A control system has the following plant transfer function: G(s)= 1/0.4s +1

The system requirements are the following:
ess < 0.01 to a unit ramp unit
Ï•PM > 40 deg

a. If necessary, modify the plant to meet the steady-state error requirement.
b. Using the bode plot technique, design a phase-LEAD compensator to meet the system requirements.
c. Using the bode plot technique, design a phase-LAG compensator to meet the system requirements.
d. Check your answers by drawing the bode plots for the compensated system and the error function for part a) and b). You can use Matlab.

Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.

Determine the time of the day and month of the year at which the peak sensible cooling load occurs for a top floor, north-eastern corner room of an office building in durban for the following conditions: floor area: 8 x 8 x 3 m east and north walls: 115 mm face brick (outside), 20 mm air space, 115 mm ordinary brick (inside) with 15 mm plaster roof construction: suspended plasterboard ceiling, 450 mm air space, 150 mm concrete, 75mm screed, waterproofing no heat transfer across other surfaces window area 3x 1,5 m high in north wall only. ordinary glass with venetian blinds. lights and occupants : from 07: 00 to 18: 00 average light density: 25 w/m2 number of occupants : 5 seated, light office work room temperature 24°c

Write a technical essay (maximum two pages) about stress concentration. and paste from the textbook. instead, read updated material about this phenomenon and provide a technical evaluation of the different techniques to avoid/reduce such phenomenon. consider in your analysis cutting-edge computational techniques such as fea to study and analyze stress concentrations.