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Multifunction Zno/carbon hybrid nanofiber mats for organic dyes treatment via photocatalysis with enhanced solar-driven evaporation

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Frontiers of Materials Science 2022年第4期16卷 93-104页

作者： wenxin wang Yang CHEN Ning wang Zhiqiang DU Martin JENSEN Zihan AN Xianfeng LI State Key Laboratory of Separation Membranes and Membrane Processes Tianjin Municipal Key Lab of Advanced Energy Storage Material and DevicesSchool of Material Science and EngineeringTiangong UniversityTianjin 300387China Department of Chemistry and Bioscience Aalborg UniversityDK-9220 AalborgDenmark The Institute of Seawater Desalination and Multipurpose Utilization(MNR) Tianjin 300192China

ZnO-based photocatalytic materials have received widespread attention due to their usefulness than other photocatalytic materials in organic dye wastewater treatment.However,its photocatalytic efficiency and surface stability limit further applicability.This paper uses a one-step carbonization method to prepare multifunctional ZnO/carbon hybrid nanofiber mats.The carbonization creates aπ-conjugated carbonaceous structure of the mats,which prolongs the electron recovery time of ZnO nanoparticles to yield improved photocatalytic efficiency.Further,the carbonization reduces the fiber diameter of the carbon hybrid nanofiber mats,which quadruples the specific surface area to yield enhanced adsorption and photocatalytic performance.At the same time,the prepared nanofiber mats can increase the evaporation rate of water under solar irradiation to a level of 1.46 kg·m^(-2)·h^(-1)with an efficiency of 91.9%.Thus,the nanofiber mats allow the facile incorporation of photocatalysts to clean contaminated water through adsorption,photodegradation,and interfacial heat-assisted distillation mechanisms.

关键词： hybrid nanofiber mats zinc oxide photocatalysis solar-driven evaporation

Low-content Pt-triggered the optimized d-band center of Rh metallene for energy-saving hydrogen production coupled with hydrazine degradation

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Journal of Energy Chemistry 2023年第10期85卷 58-66,I0004页

作者： Qiqi Mao wenxin wang Kai Deng Hongjie Yu Ziqiang wang You Xu Xiaonian Li Liang wang Hongjing wang State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology College of Chemical EngineeringZhejiang University of TechnologyHangzhou 310014ZhejiangChina

Utilizing the hydrazine-assisted water electrolysis for energy-efficient hydrogen production shows a promising application, which relies on the development and design of efficient bifunctional electrocatalysts. Herein, we reported a low-content Pt-doped Rh metallene(Pt-Rhene) for hydrazine-assisted water electrolysis towards energy-saving hydrogen(H_(2)) production, where the ultrathin metallene is constructed to provide enough favorable active sites for catalysis and improve atom utilization.Additionally, the synergistic effect between Rh and Pt can optimize the electronic structure of Rh for improving the intrinsic activity. Therefore, the required overpotential of Pt-Rhene is only 37 mV to reach a current density of-10 mA cm^(-2) in the hydrogen evolution reaction(HER), and the Pt-Rhene exhibits a required overpotential of only 11 mV to reach a current density of 10 mA cm^(-2) in the hydrazine oxidation reaction(HzOR). With the constructed HER-HzOR two-electrode system, the Pt-Rhene electrodes exhibit an extremely low voltage(0.06/0.19/0.28 V) to achieve current densities of 10/50/100 mA cm^(-2) for energy-saving H_(2) production, which greatly reduces the electrolysis energy consumption. Moreover,DFT calculations further demonstrate that the introduction of Pt modulates the electronic structure of Rh and optimizes the d-band center, thus enhancing the adsorption and desorption of reactant/intermediates in the electrocatalytic reaction.

