Development of Location-Inventory Model in Dual Channel Supply Chain and Solving the Model by Tabu Search Algorithm

, M.Sc. Thesis Sharif University of Technology Baghestani, Hamideh (Author) ; Hajji, Rasool (Supervisor)

Abstract

This thesis presents a location- inventory model for dual-channel supply chains .Dual-channel supply chains have two channels for sale the traditional in-store (retail) channel and the online (retail) channel.The model assigns online demands to the capacitated stores currently serving in-store demands. Keeping the delivery network of the in-store demands unchanged, the model aims at minimizing the summation of transportation cost, inventory cost, and fixed handling cost in the system while assigning the online demands. We assume that at the beginning of each period a distribution center which just distributes products to the stores, follows an order-up-to policy which increases the total...

Subgraphs Associated with Lists in Graphs and Digraphs

, M.Sc. Thesis Sharif University of Technology Ghaffari Baghestani, Afsane (Author) ; Akbari, Saeed (Supervisor)

Abstract

Let G be a graph and F : V (G) ...! 2N be a function. The graph G is said to be F-avoiding if there exists an orientation O of G such that d+ O(v) =2 F(v) for every v 2 V (G), where d+O(v) denotes the out-degree of v in the directed graph G with respect to O. In this thesis it is shown that if G is bipartite and jF(v)j dG(v) 2 for every v 2 V (G), then G is F-avoiding. The bound jF(v)j dG(v) 2 is best possible. For every graph G, we conjecture that if jF(v)j dG(v) 1 2 for every v 2 V (G), then G is F-avoiding. We also argue this conjecture; the best possibility and some partial solutions, e.g. for the complete graphs. For graph G, we say the set f(d+ i ; d i ); i = 1; : : : ; ng of...

A conductive adhesive ink for carbon-laminated perovskite solar cells with enhanced stability and high efficiency

, Article Solar Energy ; Volume 266 , 2023 ; 0038092X (ISSN) Baghestani, E ; Tajabadi, F ; Saki, Z ; Heidariramsheh, M ; Ghasemi, F ; Darbari, S ; Mashhoun, S ; Taghavinia, N ; Sharif University of Technology

Elsevier Ltd 2023

Abstract

Utilizing carbon-laminated electrodes on perovskite solar cells (PSCs) benefits from simple fabrication process and low-cost material, in addition to enhanced stability. In this method, carbon foils are laminated on the underlying hole transport layer (HTL), so the HTL/carbon electrode interface is of the utmost importance in achieving high-performance devices. Here, we develop a conductive adhesive ink, consisting of poly methyl methacrylate (PMMA), highly conductive carbon black (HCCB), and CuInS2 (CIS) nanoparticles, as the interfacial adhesive layer between the underlying CIS HTL and the top carbon electrode. Utilizing carbon foil, wetted by the proposed optimized adhesive ink layer,...

Generalization of the Online Prediction Problem Based on Expert Advice

, M.Sc. Thesis Sharif University of Technology Tavangarian, Fatemeh (Author) ; Foroughmand Araabi, Mohammad Hadi (Supervisor) ; Alishahi, Kasra (Co-Supervisor) ; Hosseinzadeh Sereshki, Hamideh (Co-Supervisor)

Abstract

One of the most important problems in online learning is a prediction with expert advice. In each step we make our prediction not only based on previous observation but also use expert information. In this thesis, we study the different well-known algorithms of expert advice and generalize problems when data arrival is in the two-dimensional grid. regret is a well-studied concept to evaluate online learning algorithm. online algorithm when data arrive consecutively in T time step has regret O (√(T)) . regret in two-dimensional grid with T row and P column is O(T√(P)).
2010 MSC: 68Q32 ; 68T05 ; 90C27