scholarly journals Comparison of Three Nondestructive Methods for Determination of Vegetable Surface Area

HortScience ◽  
2002 ◽  
Vol 37 (3) ◽  
pp. 550-553 ◽  
Author(s):  
N.H. Furness ◽  
A. Upadhyaya ◽  
M.K. Upadhyaya
Keyword(s):  
Image Analysis ◽  
Surface Area ◽  
Linear Method ◽  
Repeated Measurements ◽  
Replica Method ◽  
Analysis Method ◽  
Surface Areas ◽  
Individual Product ◽  
Analyze Data

Surface areas of differently shaped vegetables, namely beet (Beta vulgaris L.), cucumber (Cucumis sativus L.), carrot (Daucus carota L.), and parsnip (Pastinaca sativa L.) were determined by Baugerod's (a linear) method, a shrink-wrap replica method, and image analysis. Values obtained using these methods did not differ significantly for carrots and beets. Surface area values obtained using image analysis were higher than those obtained by Baugerod's method for parsnips (by 23.5%), and higher than Baugerod's and shrink-wrap replica methods for cucumbers (by 11.3% and 12.6%, respectively). A method was considered reproducible if surface area values from five measurements on the same product did not differ significantly (P ≤ 0.05). Surface area values for an individual product varied in the range of 4.7% for Baugerod's method for parsnips, and 6.6% for the shrink wrap replica method for carrots. No significant variation was observed for any of the vegetables when repeated measurements were made using the image analysis method. Image analysis offers rapidity, lack of adverse effect on produce, and the ability to collect and analyze data simultaneously. However, in absence of the necessary equipment for image analysis, Baugerod's method may be used for a product symmetrical around its central axis, after comparing it with a more direct procedure (e.g., shrink-wrap replica method).

Studies on the surface area of zeolites, as determined by physical adsorption and X-ray crystallography

1968 ◽  
Vol 46 (10) ◽  
pp. 1695-1701 ◽  
Author(s):  
D. J. C. Yates
Keyword(s):  
Surface Area ◽  
Physical Adsorption ◽  
Independent Method ◽  
Linear Portion ◽  
Adsorbed Molecules ◽  
X Ray ◽  
X Ray Crystallography ◽  
Surface Areas

The determination of the surface areas of zeolites is discussed. It is shown that it is incorrect to use the multilayer isotherm method of Brunauer, Emmett, and Teller for solids where only little more than one monolayer can be adsorbed, in cavities little larger than the adsorbed molecules. The areas of such materials can, however, be determined from the beginning of the linear portion of their isotherms (point B). In addition, X-ray spectra can provide an independent method of measuring changes in the surface areas of zeolites.

A study of using a simple 2D image analysis method to monitor the surface area of hypertrophic scars on hand during pressure therapy

Burns ◽  
2020 ◽  
Vol 46 (7) ◽  
pp. 1548-1555
Author(s):  
Annie Yu ◽  
Kit Lun Yick ◽  
Sun Pui Ng ◽  
Joanne Yip ◽  
Ying Fan Chan
Keyword(s):  
Image Analysis ◽  
Surface Area ◽  
Hypertrophic Scars ◽  
Analysis Method ◽  
Image Analysis Method ◽  
Pressure Therapy

scholarly journals Inter-Operator Reliability of Dental Morphometric Measurements

2018 ◽  
Vol 3 (4) ◽  
pp. 225-228
Author(s):  
Bernadette Kerekes-Máthé ◽  
Csaba Dudás ◽  
Nóra Csergő ◽  
Krisztina Mártha
Keyword(s):  
Image Analysis ◽  
Measurement Errors ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Repeated Measurements ◽  
Analysis Method ◽  
Image Analysis Method ◽  
Morphometric Measurements ◽  
Occlusal View ◽  
Intraclass Correlation Coefficients

Abstract Background: Measurement-based studies are prone to measurement errors, which occur at the same operator or between different operators during repeated measurements of the same sample. Aim of the study: To assess the inter-operator reliability of morphometric measurements using a bidimensional image analysis method. Material and methods: Eight study models have been selected, images of teeth and models were taken from vestibular and occlusal view. The following parameters were measured individually by three, previously trained operators: mesio-distal, occluso-gingival, and vestibulo-oral dimensions, vestibular and occlusal area, depth of palatal arch, arch breadth, arch circumference, and arch length. Intraclass correlation coefficients were calculated for each measurement. Results: The reliability of the measurements showed high degrees, all values being higher than 0.8. Conclusions: Dental morphometric measurements done by 2D image analysis can be performed by multiple operators with an excellent reliability.

