Components Of Composites As Engineering Materials - 751 Words

2. Usually stronger than the matrix, therefore it is sometimes called reinforcing phase. Composites as engineering materials normally refer to the material with the following characteristics: 1. These are artificially made (thus, excluding natural material such as wood). 2. These consist of at least two different species with a well-defined interface. 3. Their properties are influenced by the volume percentage of ingredients. 4. These have at least one property not possessed by the individual constituents. Performance of Composite depends on: 1. Properties of matrix and reinforcement, 2. Size and distribution of constituents, 3. Shape of constituents, 4. Nature of interface between constituents. 2.4 CLASSIFICATION OF COMPOSITES Composite materials are classified a. On the basis of matrix material, b. On the basis of filler material. 17 (a) On the basis of Matrix: 2.4.1 Metal Matrix Composites (MMC) Metal Matrix Composites are composed of a metallic matrix (aluminium, magnesium, iron, cobalt, copper) and a dispersed ceramic (oxides, carbides) or metallic (lead, tungsten, molybdenum) phase. 2.4.2 Ceramic Matrix Composites (CMC) Ceramic Matrix Composites are composed of a ceramic matrix and embedded fibers of other ceramic material (dispersed phase). 2.4.3Polymer Matrix Composites (PMC) Polymer Matrix Composites are composed of a matrix from thermoset (Unsaturated polyester (UP), Epoxy) or thermoplastic (PVC,Show MoreRelatedSmart Materials1525 Words   |  7 PagesTECHNOLOGY† PRESENTED BY, SAHIL G. GOVINDWAR. . govindwar.sahil@gmail.com Contact No: 7709575108. BABASAHEB NAIK COLLEGE OF ENGINEERING, CIVIL ENGINEERING DEPARTMENT. PUSAD. . CONTENTS . Sr. No. | Title | Page No. | 1 | Abstract | 1 | 2 | Introduction | 1 | 3 | Classification | 2 | 4 | Advantages and Disadvantages | 4 | 5 | Applications | 5 | 6 | The future | 5 | 7Read MoreCritical Thrust Force Analysis Of Machining Of Gfrp With Coconut Fillers Using Jodrill1741 Words   |  7 PagesCoconut coir is abundantly available in India as a bio-waste. Naturally available coconut fibers in their original form have been used as fillers in glass fiber reinforced epoxy composites. Thrust force being an important parameter in drilling induced damage has been analyzed during drilling of the fabricated composites at four different spindle speeds and three feed rates. Thrust force generally reduced with increase in spindle speed but increased rapidly with feed. Stepped increase in thrust forceRead MoreThe Effect Of Scaffolds On Bone Tissue Engineering1165 Words   |  5 Pagesvital role in bone tissue engineering in order to repair, regenerate tissues by mimicking of natural bone extracellular matrixes. Considering that bone is a composite of minerals and proteins, it is preferred to develop a composite that mimics natural bone. The ideal nanocomposite ma terials should have biocompatibility, suitable mechanical and antimicrobial properties, nontoxicity and surface functionality to favor cell proliferation.1,2 Many organic-inorganic materials have been developed to mimicRead MoreMechanical Properties And Thermal Analysis1583 Words   |  7 Pages Composite structure is a combination of two or more different items that may be distinguished physically, resulting in a final product that has a better performance from each component individually done. It consists of matrix composite materials (polymer, metal or ceramic) and one or more stages of reinforcement (fibers, particles, flakes, or fillers). The combination of the different elements appropriately to achieve a system with structural or functional characteristics of the best that can beRead MoreCase Study : Bridge Based Management1460 Words   |  6 PagesDEFINITION This is a given guide for the upkeep and restoration of an extension stock by demonstrating various techniques by a given plan restrictions and the capacity to evaluating least plan prerequisites for plague level of administrations. [Engineering Management] Problems Associated With Bridges Development Accidents A substantial number of extensions falls as they`re been constructed, which may appear outlandish. Tragically history has that the most dangerous development mischances is amidRead MoreComposite Structure And Its Effect On Weight And Hardness Properties1623 Words   |  7 PagesWonder composite materials, with a power and universal lightweight relative to weight and hardness properties fell over most of the store of metals and alloys recently. Properties composite depends largely on the characteristics of its constituent materials, the distribution and the interaction between them. In general, filler is the main load bearing Members, while the matrix keeps them in the desired location and orientation, as pregnancy transfer means between the fillers and protects them fromRead MoreThe Role Of The Textile Design?1552 Words   |  7 Pagessubjective, visceral engagement with mate-rial and physical computing using tacit textiles expertise. This theoretical prem-ise is explored drawing o n the fields of soft robotics, organic user interfaces and transitive materials for the fabrication of a responsive textile composite. The research uses a range of theoretical references to support its concepts of design thinking and computational materiality and deploys the methodological process of autoethnography as a qualitative system for collectingRead MoreAluminium Metal Matrix Composites For Optimum Mechanical Properties955 Words   |  4 Pagesvdsaritabhutada@gmail.comComparative Study of Aluminium Metal Matrix Composites for Optimum Mechanical Properties 1P.Kanagaraj , 2T. Ravi 1,2 Assistant Professor Mechanical Department 1,2 SVS College of Engineering , Coimbatore Email Id : kanaguhari@gmail.com, travisvsec@gmail.com ABSTRACT The recent study of metal matrix composite mainly deals with the aluminum based composites with the reinforcement of particulates of silicon carbide and aluminum based composites with the reinforcement of particulates of graphiteRead MoreApplications of Non-Destructive Testing971 Words   |  4 Pagesautomotive industry due to the specific needs of each component within the vehicle, along with the ability of the selected testing procedures to detect a defect. As such, the following represents the various sorts of NDT used in the automotive engineering community. 2.1 Ultrasonic Testing Ultrasonic testing is done by producing pulse-waves that are transmitted into materials in order to detect internal flaws or even to characterize the test material. The centre frequencies of the pulse-wave usually rangeRead MoreCarbon Fibre Composites : The Top Level Of Single Seater Motorsports1481 Words   |  6 PagesThese days, Carbon-Fibre Composites (CFCs) are synonymous with the top level of single-seater motorsports – Formula 1. But it wasn’t always this way. Formula 1 chassis design and manufacture has changed with the times. A chassis must be strong, stiff and light to be competitive and safe. As technology has progressed, Formula 1 has been quick to follow in the pursuit of speed and safety. This article explores the history of the Formula 1 chassis in order to understand why every F1 car in the last

