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203801
電子期刊
WANG Jian, and XIE Wei, and WANG Tao, and LIU Xiaojun
<b>[Objectives]</b> Ship conceptual design requires the coordination of many different disciplines for comprehensive optimization, which presents a complicated system design problem affecting several fields of technology. However, the development of overall ship design is relatively slow compared with other subjects. <b>[Methods]</b> The decomposition and coordination strategy of ship design is presented, and the analytical target cascading (ATC) method is applied to the multidisciplinary design...
關鍵字: ship
出版: Editorial Office of Chinese Journal of Ship Research
ISSN: 1673-3185
來源: DOAJ
System ID: 424937
203802
電子期刊
Tamar Guy-Haim, and Noa Simon-Blecher, and Amos Frumkin, and Israel Naaman, and Yair Achituv
Background Aquatic subterranean species often exhibit disjunct distributions, with high level of endemism and small range, shaped by vicariance, limited dispersal, and evolutionary rates. We studied the disjunct biogeographic patterns of an endangered blind cave shrimp, Typhlocaris, and identified the geological and evolutionary processes that have shaped its divergence pattern. Methods We collected Typlocaris specimens of three species (T. galilea, T. ayyaloni, and T. salentina), originating fr...
關鍵字: shrimp
出版: PeerJ Inc.
ISSN: 2167-8359
來源: DOAJ
System ID: 424936
203803
電子期刊
MIN Shaosong, and WANG Zhong, and WANG Hailin, and PENG Fei
<b>[Objectives]</b> When we measure submarine pressure hulls using a total station, it is essential to set several stations in order to complete the measurement of the whole cabin due to the complicated measuring environment. However, there are many restrictions related to the total station itself when moving stations, and it is also difficult to ensure measuring accuracy and satisfy the requirements of submarine measurement in complicated environments.<b>[Methods]</b> As such, a new station mov...
關鍵字: submarine
出版: Editorial Office of Chinese Journal of Ship Research
ISSN: 1673-3185
來源: DOAJ
System ID: 424935
203804
電子期刊
José Ángel Figueredo-Martí
This paper addresses the issue of selecting the sailing sport from an integrative perspective. Indicators are proposed for selecting initial sport that brings together a number of variables (educational, psychological, sociological and anthropometric), which become indicators that correspond to the demands of the sports. The paper offers a comprehensive assessment system that is different from those presented in the bibliography consulted by the author. Its implementation is aimed at ensuring a ...
關鍵字: sailing
出版: Universidad de Guantánamo
ISSN: 2519-9455
來源: DOAJ
System ID: 424934
203805
電子期刊
Hidenori Matsukami, and Go Suzuki, and Nguyen Minh Tue, and Le Huu Tuyen, and Pham Hung Viet, and Shin Takahashi, and Shinsuke Tanabe, and Hidetaka Takigami
Using electrospray ionization tandem mass spectrometry combined with liquid chromatography (LC), a novel analytical method was developed to quantify eight monomeric organophosphorus flame retardants (m-PFRs) and three oligomeric organophosphorus flame retardants (o-PFRs) in fish muscle samples. The optimization and validation experiments indicate that the developed method can determine accurately the concentrations of analytes in fish muscle samples. The recoveries of analytes in fish muscle sam...
關鍵字: fish
出版: KeAi
ISSN: 2405-6650
來源: DOAJ
System ID: 424933
203806
電子期刊
Ke-Xiu LIU, and Hui WANG, and Shi-Jie FU, and Zhi-Gang GAO, and Jun-Xing DONG, and Jian-Long FENG, and Tong GAO
Tide gauge data from 1950 to 2015 are used to analyze sea level change, tidal change, return levels, and design tide levels under rising sea level scenarios in Bohai Bay. Results show the following: 1) Since 1950 sea levels in Bohai Bay show a significant rising trend of 3.3 mm per year. The speed has been particularly rapid in 1980–2015 at a rate of 4.7 mm per year. 2) Astronomical tides showed a clear long-term trend in 1950–2015. The amplitude and phase lag of the M2 tide constituent decrease...
