The enrichment of phosphate is necessary for high-efficiency nutrient recovery from wastewater through struvite ***,the majority of current nutrient enrichment processes focus on membrane-based technologies driven by ...
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The enrichment of phosphate is necessary for high-efficiency nutrient recovery from wastewater through struvite ***,the majority of current nutrient enrichment processes focus on membrane-based technologies driven by external energy ***,the phosphate enrichment by negatively charged Poly(sodium acrylate)hydrogel beads as the self-driven dewatering agent under different conditions was *** phosphate rejection decreased as its concentration increased but retained 56.9%even in 10 mmol/L PO_(4)^(3−)solution,which is well beyond the phosphate concentration in typical wastewater *** was concentrated 3.6 folds with a recovery of 70%using~1 wt%of hydrogel beads in 0.5 mmol/L phosphate *** effects of the pH,ionic strength of the nutrient stream,and the swelling ratio of hydrogels on the rejection of phosphate were *** addition,the hydrogel beads removed 100%of nickel ions during the dewatering of the phosphate solution(0.5 mmol/L Ni2+and 0.5 mmol/L PO_(4)^(3−)),presenting an opportunity for simultaneous phosphate enrichment and purification during the pretreatment for nutrient recovery from *** study demonstrated that the spontaneous dewatering process utilizing ion-selective hydrogels is promising for nutrient enrichment to promote recovery efficiency.
Energetic compounds bearing the trinitromethyl group are garnering broad attraction as potential candidates for a new generation of high energy dense *** this work,an effective dual modulation strategy involving both ...
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Energetic compounds bearing the trinitromethyl group are garnering broad attraction as potential candidates for a new generation of high energy dense *** this work,an effective dual modulation strategy involving both molecular isomerization and crystal morphology control was employed to design and optimize trinitromethyl-oxadiazole with improved comprehensive *** this dual strategy,3,5-bis(trinitromethyl)-1,2,4-oxadiazole(3)was synthesized,resulting in the formation of two distinct crystal morphologies(needle and sheet)corresponding to two crystal forms(3-a and3-b).Encouragingly,while maintaining ultra-high oxygen balance(21.73%),3 achieves impressive densities(1.97-1.98 g/cm^(3)).To our knowledge,the density of 1.98 g/cm^(3)for 3-a sets a new record among that of nitrogen-rich monocyclic ***,practical crystal morphology prediction was creatively introduced to guide the experimental crystallization conditions of 3,increasing the impact sensitivity and friction sensitivity from 1 J to 80 N(3-a)to 10 J and 240 N(3-b),***,the crystal structural analyses and theoretical calculations were conducted to elucidate the reasons of differences between 3-a and 3-b in density and *** work provides an efficient strategy to enhance performance of trinitromethyl derivatives,broadening the path and expanding the toolbox for energetic materials.
This study investigates the mechanism of action of representative molecules of basalt fibers on the healing of water-soaked *** parameters,morphological characteristics,interfacial healing energy,and interfacial heali...
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This study investigates the mechanism of action of representative molecules of basalt fibers on the healing of water-soaked *** parameters,morphological characteristics,interfacial healing energy,and interfacial healing strength were analyzed using molecular dynamics and macroscopic tests under different time,temperature,and water conditions to evaluate the specific states and critical conditions involved in *** results indicate that basalt-fiber molecules can induce rearrangement and a combination of water-soaked asphalt at the healing *** groups with different bonding states increase the interfacial adsorption capacity of water-soaked *** interaction between basalt fiber molecules and water molecules leads to a"hoop"phenomenon,while aromatics-2 molecules exhibit a"ring band aggregation"*** former reduces the miscibility of water and asphalt molecules,while the latter causes slow diffusion of the ***,a micro-macro dual-scale comparison of interfacial healing strength was conducted at temperatures of 297.15 and 312.15 K to identify the strength transition point and critical temperature of 299.4 K during the self-healing process of basalt-fiber modified water-soaked asphalt.
Lithium-sulfur(Li-S)batteries with high energy density suffer from the soluble lithium polysulfide species,Traditional metal sulfides containing a single metal element used as electrocatalysts for Li-S batteries commo...
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Lithium-sulfur(Li-S)batteries with high energy density suffer from the soluble lithium polysulfide species,Traditional metal sulfides containing a single metal element used as electrocatalysts for Li-S batteries commonly have limited catalytic abilities to improve battery ***,based on the Hume-Rothery rule and solvothermal method,the high-entropy sulfide NiCoCuTiVS_(x)derived from Co_(9)S_(8)was designed and synthesized,to realize the combination of small local strain and excellent catalytic *** all five metal elements(Ni,Co,Cu,Ti,and V)capable of chemical interactions with soluble polysulfides,NiCoCuTiVS_(x)exhibited strong chemical confinement of polysulfides and promoted fast kinetics for polysulfides ***,the S/NiCoCuTiVS_(x)cathode can maintain a high discharge capacity of 968.9 mA h g^(-1)after 200 cycles at 0.5 C and its capacity retention is 1.3 times higher than that of S/Co_(9)S_(8).The improved cycle stability can be attributed to the synergistic effect originating from the multiple metal elements,coupled with the reduced nucleation and activation barriers of Li_(2)*** present work opens a path to explore novel electrocatalyst materials based on high entropy materials for the achievement of advanced Li-S batteries.
