SEMINAR ON Fractal Robots

1. INTRODUCTION
The birth of every technology is the result of the quest for
automation of some form of human work. This has led to many inventions
that have made life easier for us. Fractal Robot is a science that
promises to revolutionize technology in a way that has never been
witnessed before.
The principle behind Fractal Robots is very simple. You take some
cubic bricks made of metals and plastics, motorize them, put some
electronics inside them and control them with a computer and you get
machines that can change shape from one object to another. Almost
immediately, you can now build a home in a matter of minutes if you

SEMINAR ON FRACTAL IMAGE COMPRESSION

SEMINAR-FRACTAL-IMAGE-COMPRESSION (INTRODUCTION)
            The subject of  this  work  is  image  compression  with  fractals. Today  JPEG  has  become  an  industrial  standard  in  image  compression. Further  researches  are  held  in  two  areas, wavelet  based  compression  and  fractal  image  compression. The  fractal  scheme  was  introduced  by  Michael F Barnsley  in  the  year  1945.His  idea  was  that  images  could  be  compactly  stored  as  iterated  functions  which  led  to  the  development  of  the  IFS  scheme  which  forms  the  basis  of  fractal  image  compression. Further  work  in  this  area  was  conducted  by  A.Jacquin, a  student  of  Barnsley  who  published  several  papers  on  this  subject. He  was  the  first  to  publish  an  efficient  algorithm  based  on  local  fractal  system.

Seminar tips


Outline of a typical presentation The first slide has the title, the date of the paper and/or the talk, and your affiliation. If you have a co-author, this is the time to make that clear.
Try to provide a perspective (a puzzle, an empirical regularity, an historical example, a casual observation, a curious gap in the literature, etc.) that you can use as a "hook" to get your audience's attention.
Give an outline of the presentation. It’s not necessary to read from the slide each of the steps of your talk (e.g., literature review, model, data, results, conclusion)--most of those present in the audience can read very well without your help. However, if you want to emphasize a particular part of your talk (e.g.. "I really want to get to the results so I'll skip quickly over the model during my talk. For those interested, the details are contained in my paper anyhow"), point this out right away.
Don't spend too much time on the literature review. The point of the review is to put your paper in perspective. Avoid getting into a long argument about whether you've cited the right group of papers or whether you have misrepresented a literature. You want to talk about your own work, not someone else's.
Present your main contributions right away. It's extremely important that you emphasize your contribution and distinguish what you've done that adds to the literature. You may want to repeat your list of contributions at the end of the talk, but don't try to keep the audience in suspense! Let them know your contribution immediately. This helps the audience focus on how to assess your paper and means that even those in the audience who leave early will have a good idea of what you want them to take away from your talk. 
If you have a model in your paper that is involved and difficult to follow, try to present a stripped down version in the presentation that you can use to develop the intuition for the main findings. Then you can say that in the paper you show that the intuition extends to a richer setting. 
If you put up a slide with an equation, make sure that you read through it so that the audience can follow the notation that you are using. If it's not standard (e.g., "F is a production function with inputs of capital and labor") try to give an economic interpretation of the equation. 
If you put up a graph, make sure that it's clear what's on the two axes and that you describe what the graph demonstrates. 
If you put up a table, make sure that you take one entry and explain clearly what it means in detail and then briefly indicate how to read the remaining entries.
You should have some planned 'slack' in your talk. That is material that you don't plan to cover but that you can include if for some reason you receive fewer or briefer questions than usual. Also, there may be parts of the talk where you anticipate that some audiences will want additional clarification and/or detail. Have it ready, but don't plan to use it unless it comes up in the talk.
Always keep your eyes on the time remaining. If you start to fall behind in your planned pace you should try to adjust your talk by eliminating the least important remaining parts of your talk. Always aim to finish a few minutes early.
End with your conclusion slide. If you have started or plan to begin related research, mention it. Then prepare to kick back and think beyond your paper if that's what the audience wants.




1). Memorizing - this is absolutely the worst way to keep track of material. People are preoccupied with trying to remember the words to say and not the ideas behind the words (or with the audience). As a result, normal voice inflection disappears. With memorizing, mental blocks become inevitable. With memorizing it is not a matter of "will" you forget; it's a matter of WHEN!
2). Reading from complete text - Listening to someone read a speech or presentation is hated by most people. People say, "If that's all they were going to do is read their speech, I could have read it myself." I'm sure many of us have experienced this at least once while attending a conference or two. Below are some reasons why I believe people read poorly:
3). Using Notes - This is the most common way for remembering material. Using notes is better than reading since the speaker can have normal voice inflection and make more effective eye contact. If your notes are on the lectern, you probably won't move very far from them. If notes are in your hand, you probably won't gesture very much.
4).Using Visual Aids As Notes - Simple visual aids can effectively serve as headings and subheadings. Speak to the heading. Say what you want to say and move on. If you forget something, that's okay; the audience will never know unless you tell them.
Practice creating just a few meaningful headings to use and practice using only these headings as your "cues". This will take practice, but practicing using only these few words will force you to better internalize your speech.
10 tips to take a seminar
A speech needs time to grow. Prepare for weeks, sleep on it, dream about it and let your ideas sink into your subconscious. Ask yourself questions, write down your thoughts, and keep adding new ideas. As you prepare every speech ask yourself the following questions.
In one concise sentence, what is the purpose of this speech?
1) Who is the audience? What is their main interest in this topic?
2) What do I really know and believe about this topic as it relates to this audience?
3) What additional research can I do?
4) What are the main points of this presentation?
5) What supporting information and stories can I use to support each of my main points?
6) What visual aids, if any, do I need?
7) Do I have an effective opening grabber?
8) In my final summary, how will I plan to tell them "What's In It For Me?"
9) Have I polished and prepared the language and words I will use?
10) Have I taken care of the little details that will help me speak more confidently?