關鍵字: sea
出版: KeAi
ISSN: 1674-9278
來源: DOAJ
System ID: 424932
203807
電子期刊
Yan Xincun, and Ouyang Yongzhong, and Sun Fuping, and Fan Hui
For the underwater integrated navigation system, information fusion is an important technology. This paper introduces the Kalman filter as the most useful information fusion technology, and then gives a summary of the Kalman filter applied in underwater integrated navigation system at present, and points out the further research directions in this field.
關鍵字: navigation
出版: KeAi
ISSN: 1674-9847
來源: DOAJ
System ID: 424931
203808
電子期刊
Viktor Diordiiev
Introduction. Blockchain technology is becoming one of the main drivers of innovation in the global economy. Its adoption will have a huge impact on how businesses and governments operate and on the way people organize their everyday lives. Financial services industry is the one experiencing the biggest impact of the blockchain disruption so far, while financial institutions are among the first adopters of the technology. At the same time, being a relatively traditional industry, shipping has no...
關鍵字: shipping
出版: Institute for Market Problems and Economic-and-Ecological Research of the National Academy of Sciences of Ukraine
ISSN: 2616-7107
來源: DOAJ
System ID: 424930
203809
電子期刊
Gihan A. El-Shoubaky, and Samya H. Mohammad
The green algae (Ulva lactuca and Enteromorpha clathrata) and the clams (Tapes decussates and Venerupis aurea) grow together in Timsah Lake, Suez Canal, Egypt. Our ultimate goal is to validate the bioaccumulation of gasoline in the marine organisms and their behavior after exposure to the pollutant, experimentally. These species were treated with a serial treatment of gasoline (1000, 4000, 16,000 and 64,000 μl) in aquaria with brackish sea-water for 72 h. The tested green algae and clams were ta...
關鍵字: algae
出版: Elsevier
ISSN: 1687-4285
來源: DOAJ
System ID: 424929
203810
電子期刊
Tomomi Inoue, and Mami Kainuma, and Karin Baba, and Nozomi Oshiro, and Norimi Kimura, and Eric Wei Chiang Chan
In this short review, the current knowledge on the botany, ecology, uses and medicinal properties of the multi-purpose Garcinia subelliptica (Fukugi) is updated. As yet, there are no reviews on this indigenous and heritage coastal tree species of the Ryukyu Islands in Japan, which has ethno-cultural, ecological and pharmacological significance. Planted by the Okinawan people some 300 years ago, Fukugi trees serve as wind-breaks and accord protection against the destructive typhoons. The species ...
關鍵字: coastal
出版: SAGEYA
ISSN: 2146-8397
來源: DOAJ
System ID: 424928
203811
電子期刊
Champlon D.
Depuis la première découverte pétrolière réalisée en 1859, l'industrie pétrolière a connu une expansion considérable. Pour faire face à l'accroissement des besoins du monde en hydrocarbures, l'exploration des bassins sédimentaires susceptibles de contenir du pétrole ou du gaz naturel s'est progressivement développée. Compte tenu du potentiel prometteur en hydrocarbures des fonds marins, la recherche de nouveaux gisements s'est étendue aux bassins sédimentaires situés sous les océans, d'abord tou...
關鍵字: offshore
出版: EDP Sciences
ISSN: 1294-4475
來源: DOAJ
System ID: 424927
203812
電子期刊
Maria Elisa Pitanga, and Manuel J.F. Montes, and Karine M. Magalhães, and Thiago N.V. Reis
Multiple stress mechanisms have caused a worldwide decrease in seagrasses, which are vulnerable to environmental and/or anthropogenic pressure. The loss of seagrass meadows of Halodule wrightii is reported for the littoral of Itamaracá Island (Northeastern Brazil). The present study identified the main anthropogenic factors that negatively influenced over the abundance and distribution of seagrass meadows between July and September 2007 at the Jaguaribe and Pilar Beaches, Eastern littoral of Ita...
關鍵字: seagrass
出版: Academia Brasileira de Ciências
ISSN: 0001-3765
來源: DOAJ
System ID: 424926
203813
電子期刊
M. L. Kirwan, and L. K. Blum
Coastal wetlands are responsible for about half of all carbon burial in oceans, and their persistence as a valuable ecosystem depends largely on the ability to accumulate organic material at rates equivalent to relative sea level rise. Recent work suggests that elevated CO<sub>2</sub> and temperature warming will increase organic matter productivity and the ability of marshes to survive sea level rise. However, we find in a series of preliminary experiments that organic decomposition rates incre...
