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Journal of Environmental Sciences 2024年第6期140卷 91-102页

作者： Ruxian Hou jiewen xiao Qian Wu Tianyu Zhang Qiang Wang Beijing Key Lab for Source Control Technology of Water Pollution College of Environmental Science and EngineeringBeijing Forestry UniversityBeijing 100083China Engineering Research Center for Water Pollution Source Control&Eco-remediation College of Environmental Science and EngineeringBeijing Forestry UniversityBeijing 100083China

CO_(2)hydrogenation to methanol has become one of the most promising ways for CO_(2)utilization,however,the CO_(2)conversion rate and methanol selectivity of this reaction still need to be improved for industrial *** we investigated the structure-activity relationship for CO_(2)conversion to methanol of In_(2)O_(3)-based catalysts by modulating morphology and decorating *** different Au/In_(2)O_(3)catalysts were prepared,their activity follow the sequence of Au/In_(2)O_(3)-nanosphere(Au/In_(2)O_(3)-NS)>Au/In_(2)O_(3)-nanoplate(Au/In_(2)O_(3)-NP)>Au/In_(2)O_(3)-hollow microsphere(Au/In_(2)O_(3)-HM).Au/In_(2)O_(3)-NS exhibited the best performance with good CO_(2)conversion of 12.7%,high methanol selectivity of 59.8%,and large space time yield of 0.32 g CH_(3)OH/(hr·gcat)at 300℃.The high performance of Au/In_(2)O_(3)-NS was considered as the presence of *** contributes to the creation of more surface oxygen vacancies,which further promoted the CO_(2)adsorption and facilitated CO_(2)activation to form the formate intermediates towards *** work clearly suggests that the activity of In_(2)O_(3)catalyst can be effective enhanced by structure engineering and Au decorating.

关键词： CO_(2)hydrogenation Methanol Au/In_(2)O_(3) Morphology Oxygen vacancies

Defect-rich Mg-Al MMOs supported TEPA with enhanced charge transfer for highly efficient and stable direct air capture

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Journal of Energy Chemistry 2022年第5期31卷 401-410页

作者： Meng Zhao jiewen xiao Wanlin Gao Qiang Wang College of Environmental Science and Engineering Beijing Forestry UniversityBeijing 100083China

Due to the advantages of low energy consumption and high CO_(2) selectivity, the development of solid amine-based materials has been regarded as a hot research topic in the field of DAC for the past *** adsorption capacity and stability over multiple cycles have been the top priorities for evaluation of practical application value. Herein, we synthesized a novel DAC material by loading TEPA onto defect-rich Mg_(0.55)Al-O MMOs with enhanced charge transfer effect. The optimal Mg_(0.55)Al-O-TEPA67% demonstrates the highest CO_(2)uptake of(3.0 mmol g^(-1)) and excellent regenerability, maintaining ~90% of the initial adsorption amount after 80 adsorption/desorption cycles. The in situ DRIFTS experiments suggested the formation of bicarbonate species under wet conditions. DFT calculations indicated that the stronger bonding between Mg_(0.55)Al-O support and solid amine was caused by the abundance of oxygen defects on MMOs confirmed by XPS and ESR, which favors the charge transfer between the support and amine,resulting in intense interaction and excellent regenerability. This work for the first time conducted comprehensive and systematic investigation on the stabilization mechanism for MMOs supported solid amine adsorbents with highest uptake and superior cyclic stability in depth, which is different from the most popular SiO_(2)-support, thus providing facile strategy and comprehensive theoretical mechanism support for future research about DAC materials.

关键词： Direct air capture Solid amine-based materials Mixed metal oxides Oxygen defects Charge transfer effect

公共交通型自动扶梯梯级下陷保护装置现场检验探讨

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中国特种设备安全 2024年第6期40卷 36-39,47页

作者：段路奇曹智超肖杰文湖南省特种设备检验检测研究院娄底分院娄底417500 湖南省特种设备检验检测研究院长沙分院长沙410117

本文分析了在现场检验中发现的某型号公共交通型自动扶梯梯级下陷保护装置的设计缺陷。以现场测试和检验为基础,结合标准和检规对梯级下陷保护装置的要求,从梯级下陷保护装置的工作原理出发,指出了该类型产品在实际使用过程中存在监测... 详细信息

