EMC FOR PRODUCT DESIGNERS - TIM WILLIAMS

ELECTROMAGNETIC INTERFERENCE AND COMPATIBILITY (EMI / EMC)
Reference Literature Survey - Part 3
Book Review : EMC for Product Designers by Tim Williams

I have been invited to deliver a lecture on Electro Magnetic Interference and Electro Magnetic Compatibility abbreviated as EMI / EMC. I have deciced to speak on the topic of Electromagnetic Pollution (or Electropollution).

This gives me a chance to brush up my rusty knowledge and let me begin by going through a few book reviews I had written earlier when I used to regularly teach this subject at the Post Graduate Level and conduct specialized training on EMI / EMC too during my faculty days at DIAT Deemed University located in the hills of Girinagar near Pune

So, Dear Reader, in case you are interested in this topic of Electromagnetic Pollution and its manifestations, do read on:

This is Part 3 in this series. 

The link to Parts 1 and 2 are given below:

Part 1

Biological Effects of Microwaves by S Baranski and P Czerski 

http://karvediat.blogspot.in/2013/01/book-review-emi-emc-reference.html

Part 2

BIOLOGICAL EFFECTS OF ELECTROMAGNETIC RADIATION BY JOHN M OSEPCHUK (Ed)

http://karvediat.blogspot.in/2013/01/electromagnetic-interference-and.html

EMC for Product Designers by Tim Williams

Book Review by VIKRAM KARVE

A Comprehensive Reference Book for Information Technology, Computer Science, Electronic, Communication and Electrical Engineering Professionals

THE BOOK

Title: EMC for Product Designers
Author: Tim Williams
Elsevier [Fourth Edition, 2007] 498 pages
ISBN – 13: 978-0-75-068170-4
ISBN – 10: 0-750-68170-5
Most of us consider a number of factors, exoteric and esoteric, while designing or selecting our homes and in the configuration of the numerous modern technological devices and domestic appliances, most of them electrical and electronic, especially in location of various rooms and in deciding where to place these appliances.

Recently I saw a programme on TV where a Vastu Shastra expert was advising viewers not only regarding the various aspects of designing and building living environments that are in harmony with the physical and metaphysical forces but also specifying optimal locations and layouts for various electrical and electronic appliances and devices in both residential homes and workplaces.

I listened with intriguing interest as he gave precise directions and specified exact locations for positioning of Televisions, Computers, Communication Devices, Microwave Ovens, Music systems and other appliances, and fascinated by the congruence between principles and aspects of Vastu and Electromagnetic Compatibility ( EMC ) and wondered whether the expert in reality was actually an EMC Design Engineer in addition to being a Vastu Shastra Specialist.

When you design or select or configure your house or office I am sure you consider various aesthetic, architectural, financial, utilitarian, geographical, interior and exterior design and other practical aspects, maybe even incorporate the principles of Vastu Shastra and Feng Shui, but do you give even a fleeting thought to EMC ... ?

In today’s world with the increasing use of electrical, communication, electronic and information technologies we are under continual exposure to Electromagnetic Field (EMF), both inside and outside our homes, in our workplaces and even in the open wherever we go, radiating from radiating from electricity power lines, household wiring, microwave ovens, computers, monitors, televisions, communication devices, cellular phones, electrical, electronic and IT appliances.

“Electro-pollution” is an increasingly serious form of Environment Pollution and merits serious consideration, as much as, if not more than, other well-known forms of pollution.

Electro-pollution seems to be omnipresent. 

Apart from hazards to our health, Electromagnetic Interference (EMI) is detrimental to the proper functioning of most electrical, electronic, IT, ITES, ICT, communication and technology-based systems and may cause malfunctions and even potentially disastrous and fatal accidents.

The book being reviewed – EMC for Product Designers by Tim Williams – is one of the most comprehensive reference books I have read on the subject of the Design Management aspects of Electromagnetic Interference and Electromagnetic Compatibility [EMI / EMC].

The book comprises sixteen chapters arranged in three parts:

1. Legislation and Standards
2. Testing
3. Design

The author lucidly covers most micro and macro aspects of EMC Management in meticulous detail.

The logical sequence of topics, clear diagrams, tables and illustrations facilitate easy understanding of this complicated subject.

The Design Checklist, interesting Case Studies and useful mathematical formulae in the appendices and the extensive bibliography add value to this reference book.

Whilst the earlier chapters provide an excellent understanding of the EMC Standards and the basic theoretical principles of EMI / EMC, the “meat” of the book lies in the chapters on Systems EMC and EMC Management which encapsulate all relevant facets of EMC in a holistic manner.

