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Problem:
Compared to open field cropping, greenhouse cultivation has higher crop yield and quality but also higher energy use and environmental impacts per unit land area. Which TWO of the following are the major factors that contribute to energy consumption and carbon emission in the controlled environment system?
a. Greenhouses are responsible for a great percentage of carbon emissions since they are mostly run on fossil fuels
b. The majority of current greenhouses utilizing conventional materials and traditional technologies cause high constructional and operational cost
c. The greatest heat loss in greenhouses arises from glazed areas. Almost all of greenhouses use plastic or glass which have high transmissivity, but poor overall heat transfer coefficient
d. Conventional facade materials (glass, polyethylene, semi-rigid plastic, and the plastic film) have very high shading coefficients, resulting to remarkable solar heat gains in summer, and insufficient thermal resistance values causing notable heating demand in winter
What is the Diversity Factor in Electrical Wiring Installation ??
Why then do we even use JFETs as amplifiers. What is it that make them attractive even though they are non-linear. How do we minimize the effect of their non-linearity
A bidirectional shift register is one in which the datacan be shifted either left or right. It can be implemented by usinggate logic that enables the transfer of a data bit from one stageto the next stage to the right or to the left, depending on ..
For a coaxial line with inner conductor radius a and outerconductor radius b, V = V0 at ρ = a and V = 0 atρ = b. Find the potential distribution by solving Laplace'sequation. Also find capacitance per unit length.
A USB communication link requires a circuit that produces the sequence 00000001. You are to design a synchronous sequential circuit that recognizes this sequence. Additionally, there is an E input to this circuit.
An increase in the reverse bias base -to-collector voltage reduces the bas width (base modulation effect). At what voltage would the base width be reduced to zero ("punch through" breakdown) if the zero-bias base width is 0.937 μm
Determine the expression for the frequency response H(O) of a causal IIR LTI discrete-time system characterized by the input-output relation y[n]=x[n]-ay[n-R], |a|
Build the mathematical model of equivalent electrical system (ES). Choose the magnitudes of resistors, capacitors and inductors from commercial catalogue that result into ES equivalent to MS.
Can you think of an explanation for the two peaks in the histogram? Is there some consideration other than height that results in the two separate peaks? What is it?
006014RR- Take a look at the figure. What is the first step you should take to solve the formula? What is the average number of hours you worked in one week? Which one of the following distances is the longest?
Suppose a tiny particle were to be attached to the string at x = 5 cm, obtain an expression for the vertical velocity of the particle as a function of time.
Two of the narrators in The Year of the Flood, Toby and Ren, are young women who experience some form of sexual exploitation. Amanda as well engages in "trades," something she says that she doesn't like but does out of necessity.
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