Identification of the variables causing the delay in changing channel IPTV service - State of the art

2012 ◽  
Author(s):  
Ernesto Lopez Gonzalez ◽  
Alberto Correa Castrillon ◽  
Andres Navarro Cadavid
Keyword(s):  
State Of The Art ◽  
Iptv Service ◽  
Service State

Manufacturing and Use of Spiral Welded Pipes for High Pressure Service: State of the Art

2004 ◽  
Author(s):  
Franz Martin Knoop ◽  
Baldur Sommer
Keyword(s):  
High Pressure ◽  
Arc Welding ◽  
State Of The Art ◽  
Modern Technology ◽  
Pipe Production ◽  
Cold Bending ◽  
Site Field ◽  
Hot Rolling Mill ◽  
Service State ◽  
Submerged Arc

The HTS (Helical Seam Two Step) manufacturing process is used for the production of HSAW-pipes for high pressure service since 1987. The production process is split into pipe forming combined with continuous tack welding followed by submerged arc welding. The process has been continuously developed further. Details of this modern technology are described and qualitative and economical advantages over the conventional process are explained. The benefits of the existing network with steel plant and hot rolling mill as well as the quality controls, process automatisation and new NDT-equipment used in the pipe production are highlighted. Statistics on mechanical, chemical and dimensional properties of HTS pipes are presented to furnish proof of the uniform and well balanced profile of this product. Results from hot and cold bending on site, field weldability trials and tests related to the safety of spiral pipes are discussed. Results and experiences with the application of three-layer coatings (especially HDPE-high density polyethylene) on spiral pipes are also presented. Actual examples for the use and application of spiral welded pipes in international gas and oil projects are presented and an outlook on future development trends is given.

Maintenance Regime Minimum (MRM): State of the Art — Maintaining Offshore Platforms Before Decommissioning

2017 ◽  
Author(s):  
Kundan Kumar ◽  
R. M. Chandima Ratnayake
Keyword(s):  
Oil And Gas ◽  
State Of The Art ◽  
Offshore Platforms ◽  
Op Amp ◽  
Operational Life ◽  
Mandatory Requirement ◽  
Pressure Chemical ◽  
Optimal Maintenance ◽  
Offshore Oil And Gas ◽  
Service State

It is a mandatory requirement to maintain offshore oil and gas (O&G) production and process platforms during the engineering down period (i.e. the period from the end of the design/operational life to decommissioning). Decommissioning of the offshore production and process (OP&PPs) involves cessation of operations, withdrawal of the facility from service, transformation into an out-of-service state, deactivation and removal. There are several energy sources (i.e. pressure, chemical substances, electrical and mechanical instrumentation, telecom equipment, navigation radar system, gravity, heat/cold, biological substances, etc.), which need to be maintained and/or deactivated until the platform is decommissioned. This manuscript first maps the current state of the art in relation to the maintenance of OP&PSs before decommissioning. Then, the ‘Maintenance Regime Minimum’ (MRM) approach is proposed to perform comparative analysis in order to identify and select the optimal maintenance hours within the decommissioning strategy, based on cost (e.g. man hours required), safety, and environmental challenges. The manuscript also illustrates how the MRM approach focuses on potential decommissioning alternatives in relation to the optimization of maintenance hours and challenges involved in different tags throughout the functional hierarchy. The results of a case study on two topside systems (i.e. in relation to two alternatives) are also presented.

Practical Picture Processing

1974 ◽  
Vol 32 ◽  
pp. 338-339
Author(s):  
T. A. Welton
Keyword(s):  
Radiation Damage ◽  
Coherence Length ◽  
Spatial Information ◽  
State Of The Art ◽  
Coherent Radiation ◽  
The State ◽  
Energy Spread ◽  
Electron Micrograph ◽  
Picture Processing ◽  
Molecular Skeleton

Various authors have emphasized the spatial information resident in an electron micrograph taken with adequately coherent radiation. In view of the completion of at least one such instrument, this opportunity is taken to summarize the state of the art of processing such micrographs. We use the usual symbols for the aberration coefficients, and supplement these with £ and 6 for the transverse coherence length and the fractional energy spread respectively. He also assume a weak, biologically interesting sample, with principal interest lying in the molecular skeleton remaining after obvious hydrogen loss and other radiation damage has occurred.

