Results 111 to 120 of about 129,116 (308)

ANALYSIS OF A ROLL BENDING MACHINE: ENHANCING EFFICIENCY AND FUNCTIONALITY

open access: yesJournal of Industrial Design and Engineering Graphics
: This study delves into the analysis of roll bending machines, which are indispensable in the sheet metal forming industry. The primary goal is to investigate the diverse characteristics and versions of roll bending machines available in the market and ...
Mongia GAAIA   +2 more
doaj   +2 more sources

基于液压控制双离合器动力传动系统振动研究

open access: yesJixie chuandong, 2014
For the vibration problem of dual clutch power transmission system,the models of the dual clutch power transmission system dynamics and the hydraulic control system are established,the control of the transient change of power transmission system in ...
阳彦雄
doaj  

Compensating linkage for main rotor control [PDF]

open access: yes, 1981
A compensating linkage for the rotor control system on rotary wing aircraft is described. The main rotor and transmission are isolated from the airframe structure by clastic suspension.
Huber, R. F., Jeffery, P. A. E.
core   +1 more source

Cobalt Single‐Atom Catalysts for Ultrafast Sulfamethoxazole Degradation: Unveiling the Chloride‐Ion‐Enhanced Formation of Co(IV)=O

open access: yesAdvanced Science, EarlyView.
An atomically dispersed Co–N4 single‐atom catalyst rapidly activates peroxymonosulfate to remove the antibiotic sulfamethoxazole from water. Common ions have little impact, but chloride dramatically speeds degradation by promoting a high‐valent Co(IV) = O oxidant via in situ HOCl–catalyst electron transfer.
Anting Ding   +6 more
wiley   +1 more source

Hierarchical Ordering Induced Ultrahigh Cryogenic Strength and Strain Hardening in a Ni2CoFeV Medium‐Entropy Alloy

open access: yesAdvanced Science, EarlyView.
A tri‐phase Ni2CoFeV medium‐entropy alloy with fcc, κ, and L12 phases achieves exceptional cryogenic strength‐ductility synergy at 77 K. It delivers a yield strength of 1.4 GPa, an ultimate tensile strength of 2.07 GPa and a tensile ductility of 28%.
Lei Gu   +4 more
wiley   +1 more source

Helicopter internal noise control: Three case histories [PDF]

open access: yes
Case histories are described in which measurable improvements in the cabin noise environments of the Bell 214B, 206B, and 222 were realized. These case histories trace the noise control efforts followed in each vehicle.
Cox, C. R., Edwards, B. D.
core   +1 more source

Tractor Test 1920: New Holland TT 75A [PDF]

open access: yes, 2008
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

Semi-analytical and numerical methods for computing transient waves in 2D acoustic / poroelastic stratified media

open access: yes, 2012
Wave propagation in a stratified fluid / porous medium is studied here using analytical and numerical methods. The semi-analytical method is based on an exact stiffness matrix method coupled with a matrix conditioning procedure, preventing the occurrence
Chiavassa, Guillaume   +3 more
core   +3 more sources

Investigation Into the Electrochemical Performance of Micron‐ and Nanosized Tin in Diglyme and Carbonate Electrolytes in Sodium Ion Batteries

open access: yesAdvanced Energy Materials, EarlyView.
This study compares Sn particles of different sizes in NIBs using carbonate‐ and diglyme‐based electrolytes. Diglyme electrolytes enable stable cycling despite large volume changes, while carbonate electrolytes degrade rapidly, especially with nanoparticles.
Chinnasamy Murugesan   +4 more
wiley   +1 more source

From continuous to interruptible distillation: Flexible electric heating column architecture with fast start‐up

open access: yesAIChE Journal, EarlyView.
Abstract Electrification of distillation offers a promising route to reducing scope‐1 emissions from one of the chemical industry's most energy‐intensive unit operations. However, conventional adiabatic columns are dynamically inflexible: Long, energy‐intensive start‐ups make shutdown and restart impractical under variable electricity prices and ...
Samuel Mercer, Michael Baldea
wiley   +1 more source

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