-
Review ArticleView abstract PDF Full textWHERE did it happen? b) How much oil has been spilled and WHERE is it going? c) WHAT may be impacted WHERE the oil may go? d) WHAT do you do about it? e) WHERE do you deploy your resources? f) HOW do you deploy your response resources? (Boats,boom, people, skimmers) g) WHERE do you deploy your resources FROM? (Boat Ramps, Marinas, Waterfront Access Locations) h) WHERE are the most sensitive resources (wildlife, socio- economic, habitat, etc?) i) HOW do you protect them?..... ReadMore
-
Review ArticleView abstract PDF Full textIn order to realize the safe, stable and reliable detection of water in long-distance water diversion project and avoid many problems in manual detection of drainage, the underwater vehicle suitable for the detection of long-distance water diversion project is developed...... ReadMore
-
Research ArticleView abstract PDF Full textThe Lake Kinneret Ecosystem has undergone significant modification since mid-1980`s which particularly were: The previous trophic status of Phosphorus limitation was modified to Nitrogen limitation; the long-term domination of Peridinium gatunenze (PRG) was declined and replaced by Cyanobacteria, Chlorophytes and Diatoms. The distribution enhancement of Harmful Cyanobacteria (HFCB) in Lake Kinneret initiated in summer 1994 when a bloom of Aphanizomenon ovalisporum was documented followed by several studies about the outbreak of HFCB were carried out [1,2]...... ReadMore
-
Mini ReviewA Critical Review on Biosurfactants Properties, Production, And Application in Enhanced Oil RecoveryView abstract PDF Full textThe world’s total primary energy consumption (TPEC) has recorded a steep rise within the last decades reaching 150,000,000 GW.h in 2015 [1]. About 57% growth of this value is expected by 2050 owing to the rapid industrial development and urbanisation that has occurred globally. Presently, fossil fuels including petroleum and natural gas are the main sources of energy [2]. According to the statistical review of the world’s energy, which is annually published by British Petroleum (BP), consumption of energy has extensively increased during the last decade [3]. The reasons for increases in energy consumption include industrial development, population growth and the inauguration of new technologies. Industrial developments in different applications require excessive energy for operations using either electricity or heating energies. Elect..... ReadMore
-
Mini ReviewView abstract PDF Full textGenerally, phytoplankton exhibits high species diversity and wide range of variation which makes them most successful primary producer in contemporary global oceanographic regimes. When compared to its counterpart of terrestrial ecosystem, phytoplankton species diversity is twelve-fold lower, however, taxonomic divisions are eight times higher than terrestrial plants. Therefore, it is important to investigate the detailed composition of phytoplankton and study their spatiotemporal distribution in the marine environment. In the present review, we have assessed the detailed community composition of cormophytic phytoplankton with their variability in the world oceans...... ReadMore
-
OpinionView abstract PDF Full textDecipher what the Earth’s ancient environment was like thousands, may be millions of years ago became one of the most objectives of paleontology and Archaeology. Nevertheless, the significant fluctuations of the microfauna contents and the dominance phases of alternation between benthic and planktonic foraminifera reveal changes as well in the depositional environment. The results of this study indicate that the supposed depositional environment is a calm and relatively deep environment which can be located around the middle to the external platform, where the depth of waters exceeds 200 m. These waters are characterized by a poor percentage in oxygen (Figure 1a)...... ReadMore
-
Research ArticleView abstract PDF Full textIn this paper, a probe on the impact of Hall effects on the flow of an oscillatory convective MHD viscous, incompressible, radiating and electrically conducting second-grade fluid in a vertical porous rotating channel in a slip flow regime is carried out. The fluid is assumed to be gray, absorbing and emitting radiation in a non-scattering medium. It is presupposed that MHD flow is laminar and fully developed. In order to use the regular perturbation technique, the solutions of velocity and temperature distributions for the governing flow are obtained. The profiles of velocity and temperature are presented graphically. On the other hand, the skin friction coefficient and the Nusselt number are evaluated numerically and presented in the form of tables, examined and discussed for various values of the flow parameters that govern it...... ReadMore
-
Mini ReviewView abstract PDF Full textIn recent years, the intensive study of deep-sea ecosystems (continental slopes, seamounts, depressions and troughs) of the world ocean has received increased attention due to the high level of endemism of their biota and extreme vulnerability to any impacts, especially from humans [1,2]. While in the past, researchers aimed to obtain knowledge, mainly on the qualitative and quantitative composition of the population of deep-sea ecosystems, at the present stage it is becoming increasingly important to assess the human impact on them, to ensure the conservation of biological and genetic diversity, the safe and sustainable use of biological resources and their protection from destruction in the course of human economic activities (fishing, mining, shipping, etc.)...... ReadMore