earth the moon and the sun
quiz
Ngày tải lên :
05/07/2015, 03:00
... the moon to appear to change shape over a month? The lit part of the moon we see from Earth appears to change shape because of the positions of the Earth, the moon, and the sun On a bright sunny ... you use phrases like, “to the left” or “one meter in front of”? What is the Earth s main source of light and heat? The Sun! The Sun provides all of the heat and light the earth needs in order to ... Does the moon produce heat and light? No, the moon only reflects light from the Sun so that we see it from Earth Describe where your teacher is in comparison to the chalkboard Did...
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Heat Analysis and Thermodynamic Effects Part 1 ppt
Ngày tải lên :
19/06/2014, 10:20
... Allah, the Creator and the Sustainer of the world, the Most Beneficent, Most Benevolent, Most Merciful, and Master of the Day of Judgment He is X Preface Omnipresent and Omnipotent He is the King ... work-source at the cost of work W During this stage couplings with the thermal baths is neglected (thermal isolation) In the second step the systems H and C not interact with each other and freely ... which they are the author, and to make other personal use of the work Any republication, referencing or personal use of the work must explicitly identify the original source Statements and opinions...
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Heat Analysis and Thermodynamic Effects Part 2 doc
Ngày tải lên :
19/06/2014, 10:20
... through the different thermal properties of the two imaginary zones (saturated and dry zones) By doing so, we guaranteed the harmony among the two experiments and also ensured separating the thermodynamic ... profile and the profiles with groundwater at 1, and m depth behaved similarly but had smaller values of the peaks and roughly one month of delay in their occurrence between one and the next Quite the ... (equation (7)) and the outgoing long wave radiation The latter affects the net radiation available for the three fluxes, hence it affects again sensible and latent heat fluxes On the other hand, ground...
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Heat Analysis and Thermodynamic Effects Part 3 docx
Ngày tải lên :
19/06/2014, 10:20
... caused by the use of the formulas beyond the applicable range, βL>π( L 2.5 Rt ) The comparison of the proposed method and the conventional method is shown in Sn-chart, Fig.14, and the above ... occurs near the location of Shm,max to the case that Sn,max occurs near the location of Szb,max The comparisons of FEM analyses, the proposed charts and the conventional method, Eq.(38) and (39), ... of thermal stress induced by thermal stratification, this study have performed the theoretical analyses and FEM ones on steady-state temperature and thermal stress of cylindrical vessels, and...
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Heat Analysis and Thermodynamic Effects Part 4 docx
Ngày tải lên :
19/06/2014, 10:20
... (Th-Tc) and Th and Tc are the hot and cold sides temperatures V is the applied voltage and is the sum of the electric and the Joule voltage V T IR (4) The coefficient of performance of the ... the efficiency and the power output, as well as the operating design that maximizes the efficiency, the optimum load and the load resistance that maximizes the power output The last part of the ... the physical phenomena, which is the Seebeck and Peltier effects The thirth part presents the physical configurations of the systems and the next part presents the mathematical modelling of the...
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Heat Analysis and Thermodynamic Effects Part 5 doc
Ngày tải lên :
19/06/2014, 10:20
... temperature of the ith subsystem Qij : the heat flux between the ith and the jth subsystem Q(Ti, ui): the heat flux between the ith subsystem and the transformer P: the transformer power The optimization ... generated inside the refrigerated space The factors UAH, UAL and UA0 represent the unknown overall thermal conductances of the heat exchangers The overall thermal conductance of the walls of the refrigerated ... increases with the thermal conductance increase reaching a maximum value and then it decreases with the increase of the COP The decrease of Qe is more promptly for great Tsc values Furthermore, the increase...
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Heat Analysis and Thermodynamic Effects Part 6 pot
Ngày tải lên :
19/06/2014, 10:20
... inlet and outlet temperatures) and area and pumping cost data the proposed methodology allows to design the shell and tube heat exchanger and calculates the mechanical variables for the tube and ... Position in the TEMA table (that automatically defines the shell diameter, the tube bundle diameter, the internal and the external tube diameter, the tube arrangement, the tube pitch, the number ... fixed the cold fluid allocation on the tube-side The tube outlet and inlet diameters and the tube pitch are fixed Table 12 presents the heat exchanger configuration of Shenoy (1995) and the designed...
