2,498 research outputs found
Decay of Correlation for Edge Colorings When q > 3Δ
Get PDFWe examine various perspectives on the decay of correlation for the uniform distribution over proper q-edge colorings of graphs with maximum degree Δ.
First, we establish the coupling independence property when q ≥ 3Δ for general graphs. Together with the recent work of Chen, Feng, Guo, Zhang and Zou (2024), this result implies a fully polynomial-time approximation scheme (FPTAS) for counting the number of proper q-edge colorings.
Next, we prove the strong spatial mixing property on trees, provided that q > (3+o(1))Δ. The strong spatial mixing property is derived from the spectral independence property of a version of the weighted edge coloring distribution, which is established using the matrix trickle-down method developed in Abdolazimi, Liu and Oveis Gharan (FOCS, 2021) and Wang, Zhang and Zhang (STOC, 2024).
Finally, we show that the weak spatial mixing property holds on trees with maximum degree Δ if and only if q ≥ 2Δ-1
sj-docx-1-tej-10.1177_20417314221125310 – Supplemental material for Expanding tubular microvessels on stiff substrates with endothelial cells and pericytes from the same adult tissue
No full textSupplemental material, sj-docx-1-tej-10.1177_20417314221125310 for Expanding tubular microvessels on stiff substrates with endothelial cells and pericytes from the same adult tissue by Xiuyue Song, Yali Yu, Yu Leng, Lei Ma, Jie Mu, Zihan Wang, Yalan Xu, Hai Zhu, Xuefeng Qiu, Peifeng Li, Jing Li and Dong Wang in Journal of Tissue Engineering</p
sj-docx-1-wmr-10.1177_0734242X231160077 – Supplemental material for Application of zeolite synthesized from coal fly ash via wet milling as a sustainable resource on lead(II) removal
No full textSupplemental material, sj-docx-1-wmr-10.1177_0734242X231160077 for Application of zeolite synthesized from coal fly ash via wet milling as a sustainable resource on lead(II) removal by Wenxia Wang, Zihan Zheng, Chao Feng, Xiangpeng Gao, Yu Qiao and Minghou Xu in Waste Management & Research</p
sj-pdf-1-eab-10.1177_00139165211045095 – Supplemental material for The Relationship Between City “Greenness” and Homicide in the US: Evidence Over a 30-Year Period
No full textSupplemental material, sj-pdf-1-eab-10.1177_00139165211045095 for The Relationship Between City “Greenness” and Homicide in the US: Evidence Over a 30-Year Period by Jonnell C. Sanciangco, Gregory D. Breetzke, Zihan Lin, Yuhao Wang, Kimberly A. Clevenger and Amber L. Pearson in Environment and Behavior</p
Utilizing waste from the pulp and paper industry: optimizing the production of fuels from black liquor
Get PDFSustainable IndustryUWill Discover Abstract, Winter 2019 Zihan Wang, MASc Environmental Engineering candidate Dr. Jerald A. Lalman, Advisor Department of Civil and Environmental Engineering, University of Windsor, Windsor, Ontario Title: Utilizing waste from the pulp and paper industry: optimizing the production of fuels from black liquor. Abstract Black liquor, a major waste byproduct from the pulp and paper industry, has always not been considered for producing fuels, because of the presence of complex chemicals such as lignin. In contrast to many biopolymers such as carbohydrates and proteins, lignin is resistant to bacterial degradation due to its complicated chemical structure. This resistance allows lignin to survive many traditional waste treatment methods. However, photocatalysis utilizing sunlight and a metal catalyst has been proven to be effective in degrading lignin. The chemicals produced from photocatalysis can be further converted into fuels such as methane. In this research, black liquor will be treated by photocatalysis utilizing ultraviolet light and titanium dioxide (TiO2). TiO2 is a white pigment which is commonly used in air filters, to enhance the white color in paper and in white paint. Preliminary findings of this research have shown that TiO2 photocatalysis is a viable treatment option for converting black liquor into smaller molecules which shows 36% total organic carbon removal from the experiment. In the next phase of the study, a common statistical method will be employed to optimize the photocatalysis process and maximize the amount of small biodegradable chemicals. Those small biodegrade chemicals could be digested and hydrogen would be produced. Overall, this work contributes to improving the sustainability of the pulp and paper industry by providing an option for producing fuels from lignin. Keywords: Black liquor; Lignin; Photocatalysis; Statistical design; Renewable energ
Supplemental Material - Procollagen C-protease enhancer protein is a prognostic factor for glioma and promotes glioma development by regulating multiple tumor-related pathways and immune microenvironment
