KNN Algorithm Used for Heart Attack Detection

Machine Learning, a branch of artificial intelligence, has become more accurate than human medical professionals in predicting the incidence of heart attack or death in patients at risk of coronary artery disease. In this paper, we attempt to employ Artificial Intelligence (AI) to predict heart attack. For this purpose, we employed the popular classification technique named the K-Nearest Neighbor (KNN) algorithm to predict the probability of having the Heart Attack (HA). The dataset used is the cardiovascular dataset available publicly on Kaggle, knowing that someone suffering from cardiovascular disease is likely to succumb to a heart attack. In this work, the research was conducted using two approaches. We use the KNN classifier for the first time, aided by using a correlation matrix to select the best features manually and faster computation, and then optimize the parameters with the K-fold cross-validation technique. This improvement led us to have an accuracy of 72.37% on the test set.

Feasibility of recycling concrete construction waste in environmental and economic sides

n light of the conditions experienced by Syria and due to the destruction and demolition of its buildings built up rubble and occupied a large area of its territory. Therefore, it was necessary to develop an appropriate strategy to study these debris and provide the ideal solutions to be able to benefit from them as much as possible and thus mitigate the harmful impact on the environment and the surrounding environment. The work is divided into two parts: First: The study focuses on one of the mechanisms of benefiting from the recycled aggregate by using them in producing concrete, after studying their characteristics(Sieve Analysis-density- Absorption) and then mixing them with natural aggregate as replacement of natural coarse aggregate at different rates(15-30-45-75-100)%. Six concrete cubes were made for each mixture and 3 cubes were broken after 7 days and the other after 28 days . it was concluded The relationship between the percentage of recycled aggregates and compressive strength, as well as the relationship between the percentage of stones and the rate of Absorption The results showed that the acceptable percentage of replacement of natural aggregates with recycled aggregates may reach 100% with the recording of values of resistance of up to 21.9Mpa . Second :The environmental and economic feasibility of using recycled aggregates has been studied the results showed that use 75% of the recycled aggregates in structural concrete works will reduce energy consumption and carbon dioxide emissions by 28% and 33%, respectively, and the economic saving rate is 63.71%. . Through this study two objectives can be achieved: First: removing large quantities of environmental pollution sources resulting from these wastes and thus achieving an environmental goal. Second: Provide other sources of concrete aggregates and thus protect the natural quarries and achieve an economic goal.

USRP Implementation of Spectrum Sensing OFDM-Based Cognitive Radio Networks Using Energy Ratio Algorithm

This paper explains the Universal Software Radio Peripheral (USRP) Experiment results of Spectrum Sensing Algorithms based on the Energy Ration Algorithm for Cognitive Radio Networks which is latterly suggested in Spectrum observation for OFDM-Based Cognitive Radio Networks by using Energy Ratio Algorithm. This is completed through detecting the variance in the strength of the signal during a variety of confined OFDM subcarriers are used to ensure that the availability of the essential user is facilely discovered. Extensive experiments are performed, in particular, the effects of Signal to Noise Ratio (SNR). This paper observed that the experimental results gave lower detection performance compared to the simulation results. That’s due to existence of other systems which operate on same frequency band of 2.4GHz.

Interconnection In the Convergence Era (IP-BASED Interconnection Regulation Challenges)

The IP age of networks and services is increasing very quickly. Starting from its VoIP, NGN, and IMS to today's IP services landscape, which includes fixed and mobile high-definition (HD) voice, HD video calling, unified communications (UC), video conferencing, and telepresence, cooperation, instant messaging (IM), and the rich communication suite (RCS). Convergence is one of the most significant current trends in the ICT sector. It has changed the way services are delivered and obscured the distinction between fixed and mobile services. The transition to Next-Generation Networks (NGN) is the most important next phase in the ICT sector's convergence-driven evolution. In the realms of NGN, VoIP, and IMS, there is no PSTN equivalent; instead, there are "IP islands " that locate the total value of an IP service. The next basic step is to expand the arrive of those services across a totally interconnected cross-network premise in order to maximize their overall esteem among their target audiences. The liberalization of infrastructure services depends on managing the interconnection interface between the competitive and regulated sectors. These paper outlines regulation issues raised by IP-based interconnection and examine the current practices and procedural ways that being developed to address these concerns.

