various researches on laboratory and field scale illustrate that manipulating the ionic composition and the ion concentration of injected water can affect the efficiency of water flooding and the interaction of injected water with rock and other fluids present in porous media. the objectives of this paper are to investigate parameters that affect low salinity water flooding; mainly the effect o...

efforts to increase the mass transfer coefficient, enhance the contact area, and decrease the power input of contractors have given risen to the development of the pre-dispersed solvent extraction (pdse) contactor and the devise of the new dissolved nitrogen pdse (dnpdse) contactors. the studies conducted after the design of the new contactor to determine the working conditions for its suitable...

An increase in research investigating recovery strategies has occurred alongside the increase in usage of recovery by elite athletes. Because there is inconsistent evidence regarding the benefits of recovery on performance, it is necessary to examine research design to identify possible strategies that enhance performance in different athlete settings. The purpose of this review is to examine a...

recovery is a part of disaster management cycle during which repair and reconstruction takes place, and individuals, groups, and communities retake what they have lost and ideally the risk of future incidents reduces. life recovery is a subjective and multidimensional issue influenced by various factors, whereas valid measurable indicators in evaluating the recovery after disasters are helpful....

Background Despite debate regarding their effectiveness, many different post-exercise recovery strategies are used by athletes. This study compared five post-exercise recovery strategies (cold water immersion, contrast water immersion, active recovery, a combined cold water immersion and active recovery and a control condition) to determine which is most effective for subsequent short-term perf...

the aim of this research is performance evaluation of reverse osmosis method for treatment of ion exchange resins regeneration wastewater from a petrochemical complex in iran. currently this wastewater is discharged to evaporation lagoons after neutralization. thus, we need to set up a pilot plant which has membrane cell for treatment performance evaluation of three kinds of reverse osmosis mem...

1 KEY POINTS • Recovery is becoming increasingly important to the high-performing athlete in a bid to reduce fatigue and enhance performance. • Some of the more common recovery techniques utilised by athletes include hydrotherapy, active recovery, stretching, compression garments and massage. • In the previous 5-10 years, there has been a significant increase in research examining both the effe...

Gas injection into heavy oil reservoirs could result in high ultimate recovery of oil. Experimental studies showed that an application of a combined technology of Gas Assisted Gravity Drainage (GAGD) and Vapor Extraction (VAPEX) could increase final oil recovery of a candidate viscous oil reservoir. In this paper the results of laboratory investigation are presented, including Pressure-Volu...

Hierarchical RAID (HRAID) extends the RAID paradigm to mask the failure of whole Storage Nodes (SNs) or bricks, where each SN is a disk array with a certain RAID level. HRAIDk/l with N SNs and M disks per SN tolerates k SN failures and l disk failures per SN withMaximum Distance Separable (MDS) erasure codes, which introduce the minimum level of redundancy at each level. For N = M there are k i...

It is known that a high-dimensional sparse vector x∗ in Rn can be recovered from low-dimensional measurements y = Ax∗ where Am×n(m < n) is the measurement matrix. In this paper, with A being a random Gaussian matrix, we investigate the recovering ability of `p-minimization (0 ≤ p ≤ 1) as p varies, where `p-minimization returns a vector with the least `p quasi-norm among all the vectors x satisf...