Idhaya – Engineering and Technology Blog

Engine Fundamentals

Atoms are the building blocks of the world. Any substance that is made up of only one kind of atom is called an element. Atoms of different elements can connect up with each other. This process is called a chemical reaction. The burning of fuel in an automobile engine is a chemical reaction. We normally refer to this chemical reaction as combustion. Automobile fuels are made up mostly of two elements hydrogen and carbon. These are therefore called hydrocarbons. During complete combustion in the engine, these two elements unite with a third element, the gas oxygen. Each oxygen atom connects up with two hydrogen atoms to form water. Each carbon atom connects up with two oxygen atoms to produce the gas carbon dioxide.

During combustion of gasoline in the engine, the burning gases get very hot. Their temperatures may go as high as 3319OC. This high temperature produces the pressure that makes the engine run and produce power.

With ideal, or perfect, combustion, all of the hydrogen and all of the carbon in the gasoline would combine with oxygen to form harmless water and carbon dioxide. However in the engine we do not get ideal combustion. Instead some of the gasoline does not burn. Also some only partly burns producing carbon monoxide. The unburned gasoline and partly burned gasoline cause pollution of the air as they exit through the tail pipe with the exhaust gases. This is the reason that cars are equipped with anti pollution devices called emission controls. These devices reduce the amount of pollutants coming from the engine.

The concepts involved are expansion of solids with heat. Any solid like the metal in an engine piston, expands and gets larger as its temperature increases. However the piston must be free to move up and down in the cylinder, even if it gets very hot. The piston is designed so that it does not expand too much. If it did it would stick in the cylinder and the engine would be damaged.

Fluids also expand with heat. The rules are pressure increases with increasing temperature. The rule works the other way too. The second rule is temperature increases with increasing pressure. Both rules are at work in the engine cylinders. First a mixture of air and gasoline vapor is taken into the cylinder. Then the piston moves up to compress this mixture. Compressing the mixture – increasing the pressure on the mixture – makes it hot. Next, the compressed mixture is ignited, or set on fire. It burns producing a very high temperature. The high temperature causes high pressure. The high pressure pushes the piston down. This motion is carried to the car wheels so that they turn and the car moves.

Other concepts involved are the thermometer, the thermostat, gravity, atmospheric pressure, vacuum and humidity. The atmospheric factors affecting combustion in the engine are changes in temperature, atmospheric pressure, and humidity. They affect the way the fuel burns and the power output of the engine. Accurate testing of the engines requires that all readings be corrected to account for temperature, atmospheric pressure and humidity.

Internal Combustion Engines

Automotive engines are called internal combustion (IC) engines because the fuel that runs them is burned internally, or inside the engines. There are two types, reciprocating and rotary. By reciprocating we mean moving up and down or, back and forth. Almost all automotive engines are the reciprocating type. In these engines pistons move up and down, or reciprocate in cylinders. This type of engine is called a piston engine.

In this way scientific and engineering principles help us understand how engines work.

Software Development

Software development is the set of activities that results in software products. Software development may include research, new development, modification, reuse, re-engineering, maintenance, or any other activities that result in software products.Especially the first phase in the software development process may involve many departments, including marketing, engineering, research and development and general management.

The term software development may also refer to computer programming, the process of writing and maintaining the source code.

White Shaarks is a custom software development firm located in Mohali (Punjab). We offer full cycle custom software programming services, from product idea, offshore software development to outsourcing support and enhancement. White Shaarks employs a large pool of software engineers coming from different backgrounds. WS able to balance product development efforts and project duration to your business needs.

Over the years WS have managed to build a solid team of software outsourcing professionals that come from various backgrounds and expand the creative potential of the company. The expertise that they posses embraces a wide range of custom programming skills involving the latest and most effective development technologies, such as .NET (ASP.NET, C#, VB.NET), XML and many more. This to a great extent defines the quality and reliability of the custom software applications that we develop.White Shaarks deliver custom application programming services to end customers and we provide offshore software outsourcing services for other IT companies. Our competence and experience ensure that we deliver excellent services and products to our customers.

Market Research

A market study is made to identify a potential customer’s need. This process is also known as market research. Here, the already existing need and the possible and potential needs that are available in a segment of the society are studied carefully. The market study is done based on a lot of assumptions.

Research and Development

Once the Market Research is carried out, the customer’s need is given to the Research & Development division (R&D) to conceptualize a cost-effective system that could potentially solve the customer’s needs in a manner that is better than the one adopted by the competitors at present. Once the conceptual system is developed and tested in a hypothetical environment, the development team takes control of it. The development team adopts one of the software development methodologies that is given below, develops the proposed system, and gives it to the customer.

