Abstract:The analysis of cardiovascular diseases which includes atrial fibrillation (AF) is a technique that frequently calls for visual inspection of Electrocardiogram (ECG) alerts through specialists.
In this article, we classify brief segments of ECG into four classes (AF, regular, different rhythms or noise) as part of the Physionet Computing in Cardiology Challenge 2017. We evaluate ECG signals using scalogram as images characteristic primarily based classifier with convolutional neural network (CNN) techniques (GoogLeNet and AlexNet CNN deep learning). Both technique had been trained the usage of the data Challenge 2017 used is 8,528 in the public learning set and hidden data set.
Experiment on four classes ECG records classification reports 96.99%   and 97.08% Accuracy scores as results of GoogLeNet and AlexNet CNN deep learning respectively.
Keywords:Electrocardiogram (ECG), classification, Deep learning techniques.

Abstract:Ethiopia's water resources, as in many other regions of the world, are facing many challenges especially from climate change, which is one of the dynamic processes impacting water resources. Other processes such as population growth, increasing water demand, overexploitation of natural resources and environmental degradation have also significantly degraded the world’s freshwater resources. This paper presents the nexus of water resources and climate change in Ethiopia. It uses the existing knowledge from relevant literature. It focuses on the water resource potential, trend and future projection of climate condition. Sensitivity of some specific water resources to current climate variability and future climate change are also discussed. Planned adaptation in the water sector and prospects for technological, infrastructural, social, institutional interventions that can improve future water resources management in an era of climate change are highlighted. Interventions that support the development of robust water resource systems that take water infrastructure options with emphasis on water storage are provided. Finally, the implications for future development and research are stressed.
Keywords:Climate change, Lake, River, Water Resource.

Abstract:With the acceleration of the depletion of international energy resources and the increasing deterioration of the environment, renewable development has grown to become a typical understanding of the idealistic strategy for human long - term development. In recent years, green building has been the hot test key word in building industry. As urban building progresses rapidly, urgent demand has been placed on green building. Over the past few years, green buildings have become a component that is very important to achieve greater durability through much more use that will be effective from natural sources.  As a general result of helping develop green building basic concepts, several countries have set up their green building councils and guidelines.Therefore, the present study is to be carried out in terms of the assessment of green buildings and the common materials used in it. First, the essence of green building is defined Some developing countries need to create a platform for more effective use of green building guidelines. Therefore, these developing countries certainly need to create a use platform to speed up the use of these green building guidelines. Environmental issues, including climate change, fresh water supply and global warming, have recently become an issue that is certainly essential. Nevertheless, it remains for humanity to damage nature and waste natural resources. Considerable amounts of water use and energy consumption worldwide are a consequence of buildings and in addition a large component of human life time is actually invested in buildings. All of these reasons lead to the world of green buildings that are environmentally friendly, comfortable, sustainable, energy - efficient and low consumption structures. Developed countries have complete knowledge of green building and sustainability concepts, as well as working with this awareness for over two decades. They founded various environmental assessment systems. The essence of green building is to serve people, stressing sustainable building development. In addition, the nature, development and difference in building energy saving and smart building. Modern green buildings have the virtues of conserving energy and protecting the environment.They tend to be contemporary building's growth. The current work presents green building characteristics.
Keywords:environment, green building, building industry, green building guidelines.

Abstract: This research studied the purification of used mobil oil by acid/clay, acid/charcoal and acid/clay/charcoal methods; and each method used three different acids (sulfuric acid, hydrochloric acid and acetic acid) as washing agents respectively. Both used and purified oil samples were characterized to determine their physicochemical properties for easy comparison with those of the fresh and standard oils respectively. The results obtained indicated that during usage, properties of fresh mobil oil such as specific gravity and sulphur content increase while viscosity, flash point and fire point decrease. The deviation of these properties from normal revealed that the oil got contaminated with worn out metal parts, dust particles and other impurities during use; which meant while the lubricating property of used mobil oil decreases, its polluting effect or ability increases. The purification processes using any of the methods was successful in recycling the used oil as indicated by the fact that the physicochemical properties of purified mobil oil tends to be closer to those of the fresh oils. The effectiveness of all the methods was compared and it showed that acid/clay method using sulfuric acid is both the best method and acid; since it gave the most acceptable purified mobil oil.  
Keywords: Lubricating oil, Mobil oil, Purification, Acid/clay method, Sulfuric acid.