In this work, a defect based photonic crystal (PC) structure presented for design of tunable infrared photodetector. Absorption response was investigated under the effects of various structural parameters. Using straight transfer matrix method, PC band edge effect was studied on absorption and a significant absorption enhancement up to %96 was achieved for defect-based structure.

All existing similarity-based gene recognition algorithms can use only one protein as a template. The proposed enhancement of the ProFrame algorithm allows one to use structural information about several related proteins in multiple alignment. The new algorithm, named ProMult, was tested on a sample of human genes and demonstrated improved reliability of predictions.

iran’s unique attractions and destinations make it of great potentiality for utilising tourism industry. according to statistics of the international and national organization tourism, the situation of tourism in iran is not suitable, which is a sign of an undesired situation in the industry and failing to make use of the existing capabilities and potentials of the country. therefore, this rese...

in the present study, the survey research strategy was used to investigate the effect of factors influencing the success of customer relationship management (crm) considering mediating effects of organizational factors. the population consisted of managers and employees in the sports services sector of six metropolitan hotels of iran and 67 hotels were selected as the study sample. the data wer...

background imaging plays a critical role not only in the detection, but also in the characterization of lung masses as benign or malignant. objectives to determine the diagnostic accuracy of dynamic magnetic resonance imaging (mri) in the differential diagnosis of benign and malignant lung masses. patients and methods ninety-four masses were included in this prospective study. five dynamic seri...

Background and purpose: There are several ways to enhance marriage. Prevention and Relationship Enhancement Program (PREP) are among the methods of educating relationships. Relationship education programs have made a significant contribution to the growth and development of millions of couples. This study aimed to investigate the effectiveness of the  Prevention and Relationship Enhancement Pro...

The full knowledge of the charge storage mechanisms occurring in complex composite electrodes is key for straightforward development advanced electrochemical capacitors. In this work, hybrid composed reduced graphene oxide, multiwall carbon nanotubes and NiO nanostructures were fabricated through reactive inverse matrix assisted pulsed laser evaporation technique. Nitrogen doping was carried ou...

Cross-reactive dengue virus (DENV) antibodies directed against the envelope (E) and precursor membrane (prM) proteins are believed to contribute to the development of severe dengue disease by facilitating antibody-dependent enhancement of infection. We and others recently demonstrated that anti-prM antibodies render essentially non-infectious immature DENV infectious in Fcγ-receptor-expressing ...

the present work is an experimental study of steady state convective heat transfer of de-ionized water with a (0.04% by volume) volume fraction of al2o3 nanoparticles dispersed to form a nanofluid that flows through an aluminium tube.laminar fully developed flow heat transfer coefficient of al2o3 nanoparticles are dispersed in water in circular tube is discussed in this paper. in order to valid...

Single-crystal micro- and nanomaterials often exhibit higher yield strength than their bulk counterparts. This enhancement is widely recognized in structural materials but is rarely exploited to probe fundamental physics of electronic materials. Vanadium dioxide exhibits coupled electronic and structural phase transitions that involve different structures existing at different strain states. Fu...