Results 41 to 50 of about 109,300 (351)

Evaluation of automated pre-treatment and transit in-vivo dosimetry in radiotherapy using empirically determined parameters

Physics and Imaging in Radiation Oncology, 2020
Background and purpose: First reports on clinical use of commercially automated systems for Electronic Portal Imaging Device (EPID)-based dosimetry in radiotherapy showed the capability to detect important changes in patient setup, anatomy and external ...
Evy Bossuyt, Reinhilde Weytjens, Daan Nevens, Sarah De Vos, Dirk Verellen   +4 more
doaj  

Comparing treatment uncertainty for ultra- vs. standard-hypofractionated breast radiation therapy based on in-vivo dosimetry

Physics and Imaging in Radiation Oncology, 2022
Background and purpose: Postoperative ultrahypofractionated radiation therapy (UHFRT) in 5 fractions (fx) for breast cancer patients is as effective and safe as conventionally hypofractionated RT (HFRT) in 15 fx, liberating time for higher-level daily ...
Yawo A.C. Fiagan, Evy Bossuyt, Melanie Machiels, Daan Nevens, Charlotte Billiet, Philip Poortmans, Thierry Gevaert, Dirk Verellen   +7 more
doaj  

Iridium oxide as actuator material for the ISFET-based sensor-actuator system [PDF]

, 1991
Acid or base concentrations can be determined by performing an acid-base titration with Coulometrically generated OH- or H+ ions at a noble-metal actuator electrode in close proximity to the pH-sensitive gate of an ISFET.
Bergveld, Piet, Bomer, Johan G., Bos, M., Bos, M., Olthuis, Wouter, van der Linden, W.E.   +5 more
core   +2 more sources

High-pressure formation and stabilization of iridium hydrides [PDF]

, 2013
A class of iridium hydrides, IrH_x (x=0.5, 1-4, 6), is calculated at ab-initio level using the DFT. A number of hydrides are predicted to stabilize in the excess hydrogen environment and upon compression. The threshold pressure for thermodynamical stabilization is calculated to ~5 and ~14 GPa at which, respectively, a trihydride (P6_3mc) and a ...
arxiv   +1 more source

Microanalysis of single-layer hexagonal boron nitride islands on Ir(111) [PDF]

Applied Surface Science 420 (2017), pp. 504-510, 2017
Large hexagonal boron nitride (hBN) single-layer islands of high crystalline quality were grown on Ir(111) via chemical vapor deposition (CVD) and have been studied with low-energy electron microscopy (LEEM). Two types of hBN islands have been observed that structurally differ in their shape and orientation with respect to iridium, where the former ...
arxiv   +1 more source

Smartphone-Based pH Sensor for Home Monitoring of Pulmonary Exacerbations in Cystic Fibrosis. [PDF]

, 2017
Currently, Cystic Fibrosis (CF) patients lack the ability to track their lung health at home, relying instead on doctor checkups leading to delayed treatment and lung damage.
Conrad, Douglas, Hall, Drew A, Phelps, Tom, Sun, Alexander, Venkatesh, AG, Yao, Chengyang   +5 more
core   +2 more sources

Towards Sub-micrometer High Aspect Ratio X-ray Gratings by Atomic Layer Deposition of Iridium [PDF]

Microelectronic Engineering 192 (2018) Pages 19-24, 2018
X-ray grating interferometry is an excellent technique for X-ray phase contrast imaging and X-ray wavefront sensing with applications in materials science, biology and medical diagnosis. Among other requirements, the method depends on the availability of highly X-ray absorbing metallic gratings.
arxiv   +1 more source

Fabrication and characterization of dual function nanoscale pH-scanning ion conductance microscopy (SICM) probes for high resolution pH mapping [PDF]

, 2013
The easy fabrication and use of nanoscale dual function pH-scanning ion conductance microscopy (SICM) probes is reported. These probes incorporate an iridium oxide coated carbon electrode for pH measurement and an SICM barrel for distance control ...
Alex W. Colburn, Bard A. J., Bard A. J., Bezbaruah A. N., Binoy Paulose Nadappuram, Bitziou E., Compton R. G., Comstock D. J., Cravotta C. A., Dobson P. S., Edwards M. A., Elsen H. A., Hansma P. K., Hess S. T., Hitchman M. L., Horrocks B. R., Katsube T., Kim I. W., Kim J., Kim McKelvey, Korchev Y. E., Kreider K. G., Kueng A., Lazenby R. A., Lodi G., Marzouk S. A. M., Miesenböck G., Natter H., Novak P., Orton R., Patrick R. Unwin, Plummer L. N., Plummer L. N., Rehab Al Botros, Rickard D., Rudd N. C., Shen S. S., Stumm W., Takahashi Y., Takahashi Y., Tanabe H., Wang M., Wei C., Wipf D. O., Yamamoto K., Yamanaka K., Yoon Y. H., Yoon Y. H., Zhang J. M., Zhang X., Zhao M. C.   +50 more
core   +2 more sources

Processing of Iridium and Iridium Alloys

Platinum Metals Review, 2008
Iridium and its alloys have been considered to be difficult to fabricate due to their high melting temperatures, limited ductility, sensitivity to impurity content and particular chemical properties. The variety of processing methods used for iridium and its alloys are reviewed, including purification, melting, forming, joining and powder metallurgy ...
openaire   +2 more sources

Substrate patterning using regular macroporous block copolymer monoliths as sacrificial templates and as capillary microstamps [PDF]

Small 2018, 14, 1801452, 2018
Polystyrene-block-poly(2-vinylpyridine) (PS-b-P2VP) monoliths containing regular arrays of macropores (diameter ~1.1 microns, depth ~700 nm) at their surfaces are used to pattern substrates by patterning modes going beyond the functionality of classical solid elastomer stamps.
arxiv   +1 more source