搜索结果: 91-105 共查到“理学 reconstruction”相关记录142条 . 查询时间(0.187 秒)
Based on the mutually unbiased measurements, an optimal tomographic scheme for the single-qutrit states and two-qutrit states is presented explicitly. Because the mutually-unbiased-bases based state r...
Primary vertex reconstruction based on the Kalman filter technique at BESⅢ
primary vertex Kalman method BESⅢ
2009/12/24
Primary vertex reconstruction is crucial to estimate the beam profile in collision experiments. We study the principle of an iterative process, called the Kalman filter method, and apply it to primary...
Potential of historical meteorological and hydrological data for the reconstruction of historical flood events–the example of the 1882 flood in southwest Germany
historical meteorological and hydrological data reconstruction historical flood events
2009/12/16
This paper presents a hydrometeorological reconstruction of the flood triggering meteorological situation and the simulation of discharges of the flood event of December 1882 in the Neckar catchment i...
Potential of historical meteorological and hydrological data for the reconstruction of historical flood events – the example of the 1882 flood in southwest Germany
historical meteorological and hydrological data reconstruction historical flood events
2009/12/8
This paper presents a hydrometeorological reconstruction of the flood triggering meteorological situation and the simulation of discharges of the flood event of December 1882 in the Neckar catchment i...
Tree ring-based February–April temperature reconstruction for Changbai Mountain in Northeast China and its implication for East Asian winter monsoon
February–April temperature Northeast China Changbai Mountain winter monsoon
2009/12/3
Long-term climatic records are scarce in the northeast Asia for understanding the behavior of the East Asian Winter Monsoon. Here we describe a 250-year February–April temperature reconstruction (TCBM...
A few prospective ideas on climate reconstruction：from a statistical single proxy approach towards a multi-proxy and dynamical approach
climate reconstruction dynamical approach multi-proxy
2009/12/3
Important progresses have been made in palaeoclimatological studies by using statistical methods. But they are in somewhere limited as they take the present as an absolute reference. This is particula...
Two-dimensional reconstruction of past sea level (1950–2003) from tide gauge data and an Ocean General Circulation Model
past sea level Ocean General Circulation Model Two-dimensional
2009/12/3
A two-dimensional reconstruction of past sea level is proposed at yearly interval over the period 1950–2003 using tide gauge records from 99 selected sites and 44-year long (1960–2003) 2°×2° sea level...
Climate reconstruction from pollen and δ13C records using inverse vegetation modeling – Implication for past and future climates
Climate reconstruction future climates
2009/12/3
An improved inverse vegetation model has been designed to better specify both temperature and precipitation estimates from vegetation descriptions. It is based on the BIOME4 vegetation model and uses...
Assessment of soil n-alkane δD and branched tetraether membrane lipid distributions as tools for paleoelevation reconstruction
soil n-alkane δD paleoelevation reconstruction branched tetraether membrane lipid distributions
2010/1/21
δ18O values of pedogenic minerals forming from soil water are commonly used to reconstruct paleoelevation. To circumvent some of the disadvantages of this method, soil n-alkane δD values were recently...
Grid resolution dependence in the reconstruction of an atmospheric tracer source
Grid resolution dependence reconstruction atmospheric tracer source
2009/11/9
Methods for reconstructing sources of inert atmospheric tracers from ground measurements are currently studied, tested, and even implemented (in accident-type radionuclide release backtracking, for re...
Systematics and dental system reconstruction of the durophagous chondrichthyan Lagarodus JAEKEL,1898
Chondrichthyans Lagarodus Carboniferous Systematics Dental system
2009/10/20
The type species of the Carboniferous chondrichthyan genus Lagarodus JAEKEL, 1898 is changed to Psammodus specularis TRAUTSCHOLD, 1874 because of an identification error in TRAUTSCHOLD (1874). Five mo...
Limb scatter ozone retrieval from 10 to 60 km using a multiplicative algebraic reconstruction technique
Limb scatter ozone multiplicative algebraic reconstruction technique
2009/9/14
The OSIRIS instrument onboard the Odin spacecraft routinely measures vertical profiles of spectrally dispersed, limb scattered sunlight from the upper troposphere into the lower mesosphere. These meas...
J/ψ→μ+μ－ reconstruction in the CMS experiment
CMS J/ψ reconstruction efficiency Level-1 trigger HLT (High Level Trigger)
2009/8/14
In this paper the J/ψ→μ+μ－ reconstruction performance in the CMS experiment at the LHC is studied in detail by using Bs→J/ψ φ→μμKK events. The reconstruction efficiencies of J/ψ mesons and their decay...
Monte Carlo studies of micromegas as a neutron detector and its track reconstruction
simulation neutron detector track reconstruction
2009/8/14
In this paper a two dimensional readout micromegas detector with a polyethylene foil as converter was simulated on GEANT4 toolkit and GARFIELD for fast neutron detection. A new track reconstruction me...
Track reconstruction using the TSF method for the BESⅢ main drift chamber
BESⅢ detector track reconstruction track segment finder conformal transformation secondary vertex
2009/8/13
We describe the algorithm to reconstruct the charged tracks for BESⅢ main drift chamber at BEPCⅡ, including the track finding and fitting. With a new method of the Track Segment Finder (TSF), the resu...