Maintenance

Maintaining and enhancing software to cope with newly discovered problems or new requirements can take far more time than the initial development of the software. Not only may it be necessary to add code that does not fit the original design but just determining how software works at some point after it is completed may require significant effort by a software engineer. About 60% of all software engineering work is maintenance, but this statistic can be misleading. A small part of that is fixing bugs. Most maintenance is extending systems to do new things, which in many ways can be considered new work.

Expert Knowledge

Our expert knowledge focuses on key development areas: software requirements development & management, process change & adoption, and estimation & project planning. Working with SPC will enable your software development organization to transform its practices and generate increased business value.

Software Configuration Management

Development teams need the ability to collaborate in real-time to accelerate the build and release process. With a collaborative development process supported by Telelogic® Synergy™, software development teams have a centrally managed software configuration management solution providing stakeholders with visibility to all levels of the development process.

Mechanical 3D models using CAD tools brings life and transparency into the design goals with respect to clash detection, clearance, aesthetics, tolerance aspects and helps communicate design ideas more effectively.

Mechanical design services deal with conception and design of mechanical systems. From the concept to detailed design, and on to drawing production, mechanical design products accelerate core activities of product development.

Mechanical Engineering and Design has significantly benefited today’s refined mechanical and engineering designers. Although. Some of the generally cited benefits include improved accuracy, efficiency along with easy interference inspection, better layout, labeling and dimensioning. No matter how CAD system is used, it is very much capable of handling the varied requirements of mechanical and electrical designers.

Mechanical Engineering and Design Services include:

• Mechanical Design Products
• Mechanical Drawings
• HVAC Design
• HVAC system Design
• HVAC duct Design
• Plumbing Design
• Printed Circuit Board (PCB) layout Design

Our mechanical engineering services specializes in the design of mechanical system, dies and molding and mechanical component for residential, commercial, institutional, retail and cultural services and facilities. Mechanical engineers utilize the core principles in addition to other information in the field to design.

3D or Three Dimension means giving a 3D effect to any image. The image is going to have depth, height, and width. By using 3D Modeling you can improve your graphics & gives a better look to your website. 3D modeling or 3D animation is applicable where it is necessary to suggest your professional image.

Mechanical 3D modeling is an art of crafting a methodical wire-frame demonstration of any 3D (three-dimensional) object. With CAD tools, 3D models could be displayed as an image in print using computer simulation. CAD Modeling is usually the first step in a rapid prototyping (RP) system. The conventional approach to CAD modeling is through engineering drawings. A designer inputs dimensions and interconnects lines (along with other basic shapes) using CAD software like AutoCAD, Pro-E, 3D-max.etc to create a virtual 3D model.

info@mechanical3dmodelling.com – feel free to email us for any queries related to mechanical product design and mechanical engineering services.<br>

For more information on Mechanical Engineering Design Services Please visit us at http://www.mechanical3dmodelling.com/

Of all the areas of Internet Marketing, Search Engine Optimization is the most misunderstood, and potentially the most important to your marketing efforts. There are millions upon millions of pages of web content out there — you can work hard, build a great site, and then be totally lost in the shuffle. SEO is important. It’s also a very complex process that requires patience, careful planning and a long-term approach.

If you’re just getting started with:

Selecting an SEO firm

Trying to start a search engine campaign on your own

Reviewing your current SEO efforts

…read on. This article should provide you with a high-level review of the SEO process, dispel a few SEO myths, and help you understand legitimate optimization strategies.

What is Search Engine Optimization?

Search Engine Optimization, or SEO, defies easy definition. But here’s a short version:

Search Engine Optimization
Using keyword analysis and other legitimate practices to gain the highest possible search engine and directory rankings, under a given key phrase, for a given URL.

Every SEO professional in the world just cringed, so I’ll break this definition down a bit and hopefully prevent a hail of angry e-mails:

Keyword Analysis is the process of mining keyword search data to find the best balance between the keywords you need and the best potential search niche. More on this later.

Search Engine means an automated search engine. ‘Search Engines’ include Google, AlltheWeb.com, Yahoo (powered by Google plus their own directory information), AOL Search, Ask Jeeves and MSN Search. A search engine obtains its results from ’spiders’ or ‘bots’ — small programs that come to your web site read it in much the same way you would: By reading the content on a page, and then moving from page to page via links. A directory, on the other hand, is built at least in part by human beings reading sites and other information and deciding where each site fits into the directory structure. Yahoo’s directory area and Open Directory are both examples of directories.

Ranking is the numeric rank reflecting your position in the results list when someone performs a search on a particular set of keywords.

