The Experts below are selected from a list of 315 Experts worldwide ranked by ideXlab platform

Michael A. Fullen - One of the best experts on this subject based on the ideXlab platform.

  • Pedodiversity of three experimental stations in Estonia
    Geoderma Regional, 2016
    Co-Authors: Kaire Rannik, Raimo Kõlli, Liia Kukk, Michael A. Fullen
    Abstract:

    Abstract The soil cover composition and properties of three experimental stations of Estonia - Jogeva (JEA), Kuusiku (KEA) and Olustvere (OEA) - were analysed in detail (by soil type subdivisions - species and varieties) in relation to soil forming ecology and land management practices. The arable soil covers' pedodiversity and taxonomical conversion of Estonian Soil Classification into the World Reference Base for Soil Resources system were analysed on the basis of seven arable land parcels. The soil cover of JEA was relatively homogenous by soil species. The soil cover of KEA was much more heterogeneous, with five contrasting soil species in terms of soil genesis and with four stages in soil moisture regimes. OEA's soil cover consisted predominantly from Glossic Retisols with topsoils' texture - sandy loam. The texture of JEA is predominantly loamy and has, therefore, optimal agronomical properties. The texture of OEA is of a lower quality, by approximately one stage. The texture of KEA varies considerably (from sand to loam). Clay-rich textures are absent in all three EAs. In terms of soil species and properties, JEA is a representative of Central Estonian, OEA of South Estonian and KEA of North Estonian pedo-ecological conditions. All three field experimental areas are representative of the arable soils of the eastern part of the North European plain. The detailed research on soil cover is a good base for further researches on soils' humus and agrochemical status, productivity and suitability for crops, and for the evaluation of soils' environmental protection ability.

Petit Jean Maxime - One of the best experts on this subject based on the ideXlab platform.

Haibin Qu - One of the best experts on this subject based on the ideXlab platform.

  • control the effects caused by noise parameter fluctuations to improve pharmaceutical process robustness a case study of design space development for an ethanol precipitation process
    Separation and Purification Technology, 2014
    Co-Authors: Xingchu Gong, Yao Li, Haibin Qu
    Abstract:

    Abstract To provide a new method to develop a design space to improve the robustness of drug manufacturing processes based on the control of noise parameter influences, the ethanol precipitation process of Danhong injection was investigated as a sample. Water content in the concentrated extract (WCCE), the concentration of ethanol (CEA), and the amount of ethanol added (AEA) are three adjustable parameters. The effects of refrigeration temperature (RT) was investigated on three levels for simulating its fluctuations. The models between parameters and process critical quality attributes (CQAs) were obtained using a simplified central composite design with determination coefficients more than 0.84. The decrease of RT led to lower active ingredient recoveries and higher DMR. The increase of CEA and the decrease of WCCE caused more precipitation. The decrease of CEA or AEA resulted in higher active ingredient recoveries. The design space was calculated using an exhaustive search-Monte Carlo method and normal operation ranges were also obtained. The results of verification experiments agreed well with prediction results. The proposed method can be used to develop a design space applicable in a larger scale manufacturing process with the negative effects caused by the fluctuations of noise parameters controlled.

Kaire Rannik - One of the best experts on this subject based on the ideXlab platform.

  • Pedodiversity of three experimental stations in Estonia
    Geoderma Regional, 2016
    Co-Authors: Kaire Rannik, Raimo Kõlli, Liia Kukk, Michael A. Fullen
    Abstract:

    Abstract The soil cover composition and properties of three experimental stations of Estonia - Jogeva (JEA), Kuusiku (KEA) and Olustvere (OEA) - were analysed in detail (by soil type subdivisions - species and varieties) in relation to soil forming ecology and land management practices. The arable soil covers' pedodiversity and taxonomical conversion of Estonian Soil Classification into the World Reference Base for Soil Resources system were analysed on the basis of seven arable land parcels. The soil cover of JEA was relatively homogenous by soil species. The soil cover of KEA was much more heterogeneous, with five contrasting soil species in terms of soil genesis and with four stages in soil moisture regimes. OEA's soil cover consisted predominantly from Glossic Retisols with topsoils' texture - sandy loam. The texture of JEA is predominantly loamy and has, therefore, optimal agronomical properties. The texture of OEA is of a lower quality, by approximately one stage. The texture of KEA varies considerably (from sand to loam). Clay-rich textures are absent in all three EAs. In terms of soil species and properties, JEA is a representative of Central Estonian, OEA of South Estonian and KEA of North Estonian pedo-ecological conditions. All three field experimental areas are representative of the arable soils of the eastern part of the North European plain. The detailed research on soil cover is a good base for further researches on soils' humus and agrochemical status, productivity and suitability for crops, and for the evaluation of soils' environmental protection ability.

Norihiko Maeda - One of the best experts on this subject based on the ideXlab platform.