Used cooking oil as a source for biodiesel blend

With the depleted world petroleum reserves and increase demand for oil as a fuel, it has become imperative to investigate the possibility of using non-fossil fuel as an alternative fuel for diesel engine. Therefore, this paper describes the experimental investigation on possibility of producing biodiesel from used cooking oil and their properties, characteristics and performance as a blended biodiesel for diesel engine at constant speed. Properties analysis of biodiesel from used cooking oil in accordance to the ASTM D6751 specification showed that it fulfilled the requirements of a biodiesel fuel specification. Comparison also conducted between the ordinary diesel as a standard fuel and several set of blended biodiesel range from I% to 5% volume of biodiesel. The properties of blended biodiesel were not much different to the properties of conventional diesel fuel except the density and specific gravity. The density of diesel is 0.8358 gm/cc and the biodiesel is 0.8723 gm/cc. For blended biodiesel, it's slightly increased from 0.8363 gm/cc for I% to 0.8385 gm/cc for 5%. The results from Detroit Deisel Engine performance test showed that the blending fuel sample produced almost the same performance characteristics as compared to conventional diesel. As a result, blended biodiesel with used cooking oil is suitable to be used up to 5% as a fuel for diesel engine at constant speed and gives the same engine performances as conventional diesel fue

Reliability study on the adaptation of Dijkstra’s algorithm for gateway KLIA2 indoor navigation

This paper describes a reliability study on the adaptation of Dijkstra’s algorithm (DA) in the indoor environment for navigation purposes. Gateway KLIA2 located at Sepang, Selangor, Malaysia has been chosen as the area for case study. Gateway KLIA2 is divided into 4 levels but this research focused on Level 2 only that consists of 129 shop lots. A survey conducted towards 68 public respondents before the adaptation and most of them responded that they are not aware of the surrounding of KLIA2 and are facing difficulties in finding the information or location of certain places inside the building. DA was chosen because it helps the users to navigate using the shortest path to destination. It is proven that through the adaptation of DA, we are able to provide the shortest distance for indoor navigation from current location to the destination location. G-INS is reliable based on the functionality and reliability testing conducted towards 15 users with the distance reduction of 47% t-test result of 0.01303 (p less than 0.05), indicates the system is accepted

Effect of Interphase Region and Neighboring Particles on Electric Field Intensity within Nanocomposite Systems

Recent works show that the presence of the interphase surrounding nanoparticles can improve the dielectric properties of nanocomposites. Also, neighboring particles in the nanocomposites affect the electric field distribution. Therefore, the objective of this paper to model and analyze the effect of onedimensional (1D) nanofillers towards the electric field distribution when the interphase and neighboring are taken into account inside the nanocomposite system. By using Finite Element Method Magnetics (FEMM) 4.2 software, a model of nanocomposites system consists of polymer matrix, nanoparticle filler with interphase and neighboring particles is modeled under the electrostatic problem module. Electric field intensity is observed with different distance between adjacent nanoparticles and interphase region permittivity values. The result obtained show that the presence of the interphase with various permittivity value will result in distorted electric field intensity surrounding a nanoparticle. Furthermore, the electric field intensity also affected when adjacent nanoparticles displaced between each other within nanocomposites

Distribution Voltage in DC Micro-grid System based Solar PV Topologies Configuration in Sarawak, Malaysia

In the past few decade, longhouse communities in the rural area of Sarawak has been experienced the limitation of electricity supplies. Due to geographic of Sarawak, supply electricity to these rural areas from utility grid through transmission lines also will only results in many losses, the initiation of utilize solar as prime sources is favourable solution. The implementation of DC microgrid system for this area will achieved, as the solar PV system is a DC source to generate electrical supply for appliances in longhouse communities. However, the tropical climate and geographical in Sarawak such as the inconsistent solar radiation, changing temperatures, high humidity and heavy rainfall will be the main restrain to implement solar DC microgrid system. Thus, this paper proposes a comprehensive study about the voltage distribution of DC microgrid configuration in order to investigate system the reliability and efficiency. The configuration of DC micro-grid model has been designed using MATLAB Simulink and an experimental presenting the Simulink also has been developed for validation purposes. The obtained simulation and experimental results confirm that the proposed configuration of the ring system with multiple-sources is more reliable and efficient than radial system with multiple-source configuration in terms of DC voltage distribution at different buses. Thus, the proposed configuration is more reliable according to voltage distribution at each buses