scholarly journals 205 Non-destructive Surface Area Determination of Vegetables

HortScience ◽  
2000 ◽  
Vol 35 (3) ◽  
pp. 426C-426
Author(s):  
M.K. Upadhyaya ◽  
N.H. Furness
Keyword(s):  
Image Analysis ◽  
Surface Area ◽  
Area Measurement ◽  
Image Analysis Technique ◽  
Analysis Technique ◽  
Surface Area Measurement ◽  
Non Destructive ◽  
Surface Area Determination ◽  
Area Determination

Surface area of cucumbers, carrots, parsnips, and beets was determined using the following non-destructive methods: Baugerod's method, Baugerod's method with inclusion of a factor correcting for substitution of weight for volume in the formula, and a novel image analysis method. Accuracy of the methods was ascertained by comparison with a direct shrink-wrap replica method of surface area measurement. Vegetables ranged in shape from cylindrical (cucumber and carrot) to conical (parsnip and beet). No difference in accuracy among methods of surface area determination was detected for carrots or beets. Baugerod's method and the image analysis technique differed significantly from the direct shrink-wrap replica technique for surface area determination of parsnips and cucumbers, respectively. Inclusion of a correction factor in Baugerod's method did not increase the accuracy of this method for any of the vegetables. The precision and repeatability of each method was determined by repeated measures analysis. Baugerod's method lost precision and repeatability for the conically shaped vegetables. Conversely, the shrink-wrap replica method lost precision and repeatability for the cylindrically shaped vegetables. The image analysis technique was precise and highly repeatable over the range of vegetable shapes. The development of a rapid, accurate, and precise non-destructive method of surface area measurement using image analysis techniques will provide a useful tool in the physiological study of vegetable products. Applicability of such a method over a range of vegetable shapes will be of additional value.

Quantitative determination of sibutramine in adulterated herbal slimming formulations by TLC-image analysis method

2012 ◽  
Vol 219 (1-3) ◽  
pp. 96-100 ◽  
Author(s):  
Panadda Phattanawasin ◽  
Uthai Sotanaphun ◽  
Tasamaporn Sukwattanasinit ◽  
Jariya Akkarawaranthorn ◽  
Sarunyaporn Kitchaiya
Keyword(s):  
Image Analysis ◽  
Quantitative Determination ◽  
Analysis Method ◽  
Image Analysis Method

Rapid determination of histamine in fish by thin-layer chromatography-image analysis method using diazotized visualization reagent prepared withp-nitroaniline

2018 ◽  
Vol 10 (27) ◽  
pp. 3386-3392 ◽  
Author(s):  
Hui Yu ◽  
Daina Zhuang ◽  
Xingjuan Hu ◽  
Shuang Zhang ◽  
Zhiyong He ◽  
...  
Keyword(s):  
Image Analysis ◽  
Thin Layer ◽  
Thin Layer Chromatography ◽  
Analytical Method ◽  
Rapid Determination ◽  
Analysis Method ◽  
Image Analysis Method ◽  
Imagej Software ◽  
Layer Chromatography

A novel analytical method for rapid determination of histamine in fish involves methanol extraction, manual spotting, thin-layer chromatography (TLC) for less than 15 min, visualization by diazotizedp-nitroaniline reagent, and quantitation by image analysis using the ImageJ software.

USE OF THE CATHODE RAY OSCILLOGRAPH IN THE MEASUREMENT OF METAL AREAS AND THE KINETICS OF ELECTRODE REACTIONS

1949 ◽  
Vol 27b (4) ◽  
pp. 353-360
Author(s):  
C. A. Winkler ◽  
A. T. Hutcheon
Keyword(s):  
Surface Area ◽  
Direct Current ◽  
Surface Areas ◽  
Electrode Reactions ◽  
Silver Amalgam ◽  
Rate Of Increase ◽  
Three Stages ◽  
Current Amplification ◽  
Kinetics Of

A commercial type cathode ray oscillograph has been used in conjunction with three stages of direct current amplification to give suitable voltage amplification in the range 0.001 to 1 v. The effect of traces of grease in diminishing the measured surface area of silver amalgam has been observed. Curves are shown for the determination of cadmium surface areas and rate of increase of cadmium polarization.

Sign in / Sign up

Export Citation Format

Share Document