Which of the following groups of systems is required to be grounded?
A. Electrical systems used exclusively to supply industrial electric furnaces for melting,
refining, tempering, and the like
B. Separately derived systems used exclusively for rectifiers that supply only adjustable-
speed industrial drives
C. Separately derived systems supplied by transformers that have a primary voltage rating
less than 1000 volts for control circuits
D. High-impedance grounded neutral systems as specified in 250.36
D. High-impedance grounded neutral systems as specified in 250.36
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In a sensor network, the energy consumed by different functions by a sensor is as follows:
Assume the total number of nodes as P, the number of cluster heads to be m, the number of sensor nodes which send their data to different cluster heads as n, and the frame size to be B bits.
(a) Find the power consumption, during a frame time period if sensing and communication is done during every frame, assuming the other half of the nodes are sleeping at that time.
(b) Find the power consumption in the idle frame when sensing and
communication to the CH is done in every alternate frame. Remember that power is consumed even in the sleeping mode of the cycles, when sensing is not carried out.
(c) Find the total power consumption in different frames if sensing is done every other cycle, while transmission to CH is done every fourth frame.
(d) Repeat part (b) if there are 10 clusters, with each cluster consisting of 8 sensor nodes and aggregation done by CH every 8 frames while CH to base station communication takes place every 16 frames.
¿Cuál de los siguientes métodos de control de mantenimiento del calor proporciona el mayor grado de control de temperatura?
a. Control autorregulado b. Control sensor de ambiente c. Control sensor de líneas d. Control del tramo del tubo sin circulación
When freezing semen, a(n) ____________________such as glycerine is added
Fill in the blank(s) with correct word
The Honda Insight was designed to have a driving range of 1,000 miles.
Answer the following statement true (T) or false (F)