Results 131 to 140 of about 36,916 (301)

齿根裂纹与轮齿啮合刚度关联规律研究

open access: yesJixie chuandong, 2014
Gear mesh stiffness is the foundation of the study on gear dynamics.Taking the spur gear as research object,the finite element model of the spur gear with root crack is established,and the accurate calculation method of gear mesh stiffness is proposed ...
唐进元   +3 more
doaj  

Maximum life spur gear design [PDF]

open access: yes
Optimization procedures allow one to design a spur gear reduction for maximum life and other end use criteria. A modified feasible directions search algorithm permits a wide variety of inequality constraints and exact design requirements to be met with ...
Coe, H. H.   +3 more
core   +1 more source

Regulatory Framework and Public Policies for Sustainability in the Construction Sector

open access: yesSustainable Development, EarlyView.
ABSTRACT This study analyzes the role of public policies in promoting socially responsible practices in the construction sector, with a particular focus on their contribution to climate neutrality and the decarbonization of the building stock. European agreements exert increasing pressure to transform the construction sector, reinforcing the transition
Olga González‐Morales   +3 more
wiley   +1 more source

Gearing [PDF]

open access: yes
Gearing technology in its modern form has a history of only 100 years. However, the earliest form of gearing can probably be traced back to fourth century B.C. Greece. Current gear practice and recent advances in the technology are drawn together.
Coy, J. J.   +2 more
core   +1 more source

Connecting Health Promotion and Sustainable Development Goals to Enhance the Health of Agrifood Temporary Migrant Workers—a Scoping Review

open access: yesSustainable Development, EarlyView.
ABSTRACT Temporary migrant workers (TMW) in the agrifood system face social determinants of health (SDoH) that contribute to health inequities. Despite their dual residency, the potential of the Sustainable Development Goals (SDG) to support the health of TMW remains underexamined.
Théa Demmers   +4 more
wiley   +1 more source

Advancing Sustainable Development Through Exports of Clean Energy Products From Emerging Asian Economies: A Poisson Pseudo Maximum Likelihood Estimation Approach

open access: yesSustainable Development, EarlyView.
ABSTRACT The promotion of clean energy is critical to achieving sustainable development. This study investigates the factors that affect the exports, trade potential, and revealed comparative advantage (RCA) of clean energy products (CEPs) in the emerging Asian economies (EAEs).
Arvind Goswami   +2 more
wiley   +1 more source

Security Shaping Sustainability: The Difference Between Securitized and Community‐Based Conservation in Benin

open access: yesSustainable Development, EarlyView.
ABSTRACT As global conservation efforts intensify, balancing environmental protection with social sustainability has become increasingly urgent. This study employs a comparative case study approach to examine two natural resource management interventions in northern Benin: one led by African Parks in an insecure zone, and another by TMG Research in a ...
Ramoudane Orou Sannou   +1 more
wiley   +1 more source

Effect of shot peening on surface fatigue life of carburized and hardened AISI 9310 spur gears [PDF]

open access: yes
Surface fatigue tests were conducted on two groups of AISI 9310 spur gears. Both groups were manufactured with standard ground tooth surfaces, with the second group subjected to an additional shot peening process on the gear tooth flanks.
Townsend, D. P., Zaretsky, E. V.
core   +1 more source

Dynamics of a split torque helicopter transmission [PDF]

open access: yes, 1992
A high reduction ratio split torque gear train has been proposed as an alternative to a planetary configuration for the final stage of a helicopter transmission. A split torque design allows a high ratio of power-to-weight for the transmission.
Krantz, Timothy, Rashidi, Majid
core   +2 more sources

Micro‐transitions and work identity: The case of academic entrepreneurs

open access: yesStrategic Entrepreneurship Journal, EarlyView.
Abstract Research Summary This paper examines how academic entrepreneurs—scientists who found research‐based startups while remaining in academia—construct and sustain their professional identities amid frequent transitions between academic and entrepreneurial roles.
Marouane Bousfiha, Henrik Berglund
wiley   +1 more source

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