This eBook was written as the sequel to the eBook titled DC Circuits, which was written in 2016 by Chad Davis.
This eBook covers Alternating Current (AC) circuit theory as well us a brief introduction of electronics. It is
broken up into seven modules. Module 1 covers the basic theory of AC signals. Since only DC sources are used in
the first eBook, details of AC signals such as sinusoidal waveforms (or sine waves), square waves, and triangle
waves are provided. Module 2, titled AC Circuits Math Background, covers the mathematics background needed
for solving AC circuit problems. The background material in Modules 1 and 2 are combined in Module 3 to solve
circuits with AC sources that include resistors, inductors, and capacitors (RLC circuits).

An essential and practical text for both students and teachers of AC electrical circuit analysis, this text picks up where the companion DC electric circuit analysis text leaves off. Beginning with basic sinusoidal functions, ten chapters cover topics including series, parallel, and series-parallel RLC circuits. Numerous theorems and analysis techniques are examined including superposition, Thévenin's theorem, nodal and mesh analysis, maximum power transfer and more. Other important topics include AC power, resonance, Bode plots and an introduction to three-phase systems. Each chapter begins with a set of chapter objectives and includes a summary and review questions. A total of over 500 end-of-chapter exercises are included. A companion laboratory manual is available.

This book was created to support Project 677 in APSC 100 in the Faculty of Engineering at Queen’s University during the winter term of 2019, and is being updated and expanded to support Project 725 in Winter 2021. It provides a publicly visible collection of information that will help with this design project. Use of these resources elsewhere under the CC license is encouraged, but not supported. The contents of this book will grow and change over the term. Please fell free to add your comments or questions in any of the sections and I will try to address them.

The resources in this book are not comprehensive and are only intended to provide a starting point to explore design options. In particular, there will be many examples illustrated by single products that are not the only, or even the best solutions for a particular application. You will need to go well beyond the contents of this book to make your independent design decisions.

The models used for building heat transfer are very much simplified for an introduction to the ideas and should be used cautiously. Design of actual building systems should be undertaken in much greater detail. The target here is to use models that don’t require you to learn any new physics.

The secondary reason this book exists is to give me some practice using PressBooks to develop Open Educational Resources (OER). Some of the files that are linked from this book are on Google Drive, and some are on GitHub.

Word Count: 13755

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This instructional text and designer resources have been prepared to support those learning about adaptive apparel design. The text is easy for students, scholars, and designers to use, and is organized around the apparel design process: research, sketching, developing a sample notebook, mood or inspiration board, pattern work, first sample, and the completed ensemble. Users can read from beginning to end or jump into resources related to their current phase of design.

This resource contains materials related to Additive Manufacturing.  Feel free to use any of the materials and modify them as needed for your class,  If you modify them, please resubmit them to SLAM Resources.

An open-source textbook covering vector calculus, ordinary and partial differential equations, and Fourier series. The textbook is used in a first-year graduate level course in the Department of Mechanical Engineering at the Colorado School of Mines. It undergoes extensive revisions annually, but is relatively complete.

Word Count: 70634

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Aerodynamics and Aircraft Performance, 3rd edition is a college undergraduate-level introductory textbook on aircraft aerodynamics and performance. This text is designed for a course in Aircraft Performance that is taught before the students have had any course in fluid mechanics, fluid dynamics, or aerodynamics. The text is meant to provide the essential information from these types of courses that is needed for teaching basic subsonic aircraft performance, and it is assumed that the students will learn the full story of aerodynamics in other, later courses. The text assumes that the students will have had a university level Physics sequence in which they will have been introduced to the most fundamental concepts of statics, dynamics, fluid mechanics, and basic conservation laws that are needed to understand the coverage that follows. It is also assumed that students will have completed first year university level calculus sequence plus a course in multi-variable calculus. Separate courses in engineering statics and dynamics are helpful but not necessary. Any student who takes a course using this text after completing courses in aerodynamics or fluid dynamics should find the chapters of this book covering those subjects an interesting review of the material.

