Results 91 to 100 of about 1,821,205 (250)

Organisational dehumanisation: Authoritativeness as remedy

European Management Review, EarlyView.
Abstract According to orthodoxy, the human relations movement was a watershed in rehumanising scientifically managed workplaces. In the wake of such purported reform, pundits (theorists and practitioners alike) have typically taken for granted that 21st century approaches to workplace superintendence, birthed in the wake of the Hawthorne Studies and ...
Jean‐Etienne Joullié, Anthony M. Gould, Jeffrey Muldoon   +2 more
wiley   +1 more source

Optimization Method for Solving the Reasonable Arch Axis of Long-Span CFST Arch Bridges

Advances in Civil Engineering, 2019
With the continuous construction of 500 m concrete-filled steel-tube (CFST) arch bridges such as the Bosideng Yangtze River Bridge and the Hejiang Changjiang Highway Bridge, the deviation between the dead pressure line and the arch axis produced by ...
Xuesong Zhang, Ningyi Liang, Xiaohong Lu, Anbang Gu, Jidong Shan   +4 more
doaj   +1 more source

Weight minimization of truss structures with sizing and layout variables using integrated particle swarm optimizer

Journal of Civil Engineering and Management, 2017
This study investigates the performances of the integrated particle swarm optimizer (iPSO) algorithm in the layout and sizing optimization of truss structures.
Ali Mortazavi, Vedat Toğan, Ayhan Nuhoğlu   +2 more
doaj   +1 more source

Investigating Fracture Behavior of Lattice Structures Using the XFEM and Equivalent Solid Material Model Techniques

Fatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT This study aims to numerically investigate the mode I, II, and III fracture behaviors of additively manufactured degradable, bioplastic polylactic acid (PLA) lattice specimens. Numerical simulations were performed using the eXtended Finite Element Method (XFEM) based on the extracted PLA's mechanical and fracture material properties.
Bahman Paygozar, Recep M. Gorguluarslan
wiley   +1 more source

Mixed Variable Formulations for Truss Topology Optimization [PDF]

, 2013
A study on formulating truss topology optimization problems using continuous and binary variables is presented. The ground structure approach, where members and nodes are allowed to vanish from an initial dense truss, is adopted.
Mela, Kristo
core  

Truss topology optimization for mass and reliability considerations—co-evolutionary multiobjective formulations

, 2011
The paper presents an approach for simultaneous optimization of structural mass and reliability in discrete truss structures. In addition to member sizing, the selection of an optimal topology from a pre-specified ground structure is a feature of the ...
Hajela, Prabhat, Greiner, David, David Greiner, Prabhat Hajela   +3 more
core   +1 more source

Heat Transfer Search Algorithm for Sizing Optimization of Truss Structures

Latin American Journal of Solids and Structures
Heat transfer search (HTS) is a novel metaheuristic optimization algorithm that simulates the laws of thermodynamics and heat transfer. In this study, the HTS algorithm is adapted to truss structure optimization.
S.O. Degertekin, L. Lamberti, M.S. Hayalioglu   +2 more
doaj   +1 more source

Optimization of Bridge Trusses Height and Bars Cross-Sections

The Baltic Journal of Road and Bridge Engineering, 2012
The problems of optimal design of truss-type structures, aimed at determining the minimal volume (weight) of the structure, while optimizing the bar cross-sections and the truss height, are considered.
Stanislovas Kalanta, Juozas Atkočiūnas, Tomas Ulitinas, Andrius Grigusevičius   +3 more
doaj   +1 more source

Asymmetric Regulatory Embeddedness and Post‐Brexit Governance: Explaining Adaptive Convergence in the United Kingdom

JCMS: Journal of Common Market Studies, EarlyView.
Abstract Why has the United Kingdom repeatedly restored substantive compatibility with European Union (EU) regulatory norms despite formal withdrawal? This article introduces the concept of asymmetric regulatory embeddedness (ARE) to explain post‐membership governance in highly integrated sectors. ARE captures the structural condition in which a former
George Asiamah
wiley   +1 more source

Role of the tomato MARS1/ROUGH gene encoding a LYSINE‐SPECIFIC HISTONE DEMETHYLASE 1 in adventitious root and fruit skin formation

Journal of Integrative Plant Biology, EarlyView.
The tomato mars1/rough mutant displays enhanced root regeneration and rough fruits due to ectopic cell proliferation. The causal gene encodes a lysine‐specific histone demethylase that normally maintains gene silencing. Its loss alters histone methylation, upregulating several genes, including those B‐type cyclins involved in tissue‐specific cellular ...
Eduardo Larriba, Cécile Bres, Aurora Alaguero‐Cordovilla, Riyazuddin Riyazuddin, Qingyi Wang, Johann Petit, Jean‐Philippe Mauxion, Lara Caballero, David Latrasse, Bénédicte Bakan, Rim Brik‐Chaouche, David Esteve‐Bruna, Moussa Benhamed, Christophe Rothan, José Manuel Pérez‐Pérez   +14 more
wiley   +1 more source