Method
1) Please communicate clearly with your audience in this area - your presentation should demonstrate that you have evaluated the scientific merits or faults (as discussed in this course) of the research you are presenting, at least for Round 1 (where you present on ascientific paper)
2) For Round 2, please present the results of your project (either the 3 or 9 credit honors project or guided readings) in a way that makes it clear you have developed one or more hypotheses, deduced predictions from it/them, and tested it/them. If you are doing guided readings, you can present your work by beginning with the question or hypothesis that motivated the readings you did. Then, describe the scientific results you found in those readings and whether the results supported your initial hypothesis.
Posture and organization
1) Be straightforward and logical, think of it as telling a story - you want a less expert audience to be able to follow along
2) Be certain to start with a brief introductory summary of what you will cover (outline!!!)
3) Provide sufficient background so that the audience can appreciate the significance of the paper (who cares???)
4) Use visual aids as appropriate, flow-charts can be very helpful when explaining methods and experimental designs
5) At the close of your seminar be certain to summarize the main conclusions and provide the audience with the most significant point(s) from the seminar* (don't leave the audience wondering why they sat through the seminar)
Clarity
1) Speak clearly and 'speak up' - project your voice without shouting at your audience
2) State the objectives, hypotheses and rationale of study right at the start of the talk
3) Be certain to relate the seminar to the larger context (Can we predict something better because this study was conducted? Do have better knowledge of a basic pattern in nature?)
4) Your seminar should be understandable to a general audience (remember: you have read paper or done the research - the audience won't have the same degree of preparation as you)
5) Be certain that you understand the work yourself and do not use a word that you could not explain! (avoid "bafflegab", especially if you don't get it yourself).

Fluorescent Multi-layer Disc


Requirements for removable media storage devices (RMSDs) used with personal computers have changed significantly since the introduction of the floppy disk in 1971. At one time, desktop computers depended on floppy disks for all of their storage requirements. Even with the advent of multigigabyte hard drives, floppy disks and other RMSDs are still an integral part of most computer systems, providing.

Transport between computers for data files and software
Backup to preserve data from the hard dive
A way to load the operating system software in the event of a hard failure.

            Data storage devices currently come in a variety of different capacities, access time, data transfer rate and cost per Gigabyte. The best overall performance figures are currently achieved using hard disk drives (HDD), which can be integrated into RAID systems (reliable arrays of inexpensive drives) at costs of $10 per GByte (1999). Optical disc drives (ODD) and tapes can be configured in the form of jukeboxes and tape libraries, with cost of a few dollars per GByte for the removable media. However, the complex mechanical library mechanism serves to limit data access time to several seconds and affects the reliability adversely.

            Most information is still stored in non-electronic form, with very slow access and excessive costs (e.g., text on paper, at a cost of $10 000 per GByte).

            Some RMSD options available today are approaching the performance, capacity, and cost of hard-disk drives. Considerations for selecting an RMSD include capacity, speed, convenience, durability, data availability, and backward-compatibility. Technology options used to read and write data include.

Magnetic formats that use magnetic particles and magnetic fields.

Optical formats that use laser light and optical sensors.

            Magneto-optical and magneto-optical hybrids that use a combination of magnetic and optical properties to increase storage capacity.

            The introduction of the Fluorescent Multi-layer Disc (FMD) smashes the barriers of existing data storage formats. Depending on the application and the market requirements, the first generation of 120mm (CD Sized) FMD ROM discs will hold 20 - 100 GigaBytes of pre -recorded data on 12 — 30 data layers with a total thickness of under 2mm.In comparison, a standard DVD disc holds just 4.7 gigabytes. With C3D’s (Constellation 3D) proprietary parallel reading and writing technology, data transfer speeds can exceed 1 gigabit per second, again depending on the application and market need.

Firewire

FireWire, originally developed by  Apple Computer, Inc is a cross platform implementation of the high speed  serial data bus –define by the  IEEE 1394-1995 [FireWire 400],IEEE 1394a-2000 [FireWire 800]  and IEEE  1394b standards-that move large amounts of data between computers and peripheral  devices. Its features simplified cabling, hot swapping and transfer speeds of upto 800 megabits per second. FireWire is a high-speed serial input/output (I/O) technology for connecting peripheral devices to a computer or to each other. It is one of the fastest peripheral standards ever developed and now, at 800 megabits per second (Mbps), its even faster .Based on Apple-developed technology, FireWire was adopted in 1995 as an official industry standard (IEEE 1394) for cross-platform peripheral connectivity. By providing a high-bandwidth, easy-to-use I/O technology, FireWire inspired a new generation of consumer electronics devices from many companies, including Canon, Epson, HP, Iomega, JVC, LaCie, Maxtor, Mitsubishi, Matsushita (Panasonic), Pioneer, Samsung, Sony and Texas Instruments. Products such as DV camcorders, portable external disk drives and MP3 players like the Apple iPod would not be as popular as they are today with-out FireWire. FireWire has also been a boon to professional users because of the high-speed connectivity it has brought to audio and video production systems. In 2001, the Academy of Television Arts & Sciences presented Apple with an Emmy award in recognition of the contributions made by FireWire to the television industry. Now FireWire 800, the next generation of FireWire technology, promises to spur the development of more innovative high-performance devices and applications. FireWire800 (an implementation of the IEEE 1394b standard approved in 2002) doubles the throughput of the original technology, dramatically increases the maximum distance of FireWire connections, and supports many new types of cabling. This technology brief describes the advantages of FireWire 800 and some of the applications for which it is ideally suited.

