Results 41 to 50 of about 13,322 (254)

Unveiling the Mechanisms Underlying the Accelerated Channel Lining Concrete Damage Caused by Freeze-Thaw-Wind-Sand Erosion

Guan'gai paishui xuebao, 2023
【Objective】 This study delves into the mechanisms underlying the damage and failure of concrete linings in hydraulic channels in cold regions in Northern China that are prone to freeze-thaw, wind and sand erosion.
LIU Wei, ZOU Chunxia, LI Hongyun, HUANG Kun, GUO Xiaosong, SONG Yuxin   +5 more
doaj   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Spatiotemporal Dynamics and Drivers of Wind Erosion during 1990–2020 in the Yarlung Zangbo River Basin, Southern Tibetan Plateau

Land, 2023
Wind erosion is recognized as one of the main environmental issues and seriously threatens ecosystem services in the Yarlung Zangbo River basin (YZRB), southern Tibetan Plateau. Exploring the spatiotemporal dynamics and drivers of wind erosion is crucial
Xiaomin Qin, Dongmei Zhao, Baojun Zhang, Donghong Xiong, Zhengrong Yuan, Wenduo Zhang, Lin Liu, Dil Kumar Rai, Sheikh Laraib, Wei Deng   +9 more
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Evaluating preservation methods for identifying Anopheles gambiae s.s. and Anopheles arabiensis complex mosquitoes species using near infra-red spectroscopy

Parasites & Vectors, 2015
Background Near-infrared spectroscopy (NIRS) has been successfully used on fresh and RNAlater®-preserved members of the Anopheles gambiae complex to identify sibling species and age.
Valeriana Simon Mayagaya, Alex John Ntamatungiro, Sarah Jane Moore, Robert Andrew Wirtz, Floyd Ercell Dowell, Marta Ferreira Maia   +5 more
doaj   +1 more source

Estimation of regional differences in wind erosion sensitivity in Hungary [PDF]

Natural Hazards and Earth System Sciences, 2015
In Hungary, wind erosion is one of the most serious natural hazards. Spatial and temporal variation in the factors that determine the location and intensity of wind erosion damage are not well known, nor are the regional and local sensitivities to ...
G. Mezősi, V. Blanka, T. Bata, F. Kovács, B. Meyer   +4 more
doaj   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

An improvement of the Revised Wind Erosion Equation by considering the effect of non-photosynthetic vegetation

Geoderma
Non-photosynthetic vegetation (NPV) can significantly impact the magnitude of wind erosion. However, most wind erosion models did not take NPV into account, which led to large uncertainties in wind erosion simulation.
Xiufan Liu, Heqiang Du, Xinlei Liu, Yawei Fan, Sen Li, Tao Wang, Zichen Guo   +6 more
doaj   +1 more source

Comparing the Results of RWEQ and IRIFR Models for Determining of Land Management Effects on Wind Erosion [PDF]

مدیریت بیابان, 2015
If the wind speed got faster than soil erosion threshold and soil surface with plants, residuals and surface roughness are protected, then the process will lead to wind erosion.
Ali Akbar Nazari Samani, Amir Hooshang Ehsani, Ahmad Golivari, Mahsa Abdolshahnejad   +3 more
doaj   +1 more source

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

Advanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal, Cevher Kursat Macit, Merve Ayık, Hakan Tutumlu   +3 more
wiley   +1 more source