Tutorial Week 7 - Class and Entity-Relationship Diagrams 1 Class Diagrams and Entity Relationship Diagrams (ERD) Class diagrams and ERDs both model the structure of a system. Class diagrams represent the dynamic aspects of a system: both the structural and behavioural features. ERDs‚ depicting only structural features provide a static view of the system. 2 Class Diagrams 2.1 Elements of a class diagram: 2.1.1 class A class is a general concept (represented as a square box). A class defines
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PROPERTY DIAGRAMS OF PURE SUBSTANCES SUBJECT : ENGINEERING THERMODYNAMICS CONTENTS: * Phase and pure substance * Properties of a substance * P-V diagram for a pure substance * P-T diagram for a pure substance * P-V-T surface * T-S diagram for a pure substance * h-s diagram for a pure substance Thermodynamic Properties * Characteristics by which physical properties of system may be described. e.g. pressure‚ volume‚ temperature‚ entropy‚ enthalpy etc
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Network Diagrams and schedule analysis NETWORK DIAGRAMS ARE SCHEMATIC DISPLAYS OF PROJECT SCHEDULE ACTIVITIES AND THE INTERDEPENDENCIES BETWEEN THESE ACTIVITIES. WHEN DEVELOPED PROPERLY‚ THIS GRAPHICAL VIEW OF A PROJECT’S ACTIVITIES CONVEYS CRITICAL SCHEDULE CHARACTERISTICS REQUIRED TO EFFECTIVELY ANALYZE AND ADJUST SCHEDULES – THUS RESULTING IN ACCURATE AND FEASIBLE SCHEDULES. THIS DOCUMENT ADDRESSES WHAT SHOULD BE CONSIDERED IN THE DEVELOPMENT OF A NETWORK DIAGRAM‚ HOW NETWORK DIAGRAMS ARE CREATED
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Week 5 iLab #1 Parts: Breadboard DC Power Supply Hand Held DMM Test leads Wire 100 Ω resistor‚ 120 Ω resistor‚ 220 Ω resistor‚ 330 Ω resistor 1. Identify each of these circuits. 2. Given the circuit below‚ calculate the values listed below. IT: _64mA__ IA: __18.18mA____ IB: __45.45mA__ VR1: _3.99V___ VR2: __5.99V__ VR3: _5.45V___ VR4: __4.54V___ Ra= R1+R2= 220Ω+330Ω= 550Ω Rb=R3+R4= 120Ω+100Ω= 220Ω Ia= Vs/Ra= 10V/550Ω= 0.01818
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the electric current flow through it. Measured in ohms (Ω) and represented by R. https://www.google.com/search?q=resistance&espv=2&biw=1366&bih=667&source=lnms&tb m=isch&sa=X&ei=uRP3VJroO4mvyQSGvYHoBQ&ved=0CAYQ_AUoAQ#tbm=isch&q=resista nce+in+circuit&imgdii=_&imgrc=y9SFhM_QxcpFSM%253A%3BU8lmR34zQfgLRM%3Bhttp% 253A%252F%252Fmedia.cheggcdn.com%252Fmedia%252F9c5%252F9c56ab84e01f4850 a9bf83c2f2efdfba%252FphpSPtH0y.png%3Bhttp%253A%252F%252Fwww.chegg.com%252 Fhomeworkhelp%252Fquestionsandans
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ELEC 202 LAB 1 REPORT INTRODUCTION TO LABORATORY INSTRUMENTS AND RESISTIVE CIRCUITS Objectives: The aim of the first experiment is to become familiar with lab instruments‚ get an idea about their working structure and how to use them when necessary. In addition to that in the first part of the experiment our aim is to read color codes of resistors and get idea about how to use multimeter for resistor measurements. In the second part of the experiment our aim is to see the operation of
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Gas Station Project * Main * My Books * C/C++ Programs * Java Programs * Perl/PHP/Ruby Programs * Team Projects * Various Projects Program Description This was a semester-long project from my software engineering class at UNO. The goal of this project was to create a gas station management software package using the classic waterfall development lifecycle. Some of the requirements that needed to be met were: the ability to control gas pumps‚ keep track of in-store
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The sensors are usually LED/LDR‚ LED/Photodiode or LED/Phototransistor pairs and the controller is an electronic circuit which executes the desired feedback algorithm. Gear motors are used for driving the robotic wheels. Note:- If you are interested in Arduino based development‚ we have created this same line follower robot using arduino as well. You may try the arduino based circuit as well to see how same project is developed using different controllers. The line follower robot presented here
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ELEC150 Circuit Theory I Module 2 Homework Instructions Save this document and place your answers into it so you can submit it to the appropriate homework dropbox. Handwritten solutions should be scanned and saved as a BMP or GIF or JPG image‚ or scanned and pasted into this document. Questions 1. An electron that has left the parent atom is called a ___free___ electron. 2. What is the voltage between two points if 100 J of energy is used to move 20 C between the points? V=
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Transformation We can now solve simple series‚ parallel or bridge type resistive networks using Kirchoff´s Circuit Laws‚ mesh current analysis or nodal voltage analysis techniques but in a balanced 3-phase circuit we can use different mathematical techniques to simplify the analysis of the circuit and thereby reduce the amount of math’s involved which in itself is a good thing. Standard 3-phase circuits or networks take on two major forms with names that represent the way in which the resistances are connected
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