Results 61 to 70 of about 9,369,738 (276)
Five-Brane Effective Field Theory on Calabi-Yau Threefolds
, 1993 We consider the compactification of the dual form of $N=1$ $D=10$ supergravity on a six-dimensional Calabi-Yau manifold. An $N=1$ off-shell supergravity effective Lagrangian in four dimensions can be constructed in a dual version of the gravitational ...
D'Auria, R., Ferrara, S., Villasante, M.
core +1 more source
Effect of Wedge-Shaped Deflectors on Flow Fields of Dual-Stream Jets [PDF]
, 2007 The effect of wedge-shaped fan flow deflectors on the mean and turbulent flow-fields of dual-stream jets is investigated. Several wedge-shaped deflector concepts were used to create asymmetry in the plume of a dual-stream jet issuing from a scaled down ...
Papamoschou, Dimitri +2 more
core +1 more source
Investigating Patients with Pulmonary Hypertension Under Detector-Based Spectral Computed Tomography
DiagnosticsBackground: Pulmonary hypertension (PH) is characterized by elevated pressure in the pulmonary artery. Currently, most dual-energy CT (DECT) research focuses on the application of iodine mapping in pulmonary embolism. However, little attention is paid to
Hsien-Fu Cheng +2 more
doaj +1 more source
Automated detection of bone splinters in DEXA phantoms using deep neural networks
Current Directions in Biomedical Engineering, 2019 Dual energy radiographic imaging is a method to provide material information and can be used to differentiate between various tissue types. Dual energy X-ray absorption (DEXA) can be applied for breast density, osteoporosis or bone fracture analysis.
Rüger Steffen +5 more
doaj +1 more source
Advances in Computed Tomography Evaluation of Skull Base Diseases
International Archives of Otorhinolaryngology, 2014 Introduction Computed tomography (CT) is a key component in the evaluation of skull base diseases. With its ability to clearly delineate the osseous anatomy, CT can provide not only important tips to diagnosis but also key information for surgical ...
Luciano M. Prevedello
doaj +1 more source
Exceptional unification of families and forces
Nuclear Physics B, 2020 This work considers the remarkable suggestion that the three families of quarks and leptons may be unified, together with the Higgs and gauge fields of the Standard Model (SM), into a single “particle”, namely the 248 vector superfield of a ten ...
Alfredo Aranda +2 more
doaj +1 more source
Towards a Big Crunch Dual [PDF]
, 2004 We show there exist smooth asymptotically anti-de Sitter initial data which evolve to a big crunch singularity in a low energy supergravity limit of string theory.
D. Sudarsky +20 more
core +3 more sources
Image domain dual material decomposition for dual-energy CT using butterfly network. [PDF]
Medical Physics (Lancaster), 2018 PURPOSE Dual-energy CT (DECT) has been increasingly used in imaging applications because of its capability for material differentiation. However, material decomposition suffers from magnified noise from two CT images of independent scans, leading to ...
Wenkun Zhang +8 more
semanticscholar +1 more source
CT Lilun yu yingyong yanjiu, 2022 Objective: To investigate the application value of dual-energy scanning scheme in neck-chest-abdomen-pelvis combined enhanced CT in patients with breast cancer patients by comparing with the conventional scanning scheme. Methods: A retrospective analysis
Hong WANG +6 more
doaj +1 more source
Dual-Topology Hamiltonian-Replica-Exchange Overlap Histogramming Method to Calculate Relative Free Energy Difference in Rough Energy Landscape [PDF]
, 2006 A novel overlap histogramming method based on Dual-Topology Hamiltonian-Replica-Exchange simulation technique is presented to efficiently calculate relative free energy difference in rough energy landscape, in which multiple conformers coexist and are ...
Bitter-Putzer, Ryan +4 more
core +2 more sources