Results 111 to 120 of about 47,047 (265)

Biosorption of heavy metals from wastewater via agro waste derived biosorbents emphasizing mechanisms kinetics isotherm models and modification strategies

Discover Applied Sciences
Heavy-metal contamination remains a critical environmental issue due to the persistence and toxicity of metals such as Pb, Cd, Cr, Ni, and Mn. Agricultural waste–derived biosorbents have emerged as cost-effective and sustainable alternatives to ...
Soumyashree Parida, Lala Behari Sukla, D. P. Krishna Samal   +2 more
doaj   +1 more source

Extensions of iterative congruences on free iterative algebras

Journal of Computer and System Sciences, 1983
An iterative \(\Sigma\)-algebra A is a \(\Sigma\)-algebra with a unique solution for every fixpoint equation of the form \(x=p(x,a)\), with \(a\in A^ k\) and p an n-tuple of polynomial terms in \(\Sigma\) and \((n+k)\) variables. The \(\Sigma\)-algebra \(\bar R_{\Sigma}(Y)\) of total regular trees on \(\Sigma\) and Y is the free iterative algebra ...
openaire   +1 more source

Integrated location–inventory planning for slow‐moving demands with waiting time limitations

International Transactions in Operational Research, EarlyView.
Abstract This paper studies a stochastic facility location problem integrated with inventory and transportation decisions (SFLPIT) for supply chains with slow‐moving stock‐keeping units (SKUs). Local stores often avoid maintaining such SKUs, resulting in customer demand being fulfilled directly by a central distribution center (DC), where the ...
Jie Chu, Fan E, Kai Huang, Yunyang Lu, Majid Taghavi   +4 more
wiley   +1 more source

Exact and metaheuristic approaches to minimizing makespan in parallel machine scheduling with conflicting jobs

International Transactions in Operational Research, EarlyView.
Abstract We address the scheduling conflicting jobs on parallel identical machines problem with makespan minimization, a classical and computationally challenging variant of parallel machine scheduling. We develop and evaluate three distinct solution methodologies: a novel constraint programming (CP) formulation, and two metaheuristics: a multi ...
Roberto Maria Rosati, Dinh Quy Ta, Minh Hoàng Hà, Andrea Schaerf   +3 more
wiley   +1 more source

The strain-dependence of the critical current density in the high-field superconductor Nb(_3)Sn [PDF]

, 2004
Measurements of the critical current density (J_c) of Nb(_3)Sn superconducting wires were performed as a function of magnetic field (B ≤ 23 T), temperature (4.2 K ≤ T ≤ 12 K), and axial strain (-1.6% ≤ ɛ ≤ 0.7%).
Taylor, David Matthew Joseph
core  

Park‐and‐multi‐loop with autonomous delivery robots in last‐mile logistics

International Transactions in Operational Research, EarlyView.
Abstract This paper deals with the park‐and‐multi‐loop routing problem, in the context of last‐mile logistics, in which a fleet of traditional vehicles equipped with several autonomous delivery robots leaves from a depot to service a set of customer requests.
Tommaso Adamo, Gianpaolo Ghiani, Emanuela Guerriero, Emanuele Manni, Gianluca Solazzo   +4 more
wiley   +1 more source

Glucose-insulin system dynamics in type-I diabetes patient based on Aquila Optimization-Tilt Integral-Derivative-Filter (AO-TIDF) approach

Discover Applied Sciences
This study illustrates the conceptual framework of Aquila Optimization-Tilt Integral-Derivative-Filter (AO-TIDF) for managing the recommended insulin dosages to interaction in Type-I Diabetes Mellitus (TIDM) patients using an Artificial Pancreas (AP) for
Akshaya Kumar Patra, Smitta Ranjan Dutta, Alok Kumar Mishra   +2 more
doaj   +1 more source

Deep reinforcement learning for multi‐restart metaheuristics: an environment design for a hybrid of unbiased exploratory search and covariance matrix adaptation evolution strategy

International Transactions in Operational Research, EarlyView.
Abstract Multi‐restart metaheuristics can be highly effective for complex optimization problems, yet their performance depends critically on how restarts and algorithmic parameters are selected. This paper introduces a reinforcement learning approach for managing restart‐level decisions and parameter configurations in the UES–CMA‐ES hybrid ...
Antonio Bolufé‐Röhler, Bowen Xu
wiley   +1 more source

The design of the ITER first wall panels

, 2013
International audienceThe ITER blanket is in the final stage of design completion. The issues raised during the 2007 ITER design review about the First Wall (FW) heat loads and remote handling strategy have been addressed, while integrating the recently ...
Raffray, R., Martin, A., Zacchia, F., Eaton, R., Ulrickson, M., Chappuis, P., Merola, M., Mitteau, R., Gicquel, S., Jiming, C., Labusov, A., Calcagno, B.   +11 more
core   +1 more source

Effects of hydrogen plasma treatment on the electronic, optical, mechanical and chemical properties of Mo, Rh, Au, HOPG and Graphene [PDF]

, 2013
Interaction of ionic and atomic species of hydrogen isotopes (protium, deuterium and tritium) with transition metals and carbon materials is an important subject of research in the condensed matter physics and material science fields.
Eren, Baran
core   +1 more source