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Innovative dual-mode device integrating capacitive desalination and solar vapor generation for high-efficiency seawater desalination

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Journal of Energy Chemistry 2025年第1期 171-179页

作者： Jiacheng Wang Zhaoyu Chen Ruduan yuan Jiaxin Luo Ben zhang Keju Ji Meng Li Juanxiu Xiao Kuan Sun National Innovation Center for Industry-Education Integration of Energy Storage Technology MOE Key Laboratory of Low-grade Energy Utilization Technologies and SystemsCollege of Energy & Power Engineering Chongqing University Xuefeng Mountain Energy Equipment Safety National Observation and Research Station CQU-NUS Renewable Energy Materials & Devices Joint Laboratory Chongqing University Southwest Technology and Engineering Research Institute Jiangsu Provincial Key Laboratory of Bionic Functional Materials College of Mechanical and Electrical Engineering Nanjing University of Aeronautics and Astronautics State Key Laboratory of Marine Resources Utilization in South China Sea Collaborative Innovation Center of Marine Science and Technology School of Marine Science and Engineering Hainan University

Solar-driven interface evaporation with high solar-to-steam conversion efficiency has shown great potential in seawater ***,due to the influence of latent heat and condensation efficiency,the water yield from solar-driven interface evaporation remains insufficient,posing a significant challenge that requires *** this work,we designed a dual-mode high-flux seawater desalination device that combines solar-driven interface evaporation and capacitive *** utilizing coupled desalination materials exhibiting both photothermal conversion and capacitance activity,the device demonstrated photothermal evaporation rates of 1.41 and 0.97 kg m-2h-1for condensate water yield under one-sun ***,the device exhibited a salt adsorption capacity of up to48 mg g-1and a salt adsorption rate of 2.1 mg *** addition,the salt adsorption capacity increased by approximately 32% under one-sun ***,photo-enhanced capacitive desalination performance was explored through numerical simulations and theoretical *** calculations and characterizations confirmed that the defect energy levels formed by the introduction of sulfur vacancies can effectively widen the light absorption range,improve photothermal conversion performance,and stimulate more photoelectrons to participate in capacitive ***,the electron distribution state of molybdenum disulfide with sulfur vacancies and surface defect sites contributes to ion/electron transport at the solid-liquid *** work provides a novel pathway for integrating solar vapor generation with other low-energy desalination technologies.

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Tumor microenvironment-responsive modular integrated nanocomposites for magnetically targeted and photothermal enhanced catalytic therapy

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Nano Research 2023年第7期16卷 9826-9834页

作者： yuan Liang Yilin Liu Pengpeng Lei Zhen zhang Hongjie zhang State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of Sciences5625 Renmin StreetChangchun 130022China School of Materials Science and Engineering Sun Yat-sen UniversityGuangzhou 510275China School of Rare Earths University of Science and Technology of ChinaHefei 230026China Ganjiang Innovation Academy Chinese Academy of SciencesGanzhou 341000China Department of Chemistry Tsinghua UniversityBeijing 100084China

Achieving efficient integration of cancer diagnosis and therapy is of great significance to human health,but the construction of a multifunctional intelligent therapy system still faces great *** this study,we report an integrated multifunctional nanocomposite constructed by a simple modular assembly *** nanocomposites are composed of three different nanomaterials:Fe_(3)O_(4),Au,and NaErF_(4):0.5%Tm@NaYF_(4)upconversion nanoparticles(UCNPs).In this design,Fe_(3)O_(4)nanoparticles have nanozyme effect of peroxidase-like activity,which can react with H_(2)O_(2)in the tumor microenvironment to generate hydroxyl *** of its magnetic properties,it can help the nanocomposites to aggregate under the induction of magnetic *** nanoparticles exhibit nanozyme effect of glucose oxidase-like *** can catalyze the conversion of glucose to gluconic acid and H_(2)O_(2).Ingeniously,the generated H_(2)O_(2)provides a source of reactants for the reaction of the Fe_(3)O_(4)*** addition,the photothermal effect of Au nanoparticles under 808 nm irradiation further enhanced the nanozyme activity of Fe_(3)O_(4)and Au ***,UCNPs can emit near-infrared(NIR)-II fluorescence under 808 nm irradiation,which can provide imaging-guided during cancer ***,the nanocomposites were further modified by poly(vinylpyrrolidone)(PVP)to obtain UCNPs/Au/Fe_(3)O_(4)-PVP with good biocompatibility and high-efficiency cancer treatment ability.