I wish the author had included a detailed chapter on Electromagnetic Health Hazards and mitigation techniques. Electromagnetic Pollution (Electropollution) the most vital topic concerning all human beings seems to have not been accorded the due importance it deserves and I hope the author presents a more holistic and systemic view of EMC and includes a comprehensive chapter on pertinent aspects of Bio-electromagnetics, Thermal and Athermal EMR Hazards and their mitigation in the next edition.

I commend this book – it is an excellent reference book for Electrical, Electronic, Telecommunication and IT Engineers and Managers, Designers, Students, practicing professionals in the field and a useful addition for all engineering and technical libraries.

Book Review by VIKRAM KARVE

VIKRAM KARVE

Copyright © Vikram Karve 2013

Vikram Karve has asserted his right under the Copyright, Designs and Patents Act 1988 to be identified as the author of this work. 

© vikram karve., all rights reserved.

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About Vikram Karve

A creative person with a zest for life, Vikram Karve is a retired Naval Officer turned full time writer and blogger. Educated at IIT Delhi, IIT (BHU) Varanasi, The Lawrence School Lovedale and Bishops School Pune, Vikram has published two books: COCKTAIL a collection of fiction short stories about relationships (2011) and APPETITE FOR A STROLL a book of Foodie Adventures (2008) and is currently working on his novel and a book of vignettes and an anthology of short fiction. An avid blogger, he has written a number of fiction short stories and creative non-fiction articles on a variety of topics including food, travel, philosophy, academics, technology, management, health, pet parenting, teaching stories and self help in magazines and published a large number of professional  and academic research papers in journals and edited in-house journals and magazines for many years, before the advent of blogging. Vikram has taught at a University as a Professor for 15 years and now teaches as a visiting faculty and devotes most of his time to creative writing and blogging. Vikram Karve lives in Pune India with his family and muse - his pet dog Sherry with whom he takes long walks thinking creative thoughts.

Vikram Karve Academic and Creative Writing Journal: http://karvediat.blogspot.com
Professional Profile Vikram Karve: http://www.linkedin.com/in/karve
Vikram Karve Facebook Page:  https://www.facebook.com/vikramkarve
Vikram Karve Creative Writing Blog: http://vikramkarve.sulekha.com/blog/posts.htm
Email: vikramwamankarve@gmail.com

      

© vikram karve., all rights reserved.

INFORMATION SYSTEMS

Book Review

Title: Information, Systems and Information Systems – making sense of the field

Authors: Peter Checkland and Sue Howell

John Wiley & Sons (1988)

ISBN 0-471-95820-4

  

[Reviewed by Vikram Waman Karve]

   

Information Technology ( IT ) is the buzzword of today. 

IT is ubiquitous; almost everyone is connected with IT in some way or the other. 

A few years ago, till the nineteen eighties, there were courses in Electrical, Electronics, Communications and Telecommunications Engineering and later in Computer Science and Engineering, but now there are dedicated courses in Information Technology, and almost all Engineers, and even others, irrespective of their specializations, are rushing to take up jobs in IT and IT Enabled Services. 

The Management guys have also joined the fray and added a “management” dimension to IT by offering MBA courses in “IT Management”.

What exactly is IT? 

Maybe the phrase “IT” was coined to mark the convergence of two technologies that had been traditionally separate: “Computing” and “Communications” and the confluence of several streams of development including electronics, microelectronics, computer science, telecommunications, software engineering and systems analysis.

There are a large number of books and extensive literature on the content of IT. 

This book is a significant treatise on the context of IT. 

The principal author Peter Checkland is a pioneering researcher in the field of Systems Engineering and Management and has developed breakthrough concepts like Soft Systems Methodology [SSM] and written the seminal classic “Systems Thinking, Systems Practice”. The co-author Sue Holwell has a rich and varied professional experience in systems design and implementation, information strategy and communication networks.

This book has eight chapters arranged in four parts. 

In the first part on “The Field of Information Systems and its Problems” the authors deliberate on the basic concepts pertaining to Information Systems [IS] and Information Technology [IT], distinguish between the “Hard” (objective positivistic scientific) and “Soft” (subjective interpretative) schools of thought in the context of Management Information Systems [MIS], and introduce the reader to the fundamentals of Soft System Methodologies [SSM].

The “meat” of the book is in Part Two whose two chapters elucidate on the application of the developed Information System Management concepts to organizations and describe the “information continuum” – the linkages between data, information and knowledge. Parts Three and Four substantiate these hypotheses with experiential examples from as early as World War II and drives home the point that the evolution and development of the science of Information Systems [IS] owes nothing to computers which did not exist in 1940, makes it clear that IS is not the same as IT, reminds us that computers are a mere means of IS, and cautions us against falling into the trap of “technological determinism” resulting from the prevalent propensity to overly focus on computer-based IT and allow technology to take charge of our actions.

