搜索结果: 1-15 共查到“理学 GAPS”相关记录27条 . 查询时间(0.082 秒)
Gaps in the cloud cover? Comparing extinction measures in spiral disks
dust in galaxies spiral galaxies
2014/12/23
Dust in galaxies can be mapped either by the FIR/submillimeter emission, the optical or infrared reddening of starlight, or the extinction of a known background source. We compare two dust extinction ...
Research will fill in biodiversity knowledge gaps results applicable to health, agriculture, energy and manufacturing（图）
biodiversity knowledge gaps manufacturing
2014/9/12
Tropical deforestation has dramatic effects on biodiversity--and on the functioning of entire ecosystems.Scientist Jorge Rodrigues of the University of California, Davis is investigating how microbial...
Gaps in Protoplanetary Disks as Signatures of Planets: I. Methodology and Validation
planet disk interactions protoplanetary disks planets and satellites detection radiative
2012/2/23
We examine the observational consequences of partial gaps being opened by planets in protoplanetary disks. We model the disk using a static alpha-disk model with detailed radiative transfer, parametri...
A method for filling gaps in solar irradiance and in solar proxy data
filling gaps solar irradiance solar proxy data
2011/8/17
Abstract: Data gaps are ubiquitous in spectral irradiance data, and yet, little effort has been put into finding robust methods for filling them. We introduce a data-adaptive and nonparametric method ...
A method for filling gaps in solar irradiance and in solar proxy data
method filling gaps solar irradiance solar proxy
2011/10/13
Data gaps are ubiquitous in spectral irradiance data, and yet, little effort has been put into finding robust methods for filling them. We introduce a data-adaptive and nonparametric method that allow...
The distribution of gaps for saddle connection directions
distribution of gaps saddle connection directions
2011/2/23
Motivated by the study of billiards in polygons, we prove fine results for the distribution of gaps of directions of saddle connections on translation surfaces.
The Orlov spectrum is a new invariant of a triangulated category. It was intro-duced by D. Orlov building on work of A. Bondal-M. van den Bergh and R. Rouquier. The supremum of the Orlov spectrum of a...
We identify the finite list of minimal analytic n-gaps which are not weakly countably separated, and we prove that every analytic n-gap which is not countably separated contains a gap from our finite ...
Shape resonance for the anisotropic superconducting gaps near a Lifshitz transition: the effect of electron hopping between layers
Shape resonance anisotropic superconducting gaps effect of electron
2010/11/24
The multigap superconductivity modulated by quantum confinement effects in a superlattice of
quantum wells is presented. Our theoretical BCS approach captures the low-energy physics of a
shape reson...
Complexified cones. Spectral gaps and variational principles
Complexified cones. Spectral gaps variational principles
2010/11/24
We consider contractions of complexified real cones, as recently introduced by Rugh in [Rugh10]. Dubois [Dub09] gave optimal conditions to determine if a matrix contracts a canonical complex cone. Fir...
The superconducting gaps in LiFeAs: Joint study of specific heat and ARPES
superconducting gaps LiFeAs specific heat ARPES
2010/11/24
We present speci c heat, cP , and ARPES data on single crystals of the stoichiometric super-
conductor LiFeAs. A pronounced anomaly is found in cP at the superconducting transition. The
electronic c...
Tunable band gaps in bilayer graphene-BN heterostructures
Tunable band gaps bilayer graphene-BN heterostructures
2010/11/19
We investigate band-gap tuning of bilayer graphene between hexagonal boron nitride sheets,
by external electric elds. Using density functional theory, we show that the gap is continuously tunable fr...
Energy gaps in graphene nano-constrictions with different aspect ratios
Energy gaps graphene nano-constrictions different aspect ratios
2010/11/19
We present electron transport measurements on lithographically defined and etched graphene
nano-constrictions with different aspect ratios, including different length (l) and width (w). A roughly len...
Tunable Vibrational Band Gaps in One-Dimensional Diatomic Granular Crystals with Three-Particle Unit Cells
Tunable Vibrational Band Gaps One-Dimensional Diatomic Granular Three-Particle Unit Cells
2010/11/18
We investigate the tunable vibration filtering properties of one-dimensional diatomic granular crystals composed of arrays of stainless steel spheres and cylinders interacting via Hertzian contact. Th...
Coexistence of pairing gaps in three-component Fermi gases
Coexistence of pairing gaps three-component Fermi gases
2010/11/25
We study a three-component superfluid Fermi gas in a spherically symmetric harmonic trap using the Bogoliubov-deGennes method. We predict a coexistence phase in which two pairing field order parameter...