Article
Construction & Building Technology
Pengfei Ma, Yi Zhang, Kefei Li, Quanwang Li, Junjie Wang, Le Li, Ze Yuan
Summary: An intelligent database design method proposed in the study combines site-specific and generic databases intelligently, effectively capturing correlation patterns in site-specific data and making meaningful predictions even when data is scarce.
CEMENT AND CONCRETE RESEARCH
(2023)
Article
Food Science & Technology
Dini Hu, John P. Giesy, Min Guo, Wai Kin Ung, Yijun Kong, Kai Meng Mok, Simon Ming-Yuen Lee
Summary: The compositions of microbial communities associated with blooms of algae in a storage reservoir in Macau were investigated. The study identified the dominant bacteria and virus types, as well as patterns of changes in bacterial numbers within the microbial community. Furthermore, the study elucidated how various water-related variables influenced the bacterial and viral communities, and the relationship between bacterial numbers and trophic status in the reservoir used for drinking water.
Article
Environmental Sciences
Wenqing Chen, Xiajie Wang, Shimin Yang
Summary: This study analyzed high-frequency data on phytoplankton and environmental factors in Jiaozhou Bay and found that the abundance of phytoplankton exhibited a two-peak pattern of annual variation in recent years, with a decrease in species diversity. The increase in water temperature and intensification of eutrophication led to a more single dominant species, resulting in decreased community diversity and stability. Temperature was identified as the main driving factor influencing phytoplankton community structure, particularly during peak periods. Nitrogen and phosphorus were also important factors influencing species composition and competitive advantage.
MARINE POLLUTION BULLETIN
(2023)
Article
Environmental Sciences
Peixuan Wang, Edward Laws, Yongzhi Wang, Jixin Chen, Xue Song, Ruiping Huang, Tifeng Wang, Xiangqi Yi, Jiazhen Sun, Xianghui Guo, Xin Liu, Kunshan Gao, Bangqin Huang
Summary: The increase in atmospheric pCO(2) has caused problems for marine ecosystems. Elevated pCO(2) may enhance dominance by small diatoms and change the community structure of coastal ecosystems.
MARINE POLLUTION BULLETIN
(2022)
Article
Environmental Sciences
Jingjing Zhang, Yibin Wang, Daniel Ottmann, Peng Cao, Jisong Yang, Junbao Yu, Zhenbo Lv
Summary: This five-year study around a nuclear power plant in the western Yellow Sea investigated the effects of thermal effluents on phytoplankton community. The results showed that increased seawater temperature from thermal effluents had no significant effect on phytoplankton composition in autumn through spring, but significantly stimulated phytoplankton growth and altered composition in summer, with an increase in the proportion of diatoms and a decrease in the proportion of dinoflagellates.
ENVIRONMENTAL POLLUTION
(2023)
Review
Mathematics, Interdisciplinary Applications
Zhi-bin Liu, Shu-tang Liu, Da-dong Tian, Da Wang
Summary: This study investigated a spatial plankton community with advection and found that differences in advection velocities can lead to system instability, resulting in wave instability and traveling patterns. Numerical simulations validated the analysis and revealed more phenomena. The analysis and simulation experiments enriched the dynamics of plankton models and contributed to a better understanding of planktonic ecosystems in the real environment.
CHAOS SOLITONS & FRACTALS
(2021)
Article
Environmental Sciences
Daniela Klisarova, Dimitar Gerdzhikov, Nina Nikolova, Martin Gera, Petya Veleva
Summary: During the period 1992-2019, the study found that the rising surface temperature had a significant impact on the abundance and biomass of different size and taxonomic groups of phytoplankton in Varna Bay. The decreasing levels of nutrients also played a role in the changes observed. Overall, temperature showed a leading role in the changes in phytoplankton structure during the study period.
Article
Biodiversity Conservation
Yutao Wang, Zhongya Fan, Wencai Wang, Zhongze Zhou, Xiaoxin Ye
Summary: Flood events have a significant impact on the phytoplankton community structure in aquatic ecosystems. The Huayanghe Lakes experienced extreme flooding in 2020, leading to rapid changes in water quality and phytoplankton diversity. Flooding increased the diversity and richness indices of phytoplankton.
