Results 61 to 70 of about 3,003,229 (282)

Quantum Storage of a Photonic Polarization Qubit in a Solid [PDF]

open access: yesPhys. Rev. Lett. 108, 190504 (2012), 2012
We report on the quantum storage and retrieval of photonic polarization quantum bits onto and out of a solid state storage device. The qubits are implemented with weak coherent states at the single photon level, and are stored for 500 ns in a praseodymium doped crystal with a storage and retrieval efficiency of 10%, using the atomic frequency comb ...
arxiv   +1 more source

A lightweight secure retrieval model applied to intranet

open access: yesJournal of King Saud University: Computer and Information Sciences, 2023
In universities or enterprises that need to establish an intranet to ensure local data security and privacy, intranet users can store their data on the intranet storage server to realize data backup, data confidentiality, dynamic storage space and other ...
Qiang Zhi   +4 more
doaj  

What every urologist should know about surgical trials Part II: What are the results and should I apply them to patient care?

open access: yesIndian Journal of Urology, 2008
Surgical interventions have inherent benefits and associated risks. Before implementing a new therapy, we should ascertain the benefits and risks of the therapy, and assure ourselves that the resources consumed in the intervention will not be exorbitant.
Sohail Bajammal   +2 more
doaj   +1 more source

DNA-Correcting Codes in DNA Storage Systems [PDF]

open access: yesarXiv, 2023
In [1], the authors proposed a new model of DNA storage system that integrates all three steps of retrieval and introduced the concept of DNA-correcting codes, which guarantees that the output of the storage system can be decoded to the original data. They also gave necessary and sufficient conditions for DNA-correcting codes when the data part is free
arxiv  

Noise-assisted Multibit Storage Device [PDF]

open access: yes, 2011
In this paper we extend our investigations on noise-assisted storage devices through the experimental study of a loop composed of a single Schmitt trigger and an element that introduces a finite delay.
Aida   +21 more
core   +2 more sources

بازيابی تصاوير: کاربرد در پزشکی

open access: yesمدیریت اطلاعات سلامت, 2013
هدف هر نظام بازيابی اطلاعات پزشکی، ارائه به‌موقع اطلاعات مرتبط در زمان مناسب به کاربر مناسب است. تصاوير به‌عنوان شکلی از مدارک که می‌توانند حجم قابل توجهی از اطلاعات را منتقل کنند از اهميت خاصی برخوردارند.
Maryam Okhovati   +2 more
doaj  

Local Reconstruction Codes: A Class of MDS-PIR Capacity-Achieving Codes [PDF]

open access: yes, 2018
We prove that a class of distance-optimal local reconstruction codes (LRCs), an important family of repair-efficient codes for distributed storage systems, achieve the maximum distance separable private information retrieval capacity for the case of ...
Amat, Alexandre Graell i   +3 more
core   +2 more sources

What every urologist should know about surgical trials Part I: Are the results valid?

open access: yesIndian Journal of Urology, 2008
Surgical interventions have inherent benefits and associated risks. Before implementing a new therapy, we should ascertain the benefits and risks of the therapy, and assure ourselves that the resources consumed in the intervention will not be exorbitant.
Sohail Bajammal   +2 more
doaj   +1 more source

Optimal Storage and Retrieval of Single-Photon Waveforms

open access: yes, 2012
We report an experimental demonstration of optimal storage and retrieval of heralded single-photon wave packets using electromagnetically induced transparency (EIT) in cold atoms at a high optical depth. We obtain an optimal storage efficiency of (49+/-3)
Chen, J. F.   +7 more
core   +1 more source

Distributed storage algorithms with optimal tradeoffs [PDF]

open access: yesarXiv, 2021
One of the primary objectives of a distributed storage system is to reliably store large amounts of source data for long durations using a large number $N$ of unreliable storage nodes, each with $c$ bits of storage capacity. Storage nodes fail randomly over time and are replaced with nodes of equal capacity initialized to zeroes, and thus bits are ...
arxiv  

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