Results 21 to 30 of about 509,340 (239)

Envelope surfaces

open access: yesProceedings of the twenty-second annual symposium on Computational geometry, 2006
We construct a class of envelope surfaces in Rd, more precisely envelopes of balls. An envelope surface is a closed C1 (tangent continuous) manifold wrapping tightly around the union of a set of balls. Such a manifold is useful in modeling since the union of a finite set of balls can approximate any closed smooth manifold arbitrarily close.
Kruithof, Nico, Vegter, Gert
openaire   +2 more sources

Determinants of the Bovine Leukemia Virus Envelope Glycoproteins Involved in Infectivity, Replication and Pathogenesis

open access: yesViruses, 2016
Interaction of viral envelope proteins with host cell membranes has been extensively investigated in a number of systems. However, the biological relevance of these interactions in vivo has been hampered by the absence of adequate animal models.
Alix de Brogniez, Jan Mast, Luc Willems
doaj   +1 more source

Periodic and Solitary Wave Solutions for the One-Dimensional Cubic Nonlinear Schrödinger Model

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2022
Using a similar approach as Korteweg and de Vries, [19], we obtain periodic solutions expressed in terms of the Jacobi elliptic function cn, [3], for the self-focusing and defocusing one-dimensional cubic nonlinear Schrödinger equations.
Bica Ion, Mucalica Ana
doaj   +1 more source

A Comparative Study of Parameter Identification Methods for Asymmetric Nonlinear Systems with Quadratic and Cubic Stiffness

open access: yesSensors, 2022
Understanding the nonlinear dynamic characteristics of engineering structures is challenging, especially for the systems that exhibit asymmetric nonlinear behavior.
Shibo Wang, Bin Tang
doaj   +1 more source

Confidence-Constrained Support Vector Regression for Geological Surface Uncertainty Modeling

open access: yesIEEE Access, 2020
Reconstruction of complex geological surface is widely used in oil and gas exploration, geological modeling, geological structure analysis, and other fields. It is an important basis for data visualization and visual analysis in these fields.
Shicheng Yu, Ting Chen, Guangmin Hu
doaj   +1 more source

Study of the Vernier Effect Based on the Fabry–Perot Interferometer: Methodology and Application

open access: yesPhotonics, 2021
The optical Vernier effect is a powerful tool for improving the sensitivity of an optical sensor, which relies on the use of two sensor units with slightly detuned frequencies.
Haitao Gao   +6 more
doaj   +1 more source

Meeting Review: 2018 International Workshop on Structure and Function of the Lentiviral gp41 Cytoplasmic Tail

open access: yesViruses, 2018
Recent developments in defining the role of the lentiviral envelope glycoprotein (Env) cytoplasmic tail (CT) in Env trafficking and incorporation into virus particles have advanced our understanding of viral replication and transmission.
Melissa V. Fernandez, Eric O. Freed
doaj   +1 more source

Differential Pathogenicity of SHIV KB9 and 89.6 Env Correlates with Bystander Apoptosis Induction in CD4+ T cells

open access: yesViruses, 2019
SHIV variants KB9 and 89.6 show differential pathogenesis in primate models with KB9 causing rapid CD4 decline while 89.6 failing to induce disease.
Tugba Mehmetoglu-Gurbuz   +2 more
doaj   +1 more source

A VLP-Based Vaccine Candidate Protects Mice against Japanese Encephalitis Virus Infection

open access: yesVaccines, 2022
Japanese encephalitis virus (JEV) is the leading cause of epidemic encephalitis in Asia, and vaccination is the most effective way to prevent JE. Although several licensed vaccines were widely used, there is still a demand for developing safer, cheaper ...
Limin Yang   +8 more
doaj   +1 more source

Genetic Stability The Protein Encoding Envelope (E) Genes Dengue Virus Serotype-4 Passaged in Vero Cell As A Candidate Chimera Vaccine Material

open access: yesJournal of Stem Cell Research and Tissue Engineering, 2021
This study aims to  analyze   genetic stability of  the gene encoding the envelope protein (E) dengue virus serotype-4 passaged in vero cells, Denv-4 passaged  in vero cells serially then continued with RNA extraction at passage 0, 10, 20, 30, 40 ,50 ...
deya karsari
doaj   +1 more source

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