Self-supervised learning has witnessed great progress in vision and NLP; recently, it also attracted much attention to various medical imaging modalities such as X-ray, CT, MRI. Existing methods mostly focus on building new pretext self-supervision tasks reconstruction, orientation, masking identification according the properties of images. However, publicly available models are not fully explo...

Background Cardiac diffusion MRI (CDMRI) has the potential to identify acute myocardial ischemia and assess the chronic change of myofiber orientation after a myocardial infarction [1,2]. Cardiac motion and SNR limitations have been the primary challenges for the application of the technique in vivo. A few previous in vivo studies have demonstrated the feasibility of CDMRI in humans using diffu...

Conventional two-step motion compensation (MOCO) method is widely adapted for airborne synthetic aperture radar (SAR) imaging due to its conciseness combining with the SAR focusing procedure. For two-step MOCO, rangeindependent compensation is processed before range cell migration correction (RCMC), and the range-dependent phase correction is implemented after RCMC. However, the accuracy of RCM...

Uncompensated motion errors can seriously affect the imaging quality of synthetic aperture sonars (SASs). In existing line-by-line compensation (MOCO) algorithms for wide-beam multiple-receiver SAS systems, approximate form range history error usually introduces a significant approximation error, and residual two-dimensional (2D) cell migration (RCM) caused by aperture-dependent is not correcte...

Due to the independence of azimuth-invariant assumption an echo signal, time-domain algorithms have significant performance advantages for missile-borne synthetic aperture radar (SAR) focusing with curve moving trajectory. The Cartesian factorized back projection (CFBP) algorithm is a newly proposed fast implementation which can avoid massive interpolations improve computational efficiency. How...

Synthesis of two complexes, [NBu(n)(4)][Mo(IV)O(mnt)(S-Tol)(N-N)] (N-N = 2,2'-bipyridine (1a) or 1,10-phenanthroline (1b); mnt = maleonitriledithiolate; S-Tol = toluenethiol) are reported. These on treatment with H(2)S generate the corresponding [NBu(n)(4)][Mo(IV)O(mnt)(SH)(N-N)] (2a and 2b) complexes bearing the susceptible hydrosulfide coordination. 2a (and 2b) upon chemical oxidation show EP...

Dataflow modelling languages such as SCADE or Simulink are the de-facto standard for the Model Driven Development of safety critical embedded control and command systems. Software is mainly being produced by Automated Code Generators whose correctness can only be assessed meaningfully if the input language semantics is well known. These semantics share a common part but are mainly defined throu...

For unmanned aerial vehicle (UAV) synthetic aperture radar (SAR) imaging, motion errors cannot be obtained accurately when high precision sensors are not equipped on the platform. This means that traditional data-based compensation (MOCO) directly implemented due to large measurement errors. In addition, classic autofocusing techniques, such as phase gradient autofocus (PGA) or map-drift algori...

El drenaje postural implica una combinación de técnicas, que incluyen múltiples posiciones para drenar los pulmones, percusión, vibración, respiración profunda y tos. La fisioterapia tórax, incluye técnicas permite la gravedad elimine acumulación moco en pulmones pacientes con COVID-19 dificultad respiratoria. Estas también ayudan a abrir ambas vías respiratorias llevar más oxígeno sacos aire m...

En la nueva era de comunicación, existe un protagonista entre las estrategias marcas: comunicación experiencial. Como marca, el museo no es una excepción. El presente ensayo plantea análisis del uso experiencial en barcelonés mediante tres casos estudio particulares: CCCB, Virreina Centre L’Imatge y Moco Museum Barcelona. Nuestro establece, sólo los elementos clave, sino afirmación contundente:...