Alarm signals sensitivity

Because an exact temperature of 37 "C is essential for the accurate measurement of blood gases and pH, state-of-the-art instrumentation is fiirnished with thermal sensors embedded in the heat sink around the measuring chamber and communicating to the microprocessor. Audible or visible alarms signal deviation of temperature outside of preset tolerances (usually 37 C + 0.1 °C). Also of value is to use temperature-sensitive buffers, such as HEPES or TES, in pH quality assurance procedures. 

False SUFFOCATION ALARM THEORY This theory proposes that panic disorder patients have a suffocation monitor located in the brainstem, which misinterprets signals and misfires, triggering a false suffocation alarm (panic attack). Many factors are consistent with this hypothesis, including the above-mentioned theory of chronic hyperventilation and carbon dioxide hypersensitivity. The disorder of On-dine s curse (congenital central hypoventilation syndrome) appears to be virtually the opposite of panic disorder and is characterized by a diminished sensitivity of the... 

The experiments with H. M. employed a battery of tests. One set of experiments measured his sensitivity by means of a technique derived from signal detection theory (Corbit Engen, 1971), in which I asked H. M. to sniff 20 presentations of dilute odorant solution randomly interspersed with 20 presentations of odorless blank. The odor was so faint as to make it hard to tell it apart from blank. Figure 1 compares some of the data for H. M. with a male normosmic (P. D.) matched for age and race. After each presentation I asked H. M. whether he could smell an odor. His pattern of responding was the same as that of normosmics sometimes he gave affirmative responses to blanks (false alarms, symbolized by open symbols in fig. 14.1), but he did not always respond affirmatively to the dilute sample (correct affirmatives are symbolized by solid symbols in fig. 14.1). 

Because each latent variable is a linear combination of all variables, a fault in one of the sensors, or small process upsets may not be amplified sufficiently to trigger the alarm and give an indication to out-of-control signal. On the other hand, the SPE measure is more sensitive to such changes compared to the or the scores plot. This is due to the fact that the error of any type will be propagated to all latent space, thus in the de-mapping part of the PCA, i.e.,... 

An automatic inspection system uses various transducers that produce electrical signals representative of the surface condition of the web. These signals then have to be analyzed and interpreted. If a signal, or a number of signals, exceeds a preset detection threshold, an alarm is activated, and the area of concern can be further analyzed to determine what corrective action should be taken. Where visible flaws are to be detected, the transducers most commonly chosen are light-sensitive they produce signals that are parametric measures of such physical phenomena as reflection, transmission, and the like. 

Replacement of the existing boron meters with the new NAR-12 models which have increased measuring accuracy and the ability to monitor B-10 isotope. In addition, in order to have greater sensitivity immediately after replacement of 1/3 of the core, a new neutron monitoring system that uses new detectors (AKNP-7-02) with sensitivity and improved signal processing, displays and alarms are under development. 

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