關鍵字: coastal
出版: Copernicus Publications
ISSN: 1726-4170
來源: DOAJ
System ID: 424925
203814
電子期刊
Paulo Henrique Pereira Peixoto, and Daniel Sales Pimenta, and Flávia Antunes
O objetivo deste trabalho foi avaliar os efeitos do flúor em folhas de plantas aquáticas de Salvinia auriculata Aubl., visando fornecer subsídios para a utilização dessa espécie, no monitoramento da poluição ambiental, causada por esse elemento tóxico. As plantas foram cultivadas sob condições controladas, em vasos com solução nutritiva, e submetidas à aplicação de chuva simulada contendo KF, nas concentrações de 0, 13, 26 e 39 mM, pela manhã, durante cinco dias sucessivos. Os resultados evidenc...
關鍵字: aquatic
出版: Embrapa Informação Tecnológica
ISSN: 0100-204X
來源: DOAJ
System ID: 424924
203815
電子期刊
E. Fuentes, and H. Coe, and D. Green, and G. McFiggans
The effect of nanogel colloidal and dissolved organic matter <0.2 μm, secreted by marine biota, on the hygroscopic growth and droplet activation behaviour of the primary marine aerosol was studied. Seawater proxies were prepared by the combination of artificial seawater devoid of marine organics and natural seawater enriched in organic exudate released by laboratory-grown phytoplankton cultures, as described in a companion paper. The primary aerosol was produced by bubble bursting, using a plung...
關鍵字: marine
出版: Copernicus Publications
ISSN: 1680-7316
來源: DOAJ
System ID: 424923
203816
電子期刊
J.E. Baños, and M. Sentí, and R. Miralles
Introducción: Varios estudios han sugerido que el contacto precoz del estudiante de medicina con la realidad asistencial puede tener unos efectos beneficiosos sobre su motivación, el conocimiento de la relación médico-paciente y la aceptación de la importancia de las materias médicas básicas. En el nuevo grado conjunto de Medicina de la Universitat Autònoma de Barcelona y la Universitat Pompeu Fabra se ha incorporado una asignatura denominada 'Prácticas de Grado' que se imparte durante los tres ...
關鍵字: pilot
出版: Elsevier
ISSN: 1575-1813
來源: DOAJ
System ID: 424922
203817
電子期刊
A. J. Gooday, and F. Jorissen, and L. A. Levin, and J. J. Middelburg, and S. W. A. Naqvi, and N. N. Rabalais, and M. Scranton, and J. Zhang
Under certain conditions, sediment cores from coastal settings subject to hypoxia can yield records of environmental changes over time scales ranging from decades to millennia, sometimes with a resolution of as little as a few years. A variety of biological and geochemical indicators (proxies) derived from such cores have been used to reconstruct the development of eutrophication and hypoxic conditions over time. Those based on (1) the preserved remains of benthic organisms (mainly foraminiferan...
關鍵字: coastal
出版: Copernicus Publications
ISSN: 1726-4170
來源: DOAJ
System ID: 424921
203818
電子期刊
Aleksandra Kruczek
Aerobiological measurements were made by the volumetric method (VPPS Lanzoni and Burkard instruments). Concentrations of microscopic fungi were measured from April 16th to July 2nd, 2013, in two rooms of the Chair of Botany and Natural Environment Protection, Faculty of Biology, Szczecin University. The study was undertaken to perform mycological analysis of the air in selected rooms. Mycological contamination of the air in the surveyed areas was not diverse in terms of species composition. Near...
關鍵字: pilot
出版: Polish Botanical Society
ISSN: 0065-0951
來源: DOAJ
System ID: 424920
203819
電子期刊
Shajeda Akter Nishat, and Mohammad Morshad Alam
Antimicrobial resistance is a rising concern in the treatment of infectious diseases and the discovery of potential antimicrobial compounds is needed to combat against it. The focus of this study was the in vitro antimicrobial activities of Streptomyces obtained from the soil samples collected from different places of Cox’s Bazar, Bangladesh. A total of 156 isolates was obtained from thirty soil samples using two selective media namely yeast malt agar and starch casein agar. The isolates were m...
