No. |
Title and Author |
Area |
Country |
Page |
451 |
Design and Implementation of High Speed Carry Select Adder using GDI Technique for Low Power Applications
-Soniya Swarnkar ; Vijendra K Maurya; Ashiq Hussain; Ronak Shrimal
Addition is a fundamental arithmetic operation usually worn in VLSI systems. The increasing demands for high speed and high resolution mixed signal integrated circuits dictate the use of Gate Diffusion Input (GDI) technique in contrast to traditional CMOS logic style. Simultaneous fulfillment of demands causes the need for the adders that has high speed and low power consumption. Solution comes to an end by the design of GDI adders. GDI is a logic style that appears to be promising in reducing power consumption, increasing speed and providing an analog and digital friendly environment. GDI technique is a novel technique which is extension of GDI (gate diffusion input) technique for low power digital circuits design further to reduce the swing degradation problem. This paper presents logic style comparisons based on different logic functions and claimed Gate Diffusion Input logic (GDI) to be much more power-efficient than complementary CMOS logic design. This technique can be used to reduce the power consumption compared to existing SQRT BK CSA using BEC, This techniques allows reduction in power consumption, carry propagation delay and transistor count of the carry select adder. Thus, the implementations of different GDI adders have been suggested in this thesis. The work shows that proposed Carry Select Adder using GDI technique has less area and consumes less power. Also it provides reduced delay comparatively and therefore can be used in various processors in order to perform fast arithmetic operations. Read More...
|
VLSI |
India |
1901-1903 |
452 |
Seismic Analysis of Multi-Storeyed Building with Bottom Rigid Storey and Intermediate Service Soft Storey Having Moment Transfer Beams
-Ravishankar V Lawate ; Prof. Vishwanath. B. Patil
Multi-storeyed buildings with open (soft) ground floor are inherently vulnerable to collapse due to earthquake load, even then their construction is still widespread in the developing nations. An investigation has been performed to study the behavior of the columns at ground level of multi-storeyed buildings with soft ground floor as satellite bus stop and shear walls subjected to earthquake loading. The structural action of masonry infill panels of upper floors has also been taken into account by modeling them as diagonal struts. Shear wall is one of the most commonly used lateral load resisting in high rise building. In this study building is modeled with different shapes of shear wall with top and bottom soft storey. Static and dynamic analysis is carried out by using ETABS 2015. The comparison of these models for different parameters like Storey shear and storey displacement is carried out. Read More...
|
M.Tech in Structural Engineering |
India |
1904-1907 |
453 |
Design of an Efficient Photovoltaic System using MPPT and P&O Algorithm
-Rajeev Kumar ; Minali Gupta
Among all renewable energy sources solar energy is the most acceptable solution as it is available in abundant and free of cost worldwide. A typical solar generation system consists of a solar array and a DC-DC converter. DC-DC converters are applied between the source and the load as power conditioning unit to regulate and boost up photovoltaic voltage to desired output voltage. This paper presents a low capacity photovoltaic system suitable for residential purpose. The hard switching method has a large overlapping area between voltage and current of the switch. This area causes switching losses because the power is a product of voltage and current. Switching losses are proportional to the switching frequency. Thus, it is unable to increase the switching frequency. On the other hand, the soft switching method including ZVS and ZCS minimizes the overlapping area. This paper presents maximum power point tracking (MPPT) simulation for a photovoltaic (PV) system. The MPPT is used to find and maintain operation at the maximum power point. Algorithm used is perturb and observe (PO). Read More...
|
Electronics Design and Technology |
India |
1908-1910 |
454 |
Handwritten Character Recognition and Text Formation for Digital Notepad
-Sangharsha Mahadeo Meshram ; Amit Fulsunge
An handwritten alphabetical character recognition system using multilayer feed forward neural network is described in the paper. A new method, called, diagonal based feature extraction is introduced for extracting the features of the handwritten alphabets. Fifty data sets, each containing 26 alphabets written by various people, are used for training the neural network and 570 different handwritten alphabetical characters are used for testing. The proposed recognition system performs quite well yielding higher levels of recognition accuracy compared to the systems employing the conventional horizontal and vertical methods of feature extraction. This system will be suitable for converting handwritten documents into structural text form and recognizing handwritten names. Read More...
