Xem 1-20 trên 51 kết quả University of michigan
  • THE PRINCIPAL differences between the work at The University of Michigan and other work in machine translation is in the emphasis placed on the problem of multiple meaning and the approach to that problem. Our approach consists in translating small groups of words, listing in the dictionary multiple meanings under each word in the group, and finding algorithms which make it possible to choose the proper set of meanings for the group.

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  • Among the Latin races, the French race differs essentially in one characteristic which has been the key to the success of French women—namely, the social instinct. The whole French nation has always lived for the present time, in actuality, deriving from life more of what may be called social pleasure than any other nation. It has been a universal characteristic among French people since the sixteenth century to love to please, to make themselves agreeable, to bring joy and happiness to others, and to be loved and admired as well. ...

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  • THE UNIVERSITY OF MICHIGAN undertook research, late in 1955, in the analysis of language structure for mechanical translation. Emphasis was placed on the use of the contextual structure of the sentence as a means of reducing ambiguity and on the formulation of a set of operative rules which an electronic computer could use for automatically translating Russian texts into English.

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  • CHAPTER 21 THREADED FASTENERS Joseph E. Shigley Professor Emeritus The University of Michigan Ann Arbor, Michigan 21.1 SCREW THREADS/21.1 21.2 BOLTS/21.5 21.3 SCREWS/21.11 21.4 NUTS/21.28 21.5 TAPPING SCREWS / 21.35 REFERENCE/21.38 This chapter is intended to cover the description, uses, materials, and sizes of threaded fasteners. The amount of data available concerning this subject is extremely large, so the intent here is to provide the information necessary for the usual machine-design task of selecting such fasteners.

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  • CHAPTER 7 SOLID MATERIALS Joseph Datsko Professor Emeritus of Mechanical Engineering The University of Michigan Ann Arbor, Michigan 7.1 STRUCTURE OF SOLIDS / 7.1 7.2 ATOMIC BONDING FORCES / 7.2 7.3 ATOMIC STRUCTURES / 7.4 7.4 CRYSTAL IMPERFECTIONS / 7.11 7.5 SLIP IN CRYSTALLINE SOLIDS / 7.15 7.6 MECHANICAL STRENGTH / 7.17 7.7 MECHANICAL PROPERTIES AND TESTS / 7.20 7.8 HARDNESS / 7.21 7.9 THE TENSILE TEST / 7.25 7.10 TENSILE PROPERTIES / 7.32 7.11 STRENGTH, STRESS, AND STRAIN RELATIONS / 7.36 7.12 IMPACT STRENGTH / 7.42 7.13 CREEP STRENGTH / 7.43 7.14 MECHANICAL-PROPERTY DATA / 7.46 7.

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  • Weigh-in-Motion Measurement of Trucks on Bridges 55.1 55.2 Introduction Weigh-in-Motion Truck Weight Measurement Weigh-in-Motion Equipment • Testing Procedure • Selection of Bridges for Testing • Results of WIM Tests 55 55.3 Andrzej S. Nowak University of Michigan Fatigue Load Measurement Testing Equipment • Rainflow Method of Cycle Counting • Results of Strain Spectra Testing Sangjin Kim Kyungpook National University, Korea 55.4 55.5 Dynamic Load Measurement Introduction • Measured Dynamic Load Summary 55.

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  • CHAPTER 12 STRENGTH UNDER STATIC CIRCUMSTANCES Charles R. Mischke, Ph.D., RE. Professor Emeritus of Mechanical Engineering Iowa State University Ames, Iowa Joseph E. Shigley Professor Emeritus The University of Michigan Ann Arbor, Michigan 12.1 PERMISSIBLE STRESSES AND STRAINS / 12.2 12.2 THEORY OF STATIC FAILURE / 12.3 12.3 STRESS CONCENTRATION / 12.7 12.4 FRACTURE MECHANICS / 12.11 12.5 NONFERROUS METALS / 12.17 12.6 STOCHASTIC CONSIDERATIONS / 12.20 REFERENCES / 12.