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Heat Analysis and Thermodynamic Effects Part 7 pdf
Ngày tải lên :
19/06/2014, 10:20
... reduce the flow rates within the latter The dominant effect of the relationship between the flow rates in the spaces between the fins and those between the tubes is also confirmed by the fact ... But there are thermal resistances between the working fluid and the heat reservoirs; for that reason the temperatures of the working fluid are T1 and T2, for the hot and cold isothermal processes, ... 17a and b, obtained by visualizing the flow on the standard and bent fins of tubes of the same dimensions under otherwise same flow conditions Significant segments of the trailing surfaces of the...
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Heat Analysis and Thermodynamic Effects Part 8 potx
Ngày tải lên :
19/06/2014, 10:20
... TH = T3 and TL = T1 (cycle 1-2-3-4 in Fig 3) and T2 and T4 are given by the equations (42) Thus, using equations (42) and the structure of the work in the equation (51), the work w and the heat ... based in the figure 11 and is fitted by the following considerations: The height of the moving fluidized bed in the (y) and (z) directions is constant; The flow of the fluidizing air and that ... bed are both steady and full developed in the mean flow; The flow of the moving fluidized bed is in the (y) direction; The slip velocity between the particles and the air in the (y) direction will...
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Heat Analysis and Thermodynamic Effects Part 9 pptx
Ngày tải lên :
19/06/2014, 10:20
... the larger the permeability, the larger the EOE time of the outer layer of the stock The thermal and heat generating properties of the coal seam used in the simulations are listed in Tables and ... diffuses from both ends and adsorbs in micro pores of the coal seam as it diffuses toward the center of the seam The thermal and heat generating properties of the coal seam used in the simulations are ... width and 5m in height with trapezoid shape On the other hand, the simulation model is just rectangle shape consists same thermal and flow characteristics of the coal stock defined in Fig 14 The...
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Heat Analysis and Thermodynamic Effects Part 10 pptx
Ngày tải lên :
19/06/2014, 10:20
... 7, the wall temperatures of the MHP are increased as the thermal load is increased This means that the thermal equilibrium, which is the isothermal property of the MHP from the evaporator to the ... the temperature at the adiabatic section The tested MHP is the same as the one in Fig It is seen that the temperature difference between the evaporator and the condenser is increased as the thermal ... Fig 9, the effect of the inclination angle on the thermal performance is small The thermal performance of the MHP was almost the same for the tilting mode from the horizontal mode to the top...
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Heat Analysis and Thermodynamic Effects Part 11 docx
Ngày tải lên :
19/06/2014, 10:20
... total length, and the temperature difference between the evaporator and the condenser was about 4–6 °C The inclination angle had a slight effect on the thermal performance, and the thermal characteristic ... from the top heating mode to the bottom heating mode The effect of the total pipe length on the thermal performance of the triangular MHP was dominant In the case of the triangular MHP, the overall ... α and γ phases The appearance of the α phase in the water-cooled sample reveals that the cooling in water reduces the compressive stress of the sample Fig shows the SEM images of the surface and...
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Heat Analysis and Thermodynamic Effects Part 12 pdf
Ngày tải lên :
19/06/2014, 10:20
... that the electrothermal properties of materials not depend on temperature and there is ideal electric and thermal contact on the boundaries between the armature and the rails and between the resistive ... thickness of the sheet The maximum velocity and the optimum mass depend weakly on the magnetic field pulse shape and are determined mainly by the electrothermal properties of the material and the acceleration ... reducing the current density and armature heating rate This effect is the greater the smaller the thickness of the layers and the larger the distance between the rails h To illustrate the potential...
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Heat Analysis and Thermodynamic Effects Part 13 ppt
Ngày tải lên :
19/06/2014, 10:20
... transformers The temperature of the reactor at the entrance and at the exit of the catalyst bed was measured by means of thermocouples connected with the temperature regulator Additionally, the reactor ... the environment Here, the ratio is different because these compounds are emitted mainly by the power industry, followed by heavy and light industries, and then households 352 Heat Analysis and ... destroying the ozone layer of the Earth, thus contributing to the formation of the greenhouse effect Specifically, it absorbs infrared radiation, preventing cooling of the Earth during the night...