Highest Possible means getting as close to number one as you can. Sometimes you just can’t get that number one spot. Maybe someone else has a 400-page web site solely dedicated to the key phrase for which you’re attempting to optimize. Or maybe they’re paying a fortune in advertising. That’s life, sometimes…

Key Phrase is the keyword or set of keywords someone types into the little ’search’ field in Google or Alta Vista or any other search engine.

A URL is the address of one page on your site. Most search engines display keyword search results and provide a link directly to the page most relevant to those results, rather than your home page. It’s very, very important to keep that in mind when you build and optimize your site.

Legitimate Practices is a pet peeve of mine. A true search engine optimization campaign will not use practices such as page or content cloaking, redirects, or lists of links (so-called ‘link farms’) but relies on good coding practices, well-written content, steady link popularity work and site features that will be every bit as valuable for site visitors as for search engine ranking. Anything less is a short-term fix that will likely reduce your rankings more often than increase them.

So, the long version of the definition would be:

Search Engine Optimization
Using keyword analysis, good coding practices, well-written copy, link popularity analysis and careful site organization to move a web page as close to the number one search results position as possible for a given key phrase, in both search engines and directories.

Hey, that’s not so bad after all. But how do you get started? First, you separate reality from myth…

SEO Urban Legends

There are quite a few SEO myths out there. Here are my favorites:

The Keywords META Tag Matters. Mostly wrong. Only Inktomi pays any attention to the keywords meta tag. You should do something basic, but don’t bother putting in keywords that aren’t supported by your page content.

Search Engines can read Flash, images and video. Sorry, and Ford isn’t selling a flying car yet, either. Search engines can read one thing: Text. Anything else, while perfectly legitimate as a design tool, will not help your ranking. And relying too heavily on Flash or images may reduce your site’s visibility. Google is one partial exception — they can read some links in Flash, but still have very limited ability to read Flash content.

Mirroring my site in multiple locations will improve ranking. Actually, just the opposite. Duplication of content will generally have no effect or, worse, reduce your ranking in major search engines. Most search engines now have rules against this form of ’spam’ and may reduce your ranking or ban your site altogether.

‘Doorway’ pages improve ranking. Pages that have lots of keywords but then quickly redirect to the main site will not help you in major search engines, such as Google. And, if someone catches you and reports you to Google or the other search engine, you may be banned altogether. A ‘landing’ or ‘bridge’ page, though, that’s designed to be as useful for users as for search engines, and does not redirect the user, can help by providing keyword-rich content that’s genuinely worthwhile.

Firms promising to get me #1 rankings in 10,000 search engines for $99.95 can help. I alternate between tooth-grinding and hysterical laughter when I see these ads. First, there aren’t 10,000 search engines. Actually, there are probably 10-20 you should really worry about. Getting listed in the other thousand or so is largely a waste of time. Second, no one can guarantee any ranking in any search engine for a specific keyword. Period. And finally, the price is less than half the cost to get an express submission in a single directory (Yahoo). Chances are anyone trying to get you to spend the $99.95 is operating a ‘link farm’ where they list dozens, or hundreds, of sites. While they won’t hurt your ranking, they won’t help, either. To learn more about how to choose an SEO firm, check out Google’s article: http://www.google.com/intl/mr/webmasters/seo.html.

Firms charging me more money and guaranteeing a #1 ranking on Google can help. This is the latest SEO scam. I can get you a number one ranking on Google, too, as long as I get to pick the keyword or can get you ranked under a fairly unique company name. But no one, and I mean no one can guarantee a #1 rank under a specific keyword. Even Google says so.

Forget the myths — if an offer seems too good to be true, it is. The truth is that search engines are now almost savvy enough to read your pages like a human being would, so anything that will drive away a typical site visitor will also probably reduce your ranking. Things that will increase your search engine ranking include:

Well-written content

Good, clean HTML code

Useful, relevant TITLE tags

Useful, relevant DESCRIPTION tags

Relevant, appropriate links from other web sites

There are some basic steps that, well executed, will do more to increase your page rank than an ocean of snake oil.

The SEO Campaign Process

A typical SEO campaign starts with keyword analysis, and then emphasizes insuring your site doesn’t impede search engine bots and follows up with ongoing link and traffic analysis. If you like pretty pictures, here’s one:

 What’s a Bot?
A ‘bot’ is a program used by a search engine to read the content of your site into a directory. I mentioned this briefly in ‘What is Search Engine Optimization?’ above. Keep up, now….