Design and Implementation Automated Egg Incubator

Artificial egg incubators are devices used for incubating and hatching eggs through preservation the required conditions for fetus development inside the egg .Generally this paper aims to design and implement an egg incubator system in order to provide adequate conditions for egg hatching and to meet the growing market needs for locally grown white meat at reasonable prices, This system use software program for controlling in the temperature and humidity using the proteus program and Arduino ide. The system of this incubator is based on two Arduino boards one of which is Arduino nano reads the temperature and humidity values inside the incubator chamber through sensor dht11 and it is displayed 16x2 display screen When this value is more than the maximum or less, then the bell give sound to be an indication of the exceeded permissible values and the controller processes the increase in the case of temperature by operating fans to expel and distribute the air. However, in the case of low temperature or humidity, the heater operates and pushes an amount of hot and steam into the inside incubator that make temperature and humidity high, it controls the motor that turns the eggs to change their position in order to prevent the embryo from sticking to the shell and. the electronic lock that makes the incubator door limited to the person responsible. The research would be a user-friendly product as it is manufactured in a limited and small size and can be transported to other locations with minimal user handling.

شكل المسقط الأفقي الأمثل لصالة الصلاة بالمساجد

المساقط الأفقية "خارطة المباني" لها أشكال مختلفة (مستطيل، مربع، مثلث، بيضاوي، ثماني، دائري ... الخ) تنبع من أفكار المصمم، وكذا تحكمها اختلافات وظائف المباني المعنية حسب الخدمة المرجوة منها، ووظيفة المسجد في المقام الأول تعبدية تتمثل في الصلاة وغيرها من حلق العلم والأذكار، وعلى الباحث أو المصمم أن يتجنب بعض أشكال المساقط الأفقية التي لا تتواءم ووظيفة قاعات الصلاة، ومشكلة الدراسة تتمثل في وجود بعض الأشكال الهندسية غير المناسبة للمساقط الأفقية لهذه القاعات، وتهدف الدراسة إلى رصد وتحليل وتقييم أشكال المساقط الأفقية المستخدمة في مساجد منطقة الخرطوم لتحديد الشكل الأمثل من حيث الملاءمة الوظيفة لهذه الشعيرة المهمة، وتم تحقيق الدراسة وفق منهجية تحليلية تأصيلية رجوعاً لما نصت عليه التشريعات الإسلامية واستناداً إلى المعيار الأمثل الذي يخدم الوظيفة المتمثلة في الشكل الهندسي المناسب للمسقط الأفقي لقاعة الصلاة بالمسجد وذلك وفق دراسات للأشكال المختلفة التي تطرق لها الباحث ومعرفة سلبياتها وايجابياتها للخروج بنتائج وخلاصات تحقق أهداف البحث ألا وهي التوصل إلى الشكل الأمثل والأحسن الذي يخدم وظيفة شعيرة الصلاة من تراص وتساوي للصفوف مع أداء الحركات والسكنات الأخرى المختلفة، وتخلص الدراسة بأن الشكل الأفضل والأمثل للمسقط الأفقي الذي تم التوصل إليه هو الشكل المستطيل الذي يتعامد ضلعه الأطول على اتجاه القبلة.

