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Tunable structural coloration of ultrathin zirconia nanotubes film

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Rare Metals 2023年第10期42卷 3304-3310页

作者： Xi-di sun Hui-Wen Yu Cheng-Yan Zhao Jing Zhang Yi Shi Li-Jia Pan Collaborative Innovation Center of Advanced Microstructures School of Electronic Science and EngineeringNanjing UniversityNanjing210093China CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Micro-Nano Energy and SensorBeijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing100083China

Zirconium(Zr) is a rare metal widely used in aero space and military ***,its single color does not meet the requirements of camouflage and ***,a series of ultrathin structural colorations of Zr by coating it with a on... 详细信息

关键词： structural film coating

Integrated identification of growth pattern and taxon of bacterium in gut microbiota via confocal fluorescence imaging‐oriented single‐cell sequencing

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mLife 2022年第3期1卷 350-358页

作者： Juan Gao di sun Bei Li Chaoyong Yang Wei Wang Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine Institute of Molecular MedicineRenji HospitalShanghai Jiao Tong University School of MedicineShanghaiChina State Key Laboratory of Applied Optics Changchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of SciencesChangchunChina The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation Key Laboratory for Chemical Biology of Fujian Province State Key Laboratory of Physical Chemistry of Solid SurfacesDepartment of Chemical BiologyXiamen UniversityCollege of Chemistry and Chemical EngineeringXiamenChina

Despite the fast progress in our understanding of the complex functions of gut microbiota,it is still challenging to directly investigate the in vivo microbial activities and processes on an individual cell *** gain knowledge of the indigenous growth/division patterns of the diverse mouse gut bacteria with a relatively high throughput,here,we propose an integrative strategy,which combines the use of fluorescent probe labeling,confocal imaging with single‐cell sorting,and *** gut bacteria sequentially labeled by two fluorescent D‐amino acid probes in vivo were first imaged by confocal microscopy to visualize their growth patterns,which can be unveiled by the distribution of the two fluorescence signals on each *** cells of interest on the imaging slide were then sorted using a laser ejection equipment,and the collected cells were then sequenced individually to identify their *** strategy allows integrated acquirement of the growth pattern knowledge of a variety of gut bacteria and their genomic information on a single‐cell basis,which should also have great potential in studying many other complex bacterial systems.

关键词： bacterial growth pattern confocal imaging fluorescent D‐amino acid probe in vivo labeling single‐cell sequencing

Triboelectric nanogenerator hybrid array driven by multiform natural energies and its applications in self-powered cathodic protection

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Science China(Technological Sciences) 2024年第3期67卷 878-890页

作者： sun Weixiang YANG di LUO Ning LI Hao WANG DaoAi School of Materials Science and Engineering Shandong University of Science and TechnologyQingdao 266590China State Key Laboratoryof Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China Qingdao Center of Resource Chemistry and New Materials Qingdao 266100China

In view of the increasing energy shortage and environmental pollution, the collection of friction charges to achieve the conversion of various natural energies and provide in-situ cathodic protection for metals is a significant challenge. Here, we designed a dual device-structure TENG composite array with the triboelectric layer of linear siloxane-modified polyurethane(PU) coating. This array could achieve a comprehensive collection for multiple forms of nature energy and cathodic protection of metals in multi-weather conditions. For one thing, the wave-mode TENG based on tanker structure could collect wave energy and showed the output performance with a short-circuit current of 15.5 μA. For another thing, the droplet-mode TENG based on arc-shaped surface structure could collect raindrop kinetic energy and showed the output performance with a short-circuit current of 16.3 μA. Notably, the parallel array of wave-mode TENG(W-TENG) and droplet-mode TENG(D-TENG) could simultaneously collect wave energy and raindrop kinetic energy, which showed a short-circuit current of 30.7 μA. Besides, a selfpowered a cathodic protection system powered by the dual structure TENG array is assembled and the open-circuit potential drop of the carbon steel connected with the TENG array is about 450 mV. Compared with cathodic protection system powered by single structure TENG, the composite array could provide more effective corrosion resistance for marine equipment in rainy weather. Due to the characteristic for comprehensive collection of nature energy, the anti-corrosion system supplied by TENG parallel array possesses great application potential in the all-weather corrosion protection of metal machinery under complex marine conditions.

关键词： triboelectric nanogenerator hybrid structure array siloxane-modified polyurethane cathodic protection

HASTY moves to chromatin for miRNA production

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Molecular Plant 2021年第3期14卷 364-365页

作者： di sun Xiuren Zhang Department of Biochemistry and Biophysics Texas A&M UniversityCollege StationTX 77843USA

MicroRNAs(miRNAs)have been well appreciated for their critical roles in regulating various biological processes in eukaryotes since the initial discovery of these tiny molecules in *** factory for miRNAs is located inside the nucleus,whereas their workplace is the ***,the prompt transport of miRNAs from nucleus to cytoplasm is essential for their proper *** metazoans,the commitment is carried out by Exportin 5(EXP5/XPO5),the nuclear exporter of miRNA precursors(pre-miRNAs)(Yi et al.,2003).

