International Journal of Students' Research in Technology & Management, Vol 3 (5) May 2015
Special Issue for SLRTEC, Thane Event NOVA 2015
1. 3D-BIOPRINTING (Application of 3D printer for Organ Fabrication)
Abstract: Chronic shortage of human organs for transplantation has become more problematic in spite of major development in transplant technologies. In 2009, only 27,996 (18%) of 154,324 patients received organs and 8,863 (25 per day) died while on the waiting list. As of early 2014, approximately 120,000 people in the U.S. were awaiting an organ transplant. The solution to this problem is 3D bio-printing. This technology may provide a unique and new opportunity where we can print 3D organs. It incorporates two technologies, tissue engineering and 3D printing. 3D bioprinting involves dispensing cells onto a biocompatible scaffold using a successive layer-by-layer approach to generate tissue-like three-dimensional structures. It uses instruction in the CAD file for formation of the object, high level computer programming and ability to build highly advanced computer systems, it offers hope for bridging the gap between organ shortage and transplantation needs.
Keywords: Introduction, 3D Bioprinting and its Working, Organ Fabrication, Advantages, Disadvantages, Future Scenario, Conclusion.
2. ANALYSIS OF DATA HIDING ALGORITHMS FOR IMAGE SECURITY
Swati B. Singh, Ameya K. Naik, Pragati Dwivedi, Swapna Patil
Abstract: The main goal of reversible data hiding algorithms is to embed the secret information in cover image and recover it back successfully. So we have implemented two methods. In first method, cover image is encrypted using stream cipher and pseudo randomly generated key and compressed using haar wavelet compression. The encrypted compressed image acts as a media for hiding secret image. And in second method, secret image is encrypted using randomly generated key and it is hidden in cover image. In both the method data hiding is done using LSB based image steganography. At the receiver, reverse process is done to extract secret image and recover cover image. At the end, we conclude that second method gives better security of image compared to method one.
Keywords: Image encryption, steganography and reversible data hiding.
3. AUTOMATED CONTROL SYSTEM FOR AIR POLLUTION DETECTION IN INDUSTRIES
Royden Sequeira, Renil Sebastian, Yogesh Bunde, Uday Suryawanshi
Abstract: In the terms of damage caused to the environment, air pollution can be easily characterized as the main culprit .The main sources of air pollution are industries. Therefore, this paper aims at using semi-conductor sensor for detecting the various pollutant gases at the emission outlets which detects the level of pollutants in the industries. Specifically in this paper, gas sensor MQ135 is used. When the pollution/emission level shoots beyond the permissible level, the process/machinery causing the polluted emission is immediately shut down and there will be an alarm (light alarm or buzzer) to indicate that the limit has been reached at a specific emission outlet. Simultaneously, the factory control room will be informed via GSM that the process/ machinery has been shut down and corrective action has to be taken. The execution and synchronization of the entire process is monitored and controlled by a microcontroller (PIC16F877A).
Keywords: Gas sensor MQI35, GSM, Microcontroller (PIC16F877A), Air Pollution.
4. DATA COMMUNICATION USING VISIBLE LIGHT
Smita Pawar, Tyran Kinny, Franklin Puthuva, Ashore Komban, Dipti Belekar
Abstract: Visible Light Communication (VLC) using a Light Fidelity system, as proposed by a German physicist—Harald Haas, provides transmission of data through illumination by sending data through an LED light source that varies in intensity that can be controlled and adjusted such that it appears as normal light to the naked human eye. Here the property of persistence of vision of the human eye is exploited for additional application of a free, sustainable and green source that can be used for wireless communication at very fast data rates. This paper focuses on developing a low cost Li-Fi based system and analyses its performance with respect to existing wireless technology. Wi-Fi is great for general wireless coverage within buildings, whereas Li-Fi is ideal for high density wireless data coverage in confined area and for relieving radio interference issues. Li-Fi based system provides better bandwidth, efficiency, availability and security than Wi-Fi and has already achieved higher data rates. By leveraging the low-cost nature of LEDs and lighting units there are many opportunities to exploit this medium, from public internet access through day-to-day light sources which have their primary purpose of only emitting light.
This project envisions a future where data for communication devices will be transmitted through the visible spectrum thus de-clogging the currently overused RF spectrum.
Keywords: VLC (Visible Light Communication), Li-Fi (Light Fidelity), Wi-Fi (Wireless Fidelity), LED (Light Emitting Diode), Wireless communication
5. MULTICHANNEL PULSE HEIGHT ANALYSER USING FPGA FOR DATA ACQUISITION
Fernandes Newton, Vishram Ghadigaonkar, Chanin D’souza
Abstract: This document gives the description of a multichannel pulse height analyser which is implemented using FPGA technology for high speed data acquisition and analysis. Multichannel analysers (MCA) are used globally in various laboratories in the application of nuclear spectroscopy. The most common use of a MCA is to plot the energy spectrum or to find the decay rate of the radio material under test. In the following context we have described the designing of an open source multichannel pulse height analyzer which uses a high speed ADC for data acquisition and displays the output on a graphical user interface designed using labVIEW in a computer.
Keywords: high speed ADC, FPGA, labVIEW.
