Wave Forecasting in Muddy Coastal Environments: Model Development Based on Real-Time Observations

2003 ◽  
Author(s):  
Alexandru Sheremet ◽  
Gregory W. Stone ◽  
James M. Kaihatu
2004 ◽  
Author(s):  
Alexandru Sheremet ◽  
Gregory W. Stone ◽  
James M. Kaihatu

Author(s):  
H. Wensink ◽  
T. Schilperoort
Keyword(s):  

2006 ◽  
Vol 9 (3) ◽  
pp. 361-366 ◽  
Author(s):  
John Graham ◽  
Liya Zheng ◽  
Cleotilde Gonzalez

Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 357
Author(s):  
Dae-Hyun Jung ◽  
Na Yeon Kim ◽  
Sang Ho Moon ◽  
Changho Jhin ◽  
Hak-Jin Kim ◽  
...  

The priority placed on animal welfare in the meat industry is increasing the importance of understanding livestock behavior. In this study, we developed a web-based monitoring and recording system based on artificial intelligence analysis for the classification of cattle sounds. The deep learning classification model of the system is a convolutional neural network (CNN) model that takes voice information converted to Mel-frequency cepstral coefficients (MFCCs) as input. The CNN model first achieved an accuracy of 91.38% in recognizing cattle sounds. Further, short-time Fourier transform-based noise filtering was applied to remove background noise, improving the classification model accuracy to 94.18%. Categorized cattle voices were then classified into four classes, and a total of 897 classification records were acquired for the classification model development. A final accuracy of 81.96% was obtained for the model. Our proposed web-based platform that provides information obtained from a total of 12 sound sensors provides cattle vocalization monitoring in real time, enabling farm owners to determine the status of their cattle.


Author(s):  
JOSE MOYANO RETAMERO ◽  
ELENA SANCHEZ BADORREY ◽  
MARTA GOMEZ LAHOZ

2017 ◽  
Vol 51 (24) ◽  
pp. 14233-14243 ◽  
Author(s):  
Michael Chys ◽  
Wim T. M. Audenaert ◽  
Emma Deniere ◽  
Séverine Thérèse F. C. Mortier ◽  
Herman Van Langenhove ◽  
...  

Author(s):  
Peter Naaijen ◽  
Rene´ Huijsmans

This paper presents results of a validation study into a linear short term wave and ship motion prediction model for long crested waves. Model experiments have been carried out during which wave elevations were measured at various distances down stream of the wave maker simultaneously. Comparison between predicted and measured wave elevation are presented for 6 different wave conditions. The theoretical relation between spectral content of an irregular long crested wave system and optimal prediction distance for a desired prediction time is explained and validated. It appears that predictions can be extended further into the future than expected based on this theoretical relation.


Industries such as, textile, food processing, chemical and water treatment plants are part of our global development. The efficiency of processes used by them is always a matter of great importance. Efficiency can be greatly improved by obtaining an exact model of the process. This paper studies the two main classifications of model development – First-Principles Model and Empirical Model. First-Principles Model can be obtained with an understanding of the basic physics of the system. On the other hand, Empirical Models require only the input-output data and can thus factor in process non-linearity, disturbances and unexpected errors. This paper utilizes the System Identification Toolbox in MATLAB for empirical model development. Models are developed for a single tank system, a classic SISO problem and for the two interacting tank system. Both systems are studied with respect to three operating points, each from a local linear region. The obtained models are validated with the real-time setup. They are satisfactory in their closeness to the real time process and hence deemed fit for use in control algorithms and other process manipulations


2017 ◽  
Author(s):  
Alexandra Simpson ◽  
Merrick Haller ◽  
David Walker ◽  
Pat Lynett

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