The Experts below are selected from a list of 15 Experts worldwide ranked by ideXlab platform

Zhang Ping - One of the best experts on this subject based on the ideXlab platform.

  • the plasma explosion model in studying the Electric Strike damage on polymer diElectric surface by discharge plasma
    IEEE International Conference on Properties and Applications of Dielectric Materials, 1997
    Co-Authors: Zhang Kaixi, Zhang Ping
    Abstract:

    The amount of energy contained in a discharge channel on a polymer diElectric surface, and the spatial range and the order of formation time of this channel are analysed. The distribution of energy inside the channel and that in the outside circuit during the discharge are also studied. A new plasma explosion model is presented, based on the comparison between the density of energy given out in this kind of spark discharge and that in the ordinary explosion. The law of Electric Strike damage on the polymer diElectric surface caused by the spark discharge plasma and the distribution of stress in the polymer medium under the action of this instantaneous explosion force are studied.

  • the plasma explosion model in studying the Electric Strike damage on diElectric surface by discharge plasma
    Conference on Electrical Insulation and Dielectric Phenomena, 1996
    Co-Authors: Zhang Kaixi, Zhang Ping
    Abstract:

    In this paper, a new model of plasma explosion in solving the problem of electrostatic spark discharge is presented based on the instantaneousness of the time of an electrostatic discharge and very limited spacial range of the discharge channel. This new model is basically different from that one of heat damage. In the light of this new model, calculation has been done and analysis expressions of distribution of stress has been obtained. This calculation result is relatively satisfied in the comparison to the result of our experiment.

  • the plasma explosion model in studying the Electric Strike damage on diclectric surface by discharge plasma
    1996
    Co-Authors: Zhang Ping
    Abstract:

    In this paper, a new model of plasma explsion in solving the problem of electrostatic spark discharge is presented based on the instantaneousness of the time of an electrostatic discharge and very liniited spacial rnngc of thc discharge channcl. This new model is basically difficrent from that one of heat damage. In the light of this new model, calculation has been done and analysis expressions of distribution of stress has been obtained. This calculation result is relatively satisfied in the comparision to theresult of our experiment. 1. INTRODUCTION: In this paper, the amount of energy contained in an electrostatic spark discharge channel, the spatial range of thiis channel arc analysed . The distribution of energy inside this channel and that in the outside circuit during discharge is also studied. A new plasma explosion model is presented based on thie comparision of the density of energy given out in this kind ol electrostatic discharge and that in the explosion of ordinary explosive . The law of the medium damage caused by the Strike of iin electrostatic spark and t he distribution of stress in the medium under the action of this instantaneus force are chiefly studied and the result is important in the predication and proitension of the disaster brought about by the defection of materials damaged by Electric Strike. According to this iiew model , calculation and cxpcriments have been done and the results are in good agreement with each other .

Zhang Kaixi - One of the best experts on this subject based on the ideXlab platform.

  • the plasma explosion model in studying the Electric Strike damage on polymer diElectric surface by discharge plasma
    IEEE International Conference on Properties and Applications of Dielectric Materials, 1997
    Co-Authors: Zhang Kaixi, Zhang Ping
    Abstract:

    The amount of energy contained in a discharge channel on a polymer diElectric surface, and the spatial range and the order of formation time of this channel are analysed. The distribution of energy inside the channel and that in the outside circuit during the discharge are also studied. A new plasma explosion model is presented, based on the comparison between the density of energy given out in this kind of spark discharge and that in the ordinary explosion. The law of Electric Strike damage on the polymer diElectric surface caused by the spark discharge plasma and the distribution of stress in the polymer medium under the action of this instantaneous explosion force are studied.

  • the plasma explosion model in studying the Electric Strike damage on diElectric surface by discharge plasma
    Conference on Electrical Insulation and Dielectric Phenomena, 1996
    Co-Authors: Zhang Kaixi, Zhang Ping
    Abstract:

    In this paper, a new model of plasma explosion in solving the problem of electrostatic spark discharge is presented based on the instantaneousness of the time of an electrostatic discharge and very limited spacial range of the discharge channel. This new model is basically different from that one of heat damage. In the light of this new model, calculation has been done and analysis expressions of distribution of stress has been obtained. This calculation result is relatively satisfied in the comparison to the result of our experiment.

Maynard Seider - One of the best experts on this subject based on the ideXlab platform.

  • mr sprague did not believe the people would do it the sprague Electric Strike in north adams 1970
    Historical journal of Massachusetts, 2014
    Co-Authors: Maynard Seider
    Abstract:

    Abstract: The ten-week Strike by Sprague Electric Company workers in 1970 in the small city of North Adams, Massachusetts, marked a turning point in labor-management relations at the capacitor plant. After decades of workplace paternalism, Sprague employees voted down their weak local unions, joined national AFL-CIO unions, and struck for better wages, union security, and greater power on the job. During the Strike, the union perspective achieved wide public view as its leaders used handouts, the local press, and access to civic organizations to rebut the Companys public relations offensive. The union push, combined with strong picket line solidarity and local support, enabled the Strikers to win some of their key objectives. This study draws on oral histories, union archives, and company records to examine perceptions of the Strike during 1970 and afterwards. While the Sprague Strike is an important moment in Northeast labor history, its aftermath in North Adams also offers a capsule portrait of larger trends in deindustrialization, attacks on unions, and the rightward shift of the Democratic party. Maynard Seider, a professor emeritus of Sociology at Massachusetts College of Liberal Arts (MCLA), recently completed his first film, Farewell to Factory Towns?, which traces the history of North Adams.INTRODUCTIONIn 1970 more than 2,000 blueand white-collar workers in North Adams engaged in a militant ten-week Strike against Sprague Electric Company. Sprague had dominated employment in the northern Berkshires since World War II and had never before faced such a significant and lengthy Strike. For much of its history in North Adams, the electronic component company held the upper hand in dealing with its weak labor unions, leaving the workforce low-paid and ill-protected on the shop floor. What precipitated the Strike? And what created the strong sense of camaraderie among the production, office, and technical workers who came together to challenge the power of the world's largest capacitor company? And what would be the consequences of the mighty upsurge of 1970 to the community's memory, both immediately after the Strike and years later?Tucked in a valley in the northwestern corner of Massachusetts, North Adams possesses an industrial history similar to numerous other New England mill towns, with immigrants from Ireland, Wales, French-Canada, and Italy finding work in the textile and shoe factories that sprang up alongside the Hoosac River in the second half of the nineteenth century. By 1900, the city's population had grown to 24,200, and it surpassed Pittsfield to become the largest community in Berkshire County. In the 1920s, sixteen passenger trains a day moved into and out of North Adams, a city one writer described as "nervous with the energy of twentieth-century America. No city [of its size] in New England has a greater variety of retail establishments: merchants must stock goods for workers of different nationalities and notions, and for a large farming population."1 With the ups and downs of the textile industry, however, hard times often meant that wages stayed low and, in many households, both adults labored in local factories. With textiles and shoe production still dominant as late as 1940, some 6,600 workers in a city of close to 23,000 worked in nine large mills.2Change came to the city in 1930 when Robert C. Sprague (1900-1991) moved his small capacitor company from Quincy, Massachusetts, to the Beaver Mill in North Adams. Sprague Specialties, as it was called then, had outgrown its manufacturing space in Quincy, and North Adams business owners traded cash for stock to entice the fledgling company to move into the 160,000 square foot abandoned textile mill. Sprague, an Annapolis graduate and naval officer, had invented a lightweight paper capacitor, a crucial component for the growing radio market. A capacitor "is an Electrical component, used to store a charge temporarily, consisting of two conducting surfaces separated by a nonconductor. …

Kohl Thomas - One of the best experts on this subject based on the ideXlab platform.

  • Visualizing preferential magmatic and geothermal fluid pathways via Electric conductivity at Villarrica Volcano, S-Chile
    'Elsevier BV', 2020
    Co-Authors: Pavez Maximiliano, Schill Eva, Held Sebastian, Díaz Alvarado Daniel, Kohl Thomas
    Abstract:

    Preferential fluid pathways along regional fault systems are crucial for the spatial localization of volcanic and geothermal manifestations. Differences in Electric properties of fluids and hydrothermal alteration products against the unaltered matrix allow for visualization of such pathways. Unfavorable geometry for 2-D inversion resulting from the fluid pathways in regional faults often being aligned along the geo-Electric Strike can be overcome by using 3D inversion of magnetotelluric data. For a section in the 1400 km long Liquifie-Ofqui Fault System (LOFS), we demonstrate the potential of 3-D inversion of magnetotelluric data for visualization of fluid pathways. Six out of eight Electric resistivity anomalies at intermediate depth are connected to volcanic or geothermal surface manifestations. Deep and highly conductive anomalies are detected in the vicinity of the volcanic chain and where the LOFS is crosscut by a fault that belongs to the Andean transversal fault system. The anomaly related to the fault crossing reveals a vertical pathway extending to the surface. Phase tensor analyses indicate a structural origin of the latter anomaly that may be connected to a line of volcanic cones that occurs in the NE of the Villarrica Volcano.Karlsruhe Institute of Technology (KIT) FONDAP-CONICYT 15090013 Andean Geothermal Center of Excellence (CEGA) FONDAP-CONICYT 15090013 BMBF-CONICYT International Scientific Collaborative Research Program FKZ 01DN14033/PCCI130025 National Agency for Research and Development (ANID)/Scholarship Program/DOCTORADO BECAS CHILE DAAD/2015-6215001

Pavez Maximiliano - One of the best experts on this subject based on the ideXlab platform.

  • Visualizing preferential magmatic and geothermal fluid pathways via Electric conductivity at Villarrica Volcano, S-Chile
    'Elsevier BV', 2020
    Co-Authors: Pavez Maximiliano, Schill Eva, Held Sebastian, Díaz Alvarado Daniel, Kohl Thomas
    Abstract:

    Preferential fluid pathways along regional fault systems are crucial for the spatial localization of volcanic and geothermal manifestations. Differences in Electric properties of fluids and hydrothermal alteration products against the unaltered matrix allow for visualization of such pathways. Unfavorable geometry for 2-D inversion resulting from the fluid pathways in regional faults often being aligned along the geo-Electric Strike can be overcome by using 3D inversion of magnetotelluric data. For a section in the 1400 km long Liquifie-Ofqui Fault System (LOFS), we demonstrate the potential of 3-D inversion of magnetotelluric data for visualization of fluid pathways. Six out of eight Electric resistivity anomalies at intermediate depth are connected to volcanic or geothermal surface manifestations. Deep and highly conductive anomalies are detected in the vicinity of the volcanic chain and where the LOFS is crosscut by a fault that belongs to the Andean transversal fault system. The anomaly related to the fault crossing reveals a vertical pathway extending to the surface. Phase tensor analyses indicate a structural origin of the latter anomaly that may be connected to a line of volcanic cones that occurs in the NE of the Villarrica Volcano.Karlsruhe Institute of Technology (KIT) FONDAP-CONICYT 15090013 Andean Geothermal Center of Excellence (CEGA) FONDAP-CONICYT 15090013 BMBF-CONICYT International Scientific Collaborative Research Program FKZ 01DN14033/PCCI130025 National Agency for Research and Development (ANID)/Scholarship Program/DOCTORADO BECAS CHILE DAAD/2015-6215001