Step 1: Keyword Analysis. Ah, keywords. If you say the right word enough times on your site, you’ll get that coveted #1 spot, right? Wrong. Choosing the right keywords starts with you making a list of the keywords or phrases under which you’d like to be found, and typically ends up somewhere completely different. Typically, selecting the best keywords is a four-step process:

List the keywords and phrases under which you’d like to be found.

Find out whether anyone searches on those keywords, and whether they’re searching for relevant items.

Find out how many other sites are struggling for rankings under those keywords.

Pick keywords with the same meaning but a better search-to-competition ratio.

Maybe I want to rank #1 under ‘Search Engine Optimization’. Guess what? There are 686,000 other URLs in Google trying for that spot. Hmmm. But wait! Under ‘Seattle Search Engine Optimization’ there are only 19,000. So, I targeted that key phrase, instead. And guess what? We got a #3 ranking.

Don’t forget about relevance, either. If you want a high ranking under ‘tires’, you’re going to have your work cut out for you. And in the end you’ll likely end up getting found for ‘bicycle tires’, ‘automobile tires’, ’spare tires’ and who knows what else. Is it worth it? Sometimes yes, sometimes no. But you have to do your homework to find out.

Data Mining and Keywords
If you’re doing a campaign for a large site, you may end up testing and comparing thousands of keywords and phrases. Having a good data-mining tool (even Excel will do) on hand is important when you’re doing keyword analysis. We use S-Plus, by Insightful Software. It’s saved our lives, and clicker fingers, several times.

There are several tools that help you research the number of searches and competitors for keywords. Wordtracker (http://www.wordtracker.com) is a good one — don’t depend on their results from Overture, though, unless you’re specifically preparing an Overture campaign. Metacrawler’s MetaSpy tool is worth a look, too. Ideally, look at results from a few different sources.

Keyword analysis is the hardest part of a campaign, in number-crunching terms. It requires a lot of work and may not tell you what you want to hear. But in my experience it’s critical to a successful campaign.

Step 2: Search Engine Readiness. Almost every web site we review has one or more problems that will prevent search engine bots from properly reading all content. Typical showstoppers include:

An all-Flash or all-images home page

A home page that automatically redirects to another page

Pop-up ads (does anyone really read these things?)

A site full of pages with fewer than 400 words on a page

Broken links

Navigation that is generated by JavaScript

No TITLE or DESCRIPTION tags

A major step in any SEO campaign is making sure that the site will present the friendliest profile to search engines. Happily, the investment in optimizing will also pay off in a faster, more universally compatible site.

Step 3. Content and Site Preparation. You’ve done your research: You know which keywords match your message, and your site’s HTML code is one big search engine welcome mat. Now it’s time to make sure that your site contains those keywords. This is where I most often see folks get confused — should you rewrite your web content to emphasize keywords? Yes, but with extreme caution. Should you make small, appropriate changes? Yes. Here are my guidelines for content preparation.

Don’t write for keywords (much). This almost always leads to stilted, hard-to-read prose. Writing keyword-rich content that really works for users is an art form. Be careful.

Do a little careful editing. If you use the word ‘car’ but ‘auto’ is the keyword you need, chances are you can do a few replacements without marring your carefully crafted copy.

Spend time on the titles and description tags. Make sure every page in your site has a unique, relevant TITLE and DESCRIPTION tag.

Never use an automatic page generator. Tools like WebPosition Gold offer to generate optimized pages for you. Don’t. They tend to hurt your ranking as much as help, and they generate ugly, ugly pages.

Write more stuff. More content is almost always better. If your site is just missing a specific keyword or phrase, but you think it’s important, then your potential customers probably do too. By adding a few more pages, or a white paper, or some other content focusing on those absent keywords, you’ll likely help visitors and improve your keyword ranking at the same time. And, the more text-rich your site is, the better the odds that you’ll catch longer, stranger but really important key phrases that you can’t anticipate.

Step 4. Link Analysis. Quite a few major search engines (Google, most importantly) weigh your ‘link popularity’ when ranking your site. A more accurate term, though, is ‘link analysis’, because these engines don’t just count up the number of links to your site. They look for links near and containing relevant text. So a page full of links, one of which happens to be yours, won’t help very much. But a link from a related site, near a short paragraph that contains relevant keywords, will probably give you a boost. Having keywords in the link itself is even better. A quick example:

http://www.portentinteractive.com doesn’t help much.

For search engine optimization, visit http://www.portentinteractive.com is much better.

For search engine optimization, visit Portent Interactive where ’search engine optimization’ is the link to Portent, is the absolute best case.

There are a few ways to build your link popularity:

Contact sites that relate to yours and request a link exchange. This works really well, but obviously takes a long time.

Syndicate your content. If you can provide an easy way for interested webmasters to link directly to relevant stories on your site, you provide an instant link popularity boost, and get your message out to boot.

