Sökning: "Ge Bai"

Hittade 3 avhandlingar innehållade orden Ge Bai.

  1. 1. Epidemiological studies on frailty and its associations with mortality, dementia, and polypharmacy

    Författare :Ge Bai; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Frailty describes the status of decreased physiological reserves and increased vulnerability to adverse outcomes. As the aging population increases, frailty has become an important public health concern. However, longitudinal studies disclosing the associations of frailty with adverse outcomes over the life course are limited. LÄS MER

  3. 2. Enhancing the stability of probiotics: Freeze-drying and encapsulation

    Författare :Shuai Bai; Avdelningen för livsmedel och läkemedel; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; freeze-drying; lyophilization; L.ruteri; Probiotics; Lyoprotectant; Structure; Encapsulating material; Pore size; Material thickness; SEM; Tomography; Storage stability; Amorphous sugars; Glass transition temperature; DSC;

    Sammanfattning : This research dives into the intricate world of freeze-drying, an essential process in pharmaceutical and probiotic industries, to better understand the factors affecting probiotic stability during storage. The process of freeze-drying and the composition of freeze-dried products significantly affect the stability of probiotics, yet factors such as the material’s encapsulation properties remain relatively unexplored, demanding further research. LÄS MER

  4. 3. A Study of the Swirling Flow Pattern when Using TurboSwirl in the Casting Process

    Författare :Haitong Bai; Mikael Ersson; Pär Jönsson; Yogeshwar Sahai; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; flow pattern; swirling flow; TurboSwirl; CFD; turbulence models; water model; flödesmönster; roterandeflöde; TurboSwirl; CFD; turbulensmodeller; vattenmodell; Metallurgical process science; Metallurgisk processvetenskap;

    Sammanfattning : The use of a swirling flow can provide a more uniform velocity distribution and a calmer filling condition according to previous studies of both ingot and continuous casting processes of steel. However, the existing swirling flow generation methods developed in last decades all have some limitations. LÄS MER