Results 61 to 70 of about 905,211 (126)

Circling the Archetype: Tensions Limiting the Transformation to a Circular Economy

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This research examines key tensions and the archetypal paradox that prevent the transformation to a circular economy (CE) across individual, organizational, and systems levels, problematizing CE assumptions. Tension manifestations are analyzed using a qualitative case study across eight diverse industries and geographies.
Helleke Heikkinen   +5 more
wiley   +1 more source

Analysis of the Engagement Characteristic Between Plastic Worm and Steel Helical Gear and its Experimental Research

open access: yesJixie chuandong, 2017
The 3 D model of worm and helical gear is established based on UG by the equation of tooth surface and the data point. On the basis of Hyper Mesh,the pretreatment of the finite element model including mesh generation,applying constrains,setting contact ...
Li Chuanshan, Liang Dong, Chen Bingkui
doaj  

Study of the Effect of Regulating Alloying Elements and Optimizing Heat Treatment Processes on the Microstructure Properties of 20MnCr5 Steel Gears

open access: yesLubricants
To optimize heat treatment of gears for high-end equipment and enhance their fatigue resistance, this paper studied the effects of Al, Mn and Cr content on surface microstructure, i.e., martensite, retained austenite, grain size, hardened layer depth and
Li Luo   +6 more
doaj   +1 more source

How Circular Innovation Is Learned: A Process Study of Modularity‐Based Initiatives in Industrial Firms

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Circular innovation (CI) research has identified a wide range of circular strategies and design approaches, yet offers limited insight into how CI evolves as a learning process within firms and which governance mechanisms guide this progression. Drawing on organizational learning (OL), this study examines how exploration and exploitation shape
Shamima Haque   +2 more
wiley   +1 more source

Increasing Durability of Driving Axle Elements of MAZ Automobiles by Means of Various Thermal and Chemical-Thermal Treatment

open access: yesМеханика машин, механизмов и материалов, 2010
The paper analyzes conditions and main reasons for destruction of main gear and wheel reduction gear of driving axles in MAZ automobile. A mathematical model of stress of bevel drive teeth has been developed; the reasonability of improving their thermal ...
A.I. Mikhlyuk   +2 more
doaj  

Bifurcation analysis of nose landing gear shimmy with lateral and longitudinal bending [PDF]

open access: yes, 2009
We develop and study a model of an aircraft nose landing gear with torsional, lateral and longitudinal degrees of freedom. The corresponding three modes are coupled in a nonlinear fashion via the geometry of the landing gear in the presence of a nonzero ...
Thota, P   +5 more
core   +1 more source

Evaluation of Pervaporation and Nanofiltration Membranes for Water Recovery From Thermo‐Responsive Draw Solution

open access: yesChemie Ingenieur Technik, EarlyView.
Integrating thermo‐responsive draw solutions with suitable water‐recovery technologies could enable more efficient hybrid desalination. This study compares pervaporation and nanofiltration, revealing key trade‐offs between water productivity and polymer retention and providing guidance for future FO‐based brine treatment systems.
Nadin Al‐Jariry   +9 more
wiley   +1 more source

Research Progress in Gear Steels for High Temperature Carburization

open access: yesTeshugang, 2013
The carburizing temperature of common gear steels is 930 °C, as the carburizing temperature of steel increases to 1 000 ~ 1 050 °C the time of carburization process can be remarkably reduced but it easily leads to grain coarsening.
杨延辉, 王毛球, 陈敬超, 董瀚
doaj  

Analysis of the Regulatory Framework for the CCU Technology

open access: yesChemie Ingenieur Technik, EarlyView.
ABSTRACT Carbon capture and utilisation (CCU) is increasingly considered an important technology for achieving climate neutrality within the German and European legal framework. Recent developments, particularly the Carbon Dioxide Storage and Transport Act (KSpTG), aim to enable CO2 transport infrastructure and cross‐sector carbon management systems ...
Sophie Schmengler   +2 more
wiley   +1 more source

Effect of Warm-Forging and Isothermal Normalizing on Austenite Grain Size of Carburized and Quenched Gear Steel 20CrMnTiH3

open access: yesTeshugang, 2016
The effect of process of warm-forging at 880 ~ 930 °C on growth of austenite grain of gear steel 20CrMnTiH3 is analyzed by examination of physicochemistry and original material austenite grain size to get that the austenite of steel is easy abnormally ...
白瑞娟   +5 more
doaj  

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