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Heat Analysis and Thermodynamic Effects Part 14 pot
Ngày tải lên :
19/06/2014, 10:20
... 500 and 2000 ppm; depending on the type of boiler and the manner of conducting the process, the amount of nitrogen oxides in gases stays in the range of 500-1500 ppm The amount of chlorine and ... lower; the amount of volatile particulates is of the order of 150 mg/m3 These values and temperature in gases upstream the reactor affect the physical and chemical conditions of the execution of the ... without the necessity of additional gas preheating Concurrently, in connection with the positive thermal and catalytic effect, the thermal balance of the process is also positive and the temperature...
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HEAT ANALYSIS AND THERMODYNAMIC EFFECTS doc
Ngày tải lên :
26/06/2014, 23:20
... aquifers in summer and winter and also for determining the depth of shallow groundwater and the velocity and direction of its flow On the other hand, a number of studies considered the indirect effect ... work-source at the cost of work W During this stage couplings with the thermal baths is neglected (thermal isolation) In the second step the systems H and C not interact with each other and freely ... Allah, the Creator and the Sustainer of the world, the Most Beneficent, Most Benevolent, Most Merciful, and Master of the Day of Judgment He is X Preface Omnipresent and Omnipotent He is the King...
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Báo cáo hóa học: " Electron States and Light Absorption in Strongly Oblate and Strongly Prolate Ellipsoidal Quantum Dots in Presence of Electrical and Magnetic Fields" pot
Ngày tải lên :
22/06/2014, 19:20
... where a1 and c1 are the short and long semiaxes of SPEQD, respectively As in the SOEQD case, in the strong SQ regime we neglect the Coulomb interaction between the electron and hole The shape ... inverse character of the behavior of the AE is illustrated in Fig Presence of the magnetic field increases the energy of the both particles, independently of the charge sign Otherwise, the AE shift is ... ~ is the particle momentum operator, ~ is the P A vector potential of the magnetic field, ~ is the electrical F field intensity, ~ is the radius-vector, s is the light velocity r in vacuum, and...
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Báo cáo lâm nghiệp: " Seed germination of Quercus robur, Q. pyrenaica and Q. ilex and the effects of smoke, heat, ash and charcoal" ppsx
Ngày tải lên :
08/08/2014, 00:22
... found that in some plants the smoke acted on the seed-coat, in others on the seed-coat and on the embryo, and there may also be other species in which the smoke also acts on the cotyledons Tieu et ... each of the treatments studied during the first weeks, followed by smaller peaks up to the 45th week in the case of the Smoke treatment and up to the 41st week in the rest of the treatments The heat ... Charcoal, Ash and Ash Dilution At the end of the year, the germination rate and resulting T50 was calculated and the data on the temporal distribution of germination was completed Both the data on...
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Báo cáo lâm nghiệp: "Light-quality and -quantity effects on monoterpene-mediated photo-bleaching of conifer needles" pot
Ngày tải lên :
09/08/2014, 04:20
... extracted in n-hexane and quantified by HPLC on a Lichrosorb Si 60.5 !column with n-hexane and 3% ethylacetate Results and Discussion The results are summarized in Table I The data on the non-fumigated ... -quantity and light/dark cycles, the fumigation with /3-pinene modified pigment and a-tocopherol levels (Table I) Fumigation with j3-pinene led to an increase in chl b and car in (D), (wUD), (rUD) and ... strongly reduced (wL, WUD) These results indicate differential modulation of a-tocopherol synthesis and turnover by different photoreceptor systems and require further detailed investigations...
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The effects of additional nonmagnetic layers on structure and magnetic properties of l10 fept thin films
Ngày tải lên :
13/09/2015, 21:23
... into the Fe site in the FePt alloy, that is, the Cu is in the Fe plane of the L10 FePt ordered alloy Then, the difference in free energy between the order and disorder phases is enhanced and the ... λ: the wavelength, d: the interplanar spacing of the reflecting (diffracting) plane and θ: the angle of the incidence and of the diffraction of the radiation relative to the reflecting plane The ... as the L10 phase The crystal space group is denoted as P4/mmm The L10 phase is an ordered fct superstructure with Pt at the (0 0) and (½ ½ 0) sites and Fe at the (½ ½) and (0 ½ ½) sites With the...
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