Results 81 to 90 of about 1,920 (258)

Modeling and Analysis of Thermal Elastohydrodynamic Lubrication Characteristic of Asymmetric Gear with a Small Number of Teeth

Jixie chuandong, 2016
The asymmetric gear with a small number of teeth has the advantages of small size,large transmission ratio and high load capacity and so on,it is more and more widely used in various fields.
Deng Xianzhi
doaj  

From Blue Economy to Blue Marketing: Linking Consumer Engagement and Corporate Strategy for Ocean Sustainability—Theoretical Foundations and Propositions

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Blue economy advocates the sustainable use of marine resources while fostering economic growth and environmental preservation. Yet many business sectors still pursue extractive practices that undermine marine ecosystems and disregard consumers' sensitivity.
Maria Irene Prete, Antonio Mileti, Diego Gabriele Coppola   +2 more
wiley   +1 more source

Stakeholder Engagement and SDGS Disclosure: A Systematic Review on Corporate Strategies

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT The 2030 Agenda and its Sustainable Development Goals (SDGs) emphasize the importance of sustainability, prompting stakeholders to demand greater transparency from organizations. Understanding how to incorporate the SDGs into their strategies and effectively engage with stakeholders in this process is essential for organizations to navigate ...
Alice Loureiro, Sónia Monteiro, Cristina Aibar‐Guzmán   +2 more
wiley   +1 more source

An analytical approach for predicting the fillet and contact stresses in symmetric and asymmetric spur gears under frictional mesh assumptions

Results in Engineering
A precise estimation of the bending and contact stresses, as well as the true friction value during the gear mesh, are critical aspects of a cost-effective and safe gear design.
Ahmed A. Toman, Mohammad Q. Abdullah
doaj   +1 more source

Seismic analysis and design of tunnels within fault ground: A review

Deep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang, Yujing Jiang, Xuepeng Zhang, Yuyong Jiao, Ningbo Li, Xiao Wang, Bo Li   +6 more
wiley   +1 more source

Novel Zwitterionic Polydopamine Nanofiller‐Reinforced Hybrid Membranes With Superior Antifouling Performance for Wastewater Treatment

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This work reports one‐pot synthesized novel zwitterionic polydopamine‐silica (ZSiPDA) nanofillers for fabricating PES hybrid ultrafiltration membranes with enhanced hydrophilicity, permeability, and antifouling performance. The optimized membrane achieved over 91% humic acid removal and showed strong potential for municipal wastewater treatment.
Roqaya A. Ismail, Mahendra Kumar, Tarek Lemaoui, Inas M. AlNashef, Shadi W. Hasan, Hassan A. Arafat   +5 more
wiley   +1 more source

Exact Solution of Mesh Stiffness and Analysis of Tooth Profile Parameters for Asymmetric Gear Pairs

Jixie chuandong
Asymmetric gears are a new type of involute gears with different pressure angles on each side of a gear tooth. Gear tooth profile parameters have a great influence on the performance of a gear pair, such as its tooth profile shape, motion characteristics,
Yang Yong, Hu Junhua, Shi Zhiqi, Zhou Qinghua, Wu Jian   +4 more
doaj  

Ocean Governance and Marine Conservation: Institutional Work as a Lever for Ocean Sustainability

Environmental Policy and Governance, EarlyView.
ABSTRACT Ocean governance presents one of the most complex environmental policy challenges of our time, requiring coordinated action across multiple scales, sectors and stakeholder groups. This paper applies institutional work theory to systematically examine how actors create, maintain and disrupt the governance arrangements underpinning ocean ...
Kedar Uttam, Kristjan Jespersen, Paige Olmsted, Katryn Pasaribu   +3 more
wiley   +1 more source

Computerized Generation of Nonstandard and Asymmetric Involute Spur Gears Based on Rack Cutter Parametric Tracing

Journal of Engineering
In the field of gear design, to apply any form of analysis (such as FEA, dynamic, and stress analyses), a delicate and accurate representation of the gear geometry is essential.
Ahmed A. Toman, Mohammad Q. Abdullah
doaj   +1 more source

Reduction of contact stresses using involute gears with asymmetric teeth [PDF]

Scientific Journal of Silesian University of Technology. Series Transport, 2015
Asymmetrical involute gears have a different value of the operating pressure angle for right and left side of the gear. These teeth are suitable for one direction of rotation. Such teeth enable to change the length of the generating line.
Jarmila VOJTKOVÁ
doaj