Search Results - "MAKRIS, Nicholas C"

Optimal Automatic Wide-Area Discrimination of Fish Shoals from Seafloor Geology with Multi-Spectral Ocean Acoustic Waveguide Remote Sensing in the Gulf of Maine by Eleftherios, Kaklamanis, Ratilal, Purnima, Makris, Nicholas C.

“…Ocean Acoustic Waveguide Remote Sensing (OAWRS) enables fish population density distributions to be instantaneously quantified and continuously monitored over…”
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Quantification of Wide-Area Norwegian Spring-Spawning Herring Population Density with Ocean Acoustic Waveguide Remote Sensing (OAWRS) by Duane, Daniel, Godø, Olav Rune, Makris, Nicholas C.

“…Norwegian spring-spawning herring are a critical economic resource for multiple nations in the North Atlantic and a keystone species of the Nordic Seas…”
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Critical Population Density Triggers Rapid Formation of Vast Oceanic Fish Shoals by Makris, Nicholas C, Ratilal, Purnima, Jagannathan, Srinivasan, Gong, Zheng, Andrews, Mark, Bertsatos, Ioannis, Godø, Olav Rune, Nero, Redwood W, Jech, J. Michael

“…Similarities in the behavior of diverse animal species that form large groups have motivated attempts to establish general principles governing animal group…”
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Rapid predator-prey balance shift follows critical-population-density transmission between cod (Gadus morhua) and capelin (Mallotus villosus) by Pednekar, Shourav, Jain, Ankita, Godø, Olav Rune, Makris, Nicholas C.

“…Sensing limitations have impeded knowledge about how individual predator-prey interactions build to organized multi-species group behaviour across an…”
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The Effect of Attenuation from Fish on Passive Detection of Sound Sources in Ocean Waveguide Environments by Duane, Daniel, Zhu, Chenyang, Piavsky, Felix, Godø, Olav Rune, Makris, Nicholas C.

“…Attenuation from fish can reduce the intensity of acoustic signals and significantly decrease detection range for long-range passive sensing of manmade…”
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The Effect of Attenuation from Fish Shoals on Long-Range, Wide-Area Acoustic Sensing in the Ocean by Duane, Daniel, Cho, Byunggu, Jain, Ankita D., Godø, Olav Rune, Makris, Nicholas C.

“…Acoustics is the primary means of long-range and wide-area sensing in the ocean due to the severe attenuation of electromagnetic waves in seawater. While it is…”
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Underwater Sound Characteristics of a Ship with Controllable Pitch Propeller by Zhu, Chenyang, Gaggero, Tomaso, Makris, Nicholas C., Ratilal, Purnima

“…The time-dependent spectral characteristics of underwater sound radiated by an ocean vessel has complex dependencies on ship machinery, propeller dynamics,…”
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Feasibility of Acoustic Remote Sensing of Large Herring Shoals and Seafloor by Baleen Whales by Yi, Dong Hoon, Makris, Nicholas C

“…Recent research has found a high spatial and temporal correlation between certain baleen whale vocalizations and peak herring spawning processes in the Gulf of…”
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The evolution of air resonance power efficiency in the violin and its ancestors by Nia, Hadi T., Jain, Ankita D., Liu, Yuming, Alam, Mohammad-Reza, Barnas, Roman, Makris, Nicholas C.

“…The fact that acoustic radiation from a violin at air-cavity resonance is monopolar and can be determined by pure volume change is used to help explain related…”
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Ecosystem scale acoustic sensing reveals humpback whale behavior synchronous with herring spawning processes and re-evaluation finds no effect of sonar on humpback song occurrence in the Gulf of Maine in fall 2006 by Gong, Zheng, Jain, Ankita D, Tran, Duong, Yi, Dong Hoon, Wu, Fan, Zorn, Alexander, Ratilal, Purnima, Makris, Nicholas C

“…We show that humpback-whale vocalization behavior is synchronous with peak annual Atlantic herring spawning processes in the Gulf of Maine. With a passive,…”
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Fish Population and Behavior Revealed by Instantaneous Continental Shelf-Scale Imaging by Makris, Nicholas C, Ratilal, Purnima, Symonds, Deanelle T, Jagannathan, Srinivasan, Lee, Sunwoong, Nero, Redwood W

“…Until now, continental shelf environments have been monitored with highly localized line-transect methods from slow-moving research vessels. These methods…”
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Active Nonlinear Acoustic Sensing of an Object with Sum or Difference Frequency Fields by Zhang, Wenjun, Liu, Yuming, Ratilal, Purnima, Cho, Byunggu, Makris, Nicholas

“…A number of nonlinear acoustic sensing methods exist or are being developed for diverse areas ranging from oceanic sensing of ecosystems, gas bubbles, and…”
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Maximum Likelihood Deconvolution of Beamformed Images with Signal-Dependent Speckle Fluctuations from Gaussian Random Fields: With Application to Ocean Acoustic Waveguide Remote Sensing (OAWRS) by Jain, Ankita D, Makris, Nicholas C

“…Wide area acoustic remote sensing often involves the use of coherent receiver arrays to determine the spatial distribution of sources and scatterers at any…”
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The array invariant by LEE, Sunwoong, MAKRIS, Nicholas C

“…A method is derived for instantaneous source-range estimation in a horizontally stratified ocean waveguide from passive beam-time intensity data obtained after…”
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Quantifying hurricane destructive power, wind speed, and air-sea material exchange with natural undersea sound by Wilson, Joshua D., Makris, Nicholas C.

“…Passive ocean acoustic measurements may provide a safe and inexpensive means of accurately quantifying the destructive power of a hurricane. This is…”
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Predicting the Effects of Random Ocean Dynamic Processes on Underwater Acoustic Sensing and Communication by Cho, Byunggu, Makris, Nicholas C.

“…Acoustics is the primary means of sensing and communication in the ocean for humans and many marine animals. Natural fluctuations in the ocean, however,…”
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Real-Time Detection, Bearing Estimation, and Whale Species Vocalization Classification From Passive Underwater Acoustic Array Data by Mohebbi-Kalkhoran, Hamed, Makris, Nicholas C., Ratilal, Purnima

“…Developing automatic algorithms for real-time monitoring of underwater acoustic events is essential in ocean acoustic applications. Most previous ocean…”
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Feasibility of Ocean Acoustic Waveguide Remote Sensing (OAWRS) of Atlantic Cod with Seafloor Scattering Limitations by Jain, Ankita D, Ignisca, Anamaria, Yi, Dong Hoon, Ratilal, Purnima, Makris, Nicholas C

“…Recently reported declines in the population of Atlantic cod have led to calls for additional survey methods for stock assessments. In combination with…”
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Simultaneous localization of multiple broadband non-impulsive acoustic sources in an ocean waveguide using the array invariant by Gong, Zheng, Ratilal, Purnima, Makris, Nicholas C

“…The array invariant method, previously derived for instantaneous range and bearing estimation of a single broadband impulsive source in a horizontally…”
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Integrated computing system for real-time data processing, storage and communication with large aperture 160-element coherent hydrophone array by Mohebbi-Kalkhoran, Hamed, Schinault, Matthew, Makris, Nicholas C., Ratilal, Putnima

“…Underwater acoustic data contain signals from a myriad of sound sources and monitoring these acoustic events is important for many ocean applications…”
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