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Rapid and scalable preparation of highly quaternized polymer networks to achieve efficient simultaneous adsorption of iodide and pertechnetate

作者： GAO Si-ze NI Bang-fa ZHANG Gui-ying XIAO Cai-jin liu Cun-xiong CHEN Zhe NIE peng liu Chao ZHAO Chang-jun College of Physics Science and Engineering Technology Guangxi University

This system is designed to pick up sound signals from large volume,low-threshold energy, low-background superheated droplets bubble detectors.A sound-sensitive bubble detector is composed of a container filled with a mixture of superheated droplets and gel,a temperature and pressure control system,and an audio acquisition system attached on the outer surface of the *** superheated droplets are in a metastable and superheated state at ambient temperature and *** the outside

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Science China Chemistry 2025年第1期 337-349页

作者： Meiyun Xu Song Gu Fulong Chen Zhe Zhao peng liu Daoben Hua State Key Laboratory of Radiation Medicine and Protection School of Radiological and Interdisciplinary Sciences (RAD-X) Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions Soochow University

The efficient separation of fission products,such as TcO4-and I-,holds strategic significance for the management of radioactive wastes and environmental *** this study,we propose an ultrafast strategy for scalable preparation of a highly quaternized organic network to facilitate efficient and synchronous separation of iodide and *** network can be prepared within a few minutes at room temperature,using polyethylenimine and 1,2,4,5-tetrakis（bromomethyl）benzene as building *** chlorine replacement,the network,abundantly decorated with quaternary ammonium groups （Cl@QPN）,exhibits an ultrahigh positive charge density of 7.6 mmol/*** enables the rapid and efficient enrichment of target anions through strong electrostatic Coulomb *** a result,Cl@QPN exhibits significantly higher adsorption rate constants of 0.830 g/（mg min） for ReO4-（a nonradioactive surrogate of TcO4-） and 0.677 g/（mg min） for I-compared to other ***,it possesses high adsorption capacities,reaching 1,681 mg/g for ReO4-and 917.4 mg/g for I-.Cl@QPN also demonstrates good selectivity towards target ions and shows efficient adsorption for99TcO4-.Additionally,Cl@QPN exhibits high dynamic processing capacities,handling up to 3,100 and 7,400 kg of simulated streams per kilogram of material for I-and ReO4-,respectively.

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Synthesis strategies for disulfide bond-containing polymer- based drug delivery system for reduction-responsive controlled release

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Frontiers of Materials Science 2015年第3期9卷 211-226页

作者： Lei liu peng liu State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 China

Tumor micro-environment responsive drug delivery systems （DDSs） have been developed as a potential approach to reduce the side effects of cancer chemotherapy. Glutathione （GSH） has been supposed to the most significant signal of the difference between the normal tissue and the tumor cells, besides the media pH and temperature. In recent years, the reduction-responsive DDSs have attracted more and more attention for delivery of anti-cancer drugs, based on such physiological signal. Among them, disulfide bond-containing polymers have been designed as the main tool for the purpose. The recent progress in the synthesis strategies for the disulfide bond- containing polymer-based DDS is focused in the present review.

关键词： drug delivery system (DDS) reduction-responsive disulfide bond-containing polymer tumor micro-environment responsive

Particle motion simulation and pulverized coal injection combustion simulation of titanomagnetite pellets in rotary kiln for reduction process with coal

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Journal of Iron and Steel Research International 2022年第6期29卷 891-906页

作者： peng liu Bing-guo liu Li-bo Zhang Jin-hui peng State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization Kunming University of Science and TechnologyKunming 650093YunnanChina Yunnan Provincial Key Laboratory of Intensification Metallurgy Kunming 650093YunnanChina National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology Kunming 650093YunnanChina Faculty of Metallurgical and Energy Engineering Kunming University of Science and TechnologyKunming 650093YunnanChina