Start an affiliate program. If you sell a product, consider setting up an affiliate sales program.

Google’s ‘One Site, One Vote’ Rule
Google awards a lot less weight to a link to your site if that link is on a page with lots of other links. That’s why so-called ‘link farming’ doesn’t work. Ideally, you want a link to your site from a page that includes relevant content and not that many other outgoing links.

Step 5. Submit your site. Many search engines, Google included, allow you to submit your site for free. Generally you can submit your home page and let the search engine crawl the rest of your site. Some directories and engines offer paid ‘express’ services, and some, like Teoma, require that you pay for URL submission. Which engines you choose depends on your budget and campaign.

Step 6. Review, Revise, and Keep Going. Think you’re done? Wrong — search engine optimization is an ongoing project. At least once per month, review your rankings, site traffic reports and link popularity and tweak your site as necessary. The tools you need to measure results are:

Site traffic reports. Any web hosting company should provide you with a web site traffic report, and almost all of the reporting tools in use today provide a ‘referrals from search engines’ section. Take a look at this section for a good measure of campaign results.

Link counts. Use the link: command on Google (see above) to determine your link popularity.

Your keyword list. Search on the relevant search engines to see if your ranking has improved.

Your brain. You have to interpret what you see, and decide whether changes are warranted. There’s no hard and fast rule for this, and no magic formula. Sorry about that…

So now you’ll get instant results, right? Well, not quite…

A Word About Expectations

Search engine optimization can take time. Even Google only refreshes its entire index once a month, so don’t expect instant results.

If your first registration run doesn’t generate increased rankings within a month or two, don’t panic. Look at your site traffic and search on the keywords you chose. Make sure that the search engine you’re checking actually includes your site, too — most likely the bots just haven’t gotten around to ‘crawling’ your site.

Still stumped? Find a professional. Sure, we cost money. But you may have missed something about your site that’s preventing a good keyword rank, and a second set of eyes can help.

A Solid Marketing Strategy

Obviously, Search Engine Optimization is a big job. But nothing can send more traffic to your site, for lower per-click cost. If you follow the basic steps, and keep at it, you will definitely get results. What’s really, really important is to make sure you don’t award too much weight to one step (such as link popularity) at the expense of the others. A well-rounded campaign will provide solid, long-term results.

What about pay per click?
Pay-per-click services, such as Overture and Google Adwords, are very different animals. If you’ve done your keyword analysis you’re halfway there, but there are other tasks. I’ve not talked about them in this article because, well, they need an article of their own. Check back soon…

Consulting engineer insurance is an exclusive insurance policy in the field of software engineering in order to protect the interests of consulting engineers. Consulting engineers are a kind of consulting software engineer who takes care of the customer’s interests in a team actually building a software system, application or software product.

The role of consulting engineers is pivotal in the long-established field of civil engineering, which term denotes a person who represents the client’s interests with the architects, builders and other suppliers engaged on a construction project.

These expert people generally monitor or overview the working patterns of the construction team. They also ensure the software under development most closely meets the needs of the customer. Consulting software engineers generally get paid by the customer, thus encouraging them to represent the customers’ interests.

Consulting engineers serve people on the basis of their needs and requirements. You can hire them for privately and publicly as you please them to be. Decide about the brief consultations or go for complete design and coordination of a project and bring efficiency into the work. They are often the technical liaison between architects, process specialists, contractors, suppliers and the client.

These people’s specialty include a broad spectrum of software engineering technologies and skills such as design and redesigns in software process; proper analysis; measurement; project and programme management; coding; testing; configuration management; etc.

You may seek general consultation, seek special reports, create reviews of design, estimation of costs, studies of prevailing rates, project monitoring and oversight, patent assistance and preparation of business impact statements.

Need for Consulting Engineer’s Insurance

Insurance coverage is the best thing for your daily operation of the service. As a responsible consulting engineer, in case if you have to face any unpleasant situation, financial assurance from insurance companies will help you to recover your pains. Find out the most economical insurance provider and get the bets deal very soon.

Engineering-related degrees are the top earning college degrees, according to a survey from the National Association of Colleges and Employers. The data was collected by surveying 200 college career centers across the country.

Engineers hold some of the most important jobs in helping the society we live in. “They are in the background designing and building everything from our cell phones, to the buildings we live and work in, to the medical equipment used to improve our lives,” said UNT assistant professor Dr. Althea Arnold.

