Results 201 to 210 of about 125,369 (239)
Advanced Science, EarlyView.This study introduces an innovative interpenetrating layered structure, comprising alternating aramid nanofiber (ANF) layers and MXene layers, fabricated through a directional freeze–thaw intercalation–gel‐film formation strategy. Unlike traditional homogeneous layered films, this unique layered structure features mutually embedded conductive and ...
Hongli Cheng +9 more
wiley +1 more source
Advanced Science, EarlyView.Thermal cyclotrimerization of nitriles converts interfacial discontinuity in MAF‐stu‐1/PIM‐1 MMMs into a continuity‐enhanced junction. Triazine–Zn2+ coordination between TR‐PIM chains and MAF‐stu‐1, together with hydrogen bonding and π–π stacking, lowers interfacial tension and builds selective CO2 pathways, enabling > 10 000 barrer CO2 permeability ...
Zhihong Lin +7 more
wiley +1 more source
Some of the next articles are maybe not open access.
Related searches:
Related searches:
RADIATION SHIELDING TECHNOLOGY
Health Physics, 2005An historical review of the development of shielding techniques for indirectly ionizing radiation is presented, along with a summary of techniques at various levels of sophistication for shielding design and analysis.
J Kenneth, Shultis, Richard E, Faw
openaire +3 more sources
A tongue-shielding radiation stent
The Journal of Prosthetic Dentistry, 1983This article describes a simple technique for fabricating stents to protect the lateral border of the tongue during therapeutic radiation therapy delivered to a unilateral region such as used in treating parotid or retromolar trigone lesions. The technique requires materials that are readily available and expertise that is possessed by all dentists ...
T J, Fleming, S C, Rambach
openaire +2 more sources
2017
Radiation shielding concrete is the composite made up of cement, water, and heavy weight aggregates. It can shield such radiations as alpha rays, beta rays, gamma rays, X-rays, and neutrons due to its high density and large content of crystal water. Compared with other shielding materials, radiation shielding concrete is cheaper, easier to mold into ...
Baoguo Han, Liqing Zhang, Jinping Ou
openaire +1 more source
Radiation shielding concrete is the composite made up of cement, water, and heavy weight aggregates. It can shield such radiations as alpha rays, beta rays, gamma rays, X-rays, and neutrons due to its high density and large content of crystal water. Compared with other shielding materials, radiation shielding concrete is cheaper, easier to mold into ...
Baoguo Han, Liqing Zhang, Jinping Ou
openaire +1 more source
Shielding for Beta-gamma Radiation
Health Physics, 1993The build-up factor, B, for lead was expressed as a polynominal cubic function of the relaxation length, mu x, and incorporated in a "general beta-gamma shielding equation." A computer program was written to determine shielding thickness for polyenergetic beta-gamma sources without resorting to the conventional "add-one-HVL" method.
openaire +2 more sources
Secondary radiations in spacecraft shieldings
Radiation Measurements, 1994Some problems are discussed which relate to the generation of secondary radiation under the effects of heavy charged cosmic ray particles in spacecraft shielding and in biological tissue. Methods for obtaining the total and differential inelastic interaction cross sections are recommended for use in the calculation of heavy charged particle transport ...
openaire +2 more sources
Selective Shielding Against Roentgen Radiation
Radiology, 1953Selective exposure of local areas to roentgen radiation is usually simple to accomplish by blocking off all but the exposed area with sheets of lead. If the volume exposed is relatively small, the radiation which is scattered into the shielded regions is apt to be negligible.
openaire +2 more sources
Radiation shielding for diagnostic radiology
Radiation Protection Dosimetry, 2015Abstract Scattered radiation makes up the majority of the stray radiation field around an X-ray unit. The scatter is linked to the amount of radiation incident on the patient. It can be estimated from quantities used to assess patient dose such as the kerma-area product, and factors have been established linking this to levels of ...
openaire +2 more sources
The Efficiency of Radiation Shields
Review of Scientific Instruments, 1948The effect of a number of thick radiation shields of infinite thermal conductivity and of a type realizable in practice is analyzed by matrix algebra, and a method for calculating the temperatures of the various shields is also given. For identical thin shields it is found that the ratio of the power required to maintain a radiating surface of ...
openaire +2 more sources