C# 3.0: A Beginner s Guide in C#.net

Integration code 128b in C#.net C# 3.0: A Beginner s Guide

his chapter examines the String class, which underlies C# s string type. As all programmers know, string handling is a part of almost any program. For this reason, the String class defines an extensive set of methods, properties, and fields that give you detailed control of the construction and manipulation of strings. Closely related to string handling is the formatting of data into its human-readable form. Using the formatting subsystem, you can format the C# numeric types, date and time, and enumerations.

6. An even number of stages in an amplifier strip should be avoided, since this can cause in-phase feedback to the chain s input either through circuit trace interaction or conductive dirt contamination. 7. Circuit input and output traces should be kept separated from each other to avoid bypassing the circuit itself or creating feedback. 8. Employ only components made for RF service, as the parasitics and low Q that most affect wireless circuit design are due to real-world component inadequacies of inductors and, to a more limited extent, capacitors and resistors. These problems involve: a. The capacitance from turn-to-turn in an inductor an effect lessened by smaller diameter coil turns b. The inductance inherent in all leads (a 1 4-inch lead of a through-hole capacitor can reach 10 nH, while even leadless capacitors can still have inductances of 1 nH) can be somewhat alleviated by running capacitors in parallel c. The capacitance to ground natural to all components lessen by employing smaller components d. The mutual coupling of inductors decrease by not running inductors in parallel, only at right angles e. Limited inductor Q helped by using only a manufacturer s specific high-Q coils, by winding your own coils in which the length is equal to the diameter, or by utilizing a distributed inductor Surface mount components are all that should be considered at frequencies above a few 100 MHz. Nonetheless, not all SMDs are created equal when it comes to high-frequency operation. The only resistors, inductors, and capacitors that should be adopted for microwave operation are those that have been specified by the manufacturer to dependably operate above the design frequency without hitting any series or parallel resonances (except in certain coupling or bypass applications). Since many resistors are not specified for their maximum frequency of operation, they must sometimes be selected only on the basis of the type of high-frequency resistor design employed; usually thin- and thick-film types can be depended on to reach to very high frequencies. Still, as discussed in a previous chapter, as a resistor s resistance values are increased, its ability to operate at microwave frequencies is decreased (Fig. 10.11). In fact, for sensitive or very high frequency circuit operation, candidate RF resistors should be tested for any resonances, as well as a lack of major resistance changes versus frequency, to at least 20 percent above the desired frequency of operation. As stated, all active and passive components that are subjected to RF must be able to properly operate at the desired frequency, but components that are out of the RF path may be low-cost, low-frequency parts. This will become especially meaningful in DC bias circuits (Fig. 10.8b) where the RF choke (RFC) must stop most of the RF from entering the bias supply, with any that gets through being bypassed by the high-frequency capacitor, CB1, to ground,

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DaaS offers these benefits: Ease of use There are no servers to provision and no redundant systems to worry about. You don t have to worry about buying, installing, and maintaining hardware for the database. Power The database isn t housed locally, but that doesn t mean that it is not functional and effective. Depending on your vendor, you can get custom data validation to ensure accurate information. You can create and manage the database with ease. Integration The database can be integrated with your other services to provide more value and power. For instance, you can tie it in with calendars, email, and people to make your work more powerful. Management Because large databases benefit from constant pruning and optimization, typically there are expensive resources dedicated to this task. With some DaaS offerings, this management can be provided as part of the service for much less expense. The provider will often use offshore labor pools to take advantage of lower labor costs there. So it s possible that you are using the service in Chicago, the physical servers are in Washington state, and the database administrator is in the Philippines. There are a number of providers out there, but let s take a closer look at two of the biggest players.

Often, the applications you want are already out there. However, it may be the case that you need a very specific application. And in that case, you ll have to commission its development yourself.

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Digital cameras and modern lenses record every detail in an image. This is a good thing when you re photographing landscapes, but not so good when you re photographing someone with facial flaws, such as crow s feet. You can remove or reduce these features by implementing some techniques used by fashion and glamour photographers. Photoshop Elements has two wonderful tools for retouching images: the Healing Brush tool and the Spot Healing Brush tool.

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the new sales compensation program to the sales force. Make sure all levels of sales management participate in the process. Use personal communication whenever possible. Your actions will tell the sales force how to act if you think it s important, they will think it s important. If you don t think it s important and you suboptimize your communication opportunity your salespeople won t think it s important either.