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Metabolic and electrical responses to potassium deficiency stress in strawberries

Engineering in Agriculture, Environment and Food 2023年第2期16卷 53-61页

作者： Kuroda, Kiko Imaizumi, Teppei Yasuda, Masaharu Niikawa, Takeshi Nakano, Kohei Katsuno, Nakako Nishizu, Takahisa Graduate School of Natural Science and Technology Gifu University Japan Faculty of Applied Biological Sciences Gifu University Japan Gifu University Institute for Advanced Study Japan Gifu Prefectural Agricultural Technology Center Japan United Graduate School of Agricultural Science Gifu University Japan

The effects of potassium concentration on the metabolomic and electrical responses of strawberry fruits were investigated. The potassium concentration of fruit harvested in January, March, and April were determined. Quality differences were observed in April, with lower potassium levels resulting in lower Brix values and acidity. Intracellular resistance and cell membrane capacity, as determined by impedance analysis, were correlated with acidity and sugar content, respectively. In addition, metabolomic analysis by gas chromatography-tandem mass spectrometry (GC-MS / MS) indicated that stress markers, such as putrescine, were detected before quality differences appeared. While impedance analysis is useful for evaluating the tissue condition of strawberries, metabolomic analysis can be used to predict quality changes. © 2023 Elsevier B.V.. All rights reserved.

关键词： Mass spectrometry

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Detoxification strategy of Microcystis aeruginosa to the toxicity of Cd(Ⅱ):role of EPS in alleviating toxicity

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Journal of Oceanology and Limnology 2024年第3期42卷 802-815页

作者： Xingye HAN Fangyuan LIU Yibo ZHANG Kai CHENG Heyun WANG Hongmei GE Innovation Demonstration Base of Ecological Environment Geotechnical and Ecological Restoration of Rivers and Lakes School of Civil EngineeringArchitecture and EnvironmentHubei University of TechnologyWuhan 430068China School of Environmental Science and Engineering Huazhong University of Science and TechnologyWuhan 430074China National Engineering Research Center of Advanced Technology and Equipment for Water Environment Pollution Monitoring Wuhan 430068China

Although many studies have found that cadmium(Cd)can be toxic to microalgae,only a few reports focused on the role of extracellular polymeric substances(EPS)in Cd(Ⅱ)*** biochemical and physiological endpoints of Microcystis aeruginosa,including the composition and functional groups of soluble EPS(SL-EPS),loosely bound EPS(LB-EPS),and tightly bound EPS(TB-EPS),were detected to elucidate the toxicity and detoxification mechanisms of Cd(Ⅱ)for *** and physiological assays on *** showed that the 0.25-mg/L Cd(Ⅱ)resulted in a larger inhibition on growth and F_(v)/F_(m).Nevertheless,Cd(Ⅱ)significantly induced much higher contents of superoxide dismutase(SOD),intracellular microcystin LR(MC-LR),extracellular MC-LR,and *** electron microscopy with energy dispersive X-ray spectroscopy confirmed that Cd(Ⅱ)was absorbed into the EPS *** transform infrared spectrum analysis revealed that the functional groups bound with Cd(Ⅱ)of algae biomass,SL-EPS,LB-EPS,and TB-EPS were somewhat *** C=O/C=N groups ofδ-lactam or protein were their prominent functional groups,suggesting that amide or proteins in the EPS played a key role in the adsorption in Cd(Ⅱ).The concentration of 0.25 mg/L of Cd(Ⅱ)may change the chemical structure of EPS by altering the production of protein-like substances containing *** study indicated that *** could detoxify Cd(Ⅱ)stress via induction of antioxidant capacity(higher SOD activity and MC synthesis),EPS production,and modification in chemical structure of EPS.

关键词： Microcystis aeruginosa cadmium extracellular polymeric substances(EPS) microcystin detoxification

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A multi-fidelity prediction model for vertical bending moment and total longitudinal stress of a ship based on composite neural network

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Journal of Hydrodynamics 2023年第1期35卷 27-35页

作者： Cai-xia Jiang Yu-bo Liu Zi-yuan Wang Shuai Chen Sheng-ze Cai Qi Gao Xue-ming Shao Science and Technology on Advanced Composites in Special Environments Key Laboratory Harbin Institute of TechnologyHarbin150001China China Ship Scientific Research Center Wuxi214082China School of Aeronautics and Astronautics Zhejiang UniversityHangzhou310027China College of Control Science and Engineering Zhejiang UniversityHangzhou310027China

In ship engineering,the prediction of vertical bending moment(VBM)and total longitudinal stress(TLS)during ship navigation is of utmost *** this work,we propose a new prediction paradigm,the multi-fidelity regression model based on multi-fidelity data and artificial neural network(MF-ANN).Specifically,an ANN is used to learn the fundamental physical laws from low-fidelity data and construct an initial input-output *** predicted values of this initial model are of low accuracy,and then the high-fidelity data are utilized to establish a correction model that can correct the low-fidelity prediction ***,the overall accuracy of prediction can be improved *** feasibility of the multi-fidelity regression model is demonstrated by predicting the VBM,and the robustness of the model is evaluated at the same *** prediction of TLS on the deck indicates that just a small amount of high-fidelity data can make the prediction accuracy reach a high level,which further illustrates the validity of the proposed MF-ANN.

