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The optimum conditions for extraction chromatography using 2ethyl-hexyl 2-ethylhexylphosphonate resin to separate thulium, yetterbium and luticium were studied. According to the proposed procedure, several grams of yetterbium oxide （purity = 99.95%） and luticium oxide （purity = 99.90%） were separated from the mixed heavy rare earth oxides on laboratory scale. Their relatively high recoveries （99% and 95% for Yb2O3 and Lu2O3 respectively） may be satisfactory

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Equilibrium between slag and molten iron at 1600℃ was investigated for the direct alloying of steel with Nb2O6-bearing slag. The activity of niobium oxide in the slag was measured. The αNb2O5 is in the range of 10-2-10-4. TheδNb2O5 is ranged in 100-10-2.Niobium partition decreases with the increase of[Si]% and CaO/SiO2. When α[0] and ΣFeO decrease, niobium partition decreases too. The δNb2o5 and the ratio of γsiO2 to γNb2O5 decrease with the incre-ase of slag basicity. The suitable thermodynamic conditions in direct alloying of steel with Nb2O5-bearing slag have been found

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Chapter 2 Aerodynamics: Some Fundamental Principles and Equations There is so great a difference between a fluid and a collection of solid particles that the laws of pressure and of equilibrium of fluids are very different from the laws of the pressure and equilibrium of solids Jean Le Rond d' Alembert, 1768

1 Introduction 2 Deterministic Dynamic Programming and Viscosity Solutions 2.1 Introduction 2.2 Value Functions are Viscosity Solutions 2.3 Comparison and Uniqueness 3 Stochastic Control 3.1 Some Probability Theory 3.2 Controlled State Space Models 3.3 Filtering 3.4 Dynamic Programming - Case I : Complete State Information 3.5 Dynamic Programming - Case II : Partial State Information 3.6 Two Continuous Time Problems 4 Robust Control 4.1 Introduction and Background 4.2 The Standard Problem of H∞ Control 4.3 The Solution for Linear Systems 4.4 Risk-Sensitive Stochastic Control and Robustness 5 Optimal Feedback Control of Quantum Systems 5.1 Preliminaries 5.2 The Feedback Control Problem 5.3 Conditional Dynamics 5.4 Optimal Control 5.5 Appendix: Formulas for the Two-State System with Feedback Example 6 Optimal Risk-Sensitive Feedback Control of Quantum Systems 6.1 System Model

Using sand moulds for step-shape casting tests and different silicon percentage of nodular cast iron it was possible to separate structural variations produced during freezing from those occurring at Ac1 transformation temperature. The results show that an increase in silicon content leading to different variation in the matrix structure> leads to a changing mechanical properties of nodular cast irons. Tensile strength and elongation of obtained as-cast nodular cast iron with the composition of 3.9%C, 3.2%Si, 0.5%Mn are maximum of about 524.5N/mm2 and 19.8% accordingly. In the same nodular cast iron, but only with 0.1% Mn the silicon addition first increases after decreases elongation, impact toughness and hardness. But tensile strength changes to the opposite side

Using the Road Map Series for Successful Review . 1. Cell Physiology. I. Plasma Membrane II. Ion Channels III. Cell Signaling IV. Membrane Potential V. Structure of Skeletal Muscle VI. Neuromuscular and Synaptic Transmission VII. Smooth Muscle Clinical Problems Answers 2. Cardiovascular Physiology I. General Principles II. Hemodynamics III. Electrophysiology IV. Cardiac Muscle and Cardiac Output V. Cardiac Cycle with Pressures and ECG VI. Regulation of Arterial Pressure VII. Control Mechanisms and Special Circulations VIII. Integrative Function Clinical Problems Answers 3. Respiratory Physiology. I. Lung Volumes and Capacities II. Muscles of Breathing III. Lung Compliance IV. Components of Lung Recoil V. Airway Resistance

• Define cloud services, including types and service models • How to define cloud service requirements and identify appropriate services • Survey cloud-based security capabilities and offerings • Discuss cloud storage encryption considerations • Protection of cloud-based applications and infrastructures • Explain the major federated identity management standards and how they differ