The production process of direct reduced iron from titanomagnetite by coal reduction in air in rotary kiln is a key step in the extraction of titanium and *** process is conducive to alleviating the stocking problem of a large amount of Tibearing blast furnace *** relationships between particle movement and pulverized coal injection combustion in rotary kiln were studied by the particle motion simulation and the pulverized coal injection combustion *** particle motion simulation,the repose angle of ore particles was calculated to be 28.06°,and the reaction zone was roughly determined by the reaction temperature isothermal surface and the repose angle;the axial discrete distribution of ore particles would further cause the axial energy fluctuation due to the endothermic nature of the *** pulverized coal injection combustion simulation,the rebound effect of coal injection under gravity would cause local overheating in the rebound region due to the benefits of heat and mass transfer processes,while this could strengthen the reduction reaction of ore particles and cause agglomerate by *** suggestions on weakening the energy fluctuation and agglomerate were proposed based on the characteristics of particle motion and external carbon reaction.

关键词： Titanomagnetite Rotary kiln Reaction zone Energy fluctuation Rebound effect

Position paper:GPT conjecture:understanding the trade‑offs between granularity,performance and timeliness in control‑flow integrity

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Cybersecurity 2021年第2期4卷 519-527页

作者： Zhilong Wang peng liu The Pennsylvania State University State CollegeUSA

Performance/security trade-off is widely noticed in CFI research,however,we observe that not every CFI scheme is subject to the *** by the key observation,we ask three questions:➊does trade-off really exist in different CFI schemes?➋if trade-off do exist,how do previous works comply with it?➌how can it inspire future research?Although the three questions probably cannot be directly answered,they are *** find that a deeper understanding of the nature of the trade-off will help answer the three ***,we proposed the GPT conjecture to pinpoint the trade-off in designing CFI schemes,which says that at most two out of three properties(fine granularity,acceptable performance,and preventive protection)could be achieved.

关键词： Conjecture Control-flow integrity Trade-off

Multiplicity of Homoclinic Solutions for Second Order Hamiltonian Systems with Local Conditions at the Origin

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Acta Mathematica Sinica,English Series 2022年第4期38卷 735-744页

作者： peng liu Fei GUO School of Mathematics Tianjin UniversityTianjin 300354P.R.China Tianjin Key Laboratory of Brain-Inspired Intelligence Technology Tianjin 300354P.R.China

In this paper,the multiplicity of homoclinic solutions for second order non-autonomous Hamiltonian systemsü(t)-L(t)u(t)+▽uW(t,u(t))=0 is obtained via a new Symmetric Mountain Pass Lemma established by Kajikiya,where L∈C(R,RN×N)is symmetric but non-periodic,W∈C1(R×RN,R)is locally even in u and only satisfies some growth conditions near u=0,which improves some previous results.

关键词： Second order non-autonomous Hamiltonian systems Homoclinic solutions multiplicity new symmetric mountain pass lemma

Multiplicity of Periodic Solutions for Second Order Hamiltonian Systems with Asymptotically Quadratic Conditions

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Acta Mathematica Sinica,English Series 2020年第1期36卷 55-65页

作者： peng liu Fei GUO School of Mathematics Tianjin University

A class of second order non-autonomous Hamiltonian systems with asymptotically quadratic conditions is considered in this *** Fountain Theorem,one multiplicity result of periodic solutions is obtained,which improves s...

关键词： Second order Hamiltonian systems asymptotically quadratic conditions Fountain Theorem periodic solution multiplicity

ELECTROREDUCTION　OF　Zn2＋　AND　Ni2＋　AND　Cu2＋　IN　UREA－CHLORIDES　MELT

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中国有色金属学会会刊：英文版 1996年第2期6卷 41-44,52页

作者： liu, peng Yang, Qiqin liu, Guankun Department of Chemistry Zhongshan University Guangzhou 510275 China

ＥＬＥＣＴＲＯＲＥＤＵＣＴＩＯＮＯＦＺｎ２＋ＡＮＤＮｉ２＋ＡＮＤＣｕ２＋ＩＮＵＲＥＡ－ＣＨＬＯＲＩＤＥＳＭＥＬＴＬｉｕＰｅｎｇ；ＹａｎｇＱｉｑｉｎ；ＬｉｕＧｕａｎｋｕｎ(ＤｅｐａｒｔｍｅｎｔｏｆＣｈｅｍｉｓｔｒｙ，Ｚ...

