نتایج جستجو برای: whale optimization control

تعداد نتایج: 1614231  

Journal: :iranian journal of science and technology (sciences) 2014
m. r. rasaei

intelligent wells provide the ability for monitoring and control of downhole environment of the wells. downhole monitoring is achieved through sensors while control is realized with downhole valves. recovery from intelligent wells can be improved by proper selection of candidate wells/fields and optimizing the number, location and performance of the installed interval control valves. design cri...

Journal: :the modares journal of electrical engineering 2015
mortza rezayi hamid farrokhi

abstract this paper presents a multiobjective power control algorithm that updates the transmitted power based on local information. the proposed algorithm is expanded by using multiobjective optimization schemes. the objectives to be optimized in this paper are determined so as to reduce the sinr fluctuations as well as maintaining the sinr to an acceptable level with minimizing an average tra...

2015
R. L. Sanzogni M. G. Meekan J. J. Meeuwig A. Peter Klimley

In-water viewing of sharks by tourists has become a popular and lucrative industry. There is some concern that interactions with tourists with ecotourism operations might harm sharks through disruption of behaviours. Here, we analysed five years of whale shark (Rhincodon typus) encounter data by an ecotourism industry at Ningaloo Reef, Western Australia, to assess the impact of ecotourism inter...

2002
ERICH HOYT GLEN T. HVENEGAARD G. T. Hvenegaard

Whale-watching is a significant and growing tourism industry worldwide. Whaling has a long history and, although largely curtailed today, still occurs in a few countries around the world and in the Caribbean. Whaling has been labeled an incompatible activity with whale-watching because, in some cases, it reduces the number of whales available for use and changes whale behavior. Moreover, in som...

Journal: :IEEE Access 2023

Modern power system has complex composition structure and high stability operation requirements. While the emergence of various new energy sources uncertainty external disturbances bring a great challenge to Automatic Generation Control (AGC) system. In order improve robustness AGC facilitate practical engineering application, this paper proposes novel multistage Proportional Integral Derivativ...

2014
Timothy A. Gowan Joel G. Ortega-Ortiz

The coastal waters off the southeastern United States (SEUS) are a primary wintering ground for the endangered North Atlantic right whale (Eubalaena glacialis), used by calving females along with other adult and juvenile whales. Management actions implemented in this area for the recovery of the right whale population rely on accurate habitat characterization and the ability to predict whale di...

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2014
L L Wedekin M R Rossi-Santos C Baracho A L Cypriano-Souza P C Simões-Lopes

Oceanic waters are difficult to assess, and there are many gaps in knowledge regarding cetacean occurrence. To fill some of these gaps, this article provides important cetacean records obtained in the winter of 2010 during a dedicated expedition to collect visual and acoustic information in the Vitória-Trindade seamounts. We observed 19 groups of cetaceans along a 1300-km search trajectory, wit...

Journal: :Molecular biology and evolution 2011
Yosef E Maruvka Nadav M Shnerb Yaneer Bar-Yam John Wakeley

We show that the number of lineages ancestral to a sample, as a function of time back into the past, which we call the number of lineages as a function of time (NLFT), is a nearly deterministic property of large-sample gene genealogies. We obtain analytic expressions for the NLFT for both constant-sized and exponentially growing populations. The low level of stochastic variation associated with...

2004
Mark B. Orams

The Vava’u island group in the northern part of the Kingdom of Tonga in the South Pacific has a growing reputation as a whale-watching destination. The pro-whaling organisation, the World Council of Whalers, with some local people, has, however, been actively promoting a resumption of whaling in Tonga. This study assesses the attitudes and characteristicsof ‘whale tourists’ to the islands. Seve...

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