|
Electronics & Communication Engineering |
India |
1911-1913 |
455 |
Effect of Water to Geopolymer Binder Ratio and Curing Methods on Fly Ash Based Concrete
-Sachin J. Khaparee ; Prof. A. D. Hamigi; Prof. Rahul Jadhav; Mr. Bhanudas Abhale
The experiments were conducted on fly ash based geopolymer concrete by varying water to geopolymer binder ratio 0.25, 0.30, 0.35, 0.40. Total four mixes were prepared with alkaline activators (NaOH solution concentration of 13M and Na2SiO3 solution) for natural curing and artificial curing. Flexural strength test is conducted on each of the four mixes. The results of investigation indicate that there is increase in strength with increase in temperature. Also it was seen that water to cementitious material ratio of 0.30 the results were promising. Hence geopolymer concrete has a greater potential for utilization in construction industry as it is environmental friendly and also facilitate the use of fly ash, which is a waste product from thermal power plant. Read More...
|
Civil Engineering |
India |
1914-1915 |
456 |
Experimental Study of Load Settlement Behavior on Silt Clay Loam (Soft Murum) with or without Geogrid
-Shripad S. Somvanshi ; Prof. Dr. V. J. Sharma; Mr. Bhanudas Abhale
Soil is all naturally occurring relatively unconsolidated earth material, organic or inorganic in character that lies above the bed rock includes different materials like silts, clays, gravels etc. It is universally available material of various types with different physical, chemical and organic properties. Foundation is a part of structure which transmits load of super structure to the sub soil. Geotechnical engineers face various problems while designing the foundations on highly compressible clayey soil due to poor bearing capacity and excessive settlement. Thus bearing capacity is one of the important aspects of soil engineering. The bearing capacity of the soil put forth by scientists like Prandtl (1921) Terzaghi (1943), Meyerhoff (1963), Hansen (1970), Vesic (1973), etc. In the project the bearing capacity of silt clay loam can be studied under static load in metallic tank. The prototype structure of working foundation is prepared and tested under cyclic load of various vertical load and eccentricities of a size of square and circular footing. The effect on bearing capacity of soil due to inclusion of reinforcement into the soil at various positions is also to be analyzed. Read More...
|
Civil Engineering |
India |
1916-1919 |
457 |
Damage Detection of Structure using Vibration Characteristics
-Halesh S ; Dr. Bhavana Patel S S
Structural Health Monitoring (SHM) and Damage Assessment (DA) based on measured data is one of the most important issues related to safety and reliability of engineering structure especially in the areas such as Civil, Mechanical and Aerospace engineering. Effective methods and tools developed for SHM and DA can help not only to prevent catastrophic failure but also to prolong the service life of the structure. However, the primary objective for SHM is to detect the state of the structure, either healthy or damaged, by comparing the vibration characteristics of healthy and damage structure. Damage changes the vibration characteristics such as natural frequency, frequency response and mode shapes. In this paper steel beam is modeled and analyzed for vibration characteristics using Finite Element Analysis (FEA) tool. The changes in the natural frequencies, mode shape and other associated vibration characteristic may be considered for interpreting an unhealthy structure with reference to a healthy one. The damages in the structure may be introduced as cut-outs, stiffness reduction. The outcome of this study is to detect and localize the damage in the structure using the vibration characteristics. The procedure is analyzed numerically and validated by introducing known location(s) of damage in the structure. Read More...
