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Efficient and rapid capture of uranium(VI)in wastewater via multiamine modified b-cyclodextrin porous polymer

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Chinese Journal of Chemical Engineering 2024年第4期68卷 144-155页

作者： Xing Zhong Yubin tan Siyuan Wu caixia Hu Kai Guo Yongchuan Wu Neng Yu Mingyang Ma Ying Dai School of Chemistry and Materials Science East China University of TechnologyNanchang 330013China

It is quite important to ensure the safety and sustainable development of nuclear energy for the treatment of radioactive wastewater.To treat radioactive wastewater efficiently and rapidly,two multi-amine b-cyclodextrin polymers(diethylenetriamine b-cyclodextrin polymer(DETA-TFCDP)and triethylenetetramine b-cyclodextrin polymer(TETA-TFCDP))were prepared and applied to capture uranium.Results exhibited that DETA-TFCDP and TETA-TFCDP displayed the advantages of high adsorption amounts(612.2 and 628.2 mg·g^(-1),respectively)and rapid adsorption rates,which can reach(88±1)%of their equilibrium adsorption amounts in 10 min.Moreover,the adsorbent processes of DETA-TFCDP and TETATFCDP on uranium(VI)followed the Langmuir model and pseudo-second-order model,stating they were mainly chemisorption and self-endothermic.Besides,TETA-TFCDP also showed excellent selectivity in the presence of seven competing cations and could be effectively reused five times via Na2CO_(3)as the desorption reagent.Meanwhile,X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy illustrated that the enriched multi-amine groups and oxygen-containing functional groups on the surface of TETA-TFCDP were the main active sites for capturing uranium(VI).Hence,multi-amine b-cyclodextrin polymers are a highly efficient,rapid,and promising adsorbent for capturing uranium(VI)from radioactive wastewater.

关键词： Adsorption Waste water Pollution Uranium(VI) b-Cyclodextrin

Evaluation of Green Development Level of Electric Energy in Distribution Network Based on Multilevel Fuzzy Comprehensive Evaluation

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Energy Engineering 2022年第1期119卷 331-357页

作者： Zhongfu tan Jing Wang Caixia tan Gejirifu De School of Economics and Management North China Electric Power UniversityBeijing102206China School of Economics and Management Yan’an UniversityYan’an71600China State Grid Economic and Technological Research Institute Co. Ltd.Beijing102209China School of Electrical and Electronic Engineering North China Electric Power UniversityBeijing102206China

At present,there are few studies on the comprehensive evaluation of green power grid development in China,and all aspects of green power grid need to be evaluated.Therefore,this paper studies the green development level of power distribution network.This paper proposes a multi-level fuzzy comprehensive evaluation method,which first needs to classify the influencing factors.Therefore,this paper constructs an indicator system for the evaluation of green development of power distribution network from three dimensions.In order to avoid the influence of subjective factors,this paper adopts the model combining analytic hierarchy process and entropy weight method to give weight to indexes.Finally,five typical regions are selected for empirical analysis.The results show that the model established in this paper can reflect the green development level of power distribution network in each region and put forward relevant improvement suggestions for each region.

关键词： Incremental distribution network fuzzy comprehensive evaluation entropy weight method-analytic hierarchy process green development

Self assembled electron blocking and lithiophilic interface towards dendrite-free solid-state lithium battery

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Chinese Chemical Letters 2024年第4期35卷 220-225页

作者： caixia Li Yi Qiu Yufeng Zhao Wuliang Feng Institute for Sustainable Energy&College of Sciences Shanghai UniversityShanghai 200444China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Nankai UniversityTianjin 300071China

The poor interfacial contact is one of the biggest challenges that solid-state lithium batteries suffer from.Reducing the solid-state electrolyte surface energy by transforming the interface from lithiophobic to lithiophilic is effective to promote the interfacial contact, but electronic conductive interphases usually increase the risk of electron attack, thus leading to uncontrollable Li dendrite growth. Herein, we propose a self-assembled thermodynamic stable Li I interphase to simultaneously improve the interfacial contact between the garnet electrolyte Li_7La_(3)Zr_(2)O_(12)(LLZO) and Li anode, and prohibit the electron attack. The direct contact between LLZO and Li and the high temperature Li melting process was ascribed to Zr4+reduction, which facilitated Li dendrite formation and propagation. With the modification of the high lithiophilic I_(2) thin film, the area specific interfacial resistance of LLZO/Li was reduced from 1525 Ω/cm^(2) to 57 Ω/cm^(2). More importantly, LLZO was protected from being reduced due to the outstanding electronic insulativity of the Li I interphase, which leaded to a high critical current density of 1.2/7.0 m A/cm^(2) in the time/capacity-constant modes, respectively.