The 236-page text was created specifically for use by undergraduate students in Aerospace Engineering and was based on Professor Marchman’s many years of experience teaching related subject matter as well as his numerous wind tunnel research projects related to aircraft aerodynamics and his personal experience as the owner and pilot of a general aviation airplane. It has been used at Virginia Tech and other universities.

Table of Contents
1. Introduction to Aerodynamics
2. Propulsion
3. Additional Aerodynamics Tools
4. Performance in Striaght and Level Flight
5. Altitude Change: Climb and Glide
6. Range and Endurance
7. Accelerated Performance: Takeoff and Landing
8. Accelerated Performance: Turns
9. The Role of Performance in Aircraft Design: Constraint Analysis
Appendix A: Airfoil Data

Instructors reviewing, adopting, or adapting parts or the whole of the text are requested to register their interest at: https://bit.ly/aerodynamics_interest.

978-1-949373-63-9 (PDF) http://hdl.handle.net/10919/96525
978-1-949373-64-6 (ePub) http://hdl.handle.net/10919/96525
978-1-949373-62-2 (HTML/Pressbooks) https://pressbooks.lib.vt.edu/aerodynamics

Short Description:
Aerodynamics and Aircraft Performance, 3rd edition Intended for undergraduates, this text provides “stand alone” coverage of basic, subsonic, aircraft performance preceded by an introduction to the basics of aerodynamics that will provide a background sufficient to the understanding of the subjects to be studied in aircraft performance. NewParaDownloadable versions of this book and further information are freely available at: http://hdl.handle.net/10919/96525NewParaDr. James F. Marchman III is Professor Emeritus of Aerospace and Ocean Engineering and a former Associate Dean of Engineering at Virginia Tech where he taught and conducted research in aerodynamics, aircraft performance, aircraft design and other areas over a 40 year career. NewParaInstructors reviewing, adopting, or adapting parts or the whole of the text are requested to register their interest at: https://bit.ly/aerodynamics_interest.

Long Description:
Aerodynamics and Aircraft Performance, 3rd edition is a college undergraduate-level introduction to aircraft aerodynamics and performance. The objective of this text is to provide a “stand alone” coverage of basic, subsonic, aircraft performance preceded by an introduction to the basics of aerodynamics that will provide a background sufficient to the understanding of the subjects to be studied in aircraft performance. This text is designed for a course in Aircraft Performance that is taught before the students have had any course in fluid mechanics, fluid dynamics, or aerodynamics. The text is meant to provide the essential information from these types of courses that is needed for teaching basic subsonic aircraft performance, and it is assumed that the students will learn the full story of aerodynamics in other, later courses. The text assumes that the students will have had a university level Physics sequence in which they will have been introduced to the most fundamental concepts of statics, dynamics, fluid mechanics, and basic conservation laws that are needed to understand the coverage that follows. It is also assumed that students will have completed first year university level calculus sequence plus a course in multi-variable calculus. Separate courses in engineering statics and dynamics are helpful but not necessary. Any student who takes a course using this text after completing courses in aerodynamics or fluid dynamics should find the chapters of this book covering those subjects an interesting review of the material

This is a nearly verbatim presentation of Dr. Marchman’s 3rd edition (2004) of the text with minor corrections to text and formulas, addition of machine-readable math, alt text, and redrawn figures. It is available in Pressbooks, PDF, and ePub.

Instructors reviewing, adopting, or adapting parts or the whole of the text are requested to register their interest at: https://bit.ly/aerodynamics_interest.

Downloadable versions of this book and further information are freely available at: http://hdl.handle.net/10919/96525

Word Count: 86443

ISBN: 978-1-949373-62-2

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Aerospace Structures by Eric Raymond Johnson is a 600+ page text and reference book for junior, senior, and graduate-level aerospace engineering students. The text begins with a discussion of the aerodynamic and inertia loads acting on aircraft in symmetric flight and presents a linear theory for the status and dynamic response of thin-walled straight bars with closed and open cross-sections. Isotropic and fiber-reinforced polymer (FRP) composite materials including temperature effects are modeled with Hooke’s law. Methods of analyses are by differential equations, Castigliano’s theorems, the direct stiffness method, the finite element method, and Lagrange’s equations. There are numerous examples for the response axial bars, beams, coplanar trusses, coplanar frames, and coplanar curved bars. Failure initiation by the von Mises yield criterion, buckling, wing divergence, fracture, and by Puck’s criterion for FRP composites are presented in the examples.

