Screening method of nonorganic deafness using pure tone audiometer.

Pure Tone Audiometer

Estimation of pure tone hearing threshold is a part of hearing tests conducted in order to know the sensitivity of the human auditory system. This paper presents manual audiometer implemented in Matlab which can be used to conduct such measurements. Audiometer was calibrated by means of an artificial ear and pistonphone. Modified Hughson-Westlake method [1] usually used in manual audiometry is ...

Deafness in general practice measured by a screening audiometer.

OF THE many diagnostic instruments now available to the practitioner none is so satisfactory to use as the audiometer. Antibiotics and the affluent society may be responsible for the virtual disappearance of acute mastoiditis in children as seen by the general practitioner in south-east England, but deafness is still common in adolescents. A child who has apparently recovered from acute otitis ...

The Correlation of Results between Pure Tone Audiometry and the Virtual Audiometer: A Simulated Air-Conduction Clinic-based Audiometer

Methods: Analytic, cross-sectional study set in a Philippine tertiary institution. Subjects were recruited from the outpatient department in September 2005 and comprised of cooperative, clinically normal and abnormal hearing individuals. Thirty-two subjects made 64 total ears tested (n=64), giving 0.90 correlation at 0.05 level of significance (α) (p = 0.05) and 99% power. Each subject underwen...

/JRt-*- ~7Sr Free Voice and Pure Tone Audiometer for Routine Testing of Auditory Acuity

buckling of viscoelastic composite plates using the finite strip method

در سال های اخیر، تقاضای استفاده از تئوری خطی ویسکوالاستیسیته بیشتر شده است. با افزایش استفاده از کامپوزیت های پیشرفته در صنایع هوایی و همچنین استفاده روزافزون از مواد پلیمری، اهمیت روش های دقیق طراحی و تحلیل چنین ساختارهایی بیشتر شده است. این مواد جدید از خودشان رفتارهای مکانیکی ارائه می دهند که با تئوری های الاستیسیته و ویسکوزیته، نمی توان آن ها را توصیف کرد. این مواد، خواص ویسکوالاستیک دارند....