The book is aptly adorned with simple illustrations which facilitate ease of understanding. As the dust jacket says, the book is a work of conceptual cleansing and presents a well-argued account of IS and IT which is both holistic and coherent. I recommend this remarkable book to IT, Engineering and Management students and professionals – reading it will certainly enhance their conceptual understanding of Information Systems and Technology.

   

( Book Review by Vikram Waman Karve )

http://www.linkedin.com/in/karve

http://vikramkarve.sulekha.com

vikramkarve@hotmail.com

vikramkarve@sify.com

 

Book Review: Radar Systems Analysis by David K Barton

Radar Systems Analysis is a comprehensive and cohesive introduction to radar systems design and performance estimation. It offers professionals the knowledge they need to understand, analyze, evaluate, or design radar systems. The book presents accurate detection range equations for realistically estimating radar performance in a variety of practical situations. As radar systems evolve, designers, engineers, and analysts can turn to this book again and again to keep up with the latest advances in radar technology.

This book offers radar engineers all the fundamental and advanced information they need in day-to-day work. Readers will find several lucid chapters on various aspects of radar, such as theory of target detection, theory of radar measurement, description of radar targets, theory of search radar and its signal synthesis and analysis, error analysis, processing of radar data and tracking systems.

The book is divided into seventeen chapters starting with the theory of target detection where the radar echoes and noises are dealt with along with the integration of pulses. Chapter 2, 3 and 4 deals with the radar measurement of range, angle and velocity using the classical radar equation description, and description on RCS and complex targets. Chapter 5, 6, 7 and 8 is dedicated to the search radar and its target detection and measurement, MTI techniques, and synthesis and analysis. Chapter 9 to 14 deals extensively with the track radars which include angle measurement and tracking and its error analysis, range tracking systems, Doppler tracking systems, tracking radar data processing and its acquisition. There are discussions on the survey of propagation effects and multistation radar networks.

This book details practical procedures for search and track radar system testing and evaluation of radar range in difficult environments of combined noise, jamming, and clutter. However, an important topic like radar testing and evaluation gets one lonely chapter with somewhat cursory coverage. The book is substantiated with the adequate references and bibliography along with mathematical approximations for radar beam shape, spectra and waveforms.

Tables on transmission line and receiver input noise temperatures and table on radar range factors for system power change from 0 to 40 db have been provided for appropriate reference and use.

This excellent book summarizes the theory of radar systems and provides the radar engineer with methods and tools for estimating the performance of a wide variety of radars and for synthesizing or selecting radar designs to meet detection and tracking requirements. I recommend this book to all those interested in this fascinating field and Libraries of Technical Educational Institutions.

RADAR - A Book Review

BOOK REVIEW

Here is a rather amusing book review by Prachi Deshmukh, a bright young engineer who works with me. It was written quite some time back and I like her rather droll friendly style and, hence, I have intentionally not edited the review too much, so that the writing retains its original refreshing youthful flavour. So here is the book review E & OE :-

Name of the book: Radar
Authors: P.S. Hall, T.K. Garland-Collins, R.S. Picton and R.G. Lee
Publication: Brassey’s , (UK), 1991
Pages: 170
ISBN: 0 – 08 – 037710 – 6

[Reviewed by Prachi A. Deshmukh]

It was a bright morning, and I was enjoying my first tea of the day. Usually, I do not take tea without having a glance on the newspaper. There were plenty of news showing the fall of the top Indian software companies, the falling share market and there were overflowing columns discussing about the global recession. I was getting somewhat bored by reading them, and suddenly a news attracted me, which was about the bravery of a pilot in USA who saved the life of nearly 160 passengers. The brave man did land the plane in a frozen river to rescue the passengers in the plane and saved it from crash, which could happen because of a bird approaching towards the plane. Hats off to the presence of mind of the pilot! At the same time, we should not forget to say thanks to the radar technology, which had helped the pilot to detect the presence of the approaching bird.

After reading this, I became curious about the RADAR technology. ‘RADAR’ is the abbreviation of ‘Radio Detection and Ranging’. I went to the library in search of the book which will make me familiar with this RADAR technology. There were number of books available there, out of which, I selected one book, which I think was best suitable for a reader who is interested in to know the basic operation of RADAR, but does not have detailed knowledge of electronics or RADAR system, but is interested to know about the modern warfare. The book about which I am talking is ‘Radar’ by P.S. Hall et al, Brassey’s Publication, UK. ‘RADAR’ is the 9th volume of the series ‘Land Warfare: Brassey’s New Battlefield Weapons Systems and Technology Series’.

The content in the book is well arranged in 10 chapters, each having plenty of supporting diagrams, equations as well as photographs. The first chapter introduces us with radar. We enter in the world of radar with knowing the importance of radar, its history, i.e. origin of radar, motivation behind it, its first use in army etc. We also go through the technical history of radar. At the end of the first chapter, we become familiar with the types of radar such as primary and secondary radar, monostatic, bistatic and multistatic radar. The last figure of this chapter shows the electromagnetic spectrum and the radar bands in it.

