leakage flux in various metal parts of a transformer constitute a significant part of the total losses. This component of total losses is called stray (additional) loss (Ps ). In addition‚ experts distinguish between the stray losses in the windings (winding eddy loss: eddy-current loss in conductors‚ and circulating-current loss in parallel strands) and outside the windings (stray 2 1 magnetic shield on the tank 2 yoke clamping plate 3 core The company Konèar Power Transformers
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In this lab‚ we will measure the heat of combustion‚ or calorimetry‚ of a candle and compare the found quantity with known values for other hydrocarbons. The calorific value is the total thermal energy released when a substance goes through complete combustion with oxygen. In order to achieve the purpose of this lab‚ we must first determine the mass of the tea candle. Then‚ we will determine our room temperature‚ measure about 100 mL of chilled water‚ and then pour the water into the given empty
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model is based upon an energy analysis that takes into account all the modes of energy loss (L) from the body‚ including: the convection and radiant heat loss from the outer surface of the clothing‚ the heat loss by water vapour diffusion through the skin‚ the heat loss by evaporation of sweat from the skin surface‚ the latent and dry respiration heat loss and the heat transfer from the skin to the outer surface of the clothing. The model assumes that the person is thermally at steady state with his
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12. Provide a description of a cell surface specialization. A cell surface specialization can be defined as an extension of the cell surface which performs a specific function for a larger organ or tissue. Examples of cell surface specializations include microvilli‚ cilia‚ stereocilia‚ and goblet cells. Microvilli can be described as tiny finger-like folds made of microfilaments in the cell membrane‚ and functions to increase surface area for absorption. Cilia are longer‚ more hair-like projections
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Heat and Energy Transfer Lab Materials needed: Part 1: bowls (not included in the lab kit; use cooking pots or plastic containers- something large enough to fit your hand) ice (not included in the lab kit) thermometers Part 2 test tubes – use three similar glasses or cups water various household materials for insulation stove or microwave to heat up water Part 1: Heat transfer and human sensation 1. Pour warm water in the bowl on the left‚ cold water in the bowl on the right‚
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4D: Process information from secondary sources to investigate the relationship between the volumes of gases involved in reactions involving a metal and relate this to an understanding of the mole. METALS Reacting Gas Volumes AIM: to investigate the relationship between the volumes of gases involved in a reaction. HYPOTHESIS: A new gas will form when two gases will react together. BACKGROUND INFORMATION: Nitric oxide and oxygen are both colourless gases which do not dissolve in water
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COST – volume –profit analysis LEARNING OBJECTIVES Students should be able to: 1. Explain the nature of CVP Analysis and name and illustrate planning and Decision-making situations in which it may be used‚ 2. Separate semi-variable (mixed) costs into their fixed and variable components. 3. Construct profit/volume charts given selling price‚ costs and volume data. 4. Construct a cost/volume/profit (CVP) model representing the data in a marginal
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Specific Heat Lab Objective: Find the specific heat of the unknown metal given using calorimetry. Background Theory: In every reaction‚ energy is transferred between a system and its environment. A system encompasses the substances that are involved in a reaction‚ and everything else in the universe other than the system is called the environment. The standard SI unit of energy is Joules (J). Temperature is the level of excitement of the atoms in a substance. In most cases‚ energy is
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rigid tank contains steam at 220°C. One third of the volume is in the liquid phase and the rest is in the vapor form. Determine (a) the pressure of the steam‚ (b) the quality of the saturated mixture‚ and (c) the density of the mixture. 3 2. A piston–cylinder device contains 0.85 kg of refrigerant-134a at 10°C. The piston that is free to move has a mass of 12 kg and a diameter of 25 cm. The local atmospheric pressure is 88 kPa. Now‚ heat is transferred to refrigerant-134a until the temperature
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confronting loss. Schwab‚ R. (1997). Parental mourning and children’s behavior. Journal of Counseling and Development‚ 75‚ 258-265. Spooren‚ D. J.‚ Henderick‚ H.‚ & Jannes‚ C. (2000-2001). Survey description of stress of parents bereaved from a child killed in a traffic accident. A retrospective study of a victim support group Wheeler‚ I. (2001). Parental bereavement: The crisis of meaning. Death Studies‚ 25‚ 51-66. Worden‚ J. W.‚ Davies‚ B.‚ & McCown‚ D. (1999). Comparing parent loss with sibling
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