The U.S. Industrial Gas Manufacturing Industry report, published annually by Barnes Reports, contains timely and accurate industry statistics, forecasts and demographics. The report features 2010 current and 2011 forecast estimates on the size of the industry (sales, establishments, employment) nationally and for all 50 U.S. States and over 900 metro areas. New to the report this year are: financial ratios, number of firms and payroll estimates....more
In any discipline, you will have what many think of as the purists. Purists are those who revere the way things have always been done and view new innovations in the field as upstarts and obviously of poorer quality than the tried and true methods.This is nowhere more true than photography. For decades the film and chemical processing method has undergone continual refinement to achieve higher and higher levels of sophistication and to find...more
The Choice for Digital Oscilloscopes Ⅰ.Overview Digital circuit is developed rapidly in the eighties, whose testing tools - digital oscilloscope. They are springing up like mushrooms. As the price of a digital oscilloscope is more expensive than an analog oscilloscope. So we should choose a digital oscilloscope according to our needs. We shouldn't go after high–index blind, otherwise will make a great unnecessary waste. The price of a low level oscilloscope is out of line with the high-end quality one. The difference between them is almost 50 times in the price, among (8,000-50 million) RMB. Ⅱ. How to choose is reasonable 1. Bandwidth If you want to accurate the relation between the selection bandwidth and the highest frequency of the signal. First, we look at the following example: a 50MHz pulse signal. From the graph which on different bandwidth oscilloscope, we should choose the bandwidth of the oscilloscope 3-5times as the signal frequency and accurate measurement 8-10 times or more as the signal frequency, as in order to ensure the extension of the test signal amplitude and increase the accuracy. 2. SamplingSine Wave: More than 5 samples / cycle (general...more
Heating and air conditioning shops are plentiful around the country, full of professionals who are ready and willing to help you with your heating and air conditioning needs. They can handle nearly everything that is related to heating and cooling, helping to keep your home at a comfortable temperature.These different heating and air conditioning...more
Beyond Air Conditioning: Keeping Homes Cool If you have a new energy-efficient central air conditioning system, your cooling costs are already lower than ever before. But did you know there are other active steps you can take to reduce those costs even further? Here are some ideas that go beyond simple air conditioning that are affordable...more
Hiring the right electrician takes some time. However, it is necessary to make sure the person has the right skills and experience to complete the job correctly. Making sure your building is safe with quality electrical work is important. Do not make the mistake of hiring someone who is offering a great deal but may not know how to properly do the work you are looking for.Residential electrical work differs greatly from commercial electrical work. An electrician may specialize in one area or all areas. Many local governments mandate that businesses must hire a licensed electrician when doing any electrical work in commercial buildings, especially those used by the public.Commercial buildings, including industrial buildings, have different rules, regulations and codes that a business must comply with. If you make the mistake of hiring an electrician who specializes in just residential electrical work or is not familiar with all the various codes and regulations, then you could be facing huge liability issues if someone gets hurt.An electrician working on a commercial or industrial building must be able to correctly size loads. Electrical systems can easily be overloaded in buildings...more
Fences not only make your home secure against intruders and trespassers but also reflect your choice and style. They provide you the much needed security without marring the beauty of your yard or garden. In recent years, popularity of aluminum...more
Golf Fitness Multipliers The cool part about fitness multipliers is that you don't have to dread your daily workouts because you do them throughout the day. In other words, you include your various fitness routines - aerobic, muscular,...more
Longwan Intelligent Community Scenic Design of Digital System Solutions - Intelligent Community, Case - Smart Home Industry HC intelligent home network Project LocationCore positioning: Lianyungang City's first high ecological humanities...more
Benefits Of Proper Air Conditioning If you are looking for an appliance to cool your surroundings and in-house temperature instantly, then go for an air conditioning system. These days, an air conditioning system is used extensively in homes...more
Key Points for Choose Digital Camera Do you have decided to get the digital camera you wanted for a long time? Which should eventually choice: Canon EOS, Nikon CoolPix, Sony, Casio, Kodak or a Samsung one? The list is endless, what matters is...more
The Web Design and Development Company working for you must be one that has access to all the latest Web Design tools and platforms. The competition in the online world is tougher with almost everyday new participants making their power entries. But...more