Article
Environmental Sciences
James N. Hitchcock
Summary: This study aimed to investigate the influence of different concentrations of microplastic fibers on phytoplankton community structure. Through two six-day experiments, it was found that high concentrations of microplastics significantly altered the structure of the phytoplankton community, increasing the abundance of certain cyanobacteria taxa while reducing the abundance of other taxa.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Haifa Madyouni, Viviana Almanza, Sihem Benabdallah, Celia Joaquim-Justo, Mohamed Salah Romdhane, Hamadi Habaieb, Jean-Francois Deliege
Summary: This study evaluates the environmental parameters, phytoplankton community structure, and trophic status of the Joumine reservoir in North Tunisia using multivariate statistical methods and redundancy analysis (RDA) with the Trophic State Index (TSI) and Trophic State Index deviation (TSID). The findings indicate that the reservoir is eutrophic, and water nutrient variations are primarily due to contamination from point and non-point sources, as well as natural processes. The outcomes of this study can provide valuable information for the management of the Joumine reservoir.
Article
Biodiversity Conservation
Wenqian Zhao, Zhenzhong Liu, Wenli Guo, Zhongze Zhou
Summary: The study demonstrates that removing aquaculture purse seine contributes to the restoration of aquatic vegetation and improvement in water quality, leading to the decrease in eutrophication. It also enhances the ecological stability of the aquatic ecosystem.
Article
Engineering, Environmental
M. D. K. Lakmali Gunathilaka, Siyi Bao, Xiaoxuan Liu, Ya Li, Ying Pan
Summary: Antibiotic pollution in aquatic ecosystems has adverse effects on planktonic organisms, but research on community-level responses is lacking. This review provides an overview of antibiotic pollution worldwide and summarizes recent studies on the responses of planktonic communities. The studies suggest that environmentally relevant concentrations of antibiotics can affect the characteristics and interactions of planktonic organisms, potentially altering the entire ecosystem. The review emphasizes the importance of community analysis and calls for establishing causal relationships between impacts at different scales.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Plant Sciences
Xingzhou Wang, Jun Sun, Yuqiu Wei, Xi Wu
Summary: The sinking rate of phytoplankton in the eastern Indian Ocean is influenced by factors such as phytoplankton community composition, depth, and temperature. The strong stratification in the Bay of Bengal leads to lower phytoplankton diversity and higher sinking rate, while the deep-layered phytoplankton consists of senescent cells with a higher sinking rate.
Article
Environmental Sciences
Tebatso M. Moloto, Sandy J. Thomalla, Marie E. Smith, Bettina Martin, Deon C. Louw, Rolf Koppelmann
Summary: In this study, a multispectral remote sensing approach is used to detect dominant phytoplankton groups in the northern Benguela upwelling system. This ocean colour remote sensing algorithm has the potential to map the phenology of phytoplankton groups on unprecedented spatial and temporal scales, advancing our understanding of ecosystems and environmental monitoring.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Biodiversity Conservation
Donghui Gong, Ziqing Guo, Wenxue Wei, Jie Bi, Zhizhong Wang, Xiang Ji
Summary: This study investigated the characteristics of phytoplankton community structure in Nanhai Lake in Baotou City and its relationship with environmental factors. The results identified seven phyla of phytoplankton and analyzed their functional groups. The study provided insights into the ecological state and nutritional condition of Nanhai Lake, as well as the main environmental factors affecting phytoplankton biomass.
Article
Chemistry, Multidisciplinary
Fengan Han, Yanting Liu, Guangyi Li, Lin Yuan, Aiqin Wang, Feng Wang, Tao Zhang, Ning Li
Summary: Zinc molybdate with a disordered layered stacking structure was prepared using an evaporation method and demonstrated excellent catalytic performance for selectively converting lignocellulose-derived ketones to olefins. The outstanding catalytic performance was attributed to its porous structure, higher oxygen vacancy concentration, and higher acidity. Additionally, it also exhibited good catalytic performances for other lignocellulose-derived ketones.
Article
Chemistry, Physical
Mengling Dong, Tao Li, Jiacheng Xu, Tiantian Zhang, Yan Sun, Ning Li, Zuliang Wu, Jing Li, Erhao Gao, Jiali Zhu, Shuiliang Yao, Yong Huang
Summary: A plasma reactor coupled with a catalyst was used for the efficient oxidation of methane. By increasing the amount of lattice oxygen on zirconia and enhancing the oxidation of Pd0 to PdO, the activity of the catalyst was significantly improved, achieving efficient methane oxidation at a lower temperature.
