Results 201 to 210 of about 33,641 (337)

Planetary Gear Fault Diagnosis via Feature Image Extraction Based on Multi Central Frequencies and Vibration Signal Frequency Spectrum. [PDF]

Sensors (Basel), 2018
Li Y, Cheng G, Pang Y, Kuai M.
europepmc   +1 more source

An analytical method for designing low noise helicopter transmissions [PDF]

The development and experimental validation of a method for analytically modeling the noise mechanism in the helicopter geared power transmission systems is described. This method can be used within the design process to predict interior noise levels and
Bossler, R. B., Jr., Bowes, M. A., Royal, A. C.   +2 more
core   +1 more source

Evolutionary Analysis of Tooth Cracks in Planetary Gear Systems

LEI Zhen, JIANG Hong, ZHANG Xiangfeng, LI Jun, KONG Yiyi, BAI Yu   +5 more
openalex   +1 more source

Potential Impacts of Climate Interventions on Marine Ecosystems

Reviews of Geophysics, Volume 64, Issue 1, March 2026.
Abstract Rising global temperatures pose significant risks to marine ecosystems, biodiversity, and fisheries. Recent comprehensive assessments suggest that large‐scale mitigation efforts to limit warming are falling short, and all feasible future climate projections, including those that represent optimistic emissions reductions, exceed the Paris ...
Kelsey E. Roberts, Tyler Rohr, Morgan R. Raven, Michael S. Diamond, Daniele Visioni, Ben Kravitz, Ryan Heneghan, Colleen M. Petrik, Daniele Bianchi, Kelly Ortega‐Cisneros, Monica A. Morrison, Vanessa van Heerden, Nicola A. Wiseman, Gouri Anil, Zachary J. Cannizzo, Marta Coll, Joshua Coupe, Ryan Freedman, Kristen Krumhardt, Lester Kwiatkowski, Nicole S. Lovenduski, Jessica Y. Luo, Holly C. Olivarez, Alan Robock, Jeroen Steenbeek, Cheryl S. Harrison   +25 more
wiley   +1 more source

The effect of floating spline parameter on the dynamic characteristic of encased differential planetary gear train. [PDF]

Sci Rep
Che X, Yu H, Zhang C, Zhu R.
europepmc   +1 more source

Rotor instability due to a gear coupling connected to a bearingless sun wheel of a planetary gear [PDF]

A 21 MW electric power generating unit comprises a gas turbine, a planetary gear, and a generator connected together by gear couplings. For simplicity of the design and high performance the pinion of the gear has no bearing.
Buehlmann, E. T., Luzi, A.
core   +1 more source

African Decolonial Theory: A Conversation

Antipode, Volume 58, Issue 2, March 2026.
Abstract Antipode has become a key platform for engaging with decolonial and anticolonial scholarship, as well as adjacent fields such as Black geographies, Indigenous studies, Latin American feminism, and work on settler‐colonialism. African reference points in this literature, however, have been far less common, both in the journal and more broadly ...
Patricia Daley, Sabelo J. Ndlovu‐Gatsheni, Wangui Kimari, Franklin Obeng‐Odoom, Sylvia Tamale, Sybille Bauriedl, Sylvia Bawa, Inken Carstensen‐Egwuom, Grace Adeniyi‐Ogunyankin, Yousuf Al‐Bulushi, Stefan Ouma   +10 more
wiley   +1 more source

Compound Fault Characteristic Analysis for Fault Diagnosis of a Planetary Gear Train. [PDF]

Sensors (Basel)
Ren Y, Li G, Li X, Zhang J, Liu R, Shi S.   +5 more
europepmc   +1 more source

Clutchless multiple drive source for output shaft [PDF]

A first shaft is connected to a source of rotational power and has a gear fixedly mounted on the shaft. A second gear is fixedly mounted on a gear shaft that is parallel to the first shaft.
Webster, L. D.
core   +1 more source

Marine Mammals in the Anthropocene: Developing a Systematic Evidence Base of Threats to Nineteen Species

Mammal Review, Volume 56, Issue 1, March 2026.
Marine mammals are vulnerable to a variety of anthropogenic threats, yet a global systematic map of the literature for 19 species found both spatial and temporal disparity in research effort between threats and between species. There are knowledge gaps for species and threats, with effort unequal across many species' ranges.
Emily L. Hague, Rachael R. Sinclair, Joanna L. Kershaw, Davina Derous, Ross M. Culloch, Carol E. Sparling, Nicholas Baker‐Horne, Marija Sciberras, Teresa F. Fernandes, Lauren H. McWhinnie   +9 more
wiley   +1 more source