Drone swarm systems,equipped with photoelectric imaging and intelligent target perception,are essential for reconnaissance and strike missions in complex and high-risk *** excel in information sharing,anti-jamming cap...
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Drone swarm systems,equipped with photoelectric imaging and intelligent target perception,are essential for reconnaissance and strike missions in complex and high-risk *** excel in information sharing,anti-jamming capabilities,and combat performance,making them critical for future ***,varied perspectives in collaborative combat scenarios pose challenges to object detection,hindering traditional detection algorithms and reducing *** angle-prior data and sparse samples further complicate *** paper presents the Multi-View Collaborative Detection System,which tackles the challenges of multi-view object detection in collaborative combat *** system is designed to enhance multi-view image generation and detection algorithms,thereby improving the accuracy and efficiency of object detection across varying ***,an observation model for three-dimensional targets through line-of-sight angle transformation is constructed,and a multi-view image generation algorithm based on the Pix2Pix network is *** object detection,YOLOX is utilized,and a deep feature extraction network,BA-RepCSPDarknet,is developed to address challenges related to small target scale and feature extraction ***,a feature fusion network NS-PAFPN is developed to mitigate the issue of deep feature map information loss in UAV images.A visual attention module(BAM)is employed to manage appearance differences under varying angles,while a feature mapping module(DFM)prevents fine-grained feature *** advancements lead to the development of BA-YOLOX,a multi-view object detection network model suitable for drone platforms,enhancing accuracy and effectively targeting small objects.
Integrated sensing and communication (ISAC) is a promising technique to increase spectral efficiency and support various emerging applications by sharing the spectrum and hardware between these functionalities. Howeve...
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Integrated sensing and communication (ISAC) is a promising technique to increase spectral efficiency and support various emerging applications by sharing the spectrum and hardware between these functionalities. However, the traditional ISAC schemes are highly dependent on the accurate mathematical model and suffer from the challenges of high complexity and poor performance in practical scenarios. Recently, artificial intelligence (AI) has emerged as a viable technique to address these issues due to its powerful learning capabilities, satisfactory generalization capability, fast inference speed, and high adaptability for dynamic environments, facilitating a system design shift from model-driven to data-driven. Intelligent ISAC, which integrates AI into ISAC, has been a hot topic that has attracted many researchers to investigate. In this paper, we provide a comprehensive overview of intelligent ISAC, including its motivation, typical applications, recent trends, and challenges. In particular, we first introduce the basic principle of ISAC, followed by its key techniques. Then, an overview of AI and a comparison between model-based and AI-based methods for ISAC are provided. Furthermore, the typical applications of AI in ISAC and the recent trends for AI-enabled ISAC are reviewed. Finally, the future research issues and challenges of intelligent ISAC are discussed.
The Internet of Things (IoT), which enables seamless connectivity and effective data exchange between physical items and digital systems, has completely changed the way we interact with our surroundings. This study ev...
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With prolonged exposure in the human body,titanium alloy implants face challenges associated with bacterial attachment and proliferation,leading to implant failure and severe *** therapy(PTT)emerges as an efficient st...
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With prolonged exposure in the human body,titanium alloy implants face challenges associated with bacterial attachment and proliferation,leading to implant failure and severe *** therapy(PTT)emerges as an efficient strategy for biofilm ***,the local high temper-ature of PTT and incomplete bacteria ablation in low-temperature PTT pose risks of damage to normal tissues and biofilm recalcitrance,*** this study,we synergistically combined photothermal therapy and chemotherapy to mildly disrupt biofilms of Staphylococcus aureus(***)to enhance the efficiency of biofilm *** synergistic nanoplatform comprises near-infrared-light responsive con-jugated polymers,heat-sensitive liposomes,and the antibiotic daptomycin for biofilm *** heat generated by conjugated polymers,stimulated with 808 nm light,alters biofilm permeability and releases antibiotics locally to eradicate *** nanoparticles exhibit biofilm dispersion activity and can effectively inhibit biofilm growth for up to 5 ***,this nanoplatform based on con-jugated polymers offers a reliable method for ablating biofilms on titanium alloy implant and exhibits potential in drug-resistant clinical applications.
In this paper, we develop an average-derivative based second-order staggered-grid finite-difference (ADSSFD) scheme for performing 3D frequency-domain elastic wave modeling. The ADSSFD scheme applies the idea of avera...
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Due to the arcing nature, the high-impedance fault (HIF), which typically occurs in medium voltage (MV) distribution networks, poses a risk to equipment, personnel, and livestock. Early fault detection can save lives ...
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