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Surface digitizations by dilations which are tunnel-free

C. Lincke, C.A. Wüthrich
2003 Discrete Applied Mathematics  
As a consequence we determine the domains for tunnel-free surface digitizations.  ...  It will be proven that the supercover and the grid-intersection digitization of every surface with or without boundary is always tunnel-free. ?  ...  Tunnel-free surface digitizations In this section tunnel-free digitizations by dilations will be studied for surfaces with or without boundary.  ... 
doi:10.1016/s0166-218x(02)00225-1 fatcat:3wtbmivzcvftpgx7sqg5iru5aa

Surface Digitizations by Dilations Which Are Tunnel-Free [chapter]

Christoph Lincke, Charles A. Wüthrich
2000 Lecture Notes in Computer Science  
As a consequence we determine the domains for tunnel-free surface digitizations.  ...  It will be proven that the supercover and the grid-intersection digitization of every surface with or without boundary is always tunnel-free.  ...  Tunnel-Free Surface Digitizations In this section tunnel-free digitizations by dilations will be studied for surfaces with or without boundary.  ... 
doi:10.1007/3-540-44438-6_22 fatcat:mckm3d6jbrcg3ksva3ybirkoaq

Page 524 of Mathematical Reviews Vol. , Issue 2004a [page]

2004 Mathematical Reviews  
|Wiithrich, Charles Albert] (D-WEIMME-CGV; Weimar) Surface digitizations by dilations which are tunnel-free.  ...  As a consequence we determine the domains for tunnel-free surface digitizations.  ... 

Bone Plug Fixation in ACL Reconstruction: A Clinical and Radiological Assessment of Post-Operative Tunnel Widening

ABDELAZEZ SENGERGY, M.D.; HISHAM MISBAH, M.D., HAZEM FAROUK, M.D.; TAREK BEN ZIAD MORAD, M.D., SABRY M.H. MANAA, M.D.; AHMED SHABAN HASSAN, M.D., AHMED HAMDYTOLBA, M.D.
2021 The Medical journal of Cairo University  
Free cylindrical bone plugs has been used as a graft fixation method successfully. Still some concerns exist about how well these plugs integrate with the bony walls of the tunnel.  ...  Conclusion: Free cylindrical bone plug could be used safely for hamstring tendon graft fixation. It enhances bone to bone healing and tunnel narrowing within the first 6 months.  ...  Complications related to internal fixation devices are many, and tunnel dilatation are among those which might jeopardise graft stability and makes any revision surgery even more difficult.  ... 
doi:10.21608/mjcu.2021.225302 fatcat:347lfocqdjb6nnmrmkhyrrqkxm

Automatic Particle Tracking Velocimetry Beneath A Wind-Stressed Wavy Water Surface With Image Processing

Dietmar Wierzimok, Bernd Jähne
1989 Zenodo  
The turbulent flow in water close to the wavy wind-stressed water surface has been measured in a large circular wind-water tunnel with a low cost image processing system, using a CCD camera.  ...  The flow field beneath the moving air-water interface is being visualized by small particles illuminated by a thin light sheet.  ...  The first results are encouraging. The next steps aim at an improvement of the accuracy of the velocity into the subpixel range by the use of grey value instead of binary image sequences.  ... 
doi:10.5281/zenodo.14004 fatcat:lbzw6setergmzfi53zwf72arpq

Centrifuge modeling of normal faulting and underground tunnel in sandy soil deposit

Ali Nabizadeh, Alireza Seghateh Mojtahedi
2021 Soils and Rocks  
of the ground surface with tunnel presence and the effect of tunnel rigidity and soil density on fault tunnel interaction.  ...  The objective of this paper is to study the interaction of an embedded tunnel within a soil layer and the soil deformations imposed upon by normal faulting.  ...  Because of centrifuge tests are too expensive, more parametric studies are needed by numerical analysis, which could be verified with the test results of normal faulting; 2.  ... 
doi:10.28927/sr.2021.059520 fatcat:vkm7n2kkrzcuvgftf7qxsmwmn4

Scanning electron microscopic study of dermatoglyphics in carpal tunnel syndrome

M. C. Sbernardori, V. Mazzarello, P. Bandiera, A. Pirino, C. Fabbriciani, A. Montella
2006 Journal of Orthopaedics and Traumatology  
Even the dermal ridges differed from the controls: in the pathological digits these were less flattened, more elevated and  ...  by scanning electron microscopy with the aim of analysing its threedimensional features.  ...  These sweat glands show dilated pores which may be trying to balance the low grade of hydrosis.  ... 
doi:10.1007/s10195-006-0137-6 fatcat:smzjgbqeorcwlcqqtrnkv5swyq

Implicit Digital Surfaces in Arbitrary Dimensions [chapter]

Jean-Luc Toutant, Eric Andres, Gaelle Largeteau-Skapin, Rita Zrour
2014 Lecture Notes in Computer Science  
The digital implicit surface is the result of a morphology inspired digitization of an implicit surface {x ∈ R n : f (x) = 0} which is the boundary of a given closed subset of R n , {x ∈ R n : f (x) ≤  ...  Under some constraints, the digital implicit surface has some interesting properties, such as k-tunnel freeness, and can be analytically characterized.  ...  This allows us to analytically characterize k-tunnel free implicit digital surfaces.  ... 
doi:10.1007/978-3-319-09955-2_28 fatcat:ml2ssok3izdgvdjr6mpohbojp4