关键词： modular integrated magnetic induction photothermal effect near-infrared(NIR)-II imaging nanozyme catalyzed reactions

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Mapping impervious surfaces with a hierarchical spectral mixture analysis incorporating endmember spatial distribution

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Geo-Spatial Information Science 2022年第4期25卷 550-567页

作者： Zhenfeng Shao yuan zhang Cheng zhang Xiao Huang Tao Cheng State Key Laboratory of Information Engineering in Surveying Mapping and Remote SensingWuhanChina Department of Geosciences University of ArkansasFayettevilleARUSA

Impervious surface mapping is essential for urban environmental *** Mixture Analysis(SMA)and its extensions are widely employed in impervious surface estimation from medium-resolution *** SMA,inappropriate endmember combinations and inadequate endmember classes have been recognized as the primary reasons for estimation ***,the spectral-only SMA,without considering urban spatial distribution,fails to consider spectral variability in an adequate *** lack of endmember class diversity and their spatial variations lead to over/*** mitigate these issues,this study integrates a hierarchical strategy and spatially varied endmember spectra to map impervious surface abundance,taking Wuhan and Wuzhou as two study ***,the piecewise convex multiple-model endmember detection algorithm is applied to automatically hierarch-ize images into three regions,and distinct endmember combinations are independently developed in each ***,spatially varied endmember spectra are synthesized through neighboring spectra using the distance-based *** analysis indicates that the proposed method achieves better performance than Hierarchical SMA and Fixed Four-endmembers SMA in terms of MAE,SE,and *** analysis suggests that the hierarch-ical strategy can expand endmember class types and considerably improve the performance for the study areas in general,specifically in less developed ***,we find that spatially varied endmember spectra facilitate the reduction of heterogeneous surface material variations and achieve the improved performance in developed areas.

关键词： Impervious surface Spectral Mixture Analysis(SMA) hierarchical strategy endmember class spatially varied endmember spectra

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Blockchain-Based Dynamic Group Key Agreement Protocol for Ad Hoc Network

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Chinese Journal of Electronics 2020年第3期29卷 447-454页

作者： zhang Qikun WANG Bingli zhang Xiaosong yuan Junling WANG Ruifang Institute of Computer and Communication Engineering Zhengzhou University of Light Industry Department of Computer Science and Technology Tangshan University

Group key agreement(GKA) is one of the key technologies for ensuring information exchange security among group members. While GKA is widely used in secure multi-party computation, safety of resources sharing, and distributed collaborative computing. It still has some security flaws and limitations. We proposes a Blockchain-based dynamic Group key agreement(BDGKA) protocol. In contrast to prior works, BDGKA differs in several significant ways: 1) anonymous identity authentication-it can prevent privacy leaks; 2)traceability-it can track illegal operating entities; 3) load balancing-it balances computation and communication to each node, avoiding the breakdown of single-point and network bottlenecks. This protocol is proven secure under the hardness assumption of decision bilinear DiffieHellman. The performance analysis shows that it is more efficient than the referred works.

关键词： Dynamic group key agreement Blockchain Anonymous authentication Information exchange

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Cultural Conflict and Cross cultural Adaptation

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学术界 2014年第10期 279-284页

作者： zhang yuan School of Foreign Languages Jiangsu University of Science and Technology Zhenjiang Jiangsu 212003

In Cross-cultural exchanges,there are existing differences between cultures;cultural rejection of psychological and cultural hegemony of thinking leads to widespread cultural conflict. It will cause conflict,including cultural,forms and exchanges. Cultural conflict causes cross-cultural prejudices and opposition,which lead to cultural adaptation barriers; therefore cross-cultural exchanges must adhere to civilization dialogue on the basis of cultural awareness and self-confidence. Respect for cultural differences with equal attitude and advocate for solution to cultural conflict are needed to improve the cultural adaptability.

