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Prakash, K.
- BITSTREAMS Compression of RLE with Bitstuffing
Abstract Views :184 |
PDF Views:3
Authors
Affiliations
1 Tamilnadu College of Engineering, Coimbatore, Tamilnadu, IN
1 Tamilnadu College of Engineering, Coimbatore, Tamilnadu, IN
Source
Software Engineering, Vol 7, No 3 (2015), Pagination: 89-91Abstract
Recent technological breakthrough in high speed processing units and communication devices have enabled the development of high data compression schemes. This paper presents a modified scheme for Run length encoding (RLE). Run length encoding algorithm performs compression of input data based on sequences of identical values. RLE is having some limitations and they have been highlighted and discussed in detail in this paper. In RLE largest number of sequences may increase the number of bits to represents the length of each run, which may increase the size of memory stack which may results in performance degradation. For n-bit run it requires 2n memory stack. If run is greater than n bits we require 2n+1 memory stack to store the run value. An efficient coding technique, Bitstuffing has been suggested in this paper. A new bit different from the original sequence is added in between reduces the repeat length, thereby with the same stack we can represent length as well. This technique is described using VHDL and is implemented on Saprtan3 FPGA.
Keywords
Bit Stuffing, Compression, Memory Stack and Run Length Encoding (RLE).
- Simultaneous Spectrophotometric Estimation of Ezetimibe and Simvastatin in Bulk and its Combined Dosage Form
Abstract Views :169 |
PDF Views:1
Authors
Affiliations
1 S.N.Vanitha Pharmacy Mahavidyalaya, Hyderabad, IN
1 S.N.Vanitha Pharmacy Mahavidyalaya, Hyderabad, IN
Source
Asian Journal of Research in Chemistry, Vol 3, No 4 (2010), Pagination: 903-905Abstract
Two simple, sensitive, accurate, precise, rapid and economical methods were developed for the estimation of Ezetimibe and Simvastatin in solid dosage form. First method is based on simultaneous equations and second method is based on absorbance ratio method. Ezetimibe has absorbance maxima at 231.2 nm and Simvastatin has Absorbance maxima at 246.2 nm in methanol. The linearity was obtained in the concentration range 2-10 μg/ml for both Ezetimibe and Simvastatin. In the first method the concentration of the drugs were determined by using simultaneous equations and in second method, concentration of the drugs were determined by using ratio of absorbance at isoabsorptive point and at λ-max of one of the drug. The proposed method was statistically validated and found that it is simple, accurate, precise and suitable for the routine analysis of pharmaceutical formulations.Keywords
Simultaneous Equations, Absorbance Ratio, Iso-Absorptive Point, Validation.- A Study of Image Processing in Agriculture
Abstract Views :247 |
PDF Views:4
Authors
Affiliations
1 Department of Mathematics, BIT, Sathyamangalam, IN
1 Department of Mathematics, BIT, Sathyamangalam, IN
Source
International Journal of Advanced Networking and Applications, Vol 9, No 1 (2017), Pagination: 3311-3315Abstract
Agriculture is the backbone of human sustenance on this world. Now a days with growing population we need the productivity of the agriculture to be increased a lot to meet the demands. In olden days they used natural methods to increase the productivity, such as using the cow dung as a fertilizer in the fields. That resulted increase in the productivity enough to meet the requirements of the population. But later people started thinking of earning more profits by getting more outcome. So, there came a revolution called "Green Revolution". In this paper we implemented image processing using MATLAB to detect the weed areas in an image we took from the fields.Keywords
Image Processing, Agriculture, Image Segmentation, Classification, Plant Diseases.Full Text
References
- Hetzroni , Hossein Nejati, Zohreh Azimifar, Mohsen Zamani; “Using Fast Fourier Transform for weed detection in corn fields”; IEEE; 2008.
