Results 141 to 150 of about 127,932 (307)

Advanced continuously variable transmissions for electric and hybrid vehicles [PDF]

open access: yes
A brief survey of past and present continuously variable transmissions (CVT) which are potentially suitable for application with electric and hybrid vehicles is presented. Discussion of general transmission requirements and benefits attainable with a CVT
Loewenthal, S. H.
core   +1 more source

Synthesis and Characterization of Ag–Fe Bimetallic Nanoparticles and Nanocomposites (Alloys and Core–Shells) for Photocatalytic Degradation of Bromophenol Blue Dye Using Grewia optiva Leaf Extract

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Ag–Fe bimetallic nanoparticles (alloy and core–shell structures) were synthesized using Grewia optiva leaf extract through a green, phytochemical‐mediated approach. The effects of pH, temperature, extract concentration, and Ag:Fe molar ratio on nanoparticle formation were systematically optimized, enabling size‐controlled and morphologically ...
Sehrish Asad   +6 more
wiley   +1 more source

Rotor systems research aircraft predesign study. Volume 4: Preliminary draft detail specification [PDF]

open access: yes
The RSRA requirements are presented in a detail specification format. Coverage of the requirements includes the following headings: (1) aircraft characteristics, (2) general features of design and construction, (3) aerodynamics, (4) structural design ...
Linden, A. W., Miller, A. N.
core   +1 more source

New opportunities for bioscaffold‐enabled spinal cord injury repair

open access: yesBMEMat, EarlyView.
Schematic illustration of bioscaffolds for spinal cord injury repair. We summarize the effects of bioscaffold properties on SCI repair, highlight different types of bioscaffolds, various fabrication strategies, and in vivo transformations for the clinical development of SCI‐repairing bioscaffolds.
Xiaoqing Qi   +11 more
wiley   +1 more source

Subterranean environments contribute to three‐quarters of classified ecosystem services

open access: yesBiological Reviews, EarlyView.
ABSTRACT Beneath the Earth's surface lies a network of interconnected caves, voids, and systems of fissures forming in rocks of sedimentary, igneous, or metamorphic origin. Although largely inaccessible to humans, this hidden realm supports and regulates services critical to ecological health and human well‐being.
Stefano Mammola   +30 more
wiley   +1 more source

How Supply Networks Influence Sustainable Innovation: Evidence From Ghana's Public Works Procurement

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Recent environmental and sustainability standards in procurement increase short‐term production and operational costs to suppliers, which are often recouped by charging price premiums for innovative solutions. However, public buyers are less likely to pay such price premiums, resulting in a disincentive among suppliers to bid for innovation ...
Peter Adjei‐Bamfo   +5 more
wiley   +1 more source

基于PRO/E和ADAMS的摆动液压缸建模及动力学仿真

open access: yesJixie chuandong, 2010
The structural design and operation principle of rotary hydraulic cylinder are introduced.Using Pro/E software,double-helix transmission model for 60°,50°,40°and 30° thread angle are established.through the interface module Mechanism/Pro of Pro/E and ...
李松柏   +3 more
doaj  

On variable hydrostatic transmission for road vehicles, powered by supply of fluid at constant pressure [PDF]

open access: yes
Various hydrostatic power transmission systems for automotive applications with power supply at constant pressure and unrestricted flow and with a Volvo Flygmotor variable displacement motor as the principal unit were investigated.
Andersson, I.   +3 more
core   +1 more source

Elucidating the Interplay Between Structure and Electrochemical Behavior in Lignin‐Based Polymer Electrolytes for Potassium Batteries

open access: yesBattery Energy, Volume 4, Issue 2, March 2025.
Three biobased membranes are synthesized by crosslinking oxidized Kraft lignin with poly(ethylene glycol) diglycidyl ether of increasing molecular weights. After incorporation of solvated potassium salts, potassium batteries including these biobased gel polymer electrolytes are able to deliver a maximum specific capacity at 0.05 A g−1 as high as 130 ...
Giuseppe Pascuzzi   +5 more
wiley   +1 more source

Fractal Anatomy of Human Organs: A Narrative Review of Structure, Function, and Clinical Perspectives

open access: yesClinical Anatomy, EarlyView.
ABSTRACT Fractal geometry describes complex, self‐similar patterns that repeat across spatial scales and is increasingly recognized as relevant in anatomical research. Indeed, the fractal organization is consistently observed in respiratory, cardiovascular, gastrointestinal, nervous, renal, hepatic, and dermatological systems.
Immacolata Belviso   +7 more
wiley   +1 more source

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