Tìm thấy 20+ kết quả cho từ khóa "Per unit area"
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Let dW(,T) the energy emitted per area dS per unit time, and transmitted by. Spectral irradiance which is the energy emitted per unit area per unit time per unit frequency is defined as:. Spectral irradiance is dependent on:. and The nature of the object ( glass, metal....). the energy emitted by a unit area of the surface per unit time and transmitted by electromagnetic waves of all frequencies:. The nature of the object ( glass, metal, balckbody. sent to the area dS, per unit time..
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Increase in stomatal density, the number of stomata and reduction in the size of guard cells per unit area represent a self-defense system, which is developed in plants under stress conditions and helps them survive in the contaminated environment (Azmat et al., 2009).. Effect of cadmium on leaf area. The change in leaf area due to cadmium is a common phenomenon associated with a reduction in the transpiration rate (Lai et al., 2015).
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Spectral irradiation GA (W/m2 • /x,m) is defined as the rate at which radiation is incident upon a surface per unit area of the surface, per unit wavelength about the wavelength A, and encompasses the incident radiation from all directions.. Spectral hemispherical reflectivity pl is defined as the radiant energy reflected per unit time, per unit area of the surface, per unit wavelength/GA..
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Spectral irradiation GA (W/m2 • /x,m) is defined as the rate at which radiation is incident upon a surface per unit area of the surface, per unit wavelength about the wavelength A, and encompasses the incident radiation from all directions.. Spectral hemispherical reflectivity pl is defined as the radiant energy reflected per unit time, per unit area of the surface, per unit wavelength/GA..
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(c) How much time-average power per unit area is delivered by the current?. (d) How does this generated power compare to the elec- tromagnetic time-average power per unit area leaving the volume current at z = ±d?. What are. the resulting electric and magnetic fields on each side of the sheet?. (c) For what values of a are the solutions spatially evanescent or oscillatory?.
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The power per unit area outflowing from rough surface is. (&‘&. S S in (9.3.23). That is, we include the intensity due to the product of first-order fields and the product of the zeroth-order field and the second- order field. Thus the power per unit area outflowing from the rough surface that is associated with the coherent field is. 402 9 1-D RANDOM ROUGH SURFACE SCATTERING (9.3.29) that. From (9.3.30), we define the power flow per unit area of the incoherent wave as.
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Specific Gasification Rate – It is the amount of rice husk fuel consumed per unit area of the reactor
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L e Radiance Radiant power per unit solid angle W m sr. E e Irradiance Radiant power per unit area W m. H Irradiance Radiant power per unit area W cm. ½B steradians in the corner of a cube (that is, the solid angle subtended by two walls and the floor of a room is ½ B steradians).. If length is measured in centimeters, 2 the dimensions of the solid angle is cm /cm . However, it is the unit, steradian, that is dimensionless (in terms of units of length), not the solid angle itself.
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Compute the weight of the membrane per unit area. Weight of the membrane per unit area, w ⫽ w u ⫻ t, where the weight per unit volume, w u ⫽ 0.3 lb / in 3 (1.1 N / cm 3. membrane thickness, t ⫽ 0.005 in (0.0127 cm). Hence, w lb / in 2 (0.014 N / cm 2. length of the membrane boundary, L ⫽ d ⫽ 6 in (15.24 cm). Compute the area of the membrane. The area of the membrane, A. Compute the frequency of the fundamental mode of vibration in the membrane.
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Compute the weight of the membrane per unit area. Weight of the membrane per unit area, w ⫽ w u ⫻ t, where the weight per unit volume, w u ⫽ 0.3 lb / in 3 (1.1 N / cm 3. membrane thickness, t ⫽ 0.005 in (0.0127 cm). Hence, w lb / in 2 (0.014 N / cm 2. length of the membrane boundary, L ⫽ d ⫽ 6 in (15.24 cm). Compute the area of the membrane. The area of the membrane, A. Compute the frequency of the fundamental mode of vibration in the membrane.
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The time-average dissipated power density per unit area in the walls is then:. The total time average dissipated power per unit length. required in (48) is obtained by integrating each of the. terms in (51) along the waveguide walls:. while the electromagnetic power above cut-off for the TElo mode is given by (47),. <P>. 4(7r/a)2 so that. 2 <P>.
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The displacement of the medium element of mass dm = dV from the equilibrium position:. is a vector that has the magnitude equal to the energy that goes across a unit area perpendicular to the wave propagation direction during a unit time. If P is the power emitted by the source, The average power per unit area perpendicular to the direction of wave propagation is called the. the intensity equals the product of the average energy density and the wave speed v.
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If the power density at a specified range is one microwatt per square meter and the antenna's effective capture area is one square meter then the power captured by the antenna is one microwatt.. POWER DENSITY. The power of a transmitter that is radiated from an isotropic antenna will have a uniform power density (power per unit area) in all directions.
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Ferritin: Protein chứa Fe >>>. a measure of productivity per unit area (g m -2 - 2 d d -1 - 1. al rate of growth.. thời gian sinh trưởng.. Alternatively: measure increase in dry weight per unit leaf area (Unit Leaf Ratio, ULR) a measure of productivity per unit area (g m -2 d -1
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Incident-energy parameter Hk is the sum of the energy contributions from all surfaces in the enclosure arriving a t surface k per unit time per unit area.. For color scenes, we can calculate the mdwidual RGB components of the rad~os- ity (Bw, B,, BkB) from the color components of pl and E,.. (1, cos 4j d o ) d A , (14-76) But solid angle d o can be written in terms of the projection of area element d A k perpendicular to the direction dB,:.
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Find the scaling of the capacitance per unit area.. Using data from Exercise 1.7, fi nd the voltage and clock rate of the Core 2 processor for the next process generation.. Find the percentage of the total dissipated power comprised by static power.. Determine the larger of the two leakage currents at 1.0 V and 1.2 V, assuming a static to dynamic power ratio of 1.7..
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The total force per unit area on the slab is zero:. is placed at y = d parallel to a cur- rent sheet Koi, at y = 0, as in Figure 5-9c, the magnetic field due to each sheet alone is. The force on a surface current element on the second sheet is. However, since the magnetic field is discontinuous at the current sheet, it is not clear which value of magnetic field to use.
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The force per unit area on the-conductor then has x and z components:. I="6 f dt (60) Since the real part of a complex quantity is equal to half the sum of the quantity and its complex conjugate,. Then using (62) in (59), the x component of the time- average force per unit area is. where the last equalities were evaluated in terms of the slip S from (55).. When the wave speed exceeds the conductor's speed (w/k >.
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Plants may be grown in tiers (with artificial lighting), allowing much greater production per unit area. Growth rates can be accelerated, allowing greater production per unit area, per year. Hydroponic production can be designed to need less manpower. The main disadvantage of hydroponic fodder cropping is that the establishment costs can be relatively high. Tobacco can be used as a natural pesticide..
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(c) For each of the solutions find the time-average power per unit length in each region.. (d) If the dielectric has a small Ohmic conductivity o, what is the approximate attenuation rate of the fields.. (b) For each of these modes, what are the surface current and charges on the conductor?. (d) If the conductor has a large but noninfinite Ohmic conductivity oar, what is the approximate power per unit area dissipated?. (e) What is the approximate attenuation rate of the fields?