The chapters 2 to 4 deal with the radar principles and technology. It is advised that the readers who wish to strengthen their fundamentals should study these chapters carefully. For those who are new to this field or want the comprehensive view, all the chapters are recommended. Those who understand the basics but wish to update themselves on the current state of battlefield radars chapter no. 5 to 9 are there.

Chapter 2 is about the ‘Principles of Radar Operation’. This chapter introduces us with the basic principles of radar operation such as basic action of the Pulse Radar Operation, Pulse Repetition Frequency, evaluation of the performance of radar , how to design the antenna, the maximum detection range and the radar equation etc. At the end of the chapter we gain the knowledge about the detection of radar signals, radar resolution, velocity resolution, radar accuracy and how to choose the frequency of radar.

Chapter 3 is an interesting one. Here we become familiar with the Doppler radar, Doppler processing in pulse radars, blind and ambiguous velocity. Besides these concepts, there are some other important radar techniques also, such as methods of target discrimination, Rain Clutter suppression by circular polarization, pulse compression, scanning and tracking radars, synthetic aperture radar. After going through this chapter, we find that we have acquired enough fundamentals to thoroughly understand the radar technology.

The fourth chapter is ‘radar technology’. Here we have to make use of the knowledge which we have gained in the previous chapters. At the beginning of this chapter we have a look on what are radar transmitters and receivers, what is magnetron, Klystron, Travelling wave tube, solid state transmitters etc. Without the knowledge of the components of radar, we can not understand what the system actually is? The common microwave transmission lines such as waveguide, co-axial, line, microstrip, triplate stripline are illustrated in brief. Antennas are the important sense organs for the radars. Here are the different types of antennas such as reflector antennas, adaptive antennas, multiple beam antennas as well as the phase arrays, frequency scanned arrays. Digital processing and displays are also explained in brief. If the displays could have been explained in detail, it would be better.

With chapter 5, we move towards the battlefield surveillance radar. First the authors introduce us with the requirement of the battlefield surveillance radar. Mainly there are two classes of battlefield surveillance radar i.e. Short range battlefield surveillance radar and airborne battlefield surveillance radar. In Short range battlefield (BSR) radar, there are different points which should be taken into consideration while studying BSR. The important points are frequency of operation and resolution. The block diagram is there to understand the working of the BSR. There are some examples of current BSR such as RASIT radar and MSTAR radar. The photographs give us the idea about the systems. The second important type is the airborne battlefield surveillance radar. Here we go through the Stand-Off Radar (SOR) which stand well back and use long range sensors. Again we gain knowledge about the principle of SOR, SOR resolution, target imaging and displays. At the end of the chapter there are two practical systems also.

Chapter 6 is about the weapon locating radars. The purpose of the weapon locating radar is to detect the launch of an enemy projectile or missile and to establish the segment of the trajectory of projectile.

The general technical requirements, principle of back track location provide us with base to understand the fundamentals. Here are some practical systems, recently introduced systems, near future outlook and possible future systems.

Chapter 7 is about the Air Defence Radar. In this chapter the important types such as strategic radars, long range radars, medium range radars and short range radars and surveillance and tracking of each of the type are studied. All the four types are presented very nicely with enough diagrams and photographs.

In chapter 8, there is collection of some other types of battlefield radars. To mention few are: balloon tracking radar, free flight rocket correction radar, unmanned aircraft radar, remotely piloted vehicle tracking radar, tank Automatic defence radar , as well as radar anti–tank homing missiles and projectiles and passive radar homing missiles. At the end of this chapter, we acquire some command on the radar systems.

Chapter 9 is about the electronic warfare. Here the authors have introduced us with the Electronic Warfare (EW). This chapter gives a brief idea about the electronic warfare. Electronic Counter Measures (ECM), Electronic Support Measures (ESM) and Electronic Counter Countermeasures (ECCM), jamming are some of the important concepts of EW. Here we get a brief knowledge of the tactical aspects, antenna systems, and jammers. Comparisons between ESM and radar confrontation, tracking radar and threat borne jammer, tracker and repeater target borne jammer help to make our concepts clear.

Last but not the least, chapter 10, which is the conclusion of the entire exercise. This chapter tells us about the importance of radar in battlefield, as well as it shows us the future of this technology. It includes the comparison of radar and other surveillance and target acquisition methods, the importance of the EW and its impact on radar, the future technical trends, adaptive radar, Artificial intelligence, and future military trends. This chapter is the most important one as far as the warfare is concerned.

For the sake of convenience of the keen reader who wants to see the particular diagrams, there is a chapter wise list of illustration at the beginning of the book.

