Results 11 to 20 of about 83 (79)

Modelling, design and analysis of offset, non-orthogonal and profile-shifted face gear drives

Advances in Mechanical Engineering, 2018
This article proposes the application of a profile-shifted grinding disc to generate an offset, non-orthogonal and profile-shifted face gear. A detailed investigation of the modelling, tooth geometry and contact characteristics of the offset, non ...
Xuezhong Fu, Zongde Fang, Yanmei Cui, Xiangying Hou, Jianhua Li   +4 more
doaj   +1 more source

Influence of Error Factors on Transmission Contact for Spiral Bevel Gears

Jixie chuandong, 2023
The full tooth flank contact characteristic of the line contact spiral bevel gear transmission is sensitive to errors. To obtain the influence of error factors on transmission contact for line contact spiral bevel gears, the contact simulation analysis ...
Wang Mingyang, Li Shuwen, Sun Yuehai
doaj  

Actuation Strategies for Underwater Jet‐Propelled Soft Robots

Journal of Field Robotics, EarlyView.
ABSTRACT This review article examines jet‐propulsion mechanisms in underwater soft robotic systems, focusing exclusively on physically fabricated and experimentally validated robots. Covering research published from 2013 to 2025, this study classifies and evaluates jet‐propulsion robots based on their actuation mechanisms.
Angel Kitone, Mohammed Anteet, Pawandeep S. Matharu, Yara Almubarak   +3 more
wiley   +1 more source

Hidden Costs of Ethical Fashion: Sustainable Development Goals and Garment Worker Exploitation in Bangladesh

Sustainable Development, EarlyView.
ABSTRACT Across garment factories in the Global South, the promise of “ethical fashion” coexists with poverty wages and retaliation. This study examines why the global call for decent work has not improved labor conditions in Bangladesh's ready‐made garment industry.
Md. Rafiqul Islam Rana
wiley   +1 more source

AGRICULTURE IN A SOCIALIST CITY: Towards an Alter‐Urban Political Ecology

International Journal of Urban and Regional Research, EarlyView.
Abstract Urban political ecology has developed as a critique of capitalist urbanization. This article develops the concept of alter‐urban political ecology to define urban environments emerging not from capitalist urbanization but from efforts to transform it. Drawing on archival research and ethnographic fieldwork in five urban farms in socialist Cuba,
Gustav Cederlöf
wiley   +1 more source

Role of funders in embedding tests in conservation practice

Conservation Biology, EarlyView.
Abstract Effective conservation practice requires decisions based on reliable and relevant evidence, but significant gaps in the evidence base exist. Incorporating well‐designed tests of the effectiveness of interventions for biodiversity in conservation projects is one of the best ways to scale up the rate of evidence generation.
Rebecca K. Smith, Nancy Ockendon, Nida Al‐Fulaij, Alessandro Badalotti, Rachel Beattie, James Byrne, Sophia Cooke, Tiago de Zoeten, Winifred F. Frick, Stephan M. Funk, Douglas Gibbs, Lauren Gupta, Tatiana Hendrix, Becky Holmes, Nicola Johnstone, James Kinghorn, Simon Mickleburgh, Florence Miller, Matthew Muir, Jacob R. Owens, Danni Parks, Victoria Reilly‐Pinion, Hannah Reid, Kevin Seely, Julien Semelin, Taylor Shaw, Ruth D. Swetnam, Lisa Wheeler, William J. Sutherland   +28 more
wiley   +1 more source

Research on noise reduction of drive axle hypoid gear based on tooth surface mismatch modification

Advances in Mechanical Engineering
In order to reduce the transmission noise of drive axle hypoid gear, a method of tooth surface mismatch modification was proposed. Firstly, on the basis of establishing the grinding mathematical model of hypoid gear with cutter tilt, the theoretical ...
Shaowu Nie, Jinyu Chen, Shaohang Liu
doaj   +1 more source

Benefitting from brutality? Profits of north‐western Europe's slave trade at the eve of the industrial revolution

The Economic History Review, EarlyView.
Abstract One of the most contentious issues in the study of the Atlantic slave trade is the profitability of the trade. In this paper, we contribute by pooling all available data on transatlantic slave ship voyage accounts into a joint dataset. This dataset includes data from a period of 100 years (1730–1830) and from five nations (Denmark, France ...
Klas Rönnbäck, Guillaume Daudin, Gerhard de Kok, David Richardson, Miguel Geraldes Rodrigues   +4 more
wiley   +1 more source

On the Mutual Relation Between Contact Ratio and Crack Propagation in the Tooth Root of Spur Gears

Fatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT This work investigates the mutual relationship between contact ratio and tooth root crack propagation in spur gears, with particular focus on the influence of meshing stiffness and load sharing on the tooth root lifetime. An experimental case study originally reported by Rettig, in which SN curves of gears with similar geometry but different ...
Lorenzo Valsecchi, Luca Bonaiti, Daniele Maffeis, Michael Geitner, Carlo Gorla, Karsten Stahl   +5 more
wiley   +1 more source

That sinkin’ feeling: Environmentally induced distress on a disappearing island

Medical Anthropology Quarterly, EarlyView.
Abstract Residents of Tangier Island, Virginia, a subsiding island in the Chesapeake Bay, embody psychosocial dimensions of environmental change. Analysis of ethnographic data shows islanders’ experiences and articulations of anxiety, panic, and despair as “that sinkin’ feeling,” resulting from the stress of living with the long‐term threat of imminent
Jonna Yarrington
wiley   +1 more source