Defined performance

In practice, it is nontrivial to manually select the parameter values to obtain successful results. Moreover, it is not obvious how to measure the quality of the results. Therefore, a well defined performance measure and an efficient parameter optimization method are desired. 

One approach to a mathematically well defined performance measure is to interpret the amplitude values of a processed signal as realizations of a stochastic variable x which can take a discrete number of values with probabilities P , n = 1,2,..., N. Briefly motivated in the introduction, then an interesting quality measure is the entropy H x) of the amplitude distribu-... 

Define performance characteristics based on system selection. 

The validation is therefore not complete until there is a detailed description of the method and records of the validation study. A responsible person needs to sign that the method meets the requirements, i.e. it is fit for purpose . The documentation facilitates the consistent application of the method, within its scope and defined performance parameters. This, in turn, helps ensure that when the method is applied in different laboratories or at different times, the measurand is the same and that the measurement results are comparable. Documentation is also required for quality assurance, regulatory and contractual purposes. 

Awell-written recommendation specifically describes and defines successful completion in clear and measurable terms. Satisfactory completion of the recommended action should be easy to recognize, that is, you should clearly know when the corrective action is finished. Vague or ambiguous terms do not belong in a written recommendation. Terms such as appropriate safeguards or improve the quality of training should be avoided imless they are expanded upon and specifically define performance terms. 

Besides the development and the optimization of the analytical method itself, the most important factor in defining performance characteristics is the... 

Hardware evaluation tends to be less complex than software evaluation, and unless hardware is being designed and built specifically for the application it will generally comprise standard components with defined performance detail that can be evaluated relative to the functional requirements and operational specifications. This also applies to the measurement and control instrumentation. 

The need to carry out both QA and QC in order to achieve the expected quality of analytical results immediately generates the requirement for clearly defined performance criteria. These criteria enable comparability to be achieved via the traceability of analytical results to national or international standards along an unbroken chain of comparisons. Validation is the central task in the development of any analytical method whose capabilities in specific applications can be assessed with the aid of measurement uncertainty. Finally, proficiency testing (PT) serves to demonstrate comparability in terms of the scatter of the results.3... 

If the criterion of propellant density is added to that of performance yet another optimum mixture will result. The importance of density depends upon the propulsion system and mission to be performed and is not reducible to a unique, well-defined performance parameter or figure of merit. It suffices to comment that the optimum mixture ratio will be influenced by the desirability of a high propellant bulk density. Since oxidizers are generally more dense than fuels, with notable exceptions, the optimum mixture ratio which includes the effect of propellant density is generally to the oxidizer side of the optimum mixture ratio based on maximum specific impulse alone. The effect of consideration of propellant density, then, in general, results in a shift toward the stoichiometric mixture ratio. 

For mechanistic physiologists, two key conclusions arise from these studies of scombroid evolutionary physiology. Firstly, the biomechanical (i.e., anatomical), physiological, and biochemical characters contributing to defining performance capacities were coordinately adjusted toward an upper threshold during the expan-... 

With many products and services, design occurs at the subsystem level where many target components and processes interact to create the final solution. Thus, when you re defining performance and perception expectations, you need to agree on which part of the solution—target or final—is the focus. 

Other technical problems, such as heterophilic antibody (HAMA) interference, may limit the clinical value of Tg measurements. Recommendations regarding approaches to standardization, precision, limits of detection, and hook effects have been suggested. Serum Tg values obtained by different methods are usually not interchangeable, and the same assay should be used to perform serial serum Tg measurements in a patient. When a change in method is made, the laboratory should define performance characteristics of the new method and validate its clinical utility before implementing the method for patient care. 

Defined performance standards defined similarly to the tripartite system, where SAL, API and ASTM perform their previous traditional roles. If ASTM cannot achieve consensus, there is provision for ILSAC to take over. The system defines physical, chemical and performance characteristics of engine lubricants for API SX and CX specifications. 

This book attempts to cover chemical and ecotoxicological analysis related to routine contaminated land investigations. It does not cover analysis related to research or specialist one-off project type investigations. The following chapter deals with soil analysis method requirements, how methods should be validated and the need for all methods to meet clearly defined performance requirements. It also covers quality assurance/quality control aspects. Chapter 3 covers the key, and problematic area of sample homogenisation and the initial sample preparation. Chapter 4 covers the analysis of metals and elemental... 

Currently, neither defined performance criteria nor external proficiency testing is available for 2-D laboratories. The absence of such criteria results in an overall lack of standardization that adversely affects Interlaboratory data comparison, which is essential to conduct a large multicenter project such as the Human Protein Index."... 

Define performance requirements, flows, pressures, and temperatures, as well as cost and life targets, for both the cathode and fuel processor air blowers. 

Because the final decisions are binary ones, we can define performance in terms of the outcomes for product items (or processes) that were in fact either fit or not fit (conforming or non-conforming). If these probabilities are defined as ... 

Tread-grade carbon blacks can be selected to meet defined performance parameters of rolling resistance, traction, wear, etc. 

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