CAM DESIGN HANDBOOK in Software

Implementation barcode data matrix in Software CAM DESIGN HANDBOOK

which the transmit and receive operations take turns. Concerning the optical connections supported by the TC1540, if you again refer to Figure 8.2, you will note two pairs of optic connectors at the lower portion of the figure. The pair of connectors on the right side are ST fiber-optic connectors and represent the primary optics that are enabled by one DIP switch. Thus, a pair of TC1540 fiber-optic modems requires two fibers, one for transmission from one modem to the other while the second fiber enables one modem to receive transmission from the other device. The second pair of connectors to the left of the primary connectors represents an optional optic redundancy feature that is included only when a dual-optic TC1540 fiber-optic modem is ordered. Here the second connector pair can be obtained as FC connectors and provides a mechanism for supporting critical applications. The TC1540 supports multimode fiber at wavelengths of 850 or 1310 nm as well as single-mode fiber at wavelengths of 1310 or 1550 nm. LED INDICATORS The LED indicators visually denote the presence of power to the unit, an alarm indication which results in a flashing signal when the optical signal is lost, as well as the transmission and reception of data on both the electrical interface and optical interface. Thus, the LEDs provide a visual indication of the operational state of the modem. In fact, if you obtain a pair of TC1540 fiber-optic modems with dual-optic connectors and one cable breaks, not only do the modems switch over to the secondary link but, in addition, the alarm LED will flash to indicate the cable break. TRANSMISSION DISTANCE While the primary use of fiber-optic modems is for use within a building, most such devices permit support for transmission on a university or other campus or even within an industrial park. For example, the TC1540 supports a transmission distance of up to 3 km on multimode fiber at a wavelength of 850 nm and up to 4 km when a wavelength of 1310 nm is used. When singlemode fiber is used at 1310 nm, a transmission distance of 24 km becomes possible. Because the optical loss budget, including connectors and fiber loss, determines whether it is possible to reach a predefined range, it is important to check the connectors as well as consider the total loss of the link. Concerning the latter, Table 8.2 indicates the approximate loss per kilometer that you can use for four different types of optical cable.

10:

Graphics should be created in 24-bit mode. Choose RGB colorspace (or YUV colorspace, if available) rather than CMYK or other print-oriented colorspaces. The file format should be either PSD, PNG or JPEG. PNG is the basic format and it has an advantage over JPEG in that it has an alpha channel. Whichever format(s) that you use is ultimately determined by your authoring system or programming framework. Please be aware that JPEG compression can cause artifacts that may be compounded by MPEG compression. If you must use JPEG, choose the highest quality level that is compatible for BD. With Photoshop, for some odd reason, this means choosing a quality level of 6 to ensure compabitility. HD video uses the ITU-R BT.709 colorspace (RGB values in the 0-255 range). While any SD mode video on a disc is ITU-R BT.601 colorspace (RGB values in the 15-235 range) and saturated colors, especially bright reds and yellows, will "bleed" on the display. With a 1920 1080 display many, if not all, of the color issues that existed with DVD are gone. The only thing to keep in mind is that there are multiple playback resolutions 1920 1080, 1440 1080, 1280 720 and 720 480. Choose and then test the resolutions that you want to support with your design. It is possible to use some very small fonts with the HD resolutions. These fonts may not be readable on lower resolution monitors or at the viewing distance of a user's display.

Table 9-2

The prototype for bsearch( ) is in <stdlib.h>. The bsearch( ) function performs a binary search on the sorted array pointed to by base and returns a pointer to the first member that matches the key pointed to by key. The number of elements in the array is specified by num, and the size (in bytes) of each element is described by size. The type size_t is defined as an unsigned int in <stdlib.h>.

Express-G (US units)

that it s horizontally centered on the first object. The zero horizontal point is now at the center of the first object.

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Isolation bearings should be considered when column and footing design is substandard to resist seismic forces and moments and when rocker bearings are used in seismic zones. Column and footing retro t are more expensive than seismic isolation. Isolation bearings have the following two functions: 1. To dissipate seismic energy by increasing the damping of the structural system. 2. To create a more exible structural system which experiences less acceleration. Three broad categories of isolation bearings are available in the U.S. market. They are: Lead rubber bearings (LRB) High damping rubber bearings (HDR) Sliding bearings. The use of isolation bearings offers force reduction and is on the increase: Force reductions of the order of 3 to 6 are achievable using isolation strategies. Even for longer return period seismic events the need for retro tting substructure elements would be eliminated. Multi-rotational isolation bearing characteristics allow the distribution of lateral loads in proportion to the lateral strength of the existing substructure units. However, suf cient rigidity should be provided under wind and braking loads to keep displacements to within tolerable limits. Caltran and the Seismic Retro tting Manual for Highway Bridges (FHWA RD-94-052) discourage using isolation bearings in bridge foundations resting on soft soil or for bridges with tall exible piers. The development of appropriate performance speci cations is provided by the vendors and major manufacturers of isolation bearings. Prices for 100K to 250K bearings range from $2500 to $5000 each, respectively, without the sole plates and masonry plates, which are not supplied by manufacturers. Sliding isolation systems can be many times more effective in damping as compared to lead rubber isolators. Due to release of seismic forces, foundation and column design are more economical. Friction pendulum bearings are seismic isolators that are installed to lengthen the isolated structure and minimize the strongest earthquake forces.

Now that the primary appliance is ready, turn on the secondary appliance. If you happen to be at the console of the primary when the secondary finishes booting up, you see the following message displayed on the primary:

You can use a parameterized method to add a new feature to the Vehicle class: the ability to compute the amount of fuel needed for a given distance. This new method is called FuelNeeded( ). This method takes the number of miles that you want to drive and returns the number of gallons of gas required. The FuelNeeded( ) method is defined like this: