By Brian X. Chen
Even Steve Jobs didn't recognize what he had on his arms whilst he introduced the unique iPhone as a mix of a trifling "three innovative products"--an iPod, a cellular phone, and a keyboard-less hand-held machine. as soon as Apple brought the App shop and opened it as much as outdoor builders, in spite of the fact that, the iPhone grew to become in a position to serving a swiftly turning out to be variety of functions--now greater than 350,000 and counting.
But the iPhone has implications a ways past the telephone or device marketplace. in truth, it's beginning easy methods to what Brian X. Chen calls the "always-on" destiny, the place we're all consistently hooked up to an international net through versatile, exceptionally able contraptions that permit us to do something, every time, from anyplace. This has far-reaching implications--both optimistic and negative--throughout all parts of our lives, establishing the door for exceptional own and societal advances whereas most likely sacrificing either privateness and inventive freedom within the process.
Always On is the 1st ebook to examine the astonishing and expansive importance of Apple's awfully robust vertical company version, and the long run it portends.
Read Online or Download Always On: How the iPhone Unlocked the Anything-Anytime-Anywhere Future--and Locked Us In PDF
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Extra resources for Always On: How the iPhone Unlocked the Anything-Anytime-Anywhere Future--and Locked Us In
Org/about-asme/terms-of-use 26 ■ Pipeline Pumping and Compression Systems—A Practical Approach Whether centrifugal or reciprocating, compression can be installed in a number of arrangement/combinations. The following lists the most commonly used configurations, depending on the flow requirements and are described in detail in Chapter 4: series arrangement parallel arrangement series-parallel arrangement Compressor stations generally include the above facilities laid out systematically in an enclosed area that considers safety and security.
Aerial coolers 3. Motor control center (MCC)/control facilities 4. Inlet/discharge gas/gas cross exchanges 5. Inlet Scrubber 6. Pipeline pigging facilities 7. Fuel gas conditioning 8. Construction camp (temporary) 9. Utilities 10. Mainline block valve/blowdown Facilities 11. Power generation 12. org/about-asme/terms-of-use Introduction to Pipeline Systems ■ 27 13. 14. 15. 16. 17. 18. 19. 20. General warehouse Cold storage Satellite/communications Lay down area Living quarters Helipad Diesel tanks/transfer pumps Incinerator Although more southern stations feature normal air cooling, those in the north where permafrost is encountered require facilities such as gas-to-gas exchangers or refrigeration.
If either the pump or system curves are changed, the operating point moves accordingly. If the lines cross at a shallow angle, or even worse, at two separate points, the operating point may be uncertain. The practical result is unstable operation, which must be solved by physically altering pump or system, thus changing the relevant curve shape. The required operating point is obtained by adapting the pump to the specified operating conditions. org/about-asme/terms-of-use Introduction to Pipeline Systems ■ 13 Of importance is the fluid characteristics when selecting a pump.