In this paper a new phase-frequency detector is proposed using transmission gates which can detect phase difference less than 500ps. In other word, the proposed Phase-frequency Detector (PFD) can work in frequencies higher than 1.7 GHz, whereas a conventional PFD operates at frequencies less than 1.1 GHz. This new architecture is designed in TSMC 0.13um CMOS Technology. Also, the proposed PFD a...

Pelvic floor dysfunction (PFD) is the term connected with different clinical conditions such as urinary incontinence, anal-fecal incontinence, pelvic organ prolapse, pelvic pain syndrome and sexual dysfunction. In women the main risk factors for PFD are pregnancy and delivery, obesity, menopause and chronic pulmonary diseases. Main risk factors for PFD associated with delivery are large fetus, ...

BACKGROUND AND OBJECTIVES Perfluorodecalin (PFD) has previously been shown to rapidly dissipate the opaque, white micro-bubble layer formed after exposure of tattoos to Q-switched lasers [1]. The current pilot study was conducted to qualitatively determine if the use of a transparent PFD-infused silicone patch would result in more rapid clearance of tattoos than conventional through-air techniq...

In this paper a new architecture for delay locked loops will be presented.  One of problems in phase-frequency detectors (PFD) is static phase offset or reset path delay. The proposed structure decreases the jitter resulted from PFD by switching two PFDs. In this new architecture, a conventional PFD is used before locking of DLL to decrease the amount of phase difference between input and outpu...

Safety systems are be used in a wide range of technical application. Beside the availability of such systems the safety aspects, e. g. PFD and PFH figures, must be observed. Especially the calculation of these figures requires the use of standards. Worldwide are standards available for this calculation. The newest standard is IEC 61508. This standard is worldwide accepted. Another standard, whi...

PURPOSE Defecography is known to be a sensitive and specific measurement of pelvic floor dyssynergia (PFD). However, its standardized parameter for diagnostic analysis is still incomplete. We attempted to determine which defecographic findings are most significant for PFD, and how closely they match other physiologic tests and clinical symptoms of functional pelvic outlet obstruction. METHODS...

BACKGROUND Pirfenidone (PFD) is a novel antifibrotic agent approved for patients with pulmonary fibrosis. However, there are concerns regarding toxicity of the drug. In this meta-analysis, we analyzed the adverse events (AEs) of PFD for the treatment of pulmonary fibrosis. METHODS We performed a systematic search of PubMed, Embase, ClinicalTrials.gov, and Cochrane Central Register of Controll...

Pirfenidone (PFD), an anti-fibrotic small molecule drug, is used to treat fibrotic diseases, but its effects on myocardial infarction (MI)-induced cardiac fibrosis are unknown. The aim of this study was to determine the effects of PFD on MI-induced cardiac fibrosis and the possible underlying mechanisms in rats. After establishment of the model, animals were administered PFD by gavage for 4 wee...

This paper presents a novel Phase frequency detector for Charge Pump Phase locked loop (PLL) applications to enable fast frequency acquisition in the phaselocked loop (PLL). To cope with the missing edge problem, the proposed PFD predicts the reset signal and blocks the corresponding input signal during the reset time. The blocked edge is regenerated after the reset signal is deactivated [1]. T...

This paper presents a new approach to address the problem of Planning for Disassembly (PFD). The approach is based on the Case-based reasoning technique. To assist planners to solve PFD problems, a system must have some heuristics and domain specific knowledge, which is related to the representation of the disassembly knowledge. In previous work, the authors suggested to use EMOPs (Eposodic Mem...