Results 21 to 30 of about 3,845,343 (295)
Revisiting the reasons for contact fatigue defects in rails
MATEC Web of Conferences, 2017 As it is known rail is one of the most significant elements of the whole railway construction. Operation under alternating loads from wheels of the rolling stock and different ambient temperatures lead to appearance and development of rail defects and ...
Darenskiy Alexander +4 more
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BMC Pulmonary Medicine, 2019 Background The management and control of pulmonary bacteriologically confirmed (PBC) tuberculosis (TB) also known as infectious TB is important not only to monitor for resistance but also to check for severity, treatment response and limit its spread ...
Nicholas Sebuliba Kirirabwa +8 more
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Rail Track Maintenance Planning: An Assessment Model [PDF]
, 2000 In Australia, railway track maintenance costs comprise between 25-35 percent of total freight train operating costs. Track maintenance planning models have been shown to reduce maintenance costs by 5 to 10 percent though improved planning.
Ferreira, Luis +2 more
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A longer service life of intermediate elastic fastenings KPP-5 due to application of pads PRP-3.2
MATEC Web of Conferences, 2018 Since 2003 Ukrainian railways have used KPP-5 intermediate elastic fastenings. These fastenings unlike their predecessors (for example, terminal-bolted fastenings (KB) widely used on railways), first of all, have fewer elements.
Darenskiy Oleksandr +4 more
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MATEC Web of Conferences, 2017 At present, the most common track model is the one in which rails are presented as bars of infinite length rested on continuous elastic foundation. However, some specialists consider the model to be rather ideal for railways in terms of track and the ...
Darenskiy Alexander +4 more
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Ways of introduction of the high-speed movement of passenger trains in Ukraine
MATEC Web of Conferences, 2018 The article describes the historical background of the introduction and development of high-speed traffic in the world. The main documents regulating the joint work of high-speed trains of the Commonwealth countries are considered.
Shevchenko Anna +4 more
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Assessing the Role of Longitudinal Variability of Vertical Track Stiffness in the Long-Term Deterioration [PDF]
, 2016 The performance of the railway system in terms of dynamic loading is depending mainly on the track support conditions. Usually, the track stiffness is used as the main parameter to describe the support conditions and is defined as the ratio of the load ...
Bezin, Yann +2 more
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Railway noise and vibration: Current European legislation and research and measurements on Serbian railway [PDF]
Facta Universitatis. Series: Architecture and Civil Engineering, 2010 In this paper certain current European noise legislation, standards and research including the Physical Agents Directive, the Environmental Noise Directive 2002/49/EC and the Technical Specifications for Interoperability are summarized and their ...
Tomičić-Torlaković Mirjana +1 more
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Railway track condition assessment at network level by frequency domain analysis of GPR data [PDF]
, 2018 The railway track system is a crucial infrastructure for the transportation of people and goods in modern societies. With the increase in railway traffic, the availability of the track for monitoring and maintenance purposes is becoming significantly ...
Fontul, Simona +3 more
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Track-Down Operations on Bilattices [PDF]
, 2018 This paper discusses a dualization of Fitting's notion of a "cut-down" operation on a bilattice, rendering a "track-down" operation, later used to represent the idea that a consistent opinion cannot arise from a set including an inconsistent opinion. The
Szmuc, Damian
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