10/20/15
Kirchhoffs Current Law: KCL
Kirchhoffs Current Law can also be
used to analyze circuits. This law,
based on the conservation of charge:
i = 0
Node
Illustration of Kirchhoffs
Current Law (KCL). The sum
of the three currents flowing
into the connec
Global Health Perspectives
Mid-term Study Guide: Things You Should Know
October 1, 2015
Basic survival needs
The 1948 WHO definition of health: It is not necessary to memorize this
definition, but you should be able to explain the significance of this bro
Tissue Mechanics: Soft Tissue
Mechanics
Fundamentals Of Tissue Structure,
Function, And Replacement
BMES 5984
Soft Tissue Mechanics: Overview
The mechanical behaviors of all tissues are a
direct result of:
The structure, nature, and properties of their
Introduction to Biomechanics
14:125:208
Fall Semester 2011
Exam 2
Please do not answer the questions on exam, use the extra paper/blue book. Please write your
name at the top of every paper. Hand in the entire exam (questions and your answers). Exams
with
Exam 2 Review
This section of the class focuses on:
Tension/Compression
Know about the stress-strain curve
Points on the curve
How the curve changes for different materials,
including biological
Difference between ductile and brittle behavior
What d
125: 309 biomedical devices & Systems
Fall 2016
Dr. Drzewiecki
Homework Assignment #4
Due Thursday, November 3
use this page as your cover sheet .staple your answers to it and print and sign your
name below. HAND IN At the beginning of CLASS. If possible
Practise Problems: Systems and Devices
Dr. Drzewiecki
9/21/16
1. Design a system model that will provide the mathematical
formula
Of
y = cfw_[ x1 x2 ] * k* G
2. Write the mathematical equation that describes th
ANALOG ANALYSIS in
SINUSOIDAL STEADY-STATE
To analyze an electric circuit or analog model we use
differential equations which even for the simplest of the
cases is tedious.
Two approaches are used to simplify the analysis of
systems. The approaches circ
Biological Systems
In p u t o r
S tim u lu s
P h y s io lo g ic a l
S y s te m
O u tp u t o r
R esponse
A system is a collection of processes or components that
interact for some common purpose, although that purpose may
only be the invention of human int
The Sinusoidal Waveform
A sinusoidal waveform is defined as:
2 t
x (t ) = A sinpt = A sin2 fpt = A sin
T
where A is the signal amplitude, specifically the peak-to-peak
amplitude, T is the frequency in radians per second, fp is the
frequency in Hz, and
Test is scheduled for October 14.
The test is closed book, closed notes. You are allowed to bring one Notes
Page (8.5 by 11 inch paper, both sides) with you with notes you choose to
create. You should review the Key Ideas and Formulas secton at the end of
14:125:208: Introduction to Biomechanics
Homework Assignment #5
Spring 2007
Due 3/08/07
Problem 1: Ozkaya and Nordin Problem 7.6
In order to complete this problem we first write out the
equations of Static Equilibrium
(a)
F
y
= 0 R A + T1 W1 + T2 W2 = 0
l
14:125:208: Introduction to Biomechanics
Exam #1 Review Problems
Spring 2012
To be discussed in class 2/20/12
This assignment is all old exam problems. If you can work through these you
should have no problem with the exam.
Problem 1: A biomechanics gradu
14:125:208: Introduction to Biomechanics
Homework Assignment #6
Spring 2007
Due 3/27/07
Problem 2:
Two cylinders are subjected to an equally distributed load F = 6 kN in two different
configurations. The aluminum (gray) rod (E = 69 GPa) has a diameter of
14:125:208: Introduction to Biomechanics
Exam #1 Review Problems
Spring 2012
To be discussed in class 2/2/12
This assignment is all old exam problems. If you can work through these you should have no
problem with the exam.
Problem 1: A biomechanics gradua
Easy example3.5 in Ozkaya and Nordin
What force and moment are produced at
the elbow, B, and the shoulder, A?
Assume a=0.25m, b=0.3m, F=200N.
What force and moment are produced at
elbow, B, and shoulder, A? Assume
a=0.25m, b=0.3m, F=200N.
Net force of ext
Linear Systems Analysis
A linear system has proportionality of response (twice as
much in, twice as much out).
Stated mathematically:
y = f(x); where f is a linear function, then:
ky = f(kx)
Differentiation and integration are linear operations, so that
p
14:125:208: Introduction to Biomechanics
Homework Assignment #4
Spring 2010
Due 2/22/10
Problem 1: (Anatomical Terms)
1) The _ plane divides the body
into right and left halves.
5) The scapula (shoulder blade) is
_ to the vertebral column.
A) transverse
B
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 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
ANALOG ANALYSIS in
SINUSOIDAL STEADY-STATE
The
two approaches are used to simplify the analysis
of systems. The approaches circumvent the need to
solve differential equations.
The Laplace Transform is the most general, and is
the most frequently used si
Frequency Transformations
Probing a Signal
Complex signals such as the EEG signal shown previously
could be analyzed by probing with reference signals
Crosscorrelation provides a mechanism for finding out if
sinusoids are embedded in a complicated signa
125:201 Introduction to Biomedical Engineering
Biomechanics, Homework #2
Due Monday October 25th
Problem 1
A) Find the joint reaction force, R, and the abductor muscle force, M, in the right hip when
a woman stands on her right leg while carrying a 25kg s
125:201 Introduction to Biomedical Engineering
Biomechanics, Homework #1
Due Monday October 17th
Problem 1: (Muscle Physiology)
a) A non-hydrolyzable analog of ATP which uses a methylene linkage (-CH2-)
instead of oxygen (O) between the terminal phosphate
NAME: _
Quiz #1 Solutions: Biomechanics and Biomaterials (10 points)
1. Which branch of biomechanics best describes each situation? Connect items
(with lines) from left column to those of right column.