Determination of the liquidus temperature of tin using the heat pulse-based melting and comparison with traditional methods

Metrologia ◽  
2018 ◽  
Vol 55 (3) ◽  
pp. 334-349 ◽  
Author(s):  
Wukchul Joung ◽  
Jihye Park ◽  
Jonathan V Pearce
Keyword(s):  
Liquidus Temperature ◽  
Heat Pulse ◽  
Traditional Methods

Simultaneous Determination of Serum Cholesterol and Triglycerides after Preliminary Column Chromatography

1975 ◽  
Vol 21 (3) ◽  
pp. 428-431 ◽  
Author(s):  
Godfrey Moses ◽  
Edwin Olivero ◽  
Thomas F Draisey
Keyword(s):  
Phase Separation ◽  
Simultaneous Determination ◽  
Column Chromatography ◽  
Serum Cholesterol ◽  
Simultaneous Estimation ◽  
Traditional Methods ◽  
Metallic Oxides ◽  
Centrifugation Step ◽  
Stability Results

Abstract An isopropanolic extract of serum can be made suitable for the simultaneous estimation of cholesterol and triglycerides by passing it through a commercially-available chromatographic column containing activated metallic oxides in which alumina predominates. No centrifugation step nor phase separation is required. Use of the purified extract allows existing methods to be simplified and shortened without loss of reproducibility or stability. Results compare well with those obtained by traditional methods.

A heat pulse technique for the determination of small-scale flow directions and flow velocities in the streambed of sand-bed streams

2011 ◽  
Vol 25 (20) ◽  
pp. 3244-3255 ◽  
Author(s):  
Jörg Lewandowski ◽  
Lisa Angermann ◽  
Gunnar Nützmann ◽  
Jan H. Fleckenstein
Keyword(s):  
Heat Pulse ◽  
Small Scale ◽  
Pulse Technique ◽  
Flow Directions ◽  
Flow Velocities

Research on Method about Determination of Condition-Based Maintenance Objects by Quantitative Analysis

2014 ◽  
Vol 635-637 ◽  
pp. 2023-2028
Author(s):  
Xiang Zan ◽  
Shi Xin Zhang ◽  
Yi Zheng ◽  
Yan Chao Liu
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Regression Analysis ◽  
Quantitative Analysis ◽  
Essential Role ◽  
Condition Based Maintenance ◽  
Traditional Methods

As an essential role in determination of condition-based maintenance (CBM) objects ,necessity and applicability analysis are both important. Necessity analysis is first and applicability analysis is second is proposed. Due to shortcoming of traditional methods, a quantitative is proposed. The key of method are criticality evaluation based on Monte Carlo simulation and applicability analysis based on regression analysis, which can solve the problem short of unite standard and influence by subjective factors. The result shows the model works well.

scholarly journals A Simple System for the Rapid Determination of the Anaerobic Compensation Point of Plant Tissue

HortScience ◽  
1990 ◽  
Vol 25 (4) ◽  
pp. 480-482 ◽  
Author(s):  
Jeffrey A. Leshuk ◽  
Mikal E. Saltveit
Keyword(s):  
Plant Tissue ◽  
Rapid Determination ◽  
Compensation Point ◽  
Simple System ◽  
Traditional Methods ◽  
Time Required

A method is described for the rapid determination of the anaerobic compensation point (ACP) of plant tissue, i.e., the O2 concentration at which CO2 production is minimum. The rate of CO2 production is measured from tissue exposed to an exponentially declining O2 concentration produced by a flow of N2 into a dilution bottle initially containing air. Too rapid a rate of O2 decline produces abnormal data because of the time required for the tissue to respond to changes in O2 concentration. The ACP is easily determined from a plot of CO2 production vs. O2 concentration. Rates of CO2 production and ACPS calculated using the exponentially declining system are similar to those calculated from traditional methods of continuously holding tissue under various O2 concentrations.

scholarly journals A Rapid and Efficient Method for Determination of Fruit Peel Color

HortScience ◽  
2004 ◽  
Vol 39 (4) ◽  
pp. 842B-842
Author(s):  
Ignazio Infantino ◽  
Riccardo Lo Bianco*
Keyword(s):  
Image Analysis ◽  
Color Index ◽  
Visual Analysis ◽  
Color Image ◽  
Digital Camera ◽  
Critical Index ◽  
Fruit Peel ◽  
Traditional Methods ◽  
Peel Color

