Chapter 12 Data Envelopment Analysis Data Envelopment Analysis DEA is an increasingly popular management tool. This write-up is an introduction to Data Envelopment Analysis DEA for people unfamiliar with the technique. For a more in-depth discussion of DEA‚ the interested reader is referred to Seiford and Thrall 1990 or the seminal work by Charnes‚ Cooper‚ and Rhodes 1978 . DEA is commonly used to evaluate the e ciency of a number of producers. A typical statistical approach is characterized
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Coefficient of Linear Expansion Introduction With few exceptions materials expand somewhat when heated through a temperature range that does not produce a change in phase (i.e. melting‚ freezing‚ boiling etc.). The added heat increases the average amplitude of vibration of the atoms in the material‚ which increases the average separation between the atoms. Although this effect is small‚ it is very important in any application that involves using different materials in an environment where they
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Sir Arthur Evans Essay How has the work of Sir Arthur Evans contributed to our understanding of the past? The work of Arthur Evans in exploring Ancient Minoan civilisation on the island of Crete has significantly contributed to our understanding of the past. In examining his work‚ three observations may be made about Evans archaeological examinations. The interpretation and reconstruction of a site should not be influenced by archaeologist’s preconceived ideas‚ in investigating the past it is important
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ME 2307 – DYNAMICS LABORATORY Class : V Semester Mechanical Sections : A & B LIST OF EXPERIMENTS 1. Free Transverse Vibration – I – Determination of Natural Frequency 2. Cam Analysis – Cam Profile and Jump-speed Characteristics 3. Free Transverse Vibration – II – Determination of Natural Frequency 4. Free Vibration of Spring Mass System – Determination of Natural Frequency 5. Compound Pendulum – Determination of Radius of Gyration and Moment of Inertia 6. Bifilar Suspension – Determination
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RHA; same trend for LL and PL. The Linear Shrinkage (LS) decreases as the RHA content increases‚ enhancing the volume stability of the soil. The results obtained from the researches’ work are shown below in Figure 2.7. Figure 2.7: Variation of OMC‚ LL‚ PL‚ PI‚ and LS with RHA content Roy (2014) conducted a research on the soil stabilization using RHA and cement‚ using the soil sample from Burdwan‚ India by disturbed sampling method. The CBR value obtained from the experiment is to evaluate the
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a vibratory system the spring‚ the mass‚ and the damper behave linearly‚ the resulting vibration is known as linear vibration. If‚ however‚ any of the basic components behave nonlinearly‚ the vibration is called nonlinear vibration. The differential equations that govern the behavior of linear and nonlinear vibratory systems are linear and nonlinear‚ respectively. If the vibration is linear‚ the principle of superposition holds‚ and the mathematical techniques of analysis are well developed. For nonlinear
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Vibration- Rotation Spectroscopy of HCl and DCl Purpose: To determine the fundamental vibration frequency and bond length for H35Cl‚ H37Cl‚ D35Cl‚ and D37Cl and to compare the isotope effects to theoretically predicted values. Introduction Vibration spectroscopy is one of the most important tools for the accurate determination of molecular structure. Vibration spectroscopy also plays an important role in environmental chemistry. For example‚ the albedo of the earth’s atmosphere is controlled by the
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RESOLUTION A.823 (19) -adopted on 23 November 1995 PERFORMANCE STANDARDS FOR AUTOMATIC RADAR PLOTTING AIDS (ARPAs) THE ASSEMBLY‚ RECALLING Article 15(j) of the Convention on the International Maritime Organization concerning the functions of the Assembly in relation to regulations and guidelines concerning maritime safety‚ RECALLING ALSO the provisions of regulation V/12 of the International Convention for the Safety of Life at Sea (SOLAS)‚ 1974‚ RECALLING FURTHER resolution A.422
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EXERCISE 8 - Rotational Dynamics‚ Equilibrium of rigid body 1. If the torque required to loosen a nut that is holding a flat tire in place on a car has a magnitude of 40.0 N m‚ what minimum force must be exerted by the mechanic at the end of a 30.0-cm lug wrench to accomplish the task? 133 N 2. A steel band exerts a horizontal force of 80.0 N on a tooth at point B in Figure 1. What is the torque on the root of the tooth about point A? 0.64 Nm 3. Calculate the net torque (magnitude and
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Analysis Torque is the ability of force to change the rotational motion of a particle. It is also called the moment of force. It is always specified with regard to the axis of rotation. On the experiment the axis of rotation serves as the model balance. This means that as much as torque is directly proportional with the force applied on a particle‚ it is also dependent on the perpendicular distance of the applied force to the axis of rotation. On the first activity we need to determine
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