Results 101 to 110 of about 90,850 (290)

Golden‐Ratio–Guided Aperiodic Architected Metamaterials with Simultaneously Enhanced Strength and Toughness

Advanced Functional Materials, EarlyView.
Guided by the golden ratio, a class of aperiodic architected metamaterials is introduced to address the intrinsic trade‐off between strength and toughness. By unifying local geometric heterogeneity with global order, the golden‐ratio‐guided aperiodic architecture promotes spatial delocalization of damage tolerence regions, leading to more tortuous ...
Junjie Deng, Xinxin Wang, Ruochao Zhao, Zhendong Li, Kai Liu, Ke Yuan, Jia An, Xinwei Li, Chee Kai Chua, Zhonggang Wang   +9 more
wiley   +1 more source

An international network to monitor the structure, composition and dynamics of Amazonian forests (RAINFOR) [PDF]

, 2002
The Amazon basin is likely to be increasingly affected by environmental changes: higher temperatures, changes in precipitation, CO2 fertilization and habitat fragmentation.
Almeida, S., Arroyo, L., Baker, T., Frederiksen, T., Grace, J., Higuchi, N., Killeen, T., Laurance, W.F., Leano, C., Lewis, S., Lloyd, J., Malhi, Y., Meir, P., Monteagudo, A., Neill, D., Nunez Vargas, P., Panfil, S.N., Patino, S., Phillips, O.L., Pitman, N., Quesada, C.A., Rudas-Ll, A., Saleska, S., Salomao, R., Silva, N., Silveira, M., Sombroek, W.G., Valencia, R., Vasquez Martinez, R., Vieira, I.C.G., Vinceti, B., Wright, J.   +31 more
core   +1 more source

Grain Boundary Space Charge Engineering of Solid Oxide Electrolytes: Model Thin Film Study

Advanced Functional Materials, EarlyView.
This study demonstrates unprecedented control of grain boundary electrical properties in solid electrolytes. Selective diffusion of cations through grain boundaries in thin films enables 12 orders of magnitude variation in ionic resistance, proving that systematic chemical modification of grain boundary electrical properties is feasible.
Thomas Defferriere, Yong Beom Kim, Colin Gilgenbach, James M. LeBeau, WooChul Jung, Harry L. Tuller   +5 more
wiley   +1 more source

Making ultra-high-yield-strength and high-ductility austenitic stainless steel by grain refinement and regularly arranging Cu-nanoprecipitates

Materials Research Letters
This study achieves an unprecedented combination of ultra-high yield strength (1300 MPa) and high ductility (25%) in austenitic stainless steel (ASS) through grain refinement and innovative Cu microalloying.
Chengyang Hu, Xiangliang Wan, Yongjie Zhang, Rui Ke, Tadashi Furuhara   +4 more
doaj   +1 more source

Seismic Emissions from a Highly Impulsive M6.7 Solar Flare

, 2008
On 10 March 2001 the active region NOAA 9368 produced an unusually impulsive solar flare in close proximity to the solar limb. This flare has previously been studied in great detail, with observations classifying it as a type 1 white-light flare with a ...
A. Kosovichev, A.-C. Donea, A.-C. Donea, A.-C. Donea, A.-C. Donea, C. Lindsey, D. Besliu-Ionescu, H. Moradi, H. Moradi, J. Aboudarham, J. C. Martínez-Oliveros, J.C. Martínez-Oliveros, J.J. Sudol, J.P. Li, M. Aschwanden, M.D. Ding, M.E. Machado, R. Chandra, S.P. Rajaguru, V.V. Zharkova, V.V. Zharkova, V.V. Zharkova, W. Uddin, Y. Liu   +23 more
core   +3 more sources

Solvent‐Free Bonding Mechanisms and Microstructure Engineering in Dry Electrode Technology for Lithium‐Ion Batteries

Advanced Functional Materials, EarlyView.
Dry electrode technology revolutionizes battery manufacturing by eliminating toxic solvents and energy‐intensive drying. This work details two promising techniques: dry spray deposition and polymer fibrillation. How their unique solvent‐free bonding mechanisms create uniform microstructures for thicker, denser electrodes, boosting energy density and ...
Yuhao Liang, Hao Long, Zimo Huang, Ting He, Xueming Chen, Meng Li, Hao Chen, Shanqing Zhang   +7 more
wiley   +1 more source

Molecular Cross‐Linking of MXenes: Tunable Interfaces and Chemiresistive Sensing

Advanced Functional Materials, EarlyView.
In this study, Ti3C2Tx MXenes are initially functionalized using oleylamine ligands to form stable dispersions in an organic solvent. Subsequently ligand exchange with α,ω‐diaminoalkanes enables cross‐linking, along with precise tuning of interfaces. This structural control translates into tunable charge transport and responsive VOC sensing, showing ...
Yudhajit Bhattacharjee, Lukas Mielke, Mahmoud Al‐Hussein, Shivam Singh, Karen Schaefer, Borja Rodriguez‐Barea, Qiong Li, Anik Kumar Ghosh, Artur Erbe, Carmen Herrmann, Yana Vaynzof, Andreas Fery, Hendrik Schlicke   +12 more
wiley   +1 more source

RADIOSOUNDING-DERIVED CONVECTIVE PARAMETERS FOR THE ALCÂNTARA LAUNCH CENTER. doi: 10.5028/jatm.2009.0102211216

Journal of Aerospace Technology and Management, 2011
Climatological features of convective parameters (K index, IK; 950 hPa K index, IK950; Showalter index, IS; lifted index, ILEV; total totals index, ITT; and convective available potential energy, CAPE) derived from 12 UTC radiosounding data collected at ...
Fernando Pereira de Oliveira, Marcos Daisuke Oyama   +1 more
doaj  

Light emission from silicon with tin-containing nanocrystals

, 2015
Tin-containing nanocrystals, embedded in silicon, have been fabricated by growing an epitaxial layer of Si_{1-x-y}Sn_{x}C_{y}, where x = 1.6 % and y = 0.04 %, followed by annealing at various temperatures ranging from 650 to 900 degrees C.
Balling, Peter, Chevallier, Jacques, Gaiduk, Peter I., Hansen, John Lundsgaard, Jensen, Pia Bomholt, Julsgaard, Brian, Larsen, Arne Nylandsted, Roesgaard, Søren, Svane, Axel   +8 more
core   +2 more sources

The effect of thermal cycling on the high-temperature creep behaviour of a single crystal nickel-based superalloy [PDF]

, 2007
Isothermal and thermal cycling creep behaviours of a single crystal nickel-based superalloy have been studied by means of tensile tests at 1150 °C and 80 MPa.
Andrieu, Eric, Crabos, Fabrice, Monceau, Daniel, Raffaitin, Aymeric   +3 more
core   +2 more sources