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The traditional additional inertial control (T-AIC) strategy can provide frequency support for the directly-driven wind turbine with a permanent magnet synchronous generator (D-PMSG). However, due to the fixed control coefficients, the frequency modulati...
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Gh. Rasool Begh,Ajaz Hussain Mir
Pág. 122 - 128
Cognitive radio has emerged as an efficient approach to address the problem of spectrum under-utilization. OFDM has been proposed as a potential candidate for the physical layer of cognitive radios due to its inherent characteristics of spectrum shaping,...
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Chiharu Mizuki and Yasuhisa Kuzuha
Frequency analysis has long been an important theme of hydrology research. Although meteorological techniques (physical approaches) such as radar nowcasting, remote sensing, and forecasting heavy rainfall events using meteorological simulation models are...
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Marco Casoni and Ernesto Benini
Aeroelastic phenomena in turbomachinery are one of the most challenging problems to model using computational fluid dynamics (CFD) due to their inherent nonlinear nature, the difficulties in simulating fluid?structure interactions and the considerable co...
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Claudio Durastanti and Laura Moretti
The attention to environmental impacts of cement production has grown fast in recent decades. The cement industry is a significant greenhouse gases emitter mainly due to the calcinations of raw materials and the combustions of fuels. This paper investiga...
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Guotao Sun, Anders Thygesen and Anne S. Meyer
Implementation of microbial fuel cells (MFCs) for electricity production requires effective current generation from waste products via robust cathode reduction. Three cathode types using dissolved oxygen cathodes (DOCs), ferricyanide cathodes (FeCs) and ...
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Marina Yegorovna Anokhina,Galina Mikhailovna Zinchuk,Aleksandr Vladimirovich Butov
Pág. 52 - 58
Based on the analysis of the economic growth theories, economic cyclicality and industrial markets the article presents a concept of economic growth of industrial complexes. The concept focuses on factors, determinators and conditions of economic growth ...
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Alexander Robitzsch
Item response theory (IRT) models are frequently used to analyze multivariate categorical data from questionnaires or cognitive test data. In order to reduce the model complexity in item response models, regularized estimation is now widely applied, addi...
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Yong-Min Kim, Gyeol Han, Hyunwoo Kim, Tae-Min Oh, Jin-Seop Kim and Tae-Hyuk Kwon
Acoustic emission (AE) has garnered significant interest as a promising way to detect the early-stage development of internal cracks and damage in underground and geotechnical structures, associated with natural disasters. Meanwhile, AE source localizati...
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Julio Cesar Wojciechowski,Julio Eduardo Arce,Saulo Henrique Weber,Paulo Justiniano Ribeiro Junior,Carlos Alberto da Fonseca Pires
Pág. 597 - 607
O presente estudo teve como objetivo utilizar o compartilhamento de parâmetros de modelos geoestatísticos aplicado aos estimadores de máxima verossimilhança para predizer os volumes por hectare em três fragmentos de Floresta Estacional Subtropical locali...
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Freddy Mora, Alexandra I. Santos, Carlos A. Scapim
Pág. 105 - 112
Statistical procedures for mapping quantitative trait loci (QTL) have been extensively studied because they are the essential for improving the accuracy of genetic analyses. The objective of the present study was to examine QTL using multivariate methods...
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Abdullah Gokhan Yilmaz, Monzur Alam Imteaz, Abdallah Shanableh, Rami Al-Ruzouq, Serter Atabay and Khaled Haddad
A design flood is an essential input for water infrastructure design and flood protection. A flood frequency analysis has been traditionally performed under stationarity assumption indicating that the statistical properties of historical flooding will no...
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Yannis S. Androulidakis and Yannis N. Krestenitis
The sea surface temperature (SST) is an important factor and indicator of the sea water quality, with various ecological and anthropogenic implications. We used high-resolution satellite-derived SST data, in tandem with field observations and long-term m...
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Vadim Sidorov, Vitalina Babenko, Michael Bondarenko
Pág. 70 - 76
Modern processes of reforming the agroindustrial complex of Ukraine, a large part of which belongs to the agrarian sector, under the globalization of world economic processes in the agricultural market require that domestic agroindustrial enterprises imp...
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Rita Tinoco Torres,Juan Herrero,Carlos Prada,Alicia Garcia-Serrano,Olatz Fernandez-Arberas,Ricardo Garcia-Post
Pág. 36 - 43
Aim of study: To manage and conserve wild populations effectively, a good understating of population density is critical. During 2010, the density of Iberian wild goat Capra pyrenaica and mouflon Ovis aries were estimated.Area of study: The area is situa...
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Haiming Liu, Bo Xu and Bin Liu
Underwater target search and tracking has become a technical hotspot in underwater sensor networks (UWSNs). Unfortunately, the complex and changeable marine environment creates many obstacles for localization and tracking. This paper proposes an automati...
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Vladimir Ivanovich Trukhachev,Igor Yurevich Sklyarov,Julia Mikhailovna Sklyarova,Lyudmila Anatolevna Latysheva,Helena Nikolayevna Lapina
Pág. 33 - 41
The present article estimates the resource potential of the agriculture, and reveals basic factors affecting agricultural production and agrarian market in the region. The author defines the reserves related to increasing the economic...
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Irina V. Androsova,Aleksandr V. Melnichuk,Valery V. Bondaletov,Mikhail V. Vinichenko,Elena V. Duplij
Pág. 114 - 119
Agro-industrial complex (AIC) - a complex socio-economic system, which includes companies with different forms of ownership and management. State regulation should ensure the effective functioning of agro-industrial complex as a single mechanism, taking ...
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Eliana Arango, Carlos Andres Ramos-Paja, Javier Calvente, Roberto Giral and Sergio Ignacio Serna-Garces
A previous article has presented the members of the asymmetrical interleaved dc/dc switching converters family as very appropriate candidates to interface between photovoltaic or fuel cell generators and their loads because of their reduced ripple and in...
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Lei Li, Yamin Wu, Houqiao Wang, Junjie He, Qiaomei Wang, Jiayi Xu, Yuxin Xia, Wenxia Yuan, Shuyi Chen, Lin Tao, Xinghua Wang and Baijuan Wang
To investigate the variation in flavonoids content in ancient tree sun?dried green tea under abiotic stress environmental conditions, this study determined the flavonoids content in ancient tree sun-dried green tea and analyzed its correlation with corre...
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