Saturday, April 25, 2009

Information Technology Manufacturing Solutions

Rapidly changing market dynamics is pushing all businesses belonging to different industry verticals, especially manufacturing, to come up with innovative ways to streamline the ‘3 D’s of product lifecycle i.e., design, development and deployment, to deliver marketable and reliable products.

Emerging and ever changing consumer tastes, evolving regulations, and ageing demographics call for a partner who can enable technology solutions that generate tangible and measurable value for businesses in order to achieve a strategic edge on their competition. Organizations that envisage co–building along with all its stakeholders, an integrated and sustainable world by leveraging technology, always stay ahead of the rest. Focused commitment and unique business models built around relationships and customer commitment is what wins the race and sustains it till the end. One positive aspect in this race to success is that technology has become more intelligent, safer and eco-friendly.

Irrespective of the industry vertical, companies that can strategically partner with customers to reduce product development lifecycle and hasten the time to market the products, are the call of the ever changing present and the future. And in today’s cut throat drive to stay on top, customers play a major role in leveraging expertise to increase innovation, manage the globalization, besides reducing costs across the manufacturing and production cycle. These factors play a major role in bringing about faster turn around across the entire value chain, which is driven by a proven domain expertise and high knowledge capital. It enables to build a compelling business advantage and deliver end to end services.

To stay ahead of the competition, manufacturers need to globalize their process & systems efficiently through a unique blend of domain-intensive technology and process expertise that ensures delivering products faster to their target markets. In a world where success is related to time & speed to enable, there is a definite need for a partner who can achieve the strategic edge in order to determine the market leadership. That being the case, it is wise to partner with an established IT consulting organization, whose sole focus is on co-creating technology products and solutions to help customers become efficient, integrated and innovative manufacturing enterprises, with maximum attention to uncompromising quality and an initiative to drive Zero-Defects, being the objective.

Sunday, April 19, 2009

Biotechnology And Agriculture

The methods of biotechnology involved include genetic engineering (GE), genomics and bioinformatics, marker-assisted selection, micropropagation, tissue culture, cloning, artificial insemination, embryo transfer, and other technologies. In producing improved agricultural crops by genetic engineering, researchers aim for strains with the properties such as herbicide resistance, pest resistance, disease resistance, stress resistance and altered composition. All these properties will help farmers and large production companies to grow crops which will benefits in producing new products, increasing quality and quantity of existing products and improving ingredients of crops so that their production will ensure healthy and tasty food. For example, transgenic plants grew better under drought conditions and responded better when brought out of water stress. Next, such crops will allow producing potato starch with high amylopectin content for making paper, textiles and adhesives and rapeseed oil with greater erucic acid levels for plastic and industrial lubricants production.

Biotechnology is proving to be a vital complement to conventional agricultural research, improving breeding and conservation programmes and giving insights into understanding and controlling plant diseases. Aside from making conventional research more precise, GE also gives scientists the dramatic ability to transfer genetic material between organisms that normally cannot be combined through natural methods. Along with this newfound ability, however, comes new issues and concerns that need to be addressed before any large-scale adoption can take place. These include unintended transfer of transgenic genes, development of resistance by weeds, pests and diseases, and potential allergies from exotic proteins. Transparent and impartial evaluation of developed strains to answer these questions rather than rely on media hype will safeguard human health, protect the environment, and facilitate public acceptance of genetically engineered crops.

Saturday, April 18, 2009

Wireless Networks- Modulation techniques

Many of the wireless technologies in the WPAN, WLAN, and WWAN categories transmit information using radio waves. For this to take place, the data is superimposed onto the radio wave, which is also known as the carrier wave, since it carries the data. This process is called modulation. There are many modulation techniques available, all with certain advantages and disadvantages in terms of efficiency and power requirements. The modulation techniques are as follows:

1. Narrowband technology - Narrowband radio systems transmit and receive data on a specific radio frequency. The frequency band is kept as narrow as possible to allow the information to be passed. Interference is avoided by coordinating different users on different frequencies. The radio receiver filters out all signals except those on the designated frequency. For a company to use narrowband technology, it requires a license issued by the government. Examples of such companies include many of the wide area network providers.