关键词：文化冲突跨文化文化交流排斥反应文化霸权文化自觉文化差异适应性

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REG增强的脱细胞猪角膜/聚甲基丙烯酸羟乙酯原位一体式全层复合人工角膜

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中国组织工程研究 2025年第16期29卷 3388-3399页

作者：辛远吴茜茜全亮张亨通敖强四川大学生物医学工程学院四川省成都市610064

背景:目前用于全层移植的人工角膜缺乏生物活性及力学适配性,组合式人工角膜存在镜柱和周围组分间的界面问题。目的:在脱细胞猪角膜原位固化制备具有多肽增强、匹配自然角膜机械强度、良好透光性的一体式全层人工角膜。方法:使用非离子... 详细信息

背景:目前用于全层移植的人工角膜缺乏生物活性及力学适配性,组合式人工角膜存在镜柱和周围组分间的界面问题。目的:在脱细胞猪角膜原位固化制备具有多肽增强、匹配自然角膜机械强度、良好透光性的一体式全层人工角膜。方法:使用非离子型脱细胞试剂Triton X-100与超声冻融及超级核酸酶相结合的方法制备脱细胞猪角膜,将聚甲基丙烯酸羟乙酯单体与光引发剂同时引入脱细胞猪角膜中,通过紫外滤光片遮住除中心区域以外的部分,使用275 nm紫外光引发中央区域聚合,除去未反应的单体及引发剂后得到中央光学区,同理在后板层固化隔水区,最后引入REG活性多肽,得到原位一体式全层人工角膜,表征人工角膜的物理性能、力学性能、透光性、降解性能及体内外生物相容性。结果与结论:①实验在脱细胞猪角膜的中央区域采用聚甲基丙烯酸羟乙酯原位构建了一个具有聚合物和胶原纤维共存的光学区,扫描电镜下可见人工角膜的上表面较为粗糙且轮廓不规则,具有明显的凹陷和突起结构,下表面相对光滑;该人工角膜具有接近于天然角膜的力学性能,光学区透光率达到自然角膜的80%,浸泡于含胶原酶的PBS无菌溶液中可较好地保留固化光学区和隔水区,维持角膜的基本结构;该人工角膜具有良好的细胞相容性,能够为细胞提供适宜的黏附生长环境,有利于角膜上皮细胞的迁移和黏附,促进血管内皮细胞的生长和新生血管的形成,促进上皮化过程;人工角膜植入SD大鼠皮下12周后具有良好的生物相容性和安全性,可降低植入初期的急性炎症反应;②结果表明,实验制备的一体式全层人工角膜具有作为全层人工角膜支架材料的潜力。

关键词：人工角膜脱细胞猪角膜紫外光固化甲基丙烯酸羟乙酯组织工程 REG多肽

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Separation and determination of acetyl-glutamine enantiomers by HPLC–MS and its application in pharmacokinetic study

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Journal of Pharmaceutical Analysis 2017年第5期7卷 303-308页

作者： Xiaoxiao zhang Lei Gao Zunjian zhang yuan Tian Key Laboratory of Drug Quality Control & Pharmacovigilance (China Pharmaceutical University) Ministry of Education State Key Laboratory of Natural Medicine China Pharmaceutical University

