...Advances in Metal Forming Research at the Center for Precision Forming - Industry/University Cooperation – T. Altan, P. Sartkulvanich, N. Kardes The Center for Precision Forming (CPF), The Ohio State University, Columbus, Ohio, USA Abstract The demand for application for lightweight materials such as Ultra/Advanced High Strength Steels (U/AHSS), aluminum alloys, magnesium alloys and boron steels in automotive industry is increasing to reduce vehicle weight and increase crash performance. The use of these relatively new materials requires advanced and reliable techniques to a) obtain data on material properties and flow stress, b) predicting springback and fracture in bending and flanging, c) selecting lubricants and die materials/coatings for stamping and forging and d) designing tools for blanking and shearing. In addition, designing the process and tooling for a) hot stamping of boron steels, b) warm forming of Al and Mg alloys, and c) optimizing the use of servo-drive presses require advanced Finite Element based simulation methods. CPF is conducting R&D in most of these topics and also in many hot and cold forging related topics. This paper gives an overview of this research and discusses how the research results are applied in cooperation with industry. Keywords: Metal Forming, Sheet metal, Forging, FEM 1 INTRODUCTION The Center for Precision Forming (CPF) has been established with funding from the National Science Foundation (NSF) and a number of companies (www.cpforming...
Words: 3894 - Pages: 16
...Panspermia The answer to the question: “where did we come from?” has been sought after by mankind for ages. Many different hypotheses have been crafted over the centuries and have been topics of debate for thousands of years; however we still do not have a definitive answer. Types of theories range from those based on religious doctrine to those which take a strictly scientific approach. One possibility that leans towards the latter is the panspermia theory which suggests that life did not originate on earth; but rather came to earth from somewhere else in the universe. It is the idea that the ingredients for life are found throughout the universe and are able to initiate life given a habitable environment. While this theory may seem improbable to some, increasing evidence suggests that this idea may have more truth to it than some may believe. In order for life to have come to earth from somewhere else in the universe, it would have had to survive the harshest environment we know of; space. These organisms would have been exposed to massive amounts of radiation, extremely cold temperatures (nearly -273.15ºC), and extreme atmospheric pressure1. When we think of organisms that thrive in the harshest environments on earth we think of extremophiles, and perhaps the most renowned and complex extremophile is the tardigrade. These dry aquatic invertebrates are known to be one of the most resilient species on earth and have received a lot of attention from researchers regarding...
Words: 1345 - Pages: 6
...Assignment On Engineering Materials (Glass) Introduction Glass is a non-crystalline solid material. Glasses are typically brittle, and often optically transparent. The most prevalent type of glass, used for centuries in windows and drinking vessels, is soda-lime glass, made of about 75% silica (SiO2) plus Na2O, CaO, and several minor additives. Often, the term glass is used in a restricted sense to refer to this specific use. [pic] [pic]Roman Cage Cup from the 4th century A.D. In science, however, the term glass is usually defined in a much wider sense, including every solid that possesses a non-crystalline (i.e. amorphous) structure and that exhibits a glass transition when heated towards the liquid state. In this wider sense, glasses can be made of quite different classes of materials: metallic alloys, ionic melts, aqueous solutions, molecular liquids, and polymers. Of these, polymer glasses (acrylic glass, polyethylene terephthalate) are the most important; for many applications (bottles, eyewear) they are a lighter alternative to traditional silica glasses. Glasses play an essential role in science and industry. Their chemical, physical, and in particular optical properties make them suitable for applications such as flat glass, container glass, optics and optoelectronics material, laboratory equipment, thermal insulator (glass wool), reinforcement fiber (glass-reinforced plastic, glass fiber reinforced concrete), and glass art (art glass, studio glass). ...
