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27.10.2011., četvrtak

BANDPASS FILTER QUALITY FACTOR - QUALITY FACTOR


Bandpass filter quality factor - Pool filter repairs.



Bandpass Filter Quality Factor





bandpass filter quality factor






    bandpass filter
  • A filter that attenuates signals both below and above the desired passband.

  • An electric circuit designed to pass only middle frequencies.

  • A band-pass filter is a device that passes frequencies within a certain range and rejects (attenuates) frequencies outside that range. An example of an analogue electronic band-pass filter is an RLC circuit (a resistor–inductor–capacitor circuit).





    quality factor
  • The quality factor (qf) of encoded video streams (a.k.a. frame quality) is the amount of bits for each pixel in a given video. Quality factor is not a true estimation of visual quality, as different visual elements may require more or less bits to appear the same quality.

  • A parameter of an oscillatory system or device, such as a laser, representing the degree to which it is undamped and hence expressing the relationship between stored energy and energy dissipation

  • A figure expressing the ability of ionizing radiation to cause biological damage, relative to a standard dose of X-rays

  • (Quality factors) are features by which a product can be assessed such as efficiency of use, task adequateness, cognitive workload, robustness, learning cost, user acceptance. Quality factors are the result of the decomposition of the term `quality of the application'.

  • In physics and engineering the quality factor or Q factor is a dimensionless parameter that describes how under-damped an oscillator or resonator is, or equivalently, characterizes a resonator's bandwidth relative to its center frequency.











bandpass filter quality factor - Improving Teacher




Improving Teacher Quality: A Guide for Education Leaders


Improving Teacher Quality: A Guide for Education Leaders



Techniques for the difficult task of improving teacher quality
No one stakeholder group can realize lasting change on their own; nor can any reform initiative focusing on just one type of strategy create the workplace conditions needed to truly build capacity within the education profession. Rather, stakeholders must focus on collaborating, reaching common understanding, and prioritizing for ultimate impact on the quality of teachers and teaching. This book discusses research and concrete examples of practice tied to teacher quality intended to improve eight key interrelated factors: Preparation; Recruitment; Hiring; Induction; Professional Development; Compensation and Incentives; Working Conditions; and Performance Management.
Offers a framework and strategies for understanding the issues that make up the teacher quality question
Written for educational leaders, superintendents, district administrators, teacher leaders, and principals, as well as policy-makers and other stakeholders
Filled with illustrative examples teacher quality
The author addresses the most important factor that affects student achievement-the quality of the teacher.










84% (15)





Mal nutrition: Quantity and Quality




Mal nutrition: Quantity and Quality





This past April, Jacques Diouf of Senegal, Africa, Director of FAO (United Nations Organization for Agriculture and Food) assured the audience during the conclusion of a conference taking place in Brazil, that the increase in food prices is the consequence of multiple factors and also insisted that there is no lack of food, but obstacles for the most poor to have access to it.
Mr. Diouf cited the increased cost of fertilizers, estimated at 58% in the last 12 months, and also to major increases in petroleum prices as the major factors contributing to rising food costs. He also expressed that this situation has awakened the veracity of “speculators,” that have thrown themselves in the “search of opportunities” in the markets of prime matter and food and “have found them” due to crisis.











uSwitch Quality of Life-Index infographic




uSwitch Quality of Life-Index infographic





he UK is the worst place to live in Europe, thanks to a combination of high living costs, a poor work-life balance and low government spending on healthcare and education, according to the latest uSwitch Quality of Life Index.

This is the UK’s first year at the bottom of the Index, which calculates an overall quality of life score for ten European nations, based on 16 factors including net income, VAT and the cost of essential goods such as fuel, food and energy bills, as well as lifestyle issues like hours of sunshine, days holiday, working hours and life expectancy.









bandpass filter quality factor








bandpass filter quality factor




Improving Quality Assurance in European Vocational Education and Training: Factors Influencing the Use of Quality Assurance Findings






Many resources are invested in the development and introduction of Quality Assurance Systems in educational institutions all over the world. Our assumption is that, as a result of quality assurance activities, practitioners obtain information about their own functioning and institutional performance which is new and valuable to them and which therefore will form a basis for them to improve performance. This assumption proves to be naive; too often performance feedback is under-utilized, and evaluations become void, legitimizing rites instead of a basis for organizational learning and the improvement of institutions.
The aim of this book was to find out when educational institutions do transform Quality Assurance data into actions to improve performance, and how the use of such data can be promoted. This volume reports on the study of Quality Assurance structures and activities in 36 educational institutes in 6 European Countries and presents guidelines for Quality Assurance.










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