Peel color is a critical index of external fruit quality and consumer appreciation level. Traditional methods for determination of peel color are based on visual analysis or punctual measurements by colorimeter. In this study we present a method based on digital image analysis that integrates the accuracy of an interactive measurement and the efficacy of an image analysis that descibes entire sides of the fruit. A sample of apple, mandarin, grape, and peach fruit was photographed (each fruit on two opposite sides) with a digital camera for determination of peel color. Digital images were converted from RGB to CIE L*a*b* format, and color characteristics were indexed and quantified. The implemented method uses a reference color image cropped from the best fruit (interactively chosen) to calculate a color index for each fruit of the image set. The final index is the weighted sum of the number of pixels of the fruit, where pixels closer to the reference color (distance in the CIE L*a*b space) are considered more relevant. This color index gives integrated information on fruit color quantity (% of cover color) and quality (hue and saturation). The method represents a rapid and efficient way of determining color of the entire fruit surface and overcomes difficulties and approximation of traditional methods. A modification of the same method can be used to determine peel rugosity (mandarin) and average size and number of grape berries per bunch.

scholarly journals The heritability of tolerance to Alternaria dauci and Fusarium oxysporum in F1-hybrids of carrot

2021 ◽  
Author(s):  
Irina Balashova ◽  
◽  
Liubov Sokolova ◽  
Sergey Sirota ◽  
◽  
...  
Keyword(s):  
Fusarium Oxysporum ◽  
Dispersion Analysis ◽  
F1 Hybrids ◽  
Traditional Methods ◽  
F1 Hybrid ◽  
Different Types ◽  
Alternaria Dauci

Heritability the tolerance to Alternaria dauci and Fusarium oxysporum in prospective F1-hybrids of car-rot has been discussed in the paper. As QTLs isn’t reliable enough for the determination of tolerance heritability in F1-hybrid progenies, authors used traditional methods of inoculation applying step-by-step at every stage of plant’s development. Carrot lines have been evaluated carefully at different types of infection backgrounds, tol-erant lines and lines with weak sensitivity have been selected for crossings. F1-hybrids have been obtained and evaluated at the provocative infection background. Using dispersion analysis, the authors show, that tolerance to Alternaria dauci and Fusarium oxysporum has been inherited by the paternal type.

scholarly journals Assessment of PV Hosting Capacity in a Small Distribution System by an Improved Stochastic Analysis Method

Energies ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 5942
Author(s):  
Yu-Jen Liu ◽  
Yu-Hsuan Tai ◽  
Yih-Der Lee ◽  
Jheng-Lung Jiang ◽  
Chen-Wei Lin
Keyword(s):  
Distribution System ◽  
Stochastic Analysis ◽  
Power Flow ◽  
Distribution Systems ◽  
Solution Procedure ◽  
Sorting Algorithm ◽  
Analysis Method ◽  
Traditional Methods ◽  
Pv Inverter

PV hosting capacity (PVHC) analysis on a distribution system is an attractive technique that emerged in recent years for dealing with the planning tasks on high-penetration PV integration. PVHC uses various system performance indices as judgements to find an available amount of PV installation capacity that can be accommodated on existing distribution system infrastructure without causing any violation. Generally, approaches for PVHC assessments are implemented by iterative power flow calculations with stochastic PV deployments so as to observe the operation impacts for PV installation on distribution systems. Determination of the stochastic PV deployments in most of traditional PVHC analysis methods is automatically carried out by the program that is using random selection. However, a repetitive problem that exists in these traditional methods on the selection of the same PV deployment for a calculation was not previously investigated or discussed; further, underestimation of PVHC results may occur. To assess PVHC more effectively, this paper proposes an improved stochastic analysis method that introduces an innovative idea of using repetitiveness check mechanism to overcome the shortcomings of the traditional methods. The proposed mechanism firstly obtains all PV deployment combinations for the determination of all possible PV installation locations. A quick-sorting algorithm is then used to remove repetitive PV deployments that are randomly selected during the solution procedure. Finally, MATLAB and OpenDSS co-simulations implemented on a small distribution feeder are used to validate the performance of the proposed method; in addition, PVHC enhancement by PV inverter control is investigated and simulated in this paper as well. Results show that the proposed method is more effective than traditional methods in PVHC assessments.

scholarly journals Validation of optimal estimation method retrievals of middle atmospheric temperature

2018 ◽  
Vol 176 ◽  
pp. 03001
Author(s):  
Ali Jalali ◽  
R. J. Sica ◽  
Alexander Haefele
Keyword(s):  
Quantitative Determination ◽  
Estimation Method ◽  
Optimal Estimation ◽  
Atmospheric Temperature ◽  
Measurement Noise ◽  
Traditional Methods ◽  
Lidar Measurements ◽  
Random Uncertainties

OEM (Optimal Estimation Method) retrievals of temperature from lidar measurements are robust and practical (Sica and Haefele, 2015). They offer significant improvements over traditional methods. We will show a climatology of +360 nights of measurements from the Purple Crow Lidar and the improvements offered using an OEM, including the quantitative determination of the top altitude of the retrieval and the evaluation of the various systematic and random uncertainties due to measurement noise.

Sign in / Sign up

Export Citation Format

Share Document