Results 61 to 70 of about 43,457 (303)

The Technology Valley of Death of Circular Economy Solutions: A System Dynamics Simulation of Business Strategies for the Second‐Use Battery Industry

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Retired electric vehicle (EV) batteries can be repurposed to stationary storage batteries. While this circularity solution has attracted attention from entrepreneurs, falling battery prices, along with the longer lifetime of new batteries, high consumer expectations and limited governmental support challenge the approach.
Juliane Seika, Merla Kubli
wiley   +1 more source

Cluster Analysis of Circular Economy and Industrial Symbiosis Practices and Their Impact on Sustainability Performance in the Plastics Industry

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study examines how plastics manufacturing firms can be classified according to their level of implementation of circular economy (CE) and industrial symbiosis (IS) practices and how such adoption influences sustainability performance. Using data from plastics manufacturing firms, we integrate cluster analysis with partial least squares ...
Laura Cristina Ramírez‐Rodríguez   +3 more
wiley   +1 more source

Numerical solution of stefan problems

open access: yes, 1976
The enthalpy method for two dimensional Stefan problems is outlined, and applied to the numerical solution of a problem involving the solidification of a square cylinder of fluid, for which experimental data have been published.
Crowley, AB
core  

The Multifaceted Role of Trust in Circular Ecosystems: A Systematic Literature Review and Research Agenda

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Circular ecosystems connect diverse actors who collaborate to close resource loops and pursue sustainable goals without centralized control. Such arrangements entail heightened interdependence and uncertainty, making trust, understood as the willingness to accept vulnerability based on positive expectations of others' behavior, a critical ...
Inken Hoeck, Tassilo Schuster
wiley   +1 more source

Eco‐Innovation Among Environmental Small and Medium Enterprises: A Complexity Theory View on a Regional Paradox

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Environmental entrepreneurship and eco‐innovation, although cornerstones in the transition to a sustainable world, form a research nexus that remains largely understudied. We draw on the theory of complexity and the notion of cultural, temporal, and relational complexities to explain the process of eco‐innovation among environmental small ...
Georgios Outsios, Stefan Chichevaliev
wiley   +1 more source

A Stefan problem for composite materials with an arbitrary number of moving phase-transition boundaries

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки
A Stefan problem of heat transfer in semi-infinite bodies with an arbitrary number of unsteady moving boundaries during phase transitions was solved. Such problems arise when composite materials are heated at high temperatures, causing the binding agents
E. L. Kuznetsova, S. I. Zhavoronok
doaj   +1 more source

Structure Elucidation and Total Synthesis of Granolides A–C: Ethyl‐branched Sesquiterpenes From the Tropical Frog Gephyromantis granulatus

open access: yesChemistry – A European Journal, EarlyView.
Males of the tropical frog Gephyromantis granulatus carry unique ethyl‐branched sesquiterpenoid macrolactones in their scent glands. Their structure elucidation was performed by GC/MS, leading to the proposed structures of the granolides. A flexible enantioselective synthesis confirmed the structures and allowed determination of their absolute ...
Johanna Kuhn   +2 more
wiley   +1 more source

Optimal control of a moving boundary by laser heating in a 2-phase Stefan problem

open access: yes, 2008
The 2-phase heat control problem by a single laser point input is studied and a method of overcoming the moving boundary problem is introduced. This is achieved by applying a sequence of linear time varying control problems which converge to the single ...
Xu, Xu   +3 more
core  

A Methodology to Integrate Closed‐Cycle Heat Pumps into Batch Distillation Columns

open access: yesChemie Ingenieur Technik, EarlyView.
Batch distillation often cannot use vapor recompression due to contamination risks in food and pharma. This study proposes a design for integrating closed‐loop heat pumps using natural fluids. Results show significant energy savings, offering a sustainable alternative to traditional setups.
Philipp Dorn   +5 more
wiley   +1 more source

Jackknife bias‐corrected variance estimation for the generalized regression estimator

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract Commonly used variance estimators for the generalized regression estimator (GREG) are based on Taylor linearization and jackknife. Traditionally, a jackknife GREG variance estimator is obtained by jackknifing GREG, which consists of computing GREG from each of several subsamples of the parent sample, and estimating the variance of the parent ...
Marius Stefan, J.N.K Rao
wiley   +1 more source

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