• Title/Summary/Keyword: Quantitative Analysis

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Quantitative Analysis of ${\mu}$-CT about Neo-Bone Regeneration on Mouse Calvarial Defected Model (신생 뼈의 재생에 관한 마우스 두개골 결손모델 시 마이크로 시티의 정량적 분석법)

  • Jung, Hong-Moon
    • Korean Journal of Digital Imaging in Medicine
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    • v.15 no.1
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    • pp.33-38
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    • 2013
  • Bone is so crucial anatomy for human body. Many researchers study deep into a subject about bone regeneration. There is no standard analysis for quantitative Neo-bone regeneration on calvarial defected model. Micro CT is so useful method to quantitative analysis of Neo-bone regeneration. This study was show that how to quantitative analysis of Neo-bone regeneration with ${\mu}-CT$ Micro CT was possible to quantitative analysis for Neo-bone regeneration on Calvarial defected model. futhermore Not only was Micro CT possible for qualitative analysis but quantitative analysis on the mouse calvarial model. This study will provide bone biology researchers with accurate quantitative analysis.

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The Role of NMR in the Field of Quantitative Analysis

  • Lee, Sueg-Geun
    • Journal of the Korean Magnetic Resonance Society
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    • v.20 no.3
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    • pp.87-94
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    • 2016
  • Although NMR technique has been using in many areas of chemistry, its merit on quantitative analysis seems not to acknowledge greatly because of the many inferior intrinsic aspects, particularly its sensitivity. Recently, new NMR techniques, high-field NMR, and demands for cutting edge techniques of analysis, however, seem to change the role of NMR spectroscopy in this field. This review shows the application of NMR development in quantitative analysis and will discuss the basic idea, limitations, and pitfalls. Then it will show you several successful applications applied in quantitative analysis and you will see how useful and accurate method it is.

A Technique for the Quantitative Analysis of the Noise Jamming Effect (잡음재밍 효과에 대한 정량적 분석 기법)

  • Kim, Sung-Jin;Kang, Jong-Jin
    • Journal of the Korea Institute of Military Science and Technology
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    • v.8 no.4 s.23
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    • pp.91-101
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    • 2005
  • In this paper, a technique for the quantitative analysis of the noise jamming effect is proposed. This technique based upon the mathematical modeling for noise jammers and the probability theory for random processes analyses the jamming effect by means of the modeling of the relationship among jammer, radar variables and radar detection probability under noise jamming environment. Computer simulation results show that the proposed technique not only makes the quantitative analysis of the jamming effect possible, but also provides the basis for quantitative analysis of the electronic warfare environment.

Fluorometric Quantitative Analysis of Al(III) Ion Using 5-Methoxy-2-phenyliminomethylphenol

  • Kim, Sun-Deuk;Lee, Hye-Won
    • Bulletin of the Korean Chemical Society
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    • v.30 no.5
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    • pp.1026-1030
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    • 2009
  • A novel Schiff base ligand (N, O system) 5-methoxy-2-phenyliminomethylphenol ($5-CH_3O-PMP$) was synthesized. Using the synthesized ligand as a fluorescent reagent, a fluorometric method was developed for the quantitative analysis of Al(III) ion. The quantitative analysis of Al(III) ion was performed by making the complex compound between Al(III) ion and $5-CH_3O-PMP$ in ethanol-water solution (85/15, v/v, pH 6.2). The excitation wavelength (${\lambda}em$) of the complex compound was 397 nm while the emmision wavelength (${\lambda}em$) was 498 nm. The quantitative analysis of Al(III) ion was carried out by estimating the fluorescence intensity. The various calibration curves were used for the quantitative analysis in the range of 0.27$\sim$27 ng/mL Al(III) ion concentrations. The detection limit was 0.027 ng/mL. Using the fluorometric method developed in this study, satisfying results were obtained from various samples such as tap water, hot spring water, river water, sea water and waste water, which contained considerable amounts of interfering ions.

Quantitative Analysis for the Quality Evaluation of Scutellariae Radix by HPLC/UVD

  • Jeong, Su-Yang;Moon, Dong-Cheul;Son, Kun-Ho;Son, Jong-Keun;Min, Byung-Sun;Woo, Mi-Hee
    • Natural Product Sciences
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    • v.17 no.4
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    • pp.321-327
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    • 2011
  • In this study, quantitative analysis was developed using HPLC/UVD for the quality evaluation of Scutellariae Radix. For quantitative analysis, six major bioactive compounds were assessed. The separation conditions employed for HPLC/UVD were optimized using Phenomenex $C_{18}$ column ($250{\times}4.6$ mm, 5 ${\mu}m$) with a gradient of solvent A (1% acetic acid of $H_2O$) and solvent B (acetonitrile : methanol : acetic acid = 70 : 30 : 1) as the mobile phase at a flow rate of 1.0 mL/min and a detection wavelength of 275 nm. These methods were fully validated with respect to linearity, accuracy, precision and recovery. The HPLC/UVD method was applied successfully to the quantification of six major compounds in the extract of Scutellariae Radix. The results indicate that the established HPLC/UVD method is suitable for the quantitative analysis and quality control of multicomponents in Scutellariae Radix.

