Taping data

Fig. 5.2 TEM-photographs showing typical morphology of metallic iron pigments (Table 5.1). A) Iron pigment for lEC IV compact cassettes (metal operating point). B) Iron pigment, for digital audio (R-DAT) 8 mm video tape, data storage.

Instrumentation on the flume consisted of pH meters, dissolved oxygen probes (galvanic), pyrheliometers, an anemometer, and a paper-punch tape data acquisition system. 

Data for uniform-wall-temperature heating are plotted in Fig. 11.32, and the isothermal friction factors are plotted in Fig. 11.33. Twisted tapes and propellers were used by Koch [4] to heat air (curves a-d). Propellers produce higher heat transfer coefficients than twisted tapes however, this enhancement is at the expense of a rather large increase in friction factor, as seen in Fig. 11.33. Up to Re = 200, the friction factor for the twisted tape is the same as that for the empty half-tube (y = °o). The twisted-tape data of Marner and Bergles [114] with ethylene glycol exhibit an enhancement of about 300 percent above the smooth-tube values. Swirl at the pipe inlet does not produce any effective enhancement [192],... 

Figure 28.4 illustrates representative Tape data obtained at three distances down the lane from the foul line for a typical house-pattern. Consistent with the example patterns shown in Figure 28.2, the highest oil concentrations are at 16 ft in the center of the lane. In this case, the pattern ended before 40 ft and distances from 38 ft to the pin deck had very low levels of oil. Note that the outer boards (i.e., near the gutters, L2-L6 and R6-R2) are very dry with oil levels near the required 3-unit minimum. This lack of oil in many house-patterns acts as an artificial bumper that helps steer the ball back toward the center of the lane. The center of the lane at 16 ft has 60 to 75 units of oil. 

Two approaches were used to establish calibration data and are summarized in Figure 28.5. The initial approach (A) was to compare NIR spectral data with the taping data. The second approach (B) was to uniformly disperse a known amount of oil onto a sample lane surface. These are described in the following sections. 

FIGURE 28.6 Representative oil thickness via taping data for three postage stamp patterns. 

Figure 28.9 shows an example of NIR-predicted oil concentrations using various 1 WL (open symbols) and 3 WL (filled symbols) calibration models. These data were consistent with taping data and show higher concentrations in the middle of the lane (LIO to RIO) and closer to the foul line (8 ft). There is more board to board variation when using the simpler 1 WL models. The 3 WL model used here results in a smoother cross-lane profile. 

A digital tape data acquisition system and off-line computer analysis, in use for several years prior to the development of the on-line computer system, provides a backup for either GC-MS in the event of a computer system failure. The results produced by the minicomputer system are consistent with the earlier system, but with increased flexibility and dynamic range. The immediate availability of results is especially valuable for discovery of problems before excessive time and samples are wasted. The potentiometric recorder output of the sample runs provides continuous, direct backup by displaying the data, as collected, in a familiar and directly accessible form. The ion current signal is displayed throughout the computer controlled run on an oscilloscope to allow the operator to assess system performance instantly. 

A year later, a novel method of encoding chemical structures via typewriter input (punched paper tape) was described by Feldmann [42]. The constructed typewriter had a special character set and recorded on the paper tape the character struck and the position (coordinates) of the character on the page. These input data made it possible to produce tabular representations of the structure. 

Du Pont called this new lubricant material Krytox (64,65) and initially it had such extraordinary properties that it sold for 200/kg ( 187kg ca 1993). Krytox was and is used ia most of the vacuum pumps and diffusion oil pumps for the microelectronics iadustry ia this country and ia Japan because it produces no hydrocarbon (or fluorocarbon) vapor contamination. It has also found important appHcations ia the lubrication of computer tapes and ia other data processiag appHcations as weU as military and space appHcations. 

The Manufacture ofDnsintered Tape, 2nd ed., technical data, ICI, Wilmington, Del., 1966. 

The National Chemical Laboratory for Industry (NCLl), Japan, has developed an integrated Spectral Database System (SDBS) which is available to users in Japan. AU spectra were deterrnined at NCLl under controUed conditions and are available on a PC/CD-ROM or magnetic tape. The system has both H-nmr (6000 compounds) and C-nmr spectra (5700 compounds), along with searching software. NCLl has also developed an integrated C— H-nmr system that can be used for two-dimensional data elucidation (70,71). 

There is no competitive situation for data storage disks with embossed iaformation (CD-ROM) and recordable/nonerasable disks (WORM) no counterpart to CD-ROM and WORM exists among magnetic memories. EOD drives are best compared to floppies and removable hard disk media given their possibiUty of easy and problem-free disk exchange and a capacity on the order of that of removable magnetic media (Tape, Bernoulli, SyQuest). 

Self-Adhering Silicone Rubber Tape" in GeneralElectric Company bulletin. Insulating Materials Data PD 1302, General Electric Co., Schenectady,... 

AlChE Design InstituteforPhjsicalProperty Data, Project 801 Source Pile Tape, Revision Dates Aug. 1989 and 1990. 

Mass storage device. Typically, fixed-head hard disk drives are used to store ac tive data, including on-line and historical databases and non-memory-resident programs. Memory-resident programs are stored to allow loading at system startups. The tape drives are used for archives and backups. 

The turbine undergoes three basic tests, these are hydrostatic, mechanical, and performance. Hydrostatic tests are to be conducted on pressure-containing parts with water at least one-and-a-half times the maximum operating pressure. The mechanical run tests are to be conducted for at least a period of four hours at maximum continuous speed. This test is usually done at no-load conditions. It checks out the bearing performance and vibration levels as well as overall mechanical operability. It is suggested that the user have a representative at this test to tape record as much of the data as possible. The data are helpful in further evaluation of the unit or can be used as base-line data. Performance tests should be conducted at maximum power with normal fuel composition. The tests should be conducted in accordance with ASME PTC-22, which is described in more detail in Chapter 20. 

For many reasons, it may be ineonvenient to take the speetrum analyzer to the field eaeh time an analysis is to be made. Often, several maehines are to be analyzed at various loeations. Also, a hostile environment may exist at the test site, whieh might result in damage to the analyzer. A way of over-eoming these problems is offered by data taping. With a tape, a permanent reeord is made. Sinee eaeh ehannel of the tape offers a plaee for data to be stored, this reeord may be a eondensation of several inputs either from different transdueers or from the same transdueer at various loeations. A eontinuous tape monitor is very benefieial. In the event of maehine failure, an analysis of the playbaek will help diagnose the problem. 

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