CPP: a path planning method taking into account obstacle shadow hiding by Ruixin Zhang, Qing Xu, Youneng Su, Ruoxu Chen, Kai Sun, Fengchang Li, Guo Zhang

“…It started by designing shadow areas in the configuration environment based on solar azimuth and altitude angles. A gravitational field model was then created using these shadow areas and the target point’s position to guide the path point movement, achieving a path with a higher safety coefficient. …”
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Moving Target Localization in Sports Image Sequence Based on Optimized Particle Filter Hybrid Tracking Algorithm by Yan Guo

“…In order to determine the initial absolute position of the stadium positioning, for athletes entering the stadium from the outside, a seamless switching algorithm outside the stadium is proposed, using the characteristics of high-altitude satellite GPS to find a suitable switching point as the initial absolute position. …”
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Investigating the Applicability of the Peak Density Thickness Parameter over the Equatorial Region by Mohamed O. Shammat, Bodo W. Reinisch, Ivan Galkin, Philip J. Erickson, Jay A. Weitzen, William C. Rideout

“…The Peak Density Thickness (PDT) refers to a vertical region in the ionosphere encompassing the F2 peak, where electron density is at its maximum, and extending upward—maintaining a constant density—for a fixed altitude beyond this peak. This study builds on the previously established PDT concept, initially explored at midlatitudes using data from Millstone Hill, by evaluating its applicability and effectiveness over equatorial latitudes using data from the Jicamarca Incoherent Scatter Radar (ISR) in Lima, Peru. …”
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Soil organic and phytomass carbon stocks in mountain periglacial settings of Vindelfjällen (Sweden) by Christina Fröjd, Berta González Sánchez, Peter Kuhry

“…We present a detailed soil organic carbon (SOC) and phytomass carbon (C) inventory for a mountain periglacial region in northwest Sweden (altitude range c. 600–1,800 m). We describe plant cover and soil profiles at thirty-nine sites representing the main land cover classes at and above tree line. …”
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Air temperature estimation based on environmental parameters using remote sensing data by Chenoor Mohammadi, Manouchehr Farajzadeh, Yousef Ghavdel Rahimi, Abbas Ali Aliakbar Bidokhti

“…This study is aimed at estimating monthly mean air temperature (Ta) using the MODIS Land Surface Temperature (LST), Normalized Difference Vegetation Index (NDVI), latitude, altitude, slope gradient and land use data during 2001-2015. …”
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A small object detection model in aerial images based on CPDD-YOLOv8 by Jingyang Wang, Jiayao Gao, Bo Zhang

“…These images are often taken from a high altitude and contain many small objects. It is difficult to detect small objects accurately because their features are not obvious and are susceptible to background interference. …”
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Technical note: Recommendations for diagnosing cloud feedbacks and rapid cloud adjustments using cloud radiative kernels by M. D. Zelinka, L.-W. Chao, T. A. Myers, T. A. Myers, Y. Qin, S. A. Klein

“…<p>The cloud radiative kernel method is a popular approach to quantify cloud feedbacks and rapid cloud adjustments to increased <span class="inline-formula">CO₂</span> concentrations and to partition contributions from changes in cloud amount, altitude, and optical depth. However, because this method relies on cloud property histograms derived from passive satellite sensors or produced by passive satellite simulators in models, changes in obscuration of lower-level clouds by upper-level clouds can cause apparent low-cloud feedbacks and adjustments, even in the absence of changes in lower-level cloud properties. …”
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Spatial-Temporal Variations and Influencing Factors of Water-related Ecosystem Services in Southwest China Under Complex Terrain by TANG Shuang, ZHU Chongjing, GAO Jie, BIAN Hongyan

“…[Results] (1) From 1992 to 2020, water yield in Southwest China showed a downward trend, with a notable mutation occurring in 2002; soil erosion showed an increasing trend, with a mutation observed in 1997. (2) The water yield decreased and soil erosion increased with rising altitude. (3) The relative contribution rate of precipitation to both water yield and soil erosion in karst areas was found to be greater than that in non-karst areas. …”
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Advancing CO2++ Modeling in the Martian Dayside Ionosphere: Insights from Natural Lifetime Analysis by Long Cheng, Erik Vigren, Moa Persson, Hao Gu, Jun Cui

“…Specifically, when treating CO _2 ^++ as stable against natural dissociation, instead of invoking a lifetime of 4 s as done in previous studies, the data-to-model ratio comes close to unity throughout the altitude range 160–220 km. We argue that stability of CO _2 ^++ against natural dissociation does not necessarily conflict with results from a frequently cited experimental investigation. …”
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Enriched environment prevents hypobaric hypoxia induced memory impairment and neurodegeneration: role of BDNF/PI3K/GSK3β pathway coupled with CREB activation. by Vishal Jain, Iswar Baitharu, Dipti Prasad, Govindasamy Ilavazhagan

