Telecommunication System: Maintenance Technologies

2014 ◽  
pp. 360-395
Keyword(s):  
Telecommunication System ◽  
System Maintenance

251 Low-cost and low-tech archiving/telecommunication system to exchange echocardiographic cineloops

1999 ◽  
Vol 1 ◽  
pp. S17-S17
Author(s):  
A FERNANDES ◽  
E DIAS ◽  
M FIUZA ◽  
I DIONISIO ◽  
F VEIGA ◽  
...  
Keyword(s):  
Low Cost ◽  
Telecommunication System

Singapore in 1980: Institutionalizing System Maintenance

Asian Survey ◽  
1981 ◽  
Vol 21 (2) ◽  
pp. 253-260
Author(s):  
Chee-Meow Seah
Keyword(s):  
System Maintenance

Development of Broadband Telecommunication System for Railways using Laser Technology

2012 ◽  
Vol 132 (5) ◽  
pp. 666-674
Author(s):  
Kazuki Nakamura ◽  
Shingo Nakagawa ◽  
Hiroshi Matsubara ◽  
Daisuke Tatsui ◽  
Kiyotaka Seki ◽  
...  
Keyword(s):  
Telecommunication System ◽  
Laser Technology

A VERSION FOR IMPROVING THE TELECOMMUNICATION SYSTEM RELIABILITY

2011 ◽  
Vol 70 (9) ◽  
pp. 803-807
Author(s):  
I. Yu. Lysanov ◽  
A. N. Zbinyakov ◽  
Yu. N. Belikov ◽  
I. S. Zakharov ◽  
V. M. Radygin
Keyword(s):  
System Reliability ◽  
Telecommunication System

TAKING INTO CONSIDERATION OF THE MULTIPLE MODE OF THE FUNCTIONING AND CHARACTERISTICS OF THE CONTROL IN RELIABILITY MODELS OF REPLACEMENT TIME SYSTEMS

2019 ◽  
Author(s):  
Iryna Kononova
Keyword(s):  
A Priori ◽  
Telecommunication System ◽  
Structural Element ◽  
Reliability Models ◽  
Quick Recovery ◽  
Reliability Indicators ◽  
A Priori Uncertainty ◽  
Control Of Parameters ◽  
Time Systems ◽  
Time Reserve

The article evaluates the reliability indicators of telecommunication system equipment, which can be represented by multi-mode objects of continuous and episodic use with a time reserve operating under conditions of a priori uncertainty. Particular attention is paid to consideration of the process of functioning of the system with a replenished time reserve. The telecommunication system includes an object represented by one structural element and used in different modes of operation. In each mode, the object can be used continuously or episodically (the object performs tasks that occur at random times), herewith only a certain part of its equipment is operating. The restoration of the facility's operation in each mode is based on the "quick" recovery scheme ("quick" recovery means that the repair time is much less than the average working time of the element between failures). Also, some cases of the transition of an object from one mode to another are considered, and the control system operates according to the method of sequential control of parameters. In this case, the system, after waiting mode, begins to analyze the first parameter of the monitored complex, then the second and so on. After analyzing the parameters, the system enters the waiting mode. These calculated ratios allow for a comprehensive assessment of the reliability of telecommunication equipment, taking into account the totality of the main factors that significantly affect the reliability of the equipment in real conditions of operation, make it possible to solve important practical problems which arise from the improvement of existing equipment and development of existing equipment.

Development and Oral Bioavailability of Self-Emulsifying Formulation of Ketoconazole

2013 ◽  
Vol 5 (4) ◽  
pp. 1858-1865
Author(s):  
Arundhati Bhattacharyya ◽  
M Bajpai
Keyword(s):  
Oral Bioavailability ◽  
Oral Delivery ◽  
Oral Absorption ◽  
Aqueous Suspension ◽  
Droplet Diameter ◽  
Tween 80 ◽  
Concurrent Administration ◽  
System Maintenance ◽  
Pure Drug ◽  
Ph Dependent

Ketoconazole is an imidazole antifungal drug belonging to the class II of Biopharmaceutic Classification System. Maintenance of gastric acidity is essential for adequate dissolution and absorption of ketoconazole. Concurrent administration of antacid and antiulcer preparations decreases the oral absorption of ketoconazole often causing therapeutic failure.  The aim of this study was to evaluate whether a self-emulsifying formulation of ketoconazole would be able to overcome the pH dependent dissolution and oral bioavailability. Self-emulsifying drug delivery system (SEDDS) was prepared after selecting the oil, surfactant and co-surfactant by solubility analysis. Optimum ratio of the components was finalized on the basis of drug content, self-emulsification and mean droplet diameter. The effect of pH on dissolution was studied in comparison to the pure drug. Oral bioavailability was determined in comparison to aqueous suspension in rats and the effect of co-administration of ranitidine hydrochloride solution and a commercially available liquid antacid preparation was studied. The optimized formulation containing 20% Capryol 90 and 40% each of Carbitol and Tween 80, exhibited 100% drug release regardless of the pH whereas the pure drug exhibited a highly pH dependent dissolution. The AUC0-24 resulted with oral administration of the SEDDS formulation was about 34%, 43% and 60% higher compared to the aqueous suspension when administered alone, administered with ranitidine and administered with antacid respectively. The results of the present study demonstrate that self-emulsifying formulations can be utilized for oral delivery of weakly basic drugs like ketoconazole which exhibit pH dependent dissolution.

A Study on the System Maintenance Switching Intention- Focus on the Migration Theory

2017 ◽  
Vol 4 (2) ◽  
pp. 19-24
Author(s):  
Wi Man Kang ◽  
◽  
Yong Duk Chi ◽  
Soo Sang Kim ◽  
Sang Hee Lee ◽  
...  
Keyword(s):  
Migration Theory ◽  
System Maintenance
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