|
Structural Engineering |
India |
1920-1926 |
458 |
Use of Sediments from Dam Reservoir in Construction Industry
-Mayur D. Chavan ; Prof Atul P. Khatri
Sediments formed by erosion processing the catchment area of stream flow downstream along with the river. When water from the river is in stagenant condition behind the dam, the suspended particles from the water settles along the bed of reservoir. Depending on the topography of the reservoir, intensity of rainfall, type of soil and other conditions the percentage of sedimentation varies. The dam losing its water storing capacity as sediments from dam reservoir starts accumulating and thus the dam fails to serve the purpose for which it was built. Thus periodic removal of dam sediments is necessary to serve the purpose for which dams are built, namely for storage of water. Dredging involves removal of accumulated sediments from bottom of dam reservoir. The aim of this study was to determine the use of the dredged sediments from Tilari Dam reservoir in construction industry. This dam is situated in Dodamarg Taluka, in Maharashtra and is the largest one in Dodamarg Taluka of Kolhapur and has lost its water storing capacity by 11% due to sediment accumulation. To determine the optimum manufacturing procedure to obtain the best product a detailed experimental work was carried out. The main focus of this study was manufacturing bricks from dam sediment and to study the effect of firing temperature and two additives, namely stone dust and bottom ash on the mechanical and physical properties of bricks. A preliminary Environmental Impact Assessment (EIA) was also included in this study highlighting both positive and negative, as well as short term and long term impacts of removal of sediment from Tilari dam reservoir. Read More...
|
M.E. Civil (Construction & Management) |
India |
1927-1932 |
459 |
Performance Analysis: Stemming Algorithm for the English Language
-Vairaprakash Gurusamy ; Dr. S. Kannan; K. Nandhini
Information retrieval is a process of retrieving the documents to satisfy the user's need for information. The user's information need is represented by a query, the retrieval decision is made by comparing the terms of the query with the terms in the document itself or by estimating the degree of relevance that the document has to the query. Words in a document may have many morphological variants. These morphological variants of words have similar semantic interpretations and can be considered as equivalent for the purpose of IR applications. For this reason, a number of so-called Stemming Algorithms, which reduces the word to its stem or root form have been developed. Thus, the key terms of a query or document are represented by stems rather than by the original words. Stemming reduces the size of the index files and also improves the retrieval effectiveness. A stemming algorithm is a computational procedure which reduces all words with the same root (or, if prefixes are left untouched, the same stem) to a common form, usually by stripping each word of its derivational and inflectional suffixes. This study evaluated the performance analysis of the basic three suffix removal stemming algorithms in the English language called Lovins, Porter and Paice/Husk by Accuracy and strength of the algorithm. Read More...
|
Computer Applications |
India |
1933-1938 |
460 |
Accident Identification and Alert System
-Kranti Harpale
Security is the major concern in day to day life. People often loose their life because of poor security. The accidents which occur cannot be minimized but the effect of the accident can be minimized. This system is based on detection and alert of accident using GSM and GPS module. The GSM acts as an output and the GPS acts as an input to the microcontroller. So to provide security to the vehicle we use this system which can be fitted into the vehicle. It uses an accelerometer sensor to detect an accident. An accelerometer monitors the acceleration of the vehicle. It will detect the dynamic acceleration resulting from shock, motion or vibration. If the deceleration is greater than the threshold value it will send the data to the microcontroller. Then the microcontroller will compare the received data with the threshold value and after comparison it will send the message to the given number via GSM. The controller will also send the location which is detected by the GPS module. So this detected location is sent to the authorized user when an accident have occurred, so that the person can be able to help the people who have met with an accident. So this system will help the identification and rescue of vehicles that have met with an accident. Read More...
|
Electronics and Telecommunication Department |
India |
1939-1941 |
461 |
Effective Governing of Circulating Current in Modular Multilevel Converter using SVPWM
-Jitendra Sahu ; Vasundhara Shukla
The Modular Multilevel Converter is another arrangement in the field of medium and high power electronics. The working operation of converter is depending on modular approach. The circulating current which affects both the arms are compensated by the half and full bridges integrated as a proposed approach in this work which comprises of modules, every one being a half-bridge associated in parallel to a capacitor. The fundamental characteristics behind this idea are that it is conceivable to construct the sinusoidal waveform of the voltage by including a few modules in arrangement in each phase leg of the converter. An arm inductance is associated in arrangement with the modules of each arm. As opposed to the two level voltage source converter, where the yield phase voltage can be either give or take the half of the dc-interface voltage, the MMC with SVPWM can change its yield with steps equivalent to every module capacitor's voltage level. Read More...
