| 1. |
- Kristan, Matej, et al.
(författare)
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The Ninth Visual Object Tracking VOT2021 Challenge Results
- 2021
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Ingår i: 2021 IEEE/CVF INTERNATIONAL CONFERENCE ON COMPUTER VISION WORKSHOPS (ICCVW 2021). - : IEEE COMPUTER SOC. - 9781665401913 ; , s. 2711-2738
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Konferensbidrag (refereegranskat)abstract
- The Visual Object Tracking challenge VOT2021 is the ninth annual tracker benchmarking activity organized by the VOT initiative. Results of 71 trackers are presented; many are state-of-the-art trackers published at major computer vision conferences or in journals in recent years. The VOT2021 challenge was composed of four sub-challenges focusing on different tracking domains: (i) VOT-ST2021 challenge focused on short-term tracking in RGB, (ii) VOT-RT2021 challenge focused on "real-time" short-term tracking in RGB, (iii) VOT-LT2021 focused on long-term tracking, namely coping with target disappearance and reappearance and (iv) VOT-RGBD2021 challenge focused on long-term tracking in RGB and depth imagery. The VOT-ST2021 dataset was refreshed, while VOT-RGBD2021 introduces a training dataset and sequestered dataset for winner identification. The source code for most of the trackers, the datasets, the evaluation kit and the results along with the source code for most trackers are publicly available at the challenge website(1).
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| 2. |
- Liu, Xuan, et al.
(författare)
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Increased southerly and easterly water vapor transport contributed to the dry-to-wet transition of summer precipitation over the Three-River Headwaters in the Tibetan Plateau
- 2023
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Ingår i: Advances in Climate Change Research. - 1674-9278 .- 2524-1761. ; 14:4, s. 502-510
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Tidskriftsartikel (refereegranskat)abstract
- The Three-River Headwaters (TRH) region in the Tibetan Plateau is vulnerable to climate change; changes in summer (June–August) precipitation have a significant impact on water security and sustainability in both local and downstream areas. However, the changes in summer precipitation of different intensities over the TRH region, along with their influencing factors, remain unclear. In this study, we used observational and ERA5 reanalysis data and employed a precipitation categorization and water vapor budget analysis to quantify the categorized precipitation variations and investigate their possible linkages with the water vapor budget. Our results showed an increasing trend in summer precipitation at a rate of 0.9 mm per year (p < 0.1) during 1979–2020, with a significant dry-to-wet transition in 2002. The category ‘very heavy precipitation’ (≥10 mm d−1) contributed 65.1% of the increased summer precipitation, which occurred frequently in the northern TRH region. The dry-to-wet transition was caused by the effects of varied atmospheric circulations in each subregion. Southwesterly water vapor transport through the southern boundary was responsible for the increased net water vapor flux in the western TRH region (158.2%), while southeasterly water vapor transport through the eastern boundary was responsible for the increased net water vapor flux in the central TRH (155.2%) and eastern TRH (229.2%) regions. Therefore, we inferred that the dry-to-wet transition of summer precipitation and the increased ‘very heavy precipitation’ over the TRH was caused by increased easterly and southerly water vapor transport.
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| 3. |
- Wang, Yuqi, et al.
(författare)
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Electrolyte-Mediated Misconception of Carbon-Based Electrode Performance and Beyond in Metal-Ion Batteries
- 2023
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Ingår i: Advanced Energy Materials. - : Wiley-VCH Verlagsgesellschaft. - 1614-6832 .- 1614-6840. ; 13:29
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Tidskriftsartikel (refereegranskat)abstract
- A half-cell that is composed of electrode and metal (e.g., lithium) is the most classical model for examining electrode performance in battery community, by which the voltage versus capacity profile is the important indicator. However, it is found that these results are not all reliable, as a misconception of electrode performance can be caused once the electrolyte is chemically unstable. As a paradigm, it is demonstrated that the diethyl carbonate (DEC) solvent can chemically react with lithium metal to form insoluble and soluble by-products, which can accumulate on the lithium anode to influence the lithium potential and/or migrate to the counter electrode to proceed with the uncompleted electrochemical reactions. The resultant voltage-capacity profile cannot reflect the actual electrode performance, such as the lithium storing capability within the graphite. The reason for this phenomenon is elucidated based on solvation chemistry, particularly the mechanism of mitigating it by introducing ethylene carbonatesolvent to form new hydrogen bonds. The viewpoint is further verified by employing the full cell and also extended in sodium and potassium batteries. This study shows the necessity of discerning the reliability of electrode performance and also sheds light on the importance of designing a compatible electrolyte to examine electrode performance.
