A power management unit (PMU) is an essential block for diversified multi-functional low-power Internet of Things (IoT) and biomedical electronics. This paper includes a theoretical analysis high current, single-stage ac-dc, reconfigurable, dual output, regulating rectifier consisting pulse width modulation (PWM) frequency (PFM). The provides two independently regulated supply voltages 1.8 V 3....

The ability to reliably measure electromechanical properties is crucial the advancement of materials design for applications in fields ranging from biology and medicine energy storage electronics. With relentless miniaturization device technology, perform this characterization on nanoscale paramount. Due its probe micro- nano-scales, piezoresponse force microscopy (PFM) has become premier tool ...

Three kinds of near-field microscopy imaging mode including SEAM (Scanning electron acoustic microscopy), PFM (Piezoresponse force microscopy) and SPAM (Scanning probe acoustic microscopy) have been developed to investigate domain structures of ferroelectric ceramics, crystals and thin films in our studies. The domain imaging mechanisms are presented individually in three imaging modes. Sub-sur...

Hypothesis / aims of study Androgens and anabolic steroids increase muscle mass and strength in general [1]. Due to the characteristics of hyperandrogenism in PCOS, it is plausible that women with PCOS may have increased muscle mass compared with controls [1]. The hyperandrogenism may lead to improve muscle function including pelvic floor muscle (PFM). In a recent study we found that women with...

BACKGROUND No head-to-head trials comparing recombinant factor VIII (rFVIII) products currently exist. This was a matching-adjusted indirect comparison (MAIC) study of efficacy of BAY 81-8973 with antihemophilic factor (recombinant) plasma/albumin-free method (rAHF-PFM) and turoctocog alfa for the prophylaxis of severe hemophilia A. METHODS A systematic literature review was conducted to iden...

Wearable devices require power management systems to achieve high conversion efficiency over a wide range of load currents. Multi-mode mixed modulation can be used in DCDC converters current range. The boost converter proposed this paper uses hybrid DGM (Deep Green Control Mode), PCMC (Peak mode control)-PFM (Pulse Frequency Modulation) and PCMC-PWM Width Modulation). switches smoothly from PCM...

Hysteresis loop analysis via piezoresponse force microscopy (PFM) is typically performed to probe the existence of ferroelectricity at the nanoscale. However, such an approach is rather complex in accurately determining the pure contribution of ferroelectricity to the PFM. Here, we suggest a facile method to discriminate the ferroelectric effect from the electromechanical (EM) response through ...

Piezoresponse force microscopy (PFM) is one of the most established techniques for the observation and local modification of ferroelectric domain structures on the submicron level. Both electrostatic and electromechanical interactions contribute at the tip-surface junction in a complex manner, which has resulted in multiple controversies in the interpretation of PFM. Here we analyze the influen...

The phase-field microelasticity (PFM) is adapted into a homogenization process to predict all the effective elastic constants of three-dimensional heterogeneous materials with complex microstructures. Comparison between the PFM approach and the Hashin–Shtrikman variational approach is also given. Using 3D images of two-phase heterogeneous media with regular and irregular microstructures, result...

OBJECTIVES Evaluation of resting and functional bioelectrical activity of the pelvic floor muscles (PFM) and the synergistic muscles, depending on the orientation of the pelvis, in anterior (P1) and posterior (P2) pelvic tilt. DESIGN Preliminary, prospective observational study. SETTING Department and Clinic of Urology, University Hospital in Wroclaw, Poland. PARTICIPANTS Thirty-two menop...