Peak Load Pricing and Reliability:Contributions to Theory and Method Vijayamohanan Pillai N.
Principles of Loads and Failure Mechanisms:Applications in Maintenance, Reliability and Design. Auflage 2013 T Tinga
Principles of Loads and Failure Mechanisms:Applications in Maintenance, Reliability and Design Springer Series in Reliability Engineering. Auflage 2013 T. Tinga
ISP´s Reliable Network:Reliability, Load Handling and Broadcast prevention Imran Pervaiz, Abrar Kashif Mirza
Demand Side Management:Load Management, Load Profiling, Load Shifting, Residential and Industrial Consumer, Energy Audit, Reliability, Urban, Semi-urban and rural setting INDRA K MAHARJAN
Wind energy has become the world´s fastest growing renewable energy source, with a dynamic industry manufacturing and installing thousands of MWs of new capacity each year. Fully revised and updated to include offshore offshore wind turbines and wind farms, the second edition of Wind Energy Handbook addresses key developments in the wind technology since the publication of its best-selling first edition. This comprehensive description of the mechanical, electrical, aerodynamic, meteorological, and planning aspects of modern wind turbines is suitable for final year undergraduate, postgraduates, and practitioners. Named as one of Choice´s Outstanding Academic Titles of 2012 Every year, Choice subject editors recognise the most significant print and electronic works reviewed in Choice during the previous calendar year. Appearing annually inChoice´s January issue, this prestigious list of publications reflects the best in scholarly titles and attracts extraordinary attention from the academic library community. The authoritative reference on wind energy, now fully revised and updated to include offshore wind power A decade on from its first release, the Wind Energy Handbook, Second Edition, reflects the advances in technology underpinning the continued expansion of the global wind power sector. Harnessing their collective industrial and academic expertise, the authors provide a comprehensive introduction to wind turbine design and wind farm planning for onshore and offshore wind-powered electricity generation. The major change since the first edition is the addition of a new chapter on offshore wind turbines and offshore wind farm development. Opening with a survey of the present state of offshore wind farm development, the chapter goes on to consider resource assessment and array losses. Then wave loading on support structures is examined in depth, including wind and wave load combinations and descriptions of applicable wave theories. After sections covering optimum machine size and offshore turbine reliability, the different types of support structure deployed to date are described in turn, with emphasis on monopiles, including fatigue analysis in the frequency domain. Final sections examine the assessment of environmental impacts and the design of the power collection and transmission cable network. New coverage features: * turbulence models updated to reflect the latest design standards, including an introduction to the Mann turbulence model * extended treatment of horizontal axis wind turbines aerodynamics, now including a survey of wind turbine aerofoils, dynamic stall and computational fluid dynamics * developments in turbine design codes * techniques for extrapolating extreme loads from simulation results * an introduction to the NREL cost model * comparison of options for variable speed operation * in-depth treatment of individual blade pitch control * grid code requirements and the principles governing the connection of large wind farms to transmission networks * four pages of full-colour pictures that illustrate blade manufacture, turbine construction and offshore support structure installation Firmly established as an essential reference, Wind Energy Handbook, Second Edition will prove a real asset to engineers, turbine designers and wind energy consultants both in industry and research. Advanced engineering students and new entrants to the wind energy sector will also find it an invaluable resource.