|
Electrical Engineering |
India |
1942-1946 |
462 |
Flood Monitoring and Alerting System
-Kattamreddy.Vijaya
One of the major disasters occurring in the world is flooding. To monitor the water conditions such as water level and velocity of flow, wireless sensor network system architecture for real time monitoring has been developed. The main aim of the proposed work is to send real time information of flooding to the concerned welfare authorities so that suitable action could be taken. This system architecture is composed of sensor network, processing/ transmission unit and a server. Sensors are distributed in rivers so that changes of the water level can be effectively monitored. In this paper monitoring the water related data like water level and flow rate in rivers and flood conditions is done using arduino UNO processor will process the data and GPRS/GSM SIM 900a module is used to transmit measured data to the LCD display and if the values measured are different from the normal values alerts are generated and sent as an SMS through the GSM modem. This wireless sensor network system could remotely monitor the real time data of water condition in the identified areas. Read More...
|
Communication Systems |
India |
1947-1949 |
463 |
Design of Pervious Concrete & Enhancement of Its Strength With Different Water-Cement Ratio & Admixtures
-Rukman Patel ; Rukman Patel; Nancy Soni
The Strength of pervious concrete is as important as its permeability characteristics. Studies indicate that pervious concrete has lower compressive strength capabilities than conventional concrete and will only support light traffic loadings. This thesis investigated prior studies on the compressive strength of pervious concrete as it relates to water- cement ratio, aggregate-cement ratio, aggregate size, quantity of admixture and compaction and compares those results with results obtained in laboratory experiments conducted on samples of pervious concrete cube casted for this purpose. Since voids are supposed to reduce the strength of concrete 1% for every 5% voids (Klieger, 2003), the goal is to find a balance between water, aggregate, and cement in order to increase strength and permeability, two characteristics which tend to counteract one another. The end result of this research will be a recommendation as to the water-cement ratio, the aggregate-cement ratio, aggregate size, quantity of admixture and compaction necessary to maximize compressive strength without having detrimental effects on the permeability of the pervious concrete system. This research confirms that pervious concrete does in fact provide a lower compressive strength than that of conventional concrete. Researches indicate that the minimum compressive strengths of acceptable mixtures reached in to 2.8Mpa and maximum compressive strength reached to 28Mpa (Tennis et al, 2004, Yang, J. and G. Jiang, Nguyen, 2002, V.C., 2008). Extremely high permeability rates were achieved in most all mixtures regardless of the compressive strength. Read More...
|
Civil Engineering |
India |
1950-1957 |
464 |
Smart Healthcare Based on IoT
-Mankiran Kaur ; Geetkiran Kaur; Rajanpreet Kaur
Technology plays a major role in healthcare not only in sensory devices but also in communication, recording and display device. In this project the application of IoT in the field of healthcare is explained .There are many uses of IoT in this field such as medical fridges, RFID technology for healthcare. However, the diversity of the objects in IoT causes the heterogeneity problem of the data format in IoT platform. Meanwhile, the use of IoT technology in applications has spurred the increase of real-time data, which makes the information storage and accessing more difficult and challenging. In this paper applications of IoT based on healthcare is shown. Read More...
|
Computer Science and Engineering |
India |
1958-1959 |
465 |
Design & Fabrication of Eco Friendly Cooling System
-Apratim Mukherjee ; Dr. N. K. Swamy
Magnetic refrigeration which is a method of refrigeration based on the magneto caloric effect and hence it is an efficient method in today’s world, which actually can bring fluctuations in energy saving factors. This problem with using pure gadolinium as the refrigerant material is that it does not exhibit a strong magneto caloric effect at room temperature. More recently, however, it has been discovered that arc-melted alloys of gadolinium, silicon, and germanium are more efficient at room temperature. Using the magneto caloric effect for refrigeration purposes was first investigated in the mid-1920’s but is just now nearing a point where it could be useful on a commercial scale.1 The main difference associated with this process is that it is void of a compressor. The compressor is the most inefficient and expensive part of the conventional gas compression system. In place of the compressor are small beds containing the magneto caloric material, a small pump to circulate the heat transfer fluid, and a drive shaft to move the beds in and out of the magnetic field. Read More...
