High Accuracy HDI Pressure Sensors

Sensortechnics (Germany) HDI sensors measure absolute, differential or gage pressure in various ranges from 10 mbar up to 5 bar. The HDI series features 3 V supply versions which are ideally suitable for battery powered applications, e.g. in portable or handheld devices. HDI pressure sensors perform precision digital signal conditioning and achieve ultra high accuracies with an excellent Total Error Band ( TEB ) better than ±0.5% FSS over a temperature range of 0…+85 C.

The HDI series provides digital interface with I≤C bus protocol and analog 0.5…4.5 V output signals at the same time therefore allowing customers to build up a redundancy functionality for safety critical applications. The sensors are intended to be used with air and non-corosive gases and offer various unidirectional, bidirectional or barometric calibration as well as different accuracy classes. Miniature SMT and DIP housings allow for space-saving PCB-mounting and maximum OEM design flexibility. A wide selection of sensor configurations are available from stock at Sensortechnics. All HDI pressure sensors can be modified according to customer specific requirement, e.g. with respect to pressure range, resolution, accuracy and internal digital settings.

Due to the wide selection of different sensor configurations Sensortechnics is able to offer customers the best suitable sensor with an ideal coast/performance ratio. Typical applications of the HDI pressure sensors include medical devices, instrumentation, environmental controls and HVAC.

Emergency, Oil Reserves will be Exhausted within 90 years

Oil will run out within 90 years before alternative energy is found, according to new research from the University of California, Davis. These predictions were published online on November 8 in Environmental Science & Technology Journal. This research is based on the long-term theory, this theory said : investor is the best estimator to explain why and when alternative and renewable energy technology can be used.

"Our results show that takes a long time before alternative fuels that can be updated can survive, at least from a market perspective," said study leader, Debbie Niemeier, professor of civil and environmental engineering at the University California (UCLA), Davis.

Niemeier and team, Natalya Malyshkina one of Niemeier team's plans to create a new device that will help policy makers set targets are realistic about the resilience of the environment and evaluate the progress made to those goals. Two key research of this new theory is the capitalization market (based on share price) and dividends from oil companies owned by government and alternative energy companies. Other analysts have previously used similar equations to predict in finance, politics and sports.

Good investors tend to put great efforts in collecting, processing and understanding information relevant to future cash flows paid by these securities," said Malyshkina.
As a result, the market assessment in the future predictions represent the largest part of investors that tend to be relatively accurate.

Niemeier said the results of this latest study is a warning against the target of renewable fuels now are not ambitious enough in preventing the community, economic development and natural ecosystems harmed because of this.

We need a stronger policy support to encourage the development of replacement technology, "he said. We need a stronger policy support to encourage the development of replacement technology," Niemeier said.

source : here translate Indonesian to english language.

Computer Recycling Green IT Expo in London, UK

Richard A Johnson recently attended the Green IT Expo in London. The aim of the conference? To showcase Green solutions to IT issues, most notably energy consumption and environmentally concious design. Here is Richards story when he attended the Green IT Expo

"Exhibiters at the conference ranged from Very PC, with their amazingly low powered desktop computers (24 watts per machine is more efficient than a laptop) to SIMMS recycling, a global recycler dealing directly with other mainstream recyclers. However, of most interest were the IT recycling companies present. As a representative in the same field, I thought it prudent to use them as a sounding board for issues I currently have with the UK's Computer Recycling industry. In effect, here's the conclusion that reflects every single recognised computer recycling company in the UK (IT-Green®, CDL, ICEX):

A combination of online marketing, Google Places and cheap (re-use) environmental licenses has given rise to small localised "recyclers" springing up throughout the UK. Potential business related clients are opting for the cheapest possible solutions when trying to recycle their computers and this in turn is leaving them open to the possibility of Brand damage, legal action and data security breaches. Recognised, professional recyclers have to of course maintain overheads that protect clients from the reality of security breaches and environmental protection and these simply are not in place with small operators that have been set up to take advantage of the WEEE directive. With less stringent environmental controls and reporting systems, those operating under section 50 exemptions are more likely to sell on waste electronics to exporters, who as highlighted by the Environment Agency have been assoiciated with organised crime.