Effects of Technology in Higher Education Essay Example

Essays on Effects of Technology in Higher Education Essay The paper "Effects of Technology in Higher Education" is an outstanding example of an essay on education. Modern technology has a significant impact on higher education globally. Advancement in technology has boosted the overall operations of a higher learning institution. It has improved the students’ learning experience. In addition, it has increased the accessibility of the higher learning institutions through the creation of websites known to the public. The introduction of the Massive Open Online Course (MOOC) and other online offerings has significantly benefited the operations, learning, and accessibility of the higher learning institutions (Forbes editors, 2012). Technology has enabled students to no longer to congest auditorium rooms for lectures. Through leveraging online platforms, students can now pre-record lectures and assess lectures anytime, anywhere, and as many times as they want. The institutions are now operating easily since learning platforms provide faculty with learner analytics (Scott, 2005). The institution’s faculty now has greater data on who is learning, what they are learning, and how they participate in the online lectures. MOOCs enable teaching part of a program online and the other part in person. The online course provides flexibility to working professionals and adult students because they can access course material as their schedule permits (Lytras Corti, 2012). The institutions are able to run several programs without inconveniencies. It is made possible because, through online learning, they can reach to their students both in Diaspora and on the campus. Integrated e-commerce in the college and university websites has enhanced accessibility to these institutions. Students can use the university website to contact and get news or updates. The online website also specifies the location of the higher learning institution, which enhances fast access. Therefore, modern technology has developed higher institutions. It has enhanced easier access, improved learning among students. Finally, it has enhanced the operations of higher learning institutions.

