Consistency check of charged hadron multiplicities and fragmentation functions in SIDIS

We derived the conditions on certain combinations of integrals of the fragmentation functions of pion using HERMES data of the sum for the charged pion multiplicities from semi-inclusive deep-inelastic scattering (SIDIS) off the deuteron target. In our derivation the nucleon parton distribution functions (PDFs) are assumed to be isospin SU(2) symmetric. Similar conditions have also been obtained for the fragmentation functions (FFs) of kaon by the sum of charged kaon multiplicities as well. We have chosen several FFs to study the impact of those conditions we have derived. Among those FFs, only that produced in the nonlocal chiral-quark model (NL$\chi$QM) constantly satisfy the conditions. Furthermore, the ratios of the strange PDFs $S(x)$ and the nonstrange PDFs $Q(x,Q^2)$ extracted from the charged pion and kaon multiplicities differ from each other significantly. Finally, we demonstrate that the HERMES pion multiplicity data is unlikely to be compatible with the two widely-used PDFs, namely CTEQ6M and NNPDF3.0.Comment: 11 pages, 5 fig

Bis(5-chloro­salicylato-κO)bis­(1,10-phenanthroline-κ2 N,N′)cadmium(II)

In the title complex, [Cd(C7H4ClO3)2(C12H8N2)2], the Cd atom is coordinated by two 5-chloro­salicylate ligands and two 1,10-phenanthroline ligands, displaying a distorted octa­hedral coordination geometry. The crystal structure is stabilized by O—H⋯O and C—H⋯O hydrogen bonds and π–π inter­actions between the 1,10-phenanthroline ligands and 5-chloro­salicylate ligands, with a centroid–centroid distance between neighbouring aromatic rings of 3.730 (1) Å

Noise-Constrained Performance Optimization by Simultaneous Gate and Wire Sizing Based on Lagrangian Relaxation

Noise, as well as area, delay, and power, is one of the most important concerns in the design of deep sub-micron ICs. Currently existing algorithms can not handle simultaneous switching conditions of signals for noise minimization. In this paper, we model not only physical coupling capacitance, but also simultaneous switching behavior for noise optimization. Based on Lagrangian relaxation, we present an algorithm that can optimally solve the simultaneous noise, area, delay, and power optimization problem by sizing circuit components. Our algorithm, with linear memory requirement overall and linear runtime per iteration, is very effective and efficient. For example, for a circuit of 6144 wires and 3512 gates, our algorithm solves the simultaneous optimization problem using only 2.1 MB memory and 47 minute runtime to achieve the precision of within 1% error on a SUN UltraSPARC-I workstation

Subway Fire Cause Analysis Model Based on System Dynamics: A Preliminary Model Framework

AbstractThis paper collects typical major subway fire cases in nearly 20 years. Through analysis of these cases, the causes of the fire accidents are summed up. And further the influence factors of these reasons are extracted, including four aspects namely equipment, human, environment and emergency management. On this basis, combined with the relevant principles of system dynamics, the influence of various factors on the happening, spreading and controlling of subway fires are considered. Then, a simulation model of subway fire accident rate is constructed by Vensim. The equations of relevant variables and parameters of the system are given preliminarily