本文分析了在现场检验中发现的某型号公共交通型自动扶梯梯级下陷保护装置的设计缺陷。以现场测试和检验为基础,结合标准和检规对梯级下陷保护装置的要求,从梯级下陷保护装置的工作原理出发,指出了该类型产品在实际使用过程中存在监测盲区的设计缺陷,提出了增加梯级下陷保护装置检测打杆数量的整改方案,确保自动扶梯的安全可靠使用。

关键词：公共交通型自动扶梯梯级下陷保护装置主轮辅轮

Surface modification of Cu_(2)O with stabilized Cu^(+) for highly efficient and stable CO_(2) electroreduction to C_(2+) chemicals

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Journal of Energy Chemistry 2023年第9期84卷 277-285页

作者： Ziyu Zhou Shuyu Liang jiewen xiao Tianyu Zhang Min Li Wenfu Xie Qiang Wang Beijing Key Lab for Source Control Technology of Water Pollution College of Environmental Science and EngineeringBeijing Forestry UniversityBeijing 100083China Engineering Research Center for Water Pollution Source Control&Eco-remediation College of Environmental Science and EngineeringBeijing Forestry UniversityBeijing 100083China

Copper(Cu)-based materials are known as the most attractive catalysts for electrochemical carbon dioxide reduction reaction(CO_(2)RR),especially the Cu^(+) species(e.g.,Cu_(2)O),which show excellent capability for catalyzing CO_(2) to C_(2+) chemicals because of their unique electronic ***,the active Cu^(+) species are prone to be reduced to metallic Cu under an electroreduction environment,thus resulting in fast deactivation and poor ***,we developed an advanced surface modification strategy to maintain the active Cu^(+) species via assembling a protective layer of metal-organic framework(copper benzenetricarboxylate,CuBTC) on the surface of Cu_(2)O octahedron(Cu_(2)O@CuBTC).It's encouraging to see that the Cu_(2)O@CuBTC heterostructure outperforms the bare Cu_(2)O octahedron in catalyzing CO_(2) to C_(2+) chemicals and dramatically enhances the ratio of C_(2)H_(4)/CH_(4) products.A systematic study reveals that the introduced CuBTC shell plays a critical role in maintaining the active Cu^(+) species in Cu_(2)O@CuBTC heterostructure under reductive *** work offers a practical strategy for improving the catalytic performance of CO_(2)RR over copper oxides and also establishes a route to maintain the state of valence-sensitive catalysts.

关键词： CO_(2)RR Copper Oxide Metal-organic Framework Core-shell Structure C_(2+)Chemicals

Interface effect on promoting reversible conversion for Na2Se in the metal selenide as sodium ion batteries

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Journal of Energy Chemistry 2020年第5期29卷 8-12页

作者： Tianshuai Wang jiewen xiao Xiyu Cao Yanchen Fan Qianfan Zhang School of Materials Science and Engineering Beihang UniversityBeijing 100091China

The rapid development of modern electronic devices has promoted more research in the field of high energy-density storage devices[1].Lithium ion batteries(LIBs)have been widely used in electronic devices and hybrid el... 详细信息

关键词： Naion battery Graphene/Na2Se interface Reversible conversion reaction

Numerical simulation and parameter optimization of Coriolis force scale measurement process based on DEM

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Particuology 2024年第7期90卷 128-139页

作者： Haiting Liu Yong Yang Xiangliang Wang jiewen Deng Bingbing Wang School of Energy and Power Engineering Northeast Electric Power UniversityJilin132012China CNBM Hefei Mechanical&Electrical Engineering Technology Co.Ltd Hefei230051China

The Coriolis force method is a recently developed and highly regarded direct measurement technique that enables high-precision measurement of bulk *** operational parameters and variations thereof directly influence the measurement accuracy of the *** this study,a measurement correction coefficient is introduced to improve the calculation method for mass flow rate of the *** DEM is employed to simulate the motion of particle groups within the Coriolis force scale under different parameters,and the effects of various structural and operational parameters on the measurement results are *** research findings indicate that a lower rotational speed leads to more stable instantaneous measurement results,although the measurement error is relatively *** the rotational speed exceeds 300 rpm,the measurement error remains within 15%.For materials with a radius of 1–2 mm,the variation range of precision error is approximately 0.4%.Among the structural parameters,the radius of the measurement wheel has the most significant impact on the measurement results,wherein a larger measurement wheel radius corresponds to a smaller measurement *** horizontal angle of the blades follows as the next influential parameter,with a clockwise rotation and a horizontal angle of 30°resulting in a measurement error below 2%.

