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Sonovue is a kind of ultrasound contrast agent (UCA) with a stable shell made by lipid, within which is SF6. Due to the specific acoustic characteristics, UCA has been widely used in ultrasound diagnosis and therapy. In some cases, the 2nd harmonic wave of the scattered signal should be strong enough to help form a high quality image. To better utilize the bubbles to get enough intensity of the 2nd...
Effects of structure design on rotary actuation generated by a novel cyclic symmetric stator have been investigated in this research through finite element simulation. Migration of structure response is characterized through parameter studies considering changes of number of the protrusion fingers and contact angle between stator fingers and rotor. The structure responses on the stator disk and protrusion...
As the growth of economy and technology has become increasingly rapid, mental care is getting more important today. However, recent movements, such green technologies, place more emphasis on environmental issues but less on mental care. Therefore, this paper presents a newly emerging technology called orange computing for mental care applications. Orange computing refers to health, happiness, and...
In recent years, emotion-aware human-machine interactions have become an important issue. Most of the traditional researches focused on the use of different features and classification methods to improve emotion recognition rates. However, they still cannot recognize detailed and various emotions. Accordingly, in this paper, an emotion recognition system, which combines the acoustic and textual features...
Investigating the displacement motion of the piezoelectric ultrasonic transducers plays an important role for bonding process in package technology. Mechanical vibration and electrical performance analysis of the transducer is a great concern. The commercial 3D ATILA software is used for simulation first. Best resonance frequency of the transducer is verified and tested via LCR impedance meter and...
The thermosonic flip-chip bonding technology operates in lower temperature, bonding force, and less bonding time than wire bonding. Improving the bonding efficiency of ultrasonic transducers plays an important role for bettering bonding process in gold-to-gold interfaces. Analysis of the transducer tool both in mechanical vibration and electrical performance is great concern. The commercial package...
The thermosonic bonding parameters on LEDs involve different bonding temperatures, different bonding force, different bonding time and different ultrasonic power. Improving the efficiency of ultrasonic transducers plays an important role in the bonding process. However, the place of the tool on the transducer has affected transducer work efficiency. Therefore, to analyse the transducer and tool provided...
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