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Pre-life building blocks spontaneously align in evolutionary experiment（图）
Pre-life building blocks spontaneously align evolutionary experiment
2019/10/21
When Earth was a lifeless planet about 4 billion years ago, chemical components came together in tiny molecular chains that would later evolve into proteins, which are crucial life building blocks. A ...
One of Life’s Building Blocks Found around Infant Sun-like Stars
Life’s Building Blocks Infant Sun-like Stars
2017/7/21
Our solar system is teeming with simple carbon-based molecules, the basic building blocks of life. If the conditions are right, these simple molecules can go on to form more complex, biologically inte...
Tiny transformers:Chemists create microscopic and malleable building blocks
Tiny transformers Chemists create microscopic malleable building blocks
2016/8/1
Taking a page from Jonathan Swift’s “Gulliver’s Travels”, a team of scientists has created malleable and microscopic self-assembling particles that can serve as the next generation of building blocks ...
An integrated study of physical precursors of failure in relation to earthquake prediction, using large scale rock blocks
precursors simulation failure complex parameter prediction earthquake
2015/9/30
This paper is multi-analysis approach to rock failure using metric size rock samples. The use of large-scale models permits simulation of the seismic process (including internal rupture on several sca...
BASE CHANGE FOR BERNSTEIN CENTERS OF DEPTH ZERO PRINCIPAL SERIES BLOCKS
BERNSTEIN ZERO PRINCIPAL SERIES BLOCKS
2015/9/29
Let G be an unrami ed group over a p-adic eld. This article introduces a base change homomorphism for Bernstein centers of depth-zero principal
series blocks for G and proves the corresponding base ...
Magnetic anomaly patterns over crustal blocks of the King Edward VII Peninsula, Marie Byrd Land, West Antarctica
Edward VII Peninsula Aeromagnetic anomalies tectonic block west antarctic rift system Marie Byrd Land antartica
2015/9/28
Within the framework of the GITARA II project an aeromagnetic survey was performed during the GANOVEXVII expedition (1992/1993) over the King Edward VII Peninsula in northwestern Marie Byrd Land (West...
SwRI scientists think “planetary pebbles” were the building blocks for the largest planets
SwRI scientists planetary pebbles building blocks largest planets
2015/9/9
Researchers at Southwest Research Institute (SwRI) and Queen’s University in Canada have unraveled the mystery of how Jupiter and Saturn likely formed. This discovery, which changes our view of how al...
Tectonic blocks and suture zones of eastern Thailand: evidence from enhanced airborne geophysical analysis
Tectonic setting Suture, eastern Thailand Enhance airborne geophysics
2015/8/18
Airborne geophysical data were used to analyze the complex structures of eastern Thailand. For visual interpretation, the magnetic data were enhanced by the analytical signal, and we used reduction to...
This article describes a new photogrammetric 3-D measurement system for flat objects like plywood boards. 3-D measurement is
needed to get true dimensions of the object along its possibly curved sur...
Elastic building blocks for confined sheets
Elastic thin sheet bending smooth constraint the stress distribution energy mechanical constraints
2014/12/19
We study the behavior of thin elastic sheets that are bent and strained under the influence of weak, smooth confinement. We show that the emerging shapes exhibit the coexistence of two types of domain...
Nanoparticle Building Blocks for Functional Structures
Artificial enzyme Water-soluble catalyst
2014/11/20
A major goal in material science is achieving a desired function using structures fabricated with designed building blocks. Advanced synthetic and self-assembly techniques allow various nanomaterials ...
A New Preconditioner with Two Variable Relaxation Parameters for Saddle Point Linear Systems with Highly Singular(1,1) Blocks
Saddle Point Linear Systems Block Triangular Preconditioner Krylov Subspace Methods
2013/1/30
In this paper, we provide new preconditioner for saddle point linear systems with (1,1) blocks that have a high nullity. The preconditioner is block triangular diagonal with two variable relaxation pa...
Jackknife and bootstrap with cycling blocks for the estimation of fractional parameter in ARFIMA model
Jackknife bootstrap fractionally parameter ARFIMA model moving blocks non overlapping blocks
2011/4/6
One of most important problems concerning the ARFIMA time series model is the estimation of fractional parameter d. Various methods have been used to solve this problem, such as the log-periodogram r...
Conjectures of Alperin and Broue for 2-blocks with elementary abelian defect groups of order 8
Conjectures of Alperin Broue for 2-blocks elementary abelian defect groups of order 8
2011/2/21
Using the classification of finite simple groups, we prove Alperin’s weight conjecture
and the character theoretic version of Brou´e’s abelian defect conjecture for 2-blocks of finite groups wi...
We prove that the Chow quotient parametrizing configurations of n points in Pd which generically lie on a rational normal curve is isomorphic to M0,n, generalizing the well-known d = 1 result of Kapra...
