abstract bottom rack intake is one of the most popular structures used for diverting water in mountain region. corrosion and rotten problems of bottom racks inspire the introduction of a new system of bottom intake in which a porous media is replaced by the bottom rack. obviously, clogging and reduction of diverted discharge are the most important problems in this new system, too. in this paper...

The purpose of this communication is to describe a rack which permits the simultaneous handling of 24 culture vials for purposes of plaque assays of viruses, interferon assays, cloning of cells, and other related procedures in cell culture. In this laboratory, the rack has been found to decrease significantly the time and effort required for the manipulation of moderate to large numbers of cult...

Traditional accident risk prediction models need adequate data on explanatory variables, most importantly data on traffic flows. However, in the case of accidents between bicycles the availability of such data is often limited. Therefore, alternative bottom-up simulation modelling approaches are expected to complement traditional equation-based models. In this paper we present an agent-based ap...

In this paper, a question due to Heckenberger, Shareshian and Welker on racks in Heckenberger et al. (Trans Am Math Soc, 372:1407–1427, 2019) is positively answered. A rack set together with self-distributive bijective binary operation. We show that the lattice of subracks every finite complemented. Moreover, we characterize modular lattices terms complements subracks. Also, introduce certain c...

Most research on cyclist safety is focused on bicycle motor vehicle crashes. Only a few studies address single-bicycle crashes (i.e. a fall or obstacle collision), in spite of the fact that most cyclists admitted to hospitals are single-bicycle crash victims. This study developed a categorization of single-bicycle crash types. A draft categorization was developed based on the scarce literature ...

Autonomous robots in unstructured and dynamically changing retail environments have to master complex perception, knowledge processing, and manipulation tasks. To enable them to act competently, we propose a framework based on three core components: (◦) A background knowledge enabled perception system, which is capable of combining diverse information sources to cope with challenging conditions...

A rack is a set equipped with a bijective, self-right-distributive binary operation, and a quandle is a rack which satisfies an idempotency condition. In this paper, we introduce a new definition of modules over a rack or quandle, and show that this definition includes the one studied by Etingof and Graña [9] and the more general one given by Andruskiewitsch and Graña [1]. We further show that ...

This paper analyses the influence of residual stresses and strain hardening due to the cold rollforming process on the load carrying capacity of perforated rack columns. First of all, a residual strain distribution of the manufacturing process is obtained via a finite element analysis and then it is introduced in the model as initial state to carry out a nonlinear buckling analysis. Two differe...

For modern Internet data centers, a key challenge to meeting the immense compute, storage, and networking needs of next-generation applications is the ability of the underlying infrastructure to scale. An important new trend in this direction is the introduction of socalled “rack scale” computers, which are large numbers of tightly integrated systems-on-chip (SoC) processors, interconnected wit...

Room cooling is an ineffective approach for next-generation data centers. Latest generation high density and variable density IT equipment create conditions that room cooling was never intended to address, resulting in cooling systems that are inefficient, unpredictable, and low in power density. Row-oriented and rack-oriented cooling architectures have been developed to address these problems....