関連する実験動画

Updated: Jan 29, 2026

Experimental Study of the Relationship Between Particle Size and Methane Sorption Capacity in Shale

Experimental Study of the Relationship Between Particle Size and Methane Sorption Capacity in Shale

Published on: August 2, 2018

容量達成型ビザンチン耐性プライベート情報検索方式の最適ファイルサイズについて

Stanislav Kruglik¹, Han Mao Kiah², Son Hoang Dau³

¹Department of Electrical and Photonics Engineering, Technical University of Denmark, 2800 Kongens Lyngby, Denmark.

Entropy (Basel, Switzerland)

|January 28, 2026

Abstract:

We consider the problem of designing a Private Information Retrieval (PIR) scheme for n files replicated on k servers that can collude and return incorrect answers. Our goal is to correctly retrieve a specific message while keeping its identity private from the database servers. We focus on minimizing download costs and propose PIR schemes with minimal download costs and the smallest file size (proportional to the number of involved servers). Motivated by the possible presence of stragglers, we extend our previous conference results and propose a scheme in which the number of participating servers may vary.

キーワード:

ビザンチン耐性容量ファイルサイズ情報検索セキュリティとプライバシー

さらに関連する動画

One-day Workflow Scheme for Bacterial Pathogen Detection and Antimicrobial Resistance Testing from Blood Cultures

One-day Workflow Scheme for Bacterial Pathogen Detection and Antimicrobial Resistance Testing from Blood Cultures

Published on: July 9, 2012

Quantification and Size-profiling of Extracellular Vesicles Using Tunable Resistive Pulse Sensing

Quantification and Size-profiling of Extracellular Vesicles Using Tunable Resistive Pulse Sensing

Published on: October 19, 2014

関連する概念動画

Lung Capacity

Lung Capacity

The air in the lungs is measured in volumes and capacities. Lung volume measures reflect the amount of air taken in, released, or left over after a lung function, like a single inhalation. Lung capacity measures are sums of two or more lung volume measures.

Retrieval

Retrieval

Retrieval is the process of getting information out of memory storage and back into conscious awareness. This ability is essential for daily tasks like brushing hair and teeth, driving to work, and performing job duties. Retrieval occurs in three ways: recall, recognition, and relearning.
Recall involves accessing information without cues, such as during an essay test, where individuals must retrieve facts and concepts from memory unaided. Another example is remembering the name of a colleague...

The Z-Scheme of Electron Transport in Photosynthesis

The Z-Scheme of Electron Transport in Photosynthesis

The light reactions of photosynthesis assume a linear flow of electrons from water to NADP+. During this process, light energy drives the splitting of water molecules to produce oxygen. However, oxidation of water molecules is a thermodynamically unfavorable reaction and requires a strong oxidizing agent. This is accomplished by the first product of light reactions: oxidized P680 (or P680+), the most powerful oxidizing agent known in biology. The oxidized P680 that acquires an electron from the...

Cell Size

Cell Size

Cell sizes vary widely among and within organisms. Bacterial cells range between 1-10 micrometers (μm)and are considerably smaller than most eukaryotic cells. The smallest bacteria are 0.1 μm in diameter—about a thousand times smaller than eukaryotic cells, which typically range from 10-100 μm.
Surface Area
Cells can take in nutrients and water via diffusion through the plasma membrane itself or through specific channels in the membrane. The area of the membrane surrounding...

ER Retrieval Pathway

ER Retrieval Pathway

In the secretory pathway, vesicles transport proteins from one cellular compartment to another in forward transport to deliver the protein to its correct location. Occasionally, misfolded proteins and incorrect proteins escape their original compartments, and a retrieval pathway is used to return the escaped proteins to their original compartment.
The ER uses many checkpoints to prevent the entry of incorrectly folded or a resident protein as cargo onto a transport vesicle. These mechanisms...

Respiratory Capacities

Respiratory Capacities

Respiratory capacities are crucial indicators of lung function, representing the maximum amount of air an individual's respiratory system can handle during various breathing phases.
One key metric is the Inspiratory Capacity (IC), which represents the maximum amount of air that can be inhaled with full effort. IC is calculated by summing the tidal volume and inspiratory reserve volume, typically ranging from 2.4 to 3.6 liters.
The Functional Residual Capacity (FRC) represents the air in the...