Results 41 to 50 of about 913,912 (191)

A proposal for tsunami mitigation by using coastal vegetations: some findings from southern coastal area of Central Java, Indonesia

open access: yesJournal of Natural Resources and Development, 2013
This research was conducted at the southern coastal area of central Java Island, Indonesia. It is aimed to identify several coastal vegetation characteristics for development of guideline for planning and design of tsunami mitigation.
Djati Mardiatno
doaj   +1 more source

A numerical model for the simulation of a solitary wave in a coastal region [PDF]

open access: yes, 2015
In this paper we propose a numerical model for the simulation of the tsunami wave propagation on coastal region. The model can simulate the wave transformation due to refraction, shoaling, diffraction and breaking phenomena that take place in the surf ...
CAMILLI, FLAMINIA, LASAPONARA, FRANCESCO
core   +1 more source

Interruption characteristic of self-triggering low voltage hybrid DC circuit breaker with non-polarized bidirectional breaking

open access: yesInternational Journal of Electrical Power & Energy Systems
The global new photovoltaic installed capacity reached 345.5GW in 2023. As the installed capacity of photovoltaic power generation systems increases worldwide, there is a growing demand for circuit breakers to withstand higher voltages on the DC side of ...
Jianning Yin   +3 more
doaj   +1 more source

Correlations between hidden units in multilayer neural networks and replica symmetry breaking

open access: yes, 1999
We consider feed-forward neural networks with one hidden layer, tree architecture and a fixed hidden-to-output Boolean function. Focusing on the saturation limit of the storage problem the influence of replica symmetry breaking on the distribution of ...
A. Engel   +20 more
core   +1 more source

Analysis of electric repulsion on contacts of different molded case circuit breakers

open access: yesAIP Advances
The electric repulsion between the movable contact and static contact of molded case circuit breakers (MCCBs) will directly affect the breaking speed of the movable contact, which in turn affects its breaking capacity.
Jie Zhang   +4 more
doaj   +1 more source

How to Maximize the Capacity of General Quantum Noisy Channels

open access: yes, 2008
A general quantum noisy channel is analyzed, wherein the transmitted qubits may experience symmetry-breaking decoherence, along with memory effects.
Agrawal   +15 more
core   +1 more source

Research on working principle and cross-track cutting characteristic of the axis-tilted rock-breaking tool

open access: yesAdvances in Mechanical Engineering, 2019
Concentric-track cutting method of a conventional polycrystalline diamond compact bit makes the bit suffer from inadequate rock-penetrating capacity and severely hinders the improvement of rock-breaking efficiency.
Haitao Ren   +5 more
doaj   +1 more source

Development and prospect of direct‐current circuit breaker in China

open access: yesHigh Voltage, 2021
The direct‐current circuit breaker (DCCB) is the most ideal choice for DC fault isolation in DC grids. Despite a late start, China's research and development on the DCCB have made outstanding achievements.
Weijiang Chen   +11 more
doaj   +1 more source

The Structural and Electromagnetic Comparative Analysis of the Bifilar-Meander-Type Winding Method of Superconducting DC Circuit Breaker

open access: yesEnergies, 2023
As the utilization of DC systems increases worldwide, the importance of DC cutoff technology is increasing. We proposed a hybrid DC cutoff technology combining an SFCL (superconducting fault-current-limiter) and a mechanical DC circuit breaker.
Sang-Yong Park   +3 more
doaj   +1 more source

Dual gauge field theory of quantum liquid crystals in two dimensions [PDF]

open access: yes, 2017
We present a self-contained review of the theory of dislocation-mediated quantum melting at zero temperature in two spatial dimensions. The theory describes the liquid-crystalline phases with spatial symmetries in between a quantum crystalline solid and ...
Beekman, Aron J.   +7 more
core   +3 more sources

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