The top 15 highest earning college degrees:

Petroleum Engineering – $ 83,121 Chemical Engineering – $64,902 Mining Engineering – $64,404 Computer Engineering – $61,738 Computer Science – $61,407 Electrical Engineering – $60,125 Mechanical Engineering – $58,766 Industrial Engineering – $58,358 Systems Engineering – $57,438 Engineering Technology – $56,447 Actuarial Science – $ 56,320 Aeronautical Engineering – $56,311 Agricultural Engineering – $54,352 Biomedical Engineering – $54,158 Construction Management – $53,199

On the list of 15, engineering-related diplomas took every spot except for one, which belonged to actuarial science majors. Actuarial science is the practice of applying mathematical methods to assess risk in financial industries.

“A degree in engineering is certainly an excellent training for innovation and discovery, which contribute significantly to the welfare of mankind,” said Dr. Nourredine Boubekri, Chairman of the Engineering Technology Department at UNT.

The number one degree, petroleum engineering, has an average starting salary of $83, 121. According to CNN, the high salary is an outcome of petroleum’s growing scarcity.

Fewer students are graduating with math-based majors and more are graduating with liberal-arts majors, according to CNN. Out of the 1,524,000 bachelor’s degrees awarded in 2007 only 450 were in petroleum engineering and 4,492 in chemical engineering, according to the National Association of Colleges and Employers. The low number in math-based majors could be a reason why graduates in the field are paid more than others. There are a larger amount of graduates in other fields, making finding employees not very hard.

“I chose to go with liberal arts because I’m not very strong in math, I could never do what engineers do with numbers and calculations,” said UNT junior Kathleen Brown.

Not every student graduating in engineering enters the job market with a huge salary. Engineering has also been hit by the economic and job crises as well, but still students prove to do better with a math/technology based degree in the tough job market.

“I’ve always wanted to study engineering because of my love for math but especially because I love to take things apart and discover what’s going on and how to improve it.” said Mark Logan who hopes to attend UNT in the spring.

The College of Engineering at UNT is made of 3 departments: the departments of computer science and engineering, engineering technology, and materials science and engineering. These departments offer student research and study, giving students the chance of working towards bachelor’s, master’s or doctoral degrees.

“Engineers are the unsung heroes in our advanced technological society,” said Arnold. “Without engineers, no part of our modern society would exist today.”

The diesel engine has a long history that is intertwined closely with economic and other issues of the time. The diesel engine was created by Rudolph Diesel. He conceptualized the diesel engine and thought up the principle of its operation. He thought up the concept of the engine that compresses air to the degree where there is a resulting rise in temperature.

The concept followed the principle where when the air enters the chamber with the piston the air ignited due to the high temperatures. This causes the piston to move down and eliminates the need for an ignition source. When Diesel designed his engine it was in a time when there was a demand for a more fuel efficient engine as the steam engine was no where close to efficient.

It was on February 27th, 1892 that Diesel filed a patent in the patent office in Germany for his method and design for the combustion engine. He sourced contracts from companies that manufactured machines and began his experimentation stage. During this stage he constructed working models of his design in an attempt to construct the most efficient engine of that time.

It was in the year 1893 that he was successful in putting out the first model that was able to run with its own power and with an efficiency of approximately 26%. This was more than double the efficiency of the steam engines of that time and was a great stride for the efficient engine and a great start to the engines of today.

It was in February of 1897 that he accomplished a great achievement and produced a diesel engine that ran at 75% efficiency. This was the first one of its kind that was deemed suitable for practical use and was demonstrated at the Exhibition fair in France in the year 1898. This engine in particular was run on peanut oil and in Diesel’s vision was great for the small business owners as well as farmers as it used an economical fuel source that was a biomass fuel. It was his use of a biomass fuel that continued until the 1920’s and is starting again today.

In the past the diesel engine was not considered to be small enough for anything but use that was stationary in nature as they were very heavy and cumbersome. Common uses were on ships and industrial uses. Rudolph Diesel disappeared in 1913 and it was not certain whether he died a natural or unnatural death. Many thought his death was related to the politics of the time and the vast knowledge he possessed and was willing to share with enemies of the German government of the time.

In the 1920’s the engine was redesigned into a smaller and more compact version. This allowed it to be used for a wider range of applications and even in the automobile industry. The development of the diesel engine continued and it was made better and better by other inventors such as Clessie L. Cummins who worked out many of the bugs of the diesel engine such as those concerning size and weight as well as the instability of the fuel system.

If you have ever wondered what engineering is, you may not be prepared for the huge answer that awaits you. When you delve into it, you will actually realize just how global and varied the industry truly is and there are so many career choices you can follow within Engineering.

What is Engineering?

Basically, to put it into simple terms, engineering is where you solve problems. To add a bit more to it, engineers use technical, as well as scientific knowledge in order to make judgments. By using their imaginations, they come up with solutions to problems either new or old.

