The objective of this paper is to study an integrated two-supplier supply chain whose suppliers are unreliable. An unreliable supplier is alternative between available (ON) and unavailable (OFF) states which are considered to be independent exponential variables. The suppliers apply a continuous review policy and the retailer uses an adapted continuous review base on an(R,Q) policy. Transportat...

AbstractCost-effective depth and infrared sensors as alternatives to usual RGB are now a reality, have some advantages over in domains like autonomous navigation remote sensing. As such, building computer vision deep learning systems for data crucial. However, large labeled datasets these modalities still lacking. In such cases, transferring knowledge from neural network trained on well-labeled...

Abstract Task-based language teaching is considered an effective way to achieve a harmony between grammar and communication. The present study investigates two different ways of teaching modal verbs: task-based versus traditional approaches. To this purpose, an Oxford Placement Test was administered to select 40 homogeneous participants out of a larger population who took this test. The selecte...

A cyclic base ordering of a connected graph G is a cyclic ordering of E(G) such that every |V (G)−1| cyclically consecutive edges form a spanning tree ofG. LetG be a graph with E(G) ̸= ∅ and ω(G) denote the number of components in G. The invariants d(G) and γ(G) are respectively defined as d(G) = |E(G)| |V (G)|−ω(G) and γ(G) = max{d(H)}, where H runs over all subgraphs of G with E(H) ̸= ∅. A grap...

This paper considers a multistage serial inventory system with Markov-modulated demand. Random demand arises at Stage 1, Stage 1 orders from Stage 2, etc., and Stage N orders from an outside supplier with unlimited stock. The demand distribution in each period is determined by the current state of an exogenous Markov chain. Excess demand is backlogged. Linear holding costs are incurred at every...

This scientific report presents a real-time method to animate complex scenes of thousands of trees under a user-controllable wind load. Firstly, modal analysis is applied to extract the main modes of deformation from the mechanical model of a 3D tree. The novelty of our contribution is to precompute a new basis of the modal stress of the tree under wind load. At runtime, this basis allows to re...

We propose a fully parallel calculus of synchronizing processes. The calculus was deeply inspired by LOTOS, of which it inherits multi-party synchronization in process parallel composition. On the other hand, its semantics is not interleaving whereas LOTOS one is. The model we propose is somehow in between Milner's SCCS and ASCCS in that independent actions are performed simultaneously, whereas...

Self-organized Ge islands grown on patterned Si(001) substrates have been investigated. Selective epitaxial growth (SEG) of Si is carried out with gas-source molecular beam epitaxy to form Si stripe mesas followed by subsequent Ge island growth. Self-aligned Ge islands with regular spacing are formed on the 〈110〉-oriented ridges of the Si mesas. The regular spacing is driven by the repulsive in...