48 research outputs found
ACCESS-OM2 v1.0: a global ocean-sea ice model at three resolutions
We introduce ACCESS-OM2, a new version of the oceanâsea ice model of the Australian Community Climate and Earth System Simulator. ACCESS-OM2 is driven by a prescribed atmosphere (JRA55-do) but has been designed to form the oceanâsea ice component of the fully coupled (atmosphereâlandâoceanâsea ice) ACCESS-CM2 model. Importantly, the model is available at three different horizontal resolutions: a coarse resolution (nominally 1â horizontal grid spacing), an eddy-permitting resolution (nominally 0.25â), and an eddy-rich resolution (0.1â with 75 vertical levels); the eddy-rich model is designed to be incorporated into the Bluelink operational ocean prediction and reanalysis system. The different resolutions have been developed simultaneously, both to allow for testing at lower resolutions and to permit comparison across resolutions. In this paper, the model is introduced and the individual components are documented. The model performance is evaluated across the three different resolutions, highlighting the relative advantages and disadvantages of running oceanâsea ice models at higher resolution. We find that higher resolution is an advantage in resolving flow through small straits, the structure of western boundary currents, and the abyssal overturning cell but that there is scope for improvements in sub-grid-scale parameterizations at the highest resolution
The Significance of Intercutural differences at Non-Profit Organizations
This is a research about the intercultural differences at NPO, basically under the the environment of China, comparing and managing culture differences bewtween minority and majority in China. Also comparing the multicultural difference within a Chinese NPO.BscManagement and Business Administrationv
Low Power Consumption Hybrid-Integrated Thermo-Optic Switch with Polymer Cladding and Silica Waveguide Core
Taking advantage of the large thermo-optical coefficient of polymer materials, a hybrid-integrated thermo-optic switch was designed and simulated. It is also compatible with the existing silica-based planar light-wave circuit (PLC) platform. To further reduce the power consumption, we introduced the air trench structure and optimized the structural parameters of the heating region. This scheme is beneficial to solving the problem of the large driving power of silica-based thermo-optic switches at this stage. Compared with the switching power of all-silica devices, the power consumption can be reduced from 116.11 mW (TE) and 114.86 mW (TM) to 5.49 mW (TE) and 5.96 mW (TM), which is close to the driving power of the reported switches adopting polymer material as the core. For the TE mode, the switchâs rise and fall times were 121 ”s and 329 ”s. For the TM mode, the switch times were simulated to be 118 ”s (rise) and 329 ”s (fall). This device can be applied to hybrid integration fields such as array switches and reconfigurable add/drop multiplexing (ROADM) technology
Synthesis of novel bone-targeted agents for treatment of osteoporosis
318-321Novel bone-targeted agents have been designed and syntheÂsized by the combination of raloxifene and bisphosphonates. The anti-osteoporosis effect has been evaluated by bone mineral density (BMD) obtained from ovariectomized (OVX) mice in vivo. The results indicate that the compounds 8 and 9 not only prevent ovariectomy induced loss of bone but also enhance BMD to 7.09 and 12.59% compared to sham-operated control, respectively
K-UniMorph: Korean Universal Morphology and its Feature Schema
We present in this work a new Universal Morphology dataset for Korean.