FRAM


A ferroelectric memory cell consists of a ferroelectric capacitor and a MOS transistor. Its construction is similar to the storage cell of a DRAM. The difference is in the dielectric properties of the material between the capacitor's electrodes. This material has a high dielectric constant and can be polarized by an electric field. The polarisation remains until it gets reversed by an opposite electrical field. This makes the memory non-volatile. Note that ferroelectric material, despite its name, does not necessarily contain iron. The most well-known ferroelectric substance is BaTiO3.
A Ferroelectric memory cell consists of a ferroelectric capacitor and a MOS transistor. Its construction is similar to the storage cell of a DRAM. The difference is in the dielectric properties of the material between the capacitor's electrodes. This material has a high dielectric constant and can be polarized by an electric field. The polarisation remains until it gets reversed by an opposite electrical field. This makes the memory non-volatile.
Data is read by applying an electric field to the capacitor. If this switches the cell into the opposite state (flipping over the electrical dipoles in the ferroelectric material) then more charge is moved than if the cell was not flipped. This can be detected and amplified by sense amplifiers. Reading destroys the contents of a cell which must therefore be written back after a read. This is similar to the precharge operation in DRAM, though it only needs to be done after a read rather than periodically as with DRAM refresh.
FRAM is found mainly in consumer devices and because of its low power requirements, could also be used in devices that only need to activate for brief periods. FRAM allows systems to retain information even when power is lost, without resorting to batteries, EEPROM, or flash. Access times are the same as for standard SRAM, so there's no delay-at-write access as there is for EEPROM or flash. In addition, the number of write cycles supported by the FRAM components is nearly unlimited—up to 10 billion read/writes. FRAM combines the advantages of SRAM - writing is roughly as fast as reading, and EPROM - non-volatility and in-circuit programmability

Face Recognition Technology


The information age is quickly revolutionizing the way transactions are completed. Everyday actions are increasingly being handled electronically, instead of with pencil and paper or face to face. This growth in electronic transactions has resulted in a greater demand for fast and accurate user identification and authentication. Access codes for buildings, banks accounts and computer systems often use PIN's for identification and security clearences.
Using the proper PIN gains access, but the user of the PIN is not verified. When credit and ATM cards are lost or stolen, an unauthorized user can often come up with the correct personal codes. Despite warning, many people continue to choose easily guessed PIN's  and passwords: birthdays, phone numbers and social security numbers. Recent cases of identity theft have hightened the nee for methods to prove that someone is truly who he/she claims to be.
Face recognition technology may solve this problem since a face is undeniably connected to its owner expect in the case of identical twins. Its nontransferable. The system can then compare scans to records stored in a central or local database or even on a smart card.

Bhima's son like Gadotkach-like skeleton found. The discovery was made by National Geographic Team

Bhima's son like Gadotkach-like skeleton found. The discovery was made by National Geographic Team




source Incredible pics

Extreme Ultraviolet Lithography


Silicon has been the heart of the world's technology boom for nearly half a century, but microprocessor manufacturers have all but squeezed the life out of it. The current technology used to make microprocessors will begin to reach its limit around 2005. At that time, chipmakers will have to look to other technologies to cram more transistors onto silicon to create more powerful chips. Many are already looking at extreme-ultraviolet lithography (EUVL) as a way to extend the life of silicon at least until the end of the decade.

Potential successors to optical projection lithography are being aggressively developed. These are known as "Next-Generation Lithographies" (NGL's). EUV lithography (EUVL) is one of the leading NGL technologies; others include x-ray lithography, ion-beam projection lithography, and electron-beam projection lithography. Using extreme-ultraviolet (EUV) light to carve transistors in silicon wafers will lead to microprocessors that are up to 100 times faster than today's most powerful chips, and to memory chips with similar increases in storage capacity.

