Results 41 to 50 of about 11,661 (262)

Friction and wear simulation of the wheel–rail interface

, 2009
The conditions in wheel rail contacts can be both mild and severe. Predicting the friction and the wear in such contacts is generally thought to be rather difficult and uncertain.
S. Andersson, Andersson, Sören,
core   +1 more source

Osteohistology of two phorusrhacids reveals uninterrupted growth strategy

The Anatomical Record, EarlyView.
Abstract Phorusrhacidae were apex predators that primarily dominated South America ecosystems for at least 40 million years with their imposing size and predatory lifestyle—yet some aspects of their biology remain poorly understood. Osteohistology is a tool for understanding growth dynamics and biomechanical adaptations.
Lotta Dreyer, Christian Cooper, Jingmai O'Connor   +2 more
wiley   +1 more source

Prediction of wheel profile wear and crack growth - comparisons with measurements

, 2016
A model which can predict the length of the surface crack and crack depth in rails was developed in a previous study by the authors B. Dirks, R. Enblom, A. Ekberg, M. Berg (2015) [].
Berg, Mats,, Enblom, Roger,, Dirks, Babette,   +2 more
core   +1 more source

Nasal soft‐tissue anatomy of Triceratops and other horned dinosaurs

The Anatomical Record, EarlyView.
Abstract Although ceratopsid dinosaurs possess a characteristically hypertrophied narial region, soft‐tissue anatomy associated with such a skeletal structure and their biological significance remain poorly understood. The present study provides the first comprehensive hypothesis on the soft‐tissue anatomy in the ceratopsid rostrum based on the Extant ...
Seishiro Tada, Takanobu Tsuihiji, Hiroki Ishikawa, Noriyuki Wakimizu, Soichiro Kawabe, Kodai Sakane   +5 more
wiley   +1 more source

Building phenotypic character matrices for phylogenetic inference: exploration of 35 years of practice

Biological Reviews, EarlyView.
ABSTRACT Recent methodological development in phylogenetic inference has focused predominantly on molecular data. However, renewed interest in other data types, particularly morphological data, has followed from the increased recognition of the power of total evidence and tip‐dating approaches, including fossil data, for inference of time‐scaled trees ...
Melanie J. Hopkins, Mark C. Nikolic, James D. Holmes, Daniela S. Monti, Ernesto E. Vargas‐Parra, Russell D.C. Bicknell, Gregory D. Edgecombe, Katherine Jordan‐Burmeister, John R. Paterson, Shravya Srivastava‐Losey   +9 more
wiley   +1 more source

Rising Strong: Cultivating Resilience in Edible City Entrepreneurship. Insights Into the Landscape of Urban Food Initiatives

Business Strategy and the Environment, EarlyView.
ABSTRACT In response to growing global challenges, this study explores how social entrepreneurship within the Edible City movement contributes to building resilient, sustainable, and equitable urban food systems. Drawing on semistructured interviews with over 70 stakeholders across five cities—Berlin, Andernach, Oslo, Rotterdam, and Havana—we ...
Ina Säumel, Stephanie Ligan, Alice Bischof, Edi Emilov Ivanov, Laura Martinez‐Izquierdo, Sara Noémie Plassnig, Marisa Pettit   +6 more
wiley   +1 more source

Current Trends and Future Research in Management Control for Sustainability in Retail

Business Strategy and the Environment, EarlyView.
ABSTRACT The growing emphasis on sustainability in the retail sector, driven by regulatory frameworks, market trends and consumer demand, has placed management control at the forefront of facilitating sustainability practices. Despite increasing academic interest in this area, the literature is fragmented and provides limited sector‐specific insight ...
Miguel Gil, Mart Ots, Timur Uman
wiley   +1 more source

The development of rail-head acoustic roughness

, 2009
A model of the development of rail-head acoustic roughness on tangent track has been formulated. The model consists of a two-dimensional time domain wheel-rail interaction force calculation, with the normal force used as the input to a two-dimensional ...
Croft, Briony Elizabeth
core  

Some remarks on particle size effects on the abrasion of a range of Fe based alloys

, 2010
The low-stress three body abrasion behaviour of a range of steels was investigated. The tests were carried out in a rubber wheel tester (according to ASTM G65-94, reapproved in 2000) at room temperature.
Stack, Margaret, Chacón-Nava, José G., Cabral-Miramontes, J.A., Martínez-Villafañe, Alberto, Stack, M.M., Chacon-Nava, J. G., Martinez-Villafañe, A., Almeraya-Calderon, F.   +7 more
core   +1 more source

Investigation on hard‐rock breaking performance and auxiliary mechanism of picks assisted with both‐sided high‐pressure water jets

Deep Underground Science and Engineering, EarlyView.
This paper investigates the high‐pressure water jet‐pick combined rock‐breaking mode (HPC), which employs high‐pressure water jets to precut grooves on both sides of the picks. The rock‐breaking patterns and performance of the HPC method are obtained, and the auxiliary rock‐breaking mechanism of water jet grooving is revealed.
Jingjing Lu, Jiancheng Xiao, Hui Zhou, Xiao Ma, Congcong Hou, Jian Cui, Fujian Yang   +6 more
wiley   +1 more source