Words: 6654 - Pages: 27
...Rubberwood Processing Manual CFC/ITTO/72 PD103/01 Rev.4 (I) “Demonstration of Rubberwood Processing Technology and Promotion of Sustainable Development in China and Other Asian Countries” Research Institute of Wood Industry Chinese Academy of Forestry Beijing 2007.6 Rubberwood Processing Manual Authors of this manual: Zhou Yongdong, Associate Professor Jiang Mingliang, Professor Gao Ruiqing, Associate Professor Li Xiaoling, Senior Engineer CFC/ITTO/72 PD103/01 Rev.4 (I) “Demonstration of Rubberwood Processing Technology and Promotion of Sustainable Development in China and Other Asian Countries” Project leader: Ye Kelin, Professor, Director of CRIWI Lu Jianxiong, Professor Executing Agency: Research Institute of Wood Industry Chinese Academy of Forestry Beijing 100091 P.R.China Tel: +86-10-6288 9482 Fax: +86-10-6288 1937 Email: yekelin@caf.ac.cn jianxiong@caf.ac.cn 2 Table of Contents Foreword...........................................................................1 Chapter 1 Sawing of Rubberwood .................................3 1 Sawing Equipments ............................................................. 4 2 Sawing technique................................................................. 8 2.1 Quarter Sawn ............................................................ 8 2.2 Back Sawn .............................................................. 10 2.3 Live Sawn ............................................................... 13 2.4 Radial sawn......
Words: 13493 - Pages: 54
...THE COMPARISON OF PHOTOSYNTHESIS AND SOLAR CELLS 1 The Comparison of Photosynthesis and Solar Cells THE COMPARISON OF PHOTOSYNTHESIS AND SOLAR CELLS 2 Abstract This paper will compare and contrast photosynthesis and the semiconductor based solar cell. This will be accomplished by detailing three similarities, and three differences between the two. The first of the similarities being the absorption of solar energy, the second being the transformation of solar energy into a different more useable form of energy, and finally the third being that they both use organic colorants to attract the sun’s rays. The three differences being that one produces chemical energy and the other electrical energy. The second difference is that one occurs naturally and the other is manmade, and the third difference is that one is cost effective and the other are expensive to produce. This paper will also describe how the laws of thermodynamics apply to each of the systems, giving the reader even further insight on the topic at hand. THE COMPARISON OF PHOTOSYNTHESIS AND SOLAR CELLS 3 The Comparison of Photosynthesis and Solar Cells Photosynthesis is the process in green plants and other organisms by which carbohydrates are synthesized from carbon dioxide and water using light as an energy source. Semi-conductor based...
Words: 1014 - Pages: 5
...The relation between geology and medicine is quite intriguing and can be dated back to the times of Hippocrates and Aristotle. For centuries man has looked up to Earth for the numerous answers he seeks concerning his own body, an amalgamation of elements once sheathed in Earth. To his surprise man has found that geology is both a poison and remedy to his health. In my paper I present the two sides of the geologic coin in the world of medicine. The rocks below our feet can be deemed culprit for a number of health related issues. How many times have we heard that, ‘We are what we eat’? The source of human nutrition is cultivated from the soil. Farmers throughout the globe consider the soil as the source of their family’s bread, however dissolved material, both beneficial and harmful, get incorporated into the ground. Bunnell’s article, ‘Medical Geology: a globally emerging discipline’, discusses the “Endemic diseases correlative with soil deficiencies in selenium, the juvenile cardiomyopathy “Keshan Disease”, and the iodine deficiency disorders including goiter and myxedematous cretinism.” (Bunnell) Another area of geology I would be focusing on is groundwater; groundwater as we know is the largest reserve of fresh water to humans. So how can water something essential to human life be harmful? The answer is contamination. Contaminants in water, even present in trace amounts, can be deemed culprit for delayed brain growth, cancer and many other problems. As stated in Robert...
