Results 211 to 220 of about 50,565 (265)

An approximate-copula distribution for statistical modeling. [PDF]

PLoS Comput Biol
Ji SS, Chu BB, Zhou H, Lange K.
europepmc   +1 more source

Geological and geotechnical challenges on the Great Dyke of Zimbabwe and their impact on hardrock pillar design

Deep Underground Science and Engineering, EarlyView.
The Great Dyke of Zimbabwe is notable for its rich platinum group metal deposits but poses significant geological and geotechnical challenges due to its complex rock types and structural features. Traditional pillar design methods are insufficient for addressing these complexities; the study suggests incorporating advanced techniques such as machine ...
Tawanda Zvarivadza, Hendrik Grobler, Moshood Onifade, Manoj Khandelwal   +3 more
wiley   +1 more source

COVID-19 pandemic in minor psychiatric disorders among mobile emergency service workers: cohort. [PDF]

Rev Bras Enferm
Guedes NDSI, Finckler PVPR, Camponogara S, Nascimento KCD, Tavares JP, Pai DD.   +5 more
europepmc   +1 more source

Instability mechanism and failure characteristics of underground cavern in block system under the action of seismic waves

Deep Underground Science and Engineering, EarlyView.
Seismic waves with tensile stress, high amplitude, and low frequency are most likely to trigger block instability and sliding. Blocks with a single sliding surface are more prone to movement than those with multiple constraints, and roof‐positioned blocks are especially vulnerable to slide.
Xiao Wang, Jinxiao Liu, Gaoshuo Zhang, Wenxin Li, Changdi He   +4 more
wiley   +1 more source

Seasonal influenza vaccine and frequency of adverse events in health workers receiving two doses of AstraZeneca vaccine: a retrospective cohort study. [PDF]

Virus Res
Sedaghat M, Najafi F, Khosravi Shademani F, Rezaeian S.   +3 more
europepmc   +1 more source

Advancing mine pillar design: Evaluating traditional methods and integrating AI for enhanced stability of pillars in the Great Dyke, Zimbabwe

Deep Underground Science and Engineering, EarlyView.
B1 is bord width 1, B2 is bord width 2, L is the pillar length, W is the pillar width, red color and letter A represent the pillars, and white color and number 1 represent excavated areas. Pstress is the average pillar stress; σv is the vertical component of the virgin stress, MPa; and e is the areal extraction ratio. e = B o B o + B P ${\rm{e}}=\frac{{
Tawanda Zvarivadza, Hendrik Grobler, Peter Apata Olubambi, Moshood Onifade, Manoj Khandelwal   +4 more
wiley   +1 more source

The Association Between Soil Sampling and Bait Traps in Wireworm Monitoring: A Methodological and Statistical Approach. [PDF]

Insects
Furlan L, Bourlot G, Turchi A, Snichelotto V, Cappello Fusaro M, Bona S.   +5 more
europepmc   +1 more source

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

Deep Underground Science and Engineering, EarlyView.
Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu, Wei Qiao, Xianggang Cheng, Xiangsheng Meng, Peichao Feng   +4 more
wiley   +1 more source

Kinetic Jeans instability in FOG framework. [PDF]

Sci Rep
Das M, Atteya A, Karmakar PK.
europepmc   +1 more source

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A construction of a 𝜆-Poisson generic sequence

Mathematics of Computation, 2023
Years ago Zeev Rudnick defined the λ \lambda
Verónica Becher, Gabriel Sac Himelfarb
openaire   +1 more source