Results 101 to 110 of about 4,019 (310)

Stable Isotope Investigations of Icicle Formation and Evolution

Hydrology
Icicles are elongated structures formed from water flowing over hangings and crystallizing in sub-freezing conditions. These features are ubiquitous in several parts of the world that experience severe to moderate winter seasons.
Thomas Brubaker, R. V. Krishnamurthy
doaj   +1 more source

Vertical Distribution of Lead and Mercury in the Wetland Argialbolls of the Sanjiang Plain in Northeastern China.

PLoS ONE, 2015
The wetland Argialbolls pedon was chosen to investigate the effects of pedogenic processes and anthropogenic activities on the vertical distribution of lead and mercury concentration and to assess the potential use of soil as an archive of atmospheric Pb
Chunye Lin, Peizhong Li, Hongguang Cheng, Wei Ouyang   +3 more
doaj   +1 more source

Natural Bone‐Derived Ceramic Scaffolds Functionalized with Chitosan‐Gold, Chitosan‐Magnesium, and Chitosan‐Zinc for Enhanced Antibacterial Activity

Advanced Engineering Materials, EarlyView.
This study reports the development of antibacterial ceramic scaffolds derived from natural bovine bone. The bones were processed through sequential boiling and hydrogen peroxide treatment to remove organic matter, producing porous, mineral‐rich scaffolds.
Mohamad Hassan Taherian, Anh Thi Le, Anh Thi Van Le, Dung My Thi Dang, Tin Chanh Duc Doan, Chien Mau Dang, Martin Bolduc   +6 more
wiley   +1 more source

Encyclopedia of 2D β′‐In2Se3 Growth Using Chemical Vapor Deposition: The Effects of Synthesis Parameters Onto Material Quality

Advanced Engineering Materials, EarlyView.
A distinct semi‐confined inner‐tube chemical vapor deposition geometry enables reproducible, large‐area growth of phase‐pure 2D β′‐In2Se3 from InI + Se precursors. Engineering local vapor transport and optimizing precursor delivery and temperature–time conditions yield uniform continuous films.
Dasun P. W. Guruge, P. Sanju S. Panawala, Joseph F. S. Fernando, Zhenhuan Chen, Chao Zhang, Dong‐Chen Qi, Liangzhi Kou, Konstantin L. Firestein, Dmitri V. Golberg   +8 more
wiley   +1 more source

Microbial iron cycling illuminates the biological contribution and potential climate drivers of deep-sea rare earth element enrichment

Communications Earth & Environment
Deep-sea sediments enriched in rare earth elements represent important potential resources and paleoceanographic archives. The transfer of these elements from marine particles (e.g., Fe-Mn (oxyhydr)oxides or organic matter) to phosphate phases is ...
Pengcong Wang, Deng Liu, Peyman Babakhani, Mingyu Zhao, Yangtao Zhu, Jiayi Ma, Ganglan Zhang, Chutong Liu, Jun Cao, Fang Chen, Xiaoqiang Yang, Yinan Deng   +11 more
doaj   +1 more source

Sediment microstructures of ODP Leg 105 holes [PDF]

, 1989
Possible genetic relationships between syn- and post-depositional processes and sediment microstructure were investigated. Samples from cores at Sites 646 and 647 of Ocean Drilling Program (ODP) Leg 105 included examples of bottom current deposition ...
Kathleen A Dadey (6968072), Dadey, Kathleen A   +1 more
core   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

Advanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi, Hadi Moutablaleh, Ignatius A. Setiawan, Mehrshad Mehrpouya   +3 more
wiley   +1 more source

Post processing for Fused Deposition Modeling Parts with Acetone Vapour Bath

IFAC-PapersOnLine, 2016
Abstract: Additive Manufacturing (AM) has the benefit being capable to create very complex geometries, which could be impossible with traditional methods or fabricated at high cost. However, the manufacturing cost of AM is not directly related to the parts complexity. From material costs perspective, the cost of AM parts is mostly related to the size
Amirali Lalehpour, Ahmad Barari
openaire   +1 more source

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

Advanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev, Noah‐Lean Roschlaub, Anne Jung   +2 more
wiley   +1 more source

Post-depositional modification on seasonal-to-interannual timescales alters the deuterium-excess signals in summer snow layers in Greenland [PDF]

<jats:p>Abstract. We document the isotopic evolution of near-surface snow at the East Greenland Ice Core Project (EastGRIP) ice core site in northeast Greenland using a time-resolved array of 1 m deep isotope (δ18O, δD) profiles.
H. C. Steen-Larsen, town, michael, S. Wahl, A. Sveinbjornsdottir, Town, Michael S., Steen-Larsen, Hans Christian, Wahl, Sonja, Town, Michael S, M. S. Town, Faber, Anne-Katrine, Jones, Tyler R, A.-K. Faber, M. Behrens, T. R. Jones, Jones, Tyler R., Behrens, Melanie, Town, Michel Stephen, JONES, TYLER, Sveinbjornsdottir, Arny   +18 more
core   +1 more source