A New Tape Path Analysis System for All VCR Tape Transport Systems

1985 ◽  
Vol CE-31 (3) ◽  
pp. 398-404 ◽  
Author(s):  
Takashi Yamaguchi
Keyword(s):  
Path Analysis ◽  
Transport Systems ◽  
Tape Transport ◽  
Analysis System

MEASUREMENT OF THE MICROSEISMIC SPECTRUM AT OTTAWA, ONTARIO

1966 ◽  
Vol 3 (5) ◽  
pp. 659-669 ◽  
Author(s):  
R. D. Russell ◽  
F. Kollar
Keyword(s):  
Data Analysis ◽  
Local Time ◽  
Sine Wave ◽  
Tape Transport ◽  
Spectral Analyzer ◽  
Analysis System ◽  
Data Analysis System

A recording seismograph was assembled from commercially available components and by use of a 3/32 inches per second FM tape transport. The system was calibrated by three independent techniques, one of which included the Honeywell spectral analyzer which was used for data analysis. System linearity was checked by comparing the results of sine-wave and impulsive excitation.Microseism spectra were recorded at approximately 1:00 a.m. local time on July 18 and November 1, 1964. They represented on both occasions averages over a 1-hour period. The spectra were similar in shape but different in amplitude. In both spectra the peak ground amplitude per octave occurred at about 5.2 seconds period, and was 360 millimicrons per octave and 2.1 microns per octave for the two occasions, respectively.

Characterization and Simulation of MIMO Transport Systems in Tape

2013 ◽  
Author(s):  
Giovanni Cherubini ◽  
Angeliki Pantazi ◽  
Jens Jelitto
Keyword(s):  
Block Diagram ◽  
Lateral Position ◽  
Transport Systems ◽  
Tape Transport ◽  
Channel One ◽  
Performance Improvements ◽  
Improved Performance ◽  
The Individual ◽  
Hall Sensors ◽  
Longitudinal Position

The potential for significant capacity and performance improvements in tape storage systems appears to be substantial [1],[2]. Advances in several areas, however, are necessary to foster increases in linear and track densities and consequently achieve higher cartridge capacities and improved performance [3],[4]. Reliable and precise tape transport and track-following servomechanisms are of fundamental importance to guarantee best read-channel performance on all parallel data channels during tape operation. In particular, tight control of tension and potentially of tape-dimensional stability (TDS) variations will be necessary for moving to thinner tape material, which in turn will enable an increase in volumetric density. Figure 1 shows the block diagram of conventional tape transport and track-following servomechanisms in a tape drive [5]. A digital dual servo channel provides estimates of the tape velocity, tape longitudinal position, and head lateral position, which are derived from signals read from dedicated servo bands [6]. Hall sensors provide tape velocity information from the individual reels, which typically is used in the absence of a valid velocity estimate from the servo channel. One of the main impairments affecting the performance of tape drives is the variation of tape tension [7],[8], which may be induced by, e.g., reel eccentricities.

On Coupled Dynamics of Frictional Guides in Tape Transport Systems

2014 ◽  
Author(s):  
Hankang Yang ◽  
Sinan Müftü
Keyword(s):  
Mathematical Model ◽  
Transport Systems ◽  
Tape Recording ◽  
Tape Transport ◽  
Resonant Frequencies ◽  
Lateral Tape Motion ◽  
Frictional Damping ◽  
Data Tape ◽  
Lateral Friction ◽  
Frictional Effects

Stationary guides introduce friction on to a travelling tape in the longitudinal and lateral directions. The longitudinal friction increases the tape tension and the lateral friction dampens the lateral tape motion (LTM). A comprehensive mathematical model of the coupled longitudinal and lateral tape dynamics is developed. Frictional effects over a cylindrical guide are modeled as concentrated loads in both longitudinal and lateral directions. In the range of tape transport velocities that are of interest to data tape recording, it was shown that frictional damping causes reduction of resonant frequencies and resonance amplitudes. Positioning of the guiding elements could significantly influence the dynamic response of LTM.

Intelligent Path Analysis System about Based on the Sharing Information of Highway

2014 ◽  
Vol 915-916 ◽  
pp. 1341-1345 ◽  
Author(s):  
Shi Shi Xu ◽  
Yong Qin ◽  
Wei Hua Liu
Keyword(s):  
Statistical Analysis ◽  
Path Analysis ◽  
The Internet ◽  
Network Problem ◽  
Identification Method ◽  
Highway Network ◽  
Time Scheduling ◽  
Loop Network ◽  
Using Data ◽  
Analysis System

With the development of highway construction and technology, various highways could be integrated via the Internet. According to the relevant highway map, we could notice the serious loop network problem. To provide useful information for the highway companies, we need to identify the path of vehicles on the highway network by using the sharing information of highways. This research analyzes some polysomic identification of path about several main expressways; furthermore, it provides a new path-identification method that is the time scheduling match based on the dynamic weights. The new path-identification method includes the later polysomic analysis and statistical analysis on the flow of vehicles, which is able to offer the highway companies sound information. Moreover, the research also establish the smart analysis system about path based on the sharing information of highways, then using data to test the efficiency of the analysis system.

