1387-1811/$ see front matter 2012 Elsevier Inc. A doi:10.1016/j.micromeso.2012.01.010 ⇑ Corresponding author. Tel.: +86 25 83172266; fax E-mail address: [email protected] (W. Jin). Metal–organic framework (MOF) membranes have attracted great attention for their potential applications in gas and liquid separations. Recently, we have developed a novel reactive seeding (RS) method for the synthesi...

As the literature on afferent loop obstruction (ALO) after pancreaticoduodenectomy (PD) is very limited, standardized rules for its management do not exist. Herein, we report the case of a 65-year-old male patient with chronic ALO who had undergone PD with single Roux-en-Y limb reconstruction and adjuvant chemoradiation therapy for pancreatic head adenocarcinoma 2 years earlier. The patient was...

(1)H, (27)Al, (29)Si and (39)K solid-state NMR are reported from a Hungarian illite 2:1 clay for samples heated up 1600 degrees C. This single-phase sample has a small amount of aluminium substitution in the silica layer and very low iron-content ( approximately 0.4wt%). Thermal analysis shows several events that can be related to features in the NMR spectra, and hence changes in the atomic sca...

Active Al, Fe and Si (i.e., oxalate extractable fraction: Alo, Feo, Sio) strongly affect soil physical, chemical biological properties. This study examined the pedogenic factors affecting Feo Sio contents across a weathering sequence in Cameroon volcanic line. We investigated B horizon (∼50-cm depth) from 26 soils formed basaltic materials at different elevations (110–2570 m) incorporating wide...

صفحه‌­ی مینیاتوری LEU پرتودهی شده در رآکتور تحقیقاتی تهران که برای تولید رادیوایزوتوپ مولیبدن-99 استفاده می‌شود، منبع پرتوزایی متشکل از رادیوایزوتوپ‌های مختلف است. محاسبه و تخمین آهنگ دز تابش‌های گامای گسیلی این منبع، به منظور مقایسه با مقادیر مجاز توصیه حمل‌ونقل مواد پرتوزا حفاظت پرتویی کارکنان حین انجام تست‌های آزمایشگاهی داغ، پیش هر اقدام عملی، امری ضروری مقاله، اعتبار یک روش پیشنهادی جهت هد...

AlO is relatively abundant around oxygen-rich Asymptotic Giant Branch (AGB) stars, where it can react with major gas-phase species such as H2 and H2O to form AlOH. These Al-containing are the likely precursors of refractory alumina nanoparticles, which may provide nuclei for dust formation. In present study, kinetics these reactions were measured from 295 780 K using pulsed laser photolysis Al(...

<span lang="EN-US">The synthesis of antenna arrays with low sidelobe levels is needed to enhance the communication systems’ efficiency. In this paper, new arbitrary geometries that improve ability minimize level, are proposed. We employ well-known superformula equation in field by implementing general array factor equation. Three metaheuristic optimization algorithms used synthesize and t...

Life cycle assessment (LCA) was performed in dairy buffalo farms representative of Southern Italian farming systems, similar due to several characteristics, with the exception wheat production. This work evaluated impacts derived from this management choice, comparing crop (WWC) or not (NWC). In agreement literature, economic allocation chosen as a useful strategy attribute equivalents by-produ...