|
Mechanical Engineering |
India |
1960-1964 |
466 |
Nanotechnology in Terrain of Water Regimen
-Apratim Mukherjee
In this modern era where we are residing the need is also increasing with the increment in the technology and facility. In this way nanotechnology is one of the most important technology through which we can get rid of most of the vitals problem which commonly people like farmers, tribal peoples are facing through. So this paper is focusing on the application of nanotechnology in water treatment which is the one basic thing without which we could not reside. According to the survey it is mentioned that we people by 2020 could not get the pure water and now a day’s also 60% of the people is taking in impure water as a basic component. There are conventional technologies which are affordable and can be produced locally for effective removal of contaminants from water and wastewater. However, there are several challenges with regards to the cost and the removal efficiency of certain pollutants, most especially, the persistent organic pollutants and endocrine disruptors by these conventional technology. Environmental nanotechnology viz. nanotechnology and/or nanotechnology combined with conventional technologies are able to treat organic and inorganic contaminants to acceptable levels. There is currently intense scientific interest in nanotechnology for water and wastewater treatment; nevertheless, there are concerns about the toxicity and environmental impact of nanoparticle. So in the following paper we will be describing the methods of hospitalizing the water and the ways taking different samples. So here we will target some area and we will decipher that how the implementation of nanotechnology will enhance the life span as well as lot of parameters which is directly hike the components of human surroundings. Read More...
|
Mechanical Engineering |
India |
1965-1967 |
467 |
Near Field Communication (NFC) Technology using Android Phone for Cashless Transaction
-Vishwajeet Rajendra Nikam ; Prof. N C Patil
Near Field Communication (NFC) is a technology for contactless short-range communication. Based on the Radio Frequency Identification (RFID), it uses magnetic field induction to enable communication between electronic devices. The number of short-range applications for NFC technology is growing continuously, appearing in all areas of life. Especially the use in conjunction with mobile phones offers great opportunities. One of the main goals of NFC technology has been to make the benefits of short-range contactless communications available to consumers globally. The existing radio frequency (RF) technology base has so far been driven by various business needs, such as logistics and item tracking. While the technology behind NFC is found in existing applications, there has been a shift in focus most notably, in how the technology is used and what it offers to consumers. Read More...
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Electronics and Telecommunication Department |
India |
1968-1971 |
468 |
Laboratory and Field Performance of Stabilized Soft Subgrade with Granular Material and Polymer
-Azhar Alam ; Kaushik Majumdar
Usually the service life of pavement on weaker sandy subgrade is affected due to their low density and compressibility behaviour. These sandy soil possess low strength, CBR value. Hence seasonal changes affect properties of these sandy soil adversely. Stabilization techniques using granular material and polymer is listed in literature for improving properties of these types of soft subgrades. This paper discusses the performance of stabilized soft sandy soil for suitability as subgrade using Moorum as granular material and polymer. Dynamic cone penetration test and CBR tests are carried out in laboratory on composite sandy soil with varying polymer content and the results are presented. There is considerable reduction in optimum moisture content by adding polymer. Considerable improvement in both index & engineering properties.in soaked CBR, Maximum dry density and optimum moisture content with granular material and polymer is observed. In this paper an attempt was made to assess the effectiveness of sandy soil blended with granular material and polymer for sand stabilization by studying the subgrade characteristics. Read More...
