New Lustre features to improve Lustre metadata and small‐file performance

2019 ◽  
Vol 32 (20) ◽  
Author(s):  
John Fragalla ◽  
Bill Loewe ◽  
Torben Kling Petersen
Keyword(s):  
Small File

Research and Design of the Distributed Mass Small File Storage System Based on WCF

2013 ◽  
Vol 765-767 ◽  
pp. 1087-1091
Author(s):  
Hong Lin ◽  
Shou Gang Chen ◽  
Bao Hui Wang
Keyword(s):  
Fault Tolerance ◽  
Distributed Computing ◽  
Data Storage ◽  
Large Scale ◽  
Storage System ◽  
Hardware Platform ◽  
File Storage ◽  
Computing Framework ◽  
Research And Design ◽  
Small File

Recently, with the development of Internet and the coming of new application modes, data storage has some new characters and new requirements. In this paper, a Distributed Computing Framework Mass Small File storage System (For short:Dnet FS) based on Windows Communication Foundation in .Net platform is presented, which is lightweight, good-expansibility, running in cheap hardware platform, supporting Large-scale concurrent access, and having certain fault-tolerance. The framework of this system is analyzed and the performance of this system is tested and compared. All of these prove this system meet requirements.

System for Continuous and Prolonged Ambulatory ECG Monitoring with Hosting and Visualization on the Cloud

2021 ◽  
Vol 10 (1) ◽  
pp. 57
Author(s):  
Daniel Cuevas-González ◽  
Juan Pablo García-Vázquez ◽  
Miguel Bravo-Zanoguera ◽  
Roberto López-Avitia ◽  
Marco A. Reyna ◽  
...  
Keyword(s):  
Health Care ◽  
Sampling Rate ◽  
Cloud Services ◽  
Ecg Signal ◽  
Ecg Monitoring ◽  
Ambulatory Ecg ◽  
Ambulatory Ecg Monitoring ◽  
Access Information ◽  
Electrocardiogram Ecg ◽  
Small File

In this paper, we propose investigating the ability to integrate a portable Electrocardiogram (ECG) device to commercial platforms to analyze and visualize information hosted in the cloud. Our ECG system based on the ADX8232 microchip was evaluated regarding its performance of recordings of a synthetic ECG signal for periods of 1, 2, 12, 24, and 36 h on six different cloud services to investigate whether it maintains reliable ECG records. Our results show that there are few cloud services capable of 24 h or longer ECG recordings. But some existing services are limited to small file sizes of less than 1,000,000 lines or 100 MB, or approximately 45 min of an ECG recording at a sampling rate of 360 Hz, making it difficult an extended time monitoring. Cloud platforms reveal some limitations of storage and visualization in order to provide support to health care specialists to access information related to a patient at any time.

ULTRASOUND TESTING WITH USING OF THE PHASED ARRAY PROBES. BASIC PRINCIPLES. PART 1

2020 ◽  
pp. 38-43
Author(s):  
V. V. Pankov ◽  
D. S. Pomerantsev
Keyword(s):  
Phased Array ◽  
Scanning Speed ◽  
National Standards ◽  
Basic Principles ◽  
Beam Focusing ◽  
Current State ◽  
The Russian Federation ◽  
High Scanning Speed ◽  
Small File ◽  
Ultrasound Testing

This article discusses the current state of standardization in the Russian Federation in the field of application of ultrasonic testing using a phased array. Attention is drawn to the problem of the lack of national standards (especially terminological), which clearly hinders the active development and implementation of the PA UT method in practice. The basic principles of the classical technology of phased arrays are analyzed. Electronic linear scanning, electronic scanning and combined scanning. Combined scanning has several advantages: a high probability of detecting defects, high scanning speed, quick setup and calibration, quick data analysis and small file size in comparison with conventional sector scanning. Some difficulties were noted when trying to work with classical DGS-curves using the synthetic focusing methods SAFT or FMC / TFM with beam focusing at each image reconstruction point.

scholarly journals Symbolic Implementation of Preliminary Group Classiffication for Ordinary Differential Equations

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
K. S. Govinder
Keyword(s):  
Differential Equations ◽  
Ordinary Differential Equations ◽  
Group Classification ◽  
Symmetry Analysis ◽  
Analysis Package ◽  
Small File ◽  
Fowler Equation ◽  
Preliminary Group

We apply the method of preliminary group classification to ordinary differential equations of the formy(n)=E(x,y,y',…,y(n-1),fi(x)),  i=0,…,m.We show how this method can be implemented via the popular symmetry analysis packagePROGRAM LIEprovided that the package is supplemented with a small file. We then apply this method to an extension of the generalised Emden-Fowler equation given byy′′=∑i=25fixyi.

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