关键词： Artificial neural network multi-fidelity vertical bending moment total longitudinal stress

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RAISE:A Resilient Anonymous Information Sharing Environment

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Computer Modeling in Engineering & sciences 2023年第12期137卷 2743-2759页

作者： Ning Hu Ling Liu Xin Liu Kaijun Wu Yue Zhao Cyberspace Institute of Advanced Technology Guangzhou UniversityGuangzhou510006China Science and Technology on Communication Security Laboratory The 30th Research Institute of China Electronics Technology Group CorporationChengdu610041China College of Computer Engineering and Applied Math Changsha UniversityChangsha410022China

With the widespread application of cloud computing and network virtualization technologies,more and more enterprise applications are directly deployed in the ***,the traditional TCP/IP network transmission model does not fully consider the information security issues caused by the uncontrollable internet *** security communication solutions represented by encrypted virtual private networks(VPN)are facing multiple security *** fact,during the communication process,the user application needs to protect not only the content of the communication but also the behavior of the communication,such as the communication relationship,the communication protocol,and so *** by blockchain and software-defined networking technology,this paper proposes a resilient anonymous information sharing environment,*** RAISE system consists of user agents,a core switching network and a control cluster based on a consortium *** agents are responsible for segmenting,encrypting,and encapsulating user *** core switching network forwards user traffic according to the rules issued by the controller,and the controller dynamically calculates the forwarding rules according to the security *** from onion routing technology,RAISE adopts the controller to replace the onion routing model,which effectively overcomes the uncontrollability of *** dispersed computing model is introduced to replace the TCP/IP pipeline transmission models,which overcomes the problems of anti-tracking and traffic hijacking that cannot be solved by *** propose a blockchain control plane framework,design the desired consensus algorithmand deploy a RAISE systemconsisting of 150 nodes in an internet *** experimental results show that the use of blockchain technology can effectively improve the reliability and security of the control *** maintaining high-performance network transmission,it further provides network communicatio

关键词： Software-defined anonymous communication network blockchain network communication security

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Progress in Nb-Si ultra-high temperature structural materials:A review

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Journal of Materials science & technology 2023年第18期149卷 127-153页

作者： Wei Liu Shuai Huang Chengtong Ye Lina Jia Yongwang Kang Jiangbo Sha Bingqing Chen Yu Wu Huaping Xiong 3D Printing Research and Engineering Technology Center Beijing Institute of Aeronautical MaterialsBeijing 100095China School of Materials Science and Engineering Beihang UniversityBeijing 100191China Science and Technology on Advanced High Temperature Structural Materials Laboratory Beijing Institute of Aeronautical MaterialsBeijing 100095China

Nb-Si based alloys have the greatest potential to replace nickel-based superalloys and become a new gen-eration ultra-high temperature structural material with service temperature of 1200-1400℃ due to their high melting point,high stiffness,low density,and attractive specific mechanical properties at elevated *** article reviewed the recent progress in the development of Nb-Si based refractory *** attention was paid to the property characteristics,preparation techniques,alloying effects,oxidation resistance and fabrication of Nb-Si based alloy ***,the trend of develop-ment in the future was forecasted,including:Optimization of the composition and microstructure of Nb-Si based alloys to achieve a balance of mechanical properties;Comprehensive properties evaluation for Nb-Si based alloys to accumulate sufficient data for engineering applications;Development of practical preparation technology for Nb-Si based alloy components with complex shapes;New multilayer compos-ite coatings for Nb-Si based alloy;Joining technology of Nb-Si alloy to itself and to superalloy.