As highlighted by Greenpeace in 2009, some 50 million tonnes of WEEE were dumped on developing countries and as I've said in previous posts, this is causing major problems, including deaths among children from lead poisoning......... "

See Full Article : Here

The Flora And Fauna Of Greek Island Crete

The Greek island of Crete does not only carry the secrets of an ancient civilization, but also puts a very rich flora and fauna on display for those who may be seeking to spend time in the nature's arm. The island is surrounded by the Mediterranean Sea waters and carries a weather that resembles with the Mediterranean and the North African both. The temperature mostly remains mild in the low-lying areas while the snowfall rarely takes place, barring some high altitude cases. The island's beaches are famous for their raw beauty and the sea resorts made along them. On the other hand, mountains are there to be trekked on, and various tour operators and hotels in Crete will offer packages for these kinds of events.

Spring brings up the best time for the Cretan flora and fauna to be explored when there is hardly any snowfall around and the rainfall has also died down. Obviously this also means the start of the tourism season in the island. The fields laden with red poppies and the air full of the lemon and orange flavors may leave you mesmerize in these days. Among many hundreds of the flora species found across the island, at least 130 wild flowers and herbs are regarded unique to it. Cretan holidays may be planned around these natural gifts provided one carefully decided about their tour plans. Often hotels in Crete will help you out in deciding about your nature-centric adventures.

The ravines and the mountain slopes are the places where one should look out for the rarest of plants found on this island. These include Organium dictamus, an herb made popular by the likes of Hippocrates and Aristotle for its medicinal use. The herb grows on steep slopes in the rocky mountains of Crete, where they won't easily be discovered by any human being. As a result, the men used to trek up and gift the herb as a sign of love to their partners in the ancient times. The name Organium dictamus comes from the mount Dikty, where Zeus, the mythological king of the Greek gods, was famously born. The evergreen Cretan Plane Tree is yet another unique Cretan species to be looked closely at. Unlike the other plane trees, which are deciduous in nature, the evergreen tree keeps itself green throughout the year.

Also found in Crete is the unique Cretan palm tree, which grows in abundance along the Vai beach. During the 70s, Hippies overcrowded this beach and left behind the dumps of garbage. Subsequently the whole area was declared a protected zone and gradually the palm tree forest and the beach were restored to their natural shape and looks over the years. These two draw in thousands of Crete bound tourists each year these days.

The Cretan Fauna is as impressive as its flora with some unique species filling up its biological chart. The Cretan wild goat leads the chart with its unusual yet impressive appearance. The animal is a protected species, and is found over a wide range. Several lizards and at least one poisonous snake do also inhabit these areas. Funnily, it was believed that St. Titus had earlier driven all the poisonous snakes off the Crete Island. The Cretan golden eagle leads the segment of birds from this area. Also found are warblers, swallows, goldfinches and some migratory birds. The voyage from hotels in Crete to the archaeological treasures across the island, and that to the thrilling beaches and the valleys carrying such a rich flora and fauna is bound to generate excitement.

Source: Free Articles

Europe Learn from Monaco How To Green in The world

European tax haven Monaco has led the small countries of the world in the campaign to heighten awareness of environmental issues since Prince Albert became Sovereign in 2005, and has launched a radical plan of its own to cut carbon emissions.

One of the first acts Prince Albert took when succeeding to the throne upon his father's death was to sign the Kyoto Protocol.

Along with the USA and Australia, Monaco was one of the few countries not to sign up to the treaty intended to cut greenhouses gases.

Included in a campaign by Prince Albert to protect the environment has been an expedition to the Arctic to see for himself how global warming has begun to melt the glaciers, and shortly after his return he started a foundation to study rising sea levels and how to address what he sees as environmental challenges.

Monaco travel guide http://www.yourmonaco.com comment that given the Principality's position in the Mediterranean, concern at rising sea levels should come as no surprise.