关键词： Pt-Rhene Synergistic effect Hydrogen evolution reaction Hydrazine oxidation reaction Energy-saving H_(2)production

Correlation Analysis of Wind Turbine Temperature Rise and Exergy Efficiency Based on Field-Path Coupling

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Energy Engineering 2023年第7期120卷 1603-1619页

作者： Caifeng Wen Qiang wang Yang Cao Liru Zhang wenxin wang Boxin Zhang Qian Du School of Energy and Power Engineering Inner Mongolia University of TechnologyHohhot010051China Key Laboratory of Wind Energy and Solar Energy Utilization Technology Ministry of EducationInner Mongolia University of TechnologyHohhot010051China School of Civil Engineering Inner Mongolia University of TechnologyHohhot010051China

To solve the problems of large losses and low productivity of permanent magnet synchronous generators used in wind power systems,the field-circuit coupling method is used to accurately solve the electromagnetic field and temperature field of the generator.The loss distribution of the motor is accurately obtained by considering the influence of external circuit characteristics on its internal physical field.By mapping the losses to the corresponding part of the three-dimensional finite element model of the motor,the temperature field is solved,and the global temperature distribution of the generator,considering the influence of end windings,is obtained.By changing the air gap length,permanent magnet thickness,and winding conductivity,the relationship between the loss,temperature rise,and exergy efficiency can be obtained.By optimizing the air gap length,permanent magnet thickness,and winding conductivity,the best configuration and material properties can improve the efficiency of the motor by up to 4%.

关键词： Wind turbine field-path coupling temperature rise distribution exergy efficiency

A Steganography Model Data Protection Method Based on Scrambling Encryption

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Computers, Materials & Continua 2022年第9期72卷 5363-5375页

作者： Xintao Duan Zhiqiang Shao wenxin wang En Zhang Dongli Yue Chuan Qin Haewoon Nam Henan Normal University Xinxiang453007China University of Shanghai for Science and Technology Shanghai200093China Hanyang University Ansan15588Korea

At present,the image steganography method based on CNN has achieved good results.The trained model and its parameters are of great value.Once leaked,the secret image will be exposed.To protect the security of steganographic network model parameters in the transmission process,an idea based on network model parameter scrambling is proposed in this paper.Firstly,the sender trains the steganography network and extraction network,encrypts the extraction network parameters with the key shared by the sender and the receiver,then sends the extraction network and parameters to the receiver through the public channel,and the receiver recovers them with the key after receiving,to achieve more secure secret communication.In this way,even if the network parameters are intercepted by a third party in the transmission process,the interceptor cannot extract the real secret information.In this paper,the classical Joseph algorithm is used as the scrambling algorithm to scramble the extracted network model parameters of the StegoPNet steganography network.The experimental results show that when the scrambled parameters are used for secret image extraction,a meaningless image independent of the secret image is extracted,it shows that this method can well protect the security of steganography network model.At the same time,this method also has good scalability,and can use a variety of different scrambling algorithms to scramble the parameters.

关键词： Information hiding steganography DCNN joseph scrambling

Highly branched poly(β-amino ester)s with narrow molecular weight distribution: Fractionation and gene transfection activity

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Chinese Chemical Letters 2023年第3期34卷 383-387页

作者： Chenfei wang Litao Sun Qiuxia Li Zhili Li Chengyuan Xu Xinyue Zhang Jianjun Shi Hao Zhou wenxin wang Dezhong Zhou School of Chemical Engineering and Technology Xi’an Jiaotong UniversityXi’an 710049China Key Laboratory of Water Pollution Treatment&Resource Reuse Hainan Normal UniversityHaikou 571158China State Key Laboratory of Medicinal Chemical Biology Tianjin Key Laboratory of Protein Scienceand College of Life SciencesNankai UniversityTianjin 300071China Department of Dermatology The Second Hospital Affiliated to Xi’an Jiaotong UniversityXi’an 710061China Charles Institute of Dermatology School of MedicineUniversity College DublinDublin 4Ireland

Highly branched poly(β-amino ester)s(HPAEs) have shown their great promise in gene delivery. However, their broad molecular weight distribution(MWD) poses an additional challenge to the mechanistic understanding of the influence of molecular weight(MW) on their gene transfection activity. Using a stepwise precipitation strategy, HPAEs were fractionated. It is shown that MW has a significant effect on the transfection activity and cytotoxicity of HPAEs. The intermediate MW mediates higher transfection efficiency while maintaining high cell viability. Mechanistic studies show that the intermediate MW confers stronger DNA binding affinity to HPAEs, leading to the formulation of polyplexes with a relatively smaller size and more positive zeta potential. This study not only suggests a simple strategy to fractionate HPAEs with narrow MWD but also provides new insights into understanding the structure-property relationship, which would facilitate the clinical translation of HPAEs in gene therapy.