关键词： Nb-Si based alloys Alloying Mechanical property Fracture toughness Oxidation behavior Coating

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Micropatterned composite membrane guides oriented cell growth and vascularization for accelerating wound healing

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Regenerative Biomaterials 2023年第1期10卷 344-353页

作者： Jiaqi Li Xulong Liu Weiyong Tao Yan Li Yingying Du Shengmin Zhang Advanced Biomaterials and Tissue Engineering Center Huazhong University of Science and TechnologyWuhan 430074China NMPA Research Base of Regulatory Science for Medical Devices&Institute of Regulatory Science for Medical Devices Huazhong University of Science and TechnologyWuhan 430074China Institute of Biomaterials and Medical Devices Wuhan Institute of Industrial Innovation and DevelopmentWuhan 430074China Department of Biomedical Engineering Huazhong University of Science and TechnologyWuhan 430074China

Skin defect is common in daily life,but repairing large skin defects remains a *** biomaterials to deliver biochemical or physical factors to promote skin tissue regeneration is of great significance for accelerating wound *** surface micropatterns on biomaterials could affect cell behavior and tissue ***,few studies have focused on the construction of wound healing biomaterials with surface micropatterns and their role in skin tissue *** the present study,gelatin-polycaprolactone/silk fibroin composite membranes with different micropatterns were fabricated by photolithography,including line,grid and plane *** vitro cell experiments demonstrated that the line micropattern on the composite membrane could guide cell-oriented growth,and more importantly,promote the expression of angiogenesis-related markers andα-smooth muscle actin(α-SMA)at both gene level and protein *** the rat full-thickness skin defect model,the composite membrane with line micropatterns increasedα-SMA production and neovascularization in wounds,leading to accelerated wound contraction and *** current study not only suggests that composite membranes with specific micropatterns can be promising wound repair materials but also provides new insights into the importance of biomaterial surface topology for tissue regeneration.

关键词： topology cell behavior wound healing gelatin polymer biomaterials

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Dual-enhancement of chromaticity and thermal stability:In-situ synthesis of core-shell γ-Ce_(2)S_(3) @CePO_(4) configuration

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Journal of Rare Earths 2022年第5期40卷 800-806,I0005页

作者： Kanglong Hui Wei Dong Jipeng Fu Mingxue Tang Qi Wei Chengyu Li Hongjie Zhang Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022China Center for High Pressure Science and Technology Advanced Research Beijing 100094China Institute of Optoelectronic Materials and Devices China Jiliang UniversityHangzhou 310018China College of Materials Science and Engineering BeijingUniversity of TechnologyBeijing 100124China

Non-toxic rare earth(RE) composite materials are promising and active in optoelectronic fields,such as *** this work,Na ions doped γ-Ce_(2) S_(3) pigments were synthesized by solid-phase vulcanization and followed by in-situ synthesis to prepare an outer layer of CePO_(4) *** characterizations of X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),X-ray photoelectron spectroscopy(XPS),solid state nuclear magnetic resonance(NMR) indicate that Na-dopedγ-Ce_(2) S_(3) and CePO_(4) uniformly and tightly coated core-shell structure was successfully *** thermogravimetric analysis(TG) and reflection spectrum(RS) reveal that the CePO_(4) coating significantly improves the colorant and thermal stability performance of γ-Ce_(2) S_(3) .The excellent color quality of γ-Ce_(2) S_(3) @CePO_(4)(L*=45.16,a*=55.94.b*=44.53) is achieved and the red color(L*=43.82,a*=49.79,b*=38.04) is still retained even if the sample is heated in air at 400℃ for 30 min.

关键词： γ-Ce_(2)S_(3) Red pigment Core-shell structure CePO_(4)coating Rare earths

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Formation of Periodic Surface Structures on Semiconductors under Mid-Infrared Free-Electron Laser Irradiation

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IEEJ Transactions on Fundamentals and Materials 2023年第10期143卷 320-324页

作者： Masuno, Shin-Ichiro Hashida, Masaki Zen, Heishun Advanced Research Center for Beam Science Institute for Chemical Research Kyoto University Gokasho Uji611-0011 Japan Research Institute of Science and Technology Tokai University 4-1-1 Kitakaname Hiratsuka259-1292 Japan Institute of Advanced Energy Kyoto University Gokasho Uji611-0011 Japan

In understanding the formation mechanism of laser-induced periodic surface structures (LIPSS), the dependence of the LIPSS formation threshold fluence F// on the material properties is crucial. In this work, the LIPSS generated upon the irradiation of various semiconductor materials with a train of 11.4 µm femtosecond laser pulses were examined. The laser source was a Midinfrared free-electron laser (MIR-FEL). Eight semiconductor substrates (i.e., Si, Ge, ZnO, SiC-4H, GaP, GaN, CdTe, and SiO2) were used as the targets. On Si, Ge, SiC-4H, and GaN, the LIPSS were oriented parallel to the MIR-FEL polarization with interspaces of 1/8 to 1/4 of the MIR-FEL wavelength λFEL. These interspaces tended to match the wavelength of the second harmonic of the MIR-FEL light propagating in the substrates. The obtained F// were relatively correlated with the bandgap energies of materials, as were those for near-infrared femtosecond lasers. Another type of LIPSS oriented perpendicular to the MIR-FEL polarization with interspaces of λFEL to λFEL/9 was also observed in the same spot on SiC-4H or GaN at higher fluences than only //-LIPSS was formed. © 2023 The Institute of Electrical Engineers of Japan.