In simple words, ‘Radar’ is a book which gives us sufficient information of radar systems and makes us familiar with the Electronic Warfare also. This is a good example of a technical book. This book can be used by the students for reference who are studying Radar for academic purpose, as well as this will prove simple and helpful for those readers who do not have detailed knowledge of electronics or radar system. But reader must be from technical background and should have at least the basic knowledge of physics and electronics.

EMBEDDED SYSTEM DESIGN - A Useful Book

Book: Embedded System Design - A Unified Hardware / Software Introduction
Authors: Frank Vahid, Tony Givargis
Publication: John Wiley and Sons (Asia) Pte Ltd, Singapore, 2002
ISBN 9971-51-405-2
Pages: 324.

[Reviewed by Prachi A. Deshmukh and Vikram Karve]

Once, there was a conversation going on between three ladies. They were discussing on something very seriously. Each of them was telling her own experience and others were listening to the speaker very carefully. They were neither discussing about some TV serial, nor about the latest fashions. Their topic was regarding cooking. (But they were not discussing culinary recipes!). The three ladies were from three different generations – the first an 80 years old Granny, the second her 56 years old mother and the third the 28 years old daughter. They were discussing how the kitchen has been changed. Conclusion of their discussion was that, now cooking is a task of few minutes. Mixer, food processor, microwave oven, dishwasher etc. are there waiting for your orders!

Not only in kitchen, but everywhere one can see things are becoming easier and simpler. Those who are born after 1980s can experience the changes happening around themselves. Now there is no need to make your hands panic by washing the clothes. Washing machine will do it for you!

Do you want to listen to music of your choice? An MP3 player can store thousands of songs of your choice. If you want to convert your beautiful moments into sweet memories, then digital camera is there for your help.

Are you planning to go for shopping? No need to carry money with you. Credit card will maintain your account.

All these examples look unrelated to each others, but there is some relation in them. ATM, barcode scanner, cell-phone, digital camera, fax machine, home alarm system all are totally different from each others but they do have one thing common in them. All of them are embedded systems. Now the question arises ’What does an embedded system actually mean?’

In simple words, Embedded System is a computing system which does a specifically focused job. It’s nearly any computing system other than a desktop computer. We can not be unaware of it because embedded systems are part of our day to day life. We find them almost everywhere.

That’s why one must study about embedded systems, especially if you are aspiring to be an Electronics, Communications, Computer Engineer or IT Professional. For those who really want to know about embedded systems, a good book to start off with is ‘Embedded System Design- A Unified Hardware/ software Introduction ’ by Frank Vahid and Tony Givargis.

The book is actually an introductory book which makes us familiar with the basics of embedded systems, the hardware for them, the software, peripherals, memory and interfacing. This book is also helpful for those students who are going to take more specialized courses. To understand this book one needs the basic knowledge of electronics, flowcharts and algorithms.

The book shows its usefulness and applications starting from the cover itself. The picture on the cover shows all the applications in our day-to-day life which we find in home as well as outside our homes. A simple picture tells us how important to study the embedded systems.

The content in the book is divided into 11 Chapters. The first chapter introduces us with the basics of embedded systems. We become familiar with the Optimizing Design Metrics, processor technology, IC technology, design technology and trade offs.

In second chapter we learn about custom single purpose processors: Hardware. We learn about the combinational logic, sequential logic, custom single purpose processor design, RT level custom single purpose processor Design and the optimizing custom single purpose processors. If the reader knows about the transistors, logic gates and flowcharts then it will be easier to understand this chapter.

In third chapter the authors introduce us with the General Purpose Processors: Software. Here we learn the basic architecture of the general purpose processor, its operation, developing environment, ASIPs, General Purpose processor Design and about the selection of a processor.

In fourth chapter we study the Peripherals of standard Single-Purpose Processors like Timer, Counters, Watchdog Timers, UART, PWM, LCD controllers, Keypad controllers, Stepper motor controllers, ADC and RTC.

There are different types of memory like ROM, PROM, OTOROM, EPROM, EEPROM, FRAM, RAM, SRAMDRAM, PSRAM NVRAM etc. We learn different types of memories as well as cache memory and MMU in the fifth chapter.

In sixth chapter we study the different types of interfacings to the processors as well as arbitration, multiple Bus architectures and advanced communication principles. Here we come to know about the different types of protocols.

Digital camera is an important and interesting example of embedded systems. In seventh chapter this example is explained very briefly. Here we learn about the requirements as well as the design of an embedded system very detail. Chapter no 8 and 9 are about the state machine and concurrent process models as well as the control systems.

Chapter 10 introduces us with the IC technology. Here we learn about the VLSI IC technology, ASIC IC technology and PLD IC technology. This chapter teaches about the IC technologies briefly.