'There are plans at an advanced stage to build an island off Monte Carlo, which will change the Monaco map, and the district of Fontvieille is largely reclaimed from the sea.'

The island is expected to be complete in ten years time, and will include the first new hotels in Monaco for some time.

Prince Albert recently spent time with fellow royal and campaigner for the environment Prince Charles.

'Most notable of all', comment YourMonaco, 'Prince Albert chose a mansion in the Kalorama district of Washington D.C. to serve as Monaco's U.S. Embassy - Monaco's first independent embassy outside of Europe. Up to now it hasn't been necessary for Monaco to have her own representation in the U.S. - France has always looked after Monaco's interests. But it serves as a useful base for him to entertain politicans on Capitol Hill and get his environment message across. Expect to see more of Prince Albert in America in the coming months and years!'.

Monaco Weather

With Prince Albert punching above Monaco's weight abroad, he has been no less active at home to prove his green credentials, and a radical plan has been introduced to cut carbon emissions, and to reduce the number of cars on the streets of Monte Carlo.

The domestic campaign began with the Monaco Yacht Show 2005, held each September, with the event successfully becoming carbon neutral. To encourage the thousands who commute to Monaco every day from neighbouring France and Italy the railway station is one of the best in Europe, with frequent and reliable services.

'For those who work in Monte Carlo and travel in from Nice and her surrounding villages five days a week, it's both cheaper and quicker to take the train - the trains are modern and comfortable and it's rare for seats not to be available even during the rush hour', claim YourMonaco.com. 'Once people are in Monaco the local transport service is equally quick and efficient. Virtually all routes are well planned and easy to understand, and the most you have to wait for a bus is ten minutes, often it's just a couple of minutes - which isn't exactly a hardship given the weather in Monte Carlo!'

With many major companies and the banks in Monaco also looking to see how they can improve their own environmental records the business community view the steps as prudent ones.

The routes are planned to incorporate tourist needs, with many passing by the Hotel de Paris in Casino Square and the Columbus in Fontvieille, two of the best known and popular Monaco hotels. Fares have been reduced to one Euro, making public transport in Monaco among the lowest priced, comfortable and frequent in Europe.

With the overall aim to increase bus usage by 20 per cent, the Principality is also funding five new duplex trains with a thirty per cent increase in train services, and in an innovative attempt to persuade commuters to leave their cars at home will provide free electric cycles at car park schemes.

'The one time of year you might see fast cars being encouraged is of course for the Monaco Grand Prix in May', conclude YourMonaco, 'But overall it's Prince Albert who will be able to claim the winners rostrum among European leaders for the environment.'

Source: Free Articles

Improving Our World One LED Light at a Time

LED lights are a wonderful invention that has changed the way the world is lit. Not only are they long lasting, they have many environmental benefits. LED lights are four times more efficient than a regular incandescent light bulb and last 10 times as long. LED lights also use between 50 and 80 percent less energy than an incandescent bulb.

LED lights are considerably less expensive to operate, however are a little more expensive to purchase. LED home lighting requires only one third of the energy that an incandescent bulb will use. A single 18-watt LED light can replace a 75-watt incandescent and in the lifetime of the LED light, will save 570 kWh of energy. At a basic eight cents per kilowatt rate, that equals $45 dollars in energy bill savings.

By switching to low energy LED home lighting in your home, even one bulb will keep one half of a ton of carbon dioxide out of the atmosphere through the lifetime of the bulb instead of using incandescent bulbs. Switching also keeps sulfur oxide and nuclear waste out of the atmosphere as well, leading to a cleaner world and one that will last much longer. By simply switching, our environment could easily revitalize itself without having to deal with the excess carbon dioxide, sulfur oxide and nuclear waste emissions that are currently being released into the atmosphere every day. Even changing one lonely bulb in every home to LED home lighting would make a significant impact on the environment.

