«average fragment size»
۱۵۴۱ نتیجهFragment Size Analysis of Free Fetal Dna in Maternal Plasma Using Y-str Loci and Sry Gene Amplification
Free fetal DNA (ffDNA) in maternal plasma has now become a valuable source for noninvasive prenatal diagnosis. Being able to accurately identify the size of ffDNA in maternal plasma is essential for a noninvasive prenatal diagnosis. Furthermore, it is important to investigate the
Towards standardisation of cell-free DNA measurement in plasma: controls for extraction efficiency, fragment size bias and quantification
Circulating cell-free DNA (cfDNA) is becoming an important clinical analyte for prenatal testing, cancer diagnosis and cancer monitoring. The extraction stage is critical in ensuring clinical sensitivity of analytical methods measuring minority nucleic acid fractions, such as foe
Blast Design for Improved Productivity using a Modified Available Energy Method
In this work, a new drilling and blasting design methodology is introduced and applied at a case study mine to improve productivity. For the case study copper mine, a blast diameter of 203 mm is proposed to be used in the ore zone to meet the new required production rate of 90mtp
Exploring the Physics behind Dynamic Fragmentation through Parallel Simulations
The physical mechanisms underlying the dynamic fragmentation of heterogeneous brittle materials are explored through numerical simulations. The use of computational facilities, rather than experimental or fundamental sciences, ensures the accurate tracking of rapidly evolving fie
On interdependence of instabilities and average drop sizes in bag breakup
A drop exposed to cross flow of air experiences sudden accelerations, which deform it rapidly, ultimately proceeding disintegrate into smaller fragments. In this work, we examine the breakup a as bag film with bounding rim, resulting from acceleration-induced Rayleigh–Taylor inst
Quantification of marine snow fragmentation by swimming euphausiids
Sinking of marine snow is a major mechanism of particulate carbon transport from surface waters to the seafloor. Any process altering the abundance or size of marine snow influences carbon flux and food availability to pelagic and benthic organisms. We explored whether zooplankto
“block Size” in a Complex Impact Crater Inferred from the Upheaval Dome
Introduction: The gravity-driven collapse of large impact craters implies a temporarily strong reduction in strength properties of target rocks. The currently best explanation for the strength degradation provides the model of acoustic fluidization [1] or block oscillation [2] wh
Optimisation of Fragmentation and Comminution at Boliden Mineral, Aitik Operation
The objective of this thesis is to optimise the fragmentation at Boliden Minerals open pit mine Aitik. Blasting is one of the main operations in mining, and its performance has a major impact on the overall economy of the mine. The fragmentation process affects not only the local
Effects of Fragmentation and Invasion on Native Ant Communities in Coastal Southern California
We investigated the roles of habitat fragmentation and the invasion of an exotic species on the structure of ground-foraging ant communities in 40 scrub habitat fragments in coastal southern California. In particular, we asked: how do fragment age, fragment size, amount of urban
Recovery potential of understory bird communities in Amazonian rainforest fragments
Understory bird communities have been studied in a series of Amazonian rainforest fragments near Manaus, Brazil for about 20 years. Previous analysis of standardized mist-net samples revealed considerable temporal dynamism in capture rates, with communities in fragments respondin