“…Male Sprague Dawley rats were simulated to HH condition in an Animal Decompression Chamber at an altitude of 25000 feet in standard and enriched cages for 7 days. …”
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Study on the stability of excavation process of permafrost subgrade slope in Alpine region by Zhilong Zhang, Jiyang Zhang, Jiangang Chen, Jing Luo, Bingbing Lei

“…Abstract The high-altitude mountainous half-excavated and half-filled embankment slopes primarily focus on the long-term stability of slopes, while the safety evaluation methods for the excavation process have received comparatively less attention. …”
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Improving Performance of Integrated Ground-HAPS FSO Communication Links With MIMO Application by Emna Zedini, Yalcn Ata, Mohamed-Slim Alouini

“…The FSO links span ground-to-high altitude platform system (HAPS), HAPS-to-ground, and HAPS-to-HAPS configurations. …”
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Spatiotemporal variation in population size and relative abundance of Kalij pheasant (Lophura leucomelanos) in scrub forest. by Maria Saba, Sangam Khalil, Majid Hussain, Surrya Khanam, Ali Akhter, Rukhsana Khatoon, Muhammad Awais Khan, Kamal Ahmed Khan, Zartasha Gul, Ume Habiba

“…In Pakistan, pheasants occur from 245-3050 m in altitude, and one of these, the Kalij pheasant (Lophura leucomelanos) is a large-bodied, brightly-colored habitat quality indicator species. …”
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Baseline hydro-geochemical characteristics of groundwater in Abu Ali watershed (Northern Lebanon) by Rachad Al Haj, Mohammad Merheb, Jalal Halwani, Baghdad Ouddane

“…The first group is characterized by high-altitude springs with low residence times. Another group, at slightly lower altitudes, shares the same geological formation (Cenomanian-Turonian) and includes a large number of wells. …”
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The correlation of region-specific lifestyle and subjective perception of oral health with oral health-related quality of life among Tibetan early adolescents in Ganzi: a cross-sec... by Shaoying Duan, Renjie Tang, Chenchen Zhang, Qianqian Su, Huiyu Yang, He Cai, Tao Hu

“…In relation to region-specific lifestyle, the factors associated with poorer OHRQoL were residence altitude of 3,300 m (compared to 1,400 m), buttered tea consumption by adolescents or mother, and being a boarding student. …”
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Study on the effects of land use transformation on habitat quality and its driving mechanisms: a case study of the Qin-Mang River Basin by Jiwei Zhao, Luyao Wang, Dong Jia, Yaowen Wang

“…The HQ index decreased from 0.3409 in 1992 to 0.2896 in 2022, with a significant increase in spatial heterogeneity. Altitude, vegetation coverage, temperature, precipitation, and slope are the main driving factors influencing HQ, with natural factors dominating, but human activities gradually playing an increasingly significant role. …”
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Determining the risk factors of malaria and anemia in children between 6 and 59 months using the joint generalized linear mixed model on the 2021 Nigeria Malaria Indicator Survey d... by Talani Mhelembe, Shaun Ramroop, Faustin Habyarimana

“…The following underlying risk factors for malaria and anemia in children were discovered in the study: region, altitude, age of child in months, toilet facility of the household, main wall material used for the house, main roof material used for the house, children under five who slept under a mosquito net, whether the child had fever in last 2 weeks before the survey took place, place of residence where the child resides, household wealth index, sex of child, and mother’s education level. …”
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Statistical characteristics and classification of ionospheric mid-latitude trough as revealed by the observations of DMSP-F18 by Yi Liu, JiuHou Lei, FuQing Huang, Su Zhou

“…The data was obtained at an altitude of around 860 km in near polar orbit, throughout 2013. …”
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A light microscopic investigation on the histology and alpha-naphthyl acetate esterase (anae)- and acid phosphatase (acp-ase) positive lymphocyte localization in the hemal nodes of... by Nariste Kadıralieva, Emrah Sur, Tuğba Özaydın, Şamil Sefergil

“…Besides, yaks can survive and adaptable to the highly extreme ecological conditions such as high altitude, very low annual average temperature, short growing season for calf, and great seasonal variation in feed supply. …”
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Risk and protective factors for ASF in domestic pigs and wild boar in the EU, and mitigation measures for managing the disease in wild boar by European Food Safety Authority (EFSA), Anette Ella Boklund, Karl Ståhl, Miguel Ángel Miranda Chueca, Tomasz Podgórski, Timothée Vergne, José Cortiñas Abrahantes, Eleonora Cattaneo, Sofie Dhollander, Alexandra Papanikolaou, Stefania Tampach, Lina Mur

“…Other factors, such as vegetation, altitude, climate and barriers affecting population connectivity, also played a role on ASF epidemiology in wild boar. …”
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