Long data type

In a very similar way we are now witnessing the arrival of a new data type three-dimensional geometry. To be sure, geometric modeling has been around for a long time, but geometry was created by hand, in a tedious custom pro-... 

A union is a way of storing different types of items in a single place. Of course, only one of those types can be there at any one time. Unions are sometimes used to provide an alternate access to a data type, such as accessing the bytes in a long integer, but the most common use is to save space in a large data set by storing only one of a set of mutually exclusive pieces of information. 

Multivariate analysis of skin impedance data in long term type 1 diabetic patients. Chemometr. Intell. Lab. Syst. 44, 381-394. 

Requirements for the duration of data records differ per data type and application or analysis method. Relatively short data records are, for instance, sufficient to validate numerical models long data records are required for design purposes, e.g., to determine the operational and extreme conditions. 

Three-component data from all stations are extracted for each event, and the responses are equalized by deconvolution of the instrument response and convolution with standard bandpass filters that depend on the data type. Rotated horizontal components (longitudinal and transverse) are constructed and considered in the analysis. Three types of data are used (1) body waves, which are the signals that arrive in the time window before the arrival of the minor-arc surface waves (2) mantle waves, which consist of up to 4.5 h of data, including several very long-period Love and Rayleigh wave arrivals (e.g., G1-G4 and R1-R4) and (3) intermediate-period surface waves, which consist of a time window centered on the minor-arc arrival times for surface waves. 

Templeton obtained data of the following type for the rate of displacement of water in a 30-/im capillary by oil (n-cetane) (the capillary having previously been wet by water). The capillary was 10 cm long, and the driving pressure was 45 cm of water. When the meniscus was 2 cm from the oil end of the capillary, the velocity of motion of the meniscus was 3.6 x 10 cm/sec, and when the meniscus was 8 cm from the oil end, its velocity was 1 x 10 cm/sec. Water wet the capillary, and the water-oil interfacial tension was 30 dyn/cm. Calculate the apparent viscosities of the oil and the water. Assuming that both come out to be 0.9 of the actual bulk viscosities, calculate the thickness of the stagnant annular film of liquid in the capillary. 

We now have two ways of inserting the correct parameters into the STO-2G calculation. We can write them out in a gen file like Input File 8-1 or we can use the stored parameters as in Input File 8-2. You may be wondering where all the parameters come from that are stored for use in the STO-xG types of calculation. They were determined a long time ago (Hehre et al, 1969) by curve fitting Gaussian sums to the STO. See Szabo and Ostlund (1989) for more detail. There are parameters for many basis sets in the literature, and many can be simply called up from the GAUSSIAN data base by keywords such as STO-3G, 3-21G, 6-31G, etc. 

The nitration of phenylpyridines and related compounds has attracted attention for a long time, and measurements of isomer proportions have been made for several compounds of this type. Nitration occurs in the phenyl ring. For 2-phenylpyridine and 2-phenylpyridine i-oxide measurements of the dependence of rate of nitration upon acidity in 75-81 % sulphuric acid at 25 °C show that both compounds are nitrated as their cations (table 8.1). The isomer distribution did not depend significantly upon the acidity, and by comparison with the kinetic data for quinolinium ( 10.4.2) the partial rate factors illustrated below were obtained.They should be compared with those for the nitration of 2-nitrobiphenyl ( 10.1). The protonated heterocyclic groups are much... 

Creep. The creep characteristic of plastic foams must be considered when they are used in stmctural appHcations. Creep is the change in dimensions of a material when it is maintained under a constant stress. Data on the deformation of polystyrene foam under various static loads have been compiled (158). There are two types of creep in this material short-term and long-term. Short-term creep exists in foams at all stress levels however, a threshold stress level exists below which there is no detectable long-term creep. The minimum load required to cause long-term creep in molded polystyrene foam varies with density ranging from 50 kPa (7.3 psi) for foam density 16 kg/m (1 lb /ft ) to 455 kPa (66 psi) at foam density 160 kg/m (10... 

Limited clinical data on BMY 21502 (11) suggest that some benefit may be provided to patients with dementia (87,88). This expectation is based on the abihty of (11) to increase the level of arousal and attention in patients with certain types of dementia. BMY 21502 enhances long-term potentiation... 

Ethylene oxide catalyst research is expensive and time-consuming because of the need to break in and stabilize the catalyst before rehable data can be collected. Computer controlled tubular microreactors containing as Httle as 5 g of catalyst can be used for assessment of a catalyst s initial performance and for long-term life studies, but moving basket reactors of the Berty (77) or Carberry (78) type are much better suited to kinetic studies. 

To conclude, the concept of bond stiffness, based on the energy/distance curves for the various bond types, goes a long way towards explaining the origin of the elastic modulus. But we need to find out how individual atom bonds build up to form whole pieces of material before we can fully explain experimental data for the modulus. The... 

---