Extreme Programming


Extreme Programming (XP) is actually a deliberate and disciplined approach to software development. About six years old, it has already been proven at many companies of all different sizes and industries worldwide. XP is successful because it stresses customer satisfaction. The methodology is designed to deliver the software your customer needs when it is needed. XP empowers software developers to confidently respond to changing customer requirements, even late in the life cycle. This methodology also emphasizes teamwork. Managers, customers, and developers are all part of a team dedicated to delivering quality software. XP implements a simple, yet effective way to enable groupware style development.
XP improves a software project in four essential ways; communication, simplicity feedback, and courage. XP programmers communicate with their customers and fellow programmers. They keep their design simple and clean. They get feedback by testing their software starting on day one. They deliver the system to the customers as early as possible and implement changes as suggested. With this foundation XP programmers are able to courageously respond to changing requirements and technology. XP is different. It is a lot like a jig saw puzzle. There are many small pieces. Individually the pieces make no sense, but when combined together a complete picture can be seen. This is a significant departure from traditional software development methods and ushers in a change in the way we program.
If one or two developers have become bottlenecks because they own the core classes in the system and must make all the changes, then try collective code ownership. You will also need unit tests. Let everyone make changes to the core classes whenever they need to. You could continue this way until no problems are left. Then just add the remaining practices as you can. The first practice you add will seem easy. You are solving a large problem with a little extra effort. The second might seem easy too. But at some point between having a few XP rules and all of the XP rules it will take some persistence to make it work. Your problems will have been solved and your project is under control. It might seem good to abandon the new methodology and go back to what is familiar and comfortable, but continuing does pay off in the end. Your development team will become much more efficient than you thought possible. At some point you will find that the XP rules no longer seem like rules at all. There is a synergy between the rules that is hard to understand until you have been fully immersed. This up hill climb is especially true with pair programming, but the pay off of this technique is very large. Also, unit tests will take time to collect, but unit tests are the foundation for many of the other XP practices so the pay off is very great.
more

Energy transmission system for an artificial heart- leakage inductance compensation


The artificial heart now in use, like the natural heart it is designed to replace , is a four –chambered device for pumping blood. such electrical circulatory assist devices such as total artificial heart or ventricular assist devices generally use a brushless dc motor as their pump They require 12–35 W to operate and can be powered by a portable battery pack and a dc–dc converter.
It would be desirable to transfer electrical energy to these circulatory assist devices transcutaneously without breaking the skin. This technique would need a power supply which uses a transcutaneous transformer to drive  use,the motor for the circulatory assist devices. The secondary of this transformer would be implanted under the skin, and the primary would be placed on top of the secondary, external to the body. The distance between the transformer windings would be approximately equal to the thickness of the patient’s skin, nominally between 1–2 cm. This spacing cannot be assumed constant; the alignment of the cores and the distance between them would certainly vary during the operation.
A transformer with a large (1–2 cm) air gap between the primary and the secondary has large leakage inductances. In this application, the coupling coefficient k ranges approximately from 0.1 to 0.4. This makes the leakage inductances of the same order of magnitude and usually larger than the magnetizing inductance. Therefore, the transfer gain of voltage is very low, and a significant portion of the primary current will flow through the magnetizing inductance. The large circulating current through the magnetizing inductance results in poor efficiency.
A dc–dc converter employing secondary-side resonance has been reported to alleviate the problems by lowering the impedance of the secondary side using a resonant circuit .Although the circulating current is lowered, the transfer gain of the voltage varies widely as the coupling coefficient varies .So, advantages characteristics are reduced as the coupling coefficient deviates at a designated value.
In this paper, compensation of the leakage inductances on both sides of the transcutaneous transformer is presented. This converter offers significant improvements over the converter presented in the following aspects.

·         High-voltage gain with relative small variation with respect to load change as well as the variation of the coupling coefficient of the transformer—this reduces the operating frequency range and the size of the transcutaneous transformer is minimized.

·         Higher efficiency—minimize circulating current of magnetizing inductance and zero-voltage switching (ZVS) of the primary switches, and zero-current switching (ZCS) of the secondary rectifier diodes improves the efficiency significantly, especially at the secondary side (inside the body).

More ece and eee topics

Embedded System in Automobiles


We read in newspapers that a doctor had successfully transplanted a  cardiac pacemaker in his patient’s chest by sitting around 200kilometres away. Also we know about driverless cars that could take us to the destiny  by using its inbuilt navigation systems. Embedded microprocessors or  micro controllers are the brain behind these.
An embedded system is any device controlled by instructions stored  on a chip. These devices are usually controlled by a micro processor that executes the instructions stored on a  read only memory(ROM) chip.
The software for the embedded system is called firmware. The firmware will be written in assembly language for time or resource critical operations or using higher level languages like C or embedded C. The software will be simulated using micro code simulators for the target processor. Since  they are supposed to perform only specific tasks, these programs are stored in read only memories(ROMs).Moreover they may need no or minimal inputs from the user, hence  the user interface like monitor, mouse and large keyboard etc,may be  absent.
Embedded systems are computer systems that monitor, respond to, or control an external environment. This environment is connected to the computer system through sensors, actuators, and other input-output interfaces. It may consist of physical or biological objects of any form and structure. Often humans are part of the connected external    world, but a wide range of other natural and artificial objects, as well as animals are also possible.
Embedded systems are also known as real time systems since they respond to an input or event and produce the result within a guaranteed   time period. This time period can be few microseconds to days or months. The computer system must meet various timing and other constraints that are imposed on it by the real-time behavior of the external world to which it is interfaced. Hence comes the name real time. Another  Name for many of these systems is reactive systems, because their primary purpose is to respond to or react to signals from their environment. A real time computer system may be a component of a larger system in which it is embedded; reasonably such a computer component is called an embedded system.
Embedded systems control engine management systems in automobiles, monitor home heating systems and regulate the quiet operation and the even distribution of laundry in washing machines. They are the heart of toys like Furby and Tamagotchi, of golf balls that cannot get lost and of gas pumps at gasoline stations that advertise nearby restaurants on video. Above all, state-of-the art communications equipment like WAP mobile telephones, MP3 players, set-top boxes and Net devices would not be possible without these powerful miniature brains.
Applications and examples of real time systems are ubiquitous and proliferating, appearing as part of our commercial, government, military, medical, educational, and cultural infrastructures. Included are:

  • Vehicle systems for automobiles, subways, aircraft, railways and ships.

