540:453 Production Control
Lecture 3: Forecasting (Ch. 2)
Prof. T. Boucher
1
Exponential Smoothing
A type of weighted moving average that applies declining
weights to past data
Weights most recent d
Physics 341: Problem Set #9
due November 11
1. The Plummer model for a spherical star cluster is given by the density prole
(r) =
3M
a2
4 (r2 + a2 )5/2
where M is the total mass, and a is a core radiu
Physics 341: Problem Set #8 Solutions
1. The vertical motion of stars in spiral galaxies depends on the gravity exerted by the
disk, so it allows us to weigh the disk.
(a) Use dimensional analysis to
540:453 Production Control
Lecture 16: Aggregate Planning (Ch. 4)
Prof. T. Boucher
1
Aggregate Production Planning Problem
Given
Forecasted aggregate demand covering the selected
planning horizon
T
540:453 Production Control
Lecture 10: Inventory Control and
Uncertain Demand
Prof. T.O. Boucher
1
Effect of Demand on EOQ:
Deterministic vs. Stochastic
Inv
Q=600
Inv
LT=3 wk
Q=600
Reorder
Point=300
L
540:453 Production Control
Lecture 8: Sensitivity of EOQ and
Exchange Curves
Prof. T.O. Boucher
1
The basic EOQ model
The EOQ model forms the basis for all the inventory control
models. It treats the
540:453 Production Control
Lecture 5: Inventory Control s.t. Known
Demand (Ch. 4)
Prof. T. Boucher
1
Topic Areas in Production and
Operations Analysis
Forecasting
Inventory Control: Deterministic Envi
540:453 Production Control
Lecture 4: Forecasting (Ch. 2)
Prof. T. Boucher
1
Winters Method: Exponential Smoothing
w/ Trend and Seasonality
Basic Data Pattern
2
Winters Method: Exponential Smoothing
540:453 Production Control
Lecture 2: Forecasting (Ch. 2)
Prof. T. Boucher
1
Introduction to Forecasting
What is forecasting?
Primary function is to predict the future
Not just a guess
Definite me
540:453 Production Control
Lecture 1: Introduction, Course Overview
Class Meeting: W2 10:20-11:40am (SEC-117)
F5 3:20-4:40pm (SEC-117)
Prof. Thomas Boucher
1
Staff Information
Instructor:
T.O. Bouche
Physics 341: Problem Set #11
due November 20
1. Light from the H transition of hydrogen is emitted at a wavelength
Recall that for light, = c.
= 656.28 nm.
(a) Consider a star moving directly away fro
Physics 341: Problem Set #10
due November 18
You are encouraged to work in groups on these problems, but each student must write up
the solutions individually. You must also list your collaborators on
Physics 341: Problem Set #10 solutions
1. In this problem you will calculate a microlensing light curve. In the gure below, the
dashed straight line represents the trajectory of a point source passing
Physics 341: Problem Set #9 Solutions
1. The Plummer model for a spherical star cluster is given by the density prole
(r) =
3M
a2
4 (r2 + a2 )5/2
where M is the total mass, and a is a core radius.
(a)
Physics 341: Problem Set #7
due October 28
You are encouraged to work in groups on these problems, but each student must write up
the solutions individually. You must also list your collaborators on y
Physics 341: Problem Set #7 Solutions
1. Recall that the surface brightness of an exponential disk has the form
I (R) = I0 e
R/hR
where I0 is the central surface brightness and hR is the disk scale le
Physics 341: Problem Set #6
due October 16
You will need to make some assumptions to answer some of these questions. Explain your
reasoning, and show your work!
1. You may have heard that a person fal
Phys 341: Homework #5 Solutions
1. (a) If the Earth and Moon are tidally locked and the Earths rotation period is 47 days, the
the Moons orbital period is also P = 47 days = 4.1 106 s. Then from Keple