Robust Control of Nonlinear Tape Transport Systems With and Without Tension Sensors

2006 ◽  
Vol 129 (1) ◽  
pp. 41-55 ◽  
Author(s):  
Matthew D. Baumgart ◽  
Lucy Y. Pao
Keyword(s):  
Robust Control ◽  
Feedback Linearization ◽  
State Feedback ◽  
Transport Systems ◽  
Tape Transport ◽  
Control Laws ◽  
Damping Characteristics ◽  
Lyapunov Redesign ◽  
Time Invariant ◽  
Web Media

Web-winding systems, such as tape drives, are often modeled as linear and time-invariant, but at least two nonlinearities are common in these systems. First, the reel radii and moments of inertia change as web media spools from one reel to another. Second, friction can draw a thin layer of air between the layers of web media wrapped on the take-up reel, making the system’s spring and damping characteristics nonlinear by allowing a greater length of media to vibrate freely. In addition to these nonlinearities, there is often uncertainty in the motor parameters. In the first part of this paper, feedback linearization ideas motivate state feedback and changes of variables that transform the system into decoupled and intuitively meaningful tension and velocity loops. For the case where tension measurements are available, Lyapunov redesign techniques are then used to develop control laws that are robust with respect to these nonlinearities and uncertainties. The second part of this paper then develops an observer-based controller for the case where no tension measurements are available. Performance is established analytically for both the measurement-based and observer-based schemes. Simulations illustrate this performance.

PENGARUH KUALITAS LAYANAN DAN SISTEM ADMINISTRASI PERPAJAKAN ELEKTRONIK TERHADAP KEPATUHAN WAJIB PAJAK BADAN KPP PRATAMA PASURUAN MELALUI KEPUASAN WAJIB PAJAK SEBAGAI VARIABEL PENGHUBUNG

2020 ◽  
Vol 6 (1) ◽  
pp. 40-62
Author(s):  
Saiful Islam ◽  
Martaleni Martaleni ◽  
Rini Astuti
Keyword(s):  
Statistical Analysis ◽  
Data Collection ◽  
Service Quality ◽  
Path Analysis ◽  
Tax Revenue ◽  
Tax Administration ◽  
Administration System ◽  
Directorate General ◽  
Analysis System ◽  
High Level

High level of taxpayer compliance is one of the keys to success in achieving tax revenue targets. To improve taxpayer compliance, the Directorate General of Taxes has made several efforts including improving service quality and implementing an electronic tax administration system. The research objective is to determine the magnitude of the effect of service quality and electronic tax administration system on taxpayer compliance which is mediated by taxpayer satisfaction. Data collection by distributing questionnaires to 94 taxpayers as research samples. Statistical analysis used was a path analysis system that was processed with SPSS Version 18. The results of this research stated that service quality directly did not have a significant effect on taxpayer compliance, but indirectly through taxpayer satisfaction service quality significantly affected mandatory compliance tax. While the electronic tax administration system directly has a significant effect on taxpayer compliance but indirectly through taxpayer satisfaction does not have a significant effect on taxpayer compliance. Keywords:  Service quality, Electronic Tax Administration System, Satisfaction, and Taxpayer       Compliance

A Review of Gas Turbine Flow Path Analysis: From Paper Calculation to Artificial Neural Networks

2002 ◽  
Author(s):  
Magnus Genrup ◽  
Mohsen Assadi ◽  
Tord Torisson
Keyword(s):  
Neural Networks ◽  
Artificial Neural Networks ◽  
Path Analysis ◽  
Gas Turbine ◽  
Flow Path ◽  
Third Party ◽  
Spreadsheet Program ◽  
Artificial Neural ◽  
Analysis System ◽  
Turbine Flow Path

Today many methods are available for gas turbine flow path analysis. Some of them are very simple but yet very useful, since they give an indication of the compressor capacity with almost no calculation effort. The state of the art today is the heat and mass balance models (HMB), which are more sophisticated. This paper presents a general overview of these methods, including the most recent trend, Artificial Neural Networks (ANN). In the future, the ANN-based flow path analysis system will probably, to some extent, replace the HMB-based systems, or become a complementary tool for monitoring and performance analysis of power production units. This paper will give a comprehensive explanation of how to build a flow path analysis system in an equation-solving package (e.g. spreadsheet program), by using relationships presented here. This may give a system that is well within the capabilities of most commercially available systems, used and developed by consultant companies (third party companies).

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