Applied Science Private University

About: Applied Science Private University is a education organization based out in Amman, Jordan. It is known for research contribution in the topics: Population & Catalysis. The organization has 4124 authors who have published 5299 publications receiving 116167 citations.

The Effect of Relationship Marketing on Customer Retention in the Jordanian’s Pharmaceutical Sector

Abstract: The main objective of this study is to examine the effect of relationship marketing factors on customer retention through relationship quality in the Jordanian’s pharmaceutical business sector. This study adopted the customers' views, the retail pharmacists who are dealing directly with the pharmaceutical companies' suppliers. The conceptual framework of this study was tested using data gathered from the questionnaires directed to a total sample of 500 retail pharmacies located in Amman and Zarqa. The statistical results indicated that communication significantly and negatively affects relationship quality. While seller expertise, which is the most influential factor within relationship marketing factors that affects relationship quality, has a positive and significant effect on relationship quality. The results of the comparison level of alternatives showed that it has a positive and significant effect on trust, no effect on satisfaction and positive but insignificant effect on commitment, while the dependence on seller indicated a positive but insignificant effect on commitment and satisfaction, while it has a positive and significant effect on trust. Regarding the results of cooperation, it affects trust and commitment significantly and negatively while it has a negative insignificant effect on satisfaction. The results of the effect of relationship quality on customer retention, showed a positive and significant effect of satisfaction and commitment on customer retention, while trust has insignificant effect on customer retention. Accordingly, research marketing implications, recommendations, and directions for future research are also discussed.

Optimum Timing for Miscible CO2-EOR after Waterflooding in a Tight Sandstone Formation

Abstract: In this paper, CO2 dissolution into a light oil/reservoir brine and optimum timing for CO2 enhanced oil recovery (CO2-EOR) after waterflooding in a tight sandstone formation are experimentally studied. First, the gas–oil ratio (GOR) of CO2-saturated light oil and the gas–water ratio (GWR) of CO2-saturated reservoir brine are measured by using a PVT system. The measured GOR is found to be approximately six times of the measured GWR at the same pressure and temperature. Second, the equilibrium interfacial tensions (IFTs) between the light oil/reservoir brine and CO2 are measured at different equilibrium pressures and the actual reservoir temperature by applying the axisymmetric drop shape analysis (ADSA) technique for the pendant drop case. The measured equilibrium IFT between the light oil and CO2 is about one-third to one tenth of that between the reservoir brine and CO2 under the same test conditions. Third, the minimum miscibility pressure (MMP) between the light oil and CO2 is determined to be 11.0 MPa...

Numerical and approximate solutions for coupled time fractional nonlinear evolutions equations via reduced differential transform method

Abstract: We construct an explicit and approximate solutions of fractional time-nonlinear fractional equations by using a new approach, namely, the reduced differential transform (RDTM) method. As a special cases, two models of fractional-time derivative of order α are used to find the solutions. The effect of the values of the parameter α on the behaviour of reduced differential transform (RDTM) method is investigated. The efficiency of the suggested algorithm is tested by using some numerical examples.

Investigation of the effect of rubber on rheological properties of asphalt binders using superpave DSR

Abstract: The main objective of this study was to investigate the effect of the rubber additive on the rheological properties of asphalt binders including Superpave rutting parameter, fatigue parameter, storage modulus at six rubber percentages: 0.0, 2.5, 5.0, 7.25, 10, and 15%. The Superpave Dynamic Shear Rheometer (DSR) was used to measure the complex shear modules value and the phase angle for the fresh asphalt binder and the rubber-modified asphalt binders using DSR strain-controlled tests. The DSR tests were conducted at one loading frequency of 10 rad/sec (1.59 Hz) and five temperatures: 58, 64, 70, 76, and 82°C. A 12 percent constant strain was applied in these tests according to the Superpave specifications. The rubber additive improved the complex shear modulus value of asphalt binder at all temperatures. Findings of the study showed that the rubber additive resulted in an increase in each of: the complex shear modulus value, the rutting parameter, the fatigue parameter, and the storage modulus (|G*|, |G*|/sin δ, |G*|sin d, and |G*|cos δ, respectively) of the asphalt binder. In conclusion, the rubber additive improved the rutting resistance as well as the fatigue resistance of the asphalt binder by increasing the complex shear modulus value and the storage modulus, and decreasing the phase angle.