搜索结果: 1-15 共查到“expanding”相关记录112条 . 查询时间(0.093 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Expanding cone and homogeneous dynamics
膨胀锥体 均匀动力学 非紧致简单李群
2023/4/17
We introduce the notion of expanding cone of a noncompact simple Lie group. This allows us to extend several results in homogeneous dynamics to more general settings. We show how this notion is used i...
The current rate of the expansion of space – called the Hubble constant – is a measure of the age and size of the universe. But recently, a new debate has emerged about the Hubble constant, potentiall...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Birkhoff genericity for points on curves in expanding horospheres and Diophantine applications
星座图 曲线 Birkhoff泛型 丢番图应用
2023/5/16
Let $\{a(t):t \in \mathbb{R}\}$ be a diagonalizable subgroup of $SL(d,\mathbb{R})$ for which the expanded horosphere $U$ is abelian. By the Birkhoff ergodic theorem, for any point $x \in SL(d,\mathbb{...
New Cornell research shows how to make offshore wind farms more efficient in the face of impending rapid expansion – crucial information as the U.S.
Scientists report 6 novel variants in CRISPR-Cas12a in plants,expanding genome engineering（图）
report 6 novel variants CRISPR-Cas12a plants expanding genome engineering
2021/4/9
The research of plant scientist Yiping Qi at the University of Maryland focuses on innovative genome editing and engineering techniques in plants, with the goal of improving the efficiency o...
How fast is the universe expanding? Galaxies provide one answer（图）
universe expanding Galaxies answer
2021/4/9
Determining how rapidly the universe is expanding is key to understanding our cosmic fate, but along with more precise data comes a conundrum. Estimates based on measurements in our current universe d...
Immunity of recovered COVID-19 patients could cut risk of expanding economic activity（图）
Immunity recovered COVID-19 patients cut risk expanding economic activity
2020/5/15
While attention remains focused on the number of COVID-19 deaths and new cases, a separate statistic -- the number of recovered patients -- may be equally important to the goal of minimizing the pande...
How to leverage hardness of constant degree expanding polynomials over R to build iO
public-key cryptography Obfuscation
2019/9/16
In this work, we introduce and construct DD-restricted Functional Encryption (FE) for any constant D≥3D≥3, based only on the SXDH assumption over bilinear groups. This generalizes the notion of 33-res...
How to leverage hardness of constant-degree expanding polynomials over $\mathbb{R}$ to build iO
FE Indistinguishability Obfuscation
2018/11/6
DD -restricted FE allows for useful evaluation of constant-degree polynomials, while only requiring the SXDH assumption over bilinear groups. As such, it is a powerful tool for leveraging hardness tha...
Expanding Tropical Forest Spells Disaster for Conservation（图）
expanding tropical forest disaster conservation
2017/9/19
A North Carolina State University study shows that fire suppression efforts in Brazilian savannas turn many of those areas into forest lands, with negative consequences for the plants and animals that...
Study Finds Mosquito-Borne Viruses Like Zika Could Be Spread at Lower Temperatures,Potentially Expanding Impact
Mosquito-Borne Viruses Zika Spread Lower Temperatures Potentially
2017/7/20
This map depicts the number of months when there is a greater than 97.5 percent chance of disease transmission by the mosquitos Aedes albopictus and Aedes aegypti, based on the model developed in a st...
Meet-in-the-Middle Attacks on Classes of Contracting and Expanding Feistel Constructions
Unbalanced Feistel Generic Attack Key Recovery
2016/12/29
We show generic attacks on unbalanced Feistel ciphers based on the meet-in-the-middle technique. We analyze two general classes of unbalanced Feistel structures, namely contracting Feistels and expand...
SEAM Workshop, Expanding our Understanding of Geoscience
Signal processing Non-seismic modeling
2016/7/27
Join the geoscientists who have been involved in building SEAM models, along with the teams that are using these large-scale Earth models and their simulated geophysical data in the research and devel...
Expanding Antarctic sea ice linked to natural variability（图）
Antarctic sea ice natural variability
2016/7/15
The recent trend of increasing Antarctic sea ice extent — seemingly at odds with climate model projections — can largely be explained by a natural climate fluctuation, according to a new study led by ...
Expanding the Frontiers of Computer Science: Designing a Curriculum to Reflect a Diverse Field
Curriculum Concentrations Tracks Multi-disciplinary
2016/5/24
While the discipline of computing has evolved significantly in the past 30 years, Computer Science curricula have not as readily adapted to these changes. In response, we have recently completely rede...