WebBlackbody radiation (BBR) temperature and its uncertainty mainly contribute to the BBR shift uncertainty, which is one of the challenges in most ion optical clocks. Here, an improved BBR temperature evaluation method based on the analysis of the effective solid angle of an ion trapping system using the finite element method is presented. To effectively suppress … WebJan 11, 2024 · Berberine (BBR) is a plant-based nutraceutical that has been used for millennia to treat diarrheal infections and in contemporary medicine to improve patient …
Bending Beam Rheometer Test - an overview
Webcomparable BBR sensitivity to Sr, as does Yb; all are within factors of 3 [10]. The BBR shift can be dramat-ically reduced by cooling clocks with liquid nitrogen, to near 77 K [4, 11]. This reduces the BBR shift by a factor of 200, but still, the required temperature uncertainty of ±0.6 K for 10−18 clock accuracy may be difficult [4]. WebMay 9, 2015 · Test temperatures of -40° to 25° C Three-point bend test apparatus Stainless steel, corrosion-resistant construction Computerized control, data acquisition, and … netflix originals movies 2022
Asphalt Binder Specification Tests - Asphalt Institute
WebDownload scientific diagram Comparison of (a) BBR S and m-value critical temperatures, (b) Fraass and critical BBR from publication: Complex bituminous binders, are current … WebDec 30, 2024 · So, the test temperature of BBR in this paper was −12 °C ± 0.1 °C. Creep stiffness S (60 s) and creep rate m c (60 s) were used to investigate the low-temperature performance of the asphalt binder. 3.3. Chemical composition analysis. Asphalt is a visco-elastic material and can be separated into four chemical compositions: Saturates ... WebJan 1, 2015 · The temperature of the head was adjusted to 150–200 °C depending on the type of bitumen sample, lower for bitumen with a high penetration, and higher for low penetration bitumen. After naturally cooling to ambient temperature, excess sample in the mold was removed with a heated spatula. Fig. 1 Preparation of a sample specimen on 4 … netflix original shows