The biocompatible hydroxyapatite cement (HAC) is a welcome alternative to the traditional use of autogenous bone for postoperative corrections of cranial vault irregularities. The authors performed experimental studies to show the safety and osseointegration capacity of HAC on animal models and confirm the osseous replacement without toxic reactions. The purpose of the current study was to anal...

Studies on the irregularities of ionosphere during disturbed geomagnetic conditions are fundamental to understanding complex dynamics taking place in upper atmosphere. In this work, different data sources used study effects two moderate storms, 26–27 February 2014 and 17–18 September 2021, over Iberian Peninsula. Data obtained from digital ionosondes Spain, Italy Greece; Global Navigation Satel...

Most of the building damages in our country are caused by earthquakes. As known, properties determinant magnitude earthquake forces that cause these damages. Thus, selection structural system is crucial design process. In case any irregularity building, load transfer will not be provided safely. Turkish Earthquake Code, related irregularities analysed under two groups. Group A indicates plan, a...

Structural damage can be controlled in performance based seismic design (PBSD) according to the requirement under a certain hazard level. During strong ground motion (GM) such buildings suffer minor to major damages depending on the shaking level of GM. The available damage assessment methods are complex, tedious and time-consuming procedure. In the present study, a simplified empirical model h...

In this study, the variations of topside ionospheric irregularities during 24 geomagnetic storms with Dst ≤ −50 nT in 2015 were examined through an algorithm specifically designed to detect a significant level irregularities. The was developed use several parameters derived from total electron content (TEC) observations GRACE, Swarm-C, and Swarm-B. local time characteristics observed equatorial...

GPS L-band scintillations and total electron content (TEC) were recorded at Sanya (18.33◦N, 109.52◦E) during the period July 2004–July 2005. Automatic recorded raw digital scintillation data are analyzed to obtain the spectral characteristics of irregularities producing ionospheric scintillations and to estimate the correlation between amplitude scintillation and power spectral density. Concurr...