  • Traffic control for highways, airspace, railway tracks and shipping lanes.


  • Process control for power plants, chemical plants and consumer products such as soft drinks and beer.

  • Medical systems for radiation therapy, patient monitoring and defibrillation

  • Military uses such as firing weapons, tracking and command and control.

  • Manufacturing systems with robots.

  • Telephone, radio and satellite communications.

  • Computer games.

  • Multi media systems that provide text, graphic, audio and video interfaces.

  • House holds systems for monitoring and controlling appliances.

  • Building managers that controls such entities as heat, light, Doors and elevators.

Electronics Meet Animal Brains


Until recently, neurobiologists have used computers for simulation, data collection, and data analysis, but not to interact directly with nerve tissue in live, behaving animals. Although digital computers and nerve tissue both use voltage waveforms to transmit and process information, engineers and neurobiologists have yet to cohesively link the electronic signaling of digital computers with the electronic signaling of nerve tissue in freely behaving animals.
Recent advances in microelectromechanical systems (MEMS), CMOS electronics, and embedded computer systems will finally let us link computer circuitry to neural cells in live animals and, in particular, to reidentifiable cells with specific, known neural functions. The key components of such a brain-computer system include neural probes, analog electronics, and a miniature microcomputer. Researchers developing neural probes such as sub- micron MEMS probes, microclamps, microprobe arrays, and similar structures can now penetrate and make electrical contact with nerve cells with out causing significant or long-term damage to probes or cells.
Researchers developing analog electronics such as low-power amplifiers and analog-to-digital converters can now integrate these devices with micro- controllers on a single low-power CMOS die. Further, researchers developing embedded computer systems can now incorporate all the core circuitry of a modern computer on a single silicon chip that can run on miniscule power from a tiny watch battery. In short, engineers have all the pieces they need to build truly autonomous implantable computer systems.
Until now, high signal-to-noise recording as well as digital processing of real-time neuronal signals have been possible only in constrained laboratory experiments. By combining MEMS probes with analog electronics and modern CMOS computing into self-contained, implantable microsystems, implantable computers will free neuroscientists from the lab bench.

E-mail Alert System


Today we are witnessing fast changes in telecommunications computer and telephone ate two technologies that have made significant revolution in communications, but for technological reasons they were developed separately. Fast development of communication and computer technology lead to the merging of the public switched telephone network (PSTN) and the internet to become global information network of integrated services. Internet services ate becoming a more important way of information exchange and communication, turning telephony and mobile telephony toward internet services.
One of the deficiencies of internet services over fixed and mobile telephony is the availability of service: internet services are available only when connected. The results of our research carried out before the development of the e-mail Alert (EMA) System show that internet users receive on average five to six e-mails every day and 82 percent of these users in the course of their internet connection check their mail box first. Thus there is a clear demand for the development of e-mail alerting systems. EMA system is computer telephony integration (CTI) application that integrates advantages of telephony and the internet by connecting e-mail and phone services. The EMA system will inform users of the arrival of new e-mail messages, which is convenient if  you don’t  allow  e-mail servers access from outside. On the other side are internet or service providers with a large number of users.  To satisfy both groups of requirements, two versions of EMA system are proposed. The enterprise version is developed in order to allow e-mail server access inside intranet environments, while the public version is designed for public service providers. The EMA system is implemented on Win 32   platform using c and c++ programming languages HTML, ASP, java Script and VB Script are used for the Web interface to overcome deference in Web browsers.

Embedded DRAM


Even though the word DRAM has been quite common among us for many decades, the development in the field of DRAM was very slow. The storage medium reached the present state of semiconductor after a long scientific research. Once the semiconductor storage medium was well accepted by all, plans were put forward to integrate the logic circuits associated with the DRAM along with the DRAM itself. However, technological complexities and economic justification for such a complex integrated circuit are difficult hurdles to overcome. Although scientific breakthroughs are numerous in the commodity DRAM industry, similar techniques are not always appropriate when high- performance logic circuits are included on the same substrate. Hence, eDRAM pioneers have begun to develop numerous integration schemes. Two basic integration philosophies for an eDRAM technology are:

  • Incorporating memory circuits in a technology optimized  for low-Cost high performance logic.
  • Incorporating logic circuits in a technology optimized for high- Density low performance DRAM.
This seemingly subtle semantic difference significantly impacts mask count, system performance, peripheral circuit complexity, and total memory capacity of eDRAM products. Furthermore, corporations With aggressive commodity DRAM technology do not have expertise in the design of complicated digital functions and are not able to assemble a design team to complete the task of a truly merged DRAM-logic product. Conversely, small application specific integrated circuit (ASIC) design corporations, unfamiliar with DRAM- specific elements and design practice, cannot carry out an efficient merged logic design and therefore mar the beauty of the original intent to integrate. Clearly, the reuse of process technology is an enabling lhetor en route to cost-effective eDRAM technology. By the same. account, modern circuit designers should be familiar with the new elements of eDRAM technology so that they can efficiently reuse DRAM-specific structures and elements in other digital functions. The reuse of additional electrical elements is a methodology that will make eDRAM more than just a memory’ interconnected to a few million Boolean gates.
In the following sections of this report the DRAM applications and architectures that are expected to form the basis of eDRAM products are reviewed. Then a description of elements found in generic eDRAM technologies is presented so that non-memory-designers can become familiar with eDRAM specific elements and technology. Various technologies used in eDRAM are discussed. An example of eDRAM is also discussed towards the end of the report.
It can be clearly seen from this report that embedded DRAM macro extends the on-chip capacity to more than 40 MB, allowing historically off-chip memory to be integrated on chip and enabling System-on-a-Chip (SoC) designs. ‘By these memory integrated, on chips, the bandwidth is increased to a high , extend. A highly integrated DRAM approach also simplifies board design, hereby reducing overall system cost and time to market. Even, more importantly, embedding DRAM enables higher bandwidth by allowing a wider on-Chip buss and saves power by eliminating DRAM I/O.

