Explanipedia

Evaluation of emergency medical service application from a geographical location perspective in Turkey Open

Özgür Elmas, Rahmi Nurhan Çeli̇k · 2025

An important area of use of the geographic information systems in health is the organization of Emergency Medical Services (EMS). In this study, the EMS application offered in Turkey’s 81 provinces, in particular, Istanbul metropolis, whic…

Evaluation of Triple-Frequency GPS/Galileo/Beidou Kinematic Precise Point Positioning Using Real-Time CNES Products for Maritime Applications Open

Mohamed Abdelazeem, Rahmi Nurhan Çeli̇k · 2023

Our research aims to evaluate the triple-frequency GPS/Galileo/BeiDou kinematic precise point positioning (PPP) accuracy for the international maritime organization (IMO) positioning accuracy and integrity requirements. The real-time Centr…

Web-NDefA: Open-source and web-based online platform for 3-D deformation analysis of geodetic networks Open

Mehmet Bak, Rahmi Nurhan Çeli̇k · 2023

The static deformation analysis model and similarity (S)-transformation method are widely used for monitoring deformations in geodetic networks. With this popular analysis method, it is possible to determine the three-dimensional (3D) disp…

Bulut bilişimde sunucusuz mimariler ile coğrafi bilgi teknolojilerinin kullanımı üzerine bir inceleme Open

Mete Ercan Pakdil, Rahmi Nurhan Çeli̇k · 2022

From the perspective of resource management, cloud computing falls into three categories, namely, Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). Each model can be clarified in the respon…

A Web Based Open Source Deformation Analysis Platform for identifying Crustal Movements Open

Mehmet Bak, Rahmi Nurhan Çeli̇k · 2022

<p>Deformation measurements and deformation analysis are important fields of study in geodesy. Investigating the results obtained from the deformation analysis is very important for human safety. By monitoring the movements of the ea…

Web-NDefA: Açık kaynak kodlu GNSS tabanlı deformasyon analizi platformu Open

Mehmet Bak, Rahmi Nurhan Çeli̇k · 2022

Deformation analysis, one of the main research areas of geodesy, plays an important role for human safety. It is extremely important to determine the horizontal and vertical position changes and deformations due to the movements of the ear…

Serverless Geospatial Data Processing Workflow System Design Open

Mete Ercan Pakdil, Rahmi Nurhan Çeli̇k · 2021

Geospatial data and related technologies have become an increasingly important aspect of data analysis processes, with their prominent role in most of them. Serverless paradigm have become the most popular and frequently used technology wi…

DESIGN OF A SERVERLESS OGC WPS BASED GEOPROCESSING SERVICE SOLUTION Open

Mete Ercan Pakdil, Rahmi Nurhan Çeli̇k · 2021

Geospatial data and related technologies have increasingly become a crucial part of big data analysis processes and even a prominent player in most of them. Serverless architectures have become today's trending and widely used technology w…

The Assessment of Urbanization Effect and Sustainable Drainage Solutions on Flood Hazard by GIS Open

Seda Ertan, Rahmi Nurhan Çeli̇k · 2021

Rapid and uncontrolled changes in land use patterns due to urbanization negatively affect urban rainfall-runoff processes and flood hazard. In this study, a method that included different sustainable drainage solutions, such as green infra…

Analysis of big patient mobility data for identifying medical regions, spatio-temporal characteristics and care demands of patients on the move Open

Caglar Koylu, Selman Delıl, Diansheng Guo, Rahmi Nurhan Çeli̇k · 2018

Our approach helped identify (1) the mismatch between regional policy and practice in health care utilization (2) spatial, temporal, health service level characteristics and medical specialties that patients seek out by traveling longer di…

Clustering patient mobility patterns to assess effectiveness of health-service delivery Open

Selman Delıl, Rahmi Nurhan Çeli̇k, Sayın San, Murat Dündar · 2017

The most important contribution of this study is the development of a way to identify patient mobility patterns by analyzing patient movements across the clusters. These results are strong evidence that patient mobility patterns provide a …

MGR-DCB: A Precise Model for Multi-Constellation GNSS Receiver Differential Code Bias Open

Mohamed Abdelazeem, Rahmi Nurhan Çeli̇k, Ahmed El‐Rabbany · 2015

In this study, we develop a Multi-constellation Global Navigation Satellite System (GNSS) Receiver Differential Code Bias (MGR-DCB) model. The model estimates the receiver DCBs for the Global Positioning System (GPS), BeiDou and Galileo si…

Regional ionospheric delay correction model for single frequency PPP users in Turkey Open

Mohamed Abdelazeem, Rahmi Nurhan Çeli̇k, Ahmed El‐Rabbany · 2015

Ionospheric delay is the major challenge for Single-Frequency Precise Point Positioning (SF-PPP) users. Therefore, a number of organizations have developed ionospheric delay correction products including the International GNSS Service Glob…

SMART AERONAUTICAL CHART MANAGEMENT SYSTEM DESIGN Open

Mete Ercan Pakdil, Rahmi Nurhan Çeli̇k, Orhan Kaya, Y. C. Konak, Caner Güney · 2015

Civil aviation is developing rapidly, and the number of domestic and international operations is increasing exponentially every year than the previous one. Airline companies with increased air traffic and the number of passengers increase …

An Enhanced Real-Time Regional Ionospheric Model Using IGS Real-Time Service (IGS-RTS) Products Open

Mohamed Abdelazeem, Rahmi Nurhan Çeli̇k, Ahmed El‐Rabbany · 2015

Recently, the International Global Navigation Satellite System (GNSS) Service (IGS) has launched the Real-Time Service (IGS-RTS). The RTS products enable real-time precise positioning applications. For single-frequency Real-Time Precise Po…

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