Results 111 to 120 of about 23,834 (285)

Efficiency testing of a helicopter transmission planetary reduction stage [PDF]

open access: yes
A parametric study of the efficiency of a 310-kW (420-hp) helicopter transmission planetary test section (four planets) was performed. The purpose was to determine the planetary contribution to the overall transmission power loss.
Handschuh, Robert F., Rohn, Douglas A.
core   +1 more source

Model based wind turbine gearbox fault detection on SCADA data [PDF]

open access: yes, 2014
Developing effective wind turbine fault detection algorithm is not only meaningful for improving wind turbine reliability but also crucial for future intelligent wind farm operation and management.
Cao, Mengnan   +6 more
core  

Ecosystem‐Centered Robot Design: Toward Ecoresorbable Sustainability Robots (ESRs)

open access: yesAdvanced Science, EarlyView.
Robots exploring natural ecosystems can support monitoring and conservation, but must adopt ecosystem‐centered design to avoid pollution, waste, and damage. This review proposes guidelines for co‐designing ecoresorbable sustainability robots (ESRs), uniting materials, robotics, and ecological contexts in a single framework.
Tülin Yılmaz Nayır   +4 more
wiley   +1 more source

Dealing With Good Management [PDF]

open access: yes, 1989
[Excerpt] Andy Banks\u27 and Jack Metzgar\u27s analysis of current cooperation programs is right on the mark. Their insistence on an organizing conception of unionism, union structures independent of management, and the use of worker knowledge as a ...
Parker, Mike, Slaughter, Jane
core   +1 more source

A Hydrodynamic Bioreactor for High‐Yield Production of Extracellular Vesicles from Stem Cell Spheroids with Defined Cargo Profiling

open access: yesAdvanced Science, EarlyView.
This study harnesses hydrodynamic flows to generate, confine and stimulate stem cell spheroids, enabling the large‐scale production of extracellular vesicles (EVs). This innovative method not only streamlines spheroid formation and subsequent EV release in a single, integrated process, but also ensures the generation of EVs with enhanced biological ...
Solène Lenoir   +7 more
wiley   +1 more source

Microenvironment Self‐Adaptive Nanoarmor to Address Adhesion‐ and Colonization‐Related Obstacles in Impaired Intestine Promote Bacteriotherapy Against Parkinson's Disease

open access: yesAdvanced Science, EarlyView.
A microenvironment self‐adaptive nanoarmor is developed to effectively address the adhesion‐ and colonization‐related challenges posed by multiple physiological and pathological characteristics in the intestine. L. plantarum@MPN@CS showed significant therapeutic potential in treating Parkinson's disease (PD), a model for extraintestinal disorders, as ...
Limeng Zhu   +6 more
wiley   +1 more source

Advanced gearbox technology [PDF]

open access: yes
An advanced 13,000 HP, counterrotating (CR) gearbox was designed and successfully tested to provide a technology base for future designs of geared propfan propulsion systems for both commercial and military aircraft.
Anderson, N. E.   +3 more
core   +1 more source

Targeting Itga8 Mitigates Neurogenic Bladder Fibrosis Driven by Trem2⁺ Macrophage‐Derived Fn1 via FAK/RhoA/ROCK Signaling

open access: yesAdvanced Science, EarlyView.
Normal bladders exhibit quiescent fibroblasts/macrophages, whereas neurogenic bladders show acute‐phase Itga8⁺ fibroblast expansion driven by Trem2⁺ macrophage‐secreted Fn1, which activates FAK/RhoA/ROCK signaling, promotes cytoskeletal remodeling, and upregulates pro‐fibrotic genes.
Jiaxin Wang   +9 more
wiley   +1 more source

Study on the Oil Distribution and Churning Loss in the Rotation of a Planetary Gear Train

open access: yesJixie chuandong
A splash lubrication simulation model of a planetary gear train was established based on the moving particle semi-implicit (MPS) method, and it was verified by experiments to explore the splash lubrication behavior of the planetary transmission.
Chen Huixiao   +7 more
doaj  

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