2. Spread spectrum - By design, spread spectrum trades off bandwidth efficiency for reliability, integrity, and security. It consumes more bandwidth than narrow-band technology, but produces a signal that is louder and easier to detect by receivers that know the parameters of the signal being broadcast. To everyone else, the spread-spectrum signal looks like background noise. Two variations of spread-spectrum radio exist: frequency-hopping and direct-sequence.

a). Frequency-hopping spread spectrum (FHSS) - FHSS uses a narrowband carrier that rapidly cycles through frequencies. Both the sender and receiver know the frequency pattern being used. The idea is that even if one frequency is blocked, another should be available. If this is not the case, then the data is re-sent. When properly synchronized, the result is a single logical channel over which the information is transmitted. To everyone else, it appears as short bursts of noise. The maximum data rate using FHSS is typically around 1 Mbps.

b). Direct-sequence spread spectrum (DSSS) - DSSS spreads the signal across a broad band of radio frequencies simultaneously. Each bit transmitted has a redundant bit pattern called a chip. The longer the chip, the more likely the original data can be recovered. Longer bits also require more bandwidth. To receivers not expecting the signal, DSSS appears as low-power broadband noise and is rejected. DSSS requires more power than FHSS, but data rates can be increased to a maximum of 2 Mbps.

3. Orthogonal Frequency Division Multiplexing (OFDM) - OFDM transmits data in a parallel method, as opposed to the hopping technique used by FHSS and the spreading technique used by DSSS. This protects it from interference since the signal is being sent over parallel frequencies. OFDM has ultrahigh spectrum efficiency, meaning that more data can travel over a smaller amount of bandwidth.

Fundamentals of Wireless Networks

Wireless networks can be divided into two broad segments: short-range and long-range. Short-range wireless pertains to networks that are confined to a limited area. This applies to local area networks (LANs), such as corporate buildings, school campuses, manufacturing plants or homes, as well as to personal area networks (PANs) where portable computers within close proximity to one another need to communicate.

These networks typically operate over unlicensed spectrum reserved for industrial, scientific, medical (ISM) usage. The available frequencies differ from country to country. The most common frequency band is at 2.4 GHz, which is available across most of the globe. Other bands at 5 GHz and 40 GHz are also often used. The availability of these frequencies allows users to operate wireless networks without obtaining a license, and without charge.

Long-range networks continue where LANs end. Connectivity is typically provided by companies that sell the wireless connectivity as a service. These networks span large areas such as a metropolitan area, a state or province, or an entire country. The goal of long-range networks is to provide wireless coverage globally. The most common longrange network is wireless wide area network (WWAN). When true global coverage is required, satellite networks are also available.

Sunday, April 12, 2009

Alternative Energy- Continued

Geothermal energy is extremely abundant, since it lies directly beneath our feet, just a few miles below the earth's surface. This energy is produced by the heating of water through the actions of earth's fantastically hot molten core. The water turns to steam, which can be harnessed and used to drive turbine engines which in turn generate electricity. Great amounts of research and development should be put into geothermal energy tapping.

Waste gas energies, which are essentially methane, reverse the usual energy-pollution relationship by creating energy from waste that lies in the dumps and from some air pollutants. This gas is used in fuel cells and can be used in standard gasoline generators. Ethanol is a gasoline substitute and is created from such things as wheat, sugarcane, grapes, strawberries, corn, and even wood chips and wood cellulose. There is controversy over this fuel with regards to its ever becoming truly economical or practical except in very localized areas, but technologies for its extraction and admixturing are continuously being refined.

Biodiesel energy is created out of the oils contained in plants. So far, the commercial stores of biodiesel have been created using soybean, rapeseed, and sunflower oils. Biodiesel is typically produced by entrepreneurial minded individuals or those who want to experiment with alternative energy, but commercial interest from companies is on the rise. It burns much cleaner than oil-based diesel.

Atomic energy is created in atomic energy plants using the process of nuclear fission. This energy is extremely efficient and can generate huge amounts of power. There is concern from some people about what to do with the relatively small amount of waste product atomic energy gives off, since it is radioactive and takes hundreds of years to decay into harmlessness.

