Results 121 to 130 of about 128,076 (318)

Holistic Measurement of the Friction Behavior of Wet Clutches

open access: yesLubricants
The safe and efficient torque transmission of wet disk clutch systems requires high coefficients of friction. To achieve good controllability and high comfort, a positive slope of the coefficient of friction over sliding velocity is ensured by a ...
Patrick Strobl   +5 more
doaj   +1 more source

Bronchoscopy Robot with Enhanced Flexibility and Stability via Multi‐Segment Variable Stiffness Catheter

open access: yesAdvanced Intelligent Systems, EarlyView.
This work presents a magnetic bronchoscopy robot with a novel multi‐segment variable stiffness catheter. This catheter can not only move flexibly in the narrow bronchi but also harden according to the need to provide support. Combined with remote wireless magnetic field drive, it provides a more precise and effective solution for biopsy of deep lung ...
Shucong Yin   +10 more
wiley   +1 more source

A methodology for image-based measurement of plate movement in disengaged wet clutches

open access: yesScientific Reports
The drag loss behavior of a disengaged wet clutch is influenced, among other things, by the movement of the plates. Therefore, knowledge about the plate movement is essential for investigating and optimizing the drag loss behavior.
Lukas Pointner-Gabriel   +3 more
doaj   +1 more source

Efficiency of Bevel and Hypoid Gears—Test Rig Development and Experimental Investigations

open access: yesMachines
The efficiency of bevel and hypoid gears is, alongside load capacity, one of their most important design criteria. To consider the efficiency of bevel and hypoid gears during the development and design process, validated calculation methods based on ...
Lorenz Constien   +3 more
doaj   +1 more source

The rain feels different under the same umbrella: Experiences with poverty across LGBTQ subgroups

open access: yesAmerican Journal of Community Psychology, EarlyView.
Abstract Population‐based survey data have demonstrated that LGBTQ communities report varying rates of economic insecurity, yet very little research directly assesses how pathways into and experiences with poverty look different among subgroups at the intersections of sexual orientation and gender identity (SOGI).
Bianca D. M. Wilson, Lillian Nguyen
wiley   +1 more source

Influences of different parameters on selected properties of gears for robot-like systems

open access: yesFrontiers in Robotics and AI
For a drive unit for axes of robots and robot-like systems (RLS) usually a motor-gearbox arrangement is chosen due to its high-power density. The combination of a high-ratio gearbox and a high-speed electric motor ensures a very compact and efficient ...
Florian Oberneder   +5 more
doaj   +1 more source

Shimmy in a nonlinear model of an aircraft nose landing gear with non-zero rake angle

open access: yes, 2008
This work concentrates on the lateral oscillations in vehicles, also called shimmy, with a particular emphasis on aircraft. A mathematical model of a nose landing gear is discussed with geometric detail that has been mostly neglected in the past research.
Thota, P, Lowenberg, MH, Krauskopf, B
core  

Investigation on the sampling size optimisation in gear tooth surface measurement using a Co-ordinate Measuring Machine

open access: yes, 2004
Co-ordinate Measuring Machines (CMMs) are widely used in gear manufacturing industry. One of the main issues for contact inspection using a CMM is the sampling technique.
Cheng, K, Webb, D, Gao, CH
core   +1 more source

Per‐ and Polyfluoroalkyl Substances (PFAS) Exposure Profiles and Their Predictors in a Study of US Volunteer Firefighters

open access: yesAmerican Journal of Industrial Medicine, EarlyView.
ABSTRACT Introduction Firefighters may experience occupational exposure to per‐ and polyfluoroalkyl substances (PFAS). Volunteer firefighters make up 65% of the US fire service, but their serum PFAS profiles have not been well characterized. This study aims to (1) describe PFAS serum profiles among US volunteer firefighters from 9 states enrolled in ...
Katherine A. Lubina   +16 more
wiley   +1 more source

Home - About - Disclaimer - Privacy