>Features - 802.11ac Multi-User MIMO (MU-MIMO) - Concurrent dual-band (5GHz/2.4GHz) support - 80MHz channelization; 256-QAM modulation support; 1733Mbps PHY rates at 5GHz - 256-QAM support on 2.4GHz - Ethernet Port Link Aggregation (LACP) - Backward compatible with legacy 802.11 clients - 802.3af mode of operation - 802.11ac standard Tx Beamforming - Space Time Block Coding for increased handset performance - Improved Maximum Ratio Combining (MRC) for best-in-class receive sensitivity - Low Density Parity Check (LDPC) for increased data throughput at all ranges - BeamFlex+ (PD-MRC) improves signal reception of mobile devices - Integrated smart antenna with many unique patterns for ultra reliability - Unmatched Rx sensitivity down to -104dBm - Highly Resilient Architecture - USB port for hosting Internet-of-Things (IoT) devices such as Bluetooth Low Energy (BLE) smart beacons - Integrated DHCP support - Multicast IP video streaming support - Four software QoS queues per client station - Up to 16 BSSIDs per radio with unique QoS and security policies - Wall or ceiling mountable with padlock security - Built in mounting options for fast an easy deployment - WPA-PSK (AES), 802.1X support for RADIUS and AD - Zero-IT and Dynamic PSK - Admission control/load balancing - Band balancing - Captive portal and guest accounts - SmartMesh Networking
We´ve been building dreadnought acoustic guitars since 1963, and our instruments are revered for their value, reliability, and tone. This robust, high-volume body style was developed with an emphasis on string-to-string balance, so that treble, mid and bass registers project evenly.The result is one of the most musically versatile dreadnought guitars available. Our flagship model, the D-55, was introduced in 1968 as a special order-only item, but the response was so strong that within a few years it became a regular production model. The D-55 is prized by players worldwide for its rich, balanced sound and uncompromising specifications.Model Name D-55 with D-TAR™ Pickup System Model Number 385-0506-(Color #) Category Traditional Dreadnought Guitars Body Style Dreadnought Top Solid AAA Spruce Bracing Guild® Scalloped Red Spruce Back Solid Bookmatched Rosewood Sides Solid Rosewood Sides Bridge Ebony Neck 3-Piece Mahogany/Walnut/Mahogany Fretboard Ebony, 12 Radius, (305 mm) Width at Nut 1-11/16 (43 mm) No. of Frets 20 Scale Length 25-5/8 Hardware Gold Machine Heads Gotoh® 700 Series Gold-Plated Open-Back Tuners Pickups D-TAR™ Wave-Length™ Pickup and Preamp System with Load ´N Lock™ Battery Access.The Wave-Length combines a thin, piezo under-saddle transducer with an 18v, low-noise, high input impedance preamp, to create a system with twice the dynamic range of typical 9v systems. The 18v preamp is powered by two AA batteries and a voltage converter. With 18 volts, the signal has more headroom, so hard strumming wont distort as easily. The preamp also has an input for a second source, like a magnetic pickup or a soundboard transducer. Two adjustable trim pots, one for low frequency shelving and one for high frequency shelving, allow you to fine tune and set and forget the bass and treble frequencies to optimize the Wave-Length for your instruments size and shape; enabling you transparently amplify the natural timbre of your acoustic guitar with minimal coloration. The soundhole mounted Volume and Tone controls give the ultimate in final control your tonal palette. But perhaps the coolest part of the system is D-TARs new Load N Locksystem, which allows quick and easy AA batteries changes. Just unscrewthe endpin collar, remove the old batteries, and pop in the new ones. A quarter turn of the collar is all you need to lock them in place. Controls Volume and Tone Controls Surface Mounted Inside the Soundhole,Two Adjustable Trim Pots in the Preamp, One Low Frequency Shelving and One High Frequency Shelving Pickup Switching N/A Finish High Gloss (Nitrocellulose Lacquer) Dovetail Neck Joint with Slim Heel,Lightweight Laminated Birch Tail-Block,30´ Radius Top,Natural Mother-of-Pearl and Abalone Position Inlays,Bound Ebony Fingerboard,Abalone Rosette,Tortoise Shell Pickguard,Dual Action Truss Rod Case Includes C4520 Deluxe Hardshell Case, p/n 3501075207 Strings D´Addario® EXP 17 Coated Phosphor Bronze, Gauges .013 to .056
The beginnings of the 5500 circuit can be traced back to the original 550 equalizer designed by Saul Walker, the founder of Automated Processes Inc. The 550 was designed as a console equalizer, which uses an unbalanced input due to the architecture of the recording console. Because the ergonomics of a console dictate that the controls take up little space, sometimes the number of included functions can be limited. The 5500 is specifically designed to address these limitations; it has a balanced input, a true straight-wire bypass, an integrated power supply with noiseless muting and a range control that expands its versatility to mastering applications.Typical of API products, the 5500 contains no integrated circuits in its signal path. The gain comes from two hand-built 2520 Operational Amplifiers in each channel. The balanced input is handled by a 2510 Discrete Operational Amplifier, which is similar to the 2520, but without the high-current output stage. A key component of the API sound, the 2520 coupled with the API 