Fundamentals of Physical Acoustics

Fundamentals of Hard Disk Drive Acoustics

FIGURE 1 Acoustic Intensity Spectrum for a Typical Disk Drive Under Idle and Seek Operation Conditions. INTRODUCTION In the hard drive industry, drive acoustics are becoming more important than ever. With the introduction of hard drives into new emerging markets in which the consumer is more keenly aware of and sensitive to radiated acoustic noise issues, technical professionals are facing enor...

Fundamentals of Physical Examination

Acoustics of pianos: physical modeling, simulations and experiments

The outlines of a recently developed model of a grand piano are summarized. Using dedicated numerical methods, the main vibratory and acoustic variables of each constitutive part of the instrument (strings, bridge, soundboard, sound pressure) are simulated in the time-domain. The obtained waveforms are analyzed and compared with experimental data derived from measurements on a Steinway D grand ...

determination of some physical and mechanical properties red bean

چکیده: در این تحقیق، برخی خواص فیزیکی و مکانیکی لوبیا قرمز به-صورت تابعی از محتوی رطوبت بررسی شد. نتایج نشان داد که رطوبت بر خواص فیزیکی لوبیا قرمز شامل طول، عرض، ضخامت، قطر متوسط هندسی، قطر متوسط حسابی، سطح تصویر شده، حجم، چگالی توده، تخلخل، وزن هزار دانه و زاویه ی استقرار استاتیکی در سطح احتمال 1 درصد اثر معنی داری دارد. به طوری که با افزایش رطوبت از 54/7 به 12 درصد بر پایه خشک طول، عرض، ضخام...

An Outstanding New Text Fundamentals of Physical Science

THIS distinctive book was published only six months ago, yet it has already won a definite place for itself as a well balanced and scholarly text which captures and holds the interest of the beginning student. Teachers like Fundamentals of Physical Science because of its completeness and balance of subject matter; the clarity of its explanations, especially in the more elementary material of ph...