Abstract According to the increasing carbon dioxide released through vehicles and shortage of water resources, decision-makers decided combine environmental economic effects in Agri-Food Supply Chain Network (AFSCN) developing countries. This paper focuses on citrus fruit supply chain network. The novelty this study is proposal a mathematical model for three-echelon AFSCN considering simultaneo...

We introduce a novel variant of cutting production planning problems named Integrated Cutting and Packing Heterogeneous Precast Beams Multiperiod Production Planning (ICP-HPBMPP). propose an integer linear programming model for the ICP-HPBMPP, as well lower bound its optimal objective function value, which is empirically shown to be closer solution value than obtained from relaxation model. als...

In this exposition, we give a overview of the GCT approach to solve fundamental lower bound problems in algebraic models of computation. 1.1 Lower bound problems Consider a polynomial f(~x) ∈ Z[~x] with integral coefficients. The non-uniform version of the P v/s NP problem, prescribes a specific such f and asks if it can be shown not to have polynomial size arithmetic circuits over F2. The char...

A medium sized UK based academic publishers own a subsidiary printing business. Presently the Academic Printers (AP) is experiencing productions line flow problems reducing the efficiency of the operation. Most of the problems are generated by the imbalanced workflow through the system. By implementing a JIT production planning system it is hoped that some of the production problems can be reso...

Amitriptyline hydrochloride is a highly permeable active pharmaceutical ingredient (API). The function of these drugs is to block the reuptake of the neurotransmitters, norepinephrine and serotonin in the central nervous system. The nano-sized Amitriptyline (AT) imprinted polymer particles were synthesized successfully. The nanoparticles were characterized by Fourier transform infrared spectros...

All true believers shall break their eggs at the convenient end: and which is the convenient end, seems, in my humble opinion, to be left to every man's conscience, or at least in the power of the chief magistrate to determine. Abstract We present an axiomatization of a problem in commonsense reasoning, characterizing the proper procedure for cracking an egg and transferring its contents to a b...

I present a parallel matrix-free framework for frequency-domain seismic modeling, imaging and inversion. The framework provides basic building blocks for designing and testing optimization-based formulations of both linear and non-linear seismic inverse problems. By overloading standard linear-algebra operations, such as matrixvector multiplications, standard optimization packages can be used t...

Matrix partition problems generalize a number of natural graph partition problems, and have been studied for several standard graph classes. We prove that each matrix partition problem has only finitely many minimal obstructions for split graphs. Previously such a result was only known for the class of cographs. (In particular, there are matrix partition problems which have infinitely many mini...