Results 101 to 110 of about 72,518 (297)
Scheduling co-operating stacking cranes with predetermined container sequences [PDF]
, 2015 Angeloudis, P, Briskorn, D
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Structural Concrete, EarlyView.Abstract This paper presents a numerical and experimental study aimed at the modeling and dynamic characterization of the reinforced concrete structure of the Palazzetto dello Sport in Rome, designed and by Pier Luigi Nervi with Annibale Vitellozzi, and built by Nervi & Bartoli contractors in 1956‐57.
Jacopo Ciambella +2 more
wiley +1 more source
An experimental study of the efficiency of optimal control for lifting machines [PDF]
, 2019 The article is devoted to the synthesis of optimal speed performance control, in which the Pontryagin maximum principle and the phase-plane method are used to search for switching points of the relay control function.
Anishchenko, Galina +4 more
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Structural Concrete, EarlyView.Abstract After a blossoming pre‐World War II (WWII) period, the concrete construction industry in then‐socialist Hungary existed in a relative isolation from the Western World during the mid‐20th century. In this paper, we focus on the body of work of one of the then newly established state‐owned design offices, IPARTERV, to show how the isolation ...
Orsolya Gáspár, Péter Haba
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Ecology and EvolutionThe western population of the red‐crowned crane Grus japonensis in mainland China has been decreasing in the past few decades and wild population enhancement programmes have been launched in this country.
Wu Dawei +5 more
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Symbolic Interaction, EarlyView.In this paper, we use Goffman's notion of “face work” to examine how pipeline engineers perform and present their working selves as competent experts. Our analysis identifies various faces and face work tactics, including a focus on professional judgment, actively selling one's expertise relative to others, protective self‐deprecatory strategies, and ...
Sarah Maslen +2 more
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Wildlife Biology, EarlyView.Drones are used to monitor bird nesting sites at less accessible locations, such as on cliffs, human infrastructure, or within the tree canopy. While there are a growing number of studies documenting avian behavioral responses to various drones, there is a continued need to monitor taxa‐specific responses to different drone models. We explored both the
Natasha K. Murphy +4 more
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Urban bats show dietary flexibility in aquatic arthropod consumption at urban and rural waterbodies
Wildlife Biology, EarlyView.Urban waterbodies are critical for biodiversity and provide feeding grounds for insectivorous bats. Yet, how urbanisation affects bats' food choices at urban waterbodies and the role of emergent aquatic arthropods remain poorly understood. We compared the diet of three urban bat species – Vespadelus vulturnus, Chalinolobus gouldii,and Myotis macropus –
Tanja M. Straka +7 more
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Construction Safety Risk Assessment and Cause Analysis for High-Cable Tower Cranes
Engineering ProceedingsIn the construction of modern bridges, tower cranes are used for vertical transportation and hoisting. In erecting and removing tower cranes, a high degree of risk occurs.
Zhensong Ni, Shuri Cai, Cairong Ni
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Anti-Sway Control for Haptic Crane for Application of Material Handling by Using Active Force Control (AFC) [PDF]
, 2010 This paper focuses on anti-sway control system for haptic crane that uses accelerometer and weight sensor as sway sensor and mass calculation of payload. The control method proposed is AFC which is able to control more accurate and robust while transport
Alasiry, Ali Husein +3 more
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