搜索结果: 1-15 共查到“Compact”相关记录396条 . 查询时间(0.14 秒)
A new type of cold spray coating, made from the metal tantalum and applied to the plasma-facing steel walls of fusion reactors, could lead to efficient, compact fusion reactors that are easy to repair...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Prescribing sigma-2 curvature and boundary mean curvature on compact manifolds
紧致流形 sigma-2曲率 边界平均曲率
2023/11/15
On a smooth compact manifold of dimensions three and four with totally non-umbilic boundary，imposing non-negativity assumptions on curvatures of the background metric, we establish that there exists a...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Mixed volume of infinite-dimensional convex compact sets II
无限维 凸紧集 混合体积
2023/11/6
Using the results presented in the previous lecture, namely the generalization of the Tsirelson's theorem [2] to mixed volumes, we calculate the mixed volume of the closed convex hulls of the two orth...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Mixed volume of infinite-dimensional convex compact sets I
无限维 凸紧集 混合体积
2023/11/6
Let K be a convex compact subset of a separable Hilbert space H. One of the most important geometric characteristics of K is its intrinsic volumes. In the finitedimensionalcase (K ? R^d), the intrinsi...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Kazdan-Warner equations on compact Riemann surfaces
紧黎曼曲面 卡兹丹-华纳方程 数学
2023/4/28
In this talk, we shall review firstly the study history of Kazdan-Warner equations on compact Riemann surfaces, which was proposed by Kazdan and Warner on Annals of Math on 1974. Then we shall show th...
CERN and INFN have developed a compact, transportable accelerator for the non-destructive analysis of historical artifacts and artworks, providing a cheaper, more accessible method of analysing large ...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Unit commitment problems and their compact and simple models, algorithms, and applications
Unit commitment problems 机组组合 电力系统优化
2023/4/14
机组组合(UC)作为电力系统优化运行的基本问题之一，其模型的质量严重影响着求解器的求解效率，如何建立高质量的UC问题模型则成为近年研究的热点。为此，我们从大规模电力系统UC问题的模型、算法和应用方面展开研究，主要内容包括：针对单机组组合(1UC)问题，基于Facet、凸包以及动态规划相关理论，研究全新的1UC问题统一建模框架，给出1UC问题一系列适用于不同场景、不同算法的高质量模型；基于滑动窗口、...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Rigidity of non-compact static domains in hyperbolic space via positive mass theorems
正质量定理 双曲空间 非紧致 静域刚性
2023/4/14
We single out a notion of staticity which applies to any domain in hyperbolic space whose boundary is a non-compact totally umbilical hypersurface. For (time-symmetric) initial data sets modeled at in...
VITEK-2 Compact检测奇异变形杆菌、摩根摩根菌、铜绿假单胞菌的部分药敏结果准确性评价
VITEK-2 Compact K-B 法 奇异变形杆菌 摩根摩根菌 铜绿假单胞菌
2021/3/22
探讨 VITEK-2 Compact 检测奇异变形杆菌、摩根摩根菌和铜绿假单胞菌的部分药敏结果的准确性。方法收集 2017 年 3 月 ~2020 年 3 月临床分离的 58 株奇异变形杆菌、32 株摩根摩根菌和 280 株铜绿假单胞菌，以纸片扩散法（K-B 法）为参考方法，用 VITEK 2 Compact AST-GN16 药敏卡检测前两种菌对亚胺培南（IPN）的敏感度，用 AST-GN09药...
梅里埃MALDI-TOF-MS 系统与VITEK 2 Compact 全自动微生物鉴定仪对临床常见病原菌鉴定的一致性分析
病原菌鉴定 基质辅助激光解吸电离飞行时间质谱 VITEK2Compact
2021/3/17
分析梅里埃基质辅助激光解吸电离飞行时间质谱（matrix-assisted laser desorption ionization-time of flightmass spectrometry，MALDI-TOF-MS）系统与VITEK 2 Compact 全自动微生物鉴定仪对临床常见病原菌鉴定的一致性。方法 收集福建医科大学孟超肝胆医院2018 年6 月~ 2019 年3 月来自临床不同标本分...
Post-Quantum Variants of ISO/IEC Standards: Compact Chosen Ciphertext Secure Key Encapsulation Mechanism from Isogenies
Post-quantum cryptosystems Isogeny-based cryptosystems CSIDH
2019/9/17
ISO/IEC standardizes several chosen ciphertext-secure key encapsulation mechanism (KEM) schemes in ISO/IEC 18033-2. However, all ISO/IEC KEM schemes are not quantum resilient. In this paper, we introd...
Compact and Scalable Arbitrary-centered Discrete Gaussian Sampling over Integers
Lattice-based crypto discrete Gaussian sampling implementation
2019/9/16
The arbitrary-centered discrete Gaussian sampler is a fundamental subroutine in implementing lattice trapdoor sampling algorithms. However, existing approaches typically rely on either a fast implemen...
Randomly Rotate Qubits Compute and Reverse --- IT-Secure Non-Interactive Fully-Compact Homomorphic Quantum Computations over Classical Data Using Random Bases
Homomorphic encryption Quantum cryptography Information-theoretic security
2019/9/16
Homomorphic encryption (HE) schemes enable processing of encrypted data and may be used by a user to outsource storage and computations to an untrusted server. A plethora of HE schemes has been sugges...
近年来，量子计算机技术发展迅速，它对传统公钥密码算法的安全性带来了潜在的巨大威胁。因此，美国、中国、欧盟等世界主要国家和地区纷纷开始研制抗量子计算机攻击的密码算法。其中，美国国家标准与技术研究院（National Institute of Standards and Technology，NIST）于2016年面向全球征集抗量子密码算法标准，并于2017年底完成了首轮候选算法的征集工作。
Fast, Compact, and Expressive Attribute-Based Encryption
attribute-based encryption standard assumption non-monotone
2019/8/27
Attribute-based encryption (ABE) is an advanced cryptographic tool and useful to build various types of access control systems. Toward the goal of making ABE more practical, we propose key-policy (KP)...