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3rd International Conference on Biomedicine and Bioinformatics engineering, ICBBE 2023

作者： Duan, Wenxin Guo, Yingwei Yang, Yingjian Zeng, Nanrong Wang, Shicong Xu, Jiaxuan Chen, Rongchang Kang, Yan College of Health Science and Environmental Engineering Shenzhen Technology University Shenzhen518118 China School of Applied Technology Shenzhen University Shenzhen518060 China Guangzhou Institute of Respiratory Disease State Key Laboratory of Respiratory Disease National Clinical Research Center for Respiratory Disease National Center for Respiratory Medicine First Affiliated Hospital of Guangzhou Medical University Guangzhou510120 China College of Medicine and Biological Information Engineering Northeastern University Shenyang110169 China

ISBN: (纸本)9781643684321

Chronic obstructive pulmonary disease (COPD) is closely related to the right ventricle and lung lobes. This study focuses on the segmentation of the right ventricle and lung lobes. We conducted experiments using the MMWHS and our lung lobe datasets and evaluated the segmentation using different training models. We observed that the multi-objective segmentation approach has advantages over single-objective segmentation in segmenting the right ventricle and lung lobes. For the segmentation of the right ventricle, the multi-objective segmentation approach yielded an improvement of 2.0% in the Dice coefficient and 2.5% in the Jaccard index compared to single-objective segmentation. For the segmentation of five lung lobes, the multi-objective segmentation outperformed the single-objective segmentation with Dice coefficient improvements of 1.4%, 1.0%, 1.5%, 0.7%, and 1.3%, respectively. © 2023 IOS Press. All rights reserved.

关键词： Medical imaging

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Determination of Optimal Air Change Rate for Cooling the Bedrooms of Residential Buildings in Guangzhou 7

Determination of Optimal Air Change Rate for Cooling the Bed...

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7th International Conference on environmental science and Civil engineering, ESCE 2021

作者： Qin, Cuicui Zhang, Yufeng Zhao, Lihua School of Construction and Environmental Engineering Shenzhen Polytechnic Shenzhen China State Key Laboratory of Subtropical Building Science South China University of Technology Guangzhou China

Ventilation is a traditional strategy for cooling and energy saving in buildings in hot and humid climate. This study aims to develop correlations for calculating the optimal air change rate (ACH) for cooling that can be generally applied to residential buildings in Guangzhou. A bedroom prototype was built based on the typical design features of bedrooms, which were gotten through the investigation of 350 Guangzhou residential quarters. The impacts of three factors and ACH on cooling load were analyzed by simulations. ACH is the most important factor, followed by area ratio of window to wall, area and orientation. An increase from 5 to 10 ACH for 10-21 m2 bedrooms could decrease annual cooling loads by an average of 17%, and prediction models of annual cooling loads were obtained for bedrooms by multiple regression, which were tested to be statistically valid. The predictive correlations of optimal ACH were finally achieved, which could be directly applied to the ventilation design of bedrooms in Guangzhou. The optimal ACH for prototype bedroom ranged from 21.99 to 22.85 h-1 as change rate of ventilation contribution on cooling was 5%, and from 11.99 to 12.85 h-1 as change rate of ventilation contribution on cooling was 10%. © Published under licence by IOP Publishing Ltd.

关键词： Ventilation

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Recycle of Sludge from A Non-Lime Purification of Electrolysis Wastewater: Bridge from Contaminant Removal to Waste-Derived Nox-Scr Catalyst

SSRN

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SSRN 2024年

作者： Gao, Ju Zhou, Jizhi Zhang, Yufeng Liu, Pei Sun, Fucheng School of Environmental Science and Engineering Nanjing Tech University Nanjing211816 China Key Laboratory of Environmental Pollution Control Technology of Zhejiang Province Zhejiang Environmental Science & Design Institute 109 Tianmushan Rd Zhejiang Hangzhou310000 China Shanghai Solid Waste Disposal Co. Ltd 2491 Jiazhugong Rd. Shanghai201807 China