关键词： II-VI semiconductors

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Demonstration of a Gel-Polymer Electrolyte-Based Electrochromic Device Outperforming Its Solution-Type Counterpart in All Merits: Architectural Benefits of CeO2 Quantum Dot and Nanorods

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ACS applied Materials and Interfaces 2024年第4期16卷 4958-4974页

作者： Silori, Gaurav Kumar Thoka, Subashchandrabose Ho, Kuo-Chuan Department of Chemical Engineering National Taiwan University Taipei10617 Taiwan Institute of Polymer Science and Engineering National Taiwan University Taipei10617 Taiwan Advanced Research Center for Green Materials Science and Technology National Taiwan University Taipei10617 Taiwan

For years, solution-type electrochromic devices (ECDs) have intrigued researchers’ interest and eventually rendered themselves into commercialization. Regrettably, challenges such as electrolyte leakage, high flammability, and complicated edge-encapsulation processes limit their practical utilization, hence necessitating an efficient alternate. In this quest, although the concept of solid/gel-polymer electrolyte (SPE/GPE)-based ECDs settled some issues of solution-type ECDs, an array of problems like high operating voltage, sluggish response time, and poor cycling stability have paralyzed their commercial applicability. Herein, we demonstrate a choreographed-CeO2-nanofiller-doped GPE-based ECD outperforming its solution-type counterpart in all merits. The filler-incorporated polymer electrolyte assembly was meticulously weaved through the electrospinning method, and the resultant host was employed for immobilizing electrochromic viologen species. The filler engineering benefits conceived through the tuned shape of CeO2 nanorod and quantum dots, along with the excellent redox shuttling effect of Ce3+/Ce4+, synchronously yielded an outstanding class of GPE, which upon utilization in ECDs delivered impressive electrochromic properties. A combination of features possessed by a particular device (QD-NR/PVDF-HFP/IL/BzV-Fc ECD) such as exceptionally low driving voltage (0.9 V), high transmittance change (ΔT, ∼69%), fast response time (∼1.8 s), high coloration efficiency (∼339 cm2/C), and remarkable cycling stability (∼90% ΔT-retention after 25,000 cycles) showcased a striking potential in the yet-to-realize market of GPE-based ECDs. This study unveils the untapped potential of choreographed nanofillers that can promisingly drive GPE-based ECDs to the doorstep of commercialization. © 2024 The Authors. Published by American Chemical Society.

关键词： Cerium oxide

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New measurement of ^(63)Cu(γ,n)^(62)Cu cross-section using quasi-monoenergeticγ-ray beam

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Nuclear science and Techniques 2025年第2期36卷 131-140页

作者： Zhi-Cai Li Zi-Rui Hao Qian-Kun Sun Yu-Long Shen Long-Xiang Liu Hang-Hua Xu Yue Zhang Pu Jiao Meng-Die Zhou Yu-Xuan Yang Sheng Jin Kai-Jie Chen Zhen-Wei Wang Shan Ye Xin-Xiang Li Chun-Wang Ma Hong-Wei Wang Gong-Tao Fan Wen Luo School of Nuclear Science and Technology University of South ChinaHengyang 421001China Shanghai Advanced Research Institute Chinese Academy of SciencesShanghai 201210China Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China University of Chinese Academy of Science Beijing 100049China School of Physics Henan Normal UniversityXinxiang 453007China China Institute of Atomic Energy Beijing 102413China Institute of Nuclear Science and Technology Henan Academy of SciencesZhengzhou 450046China

We present new data on the^(63)Cu(γ,n)cross-section studied using a quasi-monochromatic and energy-tunableγbeam produced at the Shanghai Laser Electron Gamma Source to resolve the long-standing discrepancy between existing measurements and evaluations of this *** an unfolding iteration method,^(63)Cu(γ,n)data were obtained with an uncertainty of less than 4%,and the inconsistencies between the available experimental data were ***γ-ray strength function of^(63)Cu(γ,n)was successfully extracted as an experimental *** further calculated the cross-section of the radiative neutron capture reaction^(62)Cu(n,γ)using the TALYS *** calculation method enables the extraction of(n,γ)cross-sections for unstable nuclides.

关键词： ^(63)Cu(γ n)reaction Cross-section data Quasi-monochromaticbeam Radiative neutron capture reaction

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