Page 1 of 4 Expansion Devices I. Introduction Expansion devices are basic components of a refrigeration system which carry out two major purposes: (1) the pressure reduction from the condenser to evaporator pressure and (2) the regulation of refrigerant flow into the evaporator. These expansion devices can be generally classified into two types which are namely the fixed opening type (flow area is fixed) and the variable opening type (flow area changes correspondingly with a change in mass
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energy from the high temperature region to the low temperature end. THERMAL EXPANSION (See chp. 16 in Physics Text). Three states of matter are solids liquids and gasses. http://www.chem.purdue.edu/gchelp/liquids/character.html Draw diagrams to show how the molecules are arranged in all three states below. Experiments to illustrate expansion of solids‚ liquids and gasses. (page 103) 1. Expansion of Solids (fig. 16.7) • Bimetallic strip – consists of two different metals
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Influencing Group Communication Cindy Cross BCOM/230 April 24‚ 2011 Fran Carter Influencing Group Communication In any organization‚ a person can see the five bases of power at work‚ some powers more than others depending on the individual in charge and the circumstances. The power used by such individuals can affect communication within the organization‚ whether positive or negative. There are five bases of power‚ being coercive‚ reward‚ legitimate‚ expert and personal. Coercive power
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MULTILEVEL INVESTIGATION OF FACTORS INFLUENCING EMPLOYEE SERVICE PERFORMANCE AND CUSTOMER OUTCOMES HUI LIAO Rutgers‚ the State University of New Jersey AICHIA CHUANG National Taiwan University of Science and Technology Previous work on service performance has focused on either organization- or individual-level analysis. This multilevel study of 257 employees‚ 44 managers‚ and 1‚993 customers from 25 restaurants demonstrated that both individual- and store-level factors were significantly associated
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experienced a marked change in national unity. Territorial expansion had a large effect on national unity in this period. Territorial Expansion was among the great subject of debates during the period 1800-1855. These debates discuss arguments in favor or non-favor of U.S. Expansion. The arguments express concerns‚ fears and advantages the nation will experience by the consequences of expansion. Documents A‚ C‚ D‚ H and I are against territorial expansion. Between 1800 and 1823 the Louisiana Purchase and
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The westward expansion‚ which started in the 1820s‚ was one of the biggest steps forward our country has ever taken. It nearly tripled the size of our country and increased the population by monstrous amounts. It also improved the economy greatly though agricultural means‚ prompted political leaders to sent people to explore (Lewis and Clark)‚ started a civil war‚ motivated huge amounts of people to move west‚ and almost destroyed our country. The expansion was magnified greatly by the
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Influencing Group Communication The five bases of power are coercive power‚ reward power‚ legitimate power‚ expert power‚ and referent power. Three of these powers are formal powers and two of these powers are personal powers. The three types of formal power are coercive‚ reward‚ and legitimate power. Coercive power is dependent upon fear of negative results. Reward power is dependent upon positive rewards or benefits. Legitimate power is dependent upon a person’s structural position or ranking
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determine the linear expansion of the rod. II. Apparatus: Linear expansion apparatus‚ Brass & Aluminium rods‚ Thermometer‚ Electric heater‚ Steel tape‚ Boiler‚ Rubber hose‚ Extension cord‚ Screw driver. III. Sketch: IV. Data and Results Item Used | Symbol | Unit | Sample Used | | | | Brass | Aluminium | Initial length of Rod | LO | cm | 61cm | 60.8cm | Initial temperature of the Rod | TL | °C | 30°C | 30°C | Final temperature of Rod | TF | °C | 99°C | 99°C | Expansion of the Rod | ∆L
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THEOREM OBJECTIVES Recognize patterns in binomial expansions. Evaluate a binomial coefficient. Expand a binomial raised to a power. Find a particular term in a binomial expansion Understand the principle of mathematical induction. Prove statements using mathematical induction. Definition: BINOMIAL THEOREM Patterns in Binomial Expansions A number of patterns‚ as follows‚ begin to appear when we write the binomial expansion of a b n‚ where n is a positive integer. a
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Territorial Expansion Between 1800 and 1850‚ the United States was a nation extending in all possible ways. America experienced a amount change in national unity. Territorial expansion destroyed national unity. Between 1819 and 1824 is when the unified nation of America began to divide and depart from one another. Triggered by the concept of Manifest Destiny‚ people believed that America should extend from “sea to shining sea”. It was the issues of the expansion of slavery into the new territories
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