In this paper, the link quality in SHF and EHF ranges are studied. In order to achieve high data rate higher frequencies must be used – centimeter waves (SHF), millimeter waves (EHF) or optical range. However, there are significant problem when a radio link work in that diapason – rain attenuation and attenuation in earth’s atmosphere. Based on statistical rain rates data for Bulgaria, the link...

In this paper, a tri-band E-shaped microstrip patch antenna is presented for SHF and microwave data links. The proposed antenna has symmetrical properties and has been designed by forming E-shape structure on substrate with Wave guide feed. It radiates for three bands having two bands in SHF and one in lower EHF frequency bands. It is demonstrated that the fabricated antenna offers improved val...

We study a problem of $\pi$ production in heavy ion collisions the context Isospin-dependent Boltzmann-Uehling-Uhlenbeck (IBUU) transport model. generated nucleon densities using two different models, Skyrme-Hartree-Fock (SHF) model and configuration interaction shell (SM). Indeed, inter-nucleon correlations are explicitly taken into account SM, while they averaged SHF As an application our the...

The nuclear size radii, density distributions and elastic electron scattering charge form factors for Fluorine isotopes (17,19,20,24,26F) were studied using the radial wave functions (WF) of harmonic-oscillator (HO) potential free mean field described by spherical Hankel (SHF) core valence parts, respectively all aforementioned isotopes. parameters HO (size parameter ) SHF chosen to regenerate ...

During early development, the heart tube grows by progressive addition of progenitor cells to the arterial and venous poles. These cardiac progenitor cells, originally identified in 2001, are located in the splanchnic mesoderm in a region termed the second heart field (SHF). Since its discovery, our view of heart development has been refined and it is well established that perturbation in the a...

BACKGROUND The purpose of the present study was to evaluate safety and efficiency of the semi-sterile technique used in recent years in treatment of pediatric supracondylar humeral fractures (SHF). METHODS Total of 712 patients who were treated for SHF via closed reduction and percutaneous fixation with semi-sterile technique were enrolled in present study. Patients were evaluated for postope...

Height variations caused by mass change make an important contribution to the tectonic uplift of Qinghai-Tibet Plateau (QTP). To study deformation attributable hydrological loading and real potential vertical motion, satellite gravity data from Gravity Recovery Climate Experiment (GRACE) GRACE Follow-On (GRACE-FO) with Global Land Data Assimilation System (GLDAS) Positioning (GPS) are adopted e...

Satellite multi-sensor data is used to derive sensible heat flux (SHF), Bowen ratio (Bo), and thus latent heat flux (LHF) in the tropical Pacific. The temperature differences at the air–sea interface are determined empirically for regions where strong deep air convection is present due to the buoyancy force. The vertical airflow results in surface wind divergence, which is estimated from scatte...