Words: 1505 - Pages: 7
...Minex has emerged as a benchmark in providing total alloying solutions making it a $100 million company. The following products are regularly being used by reputed foundry industries: IRON FOUNDRIES: Ferro Silicon Magnesium Alloys for S.G. Iron production. Barium, Strontium, Calcium and Zirconium based inoculants. Nickel Magnesium Alloys. Rare Earth and Mischmetal Cored wires for S.G.Iron production, inoculating wires of various specifications for S.G. Iron production.Minex Wire Injection system for injection of Ferro Silico Magnesium cored wires and Inoculants cored wires. STEEL FOUNDRIES: Ferro, Aluminum Ferro, Silico, Calcium Ferro, Titanium Ferro, & Zirconium Cored Wires. ALUMINUM FOUNDRIES: Titanium, Boron, Aluminum, Aluminum-Boron, Iron Tablets. Aluminum-Chromium, Aluminum-Strontium, Aluminum-Iron Cored Wire Injection System. In the field of Cored Wire Feeder and Cored Wire, Minex is pioneer in this part of the world, having introduced this technology during the Eighties, initially with Wire Feeder and Metallurgical Cored Wires. Minex has installed, provided technological support and evolved Wire Injection System since 1988 and so far over 400 Minex Installations are in operation within India and other south Asian countries for various ladle size from 1 MT to 300 MT, with single-strand Wire Injection to Four Strand Wire Injection. The Cored Wires are being manufactured with either Horizontal or Vertical Flipping and shrink wrapped and palletized...
Words: 6411 - Pages: 26
...KERN COUNTY RECYCLING GUIDE 2013 TABLE OF CONTENTS Curbside Recycling Programs ........................2 Drop-off Recycling Programs .........................4 Buyback Recycling Programs ........................6 Recycling Automotive Products ......................9 Recycling Bulky Waste ................................10 Commercial Recycling .................................11 Construction & Demolition Material .............12 Special Recycling Programs & Education ......13 Electronic Waste (E-Waste) ..........................14 Green Waste Recycling ...............................15 Recycling Hazardous Waste ........................16 Junk Mail ....................................................18 Recycling Market Development Zone ...........19 Waste Disposal Site Locations & Schedule ....20 A - Z Directory ............................................21 Illegal Dumping ..........................................30 www.KernCountyWaste.com IMPORTANT RECYCLING/ WASTE CONTACT NUMBERS Kern County Recycling Hotline ............................(661) 862-8979 Kern County Waste Management Department Local ........................................................................ (661) 862–8900 Toll-free ......................................................(800) 552–KERN option 6 ..................................................................... (800) 552–5376 option 6 TTY – ready............................................................. (800) 735–2929 Website ............
Words: 12503 - Pages: 51
...Water drainage techniques, materials, processes and maintenance (Name of Student) (Name of Institution) Water drainage techniques, materials, processes and maintenance Under ordinary conditions rain water seeps into the ground and forms underground water. Most of the water that falls as rain soaks into the ground or gets carried away by rivers. But in urban areas, the built environment alters the natural drainage of water, with hard surfaces increasing both the rate and amount of rainwater that turns into run-off. And it has to go somewhere. Traditional piped ‘drains’ have a limited capacity to cope with the high levels of surface water generated by extreme rainfall events. And, when the capacity of one or more parts of the drainage system is exceeded, the worst happens. For example, in the floods of June 2007, extreme rainfall in the Midlands and the north of England led to large-scale urban flooding, with over 55,000 properties affected: two thirds of these were from surface water run-off overloading drainage systems. In addition to flood risk, large amounts of surface water run-off can cause water quality problems. As water runs over hard urban surfaces, it picks up pollutants that are washed into water courses. For example, run-off from roads contains heavy metals and hydrocarbons which can seriously impact on water quality. A well planned drainage infrastructure helps to manage water run-off by preventing domestic...