A Vision of Teaching Profession in 2025 Free Essays

TITLE: A VISION OF TEACHING PROFESSION IN 2025 Priyanka Joshi Junior Research Fellow (J. R. F) Dept. We will write a custom essay sample on A Vision of Teaching Profession in 2025 or any similar topic only for you Order Now of Education Panjab University, Chandigarh ABSTRACT KEYWORDS: Professionals, Modalities, continuous, latest trends, technology, mentors, rethink, updating, knowledge, knowledge explosion. We Lead, Care, Inspire For the future of the Nation passes through our hands as Teachers Technological changes in the era of modernization have significantly affected the role of teachers’ as professionals. As the future of education, rest on the competencies, professional growth and abilities of teachers as professionals so, it cannot be ignored. Related article: HR Map Explained According to Caroll and Resta (2010) teachers of today and tomorrow must be ready to facilitate learning in multiple modalities embracing; greater diversity of space, time, resources, media and methods for learning as well as the new 21st century environments which are synchronous and asynchronous, face to face and virtual. Further, Garoia(2012) referred that the present century has visioned so much of expectations from education which are so high that the teachers of today and tomorrow have to continuously rethink about their professional development. She further highlighted that this professional development is ought to be continuous in process because of; knowledge explosion and latest trends associated to methodology, technology, social and teacher networking. All these demands and requirements have posed a demand on teachers to assess, update, renew and modify themselves as mentors than teachers. The present paper will highlight; a) The teacher of today b) Changing role of the teacher in the present scenario c) Lifelong learning as renewal and updating of knowledge d) In-service growth and teachers †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.. Followed by conclusion and suggestions. * The Teacher of Today The teacher of today symbolizes himself to be professional in true sense because of the emerging concepts of criteria of appointments in schools colleges and universities. No more, the present century holds teaching as a profession by ‘chance’ but teaching as a ‘choice’. This scenario has placed an emphasis on the teachers to develop their potential, capacities in a way that no more they are called as a ‘simple’ but ‘effective’ in performance by performing a quite range of functions such as ; classroom management, teaching and learning strategies and how to implement them successfully with professional ethics, student learning and so on. These views were strengthened by Travers Reborc (2008) who professed that teacher professionalism extends beyond one’s ability to understand content. Here, the educator must discover if the students are being reached in an effective way. This calls for a profession which involves a lifelong career commitment and service to society. Teaching as a profession, no doubt is characterized by intellectual pursuits within a code of ethics and is highlighted by the making of independent professional judgements. But going by the present scenario, our country witness mass bunking from the classes, cheating, private tuitions and so on. To avoid this, this means that the teacher of today needs much more than just a mere subject expert. Further, through extensive training and professional development, they will incorporate in themselves lot of life skills which will not only enhance their performance but quality wise they will help them to grow to greater heights. * Changing Role of the Teacher in the Present Scenario The present scenario is characterized by the changing needs of the teacher which has pressurized him to change, reform and update according to the new teaching strategies, classroom practices and knowledge explosion. Let us have a look at the review how the role of the teachers has gradually changed:- * Koppic and Knapp (1998) highlighted that teacher can develop themselves with respect to practice if they focus on six dimensions narrated as; knowledge, professionalism, instruction, collaboration, agency and authority. He further added by saying that teachers to grow must make initiatives to make sense of new policies, ideas, programs and their own work. * According to Cohen Ball (1999) review of the federally funded research suggest that the teacher must be a researcher, educator and reformer. The research further highlighted that now is the time that he must understand when curriculum, instructional materials and assessments so that he can focus on the goal and prospects of educational improvement to be enhanced. * Thomson Zeuli (1999) advocated that if teachers want to see that their students work they must enable themselves to change so that they can make distinctive changes in teaching practice and student learning. They further concluded that the most effective teacher learning is to focus on instruction-as- interaction, rather than on isolated elements of instruction. Lieberman Miller (2000) described the new professional teacher as researchers, meaning-makers, scholars, and inventors. Also they further stated that teachers establish a firm professional identity through which they act as the role model by updating themselves through the lifelong learning . * Lifelong learning as renewal and updating of knowledge Professional development is a normal part of school c ulture. Professional development is required in order to maintain certification. School corporations mandate that teachers participate in staff development opportunities offered by the school district throughout the year. Teachers may also be expected to draft growth plans to give direction to their ongoing learning. Salary schedules also encourage teacher learning by offering higher salaries to individuals with more training, degrees or credits. Occasionally teachers are permitted to attend workshops and conferences outside the school system. Teachers are expected to grow as professionals and need to learn while they are teaching if students are to receive an optimal education. While schools do allocate limited funds and release time to professional development, a view of teachers as life-long learners is a perspective that is missing in most schools given the limited cope, quantity, and quality of professional development available to teachers. It is not uncommon to hear the phrases â€Å"life-long learning† or â€Å"life-long learner. †These terms adorn school mission and goal statements. Few people would malign the importance of developing life-long learners, but fewer suggest ways in which such an ideal may be accomplished. Such a goal need not remain illusory. It is crucial that schools and communities recognize the importance of developing teachers as life-long learners. It seems foolish to hope to engender life-long learning skills and attitudes in children without paying attention to those same skills and attitudes in developing the teachers of those children. And if a teacher will remain a lifelong learner it would be facilitate him/her to cater to the upcoming problems in the realm to teaching learning process and the demands of the upcoming generation. * In-service Growth and Teacher As professionals we still have a long way to go. Even now in in-service teacher education is seldom conceptualized in practice as the continuation of pre service preparation. Too frequently in service practices are characterized by an aggregate of incidental activities, sporadic in occurrence, lacking in productive purpose, unorganized in structure and unsynchronized within the framework of a school district’s total operation. Perhaps a staff does grow or improve through such activities; however, the evidence seems to indicate that the bird of chance wings high on the winds of such uncertainty. Programs or practices of in service teacher education which appear to be producing results of a promising and lasting character are those in which conscious effort is made to reduce the element of chance in the development of staff. At the practical as well as the therotical level, positive and directional growth is enhanced through a program of inservice teacher education which develops activities planned most carefully in terms of directional purposes, organizational structure, and operational processes which are synchronized and complementary. Conclusion Knowledge is no longer considered a commodity which only a subject expertise can provide. In the present scenario knowledge is something which individuals constructs and create from their own experience with the materials, ideas texts they have. Teachers of today and of preparation (pre-service teachers) have to construct themselves, reform themselves according to the teachers they actually have and develop themselves professionally according to the new and emerging ideas of the knowledge, learning and instruction in their own learning situations in their classrooms. This give a call to teachers to work and learn in a way in which they can compete efficiently, confidently and critically so that he can become efficient in true terms and targeted as a priority. Suggestions * To promote professional values and attitudes such as reflective practice, autonomous learning and collaboration. * To improve Practical teaching competencies. * To consider teaching as a profession and promote teaching as an attractive career; * to keep a balance between theory and practice; All beginning teachers, during their first years in the profession receive professional and personal support (‘induction’); * To engage themselves in regular reviews of their training needs and effective continuing professional development. * To develop and improve themselves as leaders for learning. This means that the role of the teacher in the year 2020 demands him to update and rehearse himself in a seamless continuum so that he has a assured quality. REFERENCES Ball, D. L. Cohen, D. K. (1999). Developing practice, developing practitioners: Toward a practice-based theory of professional education. Caroll, T. , Resta, P. (2010). Redefining teacher education for digital-age learners. Summit report from the Invitational Summit on Redefining Teacher Education for Digital-Age Learners. Retrieved from: http://redefineteachered. org/sites/default/files/SummitReport. pdf? q=summitreport Garoia,Valentina. (2012) . A closer look at the future of teachers’ profession in 2025. Retrieved from http://insight. eun. org/ww/en/pub/insight/thematic_dossiers/articles/learning_networks/2025. html. Lieberman, A. , ; Miller, L. (2000). Teaching and teacher development: A new synthesis for a new century. In R. S. Brandt How to cite A Vision of Teaching Profession in 2025, Essay examples

