Results 101 to 110 of about 116,760 (305)
Pour Point Density Estimations for Packed Columns with Structured Packings
Chemical Engineering Transactions, 2018 In the chemical processing industry (CPI), structured packings are widely used for distillation and absorption columns. To achieve the desired mass transfer performances of structured packings, it is crucial to distribute the liquid uniformly across the top of the packed bed.
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A New Packing Density Bound in 3-Space [PDF]
Discrete & Computational Geometry, 2005 The author shows that every compact convex set \(K\) which is centrally symmetric and has a nonempty interior gives rise to a lattice packing of the Euclidean three dimensional space with density at least \(0.53835\dots\). The packing consists of layers in which plane packings of cross-sections of \(K\) are defined and then uses the corresponding bound
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Molecular Oncology, EarlyView.Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson +9 more
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Elucidation of local and global structural properties of packed bed configurations [PDF]
, 1990 Some of the most common unit operations being used in the chemical industry are based upon packed bed configurations. Multi-tubular catalytic reactors are a prominent example of such systems which are believed by many experts to be the heart of the ...
Roshani, Shahram
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The Set of Packing and Covering Densities of Convex Disks [PDF]
Discrete & Computational Geometry, 2013 12 pages, 9 ...
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Molecular Oncology, EarlyView.Pre‐analytical handling critically determines liquid biopsy performance. This study defines practical best‐practice conditions for cell‐free DNA (cfDNA) and extracellular vesicle–derived DNA (evDNA), showing how processing time, storage conditions, tube type, and plasma input volume affect DNA integrity and mutation detection.
Jonas Dohmen +11 more
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Packing density improvement through addition of limestone fines, superfine cement and condensed silica fume [PDF]
, 2016 Adoption of a low water/powder (W/P) ratio is the key to improve the strength and durability of concrete, which relies on a high packing density because fresh concrete requires excess water to offer flowability.
Chen, JJ, Ng, PL, Li, LG, Kwan, AKH
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On the translative packing densities of tetrahedra and cuboctahedra
Advances in Mathematics, 2014 In this paper, upper bounds for the densities of the densest translative tetrahedron packings and the densest translative cubooctahedron packings are obtained.
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Molecular Oncology, EarlyView.Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau +36 more
wiley +1 more source
Prediction of amyloidogenic and disordered regions in protein chains.
PLoS Computational Biology, 2006 The determination of factors that influence protein conformational changes is very important for the identification of potentially amyloidogenic and disordered regions in polypeptide chains. In our work we introduce a new parameter, mean packing density,
Oxana V Galzitskaya +2 more
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