at the present work, the effect of cold exhaust gas recirculation (egr) on combustion and pollution of a dual fuel engine has been investigated by cfd code fire. the turbulent flow within the combustion chamber is simulated using the k-ε turbulence model, which is modified for engine flows. “wave” and “eddy break up” models are employed to predict combustion and spray process. the calculations ...

we report the cases of two patients diagnosed with morgagni hernia who presented with nonspecific abdominal symptoms. both underwent laparo­scopic surgery that used a dual-sided mesh, polyvinylidene fluoride (pvdf; dynamesh ipom®). the procedures were successful and both patients were discharged with no complications. there was no recurrence in 18 months of follow up. herein is the report of th...

objectives: this study aimed to compare elderly fallers and non fallers by balance test under dual tasks conditions. methods & materials: this study was a analyse-comparative study. subjects were chosen from three parks of tehran. subjects were 20 older adults with no history of falls (aged 72.60±5years) and 21 older adults with a history of 2 or more falls in the last one year (aged 74.50±6 ye...

We developed a strategy for integrating cells and biosensors based on nonfouling poly (ethylene glycol) (PEG) hydrogel microstructures serving a dual role of cell culture chambers and matrices for encapsulation of sensing elements. We demonstrated incorporation of biosensors into micropatterned mono and co-cultures, and sucessfully detected release of endogenous hydrogen peroxide (H2O2) by macr...

We report the microfluidic control of a synthetic biological system using a one milliliter volume microbioreactor. Precise fluid injection and mixing enable control schemes such as rapid medium introduction in continuous culture conditions. A Saccharomyces cerevisiae strain with a dual inducible fluorescent reporter system was tested with the microbioreactor cultivation for precise induction co...

In this review, we discuss the dynamic linkages between culture and the genetic evolution of the human species. We begin by briefly describing the framework of gene-culture coevolutionary (or dual-inheritance) models for human evolutionary change. Until recently, the literature on gene-culture coevolution was composed primarily of mathematical models and formalized theory describing the complex...