The nitrogen oxides selective catalytic reduction (NOx-SCR) catalyst is often derived from sludge in industrial waste treatment, which shows various SCR efficiency as the complex composition of sludge. In the current work, the SCR catalyst developed by the sludge from Fe/C micro-electrolysis Fenton technology (MEF) in wastewater treatment was investigated, taking into account various sludge compositions, Fe/C ratios and contaminant contents. The result shows that at about 300 ℃, the removal rate of NOx can reach 100%, and with a wide decomposition temperature zone. The effect of individual components of P, Fe and Ni in electroplating sludge on NOx degradation performance was inspected. It is found that the best degradation performance of NOx was achieved when Fe/P was 8 wt%/3 wt%, and the variation of Ni content has limited effect on the degradation performance of NOx. When Fe/C is 1:2 and Fe/C/P is 1:2:0.4, the electroplating sludge formed after treatment with Fe/C MEF provides the best removal rate of NOx at 100%. Moreover, the characterization results show that the activated carbon is also involved in the catalytic reduction degradation of NOx. Excessive Fe content may cause agglomeration on the catalyst surface and thus affect the catalytic efficiency. The addition of P effectively reduces the catalytic reaction temperature, and the formation of phosphate promotes the generation of adsorbed oxygen, which in turn contributes to the improvement of catalytic efficiency. Therefore, our work proposes the efficient effect of composition controlling in sludge on SCR catalysis, which provides the bridge from contaminant bearing waste to efficient catalyst. © 2024, The Authors. All rights reserved.

关键词： Wastewater treatment

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Boosting the Performance of Co-Doped Ceo2 Catalyst in the Catalytic Oxidation of Toluene by Modulating Oxygen Vacancies

SSRN

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SSRN 2023年

作者： Liu, Jie Wang, Hua Zhang, Wanying Gao, Jiawu Yu, Qing Ke, Jun Wang, Lidong Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control Department of Environmental Science and Engineering North China Electric Power University Baoding071003 China MOE Key Laboratory of Resources and Environmental Systems Optimization College of Environmental Science and Engineering North China Electric Power University Beijing102206 China School of Chemistry and Environmental Engineering Wuhan Institute of Technology Wuhan430205 China

Metal doping is one of the most effective strategies to enhance redox capacity and modulate the oxygen vacancies in Ce-based catalysts. This manuscript reports a Co-doped CeO2 catalyst (Co0.2Ce0.8 (W/E=1/1)) for the catalytic oxidation of toluene fabricated by a facile co-precipitation method. The appropriate ratio of deionized (DI) water/ethanol in the reaction solvent contributed to the mesocrystallization of the CeO2 phase and the highly uniform dispersion of the Co‒O‒Ce mixed bond in the catalyst. The feasible lattice distortion induced the generation of richer oxygen vacancies in both the surface and bulk of the catalyst. Meanwhile, the efficient cycle of Co2+ + Ce4+ ↔ Co3+ + Ce3+ enhanced the redox property of the catalyst. As revealed by in situ DRIFTS studies, the as-formed surface oxygen vacancies promoted the adsorption and partial oxidation of toluene. The oxygen vacancies in the bulk of the catalyst improved the migration of lattice oxygen, accelerating the mineralization of the aromatic ring. Thus, the excellent low-temperature oxidation of toluene by Co0.2Ce0.8 (W/E=1/1), reducing T90 to 192 °C, was attributed to the synergism between the catalyst’s surface and bulk oxygen vacancies. © 2023, The Authors. All rights reserved.

