Suggested Topics within your search.
Suggested Topics within your search.
- Geography 2
- Sociology 2
- Citizen participation 1
- Conservation of natural resources 1
- Electric wiring 1
- Electric wiring, Interior 1
- Environmental policy 1
- Geology 1
- Human ecology 1
- Human geography 1
- Insurance requirements 1
- Remote sensing 1
- SCIENCE / Earth Sciences / Geography 1
- SOCIAL SCIENCE / Human Geography 1
- Study and teaching (Higher) 1
- Sustainable development 1
- geography 1
-
3881
-
3882
-
3883
Evaluation of machine learning algorithms in tunnel boring machine applications: a case study in Mashhad metro line 3
Published 2024-12-01“…Abstract Accurately predicting the performance of Earth Pressure Balance Tunnel Boring Machines (EPB-TBMs) in soft ground conditions is crucial yet challenging due to the complex interaction of geological and operational factors. …”
Get full text
Article -
3884
-
3885
Upper bound stability analysis of tiered geosynthetic-reinforced soil wall
Published 2025-01-01“…The proposed method was firstly validated by the existing results from the centrifuge test and the numerical method, and then a parametric study was performed to investigate the effects of the cohesionless backfill friction angle φ1 and the wall geometric parameters including the offset distance, the total wall height, the batter angle δ, the number of tiers n, and wall height ratio of adjacent tiers on the dimensionless equivalent earth pressure coefficient KT. The analysis results demonstrated that as the φ1 increases, the shear strength of backfill is enhanced and thus the KT or the total reinforcement tensile force decreases, and the KT decreases with the increase of the offset distance at the initial stage and then becomes stable when it reaches a certain critical value. …”
Get full text
Article -
3886
-
3887
Disentangling the Roles of Climate Variables in Forest Fire Occurrences in China
Published 2024-12-01“…Here, using GIS spatial analysis, Pearson correlation, and geographical detector, the climate drivers of forest fires in China are revealed using the 2003–2022 active fire data from the MODIS C6 and climate products from CHELSA (Climatologies at high resolution for the Earth’s land surface areas). The main conclusions are as follows: (1) In total, 82% of forest fires were prevalent in the southern and southwestern forest regions (SR and SWR) in China, especially in winter and spring. (2) Forest fires were mainly distributed in areas with a mean annual temperature and annual precipitation of 14~22 °C (subtropical) and 800~2000 mm (humid zone), respectively. (3) Incidences of forest fires were positively correlated with temperature, potential evapotranspiration, surface downwelling shortwave flux, and near-surface wind speed but negatively correlated with precipitation and near-surface relative humidity. (4) Temperature and potential evapotranspiration dominated the roles in determining spatial variations of China’s forest fires, while the combination of climate variables complicated the spatial variation. …”
Get full text
Article -
3888
-
3889
High-Power MHz to 100s of GHz Circuits and Systems for Nuclear Fusion Reactors With Examples From SST-1 and ITER
Published 2024-01-01“…Nuclear fusion on earth is a highly complex and challenging multidisciplinary field that aims to solve the global energy puzzle by providing infinite energy with zero carbon emissions. …”
Get full text
Article -
3890
Path Loss Channel Model for Inland River Radio Propagation at 1.4 GHz
Published 2017-01-01“…In this paper, a propagation path loss model for inland river is proposed by three improvements compared with the Round Earth Loss (REL) model for open-sea environment. …”
Get full text
Article -
3891
Development and construction of a portable wind tunnel for investigating wind erosion through the application of photogrammetry techniques
Published 2025-01-01“…Abstract Climate change is one of the most crucial issues in human society such that if it is not given sufficient attention, it can become a great threat to both humans and the Earth. Due to global warming, soil erosion is increasing in different regions. …”
Get full text
Article -
3892
A Safety Case for the Use of Bipolar ±60V DC for Microgrids
Published 2025-01-01“…This functionality has been incorporated into a practical system providing protection against series, line-line and line-earth arc faults. A comprehensive touch voltage assessment with reference to IEC 60479 confirms that the proposed system voltage does not present risk of ventricular fibrillation based on values of body impedance corresponding to the 5th percentile of the population.…”
Get full text
Article -
3893
On the Occurrence of GPS Signal Amplitude Degradation for Receivers on Board LEO Satellites
Published 2020-02-01“…In this study we provided the first comparison of the GPS signal amplitude degradations from receivers on board low Earth orbiting satellites at different altitudes. …”
Get full text
Article -
3894
Integrating landscape ecological risk with ecosystem services in the Republic of Tatarstan, Russia
Published 2024-04-01Get full text
Article -
3895
-
3896
Analysis of Rainfall Trends and Its Relationship with SST Signals in the Lake Tana Basin, Ethiopia
Published 2018-01-01Get full text
Article -
3897
C-SAR/02 Satellite Polarimetric Calibration and Validation Based on Active Radar Calibrators
Published 2025-01-01“…Quad-polarization synthetic aperture radar (SAR) satellites are important detection tools in Earth observation and remote sensing; in particular, they are of great significance for accurately interpreting radar data and inverting geophysical parameters. …”
Get full text
Article -
3898
-
3899
Study on Developments in Protection Coating Techniques for Steel
Published 2022-01-01“…Steel, also known as iron alloy, is found 35% of the whole mass of the Earth. It is found in many applications due to its unique properties. …”
Get full text
Article -
3900
Identifying clusters of precipitation for the Brazilian Legal Amazon based on magnitude of trends and its correlation with sea surface temperature
Published 2024-06-01“…In this study, we identify these regions in the Brazilian Legal Amazon based on the magnitude of Sen’s Slope trends using annual precipitation data from September to August, employing the Google Earth Engine platform. Utilizing the silhouette method, we determine four distinct clusters representing zones of homogeneous precipitation patterns. …”
Get full text
Article