one of the effective methods to improve the thermal efficiency of solar collectors is using nanofluids as the coolant. the present study experimentally investigated the effect of sio2/water nanofluid with 1% mass fraction on the performance of a symmetric collector, i.e. conical solar collector. the conical solar collector with 1 m2 area and normal to the earth was tested in ahvaz, a city in th...

In present study is concerned with the propagation of axisymmetric vibrations in a homogenous isotropic micropolar thermoelastic cubic crystal plate bordered with layers or half spaces of inviscid liquid subjected to stress free boundary conditions in context of Lord and Shulman (L-S) and Green and Lindsay (G-L) theories of thermoelasticity. The secular equations for symmetric and skew-symmetri...

We present determinant expressions for vector rogue wave (RW) solutions of the Manakov system, a two-component coupled nonlinear Schrödinger (NLS) equation. As a special case, we generate a family of exact and non-symmetric RW solutions of the NLS equation up to third order, localized in both space and time. The derived non-symmetric doubly localized second-order solution is generated experimen...

Nowadays, banks are considered as one of the major components of the financial system of a country and any deficits and malfunction in the banking system will negatively affect the performance of the real sector. Therefore, there is a need for more investigation on the behavior of banks and factors affecting those behaviors in a country. One of the issues that affect the behavior of banks is sy...

One of the effective methods to improve the thermal efficiency of solar collectors is using nanofluids as the coolant. The present study experimentally investigated the effect of SiO2/water nanofluid with 1% mass fraction on the performance of a symmetric collector, i.e. conical solar collector. The conical solar collector with 1 m2 area and normal to the earth was tested in Ahvaz, a city in th...

Disodium hydrogen orthophosphate is a water soluble white powder widely used as pH regulator and saline laxative. The sodium nitrate is a highly water soluble white solid, used in high blood pressure, dentinal hypersensitivity, and production of fertilizers. The present study was aimed to investigate the impact of biofield treatment on spectral properties of disodium hydrogen orthophosphate and...

BACKGROUND We want to assess quality of life in elderly patients in relation to the number of remaining teeth, the number of ingested drugs and xerostomía and to determine the correlation between an increased intake of drugs and a greater feeling of dry mouth and to know the most commonly used measures to control xerostomia. MATERIAL AND METHODS 30 subjects aged between 65 and 95 years (14 ma...

We have measured electron and hole multiplication factors and impact ionization coefficients in 550 A GaAs/SOO A AbX3G%,,As quantum wells with an intermediate A&,.45Ga0.55As barrier (50 and 100 %L) inserted in the well region. It is seen that while the measured value of a(E) is insensitive to the position of the intermediate barrier in the well, the value of P(E) is very sensitive. The value of...