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  • CHAPTER 19 LIMITS AND FITS Joseph E. Shigley Professor Emeritus The University of Michigan Ann Arbor, Michigan Charles R. Mischke, Ph.D., P.E. Professor Emeritus of Mechanical Engineering Iowa State University Ames, Iowa 19.1 INTRODUCTION / 19.2 19.2 METRIC STANDARDS / 19.2 19.3 U.S. STANDARD—INCH UNITS / 19.9 19.4 INTERFERENCE-FIT STRESSES / 19.9 19.5 ABSOLUTE TOLERANCES / 19.13 19.6 STATISTICAL TOLERANCES /19.16 REFERENCES / 19.

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  • CHAPTER 33 SPUR GEARS Joseph E. Shigley Professor Emeritus The University of Michigan Ann Arbor, Michigan 33.1 33.2 33.3 33.4 DEFINITIONS / 33.1 TOOTH DIMENSIONS AND STANDARDS / 33.4 FORCE ANALYSIS / 33.5 FUNDAMENTAL AGMA RATING FORMULAS / 33.6 33.7 DEFINITIONS Spur gears are used to transmit rotary motion between parallel shafts. They are cylindrical, and the teeth are straight and parallel to the axis of rotation. The pinion is the smaller of two mating gears; the larger is called the gear or the wheel. The pitch circle, B in Fig. 33.

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  • CHAPTER 6 WEAR Kenneth C. Ludema Professor of Mechanical Engineering Department of Mechanical Engineering and Applied Mechanics The University of Michigan Ann Arbor, Michigan 6.1 GENERAL PRINCIPLES IN DESIGN FOR WEAR RESISTANCE / 6.1 6.2 STEPS IN DESIGN FOR WEAR LIFE WITHOUT SELECTING MATERIALS / 6.4 6.3 WEAR EQUATIONS / 6.6 6.4 STEPS IN SELECTING MATERIALS FOR WEAR RESISTANCE / 6.7 6.5 MATERIAL-SELECTION PROCEDURE / 6.14 REFERENCES / 6.18 BIBLIOGRAPHY / 6.18 There is no shorthand method of designing machinery for a specified wear life.

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  • CHAPTER 22 UNTHREADED FASTENERS Joseph E. Shigley Professor Emeritus The University of Michigan Ann Arbor, Michigan 22.1 RIVETS/22.1 22.2 PINS / 22.8 22.3 EYELETS AND GROMMETS / 22.10 22.4 RETAINING RINGS /22.16 22.5 KEYS / 22.24 22.6 WASHERS / 22.26 REFERENCES / 22.29 22.1 RIVETS A rivet is a fastener that has a head and a shank and is made of a deformable material. It is used to join several parts by placing the shank into holes through the several parts and creating another head by upsetting or deforming the projecting shank.

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  • CHAPTER 48 SECTIONS AND SHAPESTABULAR DATA Joseph E. Shigley Professor Emeritus The University of Michigan Ann Arbor, Michigan 48.1 CENTROIDS AND CENTER OF GRAVITY / 48.1 48.2 SECOND MOMENTS OF AREAS /48.11 48.3 PREFERRED NUMBERS AND SIZES / 48.14 48.4 SIZES AND TOLERANCES OF STEEL SHEETS AND BARS /48.17 48.5 WIRE AND SHEET METAL / 48.37 48.6 STRUCTURAL SHAPES / 48.37 REFERENCES / 48.37 48.1 CENTROIDSANDCENTEROFGRAVITY When forces are distributed over a line, an area, or a volume, it is often necessary to determine where the resultant force of such a system acts.

