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  • Записи с меткой ‘east’

    Meet Your New Best Friend: WiMax Wireless Internet

    Meet Your New Best Friend: WiMax Wireless Internet

    If you are like most Americans, you probably already consider your laptop computer and wireless internet among your most trusty and indispensable best friends. But do your friends ever seem to fail you just when you are most in need of them? When you’ve got an important business presentation and are in need of a little last-minute fact-checking, or are eagerly awaiting a college admissions decision or news of the birth of a new addition to the family, an internet carrier with seamless connectivity is a number-one priority on your list. Luckily, people like you in these very situations from the west coast to the east are getting on board with a new kind of internet. WiMax wireless internet; it’s everything you’ve been dreaming of, and with new cities being added constantly, chances are it already is, or soon will be, taking your hometown by storm.
    WiMax wireless internet means an umbrella-web of coverage over your entire network area, affording you an infinite number of locations where it is possible to connect to the internet, and not lose the connection even as you move from place to place. Consider your daily schedule;  this may involve getting up, grabbing a coffee on the go and waiting in traffic for thirty minutes until you finally arrive at work, where you spend a few hours, then head out for lunch nearby, then back to work. After your busy day at the office, you trek on over to unwind in you favorite hatha yoga class, shower off, and prepare for yet another dinner business meeting. Now imagine how much simpler and more efficient your day would be if you only had the ability to jump online at any of the numerous places you might find yourself during the day-wouldn’t that make your life just so much easier? No longer do you have to worry about having to cram in a thirty minute coffee shop break here and there just so you can hop online when you need to; with the new mobile air card revolutionizing the way we connect to the internet, you’ve got everything you need right in the palm of your hand.
    The mobile air card is a central feature of new 4G wireless internet standards, and it offers seamless network coverage in a gadget that is no bigger than a matchbox. This ever-so-portable card hooks up to your laptop computer and immediately offers you all the advantages a traditional WiFi web location does, with the added bonus of keeping you continually connected while you move about across the network’s range. Already available in numerous locales across the United States, WiMax internet is being added in cities across the nation every day. And its list of satisfied subscribers continues to grow, as well.
    Soon, old restrictions of having to seek out particular spots which offer WiFi, and being obligated to sit in a noisy, crowded coffee shop or mall just so you can check your email for a minute will be obsolete. Today’s discriminating internet consumer knows not to settle for anything less than the best, and the newest technology making waves on today’s web market is WiMax wireless internet.

    Nintendo Ds Lite

    Nintendo Ds Lite

    The new Nintendo DS Lite dual-screen handheld game console coming from Nintendo is a slimmer, brighter, design to be aesthetically sleeker targeting broader commercial audiences. Launched in January 26, 2006, in Japan, this model succeeded in receiving a huge applause in the electronic market. This resulted in launching Nintendo DS Lite later in Japan, Australia, North America, Europe, New Zealand, Singapore, and defined regions in South America, the Middle East and Korea. A whopping record sale of 34.93 million units was recorded by September 2007, which was something unheard in the industry.

    Even though a successor of the original style Nintendo DS, there are much differences between them. The latest Nintendo DS Lite weighs a total of 218grams which is 21% lighter than the DS. Coming in dimensions of 133mm x 73.9mm x 21.5mm, the Nintendo DS Lite has an extended battery life than its predecessor. The new arrival enjoys a lower brightness setting for fifteen to nineteen hours with a full three-hour charge, and five to eight hours on the highest brightness setting.

    While its predecessor was carrying a 850mAh battery, the DS Lite comes with a 1000mAh battery. The new model Nintendo DS Lite is much brighter, with more durable top and bottom LCD screens, and four levels of brightness and comes with a design that is shock resistant. This model has a larger stylus with dimensions of 87.5 x 4.9 x 75 x 4 that is easier to hold in hand.

    The stylus is now also side-loaded and located next to the power switch, making it easier to reach when needed. In the new model, the D-pad comes with a reduced size of 18.6mm shared with the Wii Remote and Game Boy Micro. The new model has the built-in microphone located between the top and bottom screens of the Nintendo DS Lite.

    Green Energy Policy Outlook

    Green Energy Policy Outlook

    Over the last decade soaring gasoline and natural gas prices have brought in focus, again and again, the role of green energy – in other words renewable energy – in providing electricity, replacing fossil fuel use, and curbing the growing craze for power transmission equipment. But in terms of awareness, adoption and implementation of green energy imperatives, the United States, in a substantial measure, lagged behind the West European counterparts and Japan, who took giant strides in implementing green energy technologies and policies. Unfortunately, America is ranked as low as the 22nd energy efficient counties.

