Results 71 to 80 of about 262,791 (308)

Middle Archaic Complex of Northwest Arkansas [PDF]

, 1969
After the end of the Wisconsin glacial there occurred an interval called the Neothermal in the southwestern portion of the United States. The Neothermal is comprised of three consecutive tempera-ture intervals: the Anathermal, Altithermal, and ...
Beckman, Michael A.
core   +2 more sources

Unidirectional Tape‐Based Composites from Hemp and Pineapple Leaf Fiber: Mechanical Performance in Conventional and Bio‐Based Matrices

Advanced Engineering Materials, EarlyView.
The study investigates novel semi‐finished products made of unidirectionally arranged hemp or pineapple leaf fiber‐reinforced composites produced from different matrices. The materials are analyzed in terms of their mechanical and interfacial properties and void content.
Nina Graupner, Raja Bade, Valentin Ackermann, Roja M. Baumann, Corvin Bischoff, Jona F. Ebeling, Oskar Glenz, Marlo Groh, Jonathan Groth, Finja Hiller, Tom Hirschmüller, Felix Menke, Syntcha Ngantchou Lecdou, Mika Ohler, Daniel Rafii Vardiny, Darius Richter, Dario Röper, Henrik Schumacher, Theresa Stein, Benjamin Vorbeck, Elisabeth Wermter, Kay Kölzig, Jörg Müssig   +22 more
wiley   +1 more source

Web-services, the leverage in query and bulk download of big climate geospatial data. Case of study: The Chihuahuan Desert

Climate Services
The Chihuahuan Desert is a distinctive and ecologically diverse region that is particularly susceptible to climate change. To effectively characterize the ecosystem services in this area, access to extensive geospatial data is crucial.
Victor M Rodríguez-Moreno, Aldo Rafael Martínez-Sifuentes, Juan Estrada-Ávalos, Pedro Félix-Valencia, Ramón Trucíos-Caciano, César Valenzuela-Solano   +5 more
doaj   +1 more source

Reviewing the International Year of Deserts and Desertification 2006: What contribution towards combating global desertification and implementing the united nations convention to combat desertification? [PDF]

, 2008
During the United Nations General Assembly's 58th Ordinary Session in 2003, a decision was adopted declaring 2006 the International Year of Deserts and Desertification (IYDD). This paper critically reviews this International Year.
Barraclough, Batterbury, Berkes, Blaikie, Bruyninckx, Bruyninckx, Chasek, Davis, Fomerand, Forsyth, Glantz, Grainger, Haas, Hannam, Jordan, L.C. Stringer, Long, Najam, Najam, Najam, Pahl-Wostl, Poulsen, Requier-Desjardins, Rhodes, Rosenov, Rowe, Seely, Seely, Seyfang, Stringer, Thomas, Thomas, Toulmin, Warren, Way, Young   +35 more
core   +1 more source

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

Advanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller, Florian Kerber, Kirsten Moritz, Steffen Dudczig, Konstantin Kraushaar, Thomas Schemmel, Jana Hubálková, Patrick Gehre, Christos G. Aneziris   +8 more
wiley   +1 more source

Dating climatic change in hot deserts using desert varnish on meteorite finds [PDF]

Earth and Planetary Science Letters, 2003
A thin coating of desert varnish occurs on Forrest 009 and Nurina 004, both equilibrated ordinary chondrite (L6) finds from the Nullarbor Plain, Australia. This finely laminated deposit is chemically and petrographically comparable to the varnish found on terrestrial rocks.
Lee, M.R., Bland, P.A.
openaire   +1 more source

The spatial variation of Asian dust and marine aerosol contributions to glaciochemical signals in central Asia [PDF]

, 1992
Short-term (6 months to 17 years) glaciochemical records have been collected from several glacier basins in the mountains of central Asia. The spatial distribution of snow chemistry in central Asia is controlled by the influx of dust from the large ...
Mayewski, Paul A, Wake, Cameron P
core   +1 more source

Climate and Land Degradation [PDF]

, 2005
On the occasion of the Seventh session of the Conference of Parties, The World Meteorological Organization (WMO) has prepared this brochure which explains the role of different climatic factors in land degradation and WMO's contribution in addressing ...

core   +1 more source

Development of Sustainable MgO–C Refractories Using MgO–C Recyclates and a Novel Eco‐Friendly Fructose–Tannin Binder Crosslinked With Citric Acid

Advanced Engineering Materials, EarlyView.
This study develops sustainable MgO–C refractories using recycled materials and eco‐friendly fructose–tannin binders. The enhanced performance of citric acid as a cross‐linker and functional additives on mechanical and thermomechanical properties was examined. Characterization included strength tests, immersion trials, and microstructural and inclusion
Dinesh K. Gunasekar, Jana Hubálková, Steffen Dudczig, Gert Schmidt, Florian Kerber, Thomas Schemmel, Patrick Gehre, Christos G. Aneziris   +7 more
wiley   +1 more source

Estimation of mineral dust direct radiative forcing at the European Aerosol Research Lidar NETwork site of Lecce, Italy, during the ChArMEx/ADRIMED summer 2013 campaign: Impact of radiative transfer model spectral resolutions [PDF]

, 2016
© 2016. American Geophysical UnionA field campaign took place in the western and central Mediterranean basin on June–July 2013 in the framework of the ChArMEx (Chemistry-Aerosol Mediterranean Experiment, http://charmex.lsce.ipsl.fr/)/ADRIMED (Aerosol ...
Barragán Cuesta, Rubén, Burlizzi, Pasquale, Comerón Tejero, Adolfo, Perrone, Maria-Rita, Salvatore, Romano, Sicard, Michaël   +5 more
core   +2 more sources