关键词： Parameter optimization Discrete element method Coriolis force scale Measurement error Numerical simulation

Sandwich-type composited solid polymer electrolytes to strengthen the interfacial ionic transportation and bulk conductivity for all-solid-state lithium batteries from room temperature to 120℃

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Journal of Energy Chemistry 2024年第8期95卷 288-295,I0007页

作者： jiewen Tan Zhen Wang Jiawu Cui Zhanhui Jia Wensheng Tian Chao Wu Chengxin Peng Chengyong Shu Kang Yang Wei Tang School of Chemical Engineering and Technology Xi'an Jiaotong UniversityXi'an 710049ShaanxiChina Center for Advancing Materials Performance from the Nanoscale(CAMP-Nano) State Key Laboratory for Mechanical Behavior of MaterialsXi'an Jiaotong UniversityXi'an 710049ShaanxiChina State Key Laboratory of Space Power-sources Technology Shanghai Institute of Space Power-SourcesShanghai 200245China School of Materials Science and Engineering University of Shanghai for Science and TechnologyShanghai 200093China Top-Energy Digital Manufacturing Technologies(Xi'an)Co. Ltd.Xi'an 710100ShaanxiChina

The insurmountable charge transfer impedance at the Li metal/solid polymer electrolytes(SPEs)interface at room temperature as well as the ascending risk of short circuits at the operating temperature higher than the melting point,dominantly limits their applications in solid-state batteries(SSBs).Although the inorganic filler such as CeO_(2)nanoparticle content of composite solid polymer electrolytes(CSPEs)can significantly reduce the enormous charge transfer impedance at the Li metal/SPEs interface,we found that the required content of CeO_(2)nanoparticles in SPEs varies for achieving a decent interfacial charge transfer impedance and the bulk ionic conductivity in *** this regard,a sandwich-type composited solid polymer electrolyte with a 10%CeO_(2)CSPEs interlayer sandwiched between two 50%CeO_(2)CSPEs thin layers(sandwiched CSPEs)is constructed to simultaneously achieve low charge transfer impedance and superior ionic conductivity at 30℃.The sandwiched CSPEs allow for stable cycling of Li plating and stripping for 1000 h with 129 mV polarized voltage at 0.1 mA cm^(-2)and 30℃.In addition,the LiFePO_(4)/Sandwiched CSPEs/Li cell also exhibits exceptional cycle performance at 30℃and even elevated120℃without short *** multi-layered CSPEs with optimized contents of the inorganic fillers can be an efficient method for developing all solid-state PEO-based batteries with high performance at a wide range of temperatures.

关键词： PEO-based solid electrolytes CeO_(2)nanoparticles Charge transfer impedance Sandwich-type composite electrolytes All-solid-state Li metal batteries

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阿尔茨海默病精准诊断的困境与综合考量

中华医学杂志 2024年第29期104卷 2683-2687页

作者：张杰文陈帅河南省人民医院(郑州大学人民医院)神经科郑州

阿尔茨海默病(AD)的临床表现和神经影像表现具有明显异质性。当前普遍可及的基于临床和影像诊断的AD存在不确定性。在靶向淀粉样蛋白单抗治疗时代, AD精准诊断的需求迫在眉睫。正电子发射断层扫描成像(PET)和脑脊液(CSF)检测可以有效反... 详细信息

阿尔茨海默病(AD)的临床表现和神经影像表现具有明显异质性。当前普遍可及的基于临床和影像诊断的AD存在不确定性。在靶向淀粉样蛋白单抗治疗时代, AD精准诊断的需求迫在眉睫。正电子发射断层扫描成像(PET)和脑脊液(CSF)检测可以有效反映AD的β-淀粉样蛋白和神经原纤维缠结病理, 有力提升了AD诊断的准确性。熟悉各种CSF和PET标志物在AD诊断/分期中的价值是临床应用生物标志物的前提。生物标志物的选用和结果诠释应充分结合痴呆患者的临床特征和结构影像, 同时应注意生物标志物反映的生物学分期和临床分期的匹配程度, 以期生物标志物在AD诊疗中发挥更多附加价值。