Electronics seminar topics

1. Real Time Speech Translation
2. Cellular Neural Network
3. CorDECT
4. Augmented reality.
6. Wavelet Video Processing Technology
7. Enhanced data rates for gsm evolution edge.
8. Terahertz Waves And Applications
9. Smart Pixel Arrays
10. Fibre Optic Communication~
11. Molecular Electronics
12. Jseg-a method for unsupervised segmentation of color texture regions in images and video.
13. Asynchronous Transfer Mode
14. Molecular Finger printing
15. FinFET Technology
16. Crusoe
17. SATRACK
18. Power of Grid Computing
19. Lightning Protection Using LFAM
20. Extreme ultraviolet lithography*
21. Optical Burst Switching
22. Spintronics
23. GSM Security And Encryption
24. Augmented reality.
25. Nanotechnology
26. Eye gaze human ? computer interface.
27. Laser Communications
28. Optic Fibre Cable
29. Personal Area Network0
30. Surge Protection In Modern Devices
31. EDGE
32. Artificial Intelligence Substation Control
33. Speed Detection of moving vehicle using speed cameras
34. Microelectronic Pills~
35. FireWire
36. Search For Extraterrestrial Intelligence
37. Modern Irrigation System Towards Fuzzy
38. RAID
39. Robotics
40. Rapid Prototyping
41. Lightning Protection Using LFAM
43. MOCT
44. Convergence Of Microcontrollers And DSPs
45. SATRACK
46. Free Space Laser Communications
47. Cellular Radio
48. The Thought Translation Device (Ttd)
49. Fractal Robots
50. Quantum dots
51. Voice recognition based on artificial neural networks.
52. Cellular geolocation.
53. VT Architecture
54. A Basic Touch-Sensor Screen System
55. Digital Audio Broadcasting
57. Robotics
58. Optical Communications in Space
59. Compact peripheral component interconnect (CPCI)
60. Power over Ethernet
61. Class-D Amplifiers
62. Terrestrial Trunked Radio
63. LWIP
64. Optic Fibre Cable
65. Extreme Ultraviolet Lithography
66. Silicon Photonics
68. POwer Consumption Minimisation in Embeded Systems
69. Nanorobotics
70. The making of quantum dots.
71. Cellular Positioning
72. Extreme Ultraviolet Lithography
73. MIMO Wireless Channels: Capacity and Performance Prediction
74. Wireless Application Protocol
75. Optical Networking and Dense Wavelength Division
76. Artificial immune system.
77. BiCMOS technology
78. An Efficient Algorithm for iris pattern
79. Radio Frequency Identification (RFID)
80. Narrow Band & Broad Band ISDN
81. Fluorescent Multi-layer Disc
82. VoCable
83. Cellular technologies and security.
84. Packet Switching chips
85. Digital Light Processing
86. Landmine Detection Using Impulse Ground Penetrating Radar
87. Line-Reflect-Reflect Technique
88. EUV Lithorgaphy
89. Digital Audio's Final Frontier-Class D Amplifier
90. Wideband Sigma Delta PLL Modulator
91. Mobile Virtual Reality Service
92. Ultrasonic Trapping In Capillaries For Trace-Amount Biomedical Analysis.
93. Sensors on 3D Digitization
94. Frequency Division Multiple Access
95. Remote Accessible Virtual Instrumentation Control Lab

