Original scientific paper Traditional dc electrical exploration method will face great challenge when detecting deep, complex geologic target. With the purpose, forward modelling and inverse modelling method of borehole resistivity has been developed. According to the characters of geology, the geological model has been set up. The numerical simulation shows that borehole resistivity method is ...

Three dimensional data is in great demand for the various applications. In order to represent 3D space in details, it is indispensable to acquire 3D shape and texture together efficiently. However, there still lack a reliable, quick, cheap and handy method of acquiring three dimensional data of objects at higher resolution and accuracy in outdoor and moving environments. In this research, we pr...

Inferring user’s location has emerged to be a critical and interesting issue in social media field. It is a challenging problem due to the sparse geo-enabled features in social media, for example, only less than 1% of tweets are geo-tagged. This paper proposes a location inferring model for microblog users who have not geo-tagged based on their tweets content and bilateral follow friends. An ap...

Previously, geo-sourcing to five major coca growing regions within South America was accomplished. However, the expansion of coca cultivation throughout South America made sub-regional origin determinations increasingly difficult. The former methodology was recently enhanced with additional stable isotope analyses ((2)H and (18)O) to fully characterize cocaine due to the varying environmental c...

Earth observation satellites with various spatial, spectral and temporal resolutions provide an invaluable means for mapping and monitoring the Earth’s environments. With the increasing demand of satellite images for remote and harsh environments and nature disaster areas such as earthquake, flooding, bushfires and other emergent events, quickly geo-positioning those images without using ground...

Abstract: Soil pH has a major effect on plant nutrient availability by controlling the chemical structure of the nutrient. Adjusting soil acidity or alkalinity improves soil nutrition without adding extra fertilizers. Soil nutrients needed by plants in the largest amount are referred to as macronutrients. In addition to macronutrients, plants also need trace nutrients and both macro and trace n...

Abstract. Communication during emergency and crises times is a critical aspect. When available information contains spatial dimension, maps interactive localization features may help conveying strong messages to audiences that are otherwise difficult reach. The COVID-19 pandemic has prompted the design implementation of great number online tools communicate data disease spread its dynamics help...

Karachi city is a coastal near the Arabian sea. Due to its location, wind speed may provide sustainable small scale energy system as well reduction in power shortage city. In this study, data of Airport station at 10m height used estimate surrounding area with reference measured station. This estimated will then be helpful assess generation unsampled locations. Geo-Statics tool ArcGIS version 1...