Results 71 to 80 of about 22,356,954 (294)

Assessment of quaternary aquifer pollution sensitivity using modified DRASTIC models around stressed Canal in Eastern Nile delta, Egypt

open access: yesScientific Reports
Groundwater is generally less prone to contamination than surface water; however, pollutant infiltration can occur due to aquifer characteristics and anthropogenic land use (LU) changes.
Zenhom E. Salem   +4 more
doaj   +1 more source

THE INFLUENCE OF CADMIUM ON THE GROWTH AND ELEMENTAL COMPOSITION OF IN VITRO CULTURES OF FRUIT CROPS [PŮSOBENÍ KADMIA NA RŮST A PRVKOVÉ SLOŽENÍ IN VITRO KULTUR OVOCNÝCH DRUHŮ] [PDF]

open access: yesVědecké Práce Ovocnářské
The aim of this work was to compare the sensitivity of fruit crop explant cultures to cadmium in the growth medium and to determine whether its presence affects the elemental composition of plant matter.
Alexandra Slámová   +2 more
doaj   +1 more source

Overhauser elements in boundary element analysis

open access: yesMathematical and Computer Modelling, 1991
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Camp, C. V., Gipson, G. S.
openaire   +1 more source

Simulation‐Based Analysis of Insert Pull‐Out in Nickel‐Polyurethane Hybrid Foams Using CT‐Derived Geometries

open access: yesAdvanced Engineering Materials, EarlyView.
CT‐based finite element simulations combined with in situ X‐ray computed tomography are used to analyze insert pull‐out in nickel‐coated polymer foams. Despite variations in material parameters, deformation consistently concentrates within a narrow annular region around the insert.
Yannik Bautz   +4 more
wiley   +1 more source

Elemental analysis of PU membrane.

open access: yes, 2018
Elemental analysis of PU membrane.
Cui Yan Chao (5904746)   +2 more
core   +1 more source

Semi-quantitative elemental imaging of corrosion products from bioabsorbable Mg vascular implants in vivo

open access: yesBioactive Materials
While metal materials historically have served as permanent implants and were designed to avoid degradation, next generation bioabsorbable metals for medical devices such as vascular stents are under development, which would elute metal ions and ...
Weilue He   +8 more
doaj   +1 more source

Gallium Microalloying in Bi–Sn Solders: Interfacial Phase Formation, Wettability, and Long‐Term Shear Reliability Under Isothermal Aging

open access: yesAdvanced Engineering Materials, EarlyView.
Gallium microalloying redirects interfacial reactions in low‐temperature Bi–Sn solders from Cu–Sn toward Cu–Ga intermetallic formation. The resulting Cu–Ga layer suppresses intermetallic growth during thermal aging, alters fracture pathways, and improves interfacial stability.
Iva Králová   +6 more
wiley   +1 more source

Elemental Analysis - Summary

open access: yes
Polymers were analyzed for CHN, and S using an elemental analyzer, F using an ion-selective electrode, and 68-elemental screen using ICP-MS. Attached are excel file of data processing summaries of each analysis.
Material Characterization (16866117)
core   +1 more source

Proton-Induced X-ray Emission Spectroscopy in Elemental Trace Analysis [Elektronisk resurs]

open access: yes, 1972
Using protons in the MeV range as excitation source and a high resolution Si(Li) detector,X-ray emission spectroscopy is shown to be capable of analyzing many elements with Z > 15 simultaneously at the 10-12 g level.
Akselsson, Roland,   +3 more
core   +1 more source

Oxygen-induced multimodal ultramicroporous structure in 10-nm-thick carbon membranes for enhanced hydrogen separation

open access: yesNature Communications
Carbon membranes yielding high selectivity as well as high permeance are attractive to advance the membrane-based gas separation. Herein, we report ultrathin carbon membranes (UCMs) which deliver enhanced gas separation performance through oxygen ...
Yueqing Shen   +11 more
doaj   +1 more source

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