system, considering the dynamic operating temperature of ...
Aidong Zeng   +4 more
doaj   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

open access: yesAdvanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi   +3 more
wiley   +1 more source

Feasibility of Nitrogen as a Carrier Gas for Inconel Cold Spray in Hydropower Application

open access: yesAdvanced Engineering Materials, EarlyView.
N2, despite being nearly two orders of magnitude cheaper than He, is a feasible carrier gas for cold spray Inconel coatings in hydropower repair applications when higher gas temperature and pressure are used. Reducing powder size significantly improved cavitation resistance, while the addition of fine chromium carbide particles further enhanced erosion
Tianhao Wang   +4 more
wiley   +1 more source

Reconfigurable Logic‐in‐Memory Operations Enabled by Triple‐Gated Feedback Field‐Effect Transistors for Area‐Efficient Computing

open access: yesAdvanced Engineering Materials, EarlyView.
A reconfigurable logic‐in‐memory cell composed of triple‐gated feedback field‐effect transistors implements multiple combinational logic functions within a single configuration. By utilizing program gates as dynamic input terminals, the proposed cell performs full adder, full subtractor, 2‐to‐1 multiplexer, and 4‐to‐2 encoder operations without ...
Minhyeok Seol   +5 more
wiley   +1 more source

The role of power system flexibility in generation planning

open access: yes, 2011
Paper presented at the IEEE 2011, Power and Energy Society General Meeting, San Diego, CA, 24-29 July 2011As the penetration of variable renewable generation increases in power systems worldwide, planning for the effects of variability will become more ...
Eamonn Lannoye   +6 more
core   +1 more source

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