No full textSupplemental Material for Procollagen C-protease enhancer protein is a prognostic factor for glioma and promotes glioma development by regulating multiple tumor-related pathways and immune microenvironment by Zijun Zhao, Jiahui Zhao, Zairan Wang, Yue Wu, Zhanzhan Zhang, Zihan Song, Jihao Miao, Boheng Liu, Shiyang Zhang, Boyu Sun, and Zongmao Zhao in International Journal of Immunopathology and Pharmacology</p
sj-docx-1-taj-10.1177_20406223221109651 – Supplemental material for Sarcopenia and frailty combined increases the risk of mortality in patients with decompensated cirrhosis
No full textSupplemental material, sj-docx-1-taj-10.1177_20406223221109651 for Sarcopenia and frailty combined increases the risk of mortality in patients with decompensated cirrhosis by Gaoyue Guo, Chaoqun Li, Yangyang Hui, Lihong Mao, Mingyu Sun, Yifan Li, Wanting Yang, Xiaoyu Wang, Zihan Yu, Xiaofei Fan, Kui Jiang and Chao Sun in Therapeutic Advances in Chronic Disease</p
Alignment of Vertically Standing Black Phosphorus Ribbons via Nanoskiving for Enhanced Gas Sensing Applications
No full textThe edge sites of black phosphorus (BP) present promising potential for gas sensing, due to their exceptional adsorption capacity and electronic reactivity. However, achieving high-yield fabrication of fully exposed edge sites remains a challenge. In this study, the nanoskiving technique is utilized to cut the basal plane of BP, producing vertically standing BP ribbons with fully exposed edge sites. By experimentally adjusting the alignment angle between the sample and the diamond cutting tool, and further investigating the cutting mechanism via molecular dynamics simulations, precise BP ribbons are fabricated, enabling tunable structural and electronic properties. This method demonstrates exceptional processing efficiency, achieving high-output fabrication of BP ribbon-based gas sensors. Compared to the basal plane, these sensors exhibite enhanced sensitivity and rapid response times (tau ads = 3.3 s, tau des = 14.1 s), attributed to the synergistic effects of strong adsorption and abundant active sites, as supported by density functional theory (DFT) calculations. Furthermore, a wireless gas sensing system based on BP ribbons is developed to detect ppm-level NO2 in simulated leakage scenarios, highlighting its practical application potential. This work presents a scalable and efficient approach for fabricating BP ribbon-based gas sensors, promoting the exploration of gas sensing applications in this emerging field.
Palaeoclimate Reconstruction of the Central Gangdise Mountains, Southern Tibetan Plateau, Based on Glacier Modelling
No full textPalaeoglacier modelling is an important approach for reconstructing the palaeoclimate. The timing of glaciations in the central part of the Gangdise Mountains has been constrained previously, but the palaeoclimate remains unclear. In this paper, the palaeo-temperature and precipitation of the early marine isotope stage (MIS) 2, the Last Glacial Maximum (LGM), and the early Holocene were reconstructed using coupled mass balance and ice flow models. The results show that a series of temperature changes (ΔT) and precipitation factors (Fp) resulted in optimum palaeoglacial extents. The modelled palaeoglaciers during the early MIS 2, the LGM, and the early Holocene cover areas of ~18.1 km2, ~17.4 km2, and ~16.3 km2, respectively, with ice volumes of ~2.18 km3, ~1.99 km3, and ~1.95 km3, respectively. Previous studies on ice cores, pollen samples, and lake sediments were referenced to narrow the range of palaeo-temperatures and precipitations. The reconstructed temperatures during the early MIS 2, LGM, and early Holocene were constrained to 2.4–2.9 °C, 2.15–3.05 °C, and 0.95–1.5 °C lower than today, respectively. Their precipitation levels were 60–80%, 50–80%, and 100–150% of the present-day level, respectively
Engineering the biological performance of hierarchical nanostructured poly(ε-carpolactone) scaffolds for bone tissue engineering
Get PDFScaffolds play an important role as physical substrates for cell proliferation and differentiation, leading to tissue regeneration. For bone applications, researchers are focusing on cellular or acellular biocompatible biodegradable polymeric scaffolds. However, high biological performance scaffolds are still required to meet actual clinical demands. This paper discusses a novel strategy to engineer the biological performance of polymeric scaffolds through the combined use of additive manufacturing, acetone vapour annealing surface treatment and dopamine grafting, enabling the fabrication of hierarchical nanostructured tissue engineering structures. Produced scaffolds present improved biological behaviour compared to conventional additive manufactured scaffolds, and similar mechanical properties, showing high potential for clinical applications
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