Research was conducted at Curtin University (Western Australia) to assess the seedling tolerance of three species Eucalyptus, gomphocephala DC (Myrtaceae) (common name ‘Tuart’), Eucalyptus marginata Sm. (common name ‘Jarrah’) and Corymbia calophylla (Lindl.) K.D. Hill & J. A. S. Johnson (common name ‘Marri’) to soil-induced stressor, namely water loggings (flooding). Flooding treatment was achieved by filling the tubs with water, approximately 1 cm above the soil surface and control treatment had the same method except with drainage holes. Study assessment was attained by statistical change in seedling growth, leaf allocation and leaf physiology after 70 days of seed germination. Tolerance was assessed by measuring changes in seedling growth, leaf allocation and leaf physiology after 70-80 days. C. calophylla was the most tolerant to prolonged waterlogging (80% survival, no difference in transpiration rates); E. marginata was the least tolerant (10% survival, 95% decrease in transpiration rate). E. marginata was the least tolerant to the three soil stresses. E. marginata prefers habitats that are not excessively wet on well-drained soils. C. calophylla was the most tolerant, occurring and tolerating wet, well-drained soils and thus demonstrated better physiological responses of three prominent studied eucalypts to soil-induced stresses provides us with invaluable knowledge for rehabilitating and restoring urban bush land.tolerance to prolong waterlogging. Knowing the seedling growth and

The paper has evaluated a sample of material which focuses on the teaching of vocabulary in Libyan Primary Schools. The major objective was to examine the underlying organising principles, teaching approaches and the learning processes, and to discover any shortcomings that might hinder the achievement of the intended outcomes. To fulfil this aim, as much information as possible was collected from various resources such as books, theses, study papers, journals and the World Wide Web. The discussion of the topic has covered three main points. They are a review of the relevant literature, analysis and evaluation of the material in question and, finally, suggestions of how this material might be improved. Because it was difficult to assess the material in isolation, reference to other involved factors such as the teacher, the student and the teaching/learning environment was occasionally made

Mobile augmented reality is growing rapidly because of the growth of smartphones. Due to the portable

nature of smartphones, mobile augmented reality devices have become the most widely deployed consumer

augmented reality display device and show promise for becoming the first commercial success for augmented

reality technologies. The role of the user is identified and forwarded to the respective module. Cognitive

engagement and interactivity are the main two factors of influenced learning where the engagements are focused in

Learnability identification module. When a common, single optical tracking platform is available the reachability

and performance can also be increased without affecting the efficiency, which will be done in AllinoneAR Module.

An integrated framework consisting of three above stated modules is proposed in this paper

l security perspective of Cloud computing with the aim to highlight the problem from the cloud stakeholders' perspective, and the cloud service delivery models perspective. The paper aims also to introduce the mechanisms used to secure cloud computing applications as well as to compare some providers of cloud computing field with each other in general and security aspects. 

The use of gas for power generation is likely to increase in the medium term. Also, the introduction of new fuels will ensure a higher generation with lower emissions under continuous operation. These scenarios lead to the conclusion that there will be a considerably more diverse range of fuel supply. However, the use of these new fuels contrasts with recent experiences of global operators who report increasing emissions and difficult combustion dynamics with even moderate variations in their fuel characteristics. Clearly there are significant challenges for fuel flexible gas turbines, particularly emission control, combustor dynamics and flame stability.

Trials using a power derivative gas turbine combustor and a high hydrogen content fuel produced unusual flashback events, in that flashback was induced by either leaning of the fuel mixture by the increase of combustion air, or by a change in composition through the reduction of methane pilot fuel. The introduction of CO₂ through the combustors pilot injector prevented flashback from occurring under these circumstances. The resulting reduction of temperature in the combustion zone, indicated by lower burner tip temperatures causes a reduction in the emissions of nitrous oxides, whilst there is minimal effect on the effective turbine inlet temperature, only a 2.3% reduction.

Investigations using a ‘generic’, radial swirl burner and stereo PIV demonstrated how the flashback depended on a combination of flow structure augmentation and changes in mixture burning rate. The injection of methane or CO₂ had differing effect on these parameters of the combustion zone, but both produced combinations that facilitated stability.