If every home in the United States were to switch to LED home lighting, 90 power plants could be retired, a potentially powerful impact to the long-term health of the environment. Being energy efficient and environmentally conscious doesn’t have to disrupt your entire life. The switch is as difficult as changing one light bulb in your home, the results of which would save you money on your electricity bill each month. Just one home lighting fixture, one light bulb can be a positive step forward for your household. Take a look around your home and count how many bulbs you use and consider how often you change them. Say, for example that you change a bulb every two months. Now, consider that by changing them all to LED lighting for your home, you could leave them and not have to replace them for 20 months. The slightly higher upfront costs of LED lights make sense.

LED lighting is finding its way into many niche markets. You can get a LED flashlight that also uses less battery energy, ensuring that the next time the power goes out in your home, you can be confident that your batteries will last. There are also LED lanterns that you can choose from that are ideal for camping or hunting. They last for considerably longer than other lanterns because they use 10 times less energy to run than standard incandescent bulbs and even less energy than a kerosene lantern.

For LED home lighting, there are many options available other than just bulbs. You can find LED light fixtures for your home, indoor and out, that will provide low energy, environmentally-friendly lighting that can save you money on your energy bill.

We all are challenged to do our part to conserve energy. By making small adjustments to the way we live, we can begin to make an impact on our world. One small change we all can make is to switch our home and outdoor light fixtures to LED light options. There are a large number of options for LED home lighting and LED camping and hunting outdoor equipment available on the market, all of which provide the energy efficiency benefits inherent in LED products. The benefits can become apparent very quickly as we begin to see our energy bill costs reduce over a period of a few months.

Spa Water Treatment Options

Since mankind decided that hot tubs would be fun we have had to face the challenge of keeping that water clear and safe. Chlorine and Bromine have been in use since almost day one. Both have their advantages. They kill everything. The down side is also that they kill everything. By that I mean that Chlorine and Bromine are both caustic chemicals. That is both how they function and what makes them less desirable. Not only do they kill germs and bacteria but they are harmful to your skin, hair, bathing suits, spa jets, pump impellers, pets and environment. With the heightened awareness of the environment and our own physical health, there has been a wide variety of alternatives to the old standards.

Minerals can be used to treat the spa water with less harmful effects. First, Copper can be used to treat your water and keeps stuff from growing in your water. It is a lot safer for your skin, hair and health, and won’t cause premature break down of your pump and jet components. Still, because it does a good job of killing things you need to use care when you empty your spa. Some areas have banned using copper to treat water because if it does end up in the water shed it will kill fish and algae.

Another popular choice is Silver and zinc. I would just recommend sticking with the liquid based versions. You should never use anything directly in the filter area of the spa because you do not want the risk of anything being sucked into the water pump.

Ozone can also be effective in water treatment. It works by exposing ultra violet light to air which forms an energetic oxidizer. It destroys algae, viruses and bacteria. Again you should know how to use your system properly. Avoid over exposure to ozone while using the spa. No ozone bubbles should be entering the spa during occupancy. Also you should not be able to smell ozone while you are in the spa.

One thing that a lot of spa owners forget about is checking your spa water pH. Maintaining the proper pH level can greatly improve the effectiveness of the water treatment. Spa water that is not properly balanced can cause irritation to eyes, and mucous membranes. Just because you keep a handle on your chemical treatment, do not get lazy about checking the pH.

Finally, circulation of the water. Stagnant water, especially warm stagnant water is a breeding ground for life. Regular circulation of the water for significant periods of time will reduce the need for chemicals and increases the effectiveness of the spas filtration. It is better overall for your spa pump to run for three to four hours at a time for two to three times per day as opposed to running for thirty minutes at a time ten times per day. If your spa only runs for thirty minutes it does no have enough time to properly filter all the spa water.

The bottom line is that yo want to be able to enjoy your spa for years to come. However like your car, regular maintenance can have a profound influence on that. If you maintain your car, change the oil, replace the filters, rotate the tires, you stand a much better choice of enjoying your vehicle with fewer unpleasant surprises. The same goes for your spa.