Results 171 to 180 of about 178,428 (365)

Project management challenges in client‐consultant decision‐making: A case for the Ghanaian mining construction industry

open access: yesCanadian Journal of Administrative Sciences / Revue Canadienne des Sciences de l'Administration, EarlyView.
Abstract This study explores the complex decision‐making (DM) dynamics between clients and consultants, a crucial area often neglected in existing research. Utilizing a Multi‐Perspective Approach combined with Multi‐Criteria Decision Analysis, we examine DM challenges such as cost overruns, project delays, and compromised work quality stemming from ...
A. Akofa Amegboleza   +2 more
wiley   +1 more source

Organocatalyzed Diels‐Alder Reactions: Unexplored Hydrogen Bond Donor Catalysts

open access: yesChemPlusChem, EarlyView.
Quantum chemical activation strain analyses show that urea‐derived hydrogen‐bond organocatalysts, including unconventional alternatives to the C=O group (e. g., C=C and C=Si), lower the Diels‐Alder reaction barrier between butadiene and acrolein by Pauli lowering catalysis.
Eveline H. Tiekink   +3 more
wiley   +1 more source

Phosphine‐Ligated Cobalt(II) Acetylacetonate Complexes

open access: yesEuropean Journal of Inorganic Chemistry, Accepted Article.
Cobalt(II) acetylacetonate complexes bearing a phosphine ligand can be key intermediates or precursors to cobalt‐based catalysts; however, they have been rarely studied, especially from the molecular structure point of view. This work is focused on the understanding of how different phosphines react with Co(acac)2 (acac = acetylacetonate).
J.P. I. Dulmini Jayawardhena   +2 more
wiley   +1 more source

Self‐Warning and Self‐Repairing Mechanisms in Functional Coatings: A Review

open access: yesExploration, EarlyView.
In this paper, we summarize the research progress of self‐warning and self‐repairing coatings in the field of metal corrosion protection as much as possible from the perspective of functional material selection. Meanwhile, the current progress of substituting dual‐functional coatings for single‐functional coatings is also highlighted. ABSTRACT Coatings
Yixin Chen   +5 more
wiley   +1 more source

OPTIMIZATION AND POST-BUCKLING ANALYSIS OF A LONG SHAFT ROTOR SYSTEM WITH PINNED-STABILIZED SUPPORTED AT ARBITRARY POSITION

open access: yesJixie qiangdu, 2018
A nonlinear model of a pinned-free long shaft rotor system with a stabilized support at arbitrary position is established by employing the generalized Hamilton principle.
XIAO ShiFu, CHEN HongYong, NIU HongPan
doaj  

From life cycle assessment to grass‐based agriculture: A review and application

open access: yesGrassland Research, EarlyView.
Research scope, primary processes and key considerations of life cycle assessment in grass‐based agriculture. Abstract Life cycle assessment (LCA) serves as an essential tool for the quantitative evaluation of production efficiency, environmental impacts, and sustainability across the entire life cycle of grass‐based agricultural systems.
Yutong Li   +7 more
wiley   +1 more source

Shear Wave Optical Coherence Elastography and Structural Analysis of the Postnatal Mouse Cornea through Development

open access: yesJournal of Biophotonics, EarlyView.
This paper investigates the geometrical and biomechanical properties of neonatal eyes at the early stages of development. We found that the corneal thickness is uncoupled from elastic wave speed and that the content and organization of the cornea primarily influence its mechanical properties.
Andrew L. Lopez III   +4 more
wiley   +1 more source

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