A feasibility study of low-power laser trepanning drilling of composite using modified DVD writer

In the present study, laser cutting of cotton fiber composite laminate is experimented using a modified DVD writer drive. A 250 mW diode laser is initially extracted from a DVD writer drive, and then regulated by a custom-made laser driver circuit designed using a Proteus® software. Experimental tests are carried out using multi-pass laser trepanning drilling at different drilling speeds and standoff distances (SODs). The cut quality is evaluated by measuring the extent of both oxide and resolidified resin regions. It was discovered high speed of trepanning drilling and positive SOD significantly improve cutting region quality. Furthermore, positive and negative SODs require relatively high number of passes at different drilling speeds. From SEM micrographs, it is found out that the crack formation and fiber protruding happen in thedrilling area due to thermal stresses and matrix vaporization

Оценка инновационной деятельности медицинских учреждений Казахстана

The article considers main tendencies of development of health of the Republic, the analysis of innovative activity of Kazakhstan medicine. The article reveals the essence and necessity of introduction of innovative technologies, which in modern conditions is one of the priority factors of organizational culture change. The ever-changing conditions in the world lead to the emergence of new health professions and, according, is not only innovative approaches to education and competencies of professionals, but also to diversify the existing medical staff, who will be able to solve the burning problems faced by medical institutions.У статті розглянуто основні тенденції розвитку охорони здоров'я в Республіці, здійснено аналіз інноваційної діяльності в медицині Казахстану. Розкрито сутність та необхідність впровадження інноваційних технологій, що в сучасних умовах є одним із пріоритетних напрямів зміни організаційної культури. Визначено, що умови сьогодення призводять до появи нових медичних професій, що дозволяє диверсифікувати медичний персонал та спрямувати його на вирішення актуальних проблем медичних установ.В статье рассмотрены основные тенденции развития здравоохранения в Республике, осуществлен анализ инновационной деятельности в медицине Казахстана. Раскрыта сущность и необходимость внедрения инновационных технологий, что в современных условиях является одним из приоритетных направлений изменения организационной культуры. Определено, что условия настоящего приводят к появлению новых медицинских профессий, что позволяет диверсифицировать медицинский персонал и направить его на решение актуальных проблем медицинских учреждений

Оценка инновационной деятельности медицинских учреждений Казахстана

The article considers main tendencies of development of health of the Republic, the analysis of innovative activity of Kazakhstan medicine. The article reveals the essence and necessity of introduction of innovative technologies, which in modern conditions is one of the priority factors of organizational culture change. The ever-changing conditions in the world lead to the emergence of new health professions and, according, is not only innovative approaches to education and competencies of professionals, but also to diversify the existing medical staff, who will be able to solve the burning problems faced by medical institutions.У статті розглянуто основні тенденції розвитку охорони здоров'я в Республіці, здійснено аналіз інноваційної діяльності в медицині Казахстану. Розкрито сутність та необхідність впровадження інноваційних технологій, що в сучасних умовах є одним із пріоритетних напрямів зміни організаційної культури. Визначено, що умови сьогодення призводять до появи нових медичних професій, що дозволяє диверсифікувати медичний персонал та спрямувати його на вирішення актуальних проблем медичних установ.В статье рассмотрены основные тенденции развития здравоохранения в Республике, осуществлен анализ инновационной деятельности в медицине Казахстана. Раскрыта сущность и необходимость внедрения инновационных технологий, что в современных условиях является одним из приоритетных направлений изменения организационной культуры. Определено, что условия настоящего приводят к появлению новых медицинских профессий, что позволяет диверсифицировать медицинский персонал и направить его на решение актуальных проблем медицинских учреждений