Optical ground

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  • The earthquake motion is assigned classified by Japan's land area is classified into three categories according to level seismic risk and adjust the seismic motion by using the regional adjustment factor of 1.0, 0.85 and 0.7 depending on the classification of the area. Meanwhile, the studies to calculate seismic waveforms unique to the target area of seismic design has been conducted in recent years.

    pdf530p lulanphuong 24-03-2012 69 21   Download

  • ADC’s OmniReach™ FTTX Solutions are the industry’s first infrastructure solutions designed from the ground up to meet the unique requirements of FTTX networks. Designed for operational efficiency and scalability, ADC’s OmniReach solutions simplify FTTX network installation, maintenance, and management from the central office/headend to the outside plant. Installed in an outside plant enclosure, passive optical splitter modules give carriers the ability to split optical signals to multiple homes or businesses....

    pdf19p halanh 14-08-2009 108 15   Download

  • Features • Dry cable core • Available in singlemode, 50μm and 62.

    pdf21p halanh 14-08-2009 54 4   Download

  • This introduction to Evidence-Based Dentistry provides a much-needed orientation in the subject for students and professionals alike. It is a ground-level book for those seeking to understand evidence-based dentistry and its significance for clinical practice. The book is anchored in the dental literature: the majority of the chapters offer guidance on interpreting a full published paper; where both the subject of the paper and the study design is of relevance to the field of dentistry.

    pdf158p mnemosyne75 02-02-2013 18 4   Download

  • The AFD above ground fiber distribution system provides access, storage and cable management for passive outside plant fiber optic installations. The AFD houses custom termination, termination/splice and slack storage panels for use as an above ground fiber cross-connect system. The AFD is a heavy-duty, weather-resistant cabinet providing superior cable management and protection of fibers. The AFD is a single-sided cabinet designed to provide front access for both splicing and terminating fibers....

    pdf0p thuyvan 13-08-2009 25 3   Download

  • Traditionally astrophysics has concerned itself with minimum time-scales measured in hours rather than seconds. This was understandable as the available recording media were slow; e.g. chart recorders and photographic plates. In the 1950s, 60s and 70s wavebands away from the optical were developed; from ground based radio studies to space and balloon borne high energy work. In contrast to optical wavelengths instrumentation in these (high and low energy) regimes was capable of time resolutions of less than a second....

    pdf350p tom_123 14-11-2012 22 3   Download

  • As fiber-to-the-x (FTTX) architectures gain momentum as a means for delivering high-speed broadband services to homes and small businesses, many questions have surfaced regarding the best way to connect the large number of drop cables feeding into the network. Drop cables typically connect each optical network terminal (ONT) at the subscriber premise to a fiber access terminal where they are then connected to a main fiber distribution cable.

    pdf4p mylinh 14-08-2009 52 2   Download

  • In our quest to elucidate the origin of the universe and the formation of galaxies, particularly that of the Milky Way in which we live, astounding progress has been made in recent years through observational and theoretical studies. Not only have gigantic surveys covering a large fraction of the sky brought statistics enlightening evolutionary paths of galaxies, but powerful instruments, such as radio interferometers and ground- and space-based optical/ infrared telescopes, have been able to map individual objects with high sensitivity and spatial resolution.

    pdf422p tom_123 14-11-2012 24 7   Download

  • ADC’s OmniReach™ FTTX Solutions are the industry’s first infrastructure solutions designed from the ground up to meet the unique requirements of FTTX networks. Designed for operational efficiency and scalability, ADC’s OmniReach solutions simplify network installation, maintenance and management from the central office to the outside plant. The OmniReach™ Non-Metallic Fiber Access Terminal provides a robust, user friendly and cost-effective platform for delivering fiber optic service drops in FTTX deployment....

    pdf4p halanh 14-08-2009 54 4   Download

  • One night in 1996, an unusually hard rain sent a wall of water onto the campus of Colorado State University (CSU) in Fort Collins, Colo. The flood gutted the ground floor and basement levels of 14 buildings, submerging main distribution frames in each building. Panels were ripped from walls, rooms filled with mud, patch cords floated away, and fiber optic cable filled with water. No one on campus was hurt but, needless to say, the network was down.

    pdf3p mylinh 14-08-2009 73 2   Download

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