نتایج جستجو برای: 1d

تعداد نتایج: 21549  

2017
Caroline Girard Nathalie Raveu Stéphane Lanteri Ronan Perrussel R. Perrussel

An hybridization between two numerical methods, the 1d Wave Concept Iterative Procedure (WCIP) and the 2d Finite Element Method (FEM), is developed. Using two examples, comparisons are provided between the new hybrid method and an analytic solution, when available, or the WCIP alone.

Journal: :Particle & particle systems characterization : measurement and description of particle properties and behavior in powders and other disperse systems 2017
Ruixuan Gao Ishan Gupta Edward S Boyden

A simple strategy for making nanoparticles by sonofragmentation of high-aspect-ratio 1D substrates is introduced. With common laboratory equipment, ultra-thin nanowires are fragmented into nanoparticles of size determined by the nanowire width, resulting within hours in monodisperse, crystalline nanoparticles of < 10 nm. This strategy is applicable to a diversity of semiconductor, oxide and met...

2005
Amy Briggs Yunpeng Li Daniel Scharstein

This paper presents a new method for feature matching between pairs of one-dimensional panoramic images for use in navigation and localization by a mobile robot equipped with an omnidirectional camera. We extract locally scaleinvariant feature points from the scale space of such images, and collect color information and shape properties of the scale-space surface in a feature descriptor. We def...

2011
Torsten J. Gellert Felix G. König

Systems of rail-mounted vehicles play a key role in many logistics applications, and the efficiency of their operation frequently has a significant impact on the overall performance of the surrounding production environment. In theory, assigning transport requests to the vehicles of such systems and scheduling their execution amounts to finding k tours on a common line, where tours may never cr...

2016
Rajendra C. Pawar Suhee Kang Jung Hyun Park Jong-ho Kim Sunghoon Ahn Caroline S. Lee

A one-dimensional (1D) nanostructure having a porous network is an exceptional photocatalytic material to generate hydrogen (H2) and decontaminate wastewater using solar energy. In this report, we synthesized nanoporous 1D microrods of graphitic carbon nitride (g-C3N4) via a facile and template-free chemical approach at room temperature. The use of concentrated acids induced etching and lift-of...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2005
Wei Lu Jie Xiang Brian P Timko Yue Wu Charles M Lieber

Two-dimensional electron and hole gas systems, enabled through band structure design and epitaxial growth on planar substrates, have served as key platforms for fundamental condensed matter research and high-performance devices. The analogous development of one-dimensional (1D) electron or hole gas systems through controlled growth on 1D nanostructure substrates, which could open up opportuniti...

Journal: :Applied and environmental microbiology 1980
J G Kingma M Silver

Iron-oxidizing thiobacilli were adapted to grow on a chalcopyrite and a galena ore concentrate. When grown on the chalcopyrite concentrate, the bacteria exhibited a doubling time of 38.4 +/- 2.9 h, with a final cellular protein concentration of 185 mug/ml and solubilization of 10.3 g of copper per liter. When grown on the galena ore concentrate, the generation time was 39.6 +/- 2.7 h, with a fi...

Journal: :Physical review letters 1994
Lässig

One-dimensional massive quantum particles (or 1 + 1-dimensional random walks) with short-ranged multi-particle interactions are studied by exact renormalization group methods. With repulsive pair forces, such particles are known to scale as free fermions. With finite m-body forces (m = 3, 4, . . .), a critical instability is found, indicating the transition to a fermionic bound state. These unb...

Journal: :Chemical communications 2009
Tomislav Friscić Leonard R Macgillivray

We use a cocrystal with components arranged in a 1D hydrogen-bonded chain as a pseudoseed to template the components of a cocrystal that otherwise forms a photoactive 0D assembly to form a photostable 1D chain structure.

2011
Hiroaki SATO Hiroaki YAMANAKA

The site response transfer functions using 1D layered velocity models based on microtremor array exploration in the Niigata area, Japan, were examined whether it would be possible to explain the estimated high-frequency site responses using observed earthquake records or not. Our results showed the site response transfer functions were relatively larger in the frequency over about 3 or 6 Hz tha...

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