Superior Water Sheeting Effect on Photocatalytic Titania Nanowire Coated Glass.

Simple, rapid, and inexpensive fabrication of self-cleaning glass surfaces based on wet chemical deposition of HTiO (trititanate) and subsequent transformation of it into TiO (anatase) nanowires on pristine glass surfaces is reported. Despite the low, 55%, surface coverage, the nanowire roughened glass surface showed self-cleaning properties comparable to much thicker, over 100-nm-thick, TiO nanoparticle coated glasses. The superwettable surface showed 12° contact angle.

Neutron activation and prompt gamma intensity in Ar/CO-filled neutron detectors at the European Spallation Source.

Monte Carlo simulations using MCNP6.1 were performed to study the effect of neutron activation in Ar/CO neutron detector counting gas. A general MCNP model was built and validated with simple analytical calculations.

Unrevealed part of myosin's powerstroke accounts for high efficiency of muscle contraction.

Background: Myosin II, the motor protein driving muscle contraction, uses energy of ATP hydrolysis to produce movement along actin. The key step of energy transduction is the powerstroke, involving rotation of myosin's lever while myosin is attached to actin. Macroscopic measurements indicated high thermodynamic efficiency for energy conversion.

Novel ion exchange chromatography method for nca arsenic separation.

A high-performance liquid chromatography (HPLC) device equipped with an anion exchange column was used to isolate nca As from reactor irradiated GeO targets. The oxidation states of the isotope As during the process was verified by thin layer chromatography. The radionuclidic purity of the separated fractions was checked by gamma measurements and it was found to be 99.

Medical physics in Europe following recommendations of the International Atomic Energy Agency.

Background: Medical physics is a health profession where principles of applied physics are mostly directed towards the application of ionizing radiation in medicine. The key role of the medical physics expert in safe and effective use of ionizing radiation in medicine was widely recognized in recent European reference documents like the European Union Council Directive 2013/59/EURATOM (2014), and European Commission Radiation Protection No. 174, European Guidelines on Medical Physics Expert (2014).

Emerging fractal patterns in a real 3D cerebral aneurysm.

The behaviour of biological fluid flows is often investigated in medical practice to draw conclusions on the physiological or pathological conditions of the considered organs. One area where such investigations are proven to be useful is the flow-related formation and growth of different pathologic malformations of the cerebro-vascular system. In this work, a detailed study is presented on the effect of a cerebral aneurysm on blood transport inside a human brain artery segment.

Edge electron density profiles and fluctuations measured by two-dimensional beam emission spectroscopy in the KSTAR.

Beam emission spectroscopy (BES) system in Korea Superconducting Tokamak Advanced Research (KSTAR) has recently been upgraded. The background intensity was reduced from 30% to 2% by suppressing the stray lights. This allows acquisition of the relative electron density profiles on the plasma edge without background subtraction from the beam power modulation signals.

Accuracy and precision of (238)Pu determination at fg level by alpha spectrometry using (239)Pu and (240)Pu amount analyzed by ICP-MS.

The accuracy and precision of the determination of (238)Pu amount at the fg (mBq) level by a combination of alpha spectrometry and inductively coupled plasma mass spectrometry (ICP-MS) were studied using a standard reference material (CRM 137-Plutonium [corrected] Isotopic Standard, National Bureau of Standards, Washington, D.C., USA).

Determination of long-lived Nb isotopes in nuclear power plant wastes.

(94)Nb and (93m)Nb are long-lived radionuclides, produced by thermal and fast neutrons from (93)Nb that is a major component of the Zr alloys used in nuclear reactors. A radiochemical method for the determination of these nuclides has been developed. The separation is based on the insolubility of Nb oxides and the retention of the fluoric complexes on anion exchange resin.

Human hair as a potential biomonitor for assessing persistent organic pollutants.

To explore human biomonitor of persistent organic pollutants (POP) for public health risk assessment, extractable organohalogens (EOX), extractable persistent organohalogens (EPOX) and some selected organochlorine pesticides (OCP) and polychlorinated biphenyls (PCB) in children hair from urban and rural regions of Beijing, China, were measured by instrumental neutron activation analysis (INAA) and gas chromatography-electron capture detector (GC-ECD). The results indicated that about 96% of the total halogens existed as water-soluble polar compounds; about 25 to 50% of EOX were sulfuric acid-resistant EPOX; organochlorines were the major fraction of the organohalogens; and 88 to 99.6% of extractable persistent organochlorines (EPOCl) cannot be attributed to the selected OCP and PCB.

Radionuclide migration modeling through the soil-plant system as adapted for Hungarian environment.

The migration of radionuclides released as fallout through the food-chain to humans was modelled using the MODELMAKER software. In the established dynamic environmental transfer model ETM-2002 with compartmental structure, the principal pathways of vegetable contamination were studied specifically for the Hungarian environment. These pathways were: direct deposition on plant surface, root uptake and deposition after resuspension from the soil surface.

Stochastic dose/risk assessment uncertainty and the concept of potential exposures.

Assessments of future potential doses and risks (e.g. in connection with radioactive waste disposal) can be associated with substantial uncertainties.