A novel PVA/EG/GE/LiCl(PEGL)multifunctional hydrogel was developed by using a binary of ethylene glycol(EG)/water as solvent,with gelatin(GE)and PVA as the skeletons and lithium chloride(LiCl)for conductivity.The expe...A novel PVA/EG/GE/LiCl(PEGL)multifunctional hydrogel was developed by using a binary of ethylene glycol(EG)/water as solvent,with gelatin(GE)and PVA as the skeletons and lithium chloride(LiCl)for conductivity.The experimental results indicate that,compared to four other hydrogels,the PEGL hydrogel exhibits the best tensile strength(3.92±0.12 MPa),a good elongation at break(375.22±11.25%),and excellent anti-freezing properties,being able to withstand approximately 6500 times its own weight without breaking.Moreover,the PEGL organic hydrogel sensor has high sensitivity and rapid response characteristics,capable of transforming body movements into repeatable and stable electrical signals.This study provides new ideas for the development of new types of high-performance wearable flexible strain sensors.展开更多
Oleic acid is a commonly used fatty acid collector in fluorite flotation,known for its effective collecting performance and cost-effectiveness,but with a limited selectivity.In this study,a novel collector,α-sulfonat...Oleic acid is a commonly used fatty acid collector in fluorite flotation,known for its effective collecting performance and cost-effectiveness,but with a limited selectivity.In this study,a novel collector,α-sulfonate group mixed acid(α-SMA),is introduced.The flotation test results demonstrate that the α-SMA collector provides significantly better selectivity in fluorite flotation.Specifically,the α-SMA collector exhibits a similar collecting ability to oleic acid for fluorite;however,its capacity to collect calcite is substantially lower.Zeta potential tests indicate that,under identical dosage conditions,α-SMA adsorbs in greater quantities on fluorite than on calcite.As a result,fluorite exhibits substantially higher flotation recoveries versus calcite with α-SMA collector.X-ray photoelectron spectroscopic analysis suggests that α-SMA facilitates a higher electron donation to Ca2+ions on fluorite compared to calcite surface,forming stronger chemical bonds with fluorite surface.This enhanced interaction leads to stronger adsorption of α-SMA on fluorite.Furthermore,when α-SMA adsorbs solely through its sulfonic group,its carbon chain is positioned almost parallel to calcite surface.This configuration significantly reduces the hydrophobicity of the calcite surface,leading to very low calcite recovery rates with α-SMA collector.展开更多
With the rapid advancement of generative artificial intelligence(AI)and large language model(LLM)technologies,AI agents are gradually becoming the core service units in networks,and their communication mode is evolvin...With the rapid advancement of generative artificial intelligence(AI)and large language model(LLM)technologies,AI agents are gradually becoming the core service units in networks,and their communication mode is evolving from local collaboration to wide-area interconnection.The construction of the Internet of Agents(IoA)faces multiple challenges,such as identity management,dynamic networking,and semantic routing,which urgently requires the design of a network protocol system that adapts to its new traffic characteristics and collaboration needs.Based on the application scenarios of agent communication,this paper systematically analyzes the management,control,and routing requirements that multi-agent collaboration imposes on IP networks,proposes a three-layer functional architecture for the IoA,and designs a protocol suite covering management,control,and routing around key issues such as agent registration and identification,service discovery,capability sensing,and cross-domain traffic assurance.By extending existing Internet protocols and introducing a semantically aware routing mechanism,this paper provides a scalable,efficient,and secure approach to implementing a protocol for end-to-end agent collaboration,thereby contributing to the construction of an open,large-scale agent collaboration ecosystem.展开更多
Dynamic thermal mechanical analysis was used to evaluate the viscoelasticity of asphalt.The parameters included the energy storage modulus(E),the loss modulus(E'),and the loss tangent(tanδ).The impact of three ki...Dynamic thermal mechanical analysis was used to evaluate the viscoelasticity of asphalt.The parameters included the energy storage modulus(E),the loss modulus(E'),and the loss tangent(tanδ).The impact of three kinds of particles containing CaCO3with different size and structure on the mechanical properties was also measured.The addition of limestone increases the glass transition temperature,while nanoCaCO3@SiO2decreases the glass transition temperature.Nano-CaCO3has a negligible effect on the glass transition temperature.The particle size of the limestone is 0.075 mm,which is a material at the micrometer level.During the heating process,it hinders the molecular movement and makes the material harder.Thus the glass transition temperature is relatively high.展开更多
基金the Special Funds for Key Projects of Basic Scientific Research Business Expenses in Undergraduate Universities of Liaoning Province(No.LJ212410153005)。
摘要A novel PVA/EG/GE/LiCl(PEGL)multifunctional hydrogel was developed by using a binary of ethylene glycol(EG)/water as solvent,with gelatin(GE)and PVA as the skeletons and lithium chloride(LiCl)for conductivity.The experimental results indicate that,compared to four other hydrogels,the PEGL hydrogel exhibits the best tensile strength(3.92±0.12 MPa),a good elongation at break(375.22±11.25%),and excellent anti-freezing properties,being able to withstand approximately 6500 times its own weight without breaking.Moreover,the PEGL organic hydrogel sensor has high sensitivity and rapid response characteristics,capable of transforming body movements into repeatable and stable electrical signals.This study provides new ideas for the development of new types of high-performance wearable flexible strain sensors.
