Results 61 to 70 of about 529,224 (335)

EMERGInG RISKS In SMART PROCESS InDUSTRY CRAnES SURVEY: SAF€RA RESEARCH PROJECT SPRInCE [PDF]

Serbian Journal of Management, 2015
Current accident theories show that the solution to avoid human error cannot be based on focusing only on the correction of operators’ behavior, but needs certain innovation that will help to keep an error away.
Vesna Spasojević Brkić, Maria Francesca Milazzo, Aleksandar Brkić, Tasko Maneski   +3 more
doaj   +1 more source

Ecological connection between fish preference in the diet of Siberian cranes and their incubation period in tundra zone [PDF]

, 2012
We researched the ecology of the third rarest crane species, Siberian crane, which breeds in northern-eastern Siberian tundra. Nesting in places near great lakes, this crane appears to be an indicator of the global warming processes that affect lake ...
Inga Bysykatova, Maria Vladimirtseva, Sergey Sleptsov   +2 more
core   +1 more source

Time-varying network models

, 2015
We introduce the exchangeable rewiring process for modeling time-varying networks. The process fulfills fundamental mathematical and statistical properties and can be easily constructed from the novel operation of random rewiring.
Crane, Harry
core   +1 more source

Early evolutionary history of the seed

Biological Reviews, EarlyView.
ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman, Alan R. T. Spencer, Jason Hilton   +2 more
wiley   +1 more source

RELIABILITY ANALYSIS OF CRANE LIFTING MECHANISM [PDF]

Scientific Journal of Silesian University of Technology. Series Transport, 2018
This paper focuses on a reliability analysis of various structural variants of a crane lifting mechanism. The reliability of such a mechanism is a basic requisite for the safe operation of the crane as a whole. The article analyses and jointly evaluates
Eva FALTINOVÁ, Martin MANTIČ, Jozef KUĽKA, Melichar KOPAS   +3 more
doaj   +1 more source

Positivity of Spin Foam Amplitudes

, 2001
The amplitude for a spin foam in the Barrett-Crane model of Riemannian quantum gravity is given as a product over its vertices, edges and faces, with one factor of the Riemannian 10j symbols appearing for each vertex, and simpler factors for the edges ...
Ambjørn J, Arnsdorf M, Ashtekar A, Baez J C, Baez J C, Baez J C, Baez J C, Barrett J W, Barrett J W, Carter J S, Christensen J D, Crane L, Freidel L, J Daniel Christensen, John C Baez, Kauffman L, Massey W, Oriti D, Press W H, Rourke C, Yetter D N   +20 more
core   +4 more sources

Subterranean environments contribute to three‐quarters of classified ecosystem services

Biological Reviews, EarlyView.
ABSTRACT Beneath the Earth's surface lies a network of interconnected caves, voids, and systems of fissures forming in rocks of sedimentary, igneous, or metamorphic origin. Although largely inaccessible to humans, this hidden realm supports and regulates services critical to ecological health and human well‐being.
Stefano Mammola, David Brankovits, Tiziana Di Lorenzo, Isabel R. Amorim, Raluca Ioana Bancila, Adrià Bellvert, Enrico Bernard, Anna Blomberg, Paulo A.V. Borges, Martina Cappelletti, Rodrigo Lopes Ferreira, Rosalina Gabriel, Diana M. P. Galassi, Laura Garzoli, Vasilis Gerovasileiou, Grant C. Hose, Kathryn L. Korbel, Simone Martino, Ana Z Miller, Nataša Mori, Veronica Nanni, Giuseppe Nicolosi, Mattia Saccò, Troy S. Sakihara, Marconi Souza Silva, Anne E. Tamalavage, Maja Zagmajster, Efraín Chávez, Christian Griebler, Pedro Cardoso, Alejandro Martínez   +30 more
wiley   +1 more source

Prediction of Drilling Efficiency for Rotary Drilling Rig Based on an Improved Back Propagation Neural Network Algorithm

Machines
Accurately predicting the drilling efficiency of rotary drilling is the key to achieving intelligent construction. The current types of principle analysis (based on traditional interactive experimental methods) and efficiency prediction (based on ...
Cunde Jia, Junyong Zhang, Xiangdong Kong, Hongyu Xu, Wenguang Jiang, Shengbin Li, Yunhong Jiang, Chao Ai   +7 more
doaj   +1 more source

Payload Oscillations Minimization via Open Loop Control. [PDF]

, 2017
The results of tests of payload oscillations, forced by linear control function which allows to minimize payload sway after acceleration phase and after overhead crane stopping are presented in this paper.
Kosucki, Andrzej
core  

A digital twins concept model for integrated maintenance: a case study for crane operation

Journal of Intelligent Manufacturing, 2020
The paper presents an Integrated Maintenance Decision Making Model (IMDMM) concept for cranes under operation especially into the container type terminals.
J. Szpytko, Yorlandys Salgado Duarte
semanticscholar   +1 more source