Sliding Mode Control Approach for Vision-Based High-Precision Unmanned Aerial Vehicle Landing System Under Disturbances by Hao Wu, Wei Wang, Tong Wang, Satoshi Suzuki

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Predicting snow structures relevant to reindeer husbandry by Emma T. D. Perkins, Amanda H. Lynch, Vera Solovyeva, David A. Bailey

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Climatic study of dust phenomenon in Semnan province and calculation of vertical dust flux by using GOCART model by Sara Karami, Nasim Hossein Hamzeh, Abbas Ranjbar

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Study on Strength Attenuation Characteristics of Residual Expansive Soil under Wetting-Drying Cycles and Low Stress and Its Relationship with Shallow Landslide by Jin Chang, Jieling Ma, Xianyuan Tang

“…The rapid development of expansive soil fissures and the attenuation of strength under the action of repeated atmospheric wetting-drying cycles have a very adverse impact on the shallow stability of expansive soil slope. …”
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Simulating Heavy Meiyu Rainfall: A Note on the Choice of the Model Microphysics Scheme by Zhimin Zhou, Yi Deng, Yang Hu, Zhaoping Kang

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Sensitivity Study of WRF Parameterization Schemes and Initial Fields on Rainstorm Simulation in Minjiang River Basin by LIN Sinuo, ZHANG Yinchi, SUN Shao, GUAN Xiaojun, JIANG Caiying, GAO Lu

“…,weather research and forecasting (WRF) model,16 sets of microphysical processes and cumulus convection parameterization schemes are cross-combined to simulate the sensitivity of a continuous rainstorm process in the Minjiang River Basin from May 17 to 24,2021.The results show that the WRF model can reproduce the spatio-temporal distribution characteristics of this rainfall process,but it significantly overestimates the intensity and extent of the storm center,with the overall better performance of EXP9 (Lin-NT combination).For the mass sensitivity test of initial fields,the simulation results based on the optimal combination of parameterization schemes reveal that the fifth-generation atmospheric reanalysis of the European Center for Medium-Range Weather Forecasts (ERA5) has a sound effect for all magnitudes of rainfalls.Meanwhile,it best matches the spatio-temporal characteristics of the observed data,followed by global data assimilation system/final operational global analysis (GDAS/FNL),while climate forecast system operational analysis (CFS) is the worst.This study can provide methodological references for improving the accuracy of extreme rainfall simulation and forecasting.…”
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Effects of CaO, Al2O3 and MgO on liquidus temperatures of copper smelting and converting slags under controlled oxygen partial pressures by Zhao B., Hayes P., Jak E.

“…Phase equilibria of silicate slags relevant to the copper smelting/converting operations have been experimentally studied over a wide range of slag compositions, temperatures and atmospheric conditions. Selected systems are of industrial interest and fill the gaps in fundamental information required to systematically characterise and describe copper slag chemistry. …”
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Capacity Density Assessment of Satellite Constellation Network by Xian MENG, Dali QIN, Yu WANG, Chuili KONG, Hejia LUO, Jun WANG

“…The traditional analytical method greatly underestimates the throughput capability of the system in low beam density scenario, and cannot reveal the capacity saturation phenomenon in high beam density scenario.To overcome the preceding problems, a new system simulation method was proposed to accurately evaluated the capacity density indicator of satellite constellation network and integrated satellite and terrestrial network, Based on this method, first, the capacity density of different longitude and latitude regions of the earth was evaluated.It could be observed that the capacity density of the same region varies greatly with the movement of the satellite, and the maximum capacity density was twice the minimum.Then, areas with higher visibility usually had higher capacity density.In high-frequency scenarios, the impact of atmospheric attenuation on capacity density could not be ignored.Finally, for the integrated satellite and terrestrial network, the evaluation results showed that the capacity density of cellular coverage and satellite coverage could differ by four orders of magnitude.In order to improved the capacity density of satellite constellation network, two technical paths were attempted: increasing the maximum number of illuminated beams and increasing the satellite scale.The results showed that the performance was better when the constellation scale was increased when the total beams of the constellation were the same.However, the two ways to increase the total number of beams in a constellation had an upper bound on capacity, and the marginal effect decreased significantly.Finally, a scheme to increase the gain of satellite antenna was proposed.The simulation results showed that the proposed scheme could significantly increase the capacity density of constellation.…”
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Influence of technological factors of melting on the structure and properties of modified heat‑resistant chrome bronzes by F. G. Lovshenko, I. A. Lozikov

