搜索结果: 1-15 共查到“理学 reverse”相关记录42条 . 查询时间(0.116 秒)
New poo, new you? Fecal transplants reverse signs of brain aging in mice
fecal transplant brain aging health
2021/8/10
As you age, your brain slows down. You may forget where you left your glasses or have trouble picking up a new skill. Now there’s hope from rodent experiments that some of these declines could be reve...
Collapse of Northern California kelp forests will be hard to reverse（图）
Collapse Northern California kelp forests hard to reverse
2021/3/19
Satellite imagery shows that the area covered by kelp forests off the coast of Northern California has dropped by more than 95%, with just a few small, isolated patches of the bull kelp remaining. Spe...
Imagine standing in a lumberyard and being asked to build a house -- without blueprints or instructions of any kind. The materials are all in front of you, but that doesn't mean you have the first ide...
3D RECONSTRUCTION-REVERSE ENGINEERING – DIGITAL FABRICATION OF THE EGYPTIAN PALERMO STONE USING BY SMARTPHONE AND LIGHT STRUCTURED SCANNER
Cultural Heritage Structured Light Scanning Smartphone 3D modeling 3D sculpting Digital Fabrication
2018/6/4
This paper presents a pipeline that has been developed to acquire a shape with particular features both under the geometric and radiometric aspects. In fact, the challenge was to build a 3D model of t...
Reverse degree distance of unicyclic graphs
Degree Distance Reverse degree distance Diameter Unicyclic graph Pendant vertices Maximum degree
2011/9/1
Abstract: The reverse degree distance is a connected graph invariant closely related to the degree distance proposed in mathematical chemistry. We determine the unicyclic graphs of given girth, number...
Optimal control of reverse logistics model with logistic demand and return rates
Optimal control reverse logistics model logistic demand return rates
2010/9/27
Pontryagin minimum principle (PMP) is applied in this paper to find the optimal control of the reverse logistics model of a production inventory system with deteriorating items. The total cost of the ...
Linearized inverse scattering based on seismic Reverse Time Migration
Linearized inverse seismic Reverse Time Migration
2011/2/23
In this paper we study the linearized inverse problem associated with imaging of re ection seismic data.
Reverse Test and Characterization of Quantum Relative Entropy
Reverse Test Characterization Quantum Relative Entropy
2010/10/29
The aim of the present paper is to give axiomatic characterization of quantum relative entropy utilizing resource conversion scenario. We consider two sets of axioms: non-asymptotic and asymptotic. In...
Higher-order derivatives of the QR and of the real symmetric eigenvalue decomposition in forward and reverse mode algorithmic differentiation
univariate Taylor polynomial arithmetic higher-order derivatives QR decomposition real symmetric eigenvalue decomposition
2010/12/15
We address the task of higher-order derivative evaluation of computer programs that contain QR
decompositions and real symmetric eigenvalue decompositions. The approach is a combination of univariate...
Reverse mathematics and equivalents of the axiom of choice
Reverse mathematics equivalents axiom of choice
2010/12/8
We study the reverse mathematics of countable analogues of several maximality principles that are equivalent to the axiom of choice in set theory.
Origins of Reverse Bias Currents in a Typical BPW34 Photodiode
BPW34 PIN Photodiode reverse bias current transport
2010/4/12
Measurements of the dark reverse current in a typical BPW34 silicon photodiode have been made in the temperature range 100-300 K at various reverse bias voltages ranging from 0 to 60 V. Various transp...
Reverse Engineering Financial Markets with Majority and Minority Games using Genetic Algorithms
agent-based models Genetic Algorithms
2010/4/27
Using virtual stock markets with artificial interacting software investors, aka agent-based models (ABMs), we present a method to reverse engineer real-world financial time series. We model financial ...
The Refinement and Reverse of a Geometric Inequality
Geometric inequality Best constant Triangle
2010/4/16
In this paper, we give a refinement and a reverse of a geometric inequality in a triangle posed by Jiang [2] by making use of the equivalent form of a fundamental inequality [6] and classic analysis.
Reverse quenching in a one-dimensional Kitaev model
Reverse quenching one-dimensional Kitaev model
2010/4/13
We present an exact result for the non-adiabatic transition probability and hence the defect density in the final state of a one-dimensional Kitaev model following a slow quench of the parameter $J_-$...
The Reverse and Generalized Poincaré Inequality
equivalent norms unbounded operators Poincar´ e inequality Banach space embeddings Hilbert spaces
2009/6/16
In this paper we show that, by the use of an equivalent norm, one can make unbounded
linear operators exhibit one of the most important properties of bounded operators
without using the graph norm. ...