Results 91 to 100 of about 330,864 (284)

Diversity analysis of panicle traits in Chinese prickly ash germplasm resources and their influence on its systematic classification

Scientific Reports
This study aimed to reveal the diversity and variation in panicle traits of the Chinese prickly ash and clarify their influence on the its systematic classification to provide a theoretical basis and technical support for the efficient utilization of ...
Xixi Dong, Lin Shi, Shuqin Bao, Hao Fu, Yuming You, Xiaoying Li, Yun Ren, Qiang Li, Zexiong Chen   +8 more
doaj   +1 more source

Jamming transition in a two-dimensional open granular pile with rolling resistance

, 2014
We present a molecular dynamics study of the jamming/unjamming transition in two-dimensional granular piles with open boundaries. The grains are modeled by viscoelastic forces, Coulomb friction and resistance to rolling.
Atman, Allbens P. F., Combe, Gaël, Magalhães, Caio F. M., Moreira, José G.   +3 more
core   +4 more sources

Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales

Advanced Engineering Materials, EarlyView.
Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik, Alexander Jelinek, Markus Alfreider, Jutta Luksch, Anton Hohenwarter, Florian Schaefer, Christian Motz, Daniel Kiener   +7 more
wiley   +1 more source

Comparison of Short-grain Rice Cultivars Grown in Japan and the United States [PDF]

, 2018
Although short-grain rice accounts for less than 2% of U.S. rice production, the demand for short-grain rice is expected to increase because of the increasing popularity of sushi and sake. The objective of this study was to compare the physical, chemical
Nishiwaki, Michiyo
core   +2 more sources

Annealing effect on grain boundary width of polycrystalline silicon for photovoltaic application

Journal of Renewable Energies, 2018
Nowadays, LPCVD (Low Pressure Chemical Vapor Deposition) and highly doped polycrystalline silicon films have numerous applications in microelectronic component manufacturing technologies, integrated circuits and solar cells. The complexity of the circuits, and the increasing degree of integration of the components, constantly require improvement and ...
B. Zaidi, B. Hadjoudja, S. Belghit, B. Chouial, M. Mekhalfa   +4 more
openaire   +2 more sources

Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

Advanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad, Aleksander Kostka, Gowtham Arivanandhan, Yujiao Li, Alan Savan, Manfred Kohl, Alfred Ludwig   +6 more
wiley   +1 more source

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

Advanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang, Aparajita Pramanik, Sandipan Sen, Shubhashis Dixit, Marcel Muench, R. J. Vikram, Daniel Schliephake, Yolita M. Eggeler, Ankur Chauhan, Martin Heilmaier, Alexander Kauffmann   +10 more
wiley   +1 more source

Observing dust settling and coagulation in circumstellar discs: Selected constraints from high resolution imaging

, 2010
Circumstellar discs are expected to be the nursery of planets. Grain growth within such discs is the first step in the planet formation process in the core-accretion gas-capture scenario.
Beckwith, Bjorkman, Blum, Boss, Brauer, Brown, Cuzzi, Draine, Draine, Duchêne, Dullemond, Dullemond, D’Alessio, Garaud, Guilloteau, Gullbring, Güttler, J. Sauter, Kamp, Kemper, Kessler-Silacci, Kim, Lada, Langkowski, Lucy, Mathis, McCabe, Meeus, Mie, Neuhäuser, Ormel, Ossenkopf, Pinte, Przygodda, Robitaille, S. Wolf, Sauter, Schegerer, Schegerer, Shakura, Sicilia-Aguilar, Sicilia-Aguilar, Simon, Stapelfeldt, Stapelfeldt, Thamm, Weidenschilling, Weidling, Weingartner, Wilking, Witt, Wolf, Wolf, Wolf, Wood   +54 more
core   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

Inter-grain tunneling in the half-metallic double-perovskites Sr$_2$BB'O$_6$ (BB'-- FeMo, FeRe, CrMo, CrW, CrRe

, 2013
The zero-field conductivities ($\sigma$) of the polycrystaline title materials, are governed by inter-grain transport. In the majority of cases their $\sigma$(T) can be described by the "fluctuation induced tunneling" model.
Chashka, K. B., Fisher, B., Genossar, J., Patlagan, L., Reisner, G. M.   +4 more
core   +1 more source