نتایج جستجو برای: mfi
تعداد نتایج: 1492 فیلتر نتایج به سال:
The impact of homogenization speed on Particle Size (PS) results was examined using samples from the M.longissimus thoracis et lumborum (LL) of 40 lambs. One gram duplicate samples from meat aged for 1 and 5days were homogenized at five different speeds; 11,000, 13,000, 16,000, 19,000 and 22,000rpm. In addition to this LL samples from 30 different lamb carcases also aged for 1 and 5days were us...
زئولیتها غربالهای مولکولی شناختهشدهای هستند که به طور گسترده در صنعت نفت برای جداسازی هیدروکربنها استفاده میشوند. لذا بررسی نفوذ و مهاجرت مولکولهای مهمان در زئولیتها حائز اهمیت است. در این پایاننامه از شبیهسازی دینامیک مولکولی برای محاسبهی ضریب خود نفوذی، تابع خود همبستگی زاویهای، انرژی فعالسازی، انرژی جذب، تصاویر لحظهای و توابع توزیع شعاعی مولکولهای مهمان در زئولیت تمام سیلیکای ...
Unique bayberry-like MFI zeolites are synthesized through a quasi-solid-state crystallization approach. This hierarchical zeolite structure has a relatively thick shell, densely grown nanocrystals with an ordered packed channel, high mechanical stability, high surface area and a low Si/Al ratio. Its catalytic efficiency for methanol-to-aromatics is significantly higher than that of conventional...
BACKGROUND Fatigue is a common symptom in post-polio syndrome (PPS) and can have a substantial impact on patients. There is a need for validated questionnaires to assess fatigue in PPS for use in clinical practice and research. The aim with this study was to assess the validity and reliability of the Swedish version of Multidimensional Fatigue Inventory (MFI-20) in patients with PPS using the R...
BACKGROUND Desensitization with IVIG and rituximab allows acceptable graft survival in sensitized kidney transplant recipients with preexisting donor-specific antibodies (DSAs) and a positive crossmatch. There is little published data reporting the durability of DSA removal in kidney transplant recipients treated with IVIG and rituximab. METHODS We conducted a 3-year prospective DSA monitorin...
BACKGROUND Ethylenediaminetetraacetic acid (EDTA) pretreatment has been shown to overcome complement interference in the single-antigen bead (SAB) assay. However, a quantitative evaluation of its impact on the assay for preemptive application to diverse clinical samples is still lacking. METHODS Serum samples from 95 renal transplant candidates were tested with and without EDTA-pretreatment i...
Ethane dehydroaromatization (EDA) reaction is one of the promising processes to meet growing demand aromatics in future. Zn ion exchanged MFI type aluminosilicate zeolite (Zn/[Al]-MFI) shows high activity on EDA reaction. and Brønsted acid derived from Al sites contribute reaction, but excess strong promote coke formation, leading rapid deactivation. Herein, we have developed a new synthesis me...
Nanosheets of MFI zeolite were successfully synthesized by hydrothermal method and were properly characterized by XRD, FE-SEM, EDX-dot mapping, TEM, FT-IR, N2 adsorption/desorption, NH3-TPD, ICP-AES and TGA techniques. The characterizations of MFI zeolite nanosheets suitably confirmed well synthesized MFI nanostructure, superior specific surface area (695.96m2.g-1) and great mesopores volume. C...
OBJECTIVES The objectives of this study were the following: to determine if fatigue is present in chronic low back pain (LBP) and chronic neck pain patients to a greater extent than in controls (nonpatients); to determine which variables are associated with the presence of fatigue; and to determine which of the above chronic pain patient (CPP) groups is more fatigued. To the authors' knowledge,...
Polycrystalline MFI zeolite membranes were prepared on α-alumina tubular support by hydrothermal treatments at 413 K. The synthesized zeolite membranes were characterized by XRD, SEM and single gas permeation. The influence of hydrothermal treatment steps and the calcination time on the zeolite layer formation were investigated. MFI zeolite membrane prepared by four subsequent hydrothermal ...
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