A high-performance liquid chromatography coupled with mass spectrometry(HPLC–MS) method was established for the separation and determination of acetyl-glutamine enantiomers(acetylL-glutamine and acetylD-glutamine) simultaneously. Baseline separation was achieved on Chiralpak AD-H column(250 mm ×4.6 mm, 5 μm). n-Hexane(containing 0.1% acetic acid) and ethanol(75:25, v/v) were used as mobile phase at a flow rate of 0.6 m L/min. The detection was operated in the negative ion mode with an ESI source. [M-H]-m/z187.0540 for enantiomers and [M-H]-m/z 179.0240 for aspirin(IS) were selected as detecting ions. The linear range of the calibration curve for each enantiomer was 0.05–40 μg/m L. The precision of this method at concentrations of 0.5–20 μg/m L was within 7.23%, and the accuracy was 99.81%–107.81%. The precision at LOQ(0.05 μg/m L) was between 16.28% and 17.56%, which was poor than that at QC levels. The average extraction recovery was higher than 85% for both enantiomers at QC levels. The pharmacokinetics of enantiomers was found to be stereoselective. There was not chiral inversion in vivo or in vitro between enantiomers.

关键词： HPLC–MS Acetyl-glutamine Enantiomers separation Pharmacokinetics Chiral inversion

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Time-Periodic Solution to the Compressible Navier–Stokes/Allen–Cahn System

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Acta Mathematica Sinica,English Series 2020年第4期36卷 419-442页

作者： Chang Ming SONG Jian Lin zhang yuan yuan WANG Department of Applied Mathematics College of ScienceZhongyuan University of TechnologyZhengzhou 450007P.R.China

In this paper,we investigate the time-periodic solution to a coupled compressible Navier–Stokes/Allen–Cahn system which describes the motion of a mixture of two viscous compressible fluids with a time periodic external force in a periodic domain in R^*** existence of the time-periodic solution to the system is established by using an approach of parabolic regularization and combining with the topology degree theory,and then the uniqueness of the period solution is obtained under some smallness and symmetry assumptions on the external force.

关键词： Navier–Stokes equation Allen–Cahn equation two-phase flows time-periodic solution topology degree theory

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Recent advances in non-precious metal electrocatalysts for pH-universal hydrogen evolution reaction

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Green Energy & Environment 2021年第4期6卷 458-478页

作者： Shen zhang Xing zhang yuan Rui Ruihu Wang Xiaoju Li Fujian Key Laboratory of Polymer Materials College of Chemistry and Materials ScienceFujian Normal UniversityFuzhouFujian350007China State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350002China

Hydrogen production by water electrolysis is a compelling technology to produce fuels and chemicals powered by renewable *** is highly desirable to develop cost-effective and durable electrocatalysts for hydrogen evolution reaction(HER).This review has summarized recent progress in mechanism understanding of non-precious metal electrocatalysts for pH-universal *** general approaches have been demonstrated to overcome the activity/stability limitations of the electrocatalysts for HER in a broad pH *** perspectives and challenges for the development of p H-universal HER electrocatalysts have also been *** review sheds light on the design and fabrication of high-performance electrocatalysts for versatile HER-related energy technologies.

关键词： Electrocatalysis Hydrogen evolution reaction Transition metal Nanomaterials Water electrolysis

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Level density of odd-A nuclei at saddle point

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Nuclear Science and Techniques 2023年第8期34卷 164-173页

作者： Wei zhang Wei Gao Gui-Tao zhang Zhi-yuan Li School of Physics and Microelectronics Zhengzhou UniversityZhengzhou 450001China

Based on the covariant density functional theory,by employing the core–quasiparticle coupling(CQC)model,the nuclear level density of odd-A nuclei at the saddle point is *** total level density is calculated via the convolution of the intrinsic level density and the collective level *** intrinsic level densities are obtained in the finite-temperature covariant density functional theory,which takes into account the nuclear deformation and pairing *** saddle points on the free energy surface in the(β_(2),γ)plane,the entropy and the associated intrinsic level density are compared with those of the global *** introducing a quasiparticle to the two neighboring even–even core nuclei,whose properties are determined by the five-dimensional collective Hamiltonian model,the collective levels of the odd-A nuclei are obtained via the CQC *** total level densities of the^(234-240)U agree well with the available experimental data and Hilaire’s ***,the ratio of the total level densities at the saddle points to those at the global minima and the ratio of the total level densities to the intrinsic level densities are discussed separately.

关键词： Level density Covariant density functional theory Core–quasiparticle coupling model Saddle point

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