- Pydipati, Xavier P. Burgos-Artizzu, Angela Ribeiro, Maria Guijarro, Gonzalo Pajares; “Real- time image processing for crop/weed discrimination in maize fields”; Elsevier; 2010.[4]
- Huang, Grianggai Samseemoung, Peeyush Soni, Hemantha P. W. Jayasuriya, Vilas M. Salokhe; “Application of low altitude remote sensing (LARS) platform for monitoring crop growth and weed infestation in a soyabean plantation”; Springer; 2012.[4]
- Pugoy and Mariano,G. Jones, Æ Ch. Ge´e, Æ F. Truchetet; “Modeling agronomic images for weed detection and comparison of crop/weed discrimination algorithm performance”; Springer; 2008.[4]
- Anup Vibhute, S K Bodhe; “Applications of Image Processing in Agriculture: A survey; International Journal of Computer Applications”; 2012.[4]
- Alasdair McAndrew; “Introduction to digital image processing with MATLAB”; Course Technology; 2004.[1]
- S. Annadurai and Shanmugalakshmi, Fundamentals of Digital image processing India Pearson Education, 2007 , pp.310.
- Zhang, Pengyun and L.jigang, “Computer assistance image processing spores counting, “ in 2009 proc. Int.Asia Conf. on informatics in Control, Automation and robotics, pp.203-206.
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- Hairuddin ,S.Phadikar and J.Sil, “Rice disease indentification using pattern recongnition techniques,” in Proc. 11th Int. Conf. on computer and information technology, 2008, Khulna, Bangladesh, pp. 420-423
- R. Sathiskumar, Dr B Nagarajan, R.Karthigamani, Dr M.Gunasekaran “Region based object extraction using ANFIS combined with support vector machines” in 2017 Asia Life sciences.
- P. Saravanamoorthi “ Modified Bee Colony optimization for the selection of different combinations of food sources”, International Arab Journal of Information Technology, Vol. 13, No. 6, 2016.
- Prakash, K & Nagarajan, B 2014, ‘A Mathematical Based Approach For Vehicle Object Classification’, International Journal of Research in Computer Applications and Robotics, vol.2, no.7, pp.58-64.
- Sanyal, Abak, T, Barış, U & Sankur, B 1997, ‘The Performance of Thresholding Algorithms for Optical Character Recognition’, Int. Conf. on Document Analysis and Recognition: ICDAR’97, Ulm., Germany, pp.697-700.
- Kai , Kurniawati Ackley, D & Littman, M 1992, ‘Interactions between learning and evolution’, In C. G. Langton, C. Taylor, J. D. Farmer, and S.Rasmussen, eds., Artificial Life II. Addison−Wesly
- Study on Weldability of EN 10025-6 S550 QT Steel
Abstract Views :296 |
PDF Views:5
Authors
Affiliations
1 Engineering Workshop, Larsen & Toubro Limited, IN
2 Larsen & Toubro Limited, IN
1 Engineering Workshop, Larsen & Toubro Limited, IN
2 Larsen & Toubro Limited, IN
Source
Indian Welding Journal, Vol 51, No 4 (2018), Pagination: 86-92Abstract
Cracks developed in the 90 mm thick EN 10025-6 S550 QT steel plates assembled to form a box unit. After assembly the surface cracks generated longitudinally along the elongated grains while preheating or performing ischolar_main run. Root cause analysis was conducted to investigate the reason for the failure and also how to specify the “conditions of materials on delivery” during procurement is generated. Various tests such as visual test, chemical composition, inclusion rating, microstructure, dye penetrant test and hardness tests were conducted. The investigation revealed that the failure cracks could be due to temper embrittlement due to the segregations of impurities such as tin, arsenic, phosphorus and antimony, etc. in the grain boundaries and resulted in ductile to brittle transformation when exposed in the temperature. It is observed that, depends on the concentration of Ti and N in steel, coarse and cuboidal TiN particles of several micrometers in size act as potential sites for cleavage crack initiation. Furthermore, during the steel making process if sulfur is not properly controlled, then large MnS inclusions can also form during solidification. Soft MnS inclusions elongate during the subsequent hot rolling process, which deteriorate ductility and impact toughness. Hence, it is essential to specify the J factor value and inclusion rate during the procurement of steel.Keywords
Inclusion Rate, Welding, Quenched Hardened Steel, Tempering, J-factor.References
- Anmark N, Karasev A and Jonsson PG (2015); The effect of different non-metallic inclusions on the machinability of steels, Materials 8, pp. 751-783. doi:10.3390/ma 8020751.