In last chapter of the book, chapter 11 we learn about the techniques like Automation, Verification, Reuse, Design Process Models. At the end of this chapter we find the book summary. It gives us summary of the entire book in few words.

In appendix A the website is given which includes important information regarding the embedded systems. Also included are chapter wise lab resources. As embedded system is combination of both - hardware and software, it is very important to perform the practical experiments to understand the concepts.

This book is not just a simple basic book but is adequate for a complete course in embedded systems. The authors have maintained a smooth flow throughout the book. The language is easy to understand. One special feature of this edition of the book is that it has been designed specially for the students in developing countries.

An ideal textbook, this book may prove even more useful to understand the importance of embedded systems if some more applications of embedded systems were illustrated. Maybe further editions can be made more attractive by adding the photographs of the examples of embedded systems.

The summary at the end of every chapter give the important part of each chapter in brief. The review questions are helpful to prepare for the subject. The References and further reading are useful for those interested in a more detailed study of the subject.

We feel that this book may be extremely useful for students, engineers, technologists and professionals interested in the fascinating field of Embedded Systems.

Book Review by PRACHI DESHMUKH and VIKRAM KARVE

vikramkarve@sify.com

INFORMATION TECHNOLOGY SYSTEMS

Book Review by Vikram Karve


Title: Information, Systems and Information Systems – making sense of the field

Authors: Peter Checkland and Sue Howell

John Wiley & Sons (1988)

ISBN 0-471-95820-4

Information Technology [IT] is the buzzword of today.

IT is ubiquitous; today you are connected with IT in some way or the other, and everyone seems to be rushing to join the IT bandwagon.

A few years ago, till the nineteen eighties, there were courses in Electrical, Electronics, Communications and Telecommunications Engineering and later in Computer Science and Engineering, but now there are dedicated courses specifically in Information Technology, and almost all Engineers, and even pure scientists and others, irrespective of their specializations, are rushing to take up jobs in IT and IT Enabled Services.

The Management guys have also joined the fray and added a “management” dimension to IT by offering MBA courses in “IT Management”.

What exactly is IT?

Maybe the phrase Information Technology or “IT” was coined to mark the convergence of two technologies that had been traditionally separate: “Computing” and “Communications” and the confluence of several streams of development including electronics, microelectronics, computer science, telecommunications, software engineering and systems analysis.

There are a large number of books and extensive literature on the content of Information Technology.

This book is a significant treatise on the context of Information Technology.

The principal author Peter Checkland is a pioneering researcher in the field of Systems Engineering and Management and has developed breakthrough concepts like Soft Systems Methodology [SSM] and written the seminal classic “Systems Thinking, Systems Practice”. The co-author Sue Holwell has a rich and varied professional experience in systems design and implementation, information strategy and communication networks.

This book has eight chapters arranged in four parts.

In the first part on “The Field of Information Systems and its Problems” the authors deliberate on the basic concepts pertaining to Information Systems [IS] and Information Technology [IT], distinguish between the “Hard” (objective positivistic scientific) and “Soft” (subjective interpretative) schools of thought in the context of Management Information Systems [MIS], and introduce the reader to the fundamentals of Soft System Methodologies [SSM].

The “meat” of the book is in Part Two whose two chapters elucidate on the application of the developed Information System Management concepts to organizations and describe the “information continuum” – the linkages between data, information and knowledge.

Parts Three and Four of the book substantiate these hypotheses with experiential examples from as early as World War II and drives home the point that the evolution and development of the science of Information Systems [IS] owes nothing to computers which did not exist in 1940, makes it clear that IS is not the same as IT, reminds us that computers are a mere means of IS, and cautions us against falling into the trap of “technological determinism” resulting from the prevalent propensity to overly focus on computer-based IT and allow technology to take charge of our actions.

The book is aptly adorned with simple illustrations which facilitate ease of understanding.

As the dust jacket says, the book is a work of conceptual cleansing and presents a well-argued account of IS and IT which is both holistic and coherent.

I recommend this remarkable book to Information Technology, Engineering and Management Students and Professionals – reading it will certainly enhance their conceptual understanding of Information Systems and Technology.

[Book Review by Vikram Karve]

http://www.linkedin.com/in/karve

http://vikramkarve.sulekha.com

vikramkarve@hotmail.com

vikramkarve@sify.com

ELECTRO VAASTU

BOOK REVIEW


Title: EMC for Product Designers
Author: Tim Williams
Elsevier [Fourth Edition, 2007] 498 pages
ISBN – 13: 978-0-75-068170-4
ISBN – 10: 0-750-68170-5



Most of us consider a number of factors, exoteric and esoteric, while designing [or selecting] our homes and in the configuration of the numerous modern technological devices and domestic appliances, most of them electrical and electronic, therein.Recently I saw a programme on TV where a Vastu Shastra expert was advising viewers not only regarding the various aspects of designing and building living environments that are in harmony with the physical and metaphysical forces but also specifying optimal locations and layouts for various electrical and electronic appliances and devices in both residential homes and workplaces. I listened with intriguing interest as he gave precise directions and specified exact locations for positioning of Televisions, Computers, Communication Devices, Microwave Ovens, Music systems and other appliances, and fascinated by the congruence between principles and aspects of Vastu and Electromagnetic Compatibility [EMC] and wondered whether the expert in reality was actually an EMC Design Engineer in addition to being a Vastu Shastra Specialist.

