نتایج جستجو برای: primary reference fuel prf
تعداد نتایج: 963546 فیلتر نتایج به سال:
BACKGROUND Choukroun's platelet-rich fibrin (PRF) is an autologous leukocyte- and platelet-rich fibrin biomaterial. The purpose of this study was to analyse the in vitro effects of PRF on human bone mesenchymal stem cells (BMSC), harvested in the oral cavity after preimplant endosteal stimulation. MATERIALS AND METHODS BMSCs from primary cultures were cultivated with or without a PRF membrane...
The Research Octane Number (RON) and the Motor (MON) are primary fuel properties that characterize gasoline’s knock resistance in spark ignition engines. utility of these two metrics, however, has been questioned with advancements engine technologies significantly change thermochemical environment inside cylinder. Index, OI = (1-K)·RON + K·MON, therefore proposed to modern engines where K weigh...
Ketohydroperoxides (KHPs) are oxygenated hydrocarbons that include carbonyl and peroxide functional groups. The decomposition pathways of KHPs chain branching in low temperature chemistry alkanes biofuels, which makes critical intermediates ignition processes advanced combustion engines. In this work, KHP formation was investigated the oxidation a primary reference fuel (PRF 70), binary mixture...
nowadays, utilization of blended fuel in internal combustion engine is one of main topics in vehicle industries. the synergy effect will be highlighted when the potential of each fuel is employed and the engine performance will improve consequently. in this research, the laminar flame speed of methane (main component of reference fuel for natural gas) and isooctane (main component of reference...
Sacroiliac (SI) joint pain can result from degeneration, infection, malignancy, and trauma. Patients with metastatic bone pain who do not respond to conventional treatment may need more aggressive neuroinvasive approaches. Recently, pulsed radiofrequency (PRF) neuromodulation has emerged as a promising treatment alternative for refractory cases of SI joint pain. Nevertheless, there is no report...
Although platelet-rich fibrin (PRF) has been used in clinical practice for some time, to date, few studies reveal its role as a bioactive scaffold in facilitating meniscal repair. Here, the positive anabolic effects of PRF on meniscocytes harvested from the primary culture of a rabbit meniscus were revealed. The rabbit meniscocytes were cultured with different concentrations of PRF-conditioned ...
Seminal work in the early nineties revealed that the visual receptive field of neurons in cat primary visual cortex can change in location and size when artificial scotomas are applied. Recent work now suggests that these single neuron receptive field dynamics also pertain to the neuronal population receptive field (pRF) that can be measured in humans with functional magnetic resonance imaging ...
The purpose of Part III of this review is to analyse the available literature and clinicalbased evidence on PRF relating to its clinical indications in implant dentistry, periodontics, oral surgery and regenerative endodontics. An improved understanding of the clinical indications of PRF will facilitate the clinicians’ ability to enhance the therapeutic applications of PRF in these fields. PRF ...
BACKGROUND Primary refractory acute myeloid leukemia (PRF-AML) is associated with a dismal prognosis. Allogeneic stem cell transplantation (HSCT) in active disease is an alternative therapeutic strategy. The increased availability of unrelated donors together with the significant reduction in transplant-related mortality in recent years have opened the possibility for transplantation to a large...
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