Resources
PDFs (book and chapter-level)
Problem sets: http://hdl.handle.net/10919/104169
LaTeX sourcefiles: Expected spring 2022
Print (Softcover. Does not include appendix): https://www.amazon.com/dp/1949373444.

Professors, if you are reviewing this book for adoption in your course, please let us know here: http://bit.ly/interest-aerospace-structures. Instructors reviewing, adopting, or adapting parts or the whole of the text are especially encouraged to sign up.

"Air Safety Investigation – The Journey" is an introductory book that explores the world of air safety investigation. Unlike a how-to manual for investigating aviation accidents, this book focuses on the essential knowledge and mindset required to conduct a safety investigation. It covers the various phases of an investigation, from gathering facts to formulating safety recommendations, with each chapter addressing a different relevant aspect. With the increasing complexity of investigations, critical thinking, logic, and speculation are essential skills for investigators to possess. This book delves into these topics, offering thought-provoking examples and questions to address the challenges of drawing conclusions and obtaining positive investigative outcomes. Its aim is to help students and readers interested in air safety develop the necessary mindset and knowledge to conduct an investigation. By the end of the book, readers will gain a deeper understanding of the complexities involved in an air safety investigation.

This book is designed for use in an introductory course on digital logic design, typically offered in computer engineering, electrical engineering, computer science, and other related programs. Such a course is usually offered at the sophomore level. This book makes extensive use of animation to illustrate the flow of data within a digital system and to step through some of the procedures used to design and optimize digital circuits.

El actual crecimiento de las comunicaciones inalámbricas, debido al incremento de las comunicaciones de voz, vídeo y consumo de datos está causando una creciente demanda de la cantidad de canales y el ancho de banda, esto, está impulsando a los sistemas transceptores de comunicación hacia frecuencias de microondas y de ondas milimétricas para satisfacer la demanda mundial de mayores velocidades de transmisión de banda ancha, los sistemas de comunicación de comunicación inalámbrica requiere también de n desarrollo a la par de esta demanda. La Teoría electromagnética proporciona la base para todos los circuitos de microondas que hizo posible los grandes avances logrados por el campo de microondas. Es importante entender que la teoría de campo de microondas es sólo una parte de la teoría del campo electromagnético en general.

Short Description:
This lab manual provides students with the theory, practical applications, objectives, and laboratory procedure of ten experiments. The manual also includes educational videos showing how student should run each experiment and a workbook for organizing data collected in the lab and preparing result tables and charts.

Long Description:
Basic engineering knowledge about fluid mechanics is required in various sectors of water resources engineering, such as designing hydraulic structure on any riverine environments and flood mitigation process. The objective of this book is to enable students to understand fundamental concepts in the field of fluid mechanics and apply those concepts in practice. Applied Fluid Mechanics Lab Manual is designed to enhance civil engineering students’ understanding and knowledge of experimental methods and basic principles of fluid mechanics. The ten experiments in this lab manual provide an overview of widely used terms and phenomena of fluid mechanics and open channel flow, which are required for solving engineering problems.

Word Count: 21988

ISBN: 978-1-64816-997-7

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This free electrical engineering/technology textbook provides a series of chapters covering electricity and electronics. The information provided is great for students, makers, and professionals who are looking for an application-centric coverage of this field.

Word Count: 7198

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Word Count: 21523

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Word Count: 23846

ISBN: ISBN-13: 978-1-62307-006-9

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Word Count: 23772

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This course provides basic principles of print reading. Topics include line types, orthographic projects, dimensioning methods, etc. There is also a two week introduction to GD&T towards the end of the course. This material includes the course layout, lectures, videos, and other resources. The LMS used to create it was Odigia.