the determination of soil wetting front which caused by emitters is one of the important issues in designing trickle irrigation system. in this study, a mathematical model introduced in order to study the position of soil wetting front during irrigation by point emitters in homegenious soil in unsteady condition. the model solves governing differential equation of unsaturated flow in cylindrica...

The potential of alpha-particle emitters to treat cancer has been recognized since the early 1900s. Advances in the targeted delivery of radionuclides and radionuclide conjugation chemistry, and the increased availability of alpha-emitters appropriate for clinical use, have recently led to patient trials of radiopharmaceuticals labeled with alpha-particle emitters. Although alpha-emitters have ...

Radionuclides conjugated to molecules that bind specifically to cancer cells are of great interest as a means to increase the specificity of radiotherapy. Currently, the methods to disseminate these targeted radiotherapeutics have been either systemic delivery or by bolus injection into the tumor or tumor resection cavity. Herein we model a potentially more efficient method of delivery, namely ...

Despite the recent progress in the fabrication of field emitters based on graphene nanosheets, their morphological and electrical properties, which affect their degree of field enhancement as well as the electron tunnelling barrier height, should be controlled to allow for better field-emission properties. Here we report a method that allows the synthesis of graphene-based emitters with a high ...

This experiment investigates the susceptibility of an ECGmachine to emissions from unintentional emitters such as aGameBoyTM and iPod NanoTM, and intentional emitters such asa Cell Phone, Portable 2.4 GHz Phone, Portable 5.8 GHzPhone and Walkie-Talkie. Experiments were conducted both ina “lab” and hospital environments. The authors demonstratethat all of the above po...

ENRESA is the national company in charge of radioactive waste management in Spain. The company was set up in 1984, and one of its missions is the dismantling of nuclear facilities. ENRESA has carried out the dismantling of the Vandellós 1 nuclear power plant, several research installations and a pool type experimental reactor and is currently initiating the dismantling of the José Cabrera nucle...

Articles you may be interested in Fabrication and characterization of single carbon nanotube emitters as point electron sources Appl. Source brightness and useful beam current of carbon nanotubes and other very small emitters Carbon nanotubes synthesized by biased thermal chemical vapor deposition as an electron source in an x-ray tube Appl. On-chip vacuum microtriode using carbon nanotube fiel...

Articles you may be interested in Stable high temperature metamaterial emitters for thermophotovoltaic applications Appl. Selective emitters design and optimization for thermophotovoltaic applications

Variations of calcium45 taken up in vitro by the enamel and dentin of teeth have been reported recently. Dentin appears to adsorb more Ca45 than enamel, and carious dentin more than non-carious dentin. Underwood and Hodge'0 measured the Ca45 differences in solutions of powdered non-carious enamel and dentin. Minder and Gordonoff7 have published auto-radiographs with Ca45 of intact rat teeth, an...