It is by using the application of technical and scientific knowledge that engineers put judgment, imagination and reasoning to work in order to come up with new solutions to human problems or new ways to solve old problems. So, if that has left you feeling a bit hazy, the best way to summarize all of this is that engineers are problem solvers.

What Are Some Types of Engineering Out There?

To get a better understanding of engineering, it is a good idea to know about some of the types of engineering there is out there. A broad field of engineering is civil engineering and it can be broken down into smaller parts, too.

To get a basic understanding of civil engineering, they deal with the planning, the construction as well as the maintenance of public buildings that are related to water, civilization and even the earth. This can include working with structures such as bridges, water supplies and trains, etc.

Other types of engineering you may or may not have heard of are computer engineering, construction engineering and mechanical engineering. Mechanical engineering is also another broad field of engineering available, and it deals with the physical principles including the analysis, design, manufacture and maintenance of mechanical systems.

Some other types of engineering careers available are aviation, automotive and also software engineering. As you can see, these are just a few that have been mentioned, but every main category can be split up into lots of different fields. If you wanted to be a software engineer, you could consider being a games software engineer or even a communications software engineer. The choice is entirely yours.

Is Engineering for you?

You may be curious about certain things and about the way they work, or you could be someone who loves to solve problems. If this sounds like you and you want to create certain things that could well change the way that everybody lives, engineering could be the absolutely perfect career for you. So, if that does sound like you, why not inquire a little more to see just how you can take the first steps into working as an engineer.

General Motors has done much to revitalize its Saturn brand in the past eighteen months. The brand known in the past as the home of the haggle-free customer service is now the fastest growing brand in the United States auto market. General Motors has revitalized the brand by infusing the Saturn lineup with German engineering.

With the help of Opel, General Motors has turned Saturn vehicles into the most European-ized American cars in the market. The recently named the 2007 North American Car of the Year, the Saturn Aura has close ties with the Opel Vectra. The Saturn Astra that will be released in the North American market later this year is a rebadged Opel Astra. Another result of the collaboration between Opel and Saturn is the convertible Saturn Sky which is based on the Opel GT.

Another Saturn vehicle with European lineage is the midsize crossover SUV Saturn Vue. The vehicle was designed based on the Opel Antara which is based on the General Motors Theta platform. The Antara and the Vue are designed to be indistinguishable from each other. Both are designed and developed in Germany using the country’s engineering.

The similarity between the European Antara and the American Vue is apparent in its handling. The suspension setting of the Antara mirrors that of the Vue. Both crossover SUVs are equipped with strut-front and multilink-rear suspension settings. According to the manufacturer of the Vue, it will have the same handling and stability as its European sibling.

With German engineering behind the new Vue, handling is improved compared to its predecessor. With more responsive handling, the Vue is considered as a near luxury vehicle. In the past, several Saturn auto models have failed to give the brand an upscale feel. But with the partnership with Opel, Saturn vehicles have become a serious competitor in its segment.

The General Motors Theta platform was revised to give the new Vue its sharper handling and better ride comfort. Vibrations and noise from the engine bay are also reduced, thanks to the specially designed Saturn engine mount which absorbs most of the engine’s vibrations.

The revisions to the automobile platform with the use of German engineering have resulted to an increase in weight. More than 400 pounds were added to the new Vue compared to its predecessor. This increase in weight is a surprise considering that the new Vue has virtually the same dimensions as the old Vue.

The 2008 Saturn Vue will be equipped with a standard 2.4-liter Ecotec engine with the variable valve timing. This engine can produce as much as 169 horsepower. An optional engine for the new Vue includes a 3.5-liter V6 with an output of 222 horsepower. Another engine choice available for the Vue is a 3.6-liter direct overhead camshaft V6 engine with an output of 257 horsepower.

The new Saturn Vue will be competing in the North American auto market directly with the Ford Escape, the Honda CR-V and the Toyota RAV4. In order to compete with these already established nameplates, the Saturn Vue has been given European styling which is aimed to attract young vehicle buyers. The changes made in the exterior of the Saturn Vue gives it a sportier look unlike its predecessor. With the help of Opel, it seems that the Saturn Vue will become a major competition for the Asian brands in its segment.

A software development process is a structure imposed on the development of a software product. Synonyms include software life cycle and software process. There are several models for such processes, each describing approaches to a variety of tasks or activities that take place during the process. . Let us see the steps involve in any software development.

