Results 141 to 150 of about 3,582,501 (299)

Sources, classification, and disposal of radioactive wastes: History and legal and regulatory requirements [PDF]

open access: yes, 1991
This report discusses the following topics: (1) early definitions of different types (classes) of radioactive waste developed prior to definitions in laws and regulations; (2) sources of different classes of radioactive waste; (3) current laws and ...
Kocher, David C.
core  

A rock brittleness index based on the postpeak energy release rate and damage surface characteristics for brittle hard rock

open access: yesDeep Underground Science and Engineering, EarlyView.
This study examines energy evolution in rock rupture via triaxial direct shear tests, exploring the impact of confining pressure and temperature on fracture surface randomness. A novel energy‐based brittleness index is proposed, validated experimentally, and compared with existing methods for reliability and accuracy.
Biao Wang   +5 more
wiley   +1 more source

A Bayesian Approach to Aerial Localization of Radioactive Sources [PDF]

open access: yes, 2016
Securing nuclear material has become an important area for the safety of the U.S. and other countries. Within nuclear security, there is a potential to use orphaned or stolen radioactive sources to cause harm.
Wilkerson, Robert Blake
core  

Thermal‐induced fracture evolution and acoustic signature of Beishan granite: Insights into tensile strength of barrier system for high‐level radioactive waste disposal

open access: yesDeep Underground Science and Engineering, EarlyView.
The tensile strength of granite, a proposed host for nuclear waste, degrades severely above 400°C. We link this to specific microcracking patterns captured by acoustic emission, establishing a scientific basis for assessing repository safety under thermal load.
Wei Zeng   +7 more
wiley   +1 more source

Reduction of Radioactive Waste Through the Reuse and Recycle Policy of the Sealed Radioactive Sources Management

open access: yes
In the past few years, the utilization of sealed source for medical, industrial and research purposes has shown an accelerating increase. This situation will lead to increases in the amount of sealed radioactive.
T. Marpaung
core  

Different from bone: Tooth formation and enameloid mineralization are not affected by reduced dietary phosphorus intake

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Vertebrates rely on phosphorus intake for skeletal mineralization. In humans, hypomineralized teeth associated with rickets, hypophosphatemia, hypophosphatasia, or idiopathic molar‐incisor‐hypomineralization pose significant problems.
S. Cotti   +8 more
wiley   +1 more source

ANSTO's radioactive waste management policy: preliminary environmental review.

open access: yes, 1996
For over forty years radioactive wastes have been generated by ANSTO (and its predecessor the AAEC) from the operation of nuclear facilities the production of radioisotopes for medical and industrial use and from various research activities.
Innes, RW   +12 more
core  

Hemodynamic loading regulates formation and patterning of atrial pectinate muscles in the chick embryo

open access: yesDevelopmental Dynamics, EarlyView.
Development and differentiation of the atrial myocardium. Hemodynamic loading triggers shear stress response, which is essential for pectinate muscle formation; mechanical stretching is important for the expression of chamber myocardium markers and proper maturation of the atrial contractile and conductive properties.
C. Neradilova   +7 more
wiley   +1 more source

Review of aluminum solubility behavior in the Hanford 200 South West Area tanks targeted for retrieval

open access: yesEnvironmental Progress &Sustainable Energy, EarlyView.
Abstract The behavior of aluminum‐bearing phases in tank wastes from the southwest quadrant of the Hanford Site's 200 West Area primarily determines solids accumulation, retrieval performance, and downstream processability. This review synthesizes historical tank characterization data, laboratory dissolution studies, and process‐relevant observations ...
Brett C. Simpson   +2 more
wiley   +1 more source

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