Results 21 to 30 of about 9,794,287 (242)

Soil compounding promotes the improvement of aeolian sandy soil in the Mu Us Sandy Land

Frontiers in Environmental Science
Aeolian sandy soil and loess soil of the Mu Us Sandy Land are used as the research material in this study to investigate the effect of soil compounding on the improvement of aeolian sandy soil and to provide a feasible approach for sand prevention and ...
Shichao Chen, Shichao Chen, Xue Chen, Xue Chen, Hejun Zuo, Hejun Zuo, Min Yan, Min Yan, Haibing Wang, Haibing Wang, Xiaole Li, Xiaole Li   +11 more
doaj   +1 more source

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

Investigating the Effect of Inclination Angle and the Influence of Scan Parameters on the Appearance and Thermal and Mechanical Properties of Filigree Tension Rods of LPBF‐Manufactured NiTi Shape‐Memory Alloys

Advanced Engineering Materials, EarlyView.
This article investigates the dependence of the properties on the manufacturing orientation in the form of the inclination angle to the build plate of LPBF‐fabricated NiTi rods with a diameter of 150–220 µm. Metallographic, chemical, thermal, and mechanical characterization show behavior under identical manufacturing conditions that ranges from ...
Sandra Herzig, Michael Werner, Christian Rotsch   +2 more
wiley   +1 more source

Demographic patterns of two related desert shrubs with overlapping distributions in response to past climate changes

Frontiers in Plant Science
Numerous studies have revealed that past geological events and climatic fluctuations had profoundly affected the genetic structure and demographic patterns of species.
Qiushi Yu, Qiushi Yu, Qiushi Yu, Jing Hu, Xiaoke Hu, Yongfeng Zhou, Fanglin Wang, Shengxiu Jiang, Yuqi Wang   +8 more
doaj   +1 more source

Linear instability mechanisms for sand wave formation [PDF]

, 2000
A height- and flow-dependent model for turbulent viscosity is employed to explain the generation of sand waves in tidal seas. This new model resolves the problem of excitation of very long waves in sand wave formation, because it leads to damping of the ...
Hulscher, Suzanne J. M. H., Hulscher, Suzanne J.M.H., Komarova, Natalia L.   +2 more
core   +1 more source

Self‐Cleaning Sensor Surfaces for Long‐Term Environmental Monitoring

Advanced Engineering Materials, EarlyView.
Long‐term use of unattended outdoor sensors without soiling or biofouling is achieved through generation of a micro‐ and nanorough cuvette surface by combing hydrophobic nanoparticles with fluorinated polymers, crosslinked and surface‐attached through CHic chemistry. The coating demonstrates self‐cleaning behavior and prolonged outdoor stability, which
Sanam Kumari Rajak, Yasmina Frey, Ulrike Wallrabe, Oswald Prucker, Jürgen Rühe   +4 more
wiley   +1 more source

Booming Sand Dunes [PDF]

, 2010
"Booming" sand dunes are able to produce low-frequency sound that resembles a pure note from a music instrument. The sound has a dominant audible frequency (70-105 Hz) and several higher harmonics and may be heard from far distances away.
Vriend, Nathalie Maria
core   +1 more source

Effects of Mg on Microstructure and Solidification of a Hypereutectic Zn–8 wt.%Al Alloy

Advanced Engineering Materials, EarlyView.
An appreciable set of results involving thermal data, microstructure, chemical composition, and microstructural growth laws is reported for ZnAlMg alloys. Such results demonstrate that ZnAlMg alloys have high potential for applications in automotive self‐lubricating components, batteries, and electrical systems.
Raí B. de Sousa, Jeverton L. Paixão, Daylla S. Silva, Bruno S. Sobral, Mucio D. de Medeiros, José E. Spinelli, Bismarck L. Silva   +6 more
wiley   +1 more source

Design of Screens for Sand Control of Wells [PDF]

Acta Montanistica Slovaca, 2006
Drilling, completion, production, and reservoir engineers, supervisors, foremen, superintendents, service company personnel, technologists and anyone involved with recommending, selecting, designing or on-site performance of well completions or workovers
Ján Pinka, Marina Sidorová
doaj  

Leishmania chitinase facilitates colonization of sand fly vectors and enhances transmission to mice [PDF]

, 2008
Chitinases of trypanosomatid parasites have been proposed to fulfil various roles in their blood-feeding arthropod vectors but so far none have been directly tested using a molecular approach.
Joshi, M. B., Hajmova, M., Hajmová, Martina, Sadlova, Jovana, Volf, Petr, Rogers, Matthew E., Dwyer, D. M., Rogers, Matthew E, Bates, Paul, Sadlova, J., Volf, P., Joshi, Manju B, Dwyer, Dennis M, Bates, Paul A   +13 more
core   +1 more source