Xem 1-17 trên 17 kết quả Electrical damages
  • This book reviews a big window of opportunity for piezoelectric ceramics, such as new materials, material combinations, structures, damages and porosity effects. In addition, applications of sensors, actuators, transducers for ultrasonic imaging, positioning systems, energy harvesting, biomedical and microelectronic devices are described. The book consists of fourteen chapters. The genetic algorithm is used for identification of RLC parameters in the equivalent electrical circuit of piezoelectric transducers.

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  • The mitigation of earthquake-related hazards represents a key role in the modern society. The main goal of this book is to present 9 scientific papers focusing on new research and results on earthquake seismology. Chapters of this book focus on several aspect of seismology ranging from historical earthquake analysis, seismotectonics, and damage estimation of critical facilities.

    pdf216p haiduong_1 15-04-2013 38 8   Download

  • Acoustic emission (AE) is a phenomenon in which elastic or stress waves are emitted from rapid, localized change of strain energy in material. The practical application of the AE first emerged in the 1950's, but only in the last 20 years the science, technology and applications of AE have progressed significantly.

    pdf230p lyly_5 22-03-2013 24 6   Download

  • This should consider that premiums reflect both the first party costs (generally damage to the driver’s own vehicle) and third party costs (generally damage to property outside of the driver’s vehicle and injury costs for people outside of the vehicle although it will, of course, include injury costs for passengers in the driver’s vehicle where the driver is at fault). These new technologies, therefore, need to be able to reduce the casualty rate and the level of severity of collisions.

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  • We insure your car for its agreed value. Your car’s agreed value is set by Just Car at the commencement of your policy and it’s almost always adjusted at the beginning of each subsequent period of cover. It is shown on the most recent of your insurance schedule and renewal notice and it does not change during the period of cover. The agreed value includes GST and is the most we will pay for your car , less any excess(es) and any other deductions this policy explains, for accidental loss or damage covered by this policy occurring during the period...

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  • Before installing and commissioning the converter, make sure that you read all the safety notes and warnings carefully, including the warning labels on the equipment itself. The warning labels must always be legible. Missing or damaged labels must be replaced.

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  • Population displacement caused by cyclone damage and flooding can result in overcrowding in resettlement areas, raising the risk of transmission of certain communicable diseases. Measles (see section below on vaccine-preventable diseases), ARI, diphtheria and pertussis are transmitted from person to person through respiratory droplets, and the risks are increased in situations of forced relocation to shared areas which are overcrowded and have inadequate ventilation. Overcrowding can also increase the likelihood of transmission of meningitis, waterborne and vector-borne diseases.

    pdf10p connicquy 14-12-2012 22 3   Download

  • The Alaskan-Aleutian arc has a history of rupturing in large and great earthquakes. The most recent sequence began in 1938 and has ruptured almost the entire arc from southern Alaska to the western Aleutians (Figure 1). This sequence includes five great earthquakes: the 1938 Alaskan, 1946 Aleutian, 1957 (Central) Aleutian, 1964 Prince William Sound (or Alaskan), and 1965 Rat Islands earthquakes. Three of these five-the 1957, 1964, and 1965 earthquakes-are among the 10 largest earthquakes of the 20th century. These earthquakes are clearly important to those who assess seismic hazards.

    pdf229p hotmoingay 04-01-2013 20 3   Download

  • Packet Radio When station has frame, it sends Station listens (for max round trip time)plus small increment If ACK, fine. If not, retransmit If no ACK after repeated transmissions, give up Frame check sequence (as in HDLC) If frame OK and address matches receiver, send ACK Frame may be damaged by noise or by another station transmitting at the same time (collision) Any overlap of frames causes collision Max utilization 18%

    ppt45p trada85 18-01-2013 20 3   Download

  • When your car is damaged, we will arrange the repair work for you and choose the repairer who will do the work. We ordinarily require two independent competitive quotes from repairers we recommend. If you choose, you can provide one of the quotes from a repairer you select. Our assessor will review the quotes, including any quote from a repairer you select, and what is necessary to properly repair your car. We will choose the repairer who has submitted the more competitive and complete quote and that will be the repairer who repairs your car. When the repair is complete, you...

    pdf68p nhacchovina 23-03-2013 20 3   Download

  • Legislatures are considering this issue. In 2008, the Maryland legislature amended its title laws to include brands for flood and cosmetic damage to the definition of salvage vehicles. The new law redefines the term “salvage” to mean that cost to repair the damaged vehicle is greater than 75 percent of the vehicle’s pre-damage fair market value. The fiscal note on the bill indicated it will prevent vehicles involved in accidents from being rebuilt and resold under false brands. ...

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  • Oracle provides for complete media recovery from all possible types of hardware failures, including disk failures. Options are provided so that a database can be completely recovered or partially recovered to a specific point in time. If some datafiles are damaged in a disk failure but most of the database is intact and operational, the database can remain open while the required tablespaces are individually recovered. Therefore, undamaged portions of a database are available for normal use while damaged portions are being recovered. ...

    pdf20p nhacsihuytuan 13-04-2013 13 2   Download

  • Most valves use some form of packing to prevent leakage from the space between the stem and the bonnet. Packing is commonly a fibrous material (such as flax) or another compound (such as teflon) that forms a seal between the internal parts of a valve and the outside where the stem extends through the body. Valve packing must be properly compressed to prevent fluid loss and damage to the valve's stem. If a valve's packing is too loose, the valve will leak, which is a safety hazard. If the packing is too tight, it will impair the movement and possibly damage the stem....

    pdf34p loixinloi 08-05-2013 12 2   Download

  • Sét đánh là một trong những yếu tố chủ yếu gây sự cố trên đường dây và làm ngừng cung cấp điện gây thiệt hại kinh tế cho hộ tiêu thụ. Bài báo trình bày phương pháp tính toán và xây dựng chương trình tính toán lựa chọn phương án treo dây chống sét cho đường dây truyền tải điện nhằm nâng cao hiệu quả kinh tế. ABSTRACT Thunder is one of the major causes leading to electric wire incidents and thus, to complete blackout and economic damage for consuming households.

    pdf11p chuonchuongiay 07-01-2011 188 79   Download

  • Each stage in the life cycle of coal—extraction, transport, processing, and combustion—generates a waste stream and carries multiple hazards for health and the environment. These costs are external to the coal industry and are thus often considered “externalities.”We estimate that the life cycle effects of coal and the waste streamgenerated are costing the U.S. public a third to over one-half of a trillion dollars annually.Many of these so-called externalities are, moreover, cumulative.

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  • Technology Pioneer Transphorm sees its mission as increasing the efficiency of voltage conversion in electronic systems. While electric transmission lines are most effective at moving alternating current over long distances, most devices operate internally on direct current. Silicon-based converters manage only to transform about 85% of the electric power. The remaining 15% is lost in heat that can damage delicate electronics.

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  • Moisture deficiencies occurring early in the crop cycle may delay the maturity season and reduce yields. Shortages later in the season often lower quality, as well as yields. However, irrigation surplus, especially late in the season, can reduce both the quality and the post-harvest life of the crop. Uneven or surplus irrigation, above the amount required to replace evapotranspiration, causes nitrate leaching below the root system and the ability of the crop to recover from the nitrogen deficiency decreases.

    pdf8p docvachiase 03-05-2013 18 3   Download

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