搜索结果: 1-15 共查到“理学 calculation”相关记录176条 . 查询时间(0.109 秒)
eDNA effective in the calculation of marine biodiversity
eDNA marine biodiversity kelp forest
2021/8/11
For almost 20 years, researchers have conducted detailed censuses of the majestic kelp forests off Santa Barbara. By counting fish species and placing them in the context of their environmental condit...
METRIC SCALE CALCULATION FOR VISUAL MAPPING ALGORITHMS
Visual SLAM Point Cloud Pose Estimation Scale Calculation Object Detection
2018/6/4
Visual SLAM algorithms allow localizing the camera by mapping its environment by a point cloud based on visual cues. To obtain the camera locations in a metric coordinate system, the metric scale of t...
Adaptive local basis set for Kohn–Sham density functional theory in a discontinuous Galerkin framework I: Total energy calculation
Electronic structure Kohn–Sham density functional theory Discontinuous Galerkin Adaptive local basis set Enrichment functions Eigenvalue problem
2015/7/14
Kohn–Sham density functional theory is one of the most widely used electronic structure theories. In the pseudopotential framework, uniform discretization of the Kohn–Sham Hamiltonian generally result...
The Material Culture of Calculation. A Conceptual Framework for an Historical Epistemology of the Concept of Number
Material Culture of Calculation Conceptual Framework Concept of Number
2015/3/27
The Material Culture of Calculation. A Conceptual Framework for an Historical Epistemology of the Concept of Number.
Pangolin v1.0, a conservative 2-D advection model towards large-scale parallel calculation
large-scale parallel calculation Pangolin v1.0
2015/3/5
To exploit the possibilities of parallel computers, we designed a large-scale bidimensional atmospheric
advection model named Pangolin.
Calculation of a weak nonleptonic matrix element using “Weinberg” sum rules
Weak matrix element vector and axis vector spectrum function spectral function
2014/12/23
There is a ``toy'' weak matrix element which can be expressed as an integral over the vector and axial vector spectral functions, $\rho_V (s) - \rho_A (s)$. I review our recent evaluation of these spe...
Dispersive calculation of B-7((3/2)) and B-8((3/2)) in the chiral limit
Isospin vector the current spectrum function the dispersion analysis vacuum polarization spectral function
2014/12/22
We show how the isospin vector and axialvector current spectral functions V,3 and A,3 can be used to determine in leading chiral order the low energy constants B(3/2) 7 and B(3/2) 8 . This is accomp...
Scheme for calculation of multi-layer cloudiness and precipitation for climate models of intermediate complexity
multi-layer cloudiness precipitation for climate models intermediate complexity
2014/12/12
In this study we present a scheme for calculating the characteristics of multi-layer cloudiness and precipitation for Earth system models of intermediate complexity (EMICs). This scheme considers thre...
The application of the Modified Band Approach for the calculation of on-line photodissociation rate constants in TM5: implications for oxidative capacity
Modifi ed Band Approach on-line photodissociation rate
2014/12/11
A flexible and explicit on-line parameterization for the calculation of tropospheric photodissociation rate constants (J -values) has been integrated into the
global Chemistry Transport Model T...
Supersaturation calculation in large eddy simulation models for prediction of the droplet number concentration
Supersaturation calculation large eddy simulation models droplet number concentration
2014/12/10
A new parameterization scheme is described for calculation of supersaturation in LES models that specifically aims at the simulation of cloud condensation nuclei (CCN) activation and prediction of the...
Calculation of Constitutive Parameters from Electric and Magnetic Field Measurements in an Anisotropic Medium with a Triaxial Instrument
Electrical Anisotropy Triaxial Measurement Electric and Magnetic Dipoles
2013/3/11
A hypothetical electric and magnetic induction tensor is considered in an anisotropic medium. The sources are magnetic dipoles. In such a medium, constitute parameters can be calculated by combining e...
Calculation of Some Expected Values for Parameterized Mean Model with Gaussian Noise
Calculation Expected Values Parameterized Mean Model Gaussian Noise
2012/11/23
This document derives several expected values related to the parameterized mean model with Gaussian noise and their simplified forms.
Ab initio calculation of ideal strength and phonon instability of graphene in tension
strength phonon instability graphene
2012/8/8
Graphene-based sp2-carbon nanostructures such as carbon nanotubes and nanofibers can fail
near their ideal strengths due to their exceedingly small dimensions. We have calculated the
phonon spectra ...
Calculation of Residual Dose Around Small Objects Using Mu2e Target as an Example
Accelerator Physics Residual Dose Mu2e Target
2012/5/17
The MARS15 code provides contact residual dose rates for relatively large accelerator and experimental components for predefined irradiation and cooling times. The dose rate at particular distances fr...
Predicting Fixation Tendencies of the H3N2 Influenza Virus by Free Energy Calculation
Fixation Tendencies of the H3N2 Influenza Virus Free Energy Calculation Biomolecules
2012/5/2
Influenza virus evolves to escape from immune system antibodies that bind to it. We used free energy calculations with Einstein crystals as reference states to calculate the difference of antibody bin...