Results 121 to 130 of about 7,317,302 (267)

Itararé Group Sandstone as a Sustainable Alternative Material for Photon Radiation Shielding

open access: yesApplied Sciences
The materials typically used for radiation shielding include lead, concrete, and polymers. However, some of these materials can be toxic or very expensive to produce.
Gabrielli W. Pietralla   +2 more
doaj   +1 more source

The structure of a three-dimensional turbulent boundary layer [PDF]

open access: yes, 1993
The three-dimensional turbulent boundary layer is shown to have a self-consistent two-layer asymptotic structure in the limit of large Reynolds number.
Degani, AT, Smith, FT, Walker, JDA
core  

Antimicrobial bilayer starch film containing zein electrospun fibers encapsulating thyme essential oil for cherry tomato packaging

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract Background This study evaluated the antimicrobial activity of thyme essential oil (TEO) encapsulated in electrospun zein fibers for use in bilayer films as active packaging for cherry tomatoes. The antimicrobial activity of TEO and bilayer films with 20%, 40%, and 60% TEO was assessed with agar diffusion and microatmosphere assays.
Jéssica Silveira Vitoria   +7 more
wiley   +1 more source

Novel approach to enhance the efficiency of mortar against radiations by co-incorporation of lead and boron compounds with calcium chloride

open access: yesScientific Reports
Fabrication of heavy density mortar using aggregates reinforced with available solid inorganic chemical additives is of a great importance as a protective layer to mitigate radiations in nuclear facilities.
Hussein Al-kroom   +5 more
doaj   +1 more source

Effect of glass composition on physical, mechanical and radiation shielding performance of Barium Bismuth Boro-tellurite glasses

open access: yesResults in Physics
This study explores the role of compositional variation on the structural, mechanical, and radiation attenuation characteristics of Bismuth Barium Boro-tellurite (BBBT) glasses.
Shreeshmal Bhavya   +7 more
doaj   +1 more source

Short-scale effects on model boundary-layer spots [PDF]

open access: yes, 1995
This theoretical work, on the spot in an otherwise laminar boundary layer, concerns the initial-value problem for three-dimensional inviscid disturbances covering a wide range of scales. The study asks whether or not comparatively short scales can have a
Bowles, RGA, Smith, FT
core  

Calibration‐Free Single‐Frame Super‐Resolution Fluorescence Microscopy

open access: yesLaser &Photonics Reviews, EarlyView.
A deep learning framework reconstructs super‐resolved fluorescence images from a single dense camera frame, without any prior calibration or knowledge of the microscope. Trained solely on synthetic data, it generalizes across imaging setups and conditions.
Anežka Dostálová   +3 more
wiley   +1 more source

From Planar to 3D Nanophotonic Lenses: Advancing Design, Fabrication, and Applications

open access: yesLaser &Photonics Reviews, EarlyView.
Three‐dimensional nanophotonic lenses are enabled by an integrated workflow that links design parameterization, full‐wave electromagnetic simulation, computational optimization, and freeform fabrication. This Review summarizes how these tools expand optical design freedom beyond a single patterned plane by enriching the local meta‐atom response and ...
Wei Zhu   +2 more
wiley   +1 more source

Radiation Shielding Performance of B4C‐Reinforced Ultra‐High Molecular Weight Polyethylene Composites Against Low‐Energy X‐Rays: Experimental and Computational Analysis

open access: yesPolymer Composites, EarlyView.
Radiation shielding behavior of B4C‐reinforced UHMWPE composites. ABSTRACT The present study investigates the radiation shielding performance of ultra‐high molecular weight polyethylene (UHMWPE) composites reinforced with varying boron carbide (B4C) contents against low‐energy X‐rays through combined experimental and computational approaches.
Elif Altındaş   +4 more
wiley   +1 more source

Instabilities in a high-Reynolds-number boundary layer on a film-coated surface [PDF]

open access: yes, 1997
A high-Reynolds-number asymptotic theory is developed for linear instability waves in a two-dimensional incompressible boundary layer on a flat surface coated with a thin film of a different fluid.
Timoshin, SN
core  

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