Results 81 to 90 of about 83,680 (310)

Multi‐material and dual‐stimulus coupled actuation micro‐gears for shape–rotation control in intelligent micro‐electro‐mechanical systems

open access: yesFlexMat, EarlyView.
A multi‐material and dual‐stimulus coupled actuation micro‐gear (MDCAMG) is developed via femtosecond‐laser 3D printing combined with magnetic nanoparticle absorption, enabling integrated environmental sensing and remote actuation at the microscale. The device incorporates a pH‐responsive hydrogel matrix for autonomous swelling/shrinking and a magnetic
Sida Peng, Shengzhi Sun, Jian Li, Yi Zhu
wiley   +1 more source

Integrated CFD-FEM approach for external gear pump vibroacoustic field prediction

open access: yesFrontiers in Mechanical Engineering
In this work, a three-dimensional fluid-structural and vibro-acoustics coupled model of a gear pump is presented. Gear pumps represent the majority of the positive displacement machines used for flow generation in fluid power systems.
Cristian Ferrari   +3 more
doaj   +1 more source

Performance of a vane driven-gear pump [PDF]

open access: yes
Given here are the results of a test conducted in a wind tunnel on the performance of a vane-driven gear pump used to pump gasoline upward into a small tank located within the upper wing from which it flows by gravity to the engine carburetor ...
Heald, R H
core   +1 more source

Test 2077: John Deere 6115M [PDF]

open access: yes, 2013
ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications ...
Nebraska Tractor Test Lab,
core   +1 more source

Exploring Belonging Through the Student Union: The Power of Familiar Faces and Comfortable Spaces

open access: yesNew Directions for Higher Education, EarlyView.
ABSTRACT Since their origin, college unions have played a significant role in fostering a sense of belonging and advancing the academic mission of colleges. However, published empirical studies remain scarce due to the focus of college union professionals’ work on both student development and facility operations.
Katheryn Paynter‐Fanning   +1 more
wiley   +1 more source

Active Design and Characteristic Analysis of Gear Pump with Low Pulsation

open access: yesJixie chuandong, 2017
In order to solve the problem of large flow ripple of gear pumps,an active design method for gear pumps with low flow pulsation is proposed. The basic design thought is to control the shape of the tooth profile by specifying the values of the flow ...
Cui Xiangbo, Luo Shanming, Wang Jian
doaj  

Theoretical Analysis for the Flow Ripple of a Tandem Crescent Pump with Index Angles

open access: yesApplied Sciences, 2017
This paper presents a theoretical approach for lowering the outlet flow ripple of a crescent pump by applying a tandem crescent pump consisting of two gear pairs with an index angle between them.
Hua Zhou   +3 more
doaj   +1 more source

Test 2125A: Case IH Magnum 340 [PDF]

open access: yes, 2015
ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications ...
Nebraska Tractor Test Lab,
core   +1 more source

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