Alternative Energy Sources

There is a lot of energy that we can harness if we only seek to research and develop the technologies needed to do so. We can get away from the fossil fuels and the old electrical grids by turning to alternatives to these energy sources.

One of these alternative energy resources is wind power. Wind turbines continue to be developed that are progressively more energy efficient and less costly. "Wind farms" have been springing up in many nations, and they have even become more strategically placed over time so that they are not jeopardizing birds as former wind turbines did.

Another alternative energy resource is the one that is most well known: solar energy. This involves the manufacturing of solar cells which gather and focus the energy given off directly by the sun, and translate it into electricity or, in some cases, hot water. As with wind energy, solar energy creates absolutely zero pollution. Ocean wave energy is seen by governments and investors as having enormous energy generating potential. A generator in France has been in operation for many years now and is considered to be a great success, and the Irish and Scots are running experimental facilities.

Hydroelectric power has been with us for a while and where it is set up, it is a powerful generator of electricity and cleaner than a grid. However, there are certain limitations to the availability of the right places to set up a large dam. Many run-of-the-river, or small and localized, hydroelectric generators have been set up in recent times due to this limitation.

Friday, April 10, 2009

LASIK-The Carving Of The Cornea

LASIK or “Laser-Assisted In Situ Keratomileusis” is the only commonly performed keratomileusis procedure. Keratomileusis involves an altering of the shape of the corneal tissue with the aid of an excimer laser, which is a powerful ultraviolet laser. This laser eye surgery is performed by ophthalmologists in order to correct different types of vision impairment. LASIK is the preferred treatment for patients with refractive error, since the procedure entails rapid recovery and minimal pain overall.LASIK surgery leverages technology to its fullest.

For instance, a computer system tracks the patient’s eye position 4,000 times per second, while the lasers make the desired incisions. It might sound like a dangerous procedure, but it’s time to debunk this myth. LASIK surgery is a completely safe procedure performed with high precision. That is, the laser carves the corneal tissue in a finely controlled manner. LASIK surgery is not that cumbersome when compared with other types of eye surgery, and has a relatively low frequency of complications. Though LASIK surgery is performed with the patient awake and functional, the eye surgeon typically administers a mild sedative and anesthetic eye drops. No matter what the type of vision impairment, altering the shape of the cornea is a viable solution.

In general, the procedure has very few side effects and offers instant results. However, a few complications may arise depending on the extent of the patient’s refractive error and other irregularities in the corneal tissue.LASIK eye surgery, with excellent technology at its disposal, is improving at a rapid rate. However, there is no conclusive evidence as to the chances of long-term complications owing to the surgery.

Although relatively uncommon, a few complications may arise, namely corneal infection, slipped flap, haziness, halo or glare. An important point to note is that this laser-assisted procedure is irreversible. LASIK has gained popularity due its efficacy and improved precision. The procedure also boasts of the smallest complication statistics relative to other eye surgeries. With only a 5% complication rate, LASIK sounds like a safe enough procedure to rectify your vision impairment.

Satellite Radio

Satellite radio has quite literally been a god send to people who live or travel regularly in remote locations, or even for people who are required to travel long distances. Static-free reception can now be experienced and enjoyed by listeners who have a satellite radio even if they are in the remotest of locations.

In the past if you were travelling for long periods, every hour or so you would have to start tweaking with the radio dial, as the radio station you were just listening to began to turn to static after it seemed to fade in and out for a while. You would then frantically try to locate a new radio station to listen to and just as you did, it too would turn static. This would go on until eventually there were no decent stations left on the dial and then finally you would succumb to putting on a cassette or a CD or even turning off the entire stereo all together. But with the advent of satellite radio, static, tuning, fiddling and complete boredom will soon be a thing of the past.

The standard, more conventional radio signals are only able to travel around 30-40 miles from their original transmitters so if you travel beyond this distance then the signal will eventually get weaker and weaker until you are no longer able to hear the transmission at all. However in a far greater development of technology, satellite radio waves travel from space (around 22,000 miles) meaning that you will be able to travel across the entire country without even having to change national radio stations because the frequency will be consistent and strong.