35,733 research outputs found

    Dual physiological rate measurement instrument

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    The object of the invention is to provide an instrument for converting a physiological pulse rate into a corresponding linear output voltage. The instrument which accurately measures the rate of an unknown rectangular pulse wave over an extended range of values comprises a phase-locked loop including a phase comparator, a filtering network, and a voltage-controlled oscillator, arranged in cascade. The phase comparator has a first input responsive to the pulse wave and a second input responsive to the output signal of the voltage-controlled oscillator. The comparator provides a signal dependent on the difference in phase and frequency between the signals appearing on the first and second inputs. A high-input impedance amplifier accepts an output from the filtering network and provides an amplified output DC signal to a utilization device for providing a measurement of the rate of the pulse wave

    Design and development of a fast scan infrared detection and measurement instrument

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    Infrared microscope instrument measures and plots the infrared profile of semiconductor chips, transistors and integrated circuits. Infrared analyses yields information on electrical and physical properties, enabling manufacturing improvements in semiconductor performance and reliability. Operational performance and main sections of the instrument are given

    Patient Evaluation of Emotional Comfort Experienced (PEECE): Developing and testing a measurement instrument

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    Objectives: The Patient Evaluation of Emotional Comfort Experienced (PEECE) is a 12-item questionnaire which measures the mental well-being state of emotional comfort in patients. The instrument was developed using previous qualitative work and published literature. Design: Instrument development. Setting: Acute Care Public Hospital, Western Australia. Participants: Sample of 374 patients. Interventions: A multidisciplinary expert panel assessed the face and content validity of the instrument and following a pilot study, the psychometric properties of the instrument were explored. Main outcome measures: Exploratory and confirmatory factor analysis assessed the underlying dimensions of the PEECE instrument; Cronbach’s α was used to determine the reliability; κ was used for test–retest reliability of the ordinal items. Results: 2 factors were identified in the instrument and named ‘positive emotions’ and ‘perceived meaning’. A greater proportion of male patients were found to report positive emotions compared with female patients. The instrument was found to be feasible, reliable and valid for use with inpatients and outpatients. Conclusions: PEECE was found to be a feasible instrument for use with inpatient and outpatients, being easily understood and completed

    Validation of lean manufacturing measurement instrument

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    This study is intended to provide a valid and reliable measurement instrument for lean manufacturing practices.It is important as lack of consensus regarding the valid and comprehensive measure of lean manufacturing implementation was observed in lean manufacturing literature. 182 large and discrete process manufacturers in Indonesia were involved in this study.A structural equation modeling approach was applied to validate the instrument.The study led to the conclusion that the measurement instrument is valid and reliable.In addition, the study suggested that lean manufacturing practices should be implemented holistically and simultaneously because they are interdependent

    Maternal Antenatal Attachment Scale [Measurement instrument]

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    Permission to reuse and republish this measurement tool is granted free of charge on the condition that you include the following acknowledgement: “Maternal Antenatal Attachment Scale by John T Condon of Flinders University, 2015. Reused under a Creative Commons Attribution 3.0 AU License. File available from: https://doi.org/10.25957/5dc0ed9114337

    Development and test of a Microwave Ice Accretion Measurement Instrument (MIAMI)

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    The development of an ice accretion measurement instrument that is a highly sensitive, accurate, rugged and reliable microprocessor controlled device using low level microwave energy for non-instrusive real time measurement and recording of ice growth history, including ice thickness and accretion rate is discussed. Data is displayed and recorded digitally. New experimental data is presented, obtained with the instrument, which demonstrates its ability to measure ice growth on a two-dimensional airfoil. The device is suitable for aircraft icing protection. It may be mounted flush, non-intrusively, on any part of an aircraft skin including rotor blades and engine inlets

    Evaluation of computer ethics: confirmatory factor models using PROC CALIS

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    The computer is considered one of the most essential technological advances and has become an everyday tool. Many tertiary institutions have become heavily dependent on computers, Internet and informations systems for educational purpose. Computers and the Internet also represent many people, organizations, and governments. However, at the same time they raise some ethical issues such as unauthorized access and use of computer systems, software piracy and information privacy. This study proposes the employment of computer use and computer security concepts for investigating students’ ethical conduct related to computer ethics. Specifically, an ethical computer awareness (ECA) construct concerning computer use and security is developed and validated. The process of evaluating a measurement instrument for reliability and investigating the factor structure are discussed using the scale of ethical computer awareness (SECA). SAS procedures served to provide an indication of the internal consistency, that is, reliability with PROC CORR, to explore the factor structure with exploratory factor analysis using PROC FACTOR, and to verify the factor structure with confirmatory factor analysis using PROC CALIS of the measurement instrument. The ECA construct developed from the study could be useful to research a wide range of computer ethics in the future

    A DISCREPANCY-BASED MEASUREMENT APPROACH FOR DATA INTEGRATION

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    This paper presents a measurement instrument for diagnosing the level of data integration at the organization and organization subunit levels. Incorporating consideration for specific theoretical properties related to data integration into its design, the measurement instrument relies on a discrepancy (or gap) measure to adequately account for these properties. Data from forty-eight organizations of the Group Insurance industry are used to test the reliability and validity of the measurement instrument. The results suggest that the discrepancy measure, based on the difference between respondents' ideal (i.e. normative) and actual estimates of data integration, appears to be a valid indicator of data integration. However the efficacy of using a discrepancy measure, over the simpler use of its parts, must be considered in light of practical and theoretical considerations.Information Systems Working Papers Serie

    The Development of the Measurement Instrument for the Emotional Intelligence of the Intellectually Gifted Students

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    This research study aims for finding of: (1) the construct underlying the instrument to measure the emotional intelligence of the intellectually gifted students, (2) the measurement instrument satisfying the construct validity requirement, (3) the factors being constructed from the measurement instrument, and (4) the measurement instrument satisfying the reliability requirement. Conseptually, the construct of the emotional intelligence of the gifted students consists of two domains, namely: (1) the emotional intelligence qualified as being intrapersonal along with self-awareness, self-regulation, self motivation dimensions, and (2) the emotional intelligence qualified as being interpersonal along with emphaty dimensions and working together. Of the items being validated by using expert judgement with the coefficient reliability of 0,89 and the other eighty six items are selected for the instrument to measure the emotional intelligence of the intellectually gifted students. Empirically, the factor analysis using the method of Maximum Likelihood successfully has extracted sixty nine factors in the first try out and sixty five factors in the second try out. The reliability test suggests that bacause the alpha stratified coefficient for multidimensions is 0,815 of the measurement instrument is strongly reliable. The most significant finding of this research is the instrument to measure the emotional intelligence of the intellectually gifted students has an appropriate construct validity and internal consistency
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