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| 4. |
- Yuan, Zhen, et al.
(författare)
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Immunomodulatory effect of ethanol-soluble polypeptides from Atlantic cod (Gadus morhua)
- 2023
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Ingår i: FOOD SCIENCE AND HUMAN WELLNESS. - : Elsevier. - 2213-4530. ; 12:4, s. 1192-1203
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Tidskriftsartikel (refereegranskat)abstract
- There are many active substances in Atlantic cod (Gadus morhua) explaining the variety of biological activities. In order to study the immunomodulatory activity and the mechanism of Atlantic cod peptides at the cellular level. In this study, cod peptides were isolated by 80% ethanol extraction method, the isolated ethanol-soluble cod peptides (CP-ES) were investigated and their immunomodulatory activity was verified. Additionally, CP-ES showed lower molecular weight and more hydrophobic amino acids. CP-ES could promote the proliferation of spleen lymphocytes and T lymphocytes in mice, suggesting that CP-ES may regulate adaptive immunity. It promoted the release of NO and the expression of iNOS, TNF-alpha, IL-6 and IL-1 beta genes in macrophages, suggesting that CP-ES may regulate innate immunity. CP-ES could promote the expression of TLR2 gene, and the peptides identified in CP-ES were docked with TLR2 to predict the peptides playing a major role in CP-ES. These results suggested that CP-ES may regulate the immune activity of both innate and adaptive lines.
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| 5. |
- Zhang, Kang-Ping, et al.
(författare)
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Global Leadership Initiative on Malnutrition criteria as a nutrition assessment tool for patients with cancer
- 2021
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Ingår i: Nutrition. - : Elsevier. - 0899-9007 .- 1873-1244. ; 91-92
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: Since the launch of Global Leadership Initiative on Malnutrition (GLIM), there has been an urgent need to validate the new criteria, especially in patients with cancer. The aim of this study was to evaluate and validate the use of the GLIM criteria in patients with cancer.Method: This multicenter cohort study compared the GLIM with the scored Patient-Generated Subjective Global Assessment (sPG-SGA). The 1-y survival rate, multivariate Cox regression analysis, k-value, sensitivity, specificity, receiver operating characteristic (ROC) curve, and time-dependent ROC analysis were applied to identify the performance of the GLIM.Results: Among the 3777 patients in the study, 50.9% versus 49.1% or 36.3% versus 63.7% of the patients were defined as well-nourished and malnourished by GLIM or sPG-SGA, respectively. GLIM presented moderate consistency (k = 0.54, P < 0.001), fair sensitivity and specificity (70.5 and 88.3%) compared with sPG-SGA. There was no difference in the 1-y survival rate in malnourished patients (76.9 versus 76.4%, P = 0.711), but it was significantly different in well-nourished patients (85.8 versus 90.3%, P < 0.001) between GLIM and sPG-SGA. The above difference was eliminated after omitted nutritional risk screening (NRS)-2002 screening before GLIM (88.1 versus 90.3%, P = 0.078). Omitting NRS-2002 screening before GLIM did not change the 1-y survival rate in well-nourished or malnourished patients by GLIM with NRS-2002 screening (76.9 versus 78.9%, P = 0.099; 85.8% versus 88.1%, P = 0.092) although it significantly raised the rate of malnutrition to 72.5%. The combination of "weight loss and cancer" showed better performance than other combinations.Conclusions: GLIM could be a convenient alternative to sPG-SGA in nutrition assessment for patients with cancer. The combination of "weight loss and cancer" was better than other combinations. Considering the higher risk for malnutrition in patients with cancer, NRS-2002 screening may not be needed before GLIM.