基金Projects(2024YFC2909600,2022YFC2904702)supported by the National Key R&D Program of ChinaProject(2025JJ60314)supported by the Youth Program of the Natural Science Foundation of Hunan Province,China+3 种基金Project(52204300)supported by the National Natural Science Foundation of ChinaProject(2023NRE-LH-20)supported by the Joint Innovation Fund Project of China Uranium Corporation Ltd.the National Key Laboratory of Nuclear Resources and Environment at Donghua UniversityProject(2023-431)supported by the Stable Support for Scientific Research Project of the R&D Platform of China National Nuclear Corporation。
摘要Oleic acid is a commonly used fatty acid collector in fluorite flotation,known for its effective collecting performance and cost-effectiveness,but with a limited selectivity.In this study,a novel collector,α-sulfonate group mixed acid(α-SMA),is introduced.The flotation test results demonstrate that the α-SMA collector provides significantly better selectivity in fluorite flotation.Specifically,the α-SMA collector exhibits a similar collecting ability to oleic acid for fluorite;however,its capacity to collect calcite is substantially lower.Zeta potential tests indicate that,under identical dosage conditions,α-SMA adsorbs in greater quantities on fluorite than on calcite.As a result,fluorite exhibits substantially higher flotation recoveries versus calcite with α-SMA collector.X-ray photoelectron spectroscopic analysis suggests that α-SMA facilitates a higher electron donation to Ca2+ions on fluorite compared to calcite surface,forming stronger chemical bonds with fluorite surface.This enhanced interaction leads to stronger adsorption of α-SMA on fluorite.Furthermore,when α-SMA adsorbs solely through its sulfonic group,its carbon chain is positioned almost parallel to calcite surface.This configuration significantly reduces the hydrophobicity of the calcite surface,leading to very low calcite recovery rates with α-SMA collector.
基金supported by the National Key R&D Program of China under Grant No.2024YFB2906701.
摘要With the rapid advancement of generative artificial intelligence(AI)and large language model(LLM)technologies,AI agents are gradually becoming the core service units in networks,and their communication mode is evolving from local collaboration to wide-area interconnection.The construction of the Internet of Agents(IoA)faces multiple challenges,such as identity management,dynamic networking,and semantic routing,which urgently requires the design of a network protocol system that adapts to its new traffic characteristics and collaboration needs.Based on the application scenarios of agent communication,this paper systematically analyzes the management,control,and routing requirements that multi-agent collaboration imposes on IP networks,proposes a three-layer functional architecture for the IoA,and designs a protocol suite covering management,control,and routing around key issues such as agent registration and identification,service discovery,capability sensing,and cross-domain traffic assurance.By extending existing Internet protocols and introducing a semantically aware routing mechanism,this paper provides a scalable,efficient,and secure approach to implementing a protocol for end-to-end agent collaboration,thereby contributing to the construction of an open,large-scale agent collaboration ecosystem.
基金Funded by National Natural Science Foundation of China(No.52472033)。
摘要Dynamic thermal mechanical analysis was used to evaluate the viscoelasticity of asphalt.The parameters included the energy storage modulus(E),the loss modulus(E'),and the loss tangent(tanδ).The impact of three kinds of particles containing CaCO3with different size and structure on the mechanical properties was also measured.The addition of limestone increases the glass transition temperature,while nanoCaCO3@SiO2decreases the glass transition temperature.Nano-CaCO3has a negligible effect on the glass transition temperature.The particle size of the limestone is 0.075 mm,which is a material at the micrometer level.During the heating process,it hinders the molecular movement and makes the material harder.Thus the glass transition temperature is relatively high.