关键词： Gene transfection Non-viral vector Highly branched poly(β-amino ester)s Fractionation Transfection activity

Crosstalk between IL-15Rα^(+)tumor-associated macrophages and breast cancer cells reduces CD8+T cell recruitment

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Cancer Communications 2022年第6期42卷 536-557页

作者： Wenlong Zhang Qing Zhang Nanfei Yang Qian Shi Huifang Su Tingsheng Lin Zhonglei He wenxin wang Hongqian Guo Pingping Shen State Key Laboratory of Pharmaceutical Biotechnology and Department of Urology Nanjing Drum Tower HospitalThe Affiliated Hospital of Nanjing University Medical SchoolSchool of Life SciencesNanjing UniversityNanjingJiangsu 210023P.R.China Department of Urology Drum Tower HospitalMedical School of Nanjing UniversityInstitute of UrologyNanjing UniversityNanjingJiangsu 210008P.R.China Shenzhen Research Institute of Nanjing University Shenzhen 518000China Department of Cellular and Integrative Physiology The University of Texas Health Science Center at San AntonioSan AntonioTexas 78229-3904USA Charles Institute of Dermatology School of MedicineUniversity College DublinDublin Eircode D04 V1W8Ireland

Background:Interleukin-15(IL-15)is a promising immunotherapeutic agent owing to its powerful immune-activating effects.However,the clinical benefits of these treatments are limited.Crosstalk between tumor cells and immune cells plays an important role in immune escape and immunotherapy drug resistance.Herein,this study aimed to obtain in-depth understanding of crosstalk in the tumor microenvironment for providing potential therapeutic strategies to prevent tumor progression.Methods:T-cell killing assays and co-culture models were developed to determine the role of crosstalk between macrophages and tumor cells in breast cancer resistant to IL-15.Western blotting,histological analysis,CRISPR-Cas9 knockout,multi-parameter flow cytometry,and tumor cell-macrophage co-injection mouse models were developed to examine the mechanism by which IL-15Rα^(+)tumor-associated macrophages(TAMs)regulate breast cancer cell resistance to IL-15.Results:We found thatmacrophages contributed to the resistance of tumor cells to IL-15,and tumor cells induced macrophages to express high levels of theαsubunit of the IL-15 receptor(IL-15Rα).Further investigation showed that IL-15Rα^(+)TAMs reduced the protein levels of chemokine CX3C chemokine ligand 1(CX3CL1)in tumor cells to inhibit the recruitment of CD8^(+)T cells by releasing the IL-15/IL-15Rαcomplex(IL-15Rc).Administration of an IL-15Rc blocking peptide markedly suppressed breast tumor growth and overcame the resistance of cancer cells to anti-programmed cell death protein 1(PD-1)antibody immunotherapy.Interestingly,Granulocyte-macrophage colony-stimulating factor(GMCSF)inducedγchain(γc)expression to promote tumor cell-macrophage crosstalk,which facilitated tumor resistance to IL-15.Additionally,we observed that the non-transcriptional regulatory function of hypoxia inducible factor-1alpha(HIF-1α)was essential for IL-15Rc to regulateCX3CL1 expression in tumor cells.Conclusions:The IL-15Rc-HIF-1α-CX3CL1 signaling pathway serves as a crosstalk between macrophages and tumor cells in the t

关键词： breast cancer CD8^(+)T-cell crosstalk IL-15Rα immunotherapy tumor microenvironment tumor-associated macrophages

17-18世纪中国赤壁赋瓷图像的欧洲传播与变异

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国际汉学 2024年第3期 94-103,158页

作者：王文欣香港故宫文化博物馆中国

明代中晚期出现一类绘东坡夜游赤壁图像并题写长篇《赤壁赋》文字的日用瓷,这类为本土市场烧制的瓷器进入了外销欧洲及世界各地的商品序列。本文将赤壁赋瓷及其图像置于跨文化交流语境中,结合存世器物、书籍插图、考古报告、收藏机构著... 详细信息

