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UNC - READ - 4658993
Special Golfing Rates for Conference Attendees To make your conference attendance more enjoyable, look at what the ProShop Manager has offered: Any conference attendee who stays at the hotel can get a discounted rate: For 18 h
Michigan State University - ME - 859
Nonlinear Systems and Control Lecture # 1 Introduction p. 1/1Nonlinear State Modelx1 = f1 (t, x1 , . . . , xn , u1 , . . . , up ) x2 = f2 (t, x1 , . . . , xn , u1 , . . . , up ) . . . . . . xn = fn (t, x1 , . . . , xn , u1 , . . . , up ) xi d
Purdue - ECON - 352
1.3 Measurement of the Economy at the Macro Level: Business Cycles (cont'd)References: Williamson, Chs. 3."All business cycles are alike": Comovement of cyclical componentsLook at behavior of cyclical component of a timeseries variable and assess
UNC - INLS - 258
Supporting GI standards with a model-driven architectureRoy GwnmoSINTEF Telecom and lnformatics Forskningsveien 1, Pb 124 Blindern N-031 4 Oslo, Norway T+47 22 06 74 32roy.gronmo@informatics.sintef.no ABSTRACTThis paper describes an approach to
Stevens - E - 344
Is the glass transition temperature for a piece of window glass above or below room temperature? Why?
Stevens - E - 344
The following data were obtained for 7740 glass:strain point annealing point softening point working point Temperature (K) 803 853 1103 1503 Viscosity (Pa-s) 1 E 13.5 1 E 12 1 E 6.65 1E3a. From the annealing and softening data calculate the activa
Stevens - E - 344
One can typically strengthen a thermoplastic polymer by (check all that apply and briefly justify your choices): _ _ _ _ _ decreasing Mw increasing the degree of branching adding bulky sidegroups increasing the ratio of crystalline to amorphous polym
Stevens - E - 344
Consider two different poly(styrene) solids at room temperature. One has an average degree of polymerization (DP) of 30. The other has an average DP of 1000. If identically shaped specimens of each polymer are loaded in tension, would you expect the
Stevens - E - 344
Suppose you are trying to select a material for use as the hood of a car. List the important properties required by this application and briefly indicate why a polymeric material would or would not be good for it.
Stevens - E - 344
Rubber cement is a typically a mixture of polyisoprene, or a similar rubber, with one or more small-molecule organic solvents such as heptane, a high vapor pressure liquid which is immiscible with water (see adjacent diagram). Suppose 200 l of a 1 wt
Stevens - E - 344
An interconnect is a small wire between two points on a semiconductor device. For a copper interconnect with a rectangular cross section which is 5 m wide, 1 m thick, and 1 mm long, estimate how many atoms are contained in the interconnect.
Stevens - E - 344
Wafers of silicon are used to make semiconductor devices. The density of silicon is 2.33 g/cm3 and its atomic weight is 28.086 g/mole. Estimate how many Si atoms are contained in a singlecrystal wafer 500 m thick and 15 cm in diameter. If this wafer
Stevens - E - 344
A table of bonding energies and melting temperatures characteristic of the various categories of bonding is given below. Construct a plot (use a computer) of bonding energy versus melting temperature drawing separate lines for each category. Summariz
Stevens - E - 344
Aluminum and silver have similar lattice parameters and crystal structures. From these, determine the density of each metal and explain why the two densities are so different despite the fact that the atomic sizes are so similar.
Stevens - E - 344
The atomic weight of vanadium (V) is 50.94 g/mole. Its density is =5.96 g/cm3. It has the BCC crystal structure. Calculate the atomic radius of vanadium. Confirm that this matches the value given in Appendix A.
Stevens - E - 344
In a simple cubic crystal, calculate the maximum radius of the sphere that can fit in the interstitial space in the center of the unit cell. Report this as a fraction or the radius of the atoms on the unit cell corners.