2503 output transformer, is capable of delivering +30dBm before clipping.An extremely useful feature in the 5500 is the range control. The range of the amplitude controls can be reduced to 1/2 or 1/4 of their stated scale, providing a means to adjust the tonal balance with finer resolution in an even gentler manner. This is especially useful for complex program material as contained in stems or submixes and is ideally suited for mastering purposes.API´s 5500 also features a true hard-wire bypass which wires the output connector directly to the input. Shortly after the power is first applied, or immediately after it is lost, a special circuit enables bypass mode so that power thumps are never heard.The 5500´s input XLR is connected to an active balanced circuit. The unit´s output XLR is driven from a transformer coupled output and can drive any load from 600 ohms or more to full output capability. There is no change from input to output in the unit´s polarity, so it is suitable in studios using either pin 2 or pin 3 as the hot connection. Additionally, the 5500 has a 1/4 inch input connector that interrupts any present signal on the input XLR. It is balanced and can be driven from either balanced or unbalanced sources. A positive signal on the tip will deliver a positive signal on pin 2 of the output XLR. Using the 1/4 inch input does not bypass any internal circuitry and does not change the gain or operating levels.The 5500 features API´s industry exclusive five-year parts warranty and exhibits the reliability and long life characteristic of all API products.Features:-Classic 550b Equalizer design-Two range switches to individually alter gain steps-Useable as a 550b, 550D or 550M-Peak/shelf switch on Hi and Lo bands-True hardwire bypass-Balanced In and Out on XLR-Unbalanced input on 1/4-EQ In/Out switch
The LaChapell Audio Model 992 is a two channel fully balanced all-tube preamplifier and instrument input amplifier. Meticulously hand assembled, every aspect of the 992 speaks of our dedication to quality of sound and solid, robust construction. Utilizing a total of eight vacuum tubes promises that the 992 will absolutely awaken your ears with its warm melodic character and rich low-end response. But, what makes the 992 such a powerful preamp is the level of control the user has over both the input and output stages. Allowing the user to actually throttle gain in or out of either the input stage (for loads of character) or the output stage (for a more clear, transparent response) by way of fully variable potentiometers secures the 992 as one of the most flexible vacuum tube preamps available in today’s market.For the 992’s input stage we chose one of Jensen’s best microphone input transformers; the JT-115k. along with two 12AX7/ ECC83 vacuum tubes per channel; allowing a generous >74dB of raw internal gain. With over 40dB of gain deployed to the input pot alone, your ability to drive and explore the sonic potential of this amplifier becomes very dramatic. The harder you push the input stage the more harmonics are generated; even into 15~20% distortion! And, since this is a balanced amplifier (meaning both negative and positive rails are amplified internally) the distortion will sound compressed and full of energy.The direct instrument input (Hi-Z) stage on the 992 utilizes the high performance Cinemag CM-DBX direct transformer which feeds the balanced differential amplifier input. This double balanced approach allows for an extremely quiet Hi-Z stage; renowned for it’s rich, clear, full sound- highly favored among electric guitar and bass players.The 992’s output stage features a cross-coupled push-pull topology which includes two 12AU7 tubes in parallel with the Jensen JT-11BM line output transformer to balance the outputs. Unlike the input stage, this stage was intentionally designed to be extremely clear and ̇ difficult to overdrive. If you’re looking for a crystal clear signal for your acoustic guitar tracks or ‘airy’ vocal tracks, this is the stage to favor over the input. Output signal strength is easily monitored through an isolated Sifam back-lit VU meter. There are also five illuminated toggle switches per channel for Meter On/Off, 48v (Phantom), -20db input pad, phase reverse and Mute.All of this is housed in a chassis that is built like a tank. Designed with reliability and ̇´´on the road” stamina as a requirement, we start with high grade aluminum stock milled to a sturdy 1/4” front panel with chip resistant powder coating for the finish. All internal compo- nents are well secured using PEM type fasteners and tie-downs. And, of course, ultra-premium components are used throughout: 3/4w Vishay resistors, ASC caps, sealed premium relays … Our goal is to communicate a sense of robust sturdiness when interfacing with the 992. Each ̇ unit is assembled by hand with much care and attention to detail with the hope of preparing it to be the next center piece for any professional recording or broadcast environment. We encourage you to try one and experience for yourself what we think is a new standard of pure tube amplification.Specifications:Internal Gain >74dBTHD+N 0.25% (Variable)Frequency Response: 10Hz to 100KHzMax Output: (1% THD+N) +24dBuNoise Floor: -91dBuTypical EIN: -125dBuInput Impedance: 1.5KΩTube Compliment: 4 x 12AX7 / ECC83 & 4 x 12AU7 / 6189