关键词： Li_7La_(3)Zr_(2)O_(12) LiI interphase Interfacial contact Li dendrite Thermodynamic stable

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Application of DSAPSO Algorithm in Distribution Network Reconfiguration with Distributed Generation

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Energy Engineering 2024年第1期121卷 187-201页

作者： caixia Tao Shize Yang Taiguo Li School of Automation and Electrical Engineering Lanzhou Jiaotong UniversityLanzhou730070China

With the current integration of distributed energy resources into the grid,the structure of distribution networks is becoming more complex.This complexity significantly expands the solution space in the optimization process for network reconstruction using intelligent algorithms.Consequently,traditional intelligent algorithms frequently encounter insufficient search accuracy and become trapped in local optima.To tackle this issue,a more advanced particle swarm optimization algorithm is proposed.To address the varying emphases at different stages of the optimization process,a dynamic strategy is implemented to regulate the social and self-learning factors.The Metropolis criterion is introduced into the simulated annealing algorithm to occasionally accept suboptimal solutions,thereby mitigating premature convergence in the population optimization process.The inertia weight is adjusted using the logistic mapping technique to maintain a balance between the algorithm’s global and local search abilities.The incorporation of the Pareto principle involves the consideration of network losses and voltage deviations as objective functions.A fuzzy membership function is employed for selecting the results.Simulation analysis is carried out on the restructuring of the distribution network,using the IEEE-33 node system and the IEEE-69 node system as examples,in conjunction with the integration of distributed energy resources.The findings demonstrate that,in comparison to other intelligent optimization algorithms,the proposed enhanced algorithm demonstrates a shorter convergence time and effectively reduces active power losses within the network.Furthermore,it enhances the amplitude of node voltages,thereby improving the stability of distribution network operations and power supply quality.Additionally,the algorithm exhibits a high level of generality and applicability.

关键词： Reconfiguration of distribution network distributed generation particle swarm optimization algorithm simulated annealing algorithm active network loss

Comparative transcriptome analysis reveals key genes and pathways in response to Alternaria alternata apple pathotype infection

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Horticultural Plant Journal 2024年第3期10卷 641-656页

作者： Kai Liu Zhaolin Liang An Yang Jiadi Yan Peihua Cong Xiaolei Han caixia Zhang Key Laboratory of Horticultural Crop Germplasm Utilization of the Ministry of Agriculture and Rural Affairs(MOA) Research Institute of PomologyChinese Academy of Agricultural SciencesXingchengLiaoning 125100China

Apple leaf spot,caused by the Alternaria alternata apple pathotype(AAAP),is an important fungal disease of apple.To understand the molecular basis of resistance and pathogenesis in apple leaf spot,the transcriptomes of two apple cultivars‘Hanfu'(HF)(resistant)and‘Golden Delicious'(GD)(susceptible)were analyzed at 0,6,18,24 and 48 h after AAAP inoculation by RNA-Seq.At each time point,a large number of significantly differentially expressed genes(DEGs)were screened between AAAP-inoculated and uninoculated apple leaves.Analysis of the common DEGs at four time points revealed significant differences in the resistance of‘HF'and‘GD'apple to AAAP infection.RLP,RNL,and JA signal-related genes were upregulated in both cultivars to restrict AAAP development.However,genes encoding CNLs,TNLs,WRKYs,and AP2s were only activated in‘HF'as part of the resistance response,of which,some play major roles in the regulation of ET and SA signal transduction.Further analysis showed that many DEGs with opposite expression trends in the two hosts may play important regulatory roles in response to AAAP infection.Transient expression of one such gene MdERF110 in‘GD'apple leaves improved AAAP resistance.Collectively,this study highlights the reasons for differential resistance to AAAP infection between‘HF'and‘GD'apples which can theoretically assist the molecular breeding of disease-resistant apple crops.

关键词： Apple Transcriptome Alternaria alternata apple pathotype Infection Defense response

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PLAU plays a functional role in driving lung squamous cell carcinoma metastasis

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Genes & Diseases 2024年第2期11卷 554-557页

作者： Pengbo Ning Fuyu Du Xiaocheng Gong Jingtong Yuan caixia Ding Xilian Zhao Wei Li School of Life Science and Technology Xidian UniversityXi'anShaanxi 710071China Engineering Research Center of Molecular & Neuroimaging Ministry of EducationXi'anShaanxi 710071China Department of Medical Oncology Zhongshan HospitalFudan UniversityShanghai 200032China Department of Pathology Shaanxi Provincial Tumor HospitalXi'an Jiaotong UniversityXi'anShaanxi 710061China

The high mortality of patients with lung squamous cell carcinoma(LUSC)results from metastasis rather than primary tumors,1 whereas the molecular pathogenesis of cancer metastasis remains poorly understood.PLAU encodes urokinase-type plasminogen activator(uPA)which is closely related to tumor diagnosis,treatment target,and prognosis of patients.2.3 We previously predicted that PLAU is a key gene negatively associated with overall survival by integrated multidimensional analyses of The Cancer Genome Atlas(TCGA)datasets from 504 samples of LUSC tumor tissues and 46 samples of adjacent non-tumorous lung tissues.4 However,whether the role of PLAU contributes to the metastasis of LUC remains unclear.Here,we analyzed the association between uPA levels and LUSC and found that uPA levels were associated with pathological variations in LUSC patients.