Words: 1695 - Pages: 7
...iodine and the alkali metal triad of lithium, sodium and potassium he proposed that nature contained triads of elements the middle element had properties that were an average of the other two members when ordered by the atomic weight (the Law of Triads). This new idea of triads became a popular area of study. Between 1829 and 1858 a number of scientists (Jean Baptiste Dumas, Leopold Gmelin, Ernst Lenssen, Max von Pettenkofer, and J.P. Cooke) found that these types of chemical relationships extended beyond the triad. During this time fluorine was added to the halogen group; oxygen, sulfur,selenium and tellurium were grouped into a family while nitrogen, phosphorus, arsenic, antimony, and bismuth were classified as another. Unfortunately, research in this area was hampered...
Words: 1914 - Pages: 8
...today's world. Conventional energy resources are not only limited but also the prime culprit for environmental pollution. Renewable energy resources are getting priorities in the whole world to lessen the dependency on conventional resources. Solar energy is rapidly gaining the focus as an important means of expanding renewable energy uses. Solar cells those convert sun's energy into electrical energy are costly and inefficient. Different mechanisms are applied to increase the efficiency of the solar cell to reduce the cost. Solar tracking system is the most appropriate technology to enhance the efficiency of the solar cells by tracking the sun. A microcontroller based design methodology of an automatic solar tracker is presented in this paper. Light dependent resistors are used as the sensors of the solar tracker. The designed tracker has precise control mechanism which will provide three ways of controlling system. A small prototype of solar tracking system is also constructed to implement the design methodology presented here. Index Terms:- MPPT I. INTRODUCTION Now a day’s electricity generation using solar mobile has been growing fast day today. In order to obtain solar energy as much as possible, the study of the efficiency for PV systems has attracted many researchers and engineers attention. In general, there are three methods to increase the efficiency of PV systems. The first method is to increase the generation efficiency of solar cells; the second one is related...
Words: 2367 - Pages: 10
...process parameter that influences the properties of wear behavior on the DMLS components. It has been found that part orientation, one of the selected process parameter had more influence on wear as compared to other selected process parameters. Keywords—ANOVA, DMLS, Taguchi, Wear. I. INTRODUCTION The major advantage of this process is it can use wide range of metal powders such as direct steel, bronze based powder etc. the Cu-based metal powders are also being used for purity and better surface finishing [2]. The major drawback for this process is the surface finish [3] and the wear [4] of the material. An experimental study on the sliding wear behavior of in situ Cu-TiB2 nano-composites fabricated by the reaction of pure titanium and copper-boron on a pin-on-disk wear tester under dry sliding conditions, rubbing against medium carbon steel disk at sliding speed ranging from 0.089 to 0.445 m/s and at loads between 20 N and 140 N. From the experiment it was found that the hardness, yield strength and wear resistance...
Words: 2877 - Pages: 12
...JUNIOR 1 S Y 2000 - 2 0 0 1 V o l . 20 N o . 1 C O N T E N FOR LOVE OF DIAMONDS These brilliant gems are not only for fashion but find many uses in other industries as well. CHEMISTRY: BUILDING BLOCKS OF MODERN CIVILIZATION Understand the significance of chemistry throughout man’s history. NUCLEAR CHEMISTRY: TOWARDS A SAFE ENERGY SOURCE Is nuclear technology a boon or bane of science? Read on. T S ib er s, De ar BB su bs cr ng ga zin e is ma ki Ba to Ba la ni ma e ma ga zin e. to yo ur fa vo rit lled so me ch an ge s a new section ca c g the changes is Amon s wi th sc ie nt ifi .” It de al “P se ud os ci en ce pt io ns th at an d mi sc on ce ve no tio ns , my th s, e. Al so , we ha pu la r at on e tim we re po ” se ct io n to “C yb er wo rld ex pa nd ed ou r ac tiv ity se ct io n. e a we b- lin ke d in cl ud wi ll th es e ch an ge s We ho pe th at re nc e stu di es mo ur sc ie he lp ma ke yo jo y! re fu n! En re le va nt an d mo Th e Ed ito r MEDICINE’S POTENT MIXTURES AND SOLUTIONS Chemistry plays a major role in our existence through important medical applications. R E G U L A R F E AT U R E S 3 Science & Technology News 5 Filipino Scientists and Inventors BOARD OF ADVISERS Violeta Arciaga, Jaime F. Bucoy Jose C. Calderon, Victoria V. Cervantes, Juanita M. Cruz, Belen P. Dayauon Medical Facts and Fallacies 9 Livelihood Technology / I’d Like to Know 10 Cyber World CONSULTANT ...