Stevens - E - 344
(a) On a sketch of a BCC unit cell indicate four close-packed directions; (b) Chromium has the BCC crystal structure. Briefly develop an argument why its electrical conductivity along the close-packed [111] direction might be different from that alon
Stevens - E - 344
A. Draw an FCC unit cell. B. the (121) plane. C. the [121] direction D. the (1,2,1) position.Using another diagram to identify:E. Suppose the material in question is FCC Ni with a lattice parameter of 0.3542 nm, estimate the atomic radius of a ni
Stevens - E - 344
At low temperature (< 1394 oC), pure iron has the body-centered-cubic crystal structure with atoms at each corner of the unit cell and one in the center of the cell. Its lattice parameter is 0.2866 nm. Sketch a BCC unit cell and then DERIVE the relat
Stevens - E - 344
Section S2: The Development of Microstructure # S2.1 S2.2 S2.3 S2.4 S2.4 S2.5 S2.6 S2.7 S2.8 S2.9 S2.10 S2.11 S2.12 Section heading Microscopies to image microstructure Diffusion Surface energy Nucleation and growth Phases and the P-T Phase diagram B
Stevens - E - 344
Chapter 4. Electrical Properties4.1. Ohms law.When an electrical potential difference (a voltage) V is applied to a solid, an electric current I flows through it. The applied voltage V required for a given current I is determined by the electric r
Stevens - E - 344
Fabrication of integrated circuits.The microprocessor chip of a modern computer contains about 500 million transistors on an area approximately 11 x 11 mm (about inch square). Moore's law is often cited in the development of computers. In 1965, Gor
Stevens - E - 344
Problems Magnetic Materials1. Suppose a design is needed for a solenoid that will develop a magnetic field of 10 kA/m when powered with 1A in vacuum. The solenoid dimensions are 0.3m in length and 2 cm in diameter. a. How many turns of wire are req
Stevens - E - 344
Chapter 6. Fracture, Fatigue and Creep.After studying this chapter you will be able to: Distinguish between ductile and brittle fracture. Describe a stress concentrator (also called stress raiser) and the danger it represents. Distinguish bet
Stevens - E - 344
Chapter M.Magnetic Materials. (Traugott Fischer, Stevens Tech.)APCs Magetism. After studying this chapter, the student will be able to: 1. For important classes of applications such as transformers, door catches and magnetic data storage, define
Stevens - E - 344
Problems Magnetic Materials1. Suppose a design is needed for a solenoid that will develop a magnetic field of 10 kA/m when powered with 1A in vacuum. The solenoid dimensions are 0.3m in length and 2 cm in diameter. a. How many turns of wire are req
Stevens - E - 344
Section 3. Structural Materials.Structural materials are the ones we use in the construction of buildings and machines where we rely on their response to applied forces. In buildings and machines, we rely on the ability of the material to resist def
Stevens - E - 344
Chapter 6. Fracture, Fatigue and Creep.After studying this chapter you will be able to: Distinguish between ductile and brittle fracture. Describe a stress concentrator (also called stress raiser) and the danger it represents. Distinguish bet
Stevens - E - 344
Chapter P. Phase diagrams.After studying this chapter, you will be able to P1. P2. P3. P4. Sketch the phase diagram of a solid solution and analyze this diagram: determine the composition and amount of each phase for a given overall composition and
Stevens - E - 344
Section S2: The Development of Microstructure # S2.1 S2.2 S2.3 S2.4 S2.4 S2.5 S2.6 S2.7 S2.8 S2.9 S2.10 S2.11 S2.12 Section heading Microscopies to image microstructure Diffusion Surface energy Nucleation and growth Phases and the P-T Phase diagram B
Stevens - E - 344
This test consists of 8 pages. There are 5 problems. Questions 6-14 are multiple choice questions. Some constants are given on page 7, and a periodic table is given on page 8.E-344 Fall 2008 Test 2 6 November, 2008 Honor Pledge:Name: __ ID#: __
Stevens - E - 344
Suppose a thin film (50 nm thick) of nickel is deposited on the end of a very long copper bar. If this bar is heated to 0.8 of the melting temperature of Cu, draw schematic plots of the Ni concentration as a function of distance from the end of the b
Stevens - E - 344
Consider the diffusion of aluminum into an initially pure wafer of silicon 1 mm thick. An Alcontaining gaseous atmosphere in a furnace fixes the surface concentration of Al on the wafer at 1018 atoms/cm3. The furnace is held at 1100oC where the Al di
Stevens - E - 344
The diffusivity of Boron in Silicon at 1200oC is 7x10-13 cm2/sec. At 1000oC it is 2x10-15 cm2/sec. (a) Determine the diffusivity of B in Si at T=1150oC. (b) Is B a p-type dopant or an n-type dopant in Si? () What is the majority carrier in pure Si be
Stevens - E - 344
The diffusivity of Arsenic (As) in Silicon (Si) at T=1200oC is 5x10-13 cm2/sec. At T=1000oC it is 3x10-15 cm2/sec. (a) Determine the diffusivity of As in Si at T=1100oC. (b) Is As a p-type dopant or an n-type dopant in Si? () What is the majority car
Stevens - E - 344
The diffusivity of C in BCC Fe is 2.45x10-12 m2/sec at 500 oC and 3.16x10-11m2/sec at 700 oC. Using these data, develop an Arrhenius-type expression ( D(T) = Doexp[-Q/kBT] ) describing the temperature dependence of this diffusivity. Using the express
Stevens - E - 344
This test consists of 8 pages. There are 5 problems. Questions 6-14 are multiple choice questions. Some constants are given on page 7, and a periodic table is given on page 8.E-344 Fall 2008 Test 2 6 November, 2008 Honor Pledge:Name: __ ID#: __
Stevens - E - 344
A plain-carbon steel has a yield strength of 35 ksi, a tensile strength of 52 ksi and a modulus of 29,000 ksi. Suppose a 3 inch diameter rod of this steel with a length of 10 feet is loaded in tension with 10,000 pounds of force. a. Determine the str
Stevens - E - 344
Would you expect the indentation due to a 10 mm diameter ball under a 3000 g load to be larger for SAE 1340 steel or for 18-8 stainless steel? Briefly justify your answer. No calculations are needed.
