International Journal of Students' Research in Technology & Management, Vol 1 (6) December 2013
1. A STUDY ON MECHANICAL PROPERTIES OF CEMENT CONCRETE BY PARTIAL REPLACEMENT OF FINE AGGREGATES WITH BOTTOM ASH
Sandhya B and Reshma E.K.
Abstract: Bottom Ash is a new waste material and abundantly available. It is a solid residue which falls into furnace bottom in modern large thermal power plants and constitutes about 20% of total ash content of the coal fed in the boilers. Direct use of this material with a large quantity, will provide a solution to dispose of this material, and the possibility as alternative materials in construction. The main objective of this research is to study the behavior of concrete mix which comprises of partial replacement of fine aggregates with bottom ash against plain concrete. The study was carried out using coal bottom ash as a partial replacement with fine aggregates in the concrete mix by 20%, 30%, 40%, and 50% by weight. The various strength properties studied consist of compressive strength, flexural strength and splitting tensile strength. The results shows that the compressive strength, split tensile strength and flexural strength decreased as the percentage of replacement of bottom ash increased as compared to plain concrete. It was observed that up to 20% replacement the results of compressive test, flexural test and split tensile test are approximately same as that of the controlled concrete.
Key Words: Coal bottom ash, Compressive test, Flexural test, Split tensile test.
2. AN INTEGRATED DESIGN APPROACH OF HIGH-PERFORMANCE GREEN BUILDINGS
Rohit V. Vaddadi, Kamal Patwa, and Malvika Sharan
Abstract: The Large carbon footprint of conventional buildings coupled with their high energy consumption in recent years, there is a necessity for an emphasis on the design process of energy efficient high performance green buildings. However, there exists limited research on the integration of green technologies into a high performance green building with a special focus on energy, day lighting and green material. To solve this issue, an integrated design approach is presented from the perspective of making it practical and easier for architects and designers to design a high performance green building. This paper introduces the benefit of application of Environmental Impact Assessment and the integration of various green technologies along with LEED rating system in the design process. Relevant case studies of various green buildings are exemplified and enumerated throughout the paper for the purpose of investigating the practicality of the approach. Lastly, the payback period for the initial cost premium for the construction of a high-performance green building is also given due consideration in the design process.
Keywords: High- Performance green buildings; Green technologies; Integrated design; Design process; Environmental impact assessment; LEED; Payback period.
3. ANALYSIS OF PEDESTRIAN LEVEL OF SERVICE FOR CROSSWALK AT INTERSECTIONS FOR URBAN CONDITION
Archana.G and Reshma.E.K
Abstract: It is necessary to objectively quantify how well roadways accommodate pedestrian travel. Estimation of pedestrian level of service (LOS) is the most common approach to assess quality of operations of pedestrian facilities. Intersections, by their very nature, are locations where there is considerable potential for conflict between different traffic streams and different users. At busy intersections motorists, cyclists, and pedestrians often have to deal with complex situations and be aware of the position, movement and intent of other users. Mixed traffic of motor vehicles and pedestrians are common in urban intersections. The demand for the improvement of pedestrian facilities is raised due to the reasons such as difficulties in crossing heavily trafficked intersections, turning vehicles across their paths during the green signal, conflicts among pedestrians and cyclists, physical barriers, low visibility, improper design of handicapped accessible ramps and so on. A method is needed to assess the degree of difficulty a user will experience crossing an intersection. A field survey will be conducted to collect geometric, operational and traffic characteristics of crosswalks. A number of primary independent variables influencing pedestrian LOS should be identified and tested in the stepwise regression analysis Development of pedestrian LOS measure for intersection are intended to indicate the level of difficulty in crossing intersections. This study explains a method for the estimation of pedestrian LOS at intersections and also identifies the factors affecting pedestrian level-of service LOS at intersections.
Key Words: pedestrian facilities, heavily trafficked intersections
4. PERFORMANCE ANALYSIS OF SOLAR DRYING SYSTEM FOR MARINE PRODUCT OF OMAN
Zayana Nasser Ahmed Al Rawahi, Achuthan Munusami and Dinesh Keloth Kaithari
Abstract: In Many countries use of solar drying system is the order in food processing to save vegetables, fruits, coffee, tea, meat, fish and other crops. Solar heating system or solar drying system to dry foods and other product can make the quality of the product to be much better. The process of drying is removal of moisture mostly to protect the product for long time. The availability of good source information is lacking in some countries where solar drying system for food is needed. This project presents the design and fabrication of suitable solar drying system for different fishes which needs drying for preservation. Also there will be analysis on different fishes in Oman. Black body radiation principle is used in this project for receive the heat from the sun. Solar drying system is requires two main things, heat and air flow. The design of this drying system taken care of the both heat and air velocity. The sun light is observed through the glass plate to the black color coated metal plate. The basic frame of the design is made up from of an insulating material (wood) of size 143cm x 53.5cm x 11.5cm, absorber plate sheet painted black of size 90cm x 50cm and a cover glass (6mm thickness) sizing 146cm x 53cm. Cool air enter from air inlet heat from chamber then worm the air cause and raise exit throw hot air exit. Ideally, the results gave as temperature between 45 C° and 60 C° in the chamber. The fish content of different weight depending on the type of the fish reducing about25% of moisture in three days of 10hours each day of drying. Works studied are catalogued with summaries.