Previously, the Korean language has been underrepresented in the field of
morphological paradigms amongst hundreds of diverse world languages. Hence, we
propose this Universal Morphological paradigms for the Korean language that
preserve its distinct characteristics. For our K-UniMorph dataset, we outline
each grammatical criterion in detail for the verbal endings, clarify how to
extract inflected forms, and demonstrate how we generate the morphological
schemata. This dataset adopts morphological feature schema from Sylak-Glassman
et al. (2015) and Sylak-Glassman (2016) for the Korean language as we extract
inflected verb forms from the Sejong morphologically analyzed corpus that is
one of the largest annotated corpora for Korean. During the data creation, our
methodology also includes investigating the correctness of the conversion from
the Sejong corpus. Furthermore, we carry out the inflection task using three
different Korean word forms: letters, syllables and morphemes. Finally, we
discuss and describe future perspectives on Korean morphological paradigms and
the dataset.Comment: Findings of the Association for Computational Linguistics: ACL 202
Design of Suspended Slot Racetrack Microring Refractive Index Sensor Based on Polymer Nanocomposite
Recently, polymer nanocomposites have attracted great interest due to their remarkable characteristics of high performance and enabling production of low-cost devices. This article explores the reflective index sensing application of the polymer nanocomposite IOC-133, which is a TiOx/polymer nanocomposite with a reflective index between 1.8 and 1.9. Considering the material properties of high reflective index, low absorption loss, and compatibility with nanoimprint lithography, a microring-based reflective index sensor with a suspended slot waveguide structure is proposed. We combined the sensing mechanism of slot waveguides with high reflective index polymer nanocomposites and designed the suspended structure to address the problem of decreasing sensitivity caused by residual layers. The sensing device was adopted as a microring resonator, which is conducive to large-scale integration. The finite-difference time-domain (FDTD) method was employed to analyze the effects of several key parameters. The results showed that the racetrack microring sensor we propose can achieve a high sensitivity of 436 nm/RIU (Refractive Index Units), about six times higher than the microring sensor with a ridge waveguide. The Q factor of the microring reaches 1.42 Ă 104, and the detection limit is 1.38 Ă 10â4 RIU. The proposed suspended slot microring sensor has potential value in the field of nanoprinted photonic integrated circuits
Intense Broadband Emission in the Unconventional 3D Hybrid Metal Halide via HighâPressure Engineering
Abstract Developing hybrid metal halides with selfâtrapped exciton (STE) emission is a powerful and promising approach to achieve singleâcomponent phosphors for wideâcolorâgamut display and illumination. Nevertheless, it is difficult to generate STEs and broadband emission in the classical and widely used 3D systems, owing to the great structural connectivity of metalâhalogen networks. Here, high pressure is implemented to achieve dual emission and dramatical emission enhancement in 3D metal halide of [Pb3Br4][O2C(CH2)2CO2]. The pressureâinduced new emission is ascribed to the radiation recombination of STEs from the Pb2Br2O2 tetrahedra with the promoted distortion through the isostructural phase transition. Furthermore, the wide range of emission chromaticity can be regulated by controlling the distortion order of different polyhedral units upon compression. This work not only constructs the relationship between structure and optical behavior of [Pb3Br4][O2C(CH2)2CO2], but also provides new strategies for optimizing broadband emission toward potential applications in solidâstate lighting
Construction of a Core Collection of Germplasms from Chinese Fir Seed Orchards
Chinese fir (Cunninghamia lanceolata (Lamb.) Hook) is one of the most important tree species for afforestation in China. First-, second-, and third-generation seed orchards of Chinese fir have been established successively, and rich germplasms have been accumulated in the process of genetic improvement. It is necessary to build a core collection of germplasms from Chinese fir seed orchards. In this work, we constructed core collections representing the genetic diversity of Chinese fir seed orchard resources based on SSR data. A total of 607 seed orchard materials from three generations were used to determine the best sampling method and intensity by comparing and analyzing nine methods for constructing core collections. Core Hunter’s multi-strategy optimizes allele coverage and the distance criterion under a 30% sampling intensity (weight: A–NE, 0.7; CV, 0.3 and E–NE, 0.5; CV, 0.5), which is superior to other strategies and was selected as the best method. The two core collections (A–NE&CV73, E–NE&CV55) constructed contained all the alleles of the whole collection and effectively limited the homology in the core collections; each core collection contained 182 accessions. Our findings could contribute greatly towards improving the management of genetic resources in Chinese fir seed orchards and provide elite materials for future studies
Highly Sensitive Liquid M-Z Waveguide Sensor Based on Polymer Suspended Slot Waveguide Structure
The slot structure has great advantages in improving the sensitivity of integrated waveguide optical sensors and reducing the detection limit. We propose a polymer Mach–Zehnder interferometer (MZI) optical sensor based on the slot structure and adopted the suspended structure to improve optical field interaction with the analyte, hence boosting the sensor’s sensing accuracy. In this paper, the effects of the single waveguide width, slot width, and coupling structure of the slot waveguide on the performance of the sensor operating at a 1550 nm wavelength were analyzed. Under the premise of satisfying single-mode transmission, we designed an MZI with a branch spacing of 10 µm, arm length of 2045 µm, branch span of 700 µm, and slot region of 500 µm. The sensor’s average sensitivity was 972.1 dB/RIU, and its average detection resolution was 1.6 × 10−6 RIU, which is approximately 1.5 times higher than that of the suspended strip waveguide, 1.6 times higher than that of the non-suspended slot structure, and 2.1 times higher than that of the non-suspended strip waveguide