Stevens - E - 344
The yield strengths and fracture toughness values characteristic of several engineering alloys are given in the table below. Consider a structural application where a material must support a tensile stress of 730 MPa. If non-destructive testing equip
Stevens - E - 344
Core 6.8 Using the diagram below, identify which material has: a. b. c. d. e. the highest yield stress the highest tensile stress the lowest ductility the highest ductility the highest modulusa) b) c) d) e)3 3 3 1 2 and 3
Stevens - E - 344
A) R = 0 exp ER k bT E ln R = ln 0 + R k T b E 1 1 ln 100 ln 10 = R k b 529 556 4.605 2.303 = E R = 2.16eVB) 5 1 9.18 10. eV K 8.63 10 5 K ER2.16eV = ln 0 5 eV 529 K 8.63 10 K 0 = 2.83 10 19 hr ln 100 chec
Stevens - E - 344
This is an example of low-cycle fatigue. The plaintiff did, in fact, plastically deform the bar. It bent occasionally when he used it. Then he plastically deformed it more each time he bent it back. During each cycle of bending back and forth, the ba
Stevens - E - 344
This test consists of 8 pages. There are 5 problems. Questions 6-14 are multiple choice questions. Some constants are given on page 7, and a periodic table is given on page 8.E-344 Fall 2008 Test 1 30 September, 2008 Honor Pledge:Name: __ ID#: _
Stevens - E - 344
Fabrication of integrated circuits.The microprocessor chip of a modern computer contains about 500 million transistors on an area approximately 11 x 11 mm (about inch square). Moore's law is often cited in the development of computers. In 1965, Gor
Stevens - E - 344
Chapter 4. Electrical Properties4.1. Ohms law.When an electrical potential difference (a voltage) V is applied to a solid, an electric current I flows through it. The applied voltage V required for a given current I is determined by the electric r
Stevens - E - 344
E-344 Fall 2006 Quiz 1 19 October, 2006 Honor Pledge:Name: _ ID#: __ Use the backs of the pages if you need more space. Clearly label any work there with an appropriate question number. 1. (15 points) - Potassium (K) has an atomic number of 19. -
LSU - EE - 4250
DISCRETE SEMICONDUCTORSDATA SHEETM3D1252N2222; 2N2222A NPN switching transistorsProduct specication Supersedes data of September 1994 File under Discrete Semiconductors, SC04 1997 May 29Philips SemiconductorsProduct specicationNPN switch
LSU - D - 003
GradesGENERAL POLICYPS-44Grading policies, as aspects of the total educational policy of the University, are determined by the faculty subject to the authority of the Board of Supervisors. The grading system is described in detail in the curren
Laurentian - ED - 3602
-1 -Education 3602 Maurice HollingsworthEDUCATION 3602 - COURSE OUTLINE Psychology & Education of Atypical Students in Regular Classrooms Spring 2008, Group E (Tues/Thurs) Room L1168 Instructor: Office: Office Hours: Admin. Assistant: DESCRIPTION
Eastern Oregon - CS - 162
Chapter 1 Introduction to Computers, Programs, and JavaLiang, Introduction to Java Programming, Seventh Edition, (c) 2009 Pearson Education, Inc. All rights reserved. 01360126711Objectives3 3 3 3 3 3 3 3 3To review computer basics, programs,
University of Texas - SW - 388
SW318 Social Work Statistics Slide 1Logistic Regression and Odds RatiosExample of Odds Ratio Using Relationship between Death Penalty and RaceSW318 Social Work Statistics Slide 2Probability and OddsWe begin with a frequency distributio
Wisc La Crosse - ECO - 110
UMarket-Based Approaches to Environmental PolicyA "REFRESHER" COURSEPaul R. Portneypon hearing the term "market-based approaches to (or economic incentives for) environmental protection," some people assume this means letting unfettered competit
Wellesley - CS - 315
11/7/08Clustering Supervisedvs.UnsupervisedLearning ExamplesofclusteringinWebIR Characteris?csofclustering Clusteringalgorithms ClusterLabelingSupervised vs. Unsupervised Learning SupervisedLearningGoal:Aprogramthatperformsataskasgoodashu
UCSB - EEMB - 243
froM th e gue st eD Ito r sThis article has been published in Oceanography, Volume 20, Number 2, a quarterly journal of The oceanography society. copyright 2007 by The oceanography society. all rights reserved. Permission is granted to copy this ar
UCSB - EEMB - 243
This article has been published in Oceanography, Volume 20, Number 2, a quarterly journal of The Oceanography Society. Copyright 2007 by The Oceanography Society. all rights reserved. Permission is granted to copy this article for use in teaching and
UCSB - EEMB - 243
This article has been published in Oceanography, Volume 20, Number 2, a quarterly journal of The Oceanography society. Copyright 2007 by The Oceanography society. All rights reserved. Permission is granted to copy this article for use in teaching and
UCSB - EEMB - 243
NATURE|Vol 437|15 September 2005|doi:10.1038/nature04158INSIGHT REVIEWMarine microorganisms and global nutrient cyclesKevin R. Arrigo1 The way that nutrients cycle through atmospheric, terrestrial, oceanic and associated biotic reservoirs can co
UCSB - EEMB - 243
1979 Nature Publishing Group 1979 Nature Publishing Group