|
Civil Engineering |
India |
1972-1975 |
469 |
A Review: Effect of Geo Grid Reinforcement on Pavement Sub Grade
-Shikha Tiwari ; Dr. Monika Vyas
A pavement structure consists of many layers for the first purpose of transmitting and distributing traffic loads to the sub grade. Rutting is one style of pavement distresses which will influence the performance of road pavements. Research has been accomplished on the utilization of combination stuffed cells to enhance the cutting off resistance of base courses. Studies on the effectiveness of geo grid sort reinforcement to reduce vertical deformation of pavement structures over sub grades of varied strengths are pursued in laboratories. The effect of geo grids and steel mesh to improve the performance pavement is experimentally investigated and evaluated. The California bearing proportion (CBR VALUE) of these sub-level have low, it needs to more thickness of asphalt. Read More...
|
Civil Engineering |
India |
1976-1978 |
470 |
CFD Simulation of Submarine Escape Suit
-Sushma Gampa ; V. F. Saji; H. N. Das; Yousuf Ali
In case of an unfortunate event of accident of a submarine, it is required to provide some pressurized suit, which will be used by submariners to escape from the sunken submarine. Before releasing from a depth of 180m, the suit is inflated and its internal pressure is adjusted to match the external hydrostatic pressure at that depth .After release, submariner wearing the suit starts ascending up due to positive buoyancy. The speed of ascend is required to be maintained at around 3m/s to suit human physiology. After reaching a depth of 100m (from surface), the speed is required to be limited to 1m/s. Suit is for individual escape .As these devices are critical to save the lives of users, a lot of prudence has to be exercised in designing the equipment. The objective of this project is to estimate added mass and drag coefficient of suit which may be used to simulate the trajectory of the escape suit. The two parameters chosen to be determined here have considerable importance on the motion of submariner. Whenever acceleration is imposed on the fluid flow either by acceleration of submariner or accelerating externally, additional fluid force will act on the body surface in contact with fluid. These inertial forces are characterized as added mass. The work includes meshing of the flow domain, flow solution and post processing of results. The software used are ANSYS ICEM CFD, ANSYS FLUENT and MATLAB. Read More...
|
M.Tech in Machine Design |
India |
1979-1982 |
471 |
Rainfall Prediction using Statistical Modelling: A Survey
-Priti Pandey ; Pankaj Richhariya
Prediction of rainfall is a perplexing task. A little vacillation in the regular precipitation can impact sly affect horticulture area. Precise precipitation forecast has a potential advantage of forestalling causalities and harms caused by catastrophic events. India, the achievement or disappointment of the products and water shortage in any year is constantly seen with most prominent concern. Under certain conditions, for example, surge and dry spell, exceedingly exact precipitation expectation is valuable for horticulture administration and debacle anticipation. Numerous techniques are used for prediction of rainfall such as data mining technique, machine learning technique etc. In this paper we have discussed different prediction models and bottle neck of existing prediction models. Read More...
|
Computer Science and Engineering |
India |
1983-1986 |
472 |
An Overview on Development of Flying Snake-Like Robot for Its Motion Adaptability
-Shruti Kumar ; Nathi Ram Chauhan
In field of Robotics, number of research on Snake-like Robots for their motion adaptability has been done. It’s a revolutionary era in which the robots are not specifically designed to mimic the convectional type motions related to automobiles, instead represents the motion of animals and creatures in our environment. In this paper an overview of advantages of 3D-snake-like robot over conventional mobile robots in our environment for movement in most difficult and undulating terrains such as dessert, water, cave and tree etc. has been discussed which can adapt to many configurations. The studied and designs for various types of locomotion on ground or in air has been discussed. Most importantly, the experiments performed on Chrysopelea Paradisi (Flying Snake) have been discussed for its computational analysis. In this, various experimental results extracted from different Research is presented. The validation is provided for the mobility of this robot through various publications. Read More...
|
Robotics |
India |
1987-1991 |
473 |
Surface Modification of Piston Ring for Improvement of Wear Resistance using Liquid Nitriding
-M. Prasanth ; K. M. Kishore Kumar; A. Jaison Suresh; S. Niayz Ahamed; B. Ronald Ajith Praveen
The research is to optimize metallurgical properties and to improve the manufacturing route of the piston ring. Salt bath nitriding or liquid nitriding process was used in this work for surface treatment of gasoline engine piston ring. Piston ring in an engine makes an important contribution to high volumetric efficiency by properly sealing the cylinder bore and piston. The main function of piston ring is to seal between the combustion chamber and the crankcase of the engine. Selective nitriding of thin wall gasoline piston ring is very important because the surface side are deleterious to the engine performance. Nitriding provide that selective nitriding is possible using a simple mounting system, leading to homogeneous properties on both inner and outer diameter surface. Only a diffusion zone without grain boundaries nitrides, composes of nitride microstructure. Read More...
