Thursday, November 5, 2009

Chemical Analyzers

Performs a variety of wet chemical titrimetric analysis using pH, ORP and other sensors.

  • Analyzer automatically
  • Retrieves & prepares samples
  • Calibrates
  • Titrates
  • Calculates & verifies results
  • Initiates chemical replenishment
  • Purges sample lines
  • Cleans reaction cells
  • Process
  • Plating
  • Anodizing
  • Cleaning / Etching
  • Benefits
  • Tighter process control provides more consistent product
  • Quicker control response prevents marginal and out-of-spec conditions
  • Reduced chemical handling improves operator safety
  • More complete and consistent process history

Features

  • Compact and accessible drawer design
  • Keypad for local monitoring and control
  • Modular and expandable design
  • Built-in diagnostics
  • Verifies results with redundant analysis, data comparison, and user defined acceptable ranges

Biofuel Vehicles to Put Our Health at Risk

The latest scientific research reveals that biofuels used in vehicles may be more harmful for human health than the petrol used today. By 2020, 10% of all transport means should run on biofuels as agreed by the EU.

The researchers invented a special computer model to determine air quality in 2020. The model showed that ozone level in some regions would grow if bioethanol was used for all cars. It would cause more ailments and asthma attacks. There naturally appears the question – why to use biofuels if it is not beneficial for the environment and human health in particular?

As showed by the study, the smog level increase meant 200 deaths more every year in the US, with only Los Angeles at risk of 120 deaths. Even if to take into account that ozone increase in some US regions would be partially compensated by its decrease in other regions, in general there would be over 700 extra complaints to accident and emergency and almost 1000 extra hospitalizations of people suffering from asthma and other respiratory ailments.

The scientists determined that the use of ethanol reduces levels of two carcinogens found in atmosphere, while increases levels of other carcinogens. Thus, cancers caused by atmospheric carcinogens would remain at the same level as caused by pollution in case of petrol fumes.

Biofuels such as ethanol and diesel are mainly produced from corn, sugarcane and rapeseed. They provide a way of diminishing greenhouse gas emissions if compared to conventional fuels. Despite the fact that biofuels produce carbon dioxide, the plants growing leads to absorption of a similar amount of the gas from the atmosphere. According to a government report, the use of biofuels would result in emissions' reducing by 50-60 % compared to petrol fuels. However, it would not be possible to have all vehicles on ethanol fuel as too much land would be required for growing the plants.

At the moment some scientists also consider the opportunity of converting all vehicles to battery-electric. The necessary amount of electricity would be supplied by wind energy. The use of battery-electric cars would keep the mankind away from 10,000 annual air pollution deaths as well as 98 % of carbon emissions produced by vehicles.

If we tried to make the conclusion, there would be no clear answers so far whether the use of biofuels will be somehow better for people's health. The controversial issue is still to be thoroughly studies by scientists.

Tuesday, November 3, 2009

Spectrum Analysis (Signal Analyzer)

It can be found all over the world: test equipment from Rohde & Schwarz. Wherever electronic signals are generated and measured. We offer cost-effective solutions for any application from DC well up into the microwave range. The product portfolio includes - besides spectrum analyzers - a signal analyzer for analysis in frequency, time, and modulation domain in one box (FSIQ) or in a high dynamic range and demodulation bandwidth (FSQ) and different vector signal analyzer (VSA) options.

In the frequency domain the R&S FSIQ, a signal analyzer for the 3rd mobile radio generation, measures intermodulation and harmonic with great accuracy. The excellent dynamic range and the optimized phase noise values make the FSIQ an ideal tool for ACPR (Adjacent Channel Power Ratio) measurements in all mobile radio systems and in particular for W-CDMA. The maximum ACPR value for W-CDMA in 4.096 MHz bandwidth is 75 dB and is already attained at -12 dBm input level.
Phase noise, intermodulation and spurious suppression all play a role in the measurement of ACPR (adjacent-channel power ratio). The integrated vector signal analyzer (VSA) makes it possible to measure signal distortion caused by the device under test quickly and reliably. The IQ signal characteristics can precisely be measured with the aid of the marker functions. Imbalance of the modulator under test or spurious emissions can quickly and reliably be determined.
The FSIQ comes with hardware options harmonic mixer 40 GHz to 60 GHz and harmonic mixer 50 GHz to 75 GHz.

The Signal Analyzer R&S FSQ is based on the tried and tested R&S FSU family and extends the IQ demodulation bandwidth to 28 MHz. The FSQ features software for measurements on 802.11a WLAN, IQ data extraction, fast TOI (Third-Order Intercept Point) measurement functions, 8566 replacement, 8563 replacement etc. (the Third-Order Intercept Point (TOI) is only for the spectrum analyzer function)
For measurements on 802.11 signals the R&S FSQ offers application firmware for 802.11a TX measurements R&S FSQ-K90 and windows-based WLAN test software for 802.11a, 802.11b and 802.11g TX measurements. It also comes with the vector signal analyzer (VSA) option FSQ-K70. This firmware performes the amplifier distortion measurements on modulated signals and has 28 MHz IQ demodulation bandwidth.

Friday, September 25, 2009

Hydrogen Bike Better Than Electric?

Another great bike has recently made its appearance this year. In Shanghai at the 9th China International Exhibition on Gas Technology, Equipment and Applications the hydrogen prototype bike was introduced.

Shanghai Pearl Hydrogen Power Source Technology Co. is the innovative company behind this new bike. In the future they hope to expand their technology to other forms of transportation such as golf carts and motorbikes.

The hydrogen fueled bike can go about 60 miles at about 15.5 m/h. Not to bad for a bike. Don't you think?

