Quantitative Technique

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G Vizzini - One of the best experts on this subject based on the ideXlab platform.

  • project risk management a deterministic Quantitative Technique for assessment and mitigation
    International Journal of Project Management, 2017
    Co-Authors: Cinzia Muriana, G Vizzini
    Abstract:

    Abstract The paper presents a deterministic Technique for assessing and preventing project risks, by determining the risk of the Work Progress Status. Firstly, the performance of the input factors, namely the costs, quality, and time, are detected, that reflect the Iron Triangle of the Project Management. As each phase ends, the actual values of the input factors are detected and compared with that planned, and corrective actions are taken for considering the impact of the actual performances on the overall project. Thus, the current risk degree of the project is determined through the Weighted Sum Method. If it is higher than planned, preventive actions are taken, in order to mitigate the risk of the entire project. Practical applications of the Technique relate to routine projects and those cases in which the schedule/costs/requirements are to be defined in the planning phase, and deviations are detected in the progress phase.

Philippe Legrand - One of the best experts on this subject based on the ideXlab platform.

  • Quantitative analysis of water-soluble vitamins by ATR-FTIR spectroscopy
    Food Chemistry, 1998
    Co-Authors: C Wojciechowski, Nathalie Dupuy, Jean -pierre Huvenne, Philippe Legrand
    Abstract:

    HPLC and microbiology are the methods traditionally employed to control the vitamin content in food mixtures. However, considerations of cost, time of analysis per sample and complexities involved in the Technique have hampered the acceptance of those methods for raw materials analysis. Fourier Transform Infrared (FTIR) spectroscopy has substantial potential as a Quantitative quality control tool for the food industry. FTIR analysis methods are convenient, rapid, accurate, and in conjunction with Attenuated Total Reflectance (ATR) technology , simplify sample handling. The advantage of choosing FTIR as a Quantitative Technique lies in its ability to readily carry out multicomponent analysis in association with software such as Partial Least Squares (PLS) regression. Results presented here were obtained from water-soluble vitamins (Bl, B2, B6 and Nia-cin) mixtures diluted into a glucose matrix without any chemical extraction.

Cinzia Muriana - One of the best experts on this subject based on the ideXlab platform.

  • project risk management a deterministic Quantitative Technique for assessment and mitigation
    International Journal of Project Management, 2017
    Co-Authors: Cinzia Muriana, G Vizzini
    Abstract:

    Abstract The paper presents a deterministic Technique for assessing and preventing project risks, by determining the risk of the Work Progress Status. Firstly, the performance of the input factors, namely the costs, quality, and time, are detected, that reflect the Iron Triangle of the Project Management. As each phase ends, the actual values of the input factors are detected and compared with that planned, and corrective actions are taken for considering the impact of the actual performances on the overall project. Thus, the current risk degree of the project is determined through the Weighted Sum Method. If it is higher than planned, preventive actions are taken, in order to mitigate the risk of the entire project. Practical applications of the Technique relate to routine projects and those cases in which the schedule/costs/requirements are to be defined in the planning phase, and deviations are detected in the progress phase.

Kunlun Huang - One of the best experts on this subject based on the ideXlab platform.

  • A novel Quantitative Technique in detecting stacked genetically modified plants by fluorescent-immunohistochemistry
    Journal of Food Composition and Analysis, 2020
    Co-Authors: Ying Shang, Boyang Zhang, Liye Zhu, Kunlun Huang
    Abstract:

    Abstract Stacked genetically modified organisms (GMOs) are gaining popularity for their ability to enhance production efficiency and improve functional properties. Due to different labeling requirements across many countries, the detection and quantification of stacked GMO content is an important concern. Although existing methods can detect pure stacked GMOs, they are considerably less efficient at identifying material that contains the stacked GMO and its single-trait “parent” GM lines. Immunohistochemistry possesses superior specificity and sensitivity in detecting the target, especially proteins. As a result, a novel Quantitative Technique to detect stacked GMO was developed. Two fluorescent antibodies hybridized with two specific proteins, which were expressed by the single-trait “parents” separately, were employed. By observing whether both of the two fluorescent signals existed in the same cell, the stacked GMO could be easily detected. By calculating the fluorescent signals, quantification could be determined. This method reduces errors and the non-specificity caused by PCR-based methods, and is widely applicable in the Quantitative and qualitative detection of stacked GMOs. In sum, it represents a new method for high throughput detection.

Michael P Parrella - One of the best experts on this subject based on the ideXlab platform.

  • Quantitative assessment of insect olfactometer performance by experimental flow analysis
    Biological Control, 1996
    Co-Authors: Michael P Parrella, Kevin M. Heinz, D K Giles
    Abstract:

    Abstract Biocontrol organisms respond to olfactory cues with behavior which can affect their efficacy as pest control agents. Investigations into olfactory stimuli and responses often use four-armed olfactometers for laboratory experiments. Performance evaluations of the olfactometers have generally been qualitative and based on visual assessment. A Quantitative Technique for characterizing the air flow and gas mixing in a four-armed olfactometer was developed. Ethylene gas was injected into the flow stream for each channel of the olfactometer. Samples of air at various locations in the olfactometer chamber were drawn through hypodermic probes and the concentration of ethylene in the samples were determined by gas chromatography. Flow boundaries between adjacent channels were not distinct and mixing between channels was observed, although concentration spatial gradients were high in the boundary regions. Mixing increased as flow neared a central outlet. Gross assessments of organism behavior in olfactometers appear valid in spite of flow mixing.