关键词：阿尔茨海默病生物标志物正电子发射断层扫描脑脊液

On-chip ultra-high rejection and narrow bandwidth filter based on coherency-broken cascaded cladding-modulated gratings

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Photonics Research 2024年第5期12卷 979-985页

作者： JINZHAO WANG TING LI YANG FENG jiewen LI WANXIN LI LUWEI DING YONG YAO JIANAN DUAN WEI LIU FENG HE YI ZOU xiaoCHUAN XU Guangdong Provincial Key Laboratory of Integrated Photonic-Electronic Chip Guangdong Provincial Key Laboratory of Aerospace Communication and Networking TechnologyHarbin Institute of TechnologyShenzhenShenzhen 518055China School of Information Science and Technology ShanghaiTech UniversityShanghai 201210China

Bragg filters are of essential importance for chip-scale photonic ***,the implementation of filters with sub-nanometer bandwidth and rejection beyond 70 dB is hindered by the high index contrast of the siliconon-insulator platform,which makes filters prone to fabrication *** this paper,we propose to combine coherency-broken cascading architecture and cladding modulation to circumvent the intrinsic *** cascading architecture effectively prevents the accumulation of phase errors,while the cladding modulation offers additional design freedom to reduce the coupling coefficient.A bimodal Bragg filter with a testingequipment-limited rejection level of 74 dB and a 40 dB bandwidth of 0.44 nm is experimentally *** minimum feature size is 90 nm,which significantly relieves the fabrication constraints.

关键词： filter cladding narrow

LncRNA ZFPM2-AS1 promotes phyllodes tumor progression by binding to CDC42 and inhibiting STAT1 activation

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Acta Pharmaceutica Sinica B 2024年第7期14卷 2942-2958页

作者： Shishi He Guowei Huang Rong Lei Rurong Jia Zhanghai He jiewen Chen Hongyan Huang Zixian Huang Ailifeire Yilihamu Xun Li Zilin Zhuang Mengjia Han Xueman Chen Di Huang Yan Nie Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation Guangdong-Hong Kong Joint Laboratory for RNA MedicineMedical Research CenterSun Yat-sen Memorial HospitalSun Yat-sen UniversityGuangzhou 510120China Breast Tumor Center Sun Yat-sen Memorial HospitalSun Yat-sen UniversityGuangzhou 510120China Department of Pathology Shantou University Medical CollegeShantou 515041China School of Basic Medical Science Southern Medical UniversityGuangzhou 510515China Department of Pathology Sun Yat-sen Memorial HospitalSun Yat-sen UniversityGuangzhou 510120China Department of Breast Medicine Affiliated Foshan Maternity and Child Healthcare HospitalSouthern Medical UniversityFoshan 528000China Department of Breast Surgery Zhujiang HospitalSouthern Medical UniversityGuangzhou 510282China Department of Oral and Maxillofacial Surgery Sun Yat-sen Memorial HospitalSun Yat-sen UniversityGuangzhou 510120China

Breast phyllodes tumor(PT)is a rare fibroepithelial neoplasm with potential malignant *** non-coding RNAs(lncRNAs)play multifaceted roles in various cancers,but their involvement in breast PT remains largely *** this study,microarray was leveraged for the first time to investigate the role of lncRNA in *** identified lncRNA ZFPM2-AS1 was significantly upregulated in malignant PT,and its overexpression endowed PT with high tumor grade and adverse ***,we elucidated that ZFPM2-AS1 promotes the proliferation,migration,and invasion of malignant PT in *** ZFPM2-AS1 through nanomaterial-mediated siRNA delivery in patient-derived xenograft(PDX)model could effectively inhibit tumor progression in ***,our findings showed that ZFPM2-AS1 is competitively bound to CDC42,inhibiting ACK1 and STAT1 activation,thereby launching the transcription of *** conclusion,our study provides evidence that ZFPM2-AS1 plays a pivotal role in the pathogenesis of breast PT,and suggests that ZFPM2-AS1 could serve as a prognostic indicator for patients with PT as well as a promising novel therapeutic target.

关键词： LncRNA Phyllodes tumor ZFPM2-AS1 Cell division cycle 42 Activated cdc42 kinase 1 Signal transducer and activator of transcription 1 TNF receptor superfamily member 19 Nano particles