搜索结果: 1-15 共查到“理学 JOIN”相关记录19条 . 查询时间(0.197 秒)
What motivates people to join--and stick with--citizen science projects?（图）
citizen science projects Dead Bird coastal beach
2019/10/22
From searching for extraterrestrial life to tracking rainfall, non-experts are increasingly helping gather information to answer scientific questions. A hands-on, outdoor citizen science project, the ...
Hurricane forecasters will be ready for the upcoming peak of hurricane season, thanks to a partnership between the National Science Foundation (NSF) and the National Oceanic and Atmospheric Administra...
Astronomers join forces to speed discovery of habitable worlds
Astronomers speed discovery habitable worlds
2015/4/30
UC Berkeley astronomers will lead one of 16 new projects funded by NASA to coordinate different exoplanet searches to more efficiently find habitable planets around other stars, and perhaps extraterre...
On the strong metric dimension of corona product graphs and join graphs
Strong metric dimension strong resolving sets strong metric basis clique number corona graph
2012/4/18
Let $G$ be a connected graph. A vertex $w$ strongly resolves a pair $u$, $v$ of vertices of $G$ if there exists some shortest $u-w$ path containing $v$ or some shortest $v-w$ path containing $u$. A se...
Cut-and-Join operator representation for Kontsewich-Witten tau-function
Cut-and-Join operator representation Kontsewich-Witten tau-function
2010/12/16
In this short note we construct a simple cut-and-join operator representation for Kontsevich-Witten tau-function that is the partition function of the two-dimensional topological gravity. Our derivati...
Ancient Romans join neutrino hunt（图）
Ancient Romans neutrino hunt the CUORE neutrino experiment
2010/4/28
Ever on the look-out for ultra-low radioactive materials to shield their sensitive experiments, nuclear physicists have struck gold with a consignment of lead that lay on the floor of the Mediterranea...
Shock compression of liquid silicates to 125 GPa: The anorthite‐diopside join
Shock compression The anorthite‐diopside join
2014/4/8
We determined the equation of state (EOS) of three silicate liquid compositions by
shock compression of preheated samples up to 127 GPa. Diopside (Di; Ca2Mg2SiO6)
at 1773 K, anorthite (An; CaAl2Si2O...
一类可修非周期Fork-Join排队网络分析
排队网络 可靠性 稳态
2008/12/12
研究一类排队空间有限且服务台可修的非周期Fork-Join排队网络,给出求解稳态
概率的直接法和等效法,并计算一些排队指标和可修指标(如稳态队长、服务台的可用度和服
务台的失效概率),最后通过仿真验证其正确性.
American Association for the Advancement of Science, National School Boards Association Join in Historic Science Education Effort
mathematics developing science
2007/4/17
14 April 2007，SAN FRANCISCO—Despite public perceptions that local school boards are battlegrounds over evolution and other science-related issues, board members in the Kansas City area are far more co...
Alex Klippel and Frank Hardisty Join the PSU Geography Department（图）
Alex Klippel Frank Hardisty Geography
2007/1/30
January 17, 2007，The advent of 2007 brought some fresh faces to the Penn State Geography Department: Alex Klippel and Frank Hardisty. Alex joins the department as an Assistant Professor, specializing ...
International agencies join forces to advise OIE animal health and welfare fund
animal health avian influenz
2006/11/13
02-Nov-2006，Five international organizations met in Paris on 20 October 2006 to advise the World Organization for Animal Health (OIE) on funding to help developing countries meet international standar...
Compositional Gap in Dioctahedral-Trioctahedral Smectite System: Beidellite-Saponite Pseudo-Binary Join
Beidellite-Saponite Join Compositional Gap Hydrothermal Experiment Mixed-Layer Phases
2011/12/8
Abstract: A series of hydrothermal experiments were performed to determine the phase relations on the beidellite-saponite pseudo-binary join. Quenched glasses with stoichiometric dehydrated compositio...
The MgTiO3-FeTiO3 join at high pressure and temperature
MgTiO3-FeTiO3 join high pressure temperature
2012/4/1
The phase relations at high pressure and high temperature for the FeTiO -MgTiO join were de-termined using several different experimental methods. Through a series of multi-anvil experiments,a phase ...
Hydrothermal synthesis of amphiboles along the tremolite-pargasite join and in the ternary system tremolite-pargasite-cummingtonite
Hydrothermal syntheses remolite-pargasite join ternary system tremolite-pargasite-cummingtonite
2012/4/1
We report here an investigation of amphibole synthesis within the ternary system Ca Mg Si O (OH) -
Mg Al Si O (OH) -Mg Si O (OH) (= TR-PG-MC) to define better the limits of solid solution
for amphi...