    Surprisingly, since the early seventies our electricity consumption had tripled. Our ineffective middle-east policies and oil-politics, had thrust us in perpetual war-games, and made us nonchalant about the impending long-run hazards of mankind. Also, the responsibility of failure rests on partisanship, special interest advocacy groups and ineffective political rhetorics of the past regime. During pre-election campaign President Obama had been very critical about our flawed energy policies, and his much-advertized vision for energy policy had placed the significance and exigency of green energy policies at the forefront.

    His draft policy substantially emphasized the salient efficacies of the renewable energy. While emphasizing the the importance of green energy, he was poignantly observant about the result of climatic degradation and the alarming issues like shrinking polar ice-caps making sea levels to rise, extreme weather conditions wreaking global havoc, severe recurrent droughts, the menace of migrating tropical diseases and the log-term threat of sheer extinction of numerous species. In this article, I would like to recap the policy directions he thought about. The green energy solutions, he propagated in his campaign had two dimensions – the short-term and the mid-to-long-term initiatives.

    The short-term solutions, as propagated by President Obama in his campaign, focus basically on providing some immediate relief to the consumers from soaring energy costs. He talked about extending emergency energy rebate to the households “by requiring the oil companies to take reasonable share of their record- breaking windfall profits and use it to provide direct relief worth $500 for an individual and $1,000 for a married couple.”Other short-term prescriptions included initiation of regulatory measures to plug the loopholes in Commodity Futures Trading Commission, so as to control excessive oil-price speculation. The campaign also recommended to “swap light and heavy crude, release oil from Strategic Petroleum Reserve (SPR) to cut process.”

    The mid-to-long-term solutions outlined in the campaign release, emphasized heavily on adoption and implementation of green energy .The areas of emphasis encompassed “two major energy challenges -our dependence on foreign oil and global climate change – both of which stem from our current dependence on fossil fuels for energy.” On enhancing self-reliance on energy and tackling climatic change, the measures propagated, include (i) Implementation of an economy-wide cap-and-trade system to significantly reduce carbon emissions (ii) Invest in the green energy future and creating about 5 million new jobs in related areas,(iii)Making vehicles energy efficient,(iv)Increase the supply of domestic energy,(v) Diversify our sources of energy, with primary emphasis on green energy sources, and finally (vi) Promote commitment to energy efficiency with a view to lowering energy usage and costs. The campaign had some great things on green energy initiatives. it stated that a federal Renewable Portfolio Standard (RPS) would be set up to require that 10 percent of electricity consumed in the U.S. is derived from green energy- i.e. clean, sustainable energy sources like solar, wind and geothermal by 2012.We noticed his strong advocacy for developing and deploying clean coal technology, because Carbon capture and storage technologies hold enormous potential to reduce greenhouse gas emissions as we propel our economy with domestically produced green energy. It outlined the need for developing the next generation of sustainable bio-fuels and providing suitable infrastructure for bio-energy growth. It recognized, “advances in bio-fuels, including cellulosic ethanol,biobutenol and other new technologies that produce synthetic petroleum from sustainable feed stocks offer tremendous potential to break our addiction to oil.” Now, any green-energy advocate , irrespective of any party color, may raise the question- what is the progress, or where the current administration stands in terms of fulfilling the promises? The answer is, now it is too early for performance analysis. There is definitely a laundry-list of priorities that the current administration is exhaustively engaged in. It obviously includes,as the primary focus, the gigantic tasks of reforming the banking and financial sectors to arrest the economic down-turn. The next is the healthcare reform which is currently gaining heavy momentum, with Obama spearheading and pushing hard on it. But truly, energy policy reform does occupy a significant position in the list of priorities. We can patiently wait and see.

    Energy Efficiency in Air Cooled Chillers

    Energy Efficiency in Air Cooled Chillers

    An air cooled water chiller removes heat from water or other process fluid by use of a refrigeration system that then dissipates that same heat into the air. The energy efficiency is given by the chiller COP.

    The chiller operates by using the change of state of a refrigerant gas which when forced through an orifice at high pressure changes state from a liquid to a gas, absorbing heat through the chiller evaporator heat exchanger. This cold expanded gas then travels to the chiller refrigeration compressor where it is compressed into a hot, dense gas and pumped to the chiller condenser. The volume that the compressor can pump, the refrigeration gas used, and the operating conditions determine how much heat is removed.

