Assessment of landslide hazard models in Chamsangar basin by siamak baharvand, salman soori

“…To study the stability of slopes in the Chamsang field, in first step the sliding point and subsequent distribution maps of landslide were prepared using satellite images and field visits (recording the sliding points by GPS). in this study, Landslide-related factors such slope, aspect, altitude, lithology, rainfall, landuse and distance from the road and drainage used in the landslide susceptibility analyses. …”
Get full text

Spatial analysis of annual precipitation of Khuzestan province; An approach of spatial regressions analysis by Saeed balyani

“…Accordingly, it was found that, in east, northeast and north of province the altitudes, in east and northeast and Zagros Mountains the view shade and slope are the most important spatial factors, respectively.…”
Get full text

Mars Atmospheric Entry Integrated Navigation with Partial Intermittent Measurements by Tai-shan Lou, Yan Wang, Guo-qiang Ding, Liang-yu Zhao

“…The communications brownout and blackout periods are analyzed and predicted with an altitude and velocity profiles. In the brownout period, the range measurements between the vehicle and the orbiters are modeled as intermittent measurements with the radio signal arrival probabilities, which are distributed as a Rayleigh distribution of the electron number density around the entry vehicle. …”
Get full text

Dynamic Antenna Alignment Control in Microwave Air-Bridging for Sky-Net Mobile Communication Using Unmanned Flying Platform by Chin E. Lin, Ying-Chi Huang

“…This paper presents a preliminary study on establishing a mobile point-to-point (P2P) microwave air-bridging (MAB) between Unmanned Low Altitude Flying Platform (ULAFP) and backhaul telecommunication network. …”
Get full text

Potential Distribution of Chagas Disease Vectors (Hemiptera, Reduviidae, Triatominae) in Colombia, Based on Ecological Niche Modeling by Gabriel Parra-Henao, Laura C. Suárez-Escudero, Sebastián González-Caro

“…The variables that provided more information to explain the ecologic niche of these vectors were related to precipitation, altitude, and temperature. We found that the species with the broadest potential geographic distribution were P. geniculatus, R. pallescens, and R. prolixus. …”
Get full text

The "Low Slow and Small" UAV target detection and tracking algorithm based on improved YOLOv7 and DeepSort by JIAN Yuhong, YANG Huiyue, WANG Xinggang, RONG Yisheng, ZHU Yukun

“…To improve the accuracy of Low altitude unmanned aerial vehicle(UAV) target detection and tracking, an improved UAV detection algorithm based on YOLOv7 and DeepSort framework is proposed. …”
Get full text

Assessment of environmental capabilities and capabilities of Tarom city for olive production and cultivation by Vahid Riahi, saeid nasire zare

“…The purpose of this study was to evaluate and evaluate the environmental capabilities of olive cultivation in Tarom city and to analyze the location of its producing rural areas. Hence, from altitude, slope and slope status as terrestrial parameters and three climate parameters as relative rainfall, temperature and relative humidity data from 11 meteorological, synoptic and rain gauge stations with appropriate statistical period (1375-1395) and A common time base was used for climatic zoning. …”
Get full text

Estimating Target Heights Based on the Earth Curvature Model and Micromultipath Effect in Skywave OTH Radar by Hou Chengyu, Wang Yuxin, Chen Jiawei

“…Current OTH radar systems are capable of localizing targets in range and azimuth but are unable to achieve reliable instantaneous altitude estimation. Most existing height measurement methods of skywave OTH radar systems have taken advantage of the micromultipath effect and been considered in the flat earth model. …”
Get full text

CLIMATE CHANGE IMPACT UPON WATER RESOURCES IN THE BUZĂU AND IALOMIŢA RIVER BASINS by RODICA PAULA MIC, CIPRIAN CORBUŞ, ARISTIŢA BUSUIOC

“…Ces changements étaient localement spécifiques, apparemment dans la connexion avec la position géographique et l’altitude des sousbassins. Dans les mois d’hiver et printaniers, un écoulement augmenté et temporellement modifié a été modelé aux parties significatives de sous-basins situés dans les régions montagneuses. …”
Get full text

Probabilidades de detectar rayos gamma o cósmicos por HAWC con el juego del embaldosado libre by Margarita Tetlalmatzi Montiel, Erika Elizabeth Rodríguez Torres, Rafael Villarroel Flores

“…Se asocia el juego del embaldosado libre de Buffon con la probabilidad de que el observatorio HAWC (High Altitude Water Cherenkov) detecte cascadas creadas por rayos cósmicos y rayos gamma de altas energías. …”
Get full text