Performance of Structures with Floating Columns System Subjected to Lateral Loads

Increasing population and scarcity of spaces in commercial districts, especially in the city center where crowding and number of cars require more parking spaces, and also the need for large areas un-interrupted by columns within the building, it was essential to find innovative structural design to fulfill these requirements. This was achieved by abandoning the continuity of some columns and replacing them with transfer beams that transfer their loads to the adjacent columns. In this paper the effect of wind loads on a building containing a floating column has been studied using ETABS program, three buildings of different heights were studied (G+5, G+10 and G+15). The wind loads were assumed to be resisted by the rigid frame system for one case of analysis and by the shear walls system at another case and compared models with others without a floating column to determine the percentage difference between them. Also the results were compared with the permissible limits ​​in a number of parameters such as Drift, P-Delta, Soft Story and Torsional Irregularity. A number of results were obtained, the most important are that there are no major differences between (floating column) building and (normal) building, they behave almost the same. The use of the shear walls system reduces the difference in results, especially in the soft story item. Also, the difference between the results of the floating column building and the normal building were found to decrease as the number of stories increased.

تأثير إستخدام خبث أفران مجموعة جياد الصناعية على جودة الخرسانة

The need to produce high performance concrete led the researchers to try to exploit the potentialities of natural or artificial materials so as to improve the properties and performance of concrete. Slag is an industrial disposal which considered as a secondary product of pig-iron, these disposal will cause a severe harm to the environment in case of not get rid of it. In this investigation iron furnace slag which is produced at Giad Group - Iron Factory has been used as an alternative of proportion on cement after being processed, since its main oxides are similar to those of cement. In the practical part of our research slag has been added to the concrete mix in two ways, first by using it to replace as cement by weight as a substitutions of cement in different percent [10, 20, 30]% without changing in water-cement ratio [W/C], second by using the slag with the same previous percentage in addition to [15, 25]% to replace cement with reducing in water-cement ratio [W/C], and in addition superplasticizer [SP 901] has been added as percent from cement used in the mixture. The effect of slag was studied on the properties of fresh and hardened concrete including slump test and compressive strength in [7, 14, 28] days were investigated. The results show improvement in all concrete specimens for the added percentage of the slag as replacement materials and the addition of superplasticizer in the production of concrete and improvement in its properties. However, there is a gradual reduction in slump measurements due to slag percent increase in case of the two methods.

Foundations, Design, and Dynamic Performance of Wind Turbines: Overview and Challenges in Sudan

Sudan is one of the developing countries that suffers from a lack of electricity, where the national electrification rate is estimated at 38.5%. In order to solve this problem, it is possible to use renewable energy sources such as wind energy. Beside many aspects to be considered at the design of wind turbine foundations, more attention should be given to the geotechnical part. There are many types of foundations for wind turbines. The foundation must satisfy two design criteria: 1) It should be safe against bearing failure in soils under design loads and settlements during the life of the structure must not cause structural damage; 2) In addition to static loads, wind turbine foundations loads are extremely eccentrically and the loading is usually highly dynamic. Therefore, the selection of foundation type should consider these two criteria taking into account the nature and magnitude of these loads. This paper presents a review of different types of wind turbine foundations of focusing on on-shore wind turbine foundation types and the dynamic response of wind turbine. The paper also demonstrate experimentally the dynamic response of the wind turbines using wind tunnel facility test on a scaled model.

Characterization of Gum Arabic As Viscosity Modifying Agent (VMA) for Producing Self-Compacting Concrete (SCC)

This study aims at finding alternative indigenous Sudanese material for concrete admixtures that are necessary for casting concrete in hot weather of the Sudan. The objective of this study to classify Gum Arabic (GA) namely, Acacia Senegal (known locally as Hashab Gum) as viscosity modifying admixture (VMA) for lowering powder content in self compacting concrete (SCC). The methodology of the study is based on the European standards BS EN 934-2 & BS EN 480-15 that are used as a paradigm to classify GA as the VMA. Three trial SCC test mixes containing different quantity of cement, namely (400, 370 and 350) Kg/ as powder content. A dose of GA 0.2% by weight of cement is applied after being dissolved in water at a concentration of 30% by water weight. The water/cement ratio (W/C) is kept constant as 0.45 for all mixes. The results of this study showed that the 0.2% GA dosage is appropriate and satisfied all criteria set by BS EN 934-2: 2009 for VMA. Using 0.2% GA as VMA lower the powder of SCC from 400kg to 350kg/ while maintaining the SCC fresh properties.