關鍵字: marine
出版: Bangabandhu Sheikh Mujib Medical University
ISSN: 2074-2908
來源: DOAJ
System ID: 424919
203820
電子期刊
Michaela Holubová, and Martin Čech, and Mojmír Vašek, and Jiří Peterka
Grouping behaviour, as fascinating as it is unclear, has lately drawn the attention of numerous researchers. While most of the authors focused their work on a mechanistic approach to the matter of schooling, this study explores the issue from a population point of view. Present camera observation study on the fish community carried out in the epipelagic habitat of a European temperate reservoir in the Czech Republic explored the relationship between density and aggregative features of predominan...
關鍵字: fish
出版: PeerJ Inc.
ISSN: 2167-8359
來源: DOAJ
System ID: 424918
203821
電子期刊
Fred Pailler, and Florian Vörös
Working from two ethnographic investigations of online sexualities, this article questions the affective dimension of online navigation. It articulates a spinozian and deleuzian approach to affect in digital media, in order to move beyond single effect models of communication, towards the situated description of multiple and imbricated forces that combine and interfere. This framework is applied to the sexualization of online navigation, understood as a dynamic entanglement of bodies, devices, i...
關鍵字: navigation
出版: Société Française de Sciences de l’Information et de la Communication
ISSN: 2263-0856
來源: DOAJ
System ID: 424917
203822
電子期刊
SUN Yifang, and JIANG Yichen, and ZONG Zhi
<b>[Objectives]</b> A T-foil with an active control system can provide higher lift force and improve the seakeeping of a ship. It is necessary to calculate the anti-vertical motion effect with the different control signals.<b>[Methods]</b> The motion responses of the Wigley model in different wavelengths among three different Froude numbers are obtained via the slender body theory, and the lift force model of a T-foil is established. The torque control is used to obtain the governing equation of...
關鍵字: ship
出版: Editorial Office of Chinese Journal of Ship Research
ISSN: 1673-3185
來源: DOAJ
System ID: 424916
203823
電子期刊
LU Yongjin, and WU Bo, and LI Taotao
In order to research on CATIA V6 ship duct design and related data,combined with a practical engineering background,a three-dimensional design method for the CATIA V6 ventilation system is exhibited,and the catalog composition of duct fittings and duct lofting process are presented. Meanwhile, revolving around the system design modules,the module processing objects and data storage location are analyzed in order to determine the object of study. And on this basis,the definition and specific cont...
關鍵字: ship
出版: Editorial Office of Chinese Journal of Ship Research
ISSN: 1673-3185
來源: DOAJ
System ID: 424915
203824
電子期刊
WU Xingya, and GAO Xiaopeng
To predict the maneuverability of full-revolving propeller ships, this paper analyzes the propeller force and establishes MMG equations for controlling motion mathematical models that are suited to the full-revolving propeller model, in accordance with the modeling method of the separating ship motion model and taking into account the special nature of the force and flexibility of a full rotation in the horizontal plane of a full-revolving propeller. Secondly, hydrodynamic force derivatives for ...
關鍵字: ship
出版: Editorial Office of Chinese Journal of Ship Research
ISSN: 1673-3185
來源: DOAJ
System ID: 424914
203825
電子期刊
Agustín R. Rodríguez González
La presencia del estado español en Guinea hasta 1900 se redujo básicamente a un destacamento naval, que cubrió necesidades muy diversas, aparte de las obvias de mantener el orden interno y evitar injerencias francesas. Además, los marinos participaron en las exploraciones y en la exigencia de una mayor implicación en el área.
