Results 291 to 300 of about 26,153,681 (361)

Phase Control in Monometallic and Alloy Nanomaterials.

Chemical Reviews
Metal nanomaterials with unconventional phases have been recently developed with a variety of methods and exhibit novel and attractive properties such as high activities for various catalytic reactions and magnetic properties.
K. Kusada, Hiroshi Kitagawa
semanticscholar   +1 more source

High-Transmission Ultrathin Huygens’ Metasurface with 360° Phase Control by Using Double-Layer Transmitarray Elements

Physical Review Applied, 2019
Metasurfaces (two-dimensional metamaterials) have attracted much attention in recent years. However, due to the symmetric design of its cascaded elements, a traditional transmission-type metasurface must be at least three layers thick to achieve high ...
L. Wu, H. Ma, Y. Gou, R. Wu, Z. Wang, Meng Wang, Xinxin Gao, T. Cui   +7 more
semanticscholar   +1 more source

Condensed-phase control? Or gas-phase control?

Combustion, Explosion, and Shock Waves, 2007
Publishing the discussion of two famous researchers in the field of solid propellant combustion, the Editorial Board has to mention that the issues discussed have a long story. The ideas on the leading role of solid-phase reactions in combustion of double-base and composite propellants were formulated by P. F.
openaire   +1 more source

A Low-Loss Passive D-Band Phase Shifter for Calibration-Free, Precise Phase Control

IEEE Journal of Solid-State Circuits
A low-loss passive phase shifter is presented for calibration-free, precise phase control at $D$ -band. The proposed topology manipulates time delay by controlling propagation distance in a trombone-like structure formed with two parallel transmission ...
M. Abbasi, Wooram Lee
semanticscholar   +1 more source

Strategies on Phase Control in Transition Metal Dichalcogenides

Advanced Functional Materials, 2018
Transition metal dichalcogenides (TMDs) consist of dozens of ultrathin layered materials that have significantly different properties due to their varied phases, which determine the properties and application range of TMDs.
Renyan Wang, Yiwei Yu, Shasha Zhou, Huiqiao Li, Hoilun Wong, Zhengtang Luo, Lin Gan, T. Zhai   +7 more
semanticscholar   +1 more source

Phase- and composition-controlled synthesis

Nature Materials, 2022
A general method by controlling reaction kinetics is proposed to synthesize 67 kinds of two-dimensional crystal with custom-made phases and compositions, in particular, Fe- and Cr-based (layered and non-layered) chalcogenides and phosphorous chalcogenides, which show interesting ferromagnetism and superconductivity properties.
Weiguang Yang, Jieun Yang, Hyeon Suk Shin   +2 more
openaire   +3 more sources

Direct-current triboelectric nanogenerator via water electrification and phase control

Nano Energy, 2018
The recent reputational excellence of triboelectric nanogenerators is based on the idea that they have overcome many limitations for traditional energy harvesting methods.
Taehun Kim, Dae Yun Kim, Junseo Yun, Banseok Kim, S. Lee, Dongseob Kim, Sangmin Lee   +6 more
semanticscholar   +1 more source

Phase plane control of a humanoid

Humanoids 2008 - 8th IEEE-RAS International Conference on Humanoid Robots, 2008
This paper proposes ankle torque and foot placement control methods in the coronal plane (frontal or roll) for a humanoid robot. It is an important problem to control the posture of a humanoid robot in the coronal plane during walking. When the humanoid robot walks, the phase portrait of the pelvis position in the coronal makes an elliptical shape.
Dongil Choi, Christopher G. Atkeson, Sung Ju Cho, Jung-Yup Kim   +3 more
openaire   +1 more source

Quantum Phase Control of Entanglement

Physical Review Letters, 2004
A method of phase control of entanglement in two-qubit systems is proposed. We show that by changing a relative phase of the pulses that drive the transitions in a two-qubit system with closed-loop couplings, one can control entanglement at will. The method relies on adiabatic dynamics via time-delayed pulse sequences and can be implemented with both ...
Vladimir S, Malinovsky, Ignacio R, Sola
openaire   +2 more sources

On controlled sinusoidal phase coupling

2009 American Control Conference, 2009
The work in this paper considers a heterogeneous coordinated phase control problem in which most agents follow a classic sinusoidal coupling protocol, but a select few agents act as leaders. These leaders have the ability to report some value other than their current phase to their neighbors.
Daniel J. Klein, Emmett Lalish, Kristi A. Morgansen   +2 more
openaire   +1 more source