关键词： Toluene

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High-efficiency combination washing agents with eco-friendliness simultaneously removing Cd, Cu and Ni from soil of e-waste recycling site: A lab-scale experiment

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Chemosphere 2024年 357卷 142047页

作者： Xu, Lei Dai, Huiping Wei, Shuhe Skuza, Lidia Shi, Jiachun School of Environmental and Municipal Engineering Qingdao University of Technology Qingdao266520 China College of Biological Science & Engineering Shaanxi Province Key Laboratory of Bio-Resources Qinling-Bashan Mountains Bioresources Comprehensive Development C.I.C State Key Laboratory of Biological Resources and Ecological Environment Jointly Built by Qinba Province and Ministry Shaanxi University of Technology Hanzhong723001 China Key Laboratory of Pollution Ecology and Environment Engineering Institute of Applied Ecology Chinese Academy of Sciences Shenyang110016 China Institute of Biology Centre for Molecular Biology and Biotechnology University of Szczecin Szczecin71-415 Poland Institute of Soil and Water Resources and Environmental Science College of Environmental and Resource Sciences Zhejiang University Hangzhou310058 China

Soil washing technology plays an important role in the removal of heavy metals, and the efficacy of this process depends on the washing agent used. Due to the difficulty in treating soils contaminated by multiple heavy metals, there is still a need for further exploration of efficient washing agents with low environmental impact. Although single washing agents, such as chelators, can also effectively remove heavy metals from soil, combining efficient washing agents and determining their optimal washing conditions can effectively improve their removal efficiency for multiple heavy metals in soil simultaneously. Based on the previous research, the present study was carried out to combine different types of washing agents to remediate contaminated soils at a commonly e-waste recycling site. The objectives were to investigate their efficient washing conditions and assess the impact of the washing process on the speciation distribution and pollution level associated with heavy metals in soil. The results showed that the combination of HEDP (1-hydroxyethylidene-1,1-diphosphonic acid) and FeCl3 at a ratio of 6:4 exhibited the most effective removal of Cd, Cu and Ni from the contaminated soil at an e-waste recycling site. Under optimal washing conditions, with a soil-to-liquid ratio of 1:20 and a washing time of 48 h, the removal rates of Cd, Cu and Ni were 96.72%, 69.91% and 76.08%, respectively. It needed to be emphasized that the combination washing agents were able to remove most of the acid-soluble, reducible and oxidizable fractions of heavy metals, and even the removal rates of the stable residual fraction (e.g., of Cd) was at a relatively high level. In addition, the washing process significantly reduced the pollution level associated with heavy metals in soil. This study aid in the development of combined efficient washing agents and explores optimal washing strategies for the remediation of Cd, Cu, and Ni-contaminated soil at e-waste recycling sites. The findings

关键词： Soils

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Recent developments and trends of automatic nucleic acid detection systems

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Journal of Biosafety and Biosecurity 2022年第1期4卷 54-58页

作者： Xujun Yuan Guodong Sui Dawei Zhang Min Chen Wang Zhao Shanghai Environmental Biosafety Instruments and Equipment Engineering Technology Research Center University of Shanghai for Science and Technology516 Jungong RoadShanghai 200093PR China Shanghai Cohere Electronic Technology Company No.10 Building2888 Shengang RoadShanghai 201101PR China Shanghai Key Laboratory of Atmospheric Particle Pollution Prevention(LAP3) Department of Environmental Science&EngineeringFudan University2005 Songhu RoadShanghai 200438PR China Engineering Research Center of Optical Instrument and System the Ministry of EducationShanghai Key Laboratory of Modern Optical SystemUniversity of Shanghai for Science and Technology516 Jungong RoadShanghai 200093PR China Shanghai Municipal Center for Disease Control&Prevention 1380 West Zhongshan RoadShanghai 200336PR China

Nucleic acid detection,widely used in clinical diagnosis,biological analysis,and environmental monitoring,is of great significance for disease diagnosis and basic *** the outbreak of COVID-19,the demand for fast and high-throughput nucleic acid detection from large numbers of samples has increased *** nucleic acid detection systems can meet these needs,and also play important roles in disease screening and infectious disease prevention and *** this review,we introduce and compare the current mainstream nucleic acid automatic detection instruments and equipment,then discuss the future demands of nucleic acid detection.