Domain Analysis

Often the first step in attempting to design a new piece of software, whether it be an addition to an existing software, a new application, a new subsystem or a whole new system, is what is generally referred to as “Domain Analysis”. Assuming that the developers (including the analysts) are not sufficiently knowledgeable in the subject area of the new software, the first task is to investigate the so-called “domain” of the software. The more knowledgeable they are about the domain already, the less the work required. Another objective of this work is to make the analysts who will later try to elicit and gather the requirements from the area experts or professionals, speak with them in the domain’s own terminology and to better understand what is being said by these people. Otherwise they will not be taken seriously. So, this phase is an important prelude to extracting and gathering the requirements.

Software Elements Analysis

The most important task in creating a software product is extracting the requirements. Clients typically know what they want, but not what software should do, while incomplete, ambiguous or contradictory requirements are recognized by skilled and experienced software engineers. Frequently demonstrating live code may help reduce the risk that the requirements are incorrect.

Specification

Specification is the task of precisely describing the software to be written, possibly in a rigorous way. In practice, most successful specifications are written to understand and fine-tune applications that were already well-developed, although safety-critical software systems are often carefully specified prior to application development. Specifications are most important for external interfaces that must remain stable.

Implementation (or coding)

Reducing a design to code may be the most obvious part of the software engineering job, but it is not necessarily the largest portion.

Testing

Testing of parts of software, especially where code by two different engineers must work together falls to the software engineer.

Documentation

An important (and often overlooked) task is documenting the internal design of software for the purpose of future maintenance and enhancement. Documentation is most important for external interfaces.

Software Training and Support

A large percentage of software projects fail because the developers fail to realize that it doesn’t matter how much time and planning a development team puts into creating software if nobody in an organization ends up using it. People are occasionally resistant to change and avoid venturing into an unfamiliar area so, as a part of the deployment phase, it is very important to have training classes for the most enthusiastic software users (build excitement and confidence), shifting the training towards the neutral users intermixed with the avid supporters, and finally incorporate the rest of the organization into adopting the new software. Users will have lots of questions and software problems which lead to the next phase of software.

Maintenance

Maintaining and enhancing software to cope with newly discovered problems or new requirements can take far more time than the initial development of the software. Not only may it be necessary to add code that does not fit the original design but just determining how software works at some point after it is completed may require significant effort by a software engineer. About ? of all software engineering work is maintenance, but this statistic can be misleading. A small part of that is fixing bugs. Most maintenance is extending systems to do new things, which in many ways can be considered new work.

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Petroleum engineers are involved in all the stages of oil extraction procedures. From exploration to recovery , petroleum engineers have the skills and ability to supervise the entire operation. Their educational background in chemistry, physics, math, computer science and geology makes them an important part of the extraction and production procedures of oil and gases. On the field they can hold roles as drilling engineers, reservoir engineers, chemical engineers or analysts.

These are some of the jobs and tasks of a petroleum engineer.

1. Planning and Surveys. When a potential oil site is found the initial task of a petroleum engineer is to get samples from the area. The samples will contain information on the quality, quantity and depth of the oil. After analysis of the area and oil are done, the drilling engineer starts planning the extraction process. The right equipment and instruments are chosen for the drilling and extraction of the oil. Positioning the wells and modifying drilling operations are made by the petroleum engineer to increase productivity. The engineer supervises drilling activities on the oilfield and monitors each stage of the operation.

2. Evaluation and Problem Solving. Reservoir engineers have to know how to recover the oil in the ground utilizing the most effective means at a reasonable cost. They consult with geologists, hydrologists, chemical engineers, metallurgical engineers, and mining engineers for design and testing issues. Operational problems have to be addressed so oil recovery procedures can be maximized. Petroleum engineers are tasked with re-evaluating the processes and assist technical personnel by interpreting the results of the evaluation to ensure the changes made will improve oil recovery procedures.

Implementation. Petroleum engineers coordinate and supervise the installation and maintenance of drilling equipment on the oil field. Placement of wells is decided upon and tests are conducted to make sure the process is done according to design. Installation of drilling and other oil recovery equipment have to meet environmental control measures.

Safety at the drilling site is a major concern. It is also the role of petroleum engineers to ensure that machinery and equipment brought on site have been tested to meet performance requirements. Inspections have to be done regularly during recovery procedures to check if safety measures are met. When recovery procedures are over and all the oil or gases have been extracted, it is the job of petroleum engineers to supervise the organized dismantling of structures at the site. The machinery and equipment must be properly removed from the area as well as any waste products that accumulate during extraction procedures. Areas that have been drilled have to be filled and returned to its normal state.

Petroleum engineers have many job tasks while they are out on the field. Their educational background and the skills they acquire on the job provide them with the ability to choose from a broad list of job positions.

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Petroleum Engineering Schools in US