Results 51 to 60 of about 5,698,007 (273)

A Neural Network Solution to Singular Configuration in Trajectory Tracking of a Serial Robot [PDF]

, 2009
Singularities and uncertainties in arm configurations are the main problems in kinematics of serial robots. The complexity in the solution arises from robots geometry and non-linear equations (trigonometric equations) occur when transforming between ...
Hasan, Ali T.
core  

Taming Supersymmetric Defects in 3d-3d Correspondence

, 2015
We study knots in 3d Chern-Simons theory with complex gauge group $SL(N,\mathbb{C})$, in the context of its relation with 3d $\mathcal{N}=2$ theory (the so-called 3d-3d correspondence). The defect has either co-dimension 2 or co-dimension 4 inside the 6d
Gang, Dongmin, Kim, Nakwoo, Romo, Mauricio, Yamazaki, Masahito   +3 more
core   +1 more source

An $$ \mathcal{N}=1 $$ 3d-3d correspondence [PDF]

Journal of High Energy Physics, 2018
AbstractM5-branes on an associative three-cycleM3in aG2-holonomy manifold give rise to a 3d$$ \mathcal{N}=1 $$N=1supersymmetric gauge theory,$$ {T}_{\mathcal{N}=1}\left[{M}_3\right] $$TN=1M3. We propose an$$ \mathcal{N}=1 $$N=13d-3d correspondence, based on two observables of these theories: the Witten index and theS3-partition function.
Eckhard, Julius, Schäfer-Nameki, Sakura, Wong, Jin-Mann   +2 more
openaire   +2 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

3D Depthwise Convolution: Reducing Model Parameters in 3D Vision Tasks

, 2018
Standard 3D convolution operations require much larger amounts of memory and computation cost than 2D convolution operations. The fact has hindered the development of deep neural nets in many 3D vision tasks. In this paper, we investigate the possibility
CB Choy, R Girdhar, S Ji, S Song, Y Li, Ö Çiçek   +5 more
core   +1 more source

SimpleRecon: 3D Reconstruction Without 3D Convolutions

, 2022
Traditionally, 3D indoor scene reconstruction from posed images happens in two phases: per-image depth estimation, followed by depth merging and surface reconstruction. Recently, a family of methods have emerged that perform reconstruction directly in final 3D volumetric feature space.
Sayed, M, Gibson, J, Watson, J, Prisacariu, V, Firman, M, Godard, C   +5 more
openaire   +2 more sources

Cell wall target fragment discovery using a low‐cost, minimal fragment library

FEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan, Mathew Stanley, Olawale Raimi, Andrew T. Ferenbach, Helge C Dorfmueller, Daan M. F. van Aalten   +5 more
wiley   +1 more source

An Accelerated Iterative Cone Beam Computed Tomography Image Reconstruction Approach

مجلة النهرين للعلوم الهندسية, 2019
Cone-beam computed tomography (CBCT) is an indispensable method that reconstructs three dimensional (3D) images. CBCT employs a mathematical technique of reconstruction, which reveals the anatomy of the patient’s body through the measurements of ...
Shimaa Abdulsalam Khazal, Mohammed Hussein Ali   +1 more
doaj   +1 more source

3D PHOVIS: 3D photoacoustic visualization studio

Photoacoustics, 2020
Photoacoustic (PA) imaging (or optoacoustic imaging) is a novel biomedical imaging method in biological and medical research. This modality performs morphological, functional, and molecular imaging with and without labels in both microscopic and deep tissue imaging domains.
Seonghee Cho, Jinwoo Baik, Ravi Managuli, Chulhong Kim   +3 more
openaire   +3 more sources

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source