DS-KCF: a real-time tracker for RGB-D data

© 2016 The Author(s) We propose an RGB-D single-object tracker, built upon the extremely fast RGB-only KCF tracker that is able to exploit depth information to handle scale changes, occlusions, and shape changes. Despite the computational demands of the extra functionalities, we still achieve real-time performance rates of 35–43 fps in MATLAB and 187 fps in our C++ implementation. Our proposed method includes fast depth-based target object segmentation that enables, (1) efficient scale change handling within the KCF core functionality in the Fourier domain, (2) the detection of occlusions by temporal analysis of the target’s depth distribution, and (3) the estimation of a target’s change of shape through the temporal evolution of its segmented silhouette allows. Finally, we provide an in-depth analysis of the factors affecting the throughput and precision of our proposed tracker and perform extensive comparative analysis. Both the MATLAB and C++ versions of our software are available in the public domain

Removal of zinc(II) ions from sulphate and chloride solutions using Lewatit MonoPlus SP112 ion-exchange resin

W prezentowanej pracy przedstawiono wyniki badań wpływu parametrów operacyjnych na szybkość i równowagę wymiany jonów Zn(II) zachodzącej na kwaśnej żywicy Lewatit MonoPlus SP 112. Badania prowadzono z roztworów siarczanowych(VI) i chlorkowych w zakresie stężenia początkowego Zn 2+ od 0,0001 do 0,1 mol/dm3 i pH zmienianego w zakresie od 0 do 6. Stwierdzono, że możliwa jest sorpcja jonów cynku na zastosowanej żywicy, a kinetyka procesu może być opisana za pomocą modelu reakcji pseudo II rzędu. Ponadto zaobserwowano, że ze wzrostem stężenia początkowego Zn2+ wzrasta ilość zaadsorbowanych jonów cynku.The paper presents the results of research on the influence of operating parameters on kinetics and equilibria of Zn(II) ion exchange on the acidic Lewatit MonoPlus SP 112 resin. The tests were carried out from sulphate(VI) and chloride solutions at the initial Zn2+ concentration ranged from 0.0001 to 0.1 mol/dm3 and pH ranged from 0 to 6. It was found that the sorption of zinc ions on the resin used is possible, and the kinetics of the process can be described by means of a pseudo secondary order equation. In addition, it was observed that the amount of adsorbed zinc ions increased with increasing of Zn2+ initial concentration

Selected rare and protected macrofungi (Agaricomycetes) as bioindicators of communities of xerothermic vegetation in the Nida Basin

Results of mycological investigations conducted in xerothermic grasslands of the Nida Basin in the years 1984–2013 are presented. Our research brings up to date the current knowledge on ecological requirements of threatened species of macrofungi. Strong affiliations between macrofungi and specific phytocenoses of the alliances Festuco-Stipion and Seslerio-Festucion duriusculae were detected. A considerable influence of the occurrence of certain species of steppe fungi on the composition of the mycobiota in the Nida Basin was identified

OSMOSIS: Enabling Multi-Tenancy in Datacenter SmartNICs

Multi-tenancy is essential for unleashing SmartNIC’s potential in datacenters. Our systematic analysis in this work shows that existing on-path SmartNICs have resource multiplexing limitations. For example, existing solutions lack multi-tenancy capabilities such as performance isolation and QoS provisioning for compute and IO resources. Compared to standard NIC data paths with a well-defined set of offloaded functions, unpredictable execution times of SmartNIC kernels make conventional approaches for multi-tenancy and QoS insufficient. We fill this gap with OSMOSIS, a SmartNICs resource manager co-design. OSMOSIS extends existing OS mechanisms to enable dynamic hardware resource multiplexing of the on-path packet processing data plane. We integrate OSMOSIS within an open-source RISC-V-based 400Gbit/s SmartNIC. Our performance results demonstrate that OSMOSIS fully supports multi-tenancy and enables broader adoption of SmartNICs in datacenters with low overhead