A Macintosh Interface for the Cameca Camebax-Micro Electron Microprobe

1990 ◽  
Vol 48 (1) ◽  
pp. 438-439
Author(s):  
Carl E. Henderson
Keyword(s):  
Electron Microprobe ◽  
Processing Speed ◽  
Word Processing ◽  
State Of The Art ◽  
Computer Control ◽  
Third Party ◽  
Disk Storage ◽  
The Past ◽  
User Facility ◽  
Instrument Control

Over the past few years it has become apparent in our multi-user facility that the computer system and software supplied in 1985 with our CAMECA CAMEBAX-MICRO electron microprobe analyzer has the greatest potential for improvement and updating of any component of the instrument. While the standard CAMECA software running on a DEC PDP-11/23+ computer under the RSX-11M operating system can perform almost any task required of the instrument, the commands are not always intuitive and can be difficult to remember for the casual user (of which our laboratory has many). Given the widespread and growing use of other microcomputers (such as PC’s and Macintoshes) by users of the microprobe, the PDP has become the “oddball” and has also fallen behind the state-of-the-art in terms of processing speed and disk storage capabilities. Upgrade paths within products available from DEC are considered to be too expensive for the benefits received. After using a Macintosh for other tasks in the laboratory, such as instrument use and billing records, word processing, and graphics display, its unique and “friendly” user interface suggested an easier-to-use system for computer control of the electron microprobe automation. Specifically a Macintosh IIx was chosen for its capacity for third-party add-on cards used in instrument control.

Current Issues: Advanced Digital Technology for Supervising Graduate Clinicians

2010 ◽  
Vol 20 (1) ◽  
pp. 9-13 ◽  
Author(s):  
Glenn Tellis ◽  
Lori Cimino ◽  
Jennifer Alberti
Keyword(s):  
Real Time ◽  
Digital Technology ◽  
Clinical Training ◽  
State Of The Art ◽  
Clinical Skills ◽  
Slow Motion ◽  
Video Capture ◽  
Microsoft Excel ◽  
Clinical Supervisors ◽  
Training And Supervision

Abstract The purpose of this article is to provide clinical supervisors with information pertaining to state-of-the-art clinic observation technology. We use a novel video-capture technology, the Landro Play Analyzer, to supervise clinical sessions as well as to train students to improve their clinical skills. We can observe four clinical sessions simultaneously from a central observation center. In addition, speech samples can be analyzed in real-time; saved on a CD, DVD, or flash/jump drive; viewed in slow motion; paused; and analyzed with Microsoft Excel. Procedures for applying the technology for clinical training and supervision will be discussed.

Behavioral Genetics: Concepts for Research and Practice in Language Development and Disorders

1995 ◽  
Vol 38 (5) ◽  
pp. 1126-1142 ◽  
Author(s):  
Jeffrey W. Gilger
Keyword(s):  
Language Development ◽  
Behavioral Genetics ◽  
State Of The Art ◽  
Genetic Research ◽  
Great Promise ◽  
Behavioral Genetic ◽  
Fine Grained ◽  
Future Goals ◽  
Current State ◽  
Research Designs

This paper is an introduction to behavioral genetics for researchers and practioners in language development and disorders. The specific aims are to illustrate some essential concepts and to show how behavioral genetic research can be applied to the language sciences. Past genetic research on language-related traits has tended to focus on simple etiology (i.e., the heritability or familiality of language skills). The current state of the art, however, suggests that great promise lies in addressing more complex questions through behavioral genetic paradigms. In terms of future goals it is suggested that: (a) more behavioral genetic work of all types should be done—including replications and expansions of preliminary studies already in print; (b) work should focus on fine-grained, theory-based phenotypes with research designs that can address complex questions in language development; and (c) work in this area should utilize a variety of samples and methods (e.g., twin and family samples, heritability and segregation analyses, linkage and association tests, etc.).

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