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相关概念视频

Lattice Centering and Coordination Number02:33

Lattice Centering and Coordination Number

9.4K
The structure of a crystalline solid, whether a metal or not, is best described by considering its simplest repeating unit, which is referred to as its unit cell. The unit cell consists of lattice points that represent the locations of atoms or ions. The entire structure then consists of this unit cell repeating in three dimensions. The three different types of unit cells present in the cubic lattice are illustrated in Figure 1.
Types of Unit Cells
Imagine taking a large number of identical...
9.4K
Bewley Lattice Diagram01:12

Bewley Lattice Diagram

416
The Bewley lattice diagram, developed by L. V. Bewley, effectively organizes the reflections occurring during transmission-line transients. It visually represents how voltage waves propagate and reflect within a transmission line, making it easier to understand the complex interactions that occur.
416
Routh-Hurwitz Criterion II01:19

Routh-Hurwitz Criterion II

163
In the application of the Routh-Hurwitz criterion, two specific scenarios can arise that complicate stability analysis.
The first scenario occurs when a singular zero appears in the first column of the Routh table. This situation creates a division by zero issues. To resolve this, a small positive or negative number, denoted as epsilon (∈), is substituted for the zero. The stability analysis proceeds by assuming a sign for ∈. If ∈ is positive, any sign change in the first...
163
Routh-Hurwitz Criterion I01:15

Routh-Hurwitz Criterion I

116
Consider an electrical power grid, where stability is essential to prevent blackouts. The Routh-Hurwitz criterion is a valuable tool for assessing system stability under varying load conditions or faults. By analyzing the closed-loop transfer function, the Routh-Hurwitz criterion helps determine whether the system remains stable.
To apply the Routh-Hurwitz criterion, a Routh table is constructed. The table's rows are labeled with powers of the complex frequency variable s, starting from the...
116
Reversible and Irreversible Processes01:14

Reversible and Irreversible Processes

4.0K
The thermodynamic processes can be classified into reversible and irreversible processes. The processes that can be restored to their initial state are called reversible processes. It is only possible if the process is in quasi-static equilibrium, i.e., it takes place in infinitesimally small steps, and the system remains at equilibrium However, these are ideal processes and do not occur naturally. An ideal system undergoing a reversible process is always in thermodynamic equilibrium within...
4.0K
Trends in Lattice Energy: Ion Size and Charge02:54

Trends in Lattice Energy: Ion Size and Charge

23.5K
An ionic compound is stable because of the electrostatic attraction between its positive and negative ions. The lattice energy of a compound is a measure of the strength of this attraction. The lattice energy (ΔHlattice) of an ionic compound is defined as the energy required to separate one mole of the solid into its component gaseous ions. For the ionic solid sodium chloride, the lattice energy is the enthalpy change of the process:
23.5K

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相关实验视频

Updated: May 16, 2025

Site-specific Bacterial Chromosome Engineering: ΦC31 Integrase Mediated Cassette Exchange (IMCE)
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Site-specific Bacterial Chromosome Engineering: ΦC31 Integrase Mediated Cassette Exchange (IMCE)

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一个高效的基于格子的集成可撤销的基于身份的加密.

Haodong Huang1, Juyan Li1, Shujun Bi2

  • 1School of Computer and Big Data, Heilongjiang University, Harbin, 150080, China.

Scientific reports
|May 14, 2025
PubMed
概括
此摘要是机器生成的。

本研究引入了一个可扩展的可撤销的基于身份的加密 (RIBE) 方案,以克服用户管理的局限性. 新的基于格子的方法确保了稳定的工作负载和密钥大小,提高了安全性和效率.

关键词:
匿名性 匿名性 匿名性德国 德意志格子格子是一个格子格子.鱼 (RIBE) 是一种鱼.

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A Protocol for the Production of Integrase-deficient Lentiviral Vectors for CRISPR/Cas9-mediated Gene Knockout in Dividing Cells
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A Protocol for the Production of Integrase-deficient Lentiviral Vectors for CRISPR/Cas9-mediated Gene Knockout in Dividing Cells

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Synthesis of Programmable Main-chain Liquid-crystalline Elastomers Using a Two-stage Thiol-acrylate Reaction
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相关实验视频

Last Updated: May 16, 2025

Site-specific Bacterial Chromosome Engineering: ΦC31 Integrase Mediated Cassette Exchange (IMCE)
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Site-specific Bacterial Chromosome Engineering: ΦC31 Integrase Mediated Cassette Exchange (IMCE)

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A Protocol for the Production of Integrase-deficient Lentiviral Vectors for CRISPR/Cas9-mediated Gene Knockout in Dividing Cells
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Synthesis of Programmable Main-chain Liquid-crystalline Elastomers Using a Two-stage Thiol-acrylate Reaction
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科学领域:

  • 密码学 密码学 密码学 密码学
  • 信息安全 信息安全
  • 计算机科学 计算机科学

背景情况:

  • 可撤销的基于身份的加密 (RIBE) 提供无证书的数据加密和用户撤销,用于动态访问控制.
  • 现有的RIBE计划面临可扩展性问题,给关键生成中心 (KGC) 和用户带来负担.
  • 这些局限性阻碍了RIBE在大规模,动态环境中的应用.

研究的目的:

  • 为RIBE提出一个综合的撤销模型,以应对可扩展性挑战.
  • 为了减少KGC的工作量和用户存储需求.
  • 为了让加密器免于管理撤销信息.

主要方法:

  • 开发了一个基于晶格密码学的在线/离线RIBE方案,具有解密密钥暴露阻力 (OO-IRIBE-EnDKER).
  • 在RIBE计划中整合了一个新的撤销模型.
  • 确保了诸如匿名性,解密密钥暴露阻力,量子阻力和选择性安全性等属性.

主要成果:

  • 拟议的OO-IRIBE-EnDKER方案保持了恒定的KGC工作负载和秘密密钥大小.
  • 加密器不再需要处理撤销信息.
  • 实验结果验证了该计划的有效性和效率.

结论:

  • 新的基于格子的OO-IRIBE-EnDKER方案为动态用户管理提供了可扩展和安全的解决方案.
  • 它有效地克服了现有的RIBE撤销模型的局限性.
  • 该方案提供了增强的安全功能,包括量子电阻.