Antoon Loomans - Parasitoids as Biological Control Agents of

A.JM Loomans – Parasitoids as Biological Control Agents of Thrips Pests - 2003 45 Chapter 2 Exploration for hymenopterous parasitoids of thrips Antoon J.M Loomans Laboratory of Entomology, Wageningen University, P.O Box 8031, 6700 EH Wageningen, The Netherlands Abstract As part of a project to evaluate parasitoid species as biological control

(PDF) Effectiveness of nanoscale zero-valent - Academia.edu

Nanoscale zero-valent iron (nZVI) has received considerable attention as a potential in situ remediation technology for treating chlorinated solvent source zones. Experimental and mathematical modeling studies were conducted to investigate the

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Extreme enrichment in atmospheric 15N15N

Contamination of outside agents was prevented by fitting a sterile cotton plug to the flask opening and covering this with sterile tin foil. Laboratory equilibration of the medium served to ensure that atmospheric N 2 was the only source of nitrogen in the medium. The culture was then transferred to a sterile “Emerson” flask with a sterile

Thermo problem set no. 1 - SlideShare

Dec 17, 2017 · The piston has a mass of 5 kg and a diameter of 12 cm. Determine (a) the atmospheric pressure outside and (b) the external force exerted on the piston to maintain a constant pressure. [Manual Solution] Answers: (a) 90 kPa (b) 1.178 kN downward A cooking pan with an inner diameter of 20 cm is filled with water and covered with a lid of mass 5 kg.

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A composite hollow fiber membrane-based - ScienceDirect

Jun 01, 1999 · From thermodynamic estimation it was found that a 13 μl of sample in a 22.5 ml headspace vial was needed to achieve full evaporation. The optimal parameters of the headspace sampler were as follows: oven temperature 100°C, sample equilibration time 7 min, pressurizing time 0.15 min, sampling time 1 min.

A five-year performance review of field-scale, slow-release

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20 mm Headspace Vials, Septum, and Caps

20mm Headspace Crimp Vial: Diameter (Metric) Opening: 20 mm: Diameter (Metric) Inner: 22.5 mm: Color: Amber: Diameter (Metric) Outer: 22.5 mm: Material: Glass: Volume (Metric) 21 mL: Base Style: Round Bottom: Volume (Metric) Total: 21 mL: Vial Type: 22 mm Headspace Crimp Vial: Closure Type: Crimp: Height (Metric) 75 mm: Quantity: 125: Marking Spot: No: Volume (Metric) Usable: 20 mL: Unit Size: Each

Autosampler Vials,Headspace Vials,Chromatography Vials

The optional capacity is 10ml 20ml, the specifications are: 22.5*46mm, 22.5*75mm, and two colorless and brown headspace vials are provided. ND20 crimp headspace gc vial Torticollis headspace sample vial, 10mL or 20mL volume, flat-bottomed or round-bottomed 20mm crimp top vial cap to ensure consistent safety sealing.