Minimising tool wear in drilling of polymer composites using statistical techniques
In recent days, the Fiber Reinforced Composites have replaced many of the engineering components and the composite material manufacturing area is experiencing substantial growth. FRC’s also have replaced materials used in the civil construction area, sporting goods, automobile and aircraft parts, and boat and ship hulls. The composites in general, offer many advantages over homogenous materials like high strength to weight ratio, less weight, flexibility in design, structural and dimensional stability, corrosion and wear resistance along with low tooling cost. Because of the anisotropy in nature, machining composite materials is a complex process especially operations involved in in drilling and milling. Therefore, dry drilling operation on composite materials affects the performance of the drill tool. Hence the present investigation focusses on the study of effect of the machining parameters such as spindle speed (1200, 1500 and 1800 rpm), feed rate (0.1, 0.2 and 0.3 mm/rev), drill diameter (6, 8 and 10mm) on HSS drill tool wear in the drilling of Glass Fiber Reinforced Polyester (GFRP) composites. The present work also aims to optimize the machining parameters in drilling to get minimum flank tool wear. The experiment is designed using full factorial design of experiments. Measure of land width was used to assess the Flank wear of HSS drill. The process parameters are optimized to reduce the tool wear using Response Surface Methodology (RSM). Mathematical model was generated by through regression analysis by developing a Regression equation for flank wear of HSS drill.
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Nudging Corporate Law: From Profit Maximization for Shareholders and Creditors to Maximizing Corporate Value by Reputation
In this study, corporate law will be discussed based on the interests of shareholders and creditors. We hypothesized that, based on the reason-based choice of maximization of corporate value by reputation, the use of the Nudge does not eliminate the inefficiencies caused by increased transaction costs for interest adjustment. Conventional financial evaluation is treated as a separate index. In addition, we assume high transaction costs for the interest adjustment of shareholders and creditors. However, it is possible to set forth the same goal of creating corporate value by reputation, suggesting the possibility that conflicts of interest eventually subside. In addition, we want to develop the idea of interest adjustment of parties as reciprocal altruism through behavioral economics.
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Plants nutrient variability of oil palm and its correlation to fresh fruit bunch yield
In recent times, among of the major problems in oil palm plantations is the lack of proper interpretation of yield maps for site-specific management. The ability to determine and diagnose leaf factors that influencing yield variability of oil palm will benefits in managing the plantation for better yield. A study on spatial variability of N, P, K, Mg and Ca in oil palm leaf was carried out at the Dusun Durian Estate of Golden Hope Plantations Berhad in Selangor, Malaysia. The aim of this study is to obtain accurate and timely information on the spatial distribution and status of N, P, K, Mg and Ca in leaf using semivariogram analysis and geographical information system (GIS), and its correlation to oil palm fresh fruit bunch (FFB) yield. The collection of leaf tissue data was conducted using systematic sampling. A GPS device (AgGPS Trimble) was used to precisely determine samples locations. Geostatistics software and classical statistics were used for data analysis. Correlation analysis was used to determine the strength of the relationship between nutrient content in leaf tissue and FFB yield. From kriged map, results indicate that about 32.2% of the area is low in yield, 51.6% is moderate and 16.2% is high in yield, respectively. Correlation analyses shown the total of N and available of P in the leaf have strong positive relationship (r2 = 0.84 and 0.83) with FFB yields. Thus, result implies that N and P in leaf tissue can be used to determine the FFB yields for oil palm production.
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Plastination a technique for preservation of biological specimens – review
Plastination is a technique for the preservation of human and animal tissues of body parts for teaching and research. it used more than 40 medical and dental colleges in throughout the world. The plastinated specimens are more use full in the field of anatomy, pathology and surgery and all so the plastinated specimens can be displayed in all museums for the public. Keywords: Plastination, preservation, anatomy, pathology, specimens.
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Predator-Prey System with Infection in Predator Only
A three dimensional eco-epidemiological model consisting of prey, susceptible predator, infected predator species, is proposed and analyzed in the present work. From infected predator, the disease is transmitted to the susceptible predator species. Differential predation rate is considered due to disease in predator as the infection reduces the predation ability of infected predator. The recovery of infected predator from disease is incorporated; therefore, an SIS model is taken for predator species. The dynamics of the system is analyzed mathematically and conditions for existence and stability of disease free equilibrium point has been found out. Also conditions for disease to be endemic in predator species are obtained. Numerical simulations have been carried out to justify the results obtained.
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Prof. lixiaofang joined the team of Elixir Editorial Advisory Board from 20th January 2011
We are very happy to announce that from 20th January 2011, Prof. lixiaofang has joined the team of Elixir Editorial Advisory Board. He will carry a special responsibility for dealing with manuscripts based on the Digestive System. Prof. lixiaofang is currently an Associate professor at Digestive System Department, The first people’s hospital of Chengdu, Sichuan, China. The appointment of Prof. lixiaofang as member Editorial Advisory Board strengthens the links and will make it easier for prospective authors to establish contact with the journal. Please send any expressions of interest to chiefeditor@elixirjournal.org. Sincerely Editor-in-Chief
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Prof.K.Geetha joined the team of Elixir Editorial Advisory Board from 21st March 2011
We are very happy to announce that from 21st March 2011, Dr.K.Geetha has joined the team of Elixir Editorial Advisory Board. He will carry a special responsibility for dealing with manuscripts based on the Electrical and Electronics Engineering. Dr.K.Geetha is currently working as Professor, Department of Electronics and Communication Engineering, Karpagam College of Engineering, Coimbatore, India. The appointment of Prof.K.Geetha as member Editorial Advisory Board strengthens the links with Iran and will make it easier for prospective authors to establish contact with the journal. Please send any expressions of interest to chiefeditor@elixirjournal.org. Sincerely Editor-in-Chief
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Program slicing: A Review
Program Slicing is a method for automatically decomposing programs by analyzing their data flow and control flow. Slicing reduces the program to a minimal form called “slice” which still produces that behavior. Program slice singles out all statements that may have affected the value of a given variable at a specific program point. Slicing is useful in program debugging, program maintenance and other applications that involve understanding program behavior. This paper is a review paper on program slicing.
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Redefining Madrassa Education: An Analysis on the Impact of Madrassa Education on the Muslims in Kerala.
The Madrassa education system, which produced many legendary figures in strengthening the religious and social wellbeing of the Kerala state, is in the verge of decline. The responsibility for the failure of the system falls on the religious organizations, teachers, parents and the Mahallu committee. Contemporary Kerala society needs the rejuvenation of the Madrassa education system to ensure religious harmony and overall development of the community and the society. This paper tires to expose the failures of the Madrassa education systems in Kerala and puts forth the remedial measures to rejuvenate the system.
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Redefining Slants of Research in Philosophy of Education as Distinct Academic Discipline
This treatise is envisaged to draw attention to a pertinent stratum of enacting the research problems of philosophy of education. This discourse elaborates the general perception of the concept research in academic disciplines, and then delineates the essence of research in philosophy of education. The purpose of this treatise is to enhance the meeting point between philosophy itself and education as two distinct academic disciplines. In this regard it is fundamentally necessary to accentuate what is relatively positive and constructive in creating a reasonable connection between philosophy and education exclusive of probable partiality to any. As such, the process of teaching and learning or rather education itself and by extension pedagogy occupies a larger space than the theories, principles, and methods as reflected in epistemology, axiology, metaphysics, and logic as the principal components of philosophy as a distinct discipline.
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