Words: 8787 - Pages: 36
...A SEMINAR PAPER ON PROSPECT OF INTEGRATED NUTRIENT MANAGEMENT IN AGRICULTURE BY ADELAKUN EMMANUEL OLUWAGBENGA. CSP/07/9943 SUMMITTED TO DEPARTMENT OF CROP, SOIL AND PEST MANAGEMENT. SCHOOL OF AGRICULTURE AND AGRICULTURAL TECHNOLOGY, FEDERAL UNVERSITY OF TECHNOLOGY AKURE IN PARTIAL FULFILLMENT OF THE REQUIREMENT FOR THE AWARD OF BACHELOR OF AGRICULTURE TECHNOLOGY APRIL, 2013. CERTIFICATION This seminar report has been read and approved as meeting the requirement for the award of B.Tech in Crop, soil and pest management. ……………………………….. …………………………… Student’s supervisor Date Dr. Awodun -------------------------------------- …………………………… Head of Department Date TABLE OF CONTENT Certification Table of content PREFACE CHAPTER ONE 1.0 INTEGRATED NUTRIENT MANAGEMENT (I N M) 1.1 GOALS OF INTEGRATED NUTRIENT MANAGEMENT INM 1.2 PLANT NUTRIENT APPLICATION 1.3 ADVANTAGES OF INM 1.4 CONCEPTS 1.5 DETERMINANTS CHAPTER TWO 2.0 THE PLANT NUTRIENT BALANCE SYSTEM 2.1 COMPONENTS OF INTEGRATED NUTRIENT SYSTEM 2.1.1 ORGANIC MANURES 2.1.2 LEGUME PLANTING 2.1.3 BIO-FERTILIZERS 2.2 ESSENTIAL NUTRIENTS 2.3 SOIL CHARACTERISTICS 2.4 PLANT NEEDS CHAPTER THREE 3.0 NUTRIENT CYCLE 3.1 NUTRIENT CONSERVATION AND UPTAKE 3.2 CONCLUSION REFERENCE Preface Plants require from the soil macro nutrients like nitrogen, phosphorus and potassium in large amounts which normally the organic manures are...
Words: 3808 - Pages: 16
...ADVANCES IN AUTOMOBILES GOVERNMENT COLLEGE OF TECHNOLOGY COIMBATORE- 13. SUBMITTED BY B.SIVASUBRAMANIAN, K.VIGNESHWARAN, PRE FINAL YEAR, PRE FINAL YEAR, MECHANICAL ENGINEERING PRODUCTION ENGINEERING CONTACT ADDRESS: ROOM NO:45, VAGAI ILLAM, GCT, COIMBATORE-13 CONTACT NO: 9994978256 E-MAIL ID: vickydegr8@gmail.com ADVANCES IN AUTOMOBILES Abstract In this manuscript, research on hydrogen internal combustion engines is discussed. The objective of this paper is to provide a means of renewable hydrogen based fuel utilization. The development of a high efficiency, low emissions electrical generator will lead to establishing a path for renewable hydrogen based fuel utilization. A full-scale prototype will be produced in collaboration with commercial manufacturers. The electrical generator is based on developed internal combustion engine technology. It is able to operate on many hydrogen-containing fuels. The efficiency and emissions are comparable to fuel cells (50% fuel to electricity, ~ 0 NOx). This electrical generator is applicable to both stationary power and hybrid vehicles. It also allows specific markets to utilize hydrogen economically and painlessly. Introduction Two motivators for the use of hydrogen as an energy carrier...
Words: 3946 - Pages: 16
