Results 11 to 20 of about 69,881 (266)

Methodology for Verifying the Indication Correctness of a Vessel Compass Based on the Spectral Analysis of Heading Errors and Reliability Theory

open access: yesSensors, 2022
This article presents a novel method for validating compass devices. To this end, the post-processing method was used, i.e., the previously recorded vessel’s heading from three compass devices was applied.
Krzysztof Jaskólski
doaj   +1 more source

Critical earthquake response of elastic-plastic structures under near-fault ground motions (Part 1: Fling-step input)

open access: yesFrontiers in Built Environment, 2015
The double impulse input is introduced as a substitute of the fling-step near-fault ground motion and a closed-form solution of the elastic-plastic response of a structure by the ‘critical double impulse input’ is derived.
Kotaro eKojima, Izuru eTakewaki
doaj   +1 more source

Exploring river–aquifer interactions and hydrological system response using baseflow separation, impulse response modeling, and time series analysis in three temperate lowland catchments [PDF]

open access: yesHydrology and Earth System Sciences, 2022
Lowland rivers and shallow aquifers are closely coupled, and their interactions are crucial for maintaining healthy stream ecological functions. To explore river–aquifer interactions and the lowland hydrological system in three Belgian catchments, we ...
M. Lu   +6 more
doaj   +1 more source

Critical Response of Single-Degree-of-Freedom Damped Bilinear Hysteretic System under Double Impulse As Substitute for Near-Fault Ground Motion

open access: yesFrontiers in Built Environment, 2018
A double impulse input is used as a substitute for near-fault earthquake ground motions. An explicit expression is derived on the maximum elastic–plastic response of a single-degree-of-freedom damped structure with bilinear hysteresis under the “critical
Hiroki Akehashi   +2 more
doaj   +1 more source

Modelling the Fiscal Effects of Aid: An Impulse Response Analysis for Ghana [PDF]

open access: yesSSRN Electronic Journal, 2003
An important feature of aid to developing countries is that it is given to the government. As a result, aid should be expected to affect fiscal behaviour. Traditional approaches to modelling fiscal effects are beset by theoretical and empirical problems.
Osei, Robert   +2 more
openaire   +2 more sources

Critical earthquake response of elastic-plastic structures under near-fault ground motions (Part 2: Forward-directivity input)

open access: yesFrontiers in Built Environment, 2015
The triple impulse input is used as a simplified version of the forward-directivity near-fault ground motion and a closed-form solution of the elastic-plastic response of a structure by this triple input is obtained.
Kotaro eKojima, Izuru eTakewaki
doaj   +1 more source

Crecimiento económico en América Latina y el rol de China. Un análisis desde el Neo-estructuralismo latinoamericano. [PDF]

open access: yesJanus.net, 2022
This research aims is to analyze the role that the Chinese economy has had in the economic growth of Latin America. The methodology used consists of a multivariate approach for time series, and causal relationships are obtained through the impulse ...
Rafael Gustavo Miranda Delgado   +1 more
doaj   +1 more source

Volatility impulse response analysis for DCC‐GARCH models: The role of volatility transmission mechanisms [PDF]

open access: yesJournal of Forecasting, 2020
AbstractThis study introduces volatility impulse response functions (VIRF) for dynamic conditional correlation–generalized autoregressive conditional heteroskedasticity (DCC‐GARCH) models. In addition, the implications with respect to network analysis—using the connectedness approach of Diebold and Y lmaz (Journal of Econometrics, 2014, 182(1), 119–134)
openaire   +3 more sources

Analysis of factors affecting dominant acoustic impulse-response frequency of orange fruit based on grey relative theory

open access: yes浙江大学学报. 农业与生命科学版, 2005
Using nondestructive acoustic impulse-response technique to evaluate the quality of oranges, it was found that there were lots of factors affecting dominant impulse-response frequency, such as mass, density, pH value, firmness and sugar content ...
HUANG Hui-ming   +4 more
doaj   +1 more source

Ultra-Wideband Geo-Regioning: A Novel Clustering and Localization Technique

open access: yesEURASIP Journal on Advances in Signal Processing, 2007
Ultra-wideband (UWB) technology enables a high temporal resolution of the propagation channel. Consequently, a channel impulse response between transmitter and receiver can be interpreted as signature for their relative positions.
Armin Wittneben   +3 more
doaj   +1 more source

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