Design frequency

A wide range of shapes can be induction hardened and a system for quenching can be incorporated into the coil assembly. The process can be automated to harden components in an essentially continuous manner. The case depth is controlled by the coil design, frequency, power, and time of apphcation. 

The design frequency of regeneration is normally from three to six months for semi-regenerative units, and one reactor every 24 hours in cyclic units. For either case, an increase in regeneration frequency would result in a reduction in average catalyst coke level. Thus, gasoline yields would increase and catalyst requirements decrease. 

The ferrimagnetic resonance phenomenon in a ceramic ferrite in the form of a strip 70 x 5 x 2 mm is to be exploited in a particular microwave device, with the static field applied along the length of the strip. If the design frequency is 2 GHz and the coercive field for the ferrite is 100 Am-1, what limiting value is placed on the saturation magnetization ... 

This area documents two important elements when (how often) will you measure the process to determine if it s in control, and where will the measurement data be recorded Depending on what you re measuring, the when may be a designated frequency (daily, weekly, etc.). Or, it could be based on the number of transactions (e.g., products manufactured or customers served). 

It should be mentioned, herein, that the selection of the correct design frequency around which the above schemes exhibit their enhanced behavior comprises the most serious factor for their broadband utilization. 

Hence in one case, second-order formal accuracy is imposed to spatial operators (A +3Ej = 1), whereas in the other the vanishing of the first term of error v is required at a second design frequency 002 co, i.e., K. ) oj2) = 0. To mitigate the more negative influence of the dispersion error at higher than at lower frequencies, 002 is chosen lower than a>. ... 

In Figure 2.12, the dispersion error versus cells per wavelength is examined. As anticipated, the controllable error estimators induce a minimum error at the design frequency points. Furthermore, they achieve a constantly reducing error toward lower frequencies and most importantly they remain more accurate than the conventional (4, 4) schemes in the high-frequency band. 

For illustration, let us estimate the dispersion error of the aforementioned narrow-band technique and compare it with the one induced by the wideband method of (2.107)—(2.115). The cell dimensions are chosen as Ay = 2Ax and T2D = 0-85 in (5.46). Figure 5.5 gives the results for two mesh resolutions with respect to Ax. In contrast with the performance of the latter scheme, the narrow-band approach achieves a remarkable reduction around the design frequency, whereas its accuracy deteriorates at finer resolutions. This is, however, not a serious shortcoming, since a given computational domain appears to have a smaller electrical size at lower frequencies and, consequently, the dispersion error is not as considerable as in the high-frequency band. Moreover, it is noteworthy to observe that the narrow-band scheme generates smaller errors for coarser lattices and thus, its application to broadband simulations should not be ruled out. 

All bridges and quarter wave lines work only near the design frequency because they are not broadband devices. (The /4 cable has a bandwidth which is about 10% of the design frequency.) Therefore, when an rf pulse impinges on a duplexer, what gets through to the receiver might look like what s shown in the sketch. 

The center of the pulse is attenuated by the duplexer as intended but the ends of the pulse come through because many different frequency components are necessary to form the beginning and the end of the pulses and they are not at the design frequency for the device... 

What if we now connect a shorted A./4 cable to a part of the circuit which has such a feedthrough signal Since it acts as an open circuit only for signals at the design frequency, it... 

Thus protons in a field of one tesla should absorb energy at 42.6 MHz. A popular design frequency for a nuclear magnetic resonance spectrometer is 60 MHz for a proton to absorb at this frequency requires that B = 1.41 tesla. 

Ring Connectivity Ring Size Designator Frequency... 

TDMA assigns each call a certrin portion of time on a designated frequency. 

It has also been suggested that the assembly of biological oscillators may be modeled as parameter tunnel diode memory system with couplings. The frequencies of such a system can include values very much lower than the design frequency, which thus supports our prediction of mode softening. 

The applied design safety levels of sea dikes are relatively low. This was also noticed in 1996 after the visit ofDutch expertise missions (DWW/RWS, 1996). Most designs of the sea dikes in Vietnam are based on the sea loads with return period 20 years. Besides this fact the Dutch mission marked that most Vietnamese dikes were in poor and disputable conditions (DWW/RWS, 1996). Consequently, the true probabihty of failure of the Vietnamese sea flood defense system exceeds by far the design frequency (Mai et td., 2006, 2007). Although designed to fail once in 20 years the sea defense system might well fail almost every year. The experiences in the past years support this statement. 

Nam Dinh coastal zone is protected by 70 km of sea dikes. The dikes system has been constructed on the basis of sea load with 20 year return period. However, the true probability of failure of the Nam Dinh defense system is 0.78 per year (Mai et al. 2007). This exceeds by far the design frequency and reflects that failure of the dike system occurs almost every year. 

Where DWL is called design water level, this is the all-cause-induced maximum sea water and depends on the specified design condition with regarding the design frequency of design return period. In this... 

The required dike heights are calculated with different design conditions which associate with different design frequencies. A linear relation is found between the required dike height and the design frequency in logarithms scale (Fig. 4). 

The direction of the incident wave is normal to the array. Note that the backscatter at the lowest frequency (5.7 GHz) is relatively high due to the inferior matching as observed in Figs. 5.22 and 5.23. However, at the design frequency 10 GHz the backscatter is very low as expected due to the superb matching as illustrated in Fig. 5.22. 

Again, as expected, we note a very high backscatter at the lowest frequency 5.7 GHz while we observe a very low backscatter at the design frequency 10 GHz. 

Channel Designation Frequency Band, MHz Channel Designation Frequency Band, MHz Channel Designation Frequency Band, MHz... 

Baseband The lowest frequency band in which a signal normally exists (often the frequency range of a receiver s output or a modulator s input) the band from DC to a designated frequency. 

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