Results 181 to 190 of about 92,194 (299)

Investigating Dynamic Characteristics of Cavitation in Insulating Oil Microgaps Under Vibration: Theoretical Analysis and Experimental Observation

open access: yesHigh Voltage, EarlyView.
ABSTRACT The internal pressure fluctuations caused by vibration in oil‐immersed electrical equipment can initiate bubbles within narrow oil gaps, reducing the electrical strength of equipment and giving rise to the problem of abnormal gas production in oil‐immersed equipment.
Jiajun Yang, Tao Zhao, Yunpeng Liu
wiley   +1 more source

Stimulation Modalities in Wearable Haptic Systems: Single-Mode Feedback to Multiphysics Actuation. [PDF]

open access: yesResearch (Wash D C)
Guo X   +10 more
europepmc   +1 more source

800 kV Fast Circuit Breaker: Mechanical Coupling Modelling, Buffer Design and Development

open access: yesHigh Voltage, EarlyView.
ABSTRACT The 800 kV fast circuit breaker (CB) used in ultra‐high voltage (UHV) converter transformer can reduce the total breaking time to 25 ms. It significantly improves the action speed and breaking capacity of the CB, with promising broad application prospects.
Enyuan Dong   +6 more
wiley   +1 more source

Reduction of vibrations in blanking by MR dampers [PDF]

open access: yes, 2015
Bruschi, Stefania   +3 more
core   +1 more source

The Coloniality of Data: Police Databases and the Rationalization of Surveillance from Colonial Vietnam to the Modern Carceral State

open access: yesThe British Journal of Sociology, EarlyView.
ABSTRACT Tracing the early adoption of computer gang databases by the Los Angeles County Sheriff's Department and the Los Angeles Police Department in the 1980s to the deployment of computationally‐assisted surveillance during the Vietnam War, this paper uses a genealogical approach to compare surveillance technologies developed across the arc of ...
Christina Hughes
wiley   +1 more source

Development of a Nano‐Hybrid Composite Using Bovine Hydroxyapatite and Montmorillonite for Endodontic Applications—An In Vitro Study

open access: yesInternational Endodontic Journal, EarlyView.
ABSTRACT Aim Hydraulic calcium silicate cements are widely employed in endodontics due to their excellent biocompatibility, bioactivity, sealing ability, and remineralisation potential. However, currently used products such as mineral trioxide aggregate (MTA) exhibit several limitations, including discolouration, cost, and poor handling properties ...
P. A. A. S. Prasad Kumara   +6 more
wiley   +1 more source

Caterpillar's Spatial Metamorphosis: Heavy Equipment Manufacturing in the 21st Century

open access: yesSociology Lens, EarlyView.
ABSTRACT Caterpillar Inc., the world's largest heavy equipment manufacturer, grew rapidly in the 20th century before a crisis of overproduction in the early 1980s threatened its survival. In response, it launched the $2.8 billion “Plant with a Future” (PWAF) program, a sweeping material and ideological overhaul that remade the firm for the post‐Fordist
Utkarsh Kumar, Michael L. Dougherty
wiley   +1 more source

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