MOLECULAR CATALYSIS
(2023)
Article
Chemistry, Physical
Weizhuo Xu, Bingjie Zhou, Qing Wang, Guohao Xu, Ning Li, Wei Liu, Z. Conrad Zhang
Summary: This study investigates the oxidation of biomass in the anode electrolyte solution for energy-efficient hydrogen production. Polyoxometalate (POM) serves as both a catalyst for biomass oxidation and a charge carrier for regeneration, promoting hydrogenation at the cathode. Transition metal salts (CuCl2, CrCl3, and FeCl3) are studied as synergistic catalysts with POM to enhance the degradation of raw biomass. FeCl3 shows the most significant effect in promoting cellulose hydrolysis and maintaining the high oxidation ability of the solution. Consequently, the faraday efficiency of hydrogen production at the cathode reaches 90%.
Article
Chemistry, Physical
Jian-Rong Dai, M. S. Jiang-Tao Sha, Min-Hua Zong, Ning Li
Summary: In this work, the horseradish peroxidase (HRP)-catalyzed aerobic oxidation of reduced nicotinamide cofactors (NADH) was reported. The oxidation was achieved at neutral and alkaline pH by using external amino acids (AAs). The presence of AAs promoted the formation of compound III and its decay back to the ground state. This method offers an alternative way to recycle NAD(P)(+) and has potential for HRP-catalyzed aerobic oxidations.
Article
Chemistry, Physical
Tao Li, Mengling Dong, Jiacheng Xu, Tiantian Zhang, Yan Sun, Ning Li, Zuliang Wu, Jing Li, Erhao Gao, Jiali Zhu, Shuiliang Yao, Yong Huang
Summary: CeO2/gamma-Al2O3, Pd/CeO2, and Pd/CeO2/gamma-Al2O3 were used for catalyzing low-concentration CH4 oxidation. It was found that nano-sized Pd could significantly enhance CH4 oxidation on CeO2/gamma-Al2O3, due to the interaction between Pd and CeO2 on gamma-Al2O3, which resulted in the formation of more oxygen vacancies and surface reactive oxygen species. Furthermore, gamma-Al2O3 facilitated the formation of bicarbonate, which promoted the gasification of bicarbonate to CO2 and enhanced CH4 oxidation.
Article
Environmental Sciences
Xiaojuan Chen, Jieming Chen, Ning Li, Jiesen Li, Juhua He, Song Xu, Yanping Zhu, Liang Yao, Yiqi Lai, Runliang Zhu
Summary: In this study, a novel Z-Scheme La2Ti2O7/Ag3PO4 heterostructure composite was constructed, which showed strong responsive to most of the spectra in natural sunlight. The composite exhibited efficient degradation of various organic pollutants and had good cycling stability due to the presence of Ag-0 as the recombination center of photogenerated carriers.
ENVIRONMENTAL POLLUTION
(2023)
Article
Materials Science, Multidisciplinary
Qian Yi, Yi Feng, Dongyang Liu, Yuan He, Ning Li, Longlong Chen, Lili Miao, Chujun Zhao
Summary: In this research, zirconium triselenide (ZrSe3) nanoflakes were found to exhibit robust broadband nonlinear optical absorption in the near-infrared and mid-infrared regime. These nanoflakes were successfully prepared through liquid phase exfoliation method. The experimental results suggest that ZrSe3 nanoflakes can act as an excellent nonlinear optical modulator towards the mid-infrared regime and may contribute to the development of high-performance broadband optoelectronic devices.
OPTICAL MATERIALS EXPRESS
(2023)
Article
Chemistry, Multidisciplinary
Yongbiao Guo, Ning Li, Junchen Li, Xiaojing Bi, Zhenhua Gao, Ya-Nan Duan, Junhua Xiao
Summary: The authors reported a catalytic reaction of imines with diarylphosphine oxides, catalyzed by chiral phosphoric acids, to achieve asymmetric phosphinylation of 3,4-dihydroisoquinolines at the C1 position. This reaction allows for the efficient construction of a diverse range of chiral alpha-amino diarylphosphine oxides with various functional groups. The phosphine products can be transformed into chiral (thio)ureas, which have potential applications as chiral ligands or catalysts in asymmetric catalysis.