“…The role of protective atmospheres and deoxidizers in the formation of the chemical composition of alloys is studied and their optimal combination is proposed, consisting in a combination of Cryolite and argon to protect the copper melt during alloying with its preliminary deoxidation with a modifier based on the composition “Cu – 10 % B”, developed and produced at a pilot production facility at the Belarusian‑Russian University. …”
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Investigation of Parameters of Fused Deposition Modelling 3D Prints with Compression Properties by Dereje Berihun Sitotaw, Dominik Marcel Muenks, Yordan Kostadinov Kyosev, Abera Kechi Kabish

“…The different printed samples were subjected to atmospheric conditions for 24 hours at (20 ± 1)°C temperature and (65 ± 2)% relative humidity. …”
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Bayesian Inference for Solar Flare Extremes by B. Griffiths, L. Fawcett, A. C. Green

“…The data used have been provided by the National Oceanic and Atmospheric Organisation and consist of recordings of peak flux measurements. …”
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The Study of Anthropogenic Effect on the Intensification of Floods in Summer Catchment Basin, Case Study: Kan, Tehran ( by khadijeh heydarian, siavash shayan, Hossein jahantigh

“…Summer catchment basins surrounding the city of Tehran, due to their remoteness from atmospheric pollution and urban manifestations, is considered as a place for exploring and recreating for many people, and as a place for money making out of restaurants attracting many tourists for others. …”
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Factors Controlling Stable Hydrogen,Oxygen,and Carbon Isotope Ratios in Regional Shallow Groundwater of Guangzhou City,China by ZENG Hui, ZHUO Quanlong, ZHANG Mingzhu, PANG Yuan, LIANG Zuobing

“…To investigate the distribution characteristics and controlling factors of stable hydrogen,oxygen,and carbon isotopes in shallow groundwater in Guangzhou,18 shallow groundwater monitoring wells in Guangzhou were selected.This study analyzed the component characteristics of stable hydrogen and oxygen isotopes in surface water and groundwater,stable isotopes of dissolved inorganic carbon in groundwater,and ammonium nitrogen isotope in groundwater in Guangzhou City and investigated the influencing factors of groundwater hydrological characteristics and the evolution of dissolved inorganic carbon.The results show that atmospheric precipitation is an important source of shallow groundwater recharge,and there is a close hydraulic connection between groundwater and surface water in Conghua District,northern Guangzhou,where precipitation directly recharges groundwater and is less affected by evaporation;near the southern coastal area of Guangzhou,groundwater may be affected by seawater intrusion.The deuterium excess parameter (d-excess) values in groundwater in Conghua District are significantly influenced by the control of groundwater retention time,and the significantly low d-excess values in the southern coastal area of Guangzhou may be influenced by the seawater intrusion.The evolution of DIC in shallow groundwater is significantly influenced by anthropogenic factors,and the value of δ¹³C_DIC in the water body is higher.In contrast,high-ammonium groundwater mainly comes from the degradation of natural organic matter,and the high concentration of NH⁺₄ is the main reason for the abnormally high δ¹³C_DIC value in groundwater.…”
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Estimation of relative humidity in Hormozgan province using MODIS products by Masihollah Mohammadi, behrooz sobhani

“…Relative humidity is considered to be one of the most important climatic parameters and atmospheric phenomena. The purpose of the present study is to evaluate the regional algorithms for estimating relative humidity using remote sensing data in Hormozgan province. …”
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Parameter Sensitivity Analysis and Optimization of the Single-Layer Urban Canopy Model in the Megacity of Shanghai by Xiangyu Ao, Ning Zhang

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Semantic segmentation of glaciological features across multiple remote sensing platforms with the Segment Anything Model (SAM) by Siddharth Shankar, Leigh A. Stearns, C. J. van der Veen

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Understanding the spread of agriculture in the Western Mediterranean (6th-3rd millennia BC) with Machine Learning tools by Maria Elena Castiello, Emmanuele Russo, Héctor Martínez-Grau, Ana Jesus, Georgina Prats, Ferran Antolín

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Airglow Measurements of Gravity Wave Propagation and Damping over Kolhapur (16.5°N, 74.2°E) by R. N. Ghodpage, A. Taori, P. T. Patil, S. Gurubaran, A. K. Sharma, S. Nikte, D. Nade

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Deep Electron Density Depletion Near Sunset Terminator on St. Patrick's Day Storm and Its Impacts on Skywave Propagation by M. Ankita, S. Tulasi Ram, K. K. Ajith, S. Sripathi

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Molecular-level characterization of supraglacial dissolved and water-extractable organic matter along a hydrological flow path in a Greenland Ice Sheet micro-catchment by E. L. Doting, E. L. Doting, I. T. Stevens, A. M. Kellerman, P. E. Rossel, R. Antony, R. Antony, A. M. McKenna, A. M. McKenna, M. Tranter, L. G. Benning, L. G. Benning, R. G. M. Spencer, J. R. Hawkings, J. R. Hawkings, A. M. Anesio

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