Poly(vinylidene fluoride)/thermoplastic polyurethane (PVDF/TPU) composites filled with carbon-black polypyrrole were prepared via melt compounding followed by compression molding and fused filament fabrication. CB-PPy was added to the blends from 0 up 15% possible act as nucleating filler for PVDF β phase in order increase its piezoelectric response. The influence of blending TPU addition on ov...

Received Jan 16, 2018 Revised Mar 18, 2018 Accepted Mar 31, 2018 Piezoelectric Acoustic Transducer (PAT) is a transducers used in many application such as medical diagnostic, medical ultrasonic imaging and underwater acoustic applications. Latest research, PAT were investigated in marine application and underwater acoustic imaging. Conventional PAT is design based on sensing element, Piezoelect...

In a flexible nanocomposite-based nanogenerator, in which piezoelectric nanostructures are mixed with polymers, important parameters to increase the output power include using long nanowires with high piezoelectricity and decreasing the dielectric constant of the nanocomposite. Here, we report on piezoelectric power generation from a lead-free LiNbO3 nanowire-based nanocomposite. Through ion ex...

This article reexamines the problem of labor exploitation in advanced capitalist economies, especially the United States. The article specifies the concept of labor exploitation by using both the Marxian and marginalist notions and measures. The implicit neoclassical presumption of no or little labor exploitation in a capitalist economy is rejected by the results. The alternative heterodox argu...

This paper reports improved screen-printed piezoelectric composites that can be printed on fabrics or flexible substrates. The materials are flexible and are processed at lower temperature (130°C). One main PZT particle size (2μm) was mixed separately with smaller piezoelectric particles (0.1, 0.3 and 0.8μm) with different weight ratios to investigate the piezoelectric property d33. The blended...

The piezoelectric voltage constant (g33) is a material parameter critical to voltage-type sensors for detecting vibrations or strains. Here, we report lead-free (K,Na)NbO3 (KNN)-based accelerometer with sensitivity enhanced by taking advantage of high g33. To achieve g33, the magnitudes charge d33 and dielectric permittivity εr KNN were best coupled manipulating intrinsic polymorphic phase boun...

BaTiO3-based piezoelectric ceramics have attracted considerable attention in recent years due to their tunable phase structures and good properties. In this work, the (1 ? x)BaTiO3?xCaSnO3 (0.00 ? x 0.16, abbreviated as BT?xCS) solid solutions, were prepared by traditional solid-state reaction methods. The transitions, microstructure, dielectric, piezoelectric, ferroelectric properties of BT-xC...

and t6 are the isospin raising and lowering single-particle operators. Two main proposals were made to explain this puzzling quenching of the GT strength; ~1! the missing strength is removed to the very high excitation energy of about 300 MeV above the ground state due to the process in which a nucleon is transformed into a D33 resonance, or more precisely the GT strength is removed due to the ...

A better understanding of the factors that regulate growth and immune response of the gastrointestinal tract (GIT) of calves will promote informed management practices in calf rearing. This study aimed to explore genomics (messenger RNA (mRNA)) and epigenomics (long non-coding RNA (lncRNA)) mechanisms regulating the development of the rumen and ileum in calves. Thirty-two calves (≈5-days-old) w...

Lead free potassium sodium niobate (KNN) piezoceramics were synthesized via conventional solid state sintering route. Nano and micron WO3 were separately added to KNN through ball-milling. Dielectric and piezoelectric properties of samples sintered in the temperature range of 1110°-1145°C were measured by precision LCR-meter and APC d33-meter devices. The results revealed that micron WO3 partic...