When you design or select or configure your house or office I am sure you consider various aesthetic, architectural, financial, utilitarian, geographical, interior and exterior design and other practical aspects, maybe even incorporate the principles of Vastu Shastra and Feng Shui, but do you give even a fleeting thought to EMC?

In today’s world with the increasing use of electricity and electronic technology we are under continual exposure to Electromagnetic Field [EMFs], both inside and outside our homes and workplaces, radiating from radiating from electricity power lines, household wiring, microwave ovens, computers, monitors, televisions, communication devices, cellular phones, electric and electronic appliances and “Electropollution” is an increasingly serious form of Environment Pollution and merits serious consideration. Apart from hazards to our health, Electromagnetic Interference [EMI] is detrimental to the proper functioning of most electrical, electronic, IT, ITES, communication and technology-based systems and may cause malfunctions and even potentially disastrous and fatal accidents.

The book being reviewed – EMC for Product Designers by Tim Williams – is one of the most comprehensive reference books I have read on the subject. Comprising sixteen chapters arranged in three parts [Legislation and Standards, Testing and Design] the author lucidly covers most micro and macro aspects of EMC Management in meticulous detail. The logical sequence of topics, clear diagrams, tables and illustrations facilitate easy understanding of this complicated subject. The Design Checklist, interesting Case Studies and useful mathematical formulae in the appendices and the extensive bibliography add value to the reference book.

Whilst the earlier chapters provide an excellent understanding of the EMC Standards and the basic theoretical principles of EMI / EMC, the “meat” of the book lies in the chapters on Systems EMC and EMC Management which encapsulate all relevant facets of EMC in a holistic manner. I wish the author had included a detailed chapter on Electromagnetic Health Hazards and mitigation techniques. This vital topic concerning all of us humans seems to have not been accorded the due importance it deserves and I hope the author includes a comprehensive chapter on pertinent aspects in the next edition.

I commend this book – it is an excellent reference book for designers, students, practising professionals in the field and a useful addition for all engineering and technical libraries.



[Book Review by VIKRAM WAMAN KARVE]


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ELECTROMAGNETIC COMPATIBILTY REFERENCE BOOK

A Comprehensive Reference Book for IT, Electronic, Telecom and Electrical Engineering and Design Professionals


Title: EMC for Product Designers
Author: Tim Williams
Elsevier [Fourth Edition, 2007] 498 pages
ISBN – 13: 978-0-75-068170-4
ISBN – 10: 0-750-68170-5



Most of us consider a number of factors, exoteric and esoteric, while designing [or selecting] our homes and in the configuration of the numerous modern technological devices and domestic appliances, most of them electrical and electronic, therein.

Recently I saw a programme on TV where a Vastu Shastra expert was advising viewers not only regarding the various aspects of designing and building living environments that are in harmony with the physical and metaphysical forces but also specifying optimal locations and layouts for various electrical and electronic appliances and devices in both residential homes and workplaces.

I listened with intriguing interest as he gave precise directions and specified exact locations for positioning of Televisions, Computers, Communication Devices, Microwave Ovens, Music systems and other appliances, and fascinated by the congruence between principles and aspects of Vastu and Electromagnetic Compatibility [EMC] and wondered whether the expert in reality was actually an EMC Design Engineer in addition to being a Vastu Shastra Specialist.

When you design or select or configure your house or office I am sure you consider various aesthetic, architectural, financial, utilitarian, geographical, interior and exterior design and other practical aspects, maybe even incorporate the principles of Vastu Shastra and Feng Shui, but do you give even a fleeting thought to EMC?

In today’s world with the increasing use of electrical, communication, electronic and information technologies we are under continual exposure to Electromagnetic Field [ EMFs ], both inside and outside our homes, in our workplaces and even in the open wherever we go, radiating from radiating from electricity power lines, household wiring, microwave ovens, computers, monitors, televisions, communication devices, cellular phones, electrical, electronic and IT appliances.

“Electro-pollution” is an increasingly serious form of Environment Pollution and merits serious consideration, as much as, if not more than, other well-known forms of pollution.