關鍵字: naval
出版: Universidad Complutense de Madrid
ISSN: 0214-400X
來源: DOAJ
System ID: 424913
203826
電子期刊
Mohammad Ali Zazouli, and seied Mahmood mehdinia, and Farzaneh Tabarinia, and Davood Nasrollahpoor, and Hajar Tabarinia
&nbsp;&nbsp;&nbsp;&nbsp; Introduction: Heavy metals are one of the pollutants which are found in minor amounts in natural water and high concentration in industry waste water. Heavy metals poisoning effects are increasing in marine organisms especially fishes due to disposal of industrial wastes to marine environment and their bio accumulation. The aim of this study is to determine of mercury, cadmium and lead levels in canned fish sold in Mazandaran province of Iran. &nbsp;&nbsp;&nbsp;&nbsp; M...
關鍵字: fish
出版: Semnan Univeristy of Medical Sciences
ISSN: 1608-7046
來源: DOAJ
System ID: 424912
203827
電子期刊
N. Sujay Raghavendra, and Paresh Chandra Deka
This research demonstrates the state-of-the-art capability of Wavelet packet analysis in improving the forecasting efficiency of Support vector regression (SVR) through the development of a novel hybrid Wavelet packet–Support vector regression (WP–SVR) model for forecasting monthly groundwater level fluctuations observed in three shallow unconfined coastal aquifers. The Sequential Minimal Optimization Algorithm-based SVR model is also employed for comparative study with WP–SVR model. The input v...
關鍵字: coastal
出版: Taylor & Francis Group
ISSN: 2331-1916
來源: DOAJ
System ID: 424911
203828
電子期刊
E. Somers
This contribution gives an idea of the necessity of cooperation in the field of the law of the sea, ocean management and marine policy towards East Africa. It is demonstrated through a substantial analysis of the development of the law of the sea that such a cooperation on an academic level can be a valuable means for further development in these fields for Third WorldStates.A general description of a present cooperation project with Kenya is given as an example of this kind of approach.
關鍵字: marine
出版: Gents Afrika Platform, Afrika Brug
ISSN: 0772-084X
來源: DOAJ
System ID: 424910
203829
電子期刊
Wellem Anselmus Teniwut, and Marimin , and Taufik Djatna
Seaweed had proven to become a fisheries commodity to provide a significant multiplier economic effect for coastal community in Southeast Maluku District during 2005-2013. However, the declining on the productivity of seaweed has given a direct impact on welfare of farmers and coastal communities in this region during the recent years, due to asymmetric information on seaweed farming associated with prices, latest technology and all pre and post production activities. Thus, forming a dedicated i...
關鍵字: seaweed
出版: Growing Science
ISSN: 1929-5804
來源: DOAJ
System ID: 424909
203830
電子期刊
Witke-Woźniak Agnieszka, and Wychowański Michał, and Dąmbski Tomasz, and Szymfel Karina, and Kochański Tomasz
Introduction: Snapping hip syndrome (SHS) occurs in 5-10% of the global population. A back and forth skip of the tendon of the dysfunctional muscle across the osseous prominence is the most common symptom of this condition. Mainly young generation suffers from SHS. Depending on the structures that cause an audible snap, snapping hip syndrome may be classified into intra-articular and extra-articular types. The main aim of the research was to assess the strength of the major hip muscles and stati...
關鍵字: pilot
出版: Termedia Publishing
ISSN: 1734-4948
來源: DOAJ
System ID: 424908
203831
電子期刊
Saaidia Bachir, and Mahia Mohamed, and Chaab Salah
The population increase, urbanization and intensification of agriculture and demands for water supply in the coastal plain of Collo led to excessive pumping of the unconfined aquifer with limited dimensions. This study aimed to characterize the effect of the overexploitation of the groundwater from the only unconfined aquifer in the region, what resulted in the inversion of the groundwater flow and the rise the possible seawater pollution that is shown in the water table map. The causes and effe...
關鍵字: marine
出版: Sciendo
ISSN: 2083-4535
來源: DOAJ
System ID: 424907
203832
電子期刊
V. Gorelova, and O. Bastien, and O. De Clerck, and S. Lespinats, and F. Rébeillé, and D. Van Der Straeten
Abstract Tetrahydrofolate and its derivatives, commonly known as folates, are essential for almost all living organisms. Besides acting as one-carbon donors and acceptors in reactions producing various important biomolecules such as nucleic and amino acids, as well as pantothenate, they also supply one-carbon units for methylation reactions. Plants along with bacteria, yeast and fungi synthesize folates de novo and therefore constitute a very important dietary source of folates for animals. All ...
