Results 41 to 50 of about 324,906 (288)

Effect of timing and female quality on clutch size in the Collared Flycatcher Ficedula albicollis [PDF]

open access: yes, 2004
Capsule: Laying date and female age appear to be related to clutch size. Aims: To test two hypotheses ('date' and 'quality'), which might explain why fewer eggs are laid late in the season.
Tóth, László   +2 more
core   +1 more source

Effects of Radial Rectangle Groove Width on Temperature Field of Hybrid Vehicle Wet Multi-plate Clutch

open access: yesJixie chuandong, 2015
In order to solve the problems of higher friction temperature and short clutch life of hybrid vehicle wet multi- plate clutch,a hybrid vehicle wet multi- plate clutch is regarded as research subjects,the transient heat transfer model of wet clutch is ...
Li Dongbing
doaj  

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

open access: yesAdvanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich   +3 more
wiley   +1 more source

多片式湿式离合器接合过程湿振稳定性分析

open access: yesJixie chuandong, 2014
Aiming at the problem of the system vibration stability of the multi-plate wet clutch on engagement process,according to the working principle and engaging characteristics of the multiplate wet clutch,the mathematical model of a wet clutch system ...
张炜, 祝勇仁
doaj  

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

open access: yesAdvanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch   +3 more
wiley   +1 more source

Research on Wet Clutch Switching Quality in the Shifting Stage of an Agricultural Tractor Transmission System

open access: yesAgriculture, 2022
In order to improve the working quality of wet clutch switching in an agricultural tractor, in this paper, we took a power shift system composed of multiple wet clutches as the research object for full-factorial performance measurement, multi-factor ...
Yuting Chen, Zhun Cheng, Yu Qian
doaj   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

open access: yesAdvanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee   +7 more
wiley   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

open access: yesAdvanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara   +8 more
wiley   +1 more source

Effects of operating and material parameters on the thermal characteristics of a wet clutch

open access: yesAdvances in Mechanical Engineering, 2021
Based on the frictional mechanism of a wet clutch, frictional models of wet clutch engagement were established using the modified Reynolds equation and the elastic contact model between frictional pairs.
Zhigang Zhang   +4 more
doaj   +1 more source

Impact of MgO Additions on the Oxidation Resistance and Compression Behavior of Vanadium Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
An increase in oxidation resistance at 600 °C is achieved for alloys containing more than 2.5 wt.% MgO. It has been established that, along with V2O5, MgO6V2, and Mg2O7V2 are formed, which are presumed to enhance oxidative stability. Furthermore, the possible transformation of Mg‐vanadates through reaction with CO2, which presumably occurs in this ...
Ievgen Solodkyi   +5 more
wiley   +1 more source

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