Digital Surface of Revolution with Hand-Drawn Generatrix

Eric Andres, Lydie Richaume, Gaelle Largeteau-Skapin
2017 Journal of Mathematical Imaging and Vision  
One can choose the topology of the surface that may have 1-tunnels, 0tunnels or no tunnels with applications in 3D printing for instance. An online tool that illustrates the method is proposed.  ...  In this paper we present a simple method to create general 3D digital surfaces of revolution based on a 2D implicit curve of revolution (therefore not limited to a circle) and a hand-drawn generatrix.  ...  Acknowledgement: This work has been supported by the CPER 2015-2020, NUMERIC Program and FEDER-FSE MODEGA Project of the Nouvelle-Aquitaine Region, France. we would like to thank Aurélie Mourier, http:  ... 
doi:10.1007/s10851-017-0708-6 fatcat:igignrqexzgwdj53kvkv3vd26y

Digital Surfaces of Revolution Made Simple [chapter]

Eric Andres, Gaelle Largeteau-Skapin
2016 Lecture Notes in Computer Science  
In this paper we present a new, simple, method for creating digital 3D surfaces of revolution. One can choose the topology of the surface that may have 0, 1 or no tunnels.  ...  Acknowledgement: This work has been supported by the CPER 2015-2020, NUMERIC Program and FEDER-FSE Project MODEGA of the Poitou-Charentes Region, France.  ...  The generatrix and the curve of revolution are combined in order to obtain a 3D implicit surface that is then digitized into 0, 1 or 2-tunnel free digital surfaces of revolution.  ... 
doi:10.1007/978-3-319-32360-2_19 fatcat:625ikaaniva2znz766p45snkdy

Tracheostomaplasty: A surgical method for improving retention of an intraluminal stoma button for hands-free tracheoesophageal speech

Mauricio A. Moreno, Jan S. Lewin, Katherine A. Hutcheson, Julie K. Bishop Leone, Denise A. Barringer, Gregory P. Reece
2010 Head and Neck  
Three patients only retained the intraluminal device to facilitate digital occlusion. Tracheostomaplasty failed in 3 patients because of granulation tissue formation or stomal stenosis.  ...  At last follow-up, 15 (71%) patients successfully achieved hands-free TE speech using an intraluminal stoma button.  ...  by either manual occlusion of the stoma or the use of a hands-free speaking valve.  ... 
doi:10.1002/hed.21379 pmid:20848405 pmcid:PMC4061978 fatcat:pt6vyawlpndvxh7mnmsk6itv7e

Glass cutting by femtosecond pulsed irradiation

Egidijus Vanagas
2004 Journal of Micro/Nanolithography  
It is demonstrated that the damage on the rear surface was induced by the stress waves, which originated from the plasma ablation pressure pulse.  ...  The mechanism of femtosecond-laser cutting of transparent materials at high irradiance and the influence of stress waves generated by plasma plume are discussed.  ...  while for ␥Ӷ1 the tunneling is the main mechanism providing free electrons.  ... 
doi:10.1117/1.1668274 fatcat:mabf6nzugfhyhgnqse5ehwy6ly

Topology correction in brain cortex segmentation using a multiscale, graph-based algorithm

Xiao Han, Chenyang Xu, U. Braga-Neto, J.L. Prince
2002 IEEE Transactions on Medical Imaging  
We provide an alternate approach that has several advantages over their approach, including the use of arbitrary digital connectivities, a flexible morphology-based multiscale approach, and the option  ...  Most cortical surface reconstruction methods either ignore topology or correct it using manual editing or methods that lead to inaccurate reconstructions.  ...  In digital images, the existence of handles depends on the chosen connectivity . The same explanation of handles is applicable to surfaces, which are two-dimensional objects in 3-D space.  ... 
doi:10.1109/42.993130 pmid:11929099 fatcat:hu2jmlgfhvfezjobr3opis4g5y

Graph-Based Topology Correction for Brain Cortex Segmentation [chapter]

Xiao Han, Ulisses Braga-Neto, Jerry L. Prince, Chenyang Xu
2001 Lecture Notes in Computer Science  
We provide an alternate approach that has several advantages over their approach, including the use of arbitrary digital connectivities, a flexible morphology-based multiscale approach, and the option  ...  Most cortical surface reconstruction methods either ignore topology or correct it using manual editing or methods that lead to inaccurate reconstructions.  ...  In digital images, the existence of handles depends on the chosen connectivity . The same explanation of handles is applicable to surfaces, which are two-dimensional objects in 3-D space.  ... 
doi:10.1007/3-540-45729-1_40 fatcat:u2vrieluhbdxlo5qdlcogi6774

In Situ Diagnosis of Scabies Using a Handheld Digital Microscope in Resource-Poor Settings-A Proof-of-Principle Study in the Amazon Lowland of Colombia

Hollman Miller, Julian Trujillo-Trujillo, Hermann Feldmeier
2018 Tropical Medicine and Infectious Disease  
The "experienced mother" removed the parasite with a fine needle and placed it on a flat surface in order to enable its direct examination with the digital microscope.  ...  Besides, digital microscopy revealed pathological characteristics of scabies hitherto unknown and impossible to be seen in dermoscopy, such as partially or totally obliterated tunnels, tunnels with multiple  ...  In accordance with Resolution 008430 of 1993 of the Ministry of Health and Social Protection of Colombia which regulates research in humans, the study was classified as risk-free, because the examination  ... 
doi:10.3390/tropicalmed3040116 pmid:30400187 pmcid:PMC6306717 fatcat:hpvgrum63jabvoon363hlse2iy
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