90,054 research outputs found
F-Tester Platform Scenario Creation System
No full textF-Lab je platforma pro testování vlastností a schopností počítačových sítí. F-Tester je součástí F-Lab, která je zodpovědná za měření parametrů komunikace mezi zařízeními založenými na protokolu TCP/IP. Test Planner je modul pro F-Tester, který umožňuje vytvářet testovací konfigurace a kombinovat je do scénářů, které může F-Tester provádět. Tento dokument obsahuje analýzu návrhu Test Planneru a popis jeho implementace.F-Lab is the platform for testing properties and abilities of computer networks. F-Tester is a part of F-Lab that is responsible for measuring parameters of communication between devices based on TCP/IP protocol. Test Planner is the module for F-Tester that allows to create test configurations and combine them into scenarios that can be executed by F-Tester. This document contains design analysis of Test Planner as well as its implementation description
System for creating scenarios for F-Tester platform
No full textF-Lab je platforma pro testování vlastností a schopností počítačových sítí. F-Tester je součástí F-Lab, která je zodpovědná za měření parametrů komunikace mezi zařízeními založenými na protokolu TCP/IP. Test Planner je modul pro F-Tester, který umožňuje vytvářet testovací konfigurace a kombinovat je do scénářů, které může F-Tester provádět. Tento dokument obsahuje analýzu návrhu Test Planneru a popis jeho implementace.F-Lab is the platform for testing properties and abilities of computer networks. F-Tester is a part of F-Lab that is responsible for measuring parameters of communication between devices based on TCP/IP protocol. Test Planner is the module for F-Tester that allows to create test configurations and combine them into scenarios that can be executed by F-Tester. This document contains design analysis of Test Planner as well as its implementation description
F-Tester Measured Data Visualisation
No full textV práci je provedena analýza měřených dat měřící platformy F-Tester, současných technologií pro tvorbu interaktivních map a způsobů vizualizace. Jsou navržena autonomní řešení ve vybraných technologiích se zvolenou vizualizací. S kandidáty je provedeno výkonnostní a uživatelské testování. Dle výsledků z testování je nejlepším kandidátem zvolena vizualizace pomocí bodu v knihovně Leaflet.The thesis analyses the measured data of the F-Tester measurement platform, current technologies for creating interactive maps, and visualization methods. Also suggests autonomous solutions in chosen technologies with selected visualization. Performance testing and usability testing are conducted with the candidates. According to the results from the testing, the best candidate is the visualization using circles in Leaflet library
PATH Tester MPI 100 - Pain and thermal sensitivity tester ; Gerät zur Bestimmung der Temperatur- und Schmerzempfindlichkeit
No full textRelationship between nondestructive firmness measurements and commercially important ripening fruit stages for peaches, nectarines and plums
No full textFruit firmness measurement is a good way to monitor fruit softening and to predict bruising damage during harvest and postharvest handling. Ripening protocols traditionally utilize a destructive penetrometer-type fruit firmness measure to monitor ripening. Until recently, methods of assessing fruit texture properties nondestructively were not commercially available. The nondestructive Sinclair iQ™ firmness tester was investigated to monitor ripening and predict bruising susceptibility in stone fruit. This work was carried out on four peach, three plum, and five nectarine cultivars over two seasons. The correlations between destructive and nondestructive firmness measurements were significant (p-value = 0.0001), although too low for commercial applications as they varied from r2 = 0.60–0.71 according to fruit type. Using a different approach, the relationship between destructive and nondestructive firmness measures was characterized in terms of segregating these fruit according to their stages of ripening. This was done by using discriminant analysis (66–90% agreement in ripeness stage classification was observed in validation tests). Discriminant analysis consistently segregated nondestructive firmness measured fruit into commercially important classes (“ready to eat”, “ready to buy”, “mature and immature”). These represented key ripening stages with different bruising potentials and consumer acceptance. This work points out the importance to relate nondestructive measurements directly to important commercial physiological stages rather than to correlate them with the current standard penetrometer values. Thus, destructive and nondestructive firmness measurements can be directly used to identify the stage of ripeness and potential susceptibility to bruising during postharvest changes. Further work is recommended to evaluate the performance of this nondestructive sensor in segregating fruit according to their stage of ripeness under packinghouse or processing plant conditions
Improvements of single sheet testers for measurement of 2-D magnetic properties up to high flux density
No full textDue to structural limitation, the currently proposed apparatus based on a single sheet tester (SST) cannot measure magnetic properties along arbitrary directions (so-called 2-D magnetic properties) of silicon steel at high flux densities. In this paper, significant improvements are carried out on magnetizing windings and auxiliary yokes of a double excitation type of SST. Furthermore, crosswise overlapped H-coils are introduced so that even an ordinary single-excitation type of SST can be applicable to the measurements of 2-D properties. It is demonstrated that 2-D magnetization property up to 1.9 T can be measured by using the newly developed SST's</p
Impact tester compliance: significance, sensitivity and evaluation
No full textThe compliance is very sensitive to internal mechanical factors concerning the load system, as the hammer, the tup, the anvils and the base to foundation attachement. In order to verify the sensitivity of compliance measurements, a series of experimental tests has been performed, with artificial and real defect located at the most critical parts. In order to overcame the need of an instrumented impact tester an instrumented specimen has been prepared, together with its electronic system for impact tester compliance measurement. The compliance measurement, after verification of the impact tester with direct and indirect methods, as per ASTM E 23 or ISO R 442, can be helpful for verification of the good working condition of the pendulum and for the detection of onset of anomalies
Plants of prairies west of Itasca Park
No full textTester, John R.; Bray, J. R.; Thorne, R. F.. (1968). Plants of prairies west of Itasca Park. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/172531
Poppet valve tester
No full textTester investigates fundamental factors affecting cyclic life and sealing performance of valve seats and poppets. Tester provides for varying impact loading of poppet against seat and rate of cycling, and controls amount and type of relative motion between sealing faces of seat and poppet. Relative motion between seat and poppet can be varied in three modes
His+ reversions Caused in Salmonella typhimurium by different types of ionizing radiation
No full textThe yield of his+ reversions in the Ames Salmonella tester strain TA2638 has been determined for 60Co γ rays, 140 kV X rays, 5.4 keV characteristic X rays, 2.2 MeV protons, 3.1 MeV α particles, and 18 MeV/U Fe ions. Inactivation studies were performed with the same radiations. For both mutation and inactivation, the maximum effectiveness per unit absorbed dose was obtained for the characteristic X rays, which have a dose averaged linear energy transfer (LET) of roughly 10 keV/μm. The ratio of the effectiveness of this radiation to γ rays was 2 for inactivation and about 1.4 for the his+ reversion. For both end points the effectiveness decreases substantially at high LET, i.e., for the α particles and the Fe ions. The composition of the bottom and the top agar was the one recommended by Maron and Ames [Mutat. Res. 113, 173-215 (1983)] for application in chemical mutagenicity tests. The experiments with the less penetrating radiations differed from the usual protocol by utilization of a technique of plating the bacteria on the surface of the top agar. As in an earlier study [Roos et al., Radiat. Res. 104, 102-108 (1985)] greatly enhanced yields of mutations, relative to the spontaneous reversion rate, were obtained in these experiments by performing the irradiations 6 h after plating, which differs from the conventional procedure to irradiate the bacteria shortly after plating
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