關鍵字: algae
出版: Nature Publishing Group
ISSN: 2045-2322
來源: DOAJ
System ID: 424906
203833
電子期刊
Lisa T. Hoglund, and Laura Pontiggia, and John D. Kelly
Abstract Background Patellofemoral joint (PFJ) osteoarthritis (OA) is prevalent in middle-aged and older adults. Despite this, there are minimal studies which have examined conservative interventions for PFJ OA. Weakness of proximal lower extremity muscles is associated with PFJ OA. It is unknown if a hip muscle strengthening and lumbopelvic-hip core stabilization program will improve symptoms and function in persons with PFJ OA. This study examined the feasibility and impact of a 6-week hip mus...
關鍵字: pilot
出版: BMC
ISSN: 2055-5784
來源: DOAJ
System ID: 424905
203834
電子期刊
Kimberly A. Null, and D. Reide Corbett, and Jared Crenshaw, and Richard N. Peterson, and Leigha E. Peterson, and W. Berry Lyons
Submarine groundwater discharge (SGD) measurements have been limited along the Antarctic coast, although groundwater discharge is becoming recognized as an important process in the Antarctic. Quantifying this meltwater pathway is important for hydrologic budgets, ice mass balances and solute delivery to the coastal ocean. Here, we estimate the combined discharge of subglacial and submarine groundwater to the Antarctic coastal ocean. SGD, including subglacial and submarine groundwater, is quantif...
關鍵字: coastal
出版: Norwegian Polar Institute
ISSN: 0800-0395
來源: DOAJ
System ID: 424904
203835
電子期刊
C. Tye, and R. Bedford, and P. Asherson, and K.L. Ashwood, and B. Azadi, and P. Bolton, and G. McLoughlin
Attention deficit hyperactivity disorder (ADHD) and autism spectrum disorder (ASD) are associated with varied executive function (EF) difficulties. Callous-unemotional (CU) traits, a proposed antecedent of adult psychopathy, are often associated with intact or enhanced EF. Here we test whether CU traits may therefore modulate EF in ASD and ADHD, in which EF is typically impaired. We collected CU traits and measured event-related potentials (ERPs) that index EF during a cued-continuous performanc...
關鍵字: pilot
出版: Elsevier
ISSN: 1878-9293
來源: DOAJ
System ID: 424903
203836
電子期刊
P. Fleming, and J. Annoni, and J. J. Shah, and L. Wang, and S. Ananthan, and Z. Zhang, and K. Hutchings, and P. Wang, and W. Chen, and L. Chen
In this paper, a field test of wake-steering control is presented. The field test is the result of a collaboration between the National Renewable Energy Laboratory (NREL) and Envision Energy, a smart energy management company and turbine manufacturer. In the campaign, an array of turbines within an operating commercial offshore wind farm in China have the normal yaw controller modified to implement wake steering according to a yaw control strategy. The strategy was designed using NREL wind...
關鍵字: offshore
出版: Copernicus Publications
ISSN: 2366-7443
來源: DOAJ
System ID: 424902
203837
電子期刊
Rajka Radoičić, and Bogdan Jurkovšek, and Divna Jovanović
A new species, Clypeina teakolarae, is described from the Lower Eocene of Čičarija, in Slovenia. The pattern of calcification, known so far only from the Upper Jurassic and the Lower Cretaceous, is structurally equal to that of the Clypeina jurassica group of species, having an intracellular, radial-fibrous calcite infilling and a micritic cell wall. Contrary to other species of the C. jurassica group, the main stem of the new taxon consists of spaced out twinwhorls bearing numerous, commonly ir...
關鍵字: alga
出版: Geological Survey of Slovenia
ISSN: 0016-7789
來源: DOAJ
System ID: 424901
203838
電子期刊
I. Cheng, and L. Zhang, and P. Blanchard, and J. Dalziel, and R. Tordon
Regional and local sources contributing to gaseous elemental mercury (GEM), gaseous oxidized mercury (GOM), and particle-bound mercury (PBM) at an urban coastal site in Dartmouth, Nova Scotia, Canada were investigated using the Concentration-Weighted Trajectory model (CWT) and Conditional Probability Function. From 2010–2011, GEM, GOM, and PBM concentrations were 1.67 ± 1.01 ng m<sup>−3</sup>, 2.07 ± 3.35 pg m<sup>−3</sup>, and 2.32 ± 3.09 pg m<sup>−3</sup>, respectively. Seasonal variability wa...