seminars

1. Quadrics network
2. Worldwide Inter operatibility for Microwave Access
3. Fpga offloads dsp?s.
4. Real-Time Obstacle Avoidance
5. Light emitting polymers
6. E-Commerce
7. Extreme ultraviolet lithography*
8. Low Power UART Design for Serial Data Communication
9. Multi threading microprocessors
10. Passive Millimeter-Wave
11. Magnetic Resonance Imaging
12. Microelectronic Pills~
13. Multisensor Fusion and Integration
14. Molecular Electronics
15. Money Pad, The Future Wallet
16. Treating Cardiac Disease With Catheter-Based Tissue Heating
17. Adaptive Multipath Detection4
18. Heliodisplay
19. Virtual Reality~
20. Real Time System Interface
21. Wireless LED
22. Real-Time Image Processing Applied To Traffic
23. Class-D Amplifiers
24. Radiation Hardened Chips
25. Time Division Multiple Access
26. Embryonics Approach Towards Integrated Circuits
27. Cellular Digital Packet Data (Cdpd)
28. EC2 Technology
29. Crusoe Processor
30. Swarm intelligence & traffic Safety
31. Software Radio3
32. Integrated Power Electronics Module
33. Power System Contingencies
34. e-Paper Display
35. VISNAV
36. Push Technology
37. Distributed Integrated Circuits
38. Electronics Meet Animal Brains
39. Navbelt and Guidicane
40. Orthogonal Frequency Division Multiplexing
41. Organic LED
42. Optical networking
43. Tunable Lasers
44. Code Division Duplexing
45. Satellite Radio TV System
46. Code Division Multiple Access
47. Project Oxygen
48. Robotic balancing..
49. Integer Fast Fourier Transform
50. Daknet
51. Cryptography~
52. 3- D IC's
53. Continuously variable transmission (CVT)
54. Fibre Optic Communication~
55. AC Performance Of Nanoelectronics
56. Continuously variable transmission (CVT)
57. Intel express chipsets.
58. Military Radars
59. Moletronics- an invisible technology
60. Significance of real-time transport Protocol in VOIP
61. Acoustics
62. Testing cardiac diseased based on catheter based tissue heating
63. Cellular Through Remote Control Switch
64. Touch Screens
65. Implementation Of Zoom FFT in Ultrasonic Blood Flow Analysis
66. FRAM
67. The Bionic Eye
68. Synchronous Optical Network
69. Satellite Radio
70. Nanotechnology
71. Fault Diagnosis Of Electronic System using AI
72. Asynchronous Chips
73. E-Nose
74. Holographic Data Storage
75. MILLIPEDE7
76. Crystaline Silicon Solar Cells
77. Space Robotics
78. Guided Missiles
79. Synchronous Optical Networking
80. Cyberterrorism
81. Plasma Antennas
82. Welding Robots
83. Laser Communications
84. Architectural requirements for a DSP processer
85. High-availability power systems Redundancy options
86. Utility Fog
87. GMPLS
88. DSP Processor
89. e-governance.
90. Smart Pixel Arrays
91. The mp3 standard.
92. Resilient Packet Ring RPR.
93. Fast convergemce algorithms for active noise control in vehicles
94. Thermal infrared imaging technology
95. HAAPS
96. ISO Loop magnetic couplers
97. Evolution Of Embedded System
98. Guided Missiles
99. Iris Scanning
100. QoS in Cellular Networks Based on MPT
101. Vertical Cavity Surface Emitting Laser
102. Driving Optical Network Evolution
103. Home Audio Video Interpretability (HAVi)
104. Sensotronic Brake Control
105. Cruise Control Devices
106. Zigbee - zapping away wired worries
107. Global Positioning System~
108. Passive Millimeter-Wave
109. High-availability power systems Redundancy options
110. Light emitting polymers
111. Advanced Mobile Presence Technology
112. Resilient packet ring rpr.
113. Electronic Road Pricing System~
114. CorDECT
115. Artificial neural networks based Devnagri numeral recognitions by using S.O.M
116. Dig Water
117. Fusion Memory
118. Military Radars
119. Satellite Radio TV System
120. Landmine Detection Using Impulse Ground Penetrating Radar
121. low Quiescent current regulators
122. Stream Processor
123. Wireless communication
124. Object Oriented Concepts
125. Internet Protocol Television
126. RTOS ? VXWORKS2
127. MOCT
128. VLSI Computations
129. Terahertz Transistor
130. Integer Fast Fourier Transform
131. Surface Mount Technology
132. The Vanadium Redox Flow Battery System5
133. Terrestrial Trunked Radio
134. Fuzzy Logic
135. Dual Energy X-ray Absorptiometry
136. Cellular technologies and security.
137. Automatic Number Plate Recognition
138. Turbo codes.
139. CRT Display
140. HVAC
141. Ultra wide band technology.
142. GPRS
143. Optical Switching
144. VCSEL
145. Organic Light Emitting Diode
146. Orthogonal Frequency Division Multiplexing
147. Time Division Multiple Access
148. Elliptical curve cryptography ECC
149. Service Aware Intelligent GGSN
150. Space Time Adaptive Processing
151. Wireless LED
152. Blast
153. Radio Astronomy
154. Quantum cryptography
155. Organic Electronic Fibre
156. Fundamental Limits Of Silicon Technology
157. Digital Audio's Final Frontier-Class D Amplifier
158. Bluetooth based smart sensor networks
159. Optical Camouflage
160. Artifical Eye
161. Digital Imaging~
162. RFID Radio Frequency Identification

E-Intelligence


Organizations have, over the years, successfully employed business intelligence tools like OLAP and data warehousing to improve the supply of business information to end users for cross industry applications like finance and customer relationship management, and in vertical markets such as retail, manufacturing, healthcare, banking, financial services, telecommunications, and utilities. In the recent years, the Internet has opened up an entirely new channel for marketing and selling products. Companies are taking to e-business in a big way. The issue facing end users as organizations deploy e-business systems is that they do have not had the same business intelligence capabilities available to them in e-business systems as they do in the traditional corporate operating environment. This prevents businesses from exploiting the full power of the Internet as a sales and marketing channels.
As a solution, vendors are now developing business intelligence applications to capture and analyze the information flowing through e-business systems, and are developing Web-based information portals that provide an integrated and personalized view of enterprise-wide business information, applications, and services. This advanced business intelligence systems are called E-intelligence systems