Assessing climate-growth relationships with daily and monthly observational and gridded meteorological data by Nina Škrk Dolar, Katarina Čufar, Jernej Jevšenak

“…However, no significant difference was observed between maximum correlation coefficients using the meteorological station and modelled data, and the difference did not change significantly with increasing altitude. …”
Get full text

Study of the atmospheric neutron radiation effects using compact laser-driven spallation neutron source by Z. B. Wu, Y. L. Yao, X. F. Shen, K. Li, A. D. Liu, X. T. He, B. Qiao

“…According to the LS scaling law, proton energy spectra can be regulated by adjusting the laser and foil target parameters, so that the neutron spectra at various atmospheric altitudes are well reproduced. Integrated PIC and MC simulations have verified the scheme (for that at altitude 12 km, laser intensity of 10^{22}W/cm^{2} is required) and shown that the neutron fluence per laser shot is as high as 1.73×10^{8}n/cm^{2}, equivalent to 3.7 year flux accumulation in atmosphere. …”
Get full text

Multirotor UAV-Based Photogrammetric Mapping for Road Design by Muhammad Akmal Zulkipli, Khairul Nizam Tahar

“…This study focuses on the UAV as a tool to capture data of the ground from a certain altitude. The analysis includes UAV flight planning, image acquisition, and accuracy assessment of road design. …”
Get full text

Simultaneous prediction of 10m and 100m wind speeds using a model inspired by brain emotional learning by Alireza Hakimi, Parvin Ghafarian

“…Abstract Predicting wind speed simultaneously at multiple heights, particularly at 10 and 100 metres (m), presents unique challenges due to diverse influences. At lower altitudes, wind speed is significantly affected by surface factors including roughness, vegetation, and man-made structures, causing sharp fluctuations, while at higher altitudes, it is primarily influenced by atmospheric conditions, resulting in smoother flow patterns. …”
Get full text

Elevation gradient effects on grassland species diversity and phylogenetic in the two-river source forest region of the Altai Mountains, Xinjiang, China by Jing Che, Jing Che, Mao Ye, Mao Ye, Qingzhi He, Qingzhi He, Guoyan Zeng, Guoyan Zeng, Miaomiao Li, Miaomiao Li, Weilong Chen, Weilong Chen, Xiaoting Pan, Xiaoting Pan, Jiaorong Qian, Jiaorong Qian, Yexin Lv, Yexin Lv

“…Altitude, as a key environmental factor, shapes the spatial patterns of species diversity, phylogenetic diversity, and community phylogenetic structure. …”
Get full text

La répartition des chimpanzés à Sebitoli (Parc National de Kibale, Ouganda): influence des facteurs naturels et anthropiques by Sarah Bortolamiol, Marianne Cohen, Milena Palibrk, Sabrina Krief

“…Also chimpanzees most likely occupy high altitude areas (around 1515 meters) and river banks. …”
Get full text

Prescribed Performance Tracking Control for the Hypersonic Vehicle with Actuator Faults by Zhenghui Yang, Wentao He, Yushan He, Yaen Xie, Jun Li, Shuo Song

“…This paper provides a solution for the trajectory tracking control of a hypersonic flight vehicle (HFV), which is encountered performance constraints, actuator faults, external disturbances, and system uncertainties. For the altitude and velocity control subsystems, the backstepping-based dynamic surface control (DSC) strategy is constructed to guarantee the predefined constraint of tracking errors. …”
Get full text

Comparison of numerical model, neural intelligent and GeoStatistical in estimating groundwater table by Maryam Bayatvarkeshi, Rojin Fasihi

“…Moreover, in the neural intelligent models were applied latitude, longitude and altitude as available variables in input models. The zoning results of groundwater table indicated that the decreased trend of groundwater table was from the west to the east of aquifer which was in line with the hydraulic gradient.…”
Get full text

Study on Helicopter Antitorque Device Based on Cross-Flow Fan Technology by Du Siliang, Tang Zhengfei, Xu Pei, Ji Mengjiang

“…In order to improve low-altitude flight security of single-rotor helicopter, an experimental model of a helicopter antitorque device is developed for wind tunnel test. …”
Get full text

A Novel Technique to Compute the Revisit Time of Satellites and Its Application in Remote Sensing Satellite Optimization Design by Xin Luo, Maocai Wang, Guangming Dai, Xiaoyu Chen

“…When the side-lap, the range of altitude, and desired revisit time are determined, a lot of orbit solutions which meet the mission requirements will be obtained fast. …”
Get full text