What is the temporal resolution of the Canon Prime SP CT scanner?5 answersThe temporal resolution of the Canon Prime SP CT scanner is 260 ps. This digital PET/CT system developed by Canon Medical Systems Corporation features SiPM technology with complete coverage and 1:1 coupling to scintillator crystals, allowing for excellent timing resolution. In contrast, other studies have focused on different imaging modalities to improve temporal resolution. For instance, a diffusive optical tomography system achieved a temporal resolution of 2.24 ns using a spread spectrum approach. Additionally, a study proposed a simulation-based technique to accurately assess the temporal resolution of a CT system, considering factors like motion direction and reconstruction algorithms, to provide a comprehensive understanding of system response to motion.
Key parameters to evaluate TFTs?3 answersKey parameters to evaluate Thin Film Transistors (TFTs) include mobility, threshold voltage, on/off current ratio, and subthreshold swing. Other important parameters are stock current, dynamic resistance, and channel closing mode. For Carbon Nanotube (CNT) based TFTs, device performance characteristics such as channel length, channel width, CNT tube length, network density, and orientation are crucial. In the case of IGZO TFTs, device parameters such as γ, Vth, and μ0 are significant, and their temperature dependence should be considered. Additionally, the effects of phosphorous concentration, hydrogen dilution of silane, temperature of the hydrogen plasma process, and annealing temperature should be analyzed for polysilicon TFT layers.
What is the connection between TPM and OEE?5 answersTotal Productive Maintenance (TPM) and Overall Equipment Effectiveness (OEE) are closely connected. TPM is a maintenance approach used in industries to optimize the utilization of existing resources and improve operational excellence. It focuses on preventive maintenance, autonomous maintenance, and quality maintenance pillars. OEE, on the other hand, is a performance metric used to measure the effectiveness of equipment in terms of availability, performance, and quality. By implementing TPM practices, such as preventive maintenance schedules, cleaning, inspection, lubrication, and operator training, companies can improve OEE by reducing downtime, minimizing setup and adjustment time, and avoiding defective products. The goal is to increase OEE to meet or exceed the standard set by industry organizations, such as the Japan Institute of Plan Maintenance (JIPM). Therefore, TPM plays a crucial role in improving OEE and overall productivity in manufacturing companies.
Is PS-OCT an accurate method of mapping corneal nerve patterns?5 answersPS-OCT is an accurate method for mapping corneal nerve patterns. The development of cellular resolution OCT technology has allowed for in-vivo visualization and mapping of the corneal sub-basal nerve plexus (SNP). A fully automated algorithm for segmentation of corneal nerves has been developed and tested on enface UHR-OCT images acquired from healthy human subjects, showing correct tracing of most sub-basal corneal nerves. Additionally, a novel weighted local phase tensor-based curvilinear structure filtering method has been proposed, which outperforms existing methods in applicability, effectiveness, and accuracy. Another method based on a sparse tracking scheme has been developed, achieving an average sensitivity of 0.85 and false detection rate of 0.05. These findings demonstrate the accuracy and effectiveness of PS-OCT in mapping corneal nerve patterns.
How much is a good resolution in RAMAN?5 answersA good resolution in Raman spectroscopy refers to the ability to distinguish closely spaced spectral lines. One paper proposes the use of a Raman spectrometer with a two-frequency laser excitation source and a sensitive optoacoustic detector to achieve high-resolution studies of lines due to stimulated Raman scattering in gaseous media at low partial pressures. Another paper mentions the harnessing of higher-order processes for super-resolution CARS vibrational microscopy. Additionally, it is noted that nonlinear Raman phenomena have only been reported since the introduction of laser sources in the past 20 years. These papers highlight the advancements in Raman spectroscopy techniques that have enabled improved resolution and the exploration of higher-order processes for achieving super-resolution imaging.
What is TP in ICU?10 answers