COMMUNICATIONS CHEMISTRY
(2023)
Article
Plant Sciences
Yanqiu Yang, Tingyu Hao, Xiaohu Yao, Yue Che, Yueyang Liu, Mingxia Fang, Yingjie Wang, Di Zhou, Huifang Chai, Ning Li, Yue Hou
Summary: Crebanine demonstrates neuroprotective effects in ischemic stroke by reducing brain damage and inhibiting oxidative stress and neuroinflammation.
Article
Polymer Science
Dudu Li, Ning Li, Wenbin Liu, Shanshan Xu, Yuxiu Sun, Zhihua Qiao, Chongli Zhong
Summary: The MOF-74 family is unstable in humid environments due to the relatively weak coordination bond between metal ions and oxygen atoms, which limits its practical application. Therefore, improving the water vapor/water stability of MOF-74 is crucial for its use in practical applications. In this study, we propose a strategy involving the incorporation of polyvinylamineacid (PCH) into the structure of MOF-74 to enhance water stability. The experimental results show that the successful incorporation of PCH into MOF improves its water vapor/water stability and has the potential to enhance the structural stability of other MOF materials with metal sites.
Article
Construction & Building Technology
Bao Li, Ning Li, Xin Yu, Jianguang Xie, He Zhan, Jian Ding, Hui Ma
Summary: The aging performance and durability of foamed warm mix asphalt (FWMA) have not been fully studied. This study examined and evaluated the performance variation of FWMA compared to conventional hot mix asphalt (HMA) under long-term service conditions. The results showed that the aging resistance of FWMA was slightly diminished under construction conditions with no temperature reduction, but improved at high temperatures and deteriorated at low temperatures with increased service time. The foaming water and service time were primary determinants of the aging and rheological properties of FWMA.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2023)
Article
Engineering, Aerospace
Li Ning, Yue Chengfei, Guo Haibo, Qiu Shi, Cao Xibin
Summary: A distributed domain control strategy was proposed to address the issues of poor system connectivity and high dependence on ground resources in large-scale satellite constellations. It involved hierarchical management, intradomain autonomy, and dynamic maintenance. The strategy included defining static and dynamic indexes to measure governability, proposing a weighted cluster head selection method, establishing a cascading optimal initialization algorithm, and introducing an event-triggered dynamic time slice domain control method. The control simulation results verified the effectiveness of the proposed method in reducing the number of satellites managed through ground stations to 11% and resolving the issue of high dependence on ground resources.
CHINESE SPACE SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Guangzhi Ren, Guangyi Li, Aiqin Wang, Yu Cong, Ning Li
Summary: A new two-step process for the synthesis of jet fuel range high-density bicycloalkanes using creosol and formaldehyde was developed. The first step involved the phenolic condensation of creosol and formaldehyde to obtain C-17 oxygenate, with the catalyst 40% HPW/SiO2 exhibiting the highest activity. In the second step, the C-17 oxygenate was hydrodeoxygenated to produce C-14 and C-15 bicycloalkanes over Ru-based bifunctional catalysts, resulting in a high total yield of 89%.
SUSTAINABLE ENERGY & FUELS
(2023)
Article
Chemistry, Multidisciplinary
Ning Li, Lei Zhang, Jingang Wang
Summary: This study investigated the chiral optical properties of all-benzene catenane and trefoil knot structures regulated by van der Waals (vdW) forces. The results showed that molecular electrical polarization can modulate the chiral optical deflection of alkane oligomers under the induction of vdW forces. The study provides insights into the design of polymers with specific chirality by modifying the structure to generate vdW interactions in specific regions for precise regulation of molecule chirality.
Article
Computer Science, Information Systems
Fengrong Han, Izzeldin Ibrahim Mohamed Abdelaziz, Kamarul Hawari Ghazali, Yue Zhao, Ning Li
Summary: In this study, an optimized DV-Hop localization algorithm is proposed, considering several anisotropic factors. The hop size error of anchors is reduced by introducing distance gap, and the weighted least square method is used to counteract the anisotropic factors caused by irregular radio patterns. Furthermore, an Autonomous Groups Particles Swarm Optimization (AGPSO) is employed to further optimize the obtained coordinate in the first round. The simulation results demonstrate good localization accuracy and strong stability under anisotropic networks, and suggest that metaheuristic optimization algorithm and weighted least square method are more suitable to overcome anisotropic factors.