- Grosse-Wordemann J and Dittrich S (1983); Prevention of temper embrittlement in 21/4 Cr-1 Mo weld metal by metallurgical action, Welding Journal, 10(5) pp. 123s 128s.
- American Society for Metals, Volume 4.
- Optimization of Application Techniques for Quenched and Tempered Steel-S550Q
Abstract Views :373 |
PDF Views:5
Authors
Affiliations
1 Engineering Workshop, Larsen & Toubro Limited, Kanchipuram, IN
2 DGM-Larsen & Toubro Limited, Kanchipuram, IN
3 DGM-L&T Construction, Larsen & Toubro Limited, Kanchipuram, IN
1 Engineering Workshop, Larsen & Toubro Limited, Kanchipuram, IN
2 DGM-Larsen & Toubro Limited, Kanchipuram, IN
3 DGM-L&T Construction, Larsen & Toubro Limited, Kanchipuram, IN
Source
Indian Welding Journal, Vol 52, No 2 (2019), Pagination: 35-43Abstract
EN10025-6 S550Q is high strength steel classified under quenched and tempered (Q&T) manufacturing technique. S550Q is specially designed and used by the authors for welded steel structures for the purpose of heavy lifting and lowering. The entire processing techniques like cutting, edge preparation, welding, and bending are of major importance to the consistency of fabricated structure. This study comprises of introduction to HSS-S550Q and addresses various important variables by practically. The following main factors are taken to consideration heat input during cutting, edge preparation, and welding, cooling cycle, Hydrogen induced cracking (HIC). Stress Relieving (SR) is mandatory after weld fabrication. The first was to establish a need for SR to achieve desirable weldment properties. SR has been reported to have Complementary benefits such as tempering of WM and HAZ regions, and allowing the effusion/diffusion of hydrogen away from the weld region. Bend testing of cross-weld samples was used to qualify the ductility of the weldment before and after SR. In addition, impact, tensile and hardness properties, microstructures were quantified before and after SR.Keywords
S550Q, EN 1011-2, Thermal Cutting, Welding, Stress Relieving, ASME SEC-IX (2015), EN ISO15614.References
- Basu B and Raman R (2002); Microstructural variations in a high-strength structural steel weld under isoheat input conditions, Welding Journal, 81, pp. 239- 248.
- Porter D (2006); Development in hot-rolled high-strength steel, Nordic Welding Conference 06 on New Trends in Welding Technology, Tampere, Finland.
- Pisarski HG and Dolby RE (2003); The significance of softened HAZs in high strength structural steels, Welding in the World, 47(5/6), pp. 32-40.
- Umekuni A and Masubuchi K (1997); Usefulness of under matched welds for high-strength steels, Welding Journal, 76(7), pp. 256-263.
- Wang J, Li Y and Liu P (2003); Effect of weld heat input on toughness and structure of HAZ of a new super-HSS, Material Science, 26(3), pp. 301-305.
- Magudeeswaran G, Balasubramanian V, Madhusudhan Reddy G and Balasubramanian TS (2008); Effect of welding processes and consumables on tensile and impact properties of high strength quenched and tempered steel joints, Journal of Iron and Steel Research International, 15, pp. 87-94.
- Shi Y and Han Z (2008); Effect of weld thermal cycle on microstructure and fracture toughness of simulated heat-affected zone for a 800 MPa grade HSS, Journal of Materials Processing Technology, 207, pp. 30-39.