Parameters measurement result

Xem 1-20 trên 78 kết quả Parameters measurement result
  • There are several factors contribute to the decline of network performance, which their indications can be observed from quality changes in Quality of Service (QoS) parameters measurement result. This research proposes recommendations in improving network performance towards the changes of QoS parameters quality.

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  • I have been associated with uncertainty calculations for quite sometime. Asia Metrology Program (APMP) took interest in unification of expressing the measurement results along with uncertainty. In those days the uncertainty components were divided according to source of errors. The errors were named as random and systematic errors. Hence components of uncertainty were named random uncertainty and systematic uncertainty. Around 1980, BIPM took initiative by circulating questioners to the countries who were members of Metre Convention.

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  • The Texas Instrument TMS320VC5510 DSK’s calculation abilitiy with different program languages is investigated for minimum the DSP’s measurement time. The steps of Monte Carlo simulations embedded into the DSK’s flash through the DSK’s JTAG interface for optical parameters measurement including absorption coefficient µ a , scattering coefficient µ s and anisotropy g are presented. The obtained results for diluted milk standard samples are also reported.

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  • Objectives: To determine lung functional parameters of 117 patients with stable chronic obstructive pulmonary disease (COPD) at 103 Hospital from October, 2013 to March, 2016 by plethysmography and to study the relationship among these parameters with stages of stable COPD. Methods: A prospective and cross-descriptive study.

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  • This paper presents preliminary results of actual measured and simulated performances of a first year 806.52 kWp grid connected photovoltaic power plant located at Assa, southern Morocco (28.63°N - 9.47°W). The PV system consists of 8 AICHI on-grid PV inverters, 100 kVA each and 3432 SHARP Brand 235 kWp modules. The plant is divided into two groups of 4 inverters, each inverter is supplied by a PV field consisting of 33 strings of 13 seriesconnected modules facing south at a fixed tilt of 20°.The data presented in this study were monitored during the first year of operation of the plant.

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  • The aim of this study is to assess the early clinical, hemodynamic, and echocardiographic changes after elective isolated mitral valve replacement or concomitant mitral valve replacement and aortic valve replacement in patients with PH. The study included patients with baseline systolic pulmonary artery pressure (PAPs) of at least 35 mmHg measured by echo who underwent elective MVR and/or aortic valve replacement (AVR).

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  • The paper proposes the selection of optimum parameters for the measurement system. Experimental results determine the optimum conditions for the system at the measuring range (w x h = 400 mm x 300 mm) to obtain the best z-resolution of 0.67 mm.

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  • To deal with this problem, the paper proposes a new approach based on the combination of different measured drivingpoint impedances and relevant analysis of the duality-based equivalent circuit in determining frequency dependent parameters associated with transformer windings. Results show that the physical FRA interpretation can be reasonable obtained for the test transformer in low and medium frequency range.

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  • The measured a is successively used to determine the experimental value of the effective delayed neutron fraction as well. According to the experimental results, beff of the HWZPR reactor under study is equal to 7.84e3. This value is finally used to validate the calculation of the effective delayed neutron fraction by the Monte Carlo methods that are discussed in the document.

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  • In this regard, the operating team's SA in a conventional and digital MCR should be measured in order to assess whether the new design features implemented in a digital MCR affect this parameter. This paper explains the team SA measurement method used in this study and the results of applying this measurement method to operating teams in different MCR environments. The paper also discusses several empirical lessons learned from the results.

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  • This study was conducted in Thuy Phuong Pig Research Center (TPPRC), Vietnam to determine the genetic parameters of four reproductive traits including numbers born alive (NBA), litter birth weight (LBW), number of weaned pigs (NW) and litter weaning weight (LWW). The reproductive performance of 254 sows of VCN03 breed from four generations between 2010 and 2017 was collected and used in this study. Data from NBA, LBW, NW and LWW were subjected to repeated-measures of ANOVA in PROC MIXED in SAS with four reproductive traits and generations as fixed factors.

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  • In order to contribute to the valorization of non-timber products from the Congo, the aim of the study was to contribute to the nutritional value of P. aquilinum fern. The harvested fern plants were previously dried by solar drying for up to 4 hours and finally crushed to obtain a powder after sieving. This powder made it possible to study the biochemical and physicochemical characteristics of fronds. The results of the biochemical analysis revealed moisture contents of 13.87 ± 0.17%; the ash content of 9.25 ± 0.49%; lipid content 7.07 ± 0.41%, and that of soluble sugars 0.54 ± 0.021.

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  • The research on hydrophobic and superhydrophobic surface has been extensively studied by many groups around the world. The parameter determined the wetting ability of a surface is value of water contact angle. Measuring contact angle become extremely important for both academic and industrial field. In this study, we propose a simple and affordable methodology to calculate contact angle. This approach used portable microscope of Koolertron for droplet images capturing and free software of ImageJ for contact angle fitting and calculation.

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  • This paper presents the preliminary analysis of ground-based measurements solar data in Umlazi, South Africa. From this analysis, data statistics and statistic models for the global horizontal irradiance (GHI), the direct horizontal irradiance (DHI) and the ultraviolet radiations (UVR) are obtained for Durban and surrounding areas. Those results can be used in the design and analysis of solar systems and can also be used as referential parameters for further assessment of solar energy potentials for those areas.

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  • Rheological characteristics of honey-whole grain cereal extrudates as influenced by varying extrusion processing conditions were studied. Honey, blended at various level with the cereal flours at 14 and 17% feed moisture, was subjected to extrusion processing at different extrusion temperatures. The rheological properties of the resultant extrudates were measured by rapid visco analyzer. It was observed that all the processing conditions significantly affected the rheological properties of the extrudates. Increased extrusion temperature resulted in decreased viscosity of the extrudates.

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  • In this study, adiabatic temperature rise for three normal-strength concrete mixtures were experimentally determined using an adiabatic calorimeter. The hydration parameters including the time and slope parameters, and the total heat (Qc) of the concrete samples were also computed using the measured adiabatic temperature rise and the curve fitting method. The results show that the degree of hydration increases with the decrease of the w/c ratio in the mixture.

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  • Most phylogeny analysis methods based on molecular sequences use multiple alignment where the quality of the alignment, which is dependent on the alignment parameters, determines the accuracy of the resulting trees. Different parameter combinations chosen for the multiple alignment may result in different phylogenies.

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  • An experiment was conducted to study results of destructive analysis in developed rice varieties during Rabi 2014-15.Results showed that leaf area measurement, dry matter and root parameters like root length, root volume and root weight were highest in the variety RNR 15038 respectively and lowest in Swarna, HR-12 and TN-1.

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  • The correction accuracy of the Taylor Spatial Frame (TSF) fixator depends considerably on the precise determination of the mounting parameters (MP). Incorrect parameters result in secondary deformities that require subsequent corrections.

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  • Because of the potential public health implications, the importance of toxic air pollutants in ambient air has been recognized to some degree for many years. Efforts to “regulate” human activities resulting in the production of ambient air pollutants probably date back many centuries, even as the combustion of fossil fuels and air pollution from other organized human activities began having a noticeable impact on the environment.

    pdf228p crazy_sms 10-05-2012 92 36   Download



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