A Study for Influence Measurement of Error by Quantitative Analysis (정량적 분석에 의한 오류의 영향 측정에 관한 연구)

  • Lee, Eun-Ser
    • KIPS Transactions on Software and Data Engineering
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    • v.1 no.2
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    • pp.75-80
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    • 2012
  • There are many problems that cause the process improvement of software and hardware, personality errors during software development. This paper propose the quantitative analysis of error that removes and manages the system problems as well.

Comparison of Quantitative Analysis of Radioactive Corrosion Products Using an EPMA and X-ray Image Mapping

  • Jung, Yang Hong;Choo, Young Sun
    • Corrosion Science and Technology
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    • v.19 no.5
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    • pp.231-238
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    • 2020
  • Radioactive corrosion product specimens were analyzed using an electron probe microanalyzer (EPMA) and X-ray image mapping. It is difficult to analyze the composition of radioactive corrosion products using an EPMA due to the size and rough shape of the surfaces. It is particularly challenging to analyze the composition of radioactive corrosion products in the form of piled up, small grains. However, useful results can be derived by applying a semi-quantitative analysis method using an EPMA with X-ray images. A standard-less, semi-quantitative method for wavelength dispersive spectrometry. EPMA analysis was developed with the objective of simplifying the analytical procedure required. In this study, we verified the reasonable theory of semi-quantitative analysis and observed the semi-quantitative results using a sample with a good surface condition. Based on the validated results, we analyzed highly rough-surface radioactive corrosion products and assessed their composition. Finally, the usefulness of the semi-quantitative analysis was reviewed by verifying the results of the analysis of radioactive corrosion products collected from spent nuclear fuel rods.

Comparative Study of Contrast-Enhanced Ultrasound Qualitative and Quantitative Analysis for Identifying Benign and Malignant Breast Tumor Lumps

  • Liu, Jian;Gao, Yun-Hua;Li, Ding-Dong;Gao, Yan-Chun;Hou, Ling-Mi;Xie, Ting
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.19
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    • pp.8149-8153
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    • 2014
  • Background: To compare the value of contrast-enhanced ultrasound (CEUS) qualitative and quantitative analysis in the identification of breast tumor lumps. Materials and Methods: Qualitative and quantitative indicators of CEUS for 73 cases of breast tumor lumps were retrospectively analyzed by univariate and multivariate approaches. Logistic regression was applied and ROC curves were drawn for evaluation and comparison. Results: The CEUS qualitative indicator-generated regression equation contained three indicators, namely enhanced homogeneity, diameter line expansion and peak intensity grading, which demonstrated prediction accuracy for benign and malignant breast tumor lumps of 91.8%; the quantitative indicator-generated regression equation only contained one indicator, namely the relative peak intensity, and its prediction accuracy was 61.5%. The corresponding areas under the ROC curve for qualitative and quantitative analyses were 91.3% and 75.7%, respectively, which exhibited a statistically significant difference by the Z test (P<0.05). Conclusions: The ability of CEUS qualitative analysis to identify breast tumor lumps is better than with quantitative analysis.

Quantitative Analysis of Glycine Semen Nigra and Eucommiae Cortex for Standardization of GCSB-5 Preparation (생약복합제 GCSB-5의 품질 표준화를 위한 흑두 및 두충의 함량 분석)

  • Lee, Eun-Hee;Cha, Bae-Cheon
    • Korean Journal of Pharmacognosy
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    • v.40 no.1
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    • pp.18-24
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    • 2009
  • GCSB-5 preparation is a purified extract from a mixture six herbal medicines (Acanthopanacis Cortex, Achyranthis Radix, Saposhnikoviae Radix, Cibotii Rhizoma, Glycine Semen Nigra, Eucommiae Cortex) that have been widely used in traditional medicine to treat various bone disorders. This study was carried out to obtain the HPLC analysis method that can be used to establish quantitative analysis of Glycine Semen Nigra and Eucommiae Cortex for standardization of GCSB-5 preparation. HPLC analysis methods for the simultaneous determination of genistin (Glycine Semen Nigra) and geniposide (Eucommiae Cortex) were established for the quality control of herbal medicinal raw material and preparation. And validation of HPLC analysis methods were conformed for verification of HPLC methods by check to specificity, linearity, intra-day precision, inter-day precision and accuracy following ICH guideline. As the result of quantitative analysis, the contents of genistin and geniposide in the raw material of GCSB-5 preparation were 0.0426-0.0427 mg/g and 0.431-0.432 mg/g. And GCSB-5 preparation contained genistin of 0.0202-0.0203 mg/capsule and geniposide of 0.211-0.212 mg/capsule, respectively.