Results 71 to 80 of about 180,335 (290)

Numerical and Experimental Analysis of the Gear Size Influence on Density Variations and Distortions during the Manufacturing of PM Gears with an Innovative Powder Processing Route Incorporating HIP

open access: yesJournal of Manufacturing and Materials Processing, 2018
The paper is the result of research intended to develop a process route for the manufacturing of powder metallurgical (PM) gears for application in transmissions units for heavy duty powertrain applications.
Alireza Khodaee, Arne Melander
doaj   +1 more source

Improvement in surface fatigue life of hardened gears by high-intensity shot peening [PDF]

open access: yes
Two groups of carburized, hardened, and ground spur gears that were manufactured from the same heat vacuum induction melted vacuum arc melted (VIM VAR) AISI 9310 steel were endurance tested for surface fatigue.
Townsend, Dennis P.
core   +1 more source

Evaluating the Utilities of Foundation Models in Single‐Cell Data Analysis

open access: yesAdvanced Science, EarlyView.
This study delivers the first systematic, task‐level evaluation of single‐cell foundation models across eight core analytical tasks. By benchmarking 10 leading models with the scEval framework, it reveals where foundation models truly add value, where task‐specific methods still dominate, and provides concrete, reproducible guidelines to steer the next
Tianyu Liu   +4 more
wiley   +1 more source

On the Origins of Toughness in Corymbia calophylla (Marri Tree) Nuts

open access: yesAdvanced Science, EarlyView.
We uncover the natural toughening mechanisms of the marri nut, including fiber pullout, crack deflection, and a viscoelastic matrix, which enable exceptional energy absorption and ductility comparable to Teflon, with an elastic modulus similar to acrylic.
Wegood M. Awad   +7 more
wiley   +1 more source

ASSESMENT OF DYNAMIC LOAD OF THE GEAR ACCOUNTING INTERSTAGE COUPLING IN RESPECT OF ISOLATED STAGES [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2014
In the article presented and discussed were results from investigations performed on dynamic model of two-stage gear. A number of course features of dynamic coefficient value KV in the function of rotational speed of gear input shaft were shown. Compared
Mariusz KUCZAJ, Antoni SKOĆ
doaj  

A Life Study of Ausforged, Standard Forged and Standard Machined AISI M-50 Spur Gears [PDF]

open access: yes
Tests were conducted at 350 K (170 F) with three groups of 8.9 cm (3.5 in.) pitch diameter spur gears made of vacuum induction melted (VIM) consumable-electrode vacuum-arc melted (VAR), AISI M-50 steel and one group of vacuum-arc remelted (VAR) AISI 9310
Bamberger, E. N.   +2 more
core   +1 more source

A Nanoparticle‐Integrated Complete Manufacturing Pipeline of Chemically Engineered Exosomes

open access: yesAdvanced Science, EarlyView.
We report a novel manufacture technology of chemically engineered exosomes. The four steps of manufacturing, i.e., biogenesis, loading, isolation, and storage, are integrated by the use of a nanoparticle. The manufacture technology incorporates three innovative components, i.e., a new nano‐bio effect, a new composite nanoparticle, and a new isolation ...
Xiaowei Wen   +13 more
wiley   +1 more source

Cryogenic gear technology for an orbital transfer vehicle engine and tester design [PDF]

open access: yes
Technology available for gears used in advanced Orbital Transfer Vehicle rocket engines and the design of a cryogenic adapted tester used for evaluating advanced gears are presented.
Calandra, M., Duncan, G.
core   +1 more source

A Soft Robotic Model for Simulating Heart Valve Disease and Cardiac Interventions

open access: yesAdvanced Science, EarlyView.
This paper introduces a fully synthetic fabrication methodology for a soft robotic, in‐vitro model of the left‐heart, complete with a functioning mitral valve apparatus. With a view towards patient‐specific modeling, we demonstrate physiological flow and pressure waveforms, tunable mitral valve function with clinical imaging compatibility, and its use ...
James Davies   +14 more
wiley   +1 more source

Application Features of New Structural Steel 20KhN3MA for Large-Sized Case-Hardening Gears

open access: yesМеханика машин, механизмов и материалов, 2018
The paper gives an analysis and an assessment of the applicability of the most well-known grades of steels used for making large-sized case-hardening gears.
Pyotr A. Vityaz   +4 more
doaj  

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