    At the air cooled chiller condenser the refrigerant is forced by the compressor through smaller copper tubes which have thin aluminum fins mechanically bonded to them. Ambient air is then forced through the condenser coil by the chiller fans. This causes the hot refrigerant gas to condense into a liquid, changing state, and releasing the heat that the gas collected at the chiller evaporator.  The waste heat is then carried away into the ambient air by the fans. The liquid is then forced through the orifice and the process starts again.

    The heart of the chiller is the refrigeration compressor. This is a pump that uses electrical energy to pump refrigerant around the system. Depending on the application like size or operating temperature, a different compressor pumping technology is used. Smaller chillers use refrigeration compressors like rotary compressors, scroll compressors, and reciprocating compressors. Larger chillers use refrigeration compressor like reciprocating compressors, screw compressors, absorption compressors, and centrifugal compressors.

    Each type of refrigeration compressor can operate more or less efficiently in the air cooled water chiller depending on the water or glycol outlet temperature required, the ambient air temperature conditions and the chiller refrigerant used.

    The efficiency of the chiller compressor is given by the COP or Coefficient of Performance which is the ratio of kW of heat removed to kW electrical input required. The higher the chiller COP is, the better the energy efficiency. For example a COP of 3 means that for every 1 kW of electrical input, 3kW of heat is removed from the water. A chiller COP of 5 means that for every 1kW of electrical energy input, 5kW of heat energy is removed from the water.

    Typically chiller COP will vary as follows:

    1. Holding the chiller condensing temperature constant: a lower chiller evaporating temperature will use more electrical power per kW heat removed and the chiller COP will be worse, while a higher chiller evaporating temperature will use less electrical power per kW of heat removed and the COP will be higher. 

    2. Holding chiller evaporating temperature constant: a higher chiller condensing temperature will have a worse chiller COP that having a lower chiller condensing temperature.

    A customers process cooling requirement will determine the operating temperature for the air cooled water chiller. For example an air conditioning chiller will require water typically at 7 deg C outlet from the chiller evaporator and 12 deg C return. This would require a chiller refrigerant like R407C which is fine for ambient air environments of up to 45 deg C.

    Where a higher chiller water outlet temperature is required a chiller refrigerant gas like R134a would be acceptable and this has the added benefit of allowing the chiller to operate in much higher ambient conditions – for example – chillers in the Middle East and chillers in Australia – remote locations like mine sites – are often located where the ambient air can be 50 deg C or above.

    Interoute (wholesale)-Aarkstore Enterprise Market Research Aggregator

    Interoute (wholesale)-Aarkstore Enterprise Market Research Aggregator

    Interoute, like other European and global wholesale operators, aims to grow new revenues by building on its reputation for quality, responsiveness and security, as well as addressing nascent demand for media and content distribution. From its Western European origins, Interoute is building high-tech network infrastructure in Central and Southeastern Europe, while establishing bridgeheads into the Middle East and North Africa.

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    Table of Contents :
    Executive summary
    In a nutshell
    view
    SWOT analysis
    Strengths
    Weaknesses
    Opportunities
    Threats
    External conditions
    Competitive environment
    Regulatory environment
    Customer demand
    Strategy
    Strategy objectives
    Strategy implementation
    Network strategy
    Customer segmentation
    Customer-service strategy
    Products and services
    Product strategy
    Service reach
    Geographic reach
    Pricing strategy
    Company information
    Business focus
    Organisation
    Mergers, alliances and partnerships
    Financial highlights
    Ownership
    List of Figures
    Figure 1: Interoute network map
    Figure 2: Interoute’s position in the wholesale service structure
    Figure 3: Interoute’s organisational structure
    Figure 4: Interoute’s key financial indicators: 2007–08

    Aarkstore Enterprise is a leading provider of business and financial information and solutions worldwide. We specialize in providing online market business information on market research reports, books, magazines, conference at competitive prices, and strive to provide excellent and innovative service to our customers. Our customers include more than 700 leading financial institutions, professional service firms, consulting, law and accounting firms and other corporations throughout the world.

    Aarkstore Enterprise, originally established in 2008, concentrates on providing online market research information services to the top-level people like managers, executives and analysts that will help them in their business activities and techniques involved in their business through its array of publishers like AccuStream iMedia Research, ATA Research, Koncept Analytics, TriMark Publications, Mind Commerce, Aroq Ltd, DNP Information and Analytics (Infolitics), Kazam Technologies, Cutting Edge Information, Daedal Research, Timely Data Resources, Inc., Knowledge Press, Asia Market Information & Development Company, Bishop & Associates, Hot Telecom, Information Gatekeepers Inc, Pennwell, etc.

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