Results 101 to 110 of about 70,247 (289)

Field‐Programable Dynamics in a Soft Magnetic Actuator Enabling True Random Number Generation and Reservoir Computing

Advanced Intelligent Systems, EarlyView.
Complex dynamics, often avoided in electromechanical design, can enhance soft robotics. We develop durable magnetic soft actuators operating in tunable dynamic regimes, enabling random number generation, stochastic computing, and time‐series prediction.
Eduardo Sergio Oliveros‐Mata, Oleksandr V. Pylypovskyi, Eleonora Raimondo, Rico Illing, Yevhen Zabila, Lin Guo, Guannan Mu, Mónica Navarro López, Xu Wang, Georgios Tzortzinis, Angelos Filippatos, Gilbert Santiago Cañón Bermúdez, Francesca Garescì, Giovanni Finocchio, Denys Makarov   +14 more
wiley   +1 more source

Reformulation and decomposition of integer programs [PDF]

In this survey we examine ways to reformulate integer and mixed integer programs. Typically, but not exclusively, one reformulates so as to obtain stronger linear programming relaxations, and hence better bounds for use in a branch-and-bound based ...
WOLSEY , Laurence, VANDERBECK  , François   +1 more
core  

A mixed integer programming model formulation for solving the lot-sizing problem [PDF]

, 2012
This paper addresses a mixed integer programming (MIP) formulation for the multi-item uncapacitated lot-sizing problem that is inspired from the trailer manufacturer.
Mohammadi, Maryam, Md. Tap, Masine
core  

Mixed-Integer Convex Representability [PDF]

, 2019
We consider the question of which nonconvex sets can be represented exactly as the feasible sets of mixed-integer convex optimization problems. We state the first complete characterization for the case when the number of possible integer assignments is ...
Vielma, Juan Pablo, Lubin, Miles C, Zadik, Ilias   +2 more
core   +1 more source

Valid inequalities for mixed integer linear programs [PDF]

Mathematical Programming, 2007
This tutorial presents a theory of valid inequalities for mixed integer linear sets. It introduces the necessary tools from polyhedral theory and gives a geometric understanding of several classical families of valid inequalities such as lift-and-project cuts, Gomory mixed integer cuts, mixed integer rounding cuts, split cuts and intersection cuts, and
openaire   +2 more sources

Accounting for animal health in efficiency analysis: An application to Swedish dairy farms

American Journal of Agricultural Economics, EarlyView.
Abstract Poor animal health is a central concern in modern livestock production. Despite the necessity to incorporate animal health in efficiency analysis, the theoretical and empirical developments are limited on this subject. This article appropriately characterizes the axiomatic properties of animal health within a production framework.
Frederic Ang, Enoch Owusu‐Sekyere, Karin Alvåsen, Helena Hansson   +3 more
wiley   +1 more source

User-centric energy efficiency fairness in backscatter-assisted wireless powered communication network

Tongxin xuebao, 2020
In order to address the unfair user-centric energy efficiency (EE) problem caused by channel difference in the backscatter-assisted wireless powered communication network,a resource allocation scheme was proposed.Firstly,a mixed integer nonconvex ...
Yinghui YE, Liqin SHI, Guangyue LU
doaj   +2 more sources

A multi-objective multi-period mathematical programming model for integrated project portfolio optimization and contractor selection

MethodsX
This paper addresses the challenges of project portfolio optimization and contractor selection through two proposed scenarios. In the first scenario, two separate mixed-integer mathematical programming models are presented: one for project portfolio ...
Mostafa Zahedirad, Kaveh Khalili-Damghani, Vahidreza Ghezavati, Alireza Rashidi Komijan   +3 more
doaj   +1 more source

The IL‐10/IL‐6 Ratio and the Risk Score: Two Cytokines‐Based Predictors for Malignancy‐Associated Hemophagocytic Lymphohistiocytosis in Adults (M‐HLHa)

American Journal of Hematology, EarlyView.
ABSTRACT The predictive value of cytokines (CK) for malignancy‐associated adult hemophagocytic lymphohistiocytosis (M‐HLHa) remains uncertain. We evaluated a cytokine‐based Risk Score (RS) and the IL‐10/IL‐6 Ratio to predict M‐HLHa. Adult patients (n = 112) from the French HLH cohort (NCT02113917) with complete data for nine key HLH related CK measured
Coralie Bloch, Stephanie Chhun, Nanthara Sritharan, Marine Gil, Raphael Lhote, Marouane Boubaya, Olivier Lambotte, David Launay, Claire Larroche, Estibaliz Lazaro, Francois Liffermann, Marc Michel, Jean‐Marie Michot, Pierre Morel, Louis Terriou, Geoffrey Urbansk, Jean‐Francois Viallard, Morgane Cheminant, Felipe Suarez, Yves Lepelletier, Geneviève de Saint Basile, Olivier Hermine, the French HLH Study Group, Coralie Bloch, Jean Philippe Jais, Francois Liffermann, Pierre Morel, Morgane Cheminant, Felipe Suarez, Olivier Hermine, Fabrice Bonnet, Pascal Godemer, Damaj Gandhi, Olivier Fain, Olivier Lambotte, David Launay, Louis Terriou, Claire Larroche, Estibaliz Lazaro, Jean‐Francois Viallard, Francois Liffermann, Olivier Lortholary, Marc Michel, Jean‐Marie Michot, Pierre Morel, Frederic Pene, Antoinette Perlat, Geoffrey Urbanski   +47 more
wiley   +1 more source

Operational Optimization of Steam Turbine Systems for Time Series in Hourly Resolution: A Systematic Comparison of Linear, Quadratic and Nonlinear Approaches

Energies
Computer-aided modeling and mathematical optimization of energy systems are essential for improving operational efficiency and achieving emission reductions, particularly for steam turbine systems with part-load-dependent efficiency characteristics ...
Louisa Zaubitzer, Maurice Görgen, Frank Alsmeyer   +2 more
doaj   +1 more source