关键词： metastasis lung squamous

Parameter matching and experiment of the combined cyclone separation and cylinder sieve cleaning system for rape combine harvester

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International Journal of Agricultural and Biological Engineering 2024年第1期17卷 128-136页

作者： Jiacheng Yuan Qingxi Liao Xingyu Wan Jia Yang caixia Shu College of Engineering Huazhong Agricultural UniversityWuhan 430070China Key Laboratory of Agricultural Equipment in Mid-lower Yangtze River Ministry of Agriculture and Rural AffairsWuhan 430070China

Existing rape combine harvester with a cyclone separation cleaning device has the challenge that the loss rate and the cleaning rate increase and decrease simultaneously.A cleaning process route was proposed,which involves the cyclone separation cleaning device removing light and tiny impurities,and the cylinder sieve device removing coarse and long impurities such as pod shells and short stems.A novel cleaning system combining the cyclone separation cleaning device and cylinder sieve cleaning devices was designed.The ranges of the structure and operation parameters for each component were analyzed based on kinematics and dynamic analysis.A four-factor five-level quadratic orthogonal test was carried out,in which the loss rate and cleaning rate were taken as the evaluation indexes.The velocity at the suction port,the rotation speed of the cylinder sieve,the screw pitch of the spiral blade and the diameter of the sieve hole were taken as the influencing factors.The orthogonal test results showed that the cleaning system performed best at a rotation speed of the winnower is 600 r/min,an airflow velocity at the suction port is 18.25 m/s,a rotation speed of the cylinder sieve is 87 r/min,a screw pitch of the spiral blade is 440 mm and a diameter of the sieve hole is 4.48 mm.At this time,the loss rate of the cleaning system is 3.22%,and the cleaning rate is 95.67%.Compared to the conventional cyclone separation cleaning device,the loss rate is reduced by 2.17%and the cleaning rate is increased by 1.05%.This study can provide a reference for the optimal cleaning system design for rape combine harvesters.

关键词： agricultural engineering cleaning system cyclone separation cylinder sieve rapeseed combine harvester

High-performance,low-power,and flexible ultraviolet photodetector based on crossed ZnO microwires p-n homojunction

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Photonics Research 2024年第4期12卷 648-662页

作者： SHULIN SHA KAI tanG MAOSHENG LIU PENG WAN CHENYANG ZHU DANING SHI caixia KAN MINGMING JIANG College of Physics MIIT Key Laboratory of Aerospace Information Materials and PhysicsKey Laboratory for Intelligent Nano Materials and DevicesNanjing University of Aeronautics and AstronauticsNanjing 211106China

Low-power, flexible, and integrated photodetectors have attracted increasing attention due to their potential applications of photosensing, astronomy, communications, wearable electronics, etc. Herein, the samples of ZnO microwires having p-type(Sb-doped ZnO, ZnO:Sb) and n-type(Ga-doped ZnO, ZnO:Ga) conduction properties were synthesized individually. Sequentially, a p-n homojunction vertical structure photodiode involving a single ZnO:Sb microwire crossed with a ZnO:Ga microwire, which can detect ultraviolet light signals, was constructed.

关键词： power ultraviolet conduction

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Efficient and rapid capture of uranium(Ⅵ) in wastewater via multiamine modified β-cyclodextrin porous polymer

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Chinese Journal of Chemical Engineering 2024年第4期 144-155页

作者： Xing Zhong Yubin tan Siyuan Wu caixia Hu Kai Guo Yongchuan Wu Neng Yu Mingyang Ma Ying Dai East China University of Technology School of Chemistry and Materials Science

It is quite important to ensure the safety and sustainable development of nuclear energy for the treatment of radioactive wastewater. To treat radioactive wastewater efficiently and rapidly, two multi-amineβ-cyclodextrin polymers(diethylenetriamine β-cyclodextrin polymer(DETA-TFCDP) and triethylenetetramine β-cyclodextrin polymer(TETA-TFCDP)) were prepared and applied to capture uranium. Results exhibited that DETA-TFCDP and TETA-TFCDP displayed the advantages of high adsorption amounts(612.2and 628.2 mg·g-1, respectively) and rapid adsorption rates, which can reach(88 ± 1)% of their equilibrium adsorption amounts in 10 min. Moreover, the adsorbent processes of DETA-TFCDP and TETATFCDP on uranium(Ⅵ) followed the Langmuir model and pseudo-second-order model, stating they were mainly chemisorption and self-endothermic. Besides, TETA-TFCDP also showed excellent selectivity in the presence of seven competing cations and could be effectively reused five times via Na2CO3as the desorption reagent. Meanwhile, X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy illustrated that the enriched multi-amine groups and oxygen-containing functional groups on the surface of TETA-TFCDP were the main active sites for capturing uranium(Ⅵ). Hence, multi-amineβ-cyclodextrin polymers are a highly efficient, rapid, and promising adsorbent for capturing uranium(Ⅵ)from radioactive wastewater.

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