關鍵字: coastal
出版: Copernicus Publications
ISSN: 1680-7316
來源: DOAJ
System ID: 424900
203839
電子期刊
Leandro Bohnenberger, and Adriana Cristina Bordignon, and Leonardo Luiz Stringuetta, and Bruno Estevão de Souza, and Wilson Rogério Boscolo, and Aldi Feiden
The objective of this work was to evaluate the influence of fresh water shrimp Macrobrachium amazonicum (Heller, 1862) in performance of Nile tilapia (Oreochromis niloticus) cultivated in polyculture system and feeding with ration pelleted and mashed. The work was realized in Centro de Pesquisa em Aqüicultura Ambiental-CPAA/IAP – Toledo/PR during 37 days. Were utilized like experimental unit 16 ponds excavated, covered with concrete but with bottom of soil with dimension the 4 x 3 m and useful v...
關鍵字: shrimp
出版: Universidade Estadual de Londrina
ISSN: 1676-546X
來源: DOAJ
System ID: 424899
203840
電子期刊
B. Razavi sayad
lran's commercial catch on this fish commenced in 1971 and inspite of recent years endeavour to boost the development of kilka fishery , the catch didnot exceed 15 thousand tonnes by year 1991, In this regard a one year survey program conducted in 1991 data collected and stock status identified in Iranian coasline at areas with a seabed depth of 40 to 80 m, in 56 fishing stations spaced at 10 mile intervals along ihe coast. The survey showed that Clupeonella engruliformis is dominant (91,8 %) fo...
關鍵字: fishing
出版: Iranian Fisheries Research Organization
ISSN: 1026-1354
來源: DOAJ
System ID: 424898
203841
電子期刊
Ismaïla Sall, and Guillaume Durin
The coastlines and deltas of West Africa have suffered—and continue to suffer—significant environmental damage. Although they fulfill crucial functions, their mangroves have been subjected to widespread destruction. The Senegalese NGO Oceanium has been combatting this phenomenon since 2006 by sensitizing and involving the surrounding populations. The “Plante ton arbre” (Plant Your Tree) project is a rare example of the large-scale participatory restoration of a severely threatened coastal ecosys...
關鍵字: coastal
出版: Institut Veolia Environnement
ISSN: 1867-139X
來源: DOAJ
System ID: 424897
203842
電子期刊
Dean Vuleta
The jurisdiction and proceedings of the court in the process of forced sale of the ship are regulated by the provisions of articles 844.-847. of the Maritime Law of Croatia. Part of these provisions do not benefit to efficiency and the basic purpose of the procedure so there is a need for providing additional powers to the court by the legislature. It refers to the moment when the court should start with the implementation process of enforcement, which represents an important part of the whole p...
關鍵字: ship
出版: Pravni fakultet Sveučilišta u Splitu
ISSN: 0584-9063
來源: DOAJ
System ID: 424896
203843
電子期刊
Chalas Renata, and Orlowski Miroslaw, and Tarczydlo Bozena, and Zubrzycka-Wrobel Joanna, and Maj Karol, and Wojcik-Checinska Ilona
Research on the dental restorative materials employed in remedying dental cavities has been conducted on many levels and areas, both with application of clinical and laboratory methods. One of the elements that determines whether the restoration may be degraded is the condition of its surface. The aim of the study was to assess the texture surface of composite restorations using a non-contact method of teeth models scanning. In this work, ten medium size cavities on the occlusal surfaces of mola...
關鍵字: pilot
出版: Sciendo
ISSN: 2300-6676
來源: DOAJ
System ID: 424895
203844
電子期刊
Alegria Cristina, and Canavarro Teixeira Maria
Portuguese national policies for forests were developed considering related themes such as climate change, forest health, fire and the protective functions of forests. In Portugal, maritime pine forest is mainly private non-industrial and its area is in decline. Therefore, the aim of this study was two-fold: first, to assess maritime pine forest characteristics over a 19-year period; second, to analyse forest cover change over that period. In the end, the implementation of state policies was exp...
