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  • Acleris -- Engineering Economy and Economics for Business and Government
    surprise out of cash flows ensuring that revenues expenses and capital are well understood are realistic and planned for During the heady days of the 90 s the dot com era money flowed freely from investors to organizations often based on little more than someone s hunch outlined on the back of a napkin Nowadays in contrast sage investors managers and responsible custodians of the public purse require that all the economic aspects of an entire project be presented in meticulous detail complete with all the correct assumptions variabilities and statistical items In addition governments require some regulated industries to include an engineering economic analysis as part of tariff filings for example The focus of our discipline is known as Engineering Economics or Engineering Economy depending upon one s perspective and training The bottom line is that an engineering economics analysis of a capital intensive project provides a powerful decision making tool providing a varied choice of economic evaluators as may be most suitable for the project and the organization involved In addition these flexible techniques permit valid comparisons of lease vs buy alternatives benefits vs cost most benefit for the lowest cost determination of minimum revenue requirements estimating project

    Original URL path: http://acleris.com/ (2016-04-29)
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  • Acleris -- Engineering Economy and Economics for Business and Government
    Software and Training Acleris Site Map Contact Acleris Acleris Acleris Home Page Contact Us Disclaimer and Copyright Acleris Site Map Exemplar Reference Engineering Economy Glossary Telecommunications Technology Glossary Voice Over IP White Paper Compressed Video and Direct Broadcast Satellites White

    Original URL path: http://acleris.com/site_map.html (2016-04-29)
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  • Contacting Acleris
    your economics needs Please contact us in strictest confidence using the most appropriate link below We will reply to your query as soon as possible E mail General information Administration Job opportunities Webmaster n b If the e mail address links are not visible above it means that JavaScript isn t enabled on your web browser Instead to contact us please manually enter the following as the to address in

    Original URL path: http://acleris.com/contact_us.html (2016-04-29)
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  • Acleris' -- Glossary of Engineering Economy and Economics Terms
    the means to determine a course of action resulting in the lowest cost greatest profit lowest financial risk or other criteria often based on comparative cost studies Decision making information is derived using the time value of money for projects with one or more capital components Examples include the setting of rates taxes revenues fees or tariffs related to a civil works project or a new product determining the feasibility of an undertaking or to meet regulatory requirements Acleris uses business tools like these for analysis of complex client projects and have prepared this glossary to give managers and planners access to the knowledge relating to making sound economic business decisions ever more necessary in our increasingly competitive yet cost constrained global industrialized society We believe that organizations can make better decisions using these powerful tools especially after the legacy of the dartboard economic decisions of the dot com era Glossary topics include Amortization Benefits vs costs Best choice analysis Cash flow analysis Computer aided analysis Debt and equity End of study factors Engineering economy Feasibility indicators Lease vs buy Payback Profitability Rate of return Sensitivity analysis Simple and compound interest Statistics Taxes Time value of money To use the

    Original URL path: http://acleris.com/info_eglos/eeglossary.html (2016-04-29)
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  • Acleris Web Site -- Copyright and Disclaimer
    for any use or for any purpose whatsoever All content included as part of this Web site is the original work of Acleris staff and remains the sole property of Acleris Permission is granted for third parties to provide links to any of the Acleris web pages However duplicating Acleris material on third party web sites is not permitted without our express written permission Acleris does not condone plagiarism of

    Original URL path: http://acleris.com/disclaimer.html (2016-04-29)
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  • Acleris' -- Telecommunications Glossary -- Audio, Video, Data, Networks, Processing, etc.
    and collaboration enabling technologies Computer applications sharing Computer conferencing Computer Telecommunications Integration CTI Direct Broadcast Satellite DBS MPEG2 MPEG4 H 264 Electroacoustics echo cancellation noise reduction Engineering economy Internet applications VoIP etc Networks Multimedia conferencing Subjective and objective testing Satellites Shared virtual workspace T 120 Video codecs Video teleconferencing Video servers Voice over Internet Protocol VoIP To use the glossary click on the first letter of the term of interest

    Original URL path: http://acleris.com/info/glossary.html (2016-04-29)
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  • Acleris' Voice over IP (VoIP) White Paper
    capable of delivering acceptable quality though achieving that quality is often a matter of luck as much as planning VoIP manufacturers and users need to understand the foibles of the Internet so that they can make deliberate choices to bias their operating set up in favor of good quality The Internet can throw a variety of impairments at a VoIP signal that can often be serious enough to render meaningful communications impossible These impairments include Packet loss One or more data packets gets lost on the network Packet error Some of the bits in the packet get corrupted Phase jitter Some bits in a packet or the entire packet is difficult to decode correctly because of network synchronization problems Packet reordering Because of differential transit time delay between packets packets arrive out of sequence with unpredictable results With VoIP and the public Internet telephony or speech is divided into data packets about ten per second It doesn t take much by way of impairments to make speech difficult to understand or even to make VoIP totally unusable A different class of problem can impair the functionality of the transmission medium as opposed to impairing the VoIP signal Congestion related impairments when an insufficient amount of data arrives to permit communications The public Internet is a wild place Abuses such as spam viruses worms and denial of service attacks can overload networks and routers causing normal traffic to grind to a halt For a latency sensitive application like VoIP the effect of network congestion can be just as devastating to functional communication as impairments to the signal itself Users and manufacturers need to seek ways to minimize the impact of congestion on VoIP to the greatest extent possible FINDING THE FORMULA FOR SUCCESSFUL VoIP Examining some of the major VoIP components making up the system will help users achieve the best value for an investment Remember that VoIP generally works well if everything is perfect as if life were that easy Also different products may have been designed with different specific operating conditions as key priorities Ergo some VoIP products will likely perform better than others in your particular set up CPE Customer Premises Equipment Some services use a desktop appliance to connect with the Internet such as an xDSL cable or wireless modem device with a VoIP port included If the service provider insists on the use of a specific product that happens also to be a low performance product your service is unlikely to meet expectations It s important to understand what quality you can reasonably expect from such a device and what alternative choices exist Some VoIP software relies on the user s PC sound card to provide coding and filtering Some sound cards and PCs are not up to the task and will provide disappointing results regardless of the quality of network Potential purchasers should verify just what is involved and whether it is capable of providing the desired quality of service If the customer premises includes

    Original URL path: http://acleris.com/info/voip.html (2016-04-29)
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  • Acleris' Direct Broadcast Satellite (DBS) and Broadcasting Using Video Compression
    the spot beam satellites used for delivery of local market broadcast stations across the USA Generally other DBS providers including Dish Network in the US and Bell ExpressVu and StarChoice in Canada use similar technologies Similarly DBS systems in other jurisdictions across the world use the same technologies These direct broadcast satellite systems operate using microwave frequencies in what is known as the Ku band The downlink from satellite to earth operates at frequencies between 12 2 gigahertz GHz and 12 7 GHz DirecTV s major full continental USA coverage is from a group of three primary high power satellites together with spot beam satellites for city by city local coverage This primary group of satellites form a mini constellation that can be simultaneously viewed by small fixed round DBS antennas such as those provided by RCA Hughes and others The basic receiver system includes the IRD or integrated receiver decoder the set top box and a small 18 x 20 45 7cm x 50 8cm antenna having an approximate gain of 34 dB at 12 5 GHz and with a half power beamwidth of about 3 5 degrees Each satellite has 16 or more transponders analogous to channels on

    Original URL path: http://acleris.com/info/mpeg2.html (2016-04-29)
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