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| 6. |
- Zhao, Cheng-Shou, et al.
(författare)
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Thermal decomposition behaviors of a self-intumescent flame retardant epoxy resin
- 2022
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Ingår i: Journal of Applied Polymer Science. - : John Wiley & Sons. - 0021-8995 .- 1097-4628. ; 139:18
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Tidskriftsartikel (refereegranskat)abstract
- This paper focuses on revealing the thermal decomposition behaviors of a self-intumescent flame retardant (IFR) epoxy (EP) resin (EP/15%APP-Cu2O) employing 12 wt% ammonium polyphosphate (APP) as a halogen-free flame retardant and 3 wt% copper (I) oxide (Cu2O) as char forming rate regulator. Initially, the thermal stability of EP/15%APP-Cu2O was analyzed and compared to virgin EP resin and flame retardant EP (EP/15%APP) containing 15 wt% APP as flame retardant by thermogravimetric analysis test at different heating rates under nitrogen atmosphere. It was shown that the incorporation of APP altered the decomposition pathway of EP and decreased the onset decomposition temperature. Luckily, compared to EP/15%APP, the onset decomposition temperature of EP/15%APP-Cu2O was just slightly reduced from 300.4 to 292.8 degrees C. Then, the thermal degradation kinetics of EP, EP/15%APP and EP/15%APP-Cu2O were further evaluated by Kissinger and Flynn-Wall-Ozawa methods. It was worth noted that the addition of APP or APP-Cu2O enhanced the thermal degradation activation energies of EP, which contributed to the protective effect of the char formation. Particularly, the incorporation of 3 wt% Cu2O significantly decreased the thermal degradation activation energies at the early decomposition stage of EP. This may be the main contribution for intumescent char formation, which resulted in higher fire safety of EP/15%APP-Cu2O compared to EP/15%APP. These information can potentially help to develop alternative IFR systems.
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| 7. |
- Zhu, Dongyang, et al.
(författare)
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The dual-function of bioactive peptides derived from oyster (Crassostrea gigas) proteins hydrolysates
- 2023
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Ingår i: FOOD SCIENCE AND HUMAN WELLNESS. - : KEAI PUBLISHING LTD. - 2213-4530. ; 12:5, s. 1609-1617
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Tidskriftsartikel (refereegranskat)abstract
- Oysters (Crassostrea gigas) have a wide range of functionality due to their nutritional and bioactive components. However, the bioactive peptides of oyster proteins are rarely reported, particularly their anti-diabetes effects and antioxidants. Oyster proteins were extracted from fresh oysters using phosphate-buffered saline and simulated gastrointestinal digestion was performed. The degree of hydrolysis (DH), structural characterization, molecular weight (Mw) distribution, free amino acid, anti-diabetic activity, and antioxidant activity were studied during in vitro simulated gastrointestinal digestion. The results showed that the alpha-glucosidase inhibitory activity, alpha-amylase inhibitory activity, DPPH radical scavenging activity, and ABTS radical scavenging activity of the oyster protein gastrointestinal digest were increased (P < 0.05) from 0 to 33.96%, from 9.17% to 44.22%, from 9.01 mu g trolox/mg protein to 18.48 mu g trolox/mg protein, and from 21.44 mu g trolox/mg protein to 56.21 mu g trolox/mg protein, respectively. Additionally, the DH, beta-turn structure, fluorescence intensity, free amino acid, and short peptide content (Mw < 1 000 Da) increased in the simulated gastrointestinal digestion. These results indicate that the digestive hydrolysates obtained from oyster proteins could be used as natural anti-diabetic and antioxidant agents.
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