明代中晚期出现一类绘东坡夜游赤壁图像并题写长篇《赤壁赋》文字的日用瓷,这类为本土市场烧制的瓷器进入了外销欧洲及世界各地的商品序列。本文将赤壁赋瓷及其图像置于跨文化交流语境中,结合存世器物、书籍插图、考古报告、收藏机构著录等,讨论17—18世纪赤壁赋瓷图像传播与变异的路径,尤其关注这些传播与变异发生的历史语境,并揭示文化交流的想象与误读。

关键词：赤壁赋瓷图像传播图像变异跨文化交流

Elemene sensitizes pancreatic cancer cells to bortezomib by enhancing proteasome inhibition via molecular patch mechanism

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Signal Transduction and Targeted Therapy 2023年第3期8卷 924-927页

作者： Shurong Hou Zhenzhen Li Xiaoling Chen wenxin wang Ting Duan Louis Scampavia Yaxia Yuan Timothy P.Spicer Xiabin Chen Tian Xie School of Pharmacy Key Laboratory of Elemene Class Anti-Cancer Chinese MedicinesEngineering Laboratory of Development and Application of Traditional Chinese MedicinesCollaborative Innovation Center of Traditional Chinese Medicines of Zhejiang ProvinceHangzhou Normal UniversityHangzhouZhejiang 311121China Department of Pharmacology School of PharmacyNanjing University of Chinese MedicineNanjingJiangsu 210023China UF Scripps Molecular Screening Center Department of Molecular MedicineUF Scripps Biomedical ResearchJupiterFL 33458USA Department of Biochemistry and Structural Biology University of Texas Health Science Center at San AntonioSan AntonioTX 78229USA

Dear Editor,Pancreatic cancer*is one of the deadliest cancers,with an overall 5-year survival rate of less than 10%unchanged over the last 40 years.Approximately 80-85%of patients are diagnosed as advanced stage,which are not eligible for curative surgery.1 Therapeutic options for advanced pancreatic cancer patients are still chemotherapy drugs with limited outcomes to improve patient survival and life quality.

关键词： drugs chemotherapy curative

High-resolution structure-from-motion models covering 160 km-long surface ruptures of the 2021 M_(W)7.4 Madoi earthquake in northern Qinghai-Tibetan Plateau

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Earthquake Research Advances 2022年第2期2卷 38-48页

作者： Jing Liu-Zeng Wenqian Yao Xiaoli Liu Yanxiu Shao wenxin wang Longfei Han Yan wang Xianyang Zeng Jinyang Li Zijun wang Zhijun Liu Hongwei Tu Institute of Surface-Earth System Science School of Earth System ScienceTianjin UniversityTianjin300072China State Key Laboratory of Earthquake Dynamics Institute of GeologyChina Earthquake AdministrationBeijing100029China Key Laboratory of Earthquake Geodesy Institute of SeismologyChina Earthquake AdministrationWuhan430071China Earthquake Agency of Qinghai Province Xining810001China

The May 222021 M_(W)7.4 Madoi,Qinghai,China earthquake presented a rare opportunity to apply the modern unmanned aerial vehicle(UAV)photography method in extreme altitude and weather conditions to image surface ruptures and near-field effects of earthquake-related surface deformations in the remote Tibet.High-resolution aerial photographs were acquired in the days immediately following the mainshock.The complex surface rupture patterns associated with this event were covered comprehensively at 3-6 cm resolution.This effort represents the first time that an earthquake rupture in the interior of the Qinghai-Tibetan Plateau has been fully and systematically captured by such high-resolution imagery,with an unprecedented level of detail,over its entire length.The dataset has proven valuable in documenting subtle and transient rupture features,such as the significant mole-tracks and opening fissures,which were ubiquitous coseismically but degraded during the subsequent summer storm season.Such high-quality imagery also helps to document with high fidelity the fractures of the surface rupture zone(supplements of this paper),the pattern related to how the faults ruptured to the ground surface,and the distribution of off-fault damage.In combination with other ground-based mapping efforts,the data will be analyzed in the following months to better understand the mechanics of earthquake rupture related to the fault zone rheology,rupture dynamics,and frictional properties along with the fault interface.

关键词： UAV photography Earthquake surface rupture Structure-from-Motion 2021 M_(W)7.4 Madoi earthquake