关键词： Nucleic acid detection Automatic systems

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The associations between high-levels of urine benzophenone-type UV filters (BPs) and changes in serum lipid concentrations

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Chemosphere 2024年 346卷 140545页

作者： Chen, Qi Chen, Qianyu Su, Guanyong Chen, Da Ding, Zhen Sun, Hong Jiangsu Provincial Center for Disease Control and Prevention Nanjing China School of Public Health Nanjing Medical University Nanjing China Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse School of Environmental and Biological Engineering Nanjing University of Science and Technology Nanjing China School of Environment and Guangdong Key Laboratory of Environmental Pollution and Health Jinan University Guangzhou China

Little is known about the potential health impacts of benzophenone-type UV filters (BPs) exposure among the general population. In our study conducted in Wuxi, China, we investigated the associations between the concentrations of eight BP-derivatives and five target lipid molecules. We collected basic information, serum, and urine samples from 120 residents aged 9 to 80 in Wuxi. We determined BPs in urine samples and lipid levels in serum samples. Generalized linear models were used to evaluate the differences in ln-transformed serum target lipids levels (μg/L) with different urine BPs quartiles compared to the lowest quartile. Benzophenone-4 (BP-4) had the highest detection rate (95.0%) and geometric mean concentration (1.96 μg/L) among all the BP-derivatives in our study population. The exposure levels of BPs were generally higher in females than in males. Participants in the 9–17 and 18–50 age groups exhibited greater levels of exposure to BPs than those in the 51–80 age group. We observed statistically significant changes in LysoPC (18:0), LysoPE (18:0), ΣLPL, and ΣTL concentrations between the highest and lowest quartiles of BP-4. Similar changes were found in LysoPE (18:0) concentration between the highest and lowest quartiles of ΣBP-3 and ΣBPs. High urine BP concentrations were associated with variations in our target serum lipids involved in neurological and metabolic disorders, and posed a potential health risk. Future studies are warranted to further validate and elucidate our findings. © 2023 Elsevier Ltd

关键词： Lipids

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Development of a Novel (Eu(Iii) Post-Functionalized Zirconium-Based Metal-Organic Framework) Dual-Emission Ratiometric Fluorescent Probe for Rapid and Highly Selective Detection of Pb2+

SSRN

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SSRN 2024年

作者： He, Yu Liu, Suqing Zhou, Yan Wang, Junping School of Public Health The key Laboratory of Environmental Pollution Monitoring and Disease Control Ministry of Education Guizhou Medical University Guiyang550025 China State Key Laboratory of Food Nutrition and Safety College of Food Science and Engineering Tianjin University of Science & Technology 29 The Thirteenth Road Tianjin Economy and Technology Development Area Tianjin300457 China

Developing a new probes that can quickly and sensitively detect lead, a heavy metal, in order to safeguard public health and safety. Using a one-pot technique, a metal-organic framework (MOF) doped with Eu3+ (Eu/UiO-66-NH2) was successfully created. The probe demonstrated excellent interference resistance for Pb2+ and performed well in real-life tests. Importantly, the fluorescence effect of Pb2+ with different concentrations after incubation with the probe can be observed under 365 nm UV excitation light, using Eu/UiO-66-NH2 allows for the direct visual identification of Pb2+ with the naked eye. The results showed that the linear range was 5-340 μM, and the detection limit was 1.01 μM. In addition, the ratiometric fluorescent probe was further applied to actual samples(tea and cosmetic), and it was found that the recovery rate was between 92.49% and 109.36%, and the relative standard deviation was below 2.01%. This work offers a practical and efficient approach for quick, accurate detection of heavy metal ions in real-world applications. © 2024, The Authors. All rights reserved.