Key Words: Solar drying, Fish drier, Drying chamber.
5. GOOGLE MAPS AND RSS INTEGRATION IN ANDROID
Sabyasachi Patra1, Karishma Velisetty2 and Prathamesh Patel3
Abstract: This paper describes the process of integrating Google Maps API V2 as well as RSS feeds into an Android project. Authors have made an application. The basic purpose of this application is to use it as an introductory application to get our hands dirty on native Java coding and embark upon our research domains; un-burdened and with a smoother paradigm of thoughts. It is also useful for any Android developer to get a command on the basic algorithms which deal with Google Maps and other very important client - based and efficiency - enabling offline applications. Basically, it’s the textual modelling of our first Android based basic – level application.
Keywords - Android, RSS, Google Maps, API Key, TOI, Map Fragments, Android SDK, SAX Parser
6. IMPROVING DEVELOPMENT TIMES BY REUSING FLEXIBLE HARDWARE AND SOFTWARE COMPONENT
Bhaumik Paresh Mistry
Abstract: Product development time estimation is important for project management tasks. This study investigates the impact of requirements reuse on product development duration for different products in a similar domain. We propose an analytical tool to estimate the minimum time to be saved given the percentage of requirements reused from earlier projects. This paper presents basis for the formal reuse of hardware components as a strategy to reduce the task for verifying new hardware elements. Assuming the existence of a library of formally verified hardware components, we propose to make effective reuse of these existing elements when creating new ones. The concept of software component reuse is simple: the idea of building and using "software preferred parts." By building systems out of carefully designed, pre-tested components, one will save the cost of designing, writing and testing new code. The practice of reuse has not proven to be this simple however, and there are many misconceptions about how to implement and gain benefit from software reuse. One case from organization has been studied for software and system development projects, which consist of hardware and software components. The results of the case studies are compared with a study in the literature on product development time.
Keywords: Hardware reuse, Software reuse, Griffin formula, Time development, Recycle.
7. RADIX SORT WITH REDUCED TIME COMPLEXITY
Saumya Lahera and Nirav Shah
Abstract: Sorting is a technique that arranges data in a specific order, so that they can be accessed easily. Radix sort is one of the techniques. Processors execute programs as per the definition of codes. Time of execution depends on the design of the program. Complex programs take more time of execution. This technical paper explains radix sort algorithm that has been made simpler to reduce time complexity.
Keywords: Reduced Time Complexity, Optimization, Main Logic, Input Phase, Radix logic
8. A REPORT ON QUANTUM COMPUTING
Achintya A. Paradkar and Vipul V. Joshi
Abstract: Today's computers work on bits that exist as either 0 or 1. Quantum computers aren't limited to two states; they encode information as quantum bits, or qubits, which can exist in superposition. Qubits represent atoms, ions, photons or electrons and their respective control devices that are working together to act as computer memory and a processor. Because a quantum computer can contain these multiple states simultaneously, it has the potential to be millions of times more powerful than today's most powerful supercomputers. A processor that can use registers of qubits will be able to perform calculations using all the possible values of the input registers simultaneously. This superposition causes a phenomenon called quantum parallelism, and is the motivating force behind the research being carried out in quantum computing. Due to technical obstacles, till date, a quantum computer has not yet been realized. But the concepts and ideas of quantum computing has been demonstrated using various methods like NMR, Ion Trap, Quantum Dot, Optical Methods, etc. A quantum computer manipulates qubits by executing a series of quantum gates, each a unitary transformation acting on a single qubit or pair of qubits. In applying these gates in succession, a quantum computer can perform a complicated unitary transformation to a set of qubits in some initial state. The qubits can then be measured, with this measurement serving as the final computational result. Research must devise a way to maintain decoherence and other potential sources of error at an acceptable level. Probably the most important idea in this field is the application of error correction in phase coherence as a means to extract information and reduce error in a quantum system without actually measuring that system. Thereby, quantum computers will emerge as the superior computational devices and perhaps one day make today's modern computer obsolete.
Keywords – Qubits, superposition, parallelism, coherence, entanglement, quantum gates, decoherence, NMR, quantum dots.