關鍵字: maritime
出版: Sciendo
ISSN: 0071-6677
來源: DOAJ
System ID: 424894
203845
電子期刊
Jamil H., and Kadir M., and Forsberg R., and Olesen A., and Isa M. N., and Rasidi S., and Mohamed A., and Chihat Z., and Nielsen E., and Majid F., and Talib K., and Aman S.
This paper describes the development of a new geoid-based vertical datum from airborne gravity data, by the Department of Survey and Mapping Malaysia, on land and in the South China Sea out of the coast of East Malaysia region, covering an area of about 610,000 square kilometres. More than 107,000 km flight line of airborne gravity data over land and marine areas of East Malaysia has been combined to provide a seamless land-to-sea gravity field coverage; with an estimated accuracy of better than...
關鍵字: sea
出版: Sciendo
ISSN: 2081-9943
來源: DOAJ
System ID: 424893
203846
電子期刊
Venus Bantoto, and Danilo Dy
關鍵字: algae
出版: Wolters Kluwer Medknow Publications
ISSN: 0972-9062
來源: DOAJ
System ID: 424892
203847
電子期刊
Sathianeson Satheesh, and Mohammad Abdulaziz Ba-akdah, and Abdulmohsin A. Al-Sofyani
In the marine environment, all hard surfaces including marine macroorganims are colonized by microorganisms mainly from the surrounding environment. The microorganisms associated with marine macroorganisms offer tremendous potential for exploitation of bioactive metabolites. Biofouling is a continuous problem in marine sectors which needs huge economy for control and cleaning processes. Biotechnological way for searching natural product antifouling compounds gained momentum in recent years becau...
關鍵字: marine
出版: Elsevier
ISSN: 0717-3458
來源: DOAJ
System ID: 424891
203848
電子期刊
J. B. R. Matthews, and J. B. Matthews
Discrepancies between historical sea surface temperature (SST) datasets have been partly ascribed to use of different adjustments to account for variable measurement methods. Until recently, adjustments had only been applied to bucket temperatures from the late 19th and early 20th centuries, with the aim of correcting their supposed coolness relative to engine cooling water intake temperatures. In the UK Met Office Hadley Centre SST 3 dataset (HadSST3), adjustments have been applied over its ful...
關鍵字: sea
出版: Copernicus Publications
ISSN: 1812-0784
來源: DOAJ
System ID: 424890
203849
電子期刊
Climate - the &quot;coarse-gridded&quot; state of the coupled ocean - atmosphere system - varies on many time and space scales. The challenge is to relate such variation to specific mechanisms and to produce verifiable quantitative explanations. In this paper, we study the oceanic component of the climate system and, in particular, the different circulation regimes of the mid-latitude win driven ocean on the interannual time scale. These circulations are dominated by two counterrotating, basis s...
關鍵字: ocean
出版: Copernicus Publications
ISSN: 1023-5809
來源: DOAJ
System ID: 424889
203850
電子期刊
Dagny Butler, and Ratnasingham Shivaji, and Anna Tuck
We study the positive solutions to the steady state reaction diffusion equations with Dirichlet boundary conditions of the form $$displaylines{ -u''= cases{ lambda[u - frac{1}{K}u^2 - c frac{u^2}{1+u^2}], & $x in (L,1-L)$,cr lambda[u - frac{1}{K}u^2], & $x in (0,L)cup(1-L,1)$, } cr u(0)=0, quad u(1)=0 }$$ and displaylines{ -u''= cases{ lambda[u(u+1)(b-u) - c frac{u^2}{1+u^2}], & $x in (L,1-L)$, cr lambda[u(u+1)(b-u)], & $x in (0,L)cup(1-L,1)$, } cr u(0)=0,quad u(1)=0. }$$ Here, ...
關鍵字: logistic
出版: Texas State University
ISSN: 1072-6691
來源: DOAJ
System ID: 424888