This paper presents the formulation of a combinatorial optimization problem with the following characteristics: i.the search space is the power set of a finite set structured as a Boolean lattice; ii.the cost function forms a U-shaped curve when applied to any lattice chain. This formulation applies for feature selection in the context of pattern recognition. The known approaches for this probl...

inadequate attention to the products having shelf life limitation leads to form a new branch of supply chain (sc) called cold chain (cc). cold chain management (ccm) is referred to handle activities related to perishable products. this research investigates the role of information technology (it) in improving the human resource efficiency, planning and logistic in the cc organizations. the numb...

Four starch synthase I (SSI)-deficient rice (Oryza sativa) mutant lines were generated using retrotransposon Tos17 insertion. The mutants exhibited different levels of SSI activities and produced significantly lower amounts of SSI protein ranging from 0% to 20% of the wild type. The mutant endosperm amylopectin showed a decrease in chains with degree of polymerization (DP) 8 to 12 and an increa...

Small-angle neutron scattering (SANS) is employed to investigate the structure and longchain branch (LCB) content of metallocene-catalyzed polyethylene (PE). A novel scaling approach is applied to SANS data to determine themole fraction branch content (φbr) of LCBs in PE. The approach also provides the average number of branch sites per chain (nbr) and the average number of branch sites per min...

We characterize the Schwartz space of rapidly decaying test functions by the decay of the short-time Fourier transform or cross-Wigner distribution. Then we prove a version of Hardy’s theorem for the short-time Fourier transform and for the Wigner distribution.

At the end of 2019, a case pneumonia caused by corona virus was first discovered in city Wuhan, China. The disease then began to spread around world quickly and became known as Covid-19. Covid-19 pandemic has had tremendous impact on various aspects life, one which is economic aspect, including financial condition companies. As companies affected virus, namely PT Jasa Raharja West Sumatra Branc...