Problem 2:
Suppese we fennel some miscellaneous llurnm [issue i1 e mseareh fleezer. sized 11.1 mm
ung], 5 mm hide. 2 I'l'1l'l'l [ick]: and deride te 12E] il hiemedmief i1 uniexiel hensien at a
stain rate ef1'Wn1in In pmeluee ainmedeeeiurl curve.
Using l
Problem Set 3
Question 1:
A cell is suspended in a salt solution containing 150 mM NaCl and 5 mM KCl as shown in the
Figure below. The cell contains proteins, which cannot move across the cell membrane, and
which result in a fixed negative charge [X-] ins
Bioelectric Systems HW
1)
Cardiac conduction system - Health Video: MedlinePlus Medical Encyclopedia. (n.d.).
Retrieved October 06, 2016, from
https:/medlineplus.gov/ency/anatomyvideos/000021.htm
Conduction System Tutorial. (n.d.). Retrieved October 06, 2
Bioelectrics Hw_
2
http:/www.pion.cz/en/article/electromagnetic-spectrum
1) X-Ray
The wavelength of an X-Ray is between 1*10^-12 and 1*10^-8 meters. The
biological type of tissue that absorbs this type of wavelenghth is bone like the ribs
and skull. That
PRACTISE2
2 (10 points) Find the equivalent impedance for the circuit below.
Use =10,000 rad/sec. Give your final impedance in the form of a
phasor.
2. DRAW THE
OP AMP Circuit configurations for an A. Inverting
Amplifier, B. a Non- Inverting Amplifier and
The Analysis of Transients: The Laplace Transform
Phasor analysis allows us to analyze any linear system
using algebraic operations, provided all sources are
sinusoidal and in steady-state.
With the aid of the Fourier series analysis, any periodic
signa
The Frequency Characteristics of Circuits
and Systems
Just as signals have frequency characteristics, circuits or
even general systems have frequency characteristics.
Circuit or system frequency characteristics show how the
circuit/system operates on th
System Models and Behavior: The System Model
The systems model is a process oriented
representation that emphasizes the influences, or flow of
information, between modules.
A systems model describes how processes interact and
what operations these proce
The Rules of the Game
Combinations of electrical elements are called
circuits or networks. Either of two rules can be
used to analyze circuits: Kirchhoffs Voltage Law
or Kirchhoffs Current Law.
Kirchhoffs Voltage Law (KVL) is based on
conservation of ener
System Simplifications ~ Passive Network Reduction
Circuits can often be simplified by combining elements.
Many quite complex circuits can be reduced to just a few elements
using an approach known as network reduction.
Such simplifications can provide
Second-order term: (1-(/n)2 + j2/n)
Magnitude
Applying the asymptote approach: the high- and low-frequency
asymptotes when is either much greater or much less than n are:
2
lim
TF (low) = < 20 log 1 + j 2 = 20 log(1) = 0 db
n
n
n
( )
2
2
lim
TF (high) =
, / (4,;
a b 2 S It 1 7" [I
VH1 C (W5 [,56WL fjwfeg Frequency (rad/sec) -
Frequency (rad/sec) Phase
Frequency (rad/sec)
Frequency (rad/sec) 1o 10 1o 104 1o
' Frequency (rad/sec)
1o 10 103 1o , 10
Frequency (rad/sec) Phase
5)
100
Frequency (rad/s
devices part 2
review slides
Dr. Drzewiecki
Kirchhoffs Voltage Law: KVL
+ V2
V1
+
+
V3
Illustration of Kirchhoffs Voltage Law (KVL). The
three voltages must sum to zero:
V1 + V2 + V3 = 0
Example 5.1 Find the voltage across the capacitor
Solution. The circ
Basic Analog Electronics:
Operational Amplifiers
Electronics circuits come in two basic varieties: analog and digital.
Digital circuits feature electronic components that produce only two
voltage levels, one high and the other low.
Analog circuit eleme
The v-i plot and Equivalent Resistance
The plots of four different resistors are shown including 0 and
infinity . The equation for a straight line is: y = mx + b,
where m is the slope of the line and b is the intercept.
From Ohms law,
= Ri, so the
voltag
Network Reduction with Sources (continued)
There are two approaches to finding the Thvenin or
Norton Equivalent of a circuit.
1. Find the open-circuit voltage, oc, and the short circuit
current, isc. RT (or RN) is just the ratio of voc/isc
2. Evaluate onl
, / (4,;
a b 2 S It 1 7" [I
VH1 C (W5 [,56WL fjwfeg Frequency (rad/sec) -
Frequency (rad/sec) Phase
Frequency (rad/sec)
Frequency (rad/sec) 1o 10 1o 104 1o
' Frequency (rad/sec)
1o 10 103 1o , 10
Frequency (rad/sec) Phase
5)
100
Frequency (rad/s
Linear System Frequency Plots: The Bode Plot
The Transfer Functions of any linear system will have the
general form:
TF ( ) =
Bj(1 + jk 1 )(1 k 2 2 + jk 3 ).
j(1 + jk 4 )(1 k 5 2 + jk 6 ).
where B is a constant and k1, k2, k3,. etc. are coefficients of th
Resonance
Resonance is a behavior that may occur in almost any system.
It is a frequency dependent behavior characterized by a sharp increase
(or decrease) in some system variables over a limited range of
frequencies.
It occurs frequently in mechanical
Homework 8
BME 208
Due: 3 Nov 2013
Worked with:_
1. The beam below supports a distributed load. Determine the location
and magnitude of the resultant force acting on it.
FR = 112.5 kN, xR = 3.8 m
2. The figure below shows the stress strain diagram from a
Homework 12
Due: 1 Dec 2013
BME 208
Worked with:_
1. The rod in the figure below has a diameter of 26 mm and is subjected
to the torques below. If the shear modulus is G = 79 GPa, determine
the angle of twist at the end (B).
In class we solved this and de
Homework 10
BME 208
Due: 17 Nov 2013
Worked with:_
Problems are 10 points each.
1. The beam below supports a distributed load. Determine the location and
magnitude of the resultant force acting on it. (Hint: remember how you found the
center of mass for a
Homework 6
BME 208
Due: 20 Oct 2013
Worked with:_
Questions are 10 points each
1. We solved the elbow joint reactions for a handstand problem in class.
Assume he's showing off and places a 25 lb weight on his feet. If his
legs are bent in such a way that