The aim of this research is to identify the possible indicator threats that affect Al Ain Oasis along with the preservation methods taken by the responsible authorities. The goal is to achieve a proposal that limits these threats and find a way to make the preservation of natural heritage more sustainable which will be a lesson shared with the next generation.
The purpose of this study is to gather empirical evidence from the UAE to discover the relationship between business professionals' emotional intelligence and their ability to achieve a healthy worklife balance, within the context of UAE culture. A few similar studies about this topic have been conducted in the west, but there is a need to address the issue of work-life balance in this region to capture the cultural challenges that individuals face in the Arab and Islamic world. This paper lists the main theories related to the topics of work-life balance, emotional intelligence, and national culture. A mixed methodology is proposed to address this research problem. The study's anticipated results are discussed briefly as well.
The foundation of Oil in the early 1970s in UAE change the country from a subsistence level to a considerable affluence. All those changes attract foreign investments to the country which result in the need of skilled labours to run the organizations due to lack of skilled national labours on that period. Through the years the total dependence on foreign labours results in increasing the unemployment rate among Emiratis due to different reasons. All researchers were mentioning the reasons and the challenges in general basis but my concern and question are does this challenges apply to all industries in private sectors. Adding to that there are different challenges facing Emiratis in accepting the private sector jobs and here where I want to examine and find if these challenges faced by all Emiratis or does it differentiate from city to other.
This paper presents a quantitative research done to find out if project managers with different years of experience perceive the probability of project cash flow risks differently. Our results show that project managers in different experience groups do not differ in their awareness of probability of occurrence of cash flow risks.
Ground penetrating radar (GPR) are a useful and widespread geophysical tool for investigation of the shallow subsurface geological environment on Earth. GPR studies provide valuable insight into the physical properties of rock layers and their distribution within the shallow underground, and as a consequence a better understanding of the geological processes affecting a specific area. The research aims at studying, through a series of laboratory experiments, the suitability and potential of geo-radar in identifying gypsum rock, and associated karsts and sinkholes. These type of geologic features are not only a known hazard for Abu Dhabi, but previous research works highlighted the presence, on Mars, of karst-like landforms and morphologies that strongly resemble the karst morphologies found on the Earth. The research is carried out by building a laboratory analogue of the subsurface of Abu Dhabi. The results of this research can be used, on the one hand, to determine the suitability of GPR when identifying local gypsum rocks and karsts and develop recommendations for more extensive GPR karts detection field studies for field surveying, during planning and construction phases of large infrastructures projects, such as highway, metro, railway. On the other hand, these initial experiments will serve as basis for more advanced experiments on the use of GPR, and other geophysical techniques for characterization of the shallow underground of other planetary surfaces, which could be of interest, for example, for the Mars exploration program.
Water vapor in the atmosphere is a natural resource equivalent to about 10 % of all fresh water from rivers and lakes on Earth. Using cloud-seeding materials as cloud condensation nuclei (CCN) is an effective method to accelerate the formation of water droplets, and then harvest the water vapor in the atmosphere via rain precipitation. Hence, it is considered as the most promising water-augmentation technology to serve several weather modification purposes. It is crucial to understand and master these processes and capabilities to combat the current frequent occurrence of the extreme weather patterns around the world.
Ecohydrological models have been extensively used to investigate the role of abiotic stress in shaping plant-water interactions and ecosystems productivity. In this context, the research effort has mainly focused on water-limited ecosystems under the hypothesis that water scarcity is the main source of stress. However, a number of ecological and plant physiological studies have pointed out how soil salinity represents a crucial stress factor for vegetation in salt-affected soils - estimated to cover already over 9 billion ha worldwide - and coastal ecosystems. The objective of this study is to model the effects of salinity on plant-water relations in order to better understand the interplay of soil hyperosmotic conditions and osmoregulation strategies in determining different transpiration patterns. Salinity reduces the water potential, therefore is expected to reduce stomatal and plant conductance (eventually leading to cavitation for very high salt concentrations). Also, plant adaptation to short and long-term exposure to salinity comes into the picture to maintain an efficient water and nutrients uptake. We introduce a parsimonious soilplant- atmosphere continuum (SPAC) model accounting for both salt-exclusion at the root level and osmoregulation - i.e. the adjustment of internal water potential in response to salt-stress. The model is used to interpret a paradox observed in salt-tolerant species where maximum transpiration occurs at an intermediate value of salinity, and is lower in more fresh and more saline conditions. Such non-monotonic transpiration-salt concentration patterns can be largely explained by plant osmoregulation, while the peak of transpiration at tends to disappear over longer time scales, when ionic stress appears and morphological adaptations become predominant. Osmoregulation emerges here as a water-saving behavior similar to the strategies that xerophytes use to cope with aridity. The maximum of transpiration at is thus the result of a trade-off between the enhancement of salt-tolerance and optimal carbon assimilation.
In day to day life the use of water has increased for domestic, industrial, agricultural purposes. Due to the rapid increase of the population and industrialization, that makes water an important resource to mankind making it essential to socio-economic sectors, this implies that any improvements regarding it's quantity is interconnected with future growth. Rainfall is a highly variable non-continuous process in space and time, the constant alteration between dry and rainy periods is called rainfall intermittency. This variation makes intermittency a difficult element to take into account in rainfall modeling. Also, this property of rainfall also plays a factor of uncertainty in forecasting. This contribution would play a role in understanding the link between intermittency and aridification, this would be vital for water limited regions, helping with hydrological forecasting and water management. Hence, due to the little progress done in literature, this could turn into a stepping stone.
Crude glycerol is the byproduct of the biodiesel production at a rate 10-20 depending on the process. As biodiesel is been pursued as strong alternative to petro-diesel due to fear of fossil fuel deletion and climate change glycerol production is at rise. Transesterification process is the most popular biodiesel production method and stochiometrically, one mole of glycerol is generated for each mole of lipid/triglyceride feedstock or per three moles of produced biodiesel. The quality and quantity of glycerol byproduct has been a burden for purification or direct combustion. Understanding the chemical and physical properties of this crude helps in proper utilization process. Thermal analysis techniques evaluate the physical and chemical properties of materials as a function of temperature or isothermally as a function of time in control conditions. The thermal behavior of pure, crude glycerol, and in comparison to diesel combustion process is investigated via thermogravimetric analysis. Results shows the single event devolatalization that emerges into combustion for the pure glycerol. The curd however was characterized with multiple events indicating its mixture status it also exhibited three combustion events. These behavior was clearly very different from diesel combustion.
In the current study, a numerical model is formulated to investigate the effects of water invasion in complex micro-channels found in sub-surface structures. The formulation is based on Level-Set Multiphase Flow model where oil displacement phenomenon is studied using external water flooding. In sub-surface flow, effects of different ratios of water volume-fraction at inlet was studied. It is found that in micro-channel for sub-surface structures, displacement efficiency in micro-channel increase with the increase of volume fraction of invading water .