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Mechanical Engineering |
India |
1992-1993 |
474 |
IoT Based Industrial Automation
-Amruta Bauskar ; Prof Ashish Maske
The Internet of Things (IoT) [1] is a system which connect many devices by using Internet. The IOT is concept in which the different operational devices are connected with each other. The device has unique identifier address which is provided by IP protocol. Mechanical and digital machines, objects, animals or people that have unique identifier address are connected with each other by using IoT. The device can transfer data to other device with help of IoT. IoT[10][4] or internet of thing is a technology that connect any physical device with other physical device by using Internet. Industrial Automation system using IoT is a system that uses computers or smart device to control basic functions i.e. turn ON devices or OFF device. The industry automation system that allows user to control industry appliances, machines by using internet and web server. The system uses a microcontroller for processing all user commands. The ESP8266 [7] modem is used to connect the system with the user by using web page. The user gives the command that received by ESP8266 modem. The ESP8266 receive the command and send to the Atmega microcontroller. The microcontroller then operate the loads as per user command. LCD shows device state on a display. The graphical user interface is designed to operate the industry devices using image icons. Read More...
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Electronics & Communication Engineering |
India |
1994-1996 |
475 |
A Study on Progressive Collapse Response of Cable Stayed Bridges using Elastomeric Bearing
-Fulzele Ashish Banduji ; Prof. Dr. M. R. Wakchaure; Prof. K .K . Tolani
In recent studies it has been found that the stays in cable stayed bridges are prone to lose their support at the initial stage due to egregious loads such as earthquake loads, thunder strikes, vehicle impact load and wind loads sudden cable losses are generated in the bridge resulting in an incalculable stress reapportionment on the deck towers as well as the span of the bridge. Design of Cable Bridge is essential considering such a sudden loss. these losses being associated geometrical and material discreteness, the synopsis of egregious loading is analyzed by using linear elastic models in design of cable stayed bridges This paper shows, a nonlinear 3D finite element model of an idealized steel cable-stayed bridge are developed and analyzed with use of elastomeric bearing to determine what is behavior of progressive collapse in bridge with use of elastomeric bearing. The deflection which is equal in both the spans of the bridge converts into major deflection in one span after loss of cable in other span. The use of elastomeric bearing in cable stayed bridges must affect the progressive collapse scenario. The percentage reduction in vibrations of triggered event due to introduction of elastomeric bearing is studied. Read More...
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Structural Engineering |
India |
1997-2000 |
476 |
Intrusion Detection and Prevention Systems in MANET
-Shilpa Verma ; Ritika Mehra
What are ADHOC networks? MANET means Mobile Ad hoc Network - the Collection of mobile nodes that dynamically form a temporary network for communication within the nodes. This network has the capability to configure itself every time when a mobile node changes its location. This type of network has attractive features such as its low transmission power to conserve energy, increase throughput, and reduce delay. However, it suffers from many constraints, including limited resources, and the use of insecure wireless communication channels. Hence any type of intruders can attack the communication at any time, especially the routing mechanism between the nodes. Unattended installation of sensor nodes in the environment causes many security threats in the Ad-hoc networks. The security of the DSR and AODV protocol is vulnerable to different types of attacks. The base research by Dubey et.al [3] developed an intrusion detection and prevention system on AODV protocol. This research had a major drawback that it allowed a packet loss of minimum 5 to 6% which is quite high and also the methodology increased the energy consumption in network thereby reducing the lifetime. Read More...
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M.Tech Computer Science |
India |
2001-2003 |