6. HEART RATE MONITOR USING INFRARED
Divyesh Parmar, Rishi Mistry, Yash Kava
Abstract: The heart rate is one of the significant physiological parameters of the human cardiovascular system. Heart rate is the number of times the heart beats per minute. Heart rate data reflects various physiological states such as biological workload,stress at work and concentration on tasks, drowsiness and the active state of the autonomic nervous system. Human cardiac dynamics are driven by the complex nonlinear interactions of two competing forces: sympathetic regulation increases and parasympathetic regulation decreases the heart rate. Thus,monitoring of heart rate plays a significant role in providing the status of cardiovascular system and clinically correlated information to medical professionals. Heart rate measurement is also regarded as an essential parameter in patient care monitoring system. Heart rate can be measured either by the ECG waveform or by sensing the pulse - the rhythmic expansion and contraction of an artery as blood is forced through it by the regular contractions of the heart. The pulse can be felt from those areas where the artery is close to the skin. This paper highlights on the design of a microcontroller (PIC series) based heart rate counter that is able to capture the pulse from finger tip by sensing the change in blood volume. The heart rates of fifteen healthy normal subjects (students of age 21-22 yrs.) both in relaxed and excited states were measured using the designed device and a standard heart rate measuring device. The outputs of the measured device were satisfactory. Also, the designed device,being noninvasive one, can easily find its place in health care monitoring system.
Keywords: Introduction, Infrared Led, Microcontroller, Timer 556, Project Concept, Importance of HRM, Advantages,Conclusion.
7. POTENTIAL OF CARBON DIOXIDE ABSORPTION IN CONCRETE
Pranav Tagwale, Vibhas Bambroo, Rituja Bande, Prasad Rathod, Dr. S. T. Mali
Abstract: Abstract: Cement industry contributes to 5% of global CO2 emissions. To mitigate pollution, there is a need of CO2 sequestration into stable forms. Present research focusses on CO2 being channelized towards an important construction practice. This paper summarizes the potential of CO2 absorption in concrete. To verify CO2 absorption in concrete, an artificial CO2 environment for curing of concrete cubes using dry ice was created. Considering concrete of M20 grade, a comparative experimental study of water cured concrete cubes, CO2 cured concrete cubes, for penetration (using phenolphthalein indicator), and compressive strength was carried out. The result analysis of the tests indicated that CO2 cured concrete cubes showed 22.125% higher compressive strength than water cured concrete cubes and CO2 penetration of 13.5 mm after 2 hours. The rate of CO2 penetration and strength gain in concrete was found to be rapid in the early hours. It is shown that CO2 can prove to be a useful resource in the construction scenario, especially in the precast.
Keywords: Cement industry, pollution, CO2 sequestration, carbonation, CO2 curing, dry ice, penetration, compressive strength, precast industry
8. MULTIPLE DICTIONARY FOR SPARSE MODELING
Rachel Correia , Shonal D’mello, Primeya Dmonti, Jerina Figer
Abstract: Much of the progress made in image processing in the past decades can be attributed to better modeling of image content, and a wise deployment of these models in relevant applications. In this paper, we review the role of this recent model in image processing, its rationale, and models related to it. As it turns out, the field of image processing is one of the main beneficiaries from the recent progress made in the theory and practice of sparse and redundant representations. Sparse coding is a key principle that underlies wavelet representation of images. Sparse representation based classification has led to interesting image recognition results, while the dictionary used for sparse coding plays a key role in it. In general, the choice of a proper dictionary can be done using one of two ways: i) building asparsifying dictionary based on a mathematical model of the data, or ii) learning a dictionary to perform best on a training set.
9. PRINTED MONOPOLE ANTENNA TECHNOLOGY FOR WIDEBAND APPLICATIONS
Roopesh R. Patil, Bharti Singh
Abstract: Broadband planar monopole antennas have attracted their candidature for wideband applications like WLAN, WiMAX, RADAR, Satellite etc. Even though planar monopole antennas have several advantages in terms of cost, compactness, conformality, simplicity they suffer from a major disadvantage of having very narrow bandwidth. Various planar configurations such as circular, triangular, rectangular, hexagonal monopole have been presented. A review of various printed monopole antenna configuration including more recent technique like defected ground structure for bandwidth as well as gain enhancement is presented. Finally a symmetrical bevelling technique of radiating element for bandwidth enhancement of simple PRMA is also investigated for its performance using IE3D software. The software simulation result yields a significant bandwidth of 6.08 GHz ( from 2 GHz to 8.08 GHz) as compared to 5.13 GHz ( from 1.99GHz to & 7.12 GHz) for simple PRMA.
Keywords: Broadband, printed monopole antenna, slotted technique, bevelling technique, defected ground structure (DGS).
10. MTEG (Mylar and Turbine Electric Generator)
Nilay Chavan, Sunit Anchan, Saurabh Jadhav
Abstract: Mylar-Turbine Electric Generator (MTEG) that utilize solar energy to generate electricity. The resulting designs are cost efficient and can be used as an alternative for solar panel. The energy producing efficiency of MTEG is higher than conventional solar panel. The setup requires less area and is easily mobile. It consists of three main components Mylar parabolic reflector, steam turbine and electric generator. Mylar parabolic reflector is used to concentrate the solar rays on the water tank, the steam generated from this water is used to run the turbine which generates electricity. The idea behind this concept is to provide affordable electric generator to the people living in rural areas.MTEG is an eco-friendly idea and a leading innovation to the future.
Keywords: Mylar Parabolic Reflector, Boiler, Steam Turbine, Electric Generator