Portable System

There is a trend in the last years to extend the application range of metal-ceramic tubes also to medium power portable equipment 160kV to 300kV portable systems are well known in the market. 

The HILL-SCAN 30XX boards can be used in different PCs. Desktop- and tower-PCs as well suited for laboratory uses. For in-field inspections rugged notebooks and portable PCs are advantageous. A typical portable system is shown in Fig. 2 (USPC 3010), used in MUSE (Mobile Ultrasonic Equipment). This portable PC not only contains the boards for ultrasonic testing but also a controller with power supply for stepper motors, so that a manipulator can be connected directly. The MUSE system is enlarged with a water circulation system which enables a local immersion technique" for in-field inspections. A typical result is shown in Fig. 3, which presents a D-scan of a CFRP- component in RTM-techniques. The defect area caused by an impact is clearly indicated. The manipulator is described in [3]. 

Ridge and furrow, sprinkhng (fixed or portable systems), tank-truck spreading, subsurface injection. 

Mobile exhaust or supply systems also include portable systems—for example, the systems consisting of a fan and a flexible tube used in construction work, either for exhausting or supplying air in work areas without any ventilation system. The work area must have some type of connection, such as windows, to the surroundings. 

In analyses where molecular masses are being matched, more accurate mass measurements provide more reliable matches and identifications.26,65,66 In a reference laboratory the mass accuracy to several decimal points, provided by a Fourier transform ion cyclotron resonance mass analyzer, may be desirable. In field or portable systems there is usually a trade-off in mass accuracy for size and ruggedness. Reliable identifications can be made with moderate mass accuracy, even 1 Da, if a large enough suite of molecular ions is recorded and used to search the database. If both positive ion and negative ion spectra are... 

Standards Development Handheld Systems LIL, CSA Portable Systems CSA. UL. CGA Handheld Fuel Containers JJL, CSA, CGA Portable... 

Canadian interests span into hydrogen production, delivery and utilization, primarily in fuel cell applications in transportation, stationary and portable systems. Furthermore, codes and standards for hydrogen systems are an important area of activity. The range of future electrical requirements for early adopters, such as the military, is very wide with numerous applications for various electrically powered systems. The introduction of hydrogen as an energy carrier into the commercial and military sector offer similar and sometimes unique challenges in all the areas discussed. 

Despite the fact that much effort has been made to model the DMFC system, considerable work remains, particularly in support of the emerging portable designs and systems. Few have treated the dominating effects of two-phase flow. No model to date has sufficient detail to provide a microfluidic theory for portable systems including effects of channel geometry and wettability characteristics of the GDL on fluid flow in the anode or cathode. Modeling studies are needed to fully elucidate the intricate couplings of methanol, water, and heat-transport... 

Foam can be applied with fixed, semi-fixed, or portable systems. 

Portable Systems NFPA 10—Standard for Portable Fire Extinguishers... 

Portable systems must operate on a portable power source. Often this simply means batteries. When heating becomes a part of the operating sequence, batteries can be consumed quickly. A well-defined energy budget is necessary early in the design process. 

Portable systems are often introduced into small spaces in search of the quarry. They also tend to be handled rather roughly by their operators. Current trends in microminiaturization offer relief to the system designer in both these areas. 

Chapter 10, Ion Mobility Spectrometry, describes one of the most commonly used technologies in chemical sensing systems, with specific application to explosives, the one perhaps currently most used in portable systems. 

As noted earlier, on-line process monitoring is among the application areas that can benefit most from the use of sensors provided they can be incorporated into portable systems. Electrochemical sensors are generally more suitable for these applications, even though optical sensors can also be readily adapted for this purpose (e.g. by using LEDs or photodetectors instead of conventional photometers) at the expense of somewhat degraded spectral resolution and sensitivity. 

A 1995 evaluation prepared by MSRDI and the Gas Research Institute (GRI) estimates that the capital costs for a portable MSRDI combination technology mercury treatment system would be approximately 400,000. Direct operating costs for a portable system controlled by two technicians and a supervisor were estimated to be 1600 per day of operation, assuming a treatment rate of 2 to 4 tons of contaminated material per day per site. Overall operating costs were estimated to range from 400 to 800 per ton, per site, including mobilization and demobilization costs (D16195P, p. 35). 

Based on costs estimated for the SITE demonstration, operation of a PACT-2 portable system was estimated to cost 30% more than a PACT fixed facility. This is an approximate estimate that assumes 2000 tons of waste require treatment and operators cost 60 per day (D104585, p. 24). 

Procedure. The field-portable system was taken to a grassy field where pesticides were extracted from a soil sample spiked with 100 /tg each of 18 organochlorine pesticides. The extraction from the 2.5 ml cartridge was performed at 55°C, 5000 psi, with 30 ml of CQ in 15 minutes. The collection solvent was hexane. 

Portable Systems These are systems in which the foam-producing equipment and materials are transported by hand. 

Leak detectors may be divided into two general categories, fixed systems and portable systems, as illustrated in Figure 6.1. 

Fig. 10.17. Philips incorporated a monochrome display in a shaver that came on to the market in September 2002, Fig. 10.18. OSRAM Opto Semiconductors introduced evaluation kits for a 128 by 64 pixel monochrome Pictiva OLED display in 2003, Fig. 10.19. Larger colour, video rate displays for use in portable systems are under development, Fig. 10.18. Polymer emissive displays appear to be well placed to make a considerable impact on the display market.

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