Chemical flooding, especially alkaline/surfactant/polymer flooding, is of increasing interest due to the world increasing oil demand. This work shows the aspects of using alkaline/surfactant/polymer as an enhanced oil recovery method in the porous media having a high dead-end pore frequency with various dead-end pore parameters (such as opening, depth, aspect ratio, and orientation). Using glas...

In this issue of Neuron, Genovesio et al. report that neurons in the frontal cortex encode the relative duration of appearance of two sensory signals, together with the features of each signal. Such representations could provide a neural basis for episodic memory.

Flotation mechanisms of calcareous phosphates ores, and in particular the reaction between phosphoric acid fluorapatite have still to be elucidated. In present work, variations carbonated hydroxyfluorapatite (C-HFAp) contact with various concentrations were studied using ex-situ in-situ techniques, namely Raman Infrared spectroscopy, X-Ray diffraction (XRD) Scanning Electron microscopy (SEM). s...

In the Western world, SO2 concentration in ambient air dropped to low levels, but some emission sources (e.g., merchant ships) and regions low-income countries) still emit substantial amounts of SO2. At those locations, monitoring is critical. However, countries do not have much access expensive reference instruments. Low-cost gas sensors might be an alternative, it unclear how reliable such me...

by increasing number of vessels. salivary gland tumors are uncommon and their overall incidence is about 3 per 100000 per year. salivary gland hemangioma makes up 1 % of all salivary gland tumors. trismus resulting from parotid hemangioma is so rare. the patient was a 6-month-old boy with a huge lesion in his right parotid who referred to shahid sadoughi hospital of yazd, iran. the lesion appea...

The identification of high-energy compounds in trace concentrations not only the laboratory, but also field conditions is particular interest. process should be clear, easy, and well-recognizable. We formed SERS-active substrates by using elongated nickel nanotubes synthesized electrochemical deposition pores ion-track membranes coated them with gold for further application detection low analyt...