关键词： Probes

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Nucleophilic hydrolysis of dichloroacetonitrile and trichloroacetonitrile disinfection byproducts by peroxymonosulfate: Kinetics and mechanisms

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Chemosphere 2024年 363卷 142875页

作者： Yu, Yangyi Li, Juan Zhou, Junhui Cao, Ying Guo, Qin Liu, Yongze Yang, Yi Jiang, Jin Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education School of Ecology Environment and Resources Guangdong University of Technology Guangzhou510006 China Advanced Interdisciplinary Institute of Environment and Ecology Guangdong Provincial Key Laboratory of Wastewater Information Analysis and Early Warning Beijing Normal University Zhuhai519087 China Beijing Key Lab for Sources Control Technology of Water Pollution Engineering Research Center for Water Pollution Source Control & Eco-remediation College of Environmental Science and Engineering Beijing Forestry University Beijing100083 China University of Science and Technology of China Anhui 230026 China

In this work, it was found that peroxymonosulfate (PMS) could appreciably accelerate the transformation rates of dichloroacetonitrile (DCAN) and trichloracetonitrile (TCAN) in aqueous solutions, especially under alkaline pHs. The impact of reactive oxygen species scavengers (methyl alcohol for sulfate radical, tert-butyl alcohol for hydroxyl radical, and azide for singlet oxygen) and water matrices (chloride (Cl−), bicarbonate (HCO3−), and natural organic matter (NOM)) on DCAN and TCAN transformation by PMS is evaluated, revealing negligible effects. A nucleophilic hydrolysis pathway, as opposed to an oxidation process, was proposed for the transformation of DCAN and TCAN by PMS, supported by the hydrolyzable characteristics of these compounds and validated through density functional theory calculations. Kinetic analysis indicated that the transformation of DCAN and TCAN by PMS adhered to a second-order kinetic law, with higher reaction rates observed at elevated pH levels within the range of 7.0–10.0. Kinetic modeling incorporating the hydrolytic contributions of water, hydroxyl ion, and protonated and deprotonated PMS (i.e., HSO5− and SO52−) effectively fitted the experimental data. Species-specific second-order rate constants reveal that SO52− exhibited significantly higher reactivity towards DCAN ((1.69 ± 0.22) × 104 M−1h−1) and TCAN ((6.06 ± 0.18) × 104 M−1h−1) compared to HSO5− ((2.14 ± 0.12) × 102 M−1h−1) for DCAN;and (1.378 ± 0.11) × 103 M−1h−1 for TCAN). Comparative analysis of DCAN and TCAN transformation efficiencies by four different oxidants indicated that PMS rivaled chlorine but falls short of hydrogen peroxide, with peroxydisulfate displaying negligible reactivity. Overall, this study uncovers the nucleophilic hydrolysis characteristics of PMS, supplementing its recognized role as an oxidant precursor or mild oxidant, and underscores its significant implications for environmental remediation. © 2024 Elsevier Ltd

关键词： Sulfur compounds

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Comment on"Mechanistic Understanding of Superoxide Radical-Mediated Degradation of Perfluorocarboxylic Acids"

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environmental science & technology 2022年第8期56卷 5287-5288页

作者： Metz, Jordin Javed, Hassan Mathieu, Jacques Long, Mingce Alvarez, Pedro J. J. Department of Chemistry Rice University Houston Texas 77005 United States. Nanosystems Engineering Research Center for Nanotechnology Enabled Water Treatment (NEWT) Rice University Houston Texas 77005 United States. GSI Environmental Inc. Houston Texas 77098 United States. Department of Civil and Environmental Engineering Rice University Houston Texas 77005 United States. Sentinel Environmental LLC Houston Texas 77082 United States. School of Environmental Science and Engineering Key Laboratory of Thin Film and Microfabrication Technology (Ministry of Education) Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China. Department of Materials Science and Nanoengineering Rice University Houston Texas 77005 United States. Department of Chemical and Biomolecular Engineering Rice University Houston Texas 77005 United States.

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