Electro-pollution seems to be omnipresent. Apart from hazards to our health, Electromagnetic Interference [EMI] is detrimental to the proper functioning of most electrical, electronic, IT, ITES, communication and technology-based systems and may cause malfunctions and even potentially disastrous and fatal accidents.

The book being reviewed – EMC for Product Designers by Tim Williams – is one of the most comprehensive reference books I have read on the subject of the Design Management aspects of Electromagnetic Interference and Electromagnetic Compatibility [EMI / EMC].

The book comprises sixteen chapters arranged in three parts [Legislation and Standards, Testing and Design] the author lucidly covers most micro and macro aspects of EMC Management in meticulous detail.

The logical sequence of topics, clear diagrams, tables and illustrations facilitate easy understanding of this complicated subject.

The Design Checklist, interesting Case Studies and useful mathematical formulae in the appendices and the extensive bibliography add value to this reference book.

Whilst the earlier chapters provide an excellent understanding of the EMC Standards and the basic theoretical principles of EMI / EMC, the “meat” of the book lies in the chapters on Systems EMC and EMC Management which encapsulate all relevant facets of EMC in a holistic manner.

I wish the author had included a detailed chapter on Electromagnetic Health Hazards and mitigation techniques. This most vital topic concerning all of us humans seems to have not been accorded the due importance it deserves and I hope the author presents a more holistic and systemic view of EMC and includes a comprehensive chapter on pertinent aspects of Bio-electromagnetics, Thermal and Athermal EMR Hazards and their mitigation in the next edition.

I commend this book – it is an excellent reference book for Electrical, Electronic, Telecommunication and IT Engineers and Managers, Designers, Students, practising professionals in the field and, with the increasing awareness and compliance requirements of EMC Standards worldwide, this book will prove a valuable addition to the shelnves of engineering and technical libraries.



[EMC for Product Designers - Book Review by VIKRAM KARVE]


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http://vikramkarve.sulekha.com/

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vikramkarve@hotmail.com

Information Systems

Book Review by Vikram Karve

Title: Information, Systems and Information Systems – making sense of the field
Authors: Peter Checkland and Sue Howell
John Wiley & Sons (1988)
ISBN 0-471-95820-4


Information Technology [IT] is the buzzword of today.

IT is ubiquitous; today you are connected with IT in some way or the other, and everyone seems to be rushing to join the IT bandwagon.

A few years ago, till the nineteen eighties, there were courses in Electrical, Electronics, Communications and Telecommunications Engineering and later in Computer Science and Engineering, but now there are dedicated courses specifically in Information Technology, and almost all Engineers, and even pure scientists and others, irrespective of their specializations, are rushing to take up jobs in IT and IT Enabled Services.

The Management guys have also joined the fray and added a “management” dimension to IT by offering MBA courses in “IT Management”.

What exactly is IT?

Maybe the phrase Information Technology or “IT” was coined to mark the convergence of two technologies that had been traditionally separate: “Computing” and “Communications” and the confluence of several streams of development including electronics, microelectronics, computer science, telecommunications, software engineering and systems analysis.

There are a large number of books and extensive literature on the content of Information Technology. This book is a significant treatise on the context of Information Technology.

The principal author Peter Checkland is a pioneering researcher in the field of Systems Engineering and Management and has developed breakthrough concepts like Soft Systems Methodology [SSM] and written the seminal classic “Systems Thinking, Systems Practice”. The co-author Sue Holwell has a rich and varied professional experience in systems design and implementation, information strategy and communication networks.

This book has eight chapters arranged in four parts. In the first part on “The Field of Information Systems and its Problems” the authors deliberate on the basic concepts pertaining to Information Systems [IS] and Information Technology [IT], distinguish between the “Hard” (objective positivistic scientific) and “Soft” (subjective interpretative) schools of thought in the context of Management Information Systems [MIS], and introduce the reader to the fundamentals of Soft System Methodologies [SSM].

The “meat” of the book is in Part Two whose two chapters elucidate on the application of the developed Information System Management concepts to organizations and describe the “information continuum” – the linkages between data, information and knowledge.

Parts Three and Four of the book substantiate these hypotheses with experiential examples from as early as World War II and drives home the point that the evolution and development of the science of Information Systems [IS] owes nothing to computers which did not exist in 1940, makes it clear that IS is not the same as IT, reminds us that computers are a mere means of IS, and cautions us against falling into the trap of “technological determinism” resulting from the prevalent propensity to overly focus on computer-based IT and allow technology to take charge of our actions.

The book is aptly adorned with simple illustrations which facilitate ease of understanding. As the dust jacket says, the book is a work of conceptual cleansing and presents a well-argued account of IS and IT which is both holistic and coherent.

I recommend this remarkable book to Information Technology, Engineering and Management Students and Professionals – reading it will certainly enhance their conceptual understanding of Information Systems and Technology.



[Book Review by Vikram Karve]

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