All < 10 μm particles were centrifuged for 65 min at 9500 RPM in a Beckman Coulter Avanti J-26 XP centrifuge, and the particle samples were dried in a freeze–drier. The two stone materials were also prepared in pyrogen-free water in the same manner as the road tunnel PM, and ...
where n is the viscosity of soil suspension at experimental temperature and R (cm) is the distance between the precipitation and the centrifugal axis. S (cm) is the distance between the suspension surface and the centrifugal axis during centrifugation, N (r min−1) is the centrifuge speed,...
Leukocyte concentration of the lavage was determined using a counting chamber, and one cytoslide with two cytospots was prepared with a cytocentrifuge (Shandon Co., Frankfurt, Germany) for the differential cell count (macrophages, neutrophils, eosinophils, and lymphocytes; see Table 6). After ...
Example: Stuxnet (reportedlyruined 1/5th of Iran’s nuclear centrifuges, infected 200,000 industrial computers, and caused 1,000 machines to physically degrade) A rootkit is a set of malicious tools that give unauthorized access to a software or whole operating system. It is designed to remain...
Magnetic Particle Testing Tmteck Glass Centrifuge Tubes 1pc $25.00 - $27.50 Min. order: 1 set 4 step calibration block 0.25-0.5-0.75-1 Inch 1018 steel $41.00 - $60.00 Min. order: 1 piece TMTeck Made TM210PLUS Ultrasonic thickness gauge $130.00 - $143.00 Min. order: 1 piece TMAC-10...
an acceptably high yield percentage was obtained for both AgNPs-MC and AgNPs-HPMC, followed by AgNPs-EC. The inconsistencies between the measured Ag inputs and the theoretical inputs can be attributed to the adsorption of Ag+or AgNPs by the centrifuge tubes or pipettes, volume loss, or transp...
202 continuous disc stack centrifuge, the process performance was able to scale up to about 1000-folds. All the GHA has been recovered in PEG-rich phase after two stages of extraction process in this modified centrifuge which function as a purifier for continuous processing (Rosa et al.2010)....
First, 50 mg adsorbent was added into a centrifuge tube with 0.001 mol/L NaNO3 solutions, and the volume of final suspension was 50 mL after adjusting pH with 0.1 mol/L HNO3 or NaOH solution. The suspensions were shaken using a rotary shaker at 150 r/min for 24 h, and the pH was ...
Next, each of the 5 carrier materials was sterilized in a 50 mL centrifuge tube with 2 g of the material, and then mixed with 10 mLFrankiaF1 bacterial suspension (1 × 109CFU/mL), put in a sterile bottle, dried in oven at low temperature (30 °C), and stored at 4 °C and...
and later used for digitoxin and digoxin extraction. Cardenolides were extracted following the method described by Wiegrebe and Wichtl30. Approximately 50 mg dry leaf powder was transferred to 2-mL centrifuge tube and 1 mL of 70% methanol was added. The mixture was kept in an ultrasonic...