Coffee Analysis With An Electronic Nose


ELECTRONIC Noses (EN), in the broadest meaning, are instruments that analyze gaseous mixtures for discriminating between different (but similar) mixtures and, in the case of simple mixtures, quantify the concentration of the constituents. ENs consists of a sampling system (for a reproducible collection of the mixture), an array of chemical sensors, Electronic circuitry and data analysis software. Chemical sensors, which are the heart of the system, can be divided into three categories according to the type of sensitive material used: inorganic crystalline materials (e.g. semiconductors, as in MOSFET structures, and metal oxides); organic materials and polymers; biologically derived materials.
The use of ENs for food quality analysis tasks is twofold. ENs is normally used to discriminate different classes of similar odour-emitting products. In particular ENs already served to distinguish between different coffee blends and between different coffee roasting levels. On the other hand, ENs can also be used to predict sensorial descriptors of food quality as determined by a panel (often one generically speaks of correlating EN and sensory data). ENs can therefore represent a valid help for routine food analysis.
The combination of gas chromatography and mass spectroscopy (GC-MS) is by far the most popular technique for the identification of volatile compounds in foods and beverages. This is because the separation achieved by the gas chromatographic technique is complemented by the high sensitivity of mass spectroscopy and its ability to identify the molecules eluting from the column on the basis of their fragmentation patterns. Detection limits as low as 1 ppb (parts per billion) are frequently reached. The main drawbacks of the approach are, however, the cost and complexity of the instrumentation and the time required to fully analyze each sample (around one hour for a complete chromatogram). Comparatively, ENs are simpler, cheaper devices. They recognize a fingerprint, that is global information, of the samples to be classified. For food products, the sensory characteristics determined by a panel are important for quality assessment. While man still is the most efficient instrument for sensorial evaluation, the formation of a panel of trained judges involves considerable expenses.
Commercial coffees are blends, which, for economic reasons, contain (monovarietal) coffees of various origins. For the producers the availability of analysis and control techniques is of great importance. There exists a rich literature on the characterization of coffee using the chemical profile of one of its fractions, such as the headspace of green or roasted beans or the phenolic fraction. In the literature up to 700 diverse molecules have been identified in the headspace. Their relative abundance depends on the type, provenance and manufacturing of the coffee. It is to be noticed that none of these molecules can alone be identified as a marker. On the contrary one has to consider the whole spectrum, as for instance the gas chromatographic profile.

Electrical and chemical diagnostics of transformer insulation


The main function of a power system is to supply electrical energy to its customers with an acceptable degree of reliability and quality. Among many other things, the reliability of a power system depends on trouble free transformer operation. Now, in the electricity utilities around the world, a significant number of power transformers are operating beyond their design life. Most of these transformers are operating without evidence of distress. The same situation is evident in Australia. In PowaaerLink Queensland (PLQ), 25% of the power transformers were more than 25 years old in 1991. So priority attention should be directed to research into improved diagnostic techniques for determining the condition of the insulation in aged transformers.
The insulation system in a power transformer consists of cellulosic materials (paper, pressboard and transformerboard) and processed mineral oil. The cellulosic materials and oil insulation used in transformer degrade with time. The degradation depends on thermal, oxidative, hydrolytic, electrical and mechanical conditions which the transformer experienced during its lifetime.
The condition of the paper and pressboard insulation has been monitored by (a) bulk measurements (dissolved gas analysis (DGA) insulation resistance (IR), tanö and furans and (b) measurements on samples removed from the transformer (degree of polymerization (DP) tensile strength). At the interface between the paper and oil in the transformer, interfacial polarization may occur, resulting in an increase in the loss tangent and dielectric loss. A DC method was developed for measuring the interfacial polarization spectrum for the determination of insulation condition in aged transformers.
This paper makes contributions to the determination of the insulation condition of transformers by bulk measurements and measurements on samples removed from the transformer. It is based on a University of Queensland research project conducted with cooperation from the PLQ and the GEC-Alsthom.
Most of the currently used techniques have some drawbacks. Dissolved gas analysis requires a data bank based on experimental results from failed transformers for predicting the fault type. When transformer oil is rep or refurbished, the analysis of furans in the refurbished oil may not show any trace of degradation, although the cellulose may have degraded significantly. DP estimation is based on a single-point viscosity measurement. Molecular weight studies by single-point viscosity measurements are of limited value when dealing with a complex polymer blend, such as Kraft paper, particularly in cases where the molecular weight distribution of the paper changes significantly as the degradation proceeds. In these instances, a new technique, gel permeation chromatography (GPC), is likely to be more useful than the viscosity method, because it provides information about the change in molecular weight and molecular weight distribution. Investigation of the GPO technique has been included in this research to assess its effectiveness in determining the condition of insulation.
Conventional electrical properties (dissipation factor and breakdown strengths) of cellulosic materials are not significantly affected by ageing .so very little recent research has been directed to electrical diagnostic techniques, in this research project, thorough investigations were also undertaken of the conventional electrical properties, along with interfacial polarization parameters of the cellulosic insulation materials. The interfacial phenomena are strongly influenced by insulation degradation products, such as polar functionalities, water etc. The condition of the dielectric and its degradation due to ageing can be monitored by studying the rate and process of polarization and can be studied using a DC field. Furthermore, this is a non-destructive diagnostic test.
A retired power transformer (25 MVA, l1/132 kV) and several distribution transformers were used for the experimental work. The results from these transformers will be presented and an attempt will be made to correlate the electrical and chemical test results. The variation of the results through the different locations in a power transformer will be discussed with reference to their thermal stress distribution. Accelerated ageing experiments were conducted to predict the long term insulation behaviour and the results are presented in the accompanying paper.