Notes

KR20 and KR21 for many Nondichotomous Data (It is not just Cronbach's Leader).
To experimentally document details of the irradiations, the spot width was mapped along the central beam axis using a new technique based on a PSD and a time-to-distance conversion procedure. Analysing the proton data in the framework of Birks model, the graphite calorimeter gave akB= (11.2±0.4) mg MeV-1cm-2quenching parameter for BCF-60 in agreement with literature values. The consistency between the calorimetric results and the other sources of information supports the validity of the new method, and we therefore aim to apply it for characterization of other detectors in more intense beams where ionometry cannot serve as reference.Focused electron and laser beams have shown the ability to form the nanoscale pores in SiNx membranes. During the fabrication process, areas beyond the final nanopore location will inevitably be exposed to the electron beams or the laser beams due to the need for localization, alignment, and focus. It remains unclear how these unintended exposures affect the integrity of the membrane. In this work, we demonstrated the use of confocal scanning photoluminescence (PL) for mapping the microscopic changes in SiNx nanopores under the influence of electron and laser beam exposure. We developed and validated a model for the quantitative interpretation of the scanned PL result. The model shows that the scanning PL result is insensitive to the nanopore size. Instead, it is dominated by the product of two microscopic material factors quantum yield profile (i.e., electronic structure variations) and thickness profile (i.e., thinning down of membrane thickness). We experimentally demonstrated that the electron and laser beams could alter the material electronic structures (i.e., quantum yield) even when no thinning down of membrane thickness occurs. Our results suggest the minimizing the unintended e-beam or laser beam to the SiNx during the fabrication is crucial if one desires the microscopic integrity of the membrane.The Guided Tissue Regeneration (GTR) technique can be applied in dentistry and other medical specializations, such as orthopedics. In modern dentistry, GTR has been used in periodontics and implantology to treat periodontal defects, reconstruct lost, damaged and atrophied bone tissue in dental implant procedures or to preserve as alveolar bases after tooth extraction. In order to create and improve new therapies and/or to develop new biomaterials that restore, improve or prevent aggravation of compromised tissue function, poly (ε-caprolactone) (PCL) polymer membranes obtained by the electrospinning process were associated with two plant extracts, Pterodon pubescens Benth (P. pubescens) and/or Arrabidaea chica Verlot (A. chica) which are characterized by their pharmacological activities of anti-inflammatory and healing action, respectively. Scanning Electron Microscopy (SEM) images showed the fiber morphology with the average diameter and where, as the hydrophilicity of the polymer membranes, they were evaluated by measuring the contact angle of the surface. High-Performance Liquid Chromatography (HPLC) evaluated the ability to release active ingredients. Cytotoxicity and cell proliferation assays performed in vitro on NIH-3T3 cells for 1, 3 and 7 days. Electrospun PCL membranes associated with plant extracts P. pubescens and/or A. chica presented a controlled release profile of the active principles induced fibroblast formation, suggesting that they are promising and suitable for applications in guided tissue regeneration.CuO / CNT / Bi2WO6 composites were synthesized by solvothermal and impregnation-calcination method. This material combines the advantages of CuO, carbon nanotubes (referred to as CNTs) and Bi2WO6. The photocatalytic activity of the catalyst was evaluated by degrading phenolic organic pollutants such as p-nitrophenol and phenol under visible light. Compared with pure Bi2WO6, the photocatalytic activity of CuO / CNT / Bi2WO6 composites is significantly increased by 3.52 times. The main reason for the increased activity is that the doped CNT and CuO promote the separation of photogenerated hole and electron pairs. In addition, the coupling of π-π electrons on the CNT surface with the pollutants promotes the adsorption of the pollutants on the photocatalyst surface. The degradation rate of pure photocatalytic degradation of phenol can reach 60%. Under the synergistic effect of H2O2, the degradation rate of phenol can reach 94%, which is 1.56 times higher than that of pure photocatalysis. The UV-vis absorption spectrum shows that CuO / CNT / Bi2WO6 has stronger light absorption ability in both visible and ultraviolet light regions. The trapping experiments of active species show that h + and • OH are the main active substances for photocatalytic degradation of phenol. This paper proposes a Z scheme mechanism to improve the photocatalytic performance.We report the fabrication and characterization of metal-insulator-metal diodes incorporating vertically aligned carbon nanotube (VACNT) arrays encased in polymer for applications in high frequency optoelectronics. Polydimethylsiloxane (PDMS) and epoxy infiltrating media are used in this study. VACNT forests are embedded with polymer to form a planarized surface over which an array of tunneling diodes is fabricated. Diodes comprising Al2O3 and HfO2 dielectric multilayers achieve highly nonlinear and asymmetric current-voltage characteristics. find more Results show that asymmetry in excess of 92 can be achieved with multi-insulator barrier tuning, though there is a strong correlation between asymmetry, resistance, and device longevity. With our best performing and most stable device structure (PDMS-VACNT/Al2O3-HfO2-Al2O3-HfO2/PEDOTPSS), we provide a demonstration of optical-to-d.c. rectification at 638 nm, realizing a current responsivity of 0.65 µA/W. Our approach to fabricating these VACNT diode arrays is facile and highly scalable. It is capable of being integrated with solution-processed materials and soft lithography techniques to create flexible devices for optical and infrared detection.Purpose Temperature measurement during superficial hyperthermia is limited by poor spatial resolution. We investigated two sheets to improve temperature monitoring of the skin surface. Methods and materials Two different sheets were studied with a grid of temperature sensors with one sensor per ~5 cm2. The first was a matrix of multisensor thermocouple probes laced through a silicone sheet. The second sheet had rows of thermistors connected by meandering copper leads mounted on stretchable printed circuit board (SPCB). Accuracy, temperature resolution and two hour stability of both sheets were investigated. Furthermore, we determined the ability to follow body contours, thermal conduction errors and electromagnetic (EM) compatibility to clinically used 434 and 915 MHz hyperthermia applicators. Results For both sheets the accuracy (≤0.2 °C), temperature resolution (≤0.03 °C) and stability (≤0.01°C hr-1) were adequate for clinical use. Thermal conduction errors ranged from 5.25 - 11.25 mm vs. 2.15 mm for the thermocouple probe and thermistor, respectively.
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