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  • Prepared by the University of Michigan For the Oak Ridge National Lab (ORNL) D&D Program and the United States Department of Energy's Robotics Technology Development Program Within the Environmental Restoration, Decontamination and Dismantlement Project

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  • CHAPTER 16 CURVED BEAMS AND RINGS Joseph E. Shigley Professor Emeritus The University of Michigan Ann Arbor, Michigan 16.1 BENDING IN THE PLANE OF CURVATURE / 16.2 16.2 CASTIGLIANO'S THEOREM / 16.2 16.3 RING SEGMENTS WITH ONE SUPPORT / 16.3 16.4 RINGS WITH SIMPLE SUPPORTS /16.10 16.5 RING SEGMENTS WITH FIXED ENDS / 16.15 REFERENCES/16.22 NOTATION A B C E e F G / K M P Q R r r T U V W w X Area, or a constant Constant Constant Modulus of elasticity Eccentricity Force Modulus of rigidity Second moment of area (Table 48.1) Shape constant (Table 49.1), or second polar...

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  • CHAPTER 49 STRESS Joseph E. Shigley Professor Emeritus The University of Michigan Ann Arbor, Michigan 49.1 DEFINITIONS AND NOTATION / 49.1 49.2 TRIAXIAL STRESS / 49.3 49.3 STRESS-STRAIN RELATIONS / 49.4 49.4 FLEXURE/49.10 49.5 STRESSES DUE TO TEMPERATURE /49.14 49.6 CONTACT STRESSES/49.17 REFERENCES / 49.22 49.1 DEFINITIONS AND NOTATION The general two-dimensional stress element in Fig. 49.1« shows two normal stresses Cx and Gy, both positive, and two shear stresses ixy and iyx, positive also. The element is in static equilibrium, and hence ixy = iyx.

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  • CHAPTER 50 DEFLECTION Joseph E. Shigley Professor Emeritus The University of Michigan Ann Arbor, Michigan Charles R. Mischke, Ph.D., RE. Professor Emeritus of Mechanical Engineering Iowa State University Ames, Iowa 50.1 50.2 50.3 50.4 50.5 STIFFNESS OR SPRING RATE / 50.2 DEFLECTION DUE TO BENDING / 50.3 PROPERTIES OF BEAMS / 50.3 COMPUTER ANALYSIS / 50.3 ANALYSIS OF FRAMES /50.

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  • The potential for eGovernment in developing countries, however, remains largely unexploited, even though. ICT is believed to offer considerable potential for the sustainable development of eGovernment. Different human , organizational and technological factors, issues and problems pertain in these countries, requiring focused studies and appropriate approaches. ICT, in general, is referred to as an “enabler”, but on the other hand it should also be regarded as a challenge and a peril in itself.

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  • Journal of Hematology & Oncology BioMed Central Research Open Access Radiation produces differential changes in cytokine profiles in radiation lung fibrosis sensitive and resistant mice Xiaoping Ao1, Lujun Zhao1, Mary A Davis1, David M Lubman2, Theodore S Lawrence1 and Feng-Ming Kong*1 Address: 1Department of Radiation Oncology, University of Michigan, Ann Arbor, MI 48109, USA and 2Department of Surgery, University of Michigan, Ann Arbor, MI 48109, USA Email: Xiaoping Ao - xpao@umich.edu; Lujun Zhao - lujunzhao@yahoo.com; Mary A Davis - Madrad@umich.edu; David M Lubman - dmlubman@umich.

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  • This feature explores the operation of individual markets. Patterns of behavior in markets for specififi c goods and services offer lessons about the determinants and effects of supply and demand, market structure, strategic behavior, and government regulation. Suggestions for future columns and comments on past ones should be sent to James R. Hines Jr., c/o Journal of Economic Perspectives, Department of Economics, University of Michigan, 611 Tappan St., Ann Arbor, Michigan 48109-1220.

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  • This volume is produced from digital images created through the University of Michigan University Library’s large-scale digitization efforts. The Library seeks to preserve the intellectual content of items in a manner that facilitates and promotes a variety of uses. The digital reformatting process results in an electronic version of the

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