Grandfather Said by The Ethnographers free essay sample

The Ethnographers- an Indie-Rock band- have written some of the most poetic songs I have ever had the pleasure to listen to, including †Grandfather Said†. In this soothing and melodious mix of music and voice, the singers tell the story of life, and the natural cycle of death. The intro of the song starts with a boy talking to a leaf he finds. He asks it what it thinks of dying, and when it doesn’t answer, he picks it up. After realizing what’s going on, the leaf immediately tells him that what he’s doing is wrong, and that she wants to die in the Forest, not in his song. â€Å"I asked this leaf as she fell from a tree, I said What do you think of dying? and she said nothing back to me So I picked her up, and out of the dirt She said no, no, no, no, this is all wrong she said I belong in the forest, not as a line in one of your songs So I let go, and she fell to the earth I belong in the forest† In the next few lines, the vocalist tells us about his grandfather, who wonders if his grandson fears death. We will write a custom essay sample on Grandfather Said by The Ethnographers or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Of course, after listening to the wise wisdom of the leaf, the young man says â€Å"no, It’s as natural as the setting sun.† In a turn of events, the grandfather walks into the setting sun, completing his journey. What a beautiful way to represent passing from one place to another, and a symbolic interpretation of sorrow; like the sun, everyone will die eventually, it’s a mournful cycle of light and dark, Life and Death. â€Å"This old man said do you fear death, son? I said, no, no, no, its just as natural as the setting sun He walked away, into the sunset to die I belong in the forest† After the Grandfather dies, the boy feels like he has to go through so many tests, and trials, and questions. He gets tired, and lets his words fail him at times. He resents falling asleep, and he doesn’t want to forget the pain he clings so desperately to. It’s the only emotion he feels, and yet he asks to drift off after so much struggle. â€Å"All these true and false fill in the blanks have been Making my eyes heavy and making my voice faint To spite my tired eyes, Im staying up all night Staying up all night, staying up all night Sing, sing, sing, sing me a lullaby Sing, sing, sing, sing me a lullaby Sing, sing, sing, sing me a lullaby to sleep A lullaby I belong in the forest Sing, sing, sing, sing me a lullaby Sing, sing, sing, sing me a lullaby Sing, sing, sing, sing me a lullaby to sleep† I feel like we can all gain some solace from this song, and realize that, like the setting sun, and the death of a leaf, we are all a tragically wonderful piece of nature.