9%±0.3% for the forward calculated patient plans at 3%/3mm gamma tests. Dose prediction using the trained network was very fast at approximately 0.9 seconds for the input generation and 0.6 seconds for single GPU inference per segment and 1 minute per patient in total. The overall performance of this dose calculation framework in terms of both accuracy and inference speed, makes it compelling for online adaptive workflows where fast segment dose calculations are needed. Creative Commons Attribution license.Intravital imaging of brain vasculature through the intact cranium in vivo is based on the evolution of the fluorescence intensity and provides an ability to characterize various physiological processes in the natural context of cellular resolution. The involuntary motions of the examined subjects often limit in vivo non-invasive functional optical imaging. Conventional imaging diagnostic modalities encounter serious difficulties in correction of artificial motions, associated with the rapid structural variations and fast high dynamics of the intensity values in the collected image sequences, when a common reference cannot be provided. In the current report, we introduce an alternative solution based on a time-space Fourier transform method so-called Kappa-Omega. We demonstrate that the proposed approach is effective for image stabilization of fast dynamic image sequences and can be used autonomously without supervision and assignation of a reference image. Creative Commons Attribution license.A technique for directly growing two-dimensional (2D) materials onto conventional semiconductor substrates, enabling high-throughput and large-area capability, is required to realise competitive 2D transition metal dichalcogenide devices. A reactive sputtering method based on H2S gas molecules and sequential in situ post-annealing treatment in the same chamber was proposed to compensate for the relatively deficient sulfur atoms in the sputtering of MoS2 and then applied to a 2D MoS2/p-Si heterojunction photodevice. X-ray photoelectron, Raman, and UV-visible spectroscopy analysis of the as-deposited Ar/H2S MoS2 film were performed, indicating that the stoichiometry and quality of the as-deposited MoS2 can be further improved compared with the Ar-only MoS2 sputtering method. For example, Ar/H2S MoS2 photodiode has lower defect densities than that of Ar MoS2. We also determined that the factors affecting photodetector performance can be optimised in the 8-12 nm deposited thickness range.Gold nanoparticles (AuNPs) modification shows great advantages in improving the antioxidant activity of nanoCeO2. However, the improved effect of AuNPs modification become smaller and even results the decrease of antioxidant ability due to the severe aggregation with the increase of nanomaterials' concentration. Additionally, the effects of photo-properties of AuNPs on the antioxidant activity of nanoCeO2 have not been studied. In response to these problems, a core-shell shaped Au@CeO2 was synthesized which took Au nanorods (AuNRs) as carriers and with a layer of CeO2 nanoparticles (NPs) coating. The antioxidant activity of Au@CeO2 was evaluated by UV-vis method in MV-Fenton system. Results showed that AuNRs could improve the antioxidant activity of nanoCeO2 due to the increase of Ce3+ amount on the surface of nanoCeO2, and the enhancing effect was remained across the whole experimental concentration range due to the good dispersibility of AuNRs. Additionally, a further increase of the antioxidant ability of Au@CeO2 has been found with 5 min visible light irradiation, and continuous irradiation during a 25 min time reaction resulted in more obvious enhanced antioxidant ability. This phenomenon was attributed to the localized surface plasmon resonance (LSPR) of AuNRs triggered by photons which induced charge transfer from AuNRs to nanoCeO2, thus making the recycle become easier between Ce3+ and Ce4+. © 2020 IOP Publishing Ltd.Pleural photodynamic therapy (PDT) is performed intraoperatively for the treatment of microscopic disease in patients with malignant pleural mesothelioma. Accurate delivery of light dose is critical to PDT efficiency. As a standard of care, light fluence is delivered to the prescribed fluence using 8 isotropic detectors in pre-determined discrete locations inside the pleural cavity that is filled with a dilute Intralipid solution. https://www.selleckchem.com/ An optical infrared (IR) navigation system was used during light delivery to monitor the position of the light source within the treatment cavity. The light source is tracked using a modified and improved treatment delivery wand with reflective passive markers that are seen by the infrared camera-based navigation system. This information was used to calculate the light dose, incorporating a constant scattered light dose and using a dual correction method. Calculation methods were extensively compared for 8 detector locations and 7 patient case studies. The light fluence uniformity was also quantified by representing the unraveled three-dimensional geometry on a two-dimensional plane. Calculated light fluence at the end of treatment delivery was compared to measured values from isotropic detectors. Using a constant scattered dose for all detector locations along with a dual correction method, the agreement between calculated and measured values for each detector was less than 15%. Primary light dose alone does not fully account for the light delivered inside the cavity. This is useful in determining the light dose delivered to areas of the pleural cavity between detector locations, and can prove to improve treatment delivery with implementation in real-time in the surgical setting. We concluded that the standard deviation of light fluence uniformity for the Photofrin-mediated PDT is 10%. © 2020 Institute of Physics and Engineering in Medicine.Tunas of the genusThunnusare a group of high-performance pelagic fishes with many locomotor traits that are convergently shared with other high-performance fish groups. Because of their swimming abilities, tunas continue to be an inspiration for both comparative biomechanics and the design of biomimetic autonomous underwater vehicles (AUVs). Despite the strong history of studies in tuna physiology and current interest in tuna biomechanics and bio-inspired design, we lack quantitative data on the function of many features of tunas. Here we present data on the morphology, behavior, and function of tunas, focusing especially on experimentally examining the function of tuna lateral keels, finlets, and pectoral fins by using simple physical models. We find that both triangular lateral keels and flexible finlets decrease power requirements during swimming, likely by reducing lateral forces and yaw torques (compared to models either without keels or with rectangular keels, and models with stiff finlets or strip fins of equal area, respectively).


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Last-modified: 2024-09-10 (火) 22:14:10