ＥＬＥＣＴＲＯＲＥＤＵＣＴＩＯＮＯＦＺｎsup>２＋/sup>ＡＮＤＮｉsup>２＋/sup>ＡＮＤＣｕsup>２＋/sup>ＩＮＵＲＥＡ－ＣＨＬＯＲＩＤＥＳＭＥＬＴＬｉｕＰｅｎｇ；ＹａｎｇＱｉｑｉｎ；ＬｉｕＧｕａｎｋｕｎ(ＤｅｐａｒｔｍｅｎｔｏｆＣｈｅｍｉｓｔｒｙ，ＺｈｏｎｇｓｈａｎＵ?..

关键词： urea-chlorides melt, electroreduction of Zn￣(2+), Ni￣(2+) and Cu￣(2+) diffusion coefficient transfer coefficient

Facile electrodepositing coral-/urchin-like polyaniline on carbon cloth in salty media as electrode for high-performance flexible supercapacitors

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Progress in Natural Science:Materials International 2023年第5期33卷 668-673页

作者： Jinmei Li Lining Zhao peng liu College of Chemistry and Chemical Engineering State Key Laboratory of Applied Organic Chemistry Lanzhou University

The electrochemical performance of the carbon cloth(CC)-based flexible electrodes is determined by the kind,micro-structure, and morphology of the deposited pseudocapacitive materials. In the present work, the coral-/urchin-like polyaniline(PANI) was designed to boost the electrochemical property of CC, by integrating the microstructure advantages of coral-like and nanowire arrays, via the facile electrochemical polymerization of aniline on the functionalized carbon cloth(FCC) in salty media. The corresponding electrode delivered a high specific capacitance of 3376 m F cm-2at 1 m A cm-2and 151 F g-1at 1 A g-1, with an ultrahigh boosting in specific capacitance of 246 % and superior cycling stability of 149.8 % after 10,000 cycles, in comparison with the reported PANI/CC ones via electrodeposition. This work provided a new idea for the construction of conductive polymers with unique nano-architectures on CC for high-performance electrodes for flexible supercapacitors.

关键词： Flexible solid-state supercapacitors Coral-/urchin-like polyaniline Electrodeposition Salty media Carbon cloth

Cooperative Game Theory Based Coordinated Scheduling of Two-Machine Flow-Shop and Transportation

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Journal of Systems Science & Complexity 2023年第6期36卷 2415-2433页

作者： SUN Wenjuan GONG Hua liu peng School of Management Shenyang University of TechnologyShenyang110870China Liaoning Key Laboratory of Intelligent Optimization and Control for Ordnance Industry School of ScienceShenyang Ligong UniversityShenyang110159China

A cooperative game theoretical approach is taken to production and transportation coordinated scheduling problems of two-machine flow-shop(TFS-PTCS problems)with an interstage *** authors assume that there is an initial scheduling order for processing jobs on the *** cooperative sequencing game models associated with TFS-PTCS problems are established with jobs as players and the maximal cost savings of a coalition as its *** properties of cooperative games under two different types of admissible rearrangements are *** TFS-PTCS problems with identical processing time,it is proved that,the corresponding games areσ_(0)-component additive and convex under one admissible *** Shapley value gives a core allocation,and is provided in a computable *** the other admissible rearrangement,the games neither need to beσ_(0)-component additive nor convex,and an allocation rule of modified Shapley value is *** properties of the cooperative games are analysed by a counterexample for general problems.

关键词： Cooperative sequencing games core allocation production and transportation coordinated scheduling Shapley value two-machine flow-shop