We consider a traditional joint pricing and inventory control problem with lead times, which has been extensively studied in the literature but is notoriously difficult to solve due to the complex structure of the optimal policy. In this work, rather than analyzing the optimal policy, we propose...

Discrete convexity, in particular, L-natural-convexity and M-natural-convexity, provides a critical opening to attack several classical problems in inventory theory, as well as many other operations problems that arise from more recent practices, for instance, appointment scheduling and...

Using overall institutional holdings as the proxy for tax-exempt investors, many existing literature has found mostly unfavorable evidence against dividend clientele theories. This paper categorizes institutions into two types, tax-exempt and non-tax-exempt institutions, to test dividend...

In this paper, we present a unified approach to study a class of cooperative games arisingfrom inventory centralization. The optimization problems corresponding to the inventory games are formulated as stochastic programs. We observe that the strong duality of stochastic linear programming not...

We reported here a highly active bimetallic Au x Ag 1-x /APTES@MCM-41catalysts in HCHO catalytic oxidation. It is found that AuAg bimetallic catalysts exhibit synergistic effects on structure properties. The addition of Ag on Au monometallic catalyst effectively reduced particle size, and...

Magnetic Particle Imaging (MPI) is a medical imaging technique, that is based on the detection of magnetic nanoparticles caused by their nonlinear magnetization behavior. The spatial encoding of the particledistribution measurement relies on the combination of an alternating magnetic field, the...

In this paper geographic information system (GIS) is introduced into the site selection planning of integrated energy stations, and a location decision model is built based on GIS & improved TOPSIS. In order to verify this for the feasibility of the model, Tianjin, China is selected as a...

In situ leaching loss of phosphorus (P), especially dissolved organic P, is poorly appreciated in mollisol. In this study, an in situ soil column experiment was conducted in the mollisol area of northeast China to investigate the seasonal variations of different P forms under three typical...

The amidoxime-modified ultrathin polyethylene fibrous membrane (called as AFM) is prepared by a two-step graft polymerization method. The nano-sized particle structures are constructed on the AFM adsorbents surface after grafting. The adsorption behaviors of AFM adsorbent are studied by...

To the authors’ knowledge, most research to date has concerned the conventional extractive distillation (CED) to separate acetone/ n -heptane binary azeotrope. In this paper, the extractive dividing wall column (EDWC) technique is utilized aiming at improving the economy, environmental...