The bikes' components are also lighter than those used in electric bikes. What other advantage does this hydrogen-fueled bike have over an electric one? The hydrogen-fueled bike has a battery tank and a pair of hydrogen gas bottles that take only 30 minutes to refill, whereas an electric bike can take up to 3 hours to recharge. Owners just need to order the gas refills from local suppliers

The cost? This innovative, but not so pretty puke-green bike is at a price of $2,632, but mass production should help the price go down.

IRiver NV Mini Bike Edition--The Navigation System For Your Bike

Based on iRiver's NV car navigation system, the NV mini bike edition takes the nav system to the car's two-wheeled cousin. While it looks rather huge and dangerous in the close-up below, it's actually much more manageable than it looks and is comparable in size to other bike computers and GPS units.

Like the NV, the unit uses a touchscreen, which is scaled down to a 3.5-inch 320 x 240 size. However, iRiver has scaled up the sizing of the interface to make it more friendly to glove-wearing cyclists. With that interface, cyclists get all kinds of functions including GPS, music playback and stat calculation such as speed, distance and time. The iRiver even offers Points of Interest, providing quick info access to places like bike shops, coffee shops and restaurants. It includes both built-in speakers for annoying the neighborhood and a 3.5mm jack for those that prefer to keep it personal.

Unfortunately for us cyclists and bikers here in the States, this one is only available in Korea at the moment, and there's no word if it will make it over. Given the trendiness and popularity of biking, though, we can hold out some hope. It sells for the equivalent of $156--not bad for what's basically a GPS, multimedia player and cycling computer rolled into one.

Wednesday, September 9, 2009

Human Hair in Solar Panels Make Solhair Power

Another reuse for human hair has been discovered thanks to a young bright man from Nepal. Using human hair, the young man and his friends, invented a method to power more affordable solar panels for their village and hopefully the rest of the world. Is it Solhair Power?

The young man, Milan Karki, comes from a village in rural Nepal, one of the poorest countries in the world. In Nepal it is difficult for many to access electricity. For those fortunate enough to have electricity, shortages are still a big problem.

Solar panels would provide the much needed electricity for places like Nepal all over the world, but solar panels do not come cheaply. They are expensive to make and maintain. So, as part of school project and a life long dream, Milan with his friends, came up with an idea to replace silicon with human hair, an inexpensive conductor.

In doing this solar production would be cheaper. Replacing the worn used hair with new hair when needed is also said to be easy and could be done by anyone, making maintenance cheaper as well. The question is, does it really work? Yes.

Milan has managed to charge a mobile phone
as well as run a pack of batteries that can provide light all evening. His hairy solar panel produces 9 V of energy and costs about $38 to make. On a grand scale or even a small scale what does this mean for the rest of the world? Obviously if Milan succeeds and his invention is successful and mass-produced the world will have an inexpensive solar powered option that it currently does not have. The poorest parts of the world could have access to electricity and the rest of the world could inexpensively convert to solar power.

Sunday, August 30, 2009

Useless Space Money Invented


Travelex, a foreign exchange company, has invented something it calls the "Quasi Universal Intergalactic Denomination," which is to say, space money. As the abbreviation would be "Quid," there’s an obvious British element to it, but apart from that particular note of fantasy, the thing is appropriately designed for use in space. It’s smooth, so as not to tear space-suits, and contains solid-state data, immune to cosmic radiation.
If you’re wondering why people would be (a) spending money while wearing NASA space suits and (b) while floating in space rather than inside some kind of space-shop… Well, I don’t think you’re supposed to be wondering that.
It’s about $11 a "quid," according to the BBC. That would be the space Quid, not the real one, though if the last few years are any indication, out future’s got that exchange rate in store for us too.

Biofuel Vehicles to Put Our Health at Risk

The latest scientific research reveals that biofuels used in vehicles may be more harmful for human health than the petrol used today. By 2020, 10% of all transport means should run on biofuels as agreed by the EU.
The researchers invented a special computer model to determine air quality in 2020. The model showed that ozone level in some regions would grow if bioethanol was used for all cars. It would cause more ailments and asthma attacks. There naturally appears the question – why to use biofuels if it is not beneficial for the environment and human health in particular?
As showed by the study, the smog level increase meant 200 deaths more every year in the US, with only Los Angeles at risk of 120 deaths. Even if to take into account that ozone increase in some US regions would be partially compensated by its decrease in other regions, in general there would be over 700 extra complaints to accident and emergency and almost 1000 extra hospitalizations of people suffering from asthma and other respiratory ailments.
The scientists determined that the use of ethanol reduces levels of two carcinogens found in atmosphere, while increases levels of other carcinogens. Thus, cancers caused by atmospheric carcinogens would remain at the same level as caused by pollution in case of petrol fumes.
Biofuels such as ethanol and diesel are mainly produced from corn, sugarcane and rapeseed. They provide a way of diminishing greenhouse gas emissions if compared to conventional fuels. Despite the fact that biofuels produce carbon dioxide, the plants growing leads to absorption of a similar amount of the gas from the atmosphere. According to a government report, the use of biofuels would result in emissions' reducing by 50-60 % compared to petrol fuels. However, it would not be possible to have all vehicles on ethanol fuel as too much land would be required for growing the plants.
At the moment some scientists also consider the opportunity of converting all vehicles to battery-electric. The necessary amount of electricity would be supplied by wind energy. The use of battery-electric cars would keep the mankind away from 10,000 annual air pollution deaths as well as 98 % of carbon emissions produced by vehicles.
If we tried to make the conclusion, there would be no clear answers so far whether the use of biofuels will be somehow better for people's health. The controversial issue is still to be thoroughly studies by scientists.