Long-term performance of a hand held spirometer.

Long-term performance of a hand held spirometer.

BACKGROUND A study was undertaken to test the long term performance of a small hand held spirometer for self-administered serial spirometric testing. METHODS Thirty turbine pocket spirometers (MicroMedical DiaryCard) were used in a clinical trial on 22 emphysematous patients with severe alpha 1-antitrypsin deficiency. The spirometers were able to store the date, time, forced expiratory volume...

Accuracy of office spirometry performed by trained primary-care physicians using the MIR Spirobank hand-held spirometer.

BACKGROUND With the availability of compact, portable, effective microspirometers, pulmonary function tests no longer need to be performed only in specialized laboratories. However, the perception persists that small flow-sensing devices are less accurate than volume-sensing spirometers. OBJECTIVES To study the accuracy of spirometry performed with the MIR Spirobank® and to investigate how ac...

Performance Characterization of LEXFOAM from Hand-Held Systems

LEXFOAM is an explosive foam developed from two non-explosive components to replace C-4 or TNT in humanitarian demining. This paper discusses a recent break through in packaging, the properties of newly developed LEXFOAM and improvement in delivery based on deficiencies noted in field testing. The Hand-held delivery system consists of two disposable aerosol cans. A large aerosol can contains 50...

the effects of keyword and context methods on pronunciation and receptive/ productive vocabulary of low-intermediate iranian efl learners: short-term and long-term memory in focus

از گذشته تا کنون، تحقیقات بسیاری صورت گرفته است که همگی به گونه ای بر مثمر ثمر بودن استفاده از استراتژی های یادگیری لغت در یک زبان بیگانه اذعان داشته اند. این تحقیق به بررسی تاثیر دو روش مختلف آموزش واژگان انگلیسی (کلیدی و بافتی) بر تلفظ و دانش لغوی فراگیران ایرانی زیر متوسط زبان انگلیسی و بر ماندگاری آن در حافظه می پردازد. به این منظور، تعداد شصت نفر از زبان آموزان ایرانی هشت تا چهارده ساله با...

The Performance Leader in Hand-Held Network Tools