关键词： al. Export prompt

临界性高血压伴焦虑状态的中西医机制及“形神并调”治疗原则

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实用心脑肺血管病杂志 2024年第7期32卷 93-96页

作者：逯晓阳刘思琛孙迪张笑霄王擎擎姚魁武中国中医科学院广安门医院推拿科北京市100053 中国中医科学院广安门医院心血管科北京市100053 中国中医科学院眼科医院内科北京市100040

近年来随着人们生活方式不断改变,临界性高血压伴焦虑状态已成为威胁人们健康的疾病,并受到了广泛关注。许多医家在治疗高血压等心血管疾病的同时会兼顾精神心理问题,但缺乏理论支持。根据临界性高血压伴焦虑状态的临床表现其当属“形... 详细信息

近年来随着人们生活方式不断改变,临界性高血压伴焦虑状态已成为威胁人们健康的疾病,并受到了广泛关注。许多医家在治疗高血压等心血管疾病的同时会兼顾精神心理问题,但缺乏理论支持。根据临界性高血压伴焦虑状态的临床表现其当属“形神”同病。基于此,本文主要论述了临界性高血压伴焦虑状态的中西医机制、形神一体与临界性高血压伴焦虑状态的关系及临界性高血压伴焦虑状态的“形神并调”治疗原则,并提出了“形神失常”“肝脾不和”为临界性高血压伴焦虑状态的主要病机,在临证遣方时应“形神并调”,以调和肝脾为主。

关键词：高血压前期临界性高血压焦虑 “形神并调”

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Electricity Theft Detection Method Based on Ensemble Learning and Prototype Learning

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Journal of Modern Power Systems and Clean Energy 2024年第1期12卷 213-224页

作者： Xinwu sun Jiaxiang Hu Zhenyuan Zhang di Cao Qi Huang Zhe Chen Weihao Hu the School of Mechanical and Electrical Engineering University of Electronic Science and Technology of ChinaChengduChina Southwest University of Science and TechnologyChengduChina

With the development of advanced metering infrastructure(AMI),large amounts of electricity consumption data can be collected for electricity theft ***,the imbalance of electricity consumption data is violent,which makes the training of detection model *** this case,this paper proposes an electricity theft detection method based on ensemble learning and prototype learning,which has great performance on imbalanced dataset and abnormal data with different abnormal *** this paper,convolutional neural network(CNN)and long short-term memory(LSTM)are employed to obtain abstract feature from electricity consumption *** calculating the means of the abstract feature,the prototype per class is obtained,which is used to predict the labels of unknown *** the meanwhile,through training the network by different balanced subsets of training set,the prototype is *** with some mainstream methods including CNN,random forest(RF)and so on,the proposed method has been proved to effectively deal with the electricity theft detection when abnormal data only account for 2.5%and 1.25%of normal *** results show that the proposed method outperforms other state-of-the-art methods.

关键词： Electricity theft detection ensemble learning prototype learning imbalanced dataset deep learning abnormal level

Anion competition for Li^(+)solvated coordination environments in poly(1,3 dioxolane)electrolyte to enable high-voltage lithium metal solid-state batteries

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Journal of Energy Chemistry 2024年第9期96卷 633-641页

作者： Qiujun Wang Yanqiang Ma Xiaomeng Jia di Zhang Zhaojin Li Huilan sun Qujiang sun Bo Wang Li-Zhen Fan Hebei Key Laboratory of Flexible Functional Materials School of Materials Science1nd EngineeringHebei University of Science1nd TechnologyShijiazhuang 050000HebeiChina Beijing Advanced Innovation Center for Materials Genome Engineering Institute of Advanced Materials1nd TechnologyUniversity of Science1nd Technology BeijingBeijing 100083China

Gel-based polymer electrolytes are limited by the polarity of the residual solvent,which restricts the coupling-breaking behaviour during Li^(+)conduction,resulting in the Li^(+)transport kinetics being greatly ***,we designed anion competitive gel polymer electrolyte(ACPE)by introducing lithium difluoro(oxalato)borate(LiDFOB)anion into the 1,3-dioxolane(DOL)in situ polymerisation *** enhances the ionic dipole interaction between Li^(+)and the solvent molecules and synergizes with Li^(+)across the solvation site of the polymer ethylene oxide(EO)unit,combination that greatly improves the Li^(+)transport *** a result,ACPE exhibits 1.12 mS cm^(−1)ionic conductivity and 0.75 Li^(+)transfer number at room ***,this intra-polymer solvation sheath allows preferential desolvation of DFOB−,which contributes to the formation of kinetically stable anion-derived interphase and effectively mitigates side *** results demonstrate that the assembled Li||NCM622 solid-state battery exhibits lifespan of over 300 cycles with average Coulombic efficiency of 98.8%and capacity retention of 80.3%.This study introduces a novel approach for ion migration and interface design,paving the way for high-safety and high-energy-density batteries.

关键词： Li-metal batteries Poly(1,3-dioxolane) In situ polymerization Solid-state polymer electrolytes Anion competition

Nanoimprint-induced strain engineering of two-dimensional materials

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Microsystems & Nanoengineering 2024年第2期10卷 323-332页

作者： Chuying sun Jianwen Zhong Zhuofei Gan Liyang Chen Chuwei Liang Hongtao Feng Zhao sun Zijie Jiang Wen-di Li The University of Hong Kong Hong KongChina

The high stretchability of two-dimensional(2D)materials has facilitated the possibility of using external strain to manipulate their ***,strain engineering has emerged as a promising technique for tailoring the performance of 2D materials by controlling the applied elastic strain *** various types of strain engineering methods have been proposed,deterministic and controllable generation of the strain in 2D materials remains a challenging ***,we report a nanoimprint-induced strain engineering(NISE)strategy for introducing controllable periodic strain profiles on 2D materials.A three-dimensional(3D)tunable strain is generated in a molybdenum disulfide(MoS_(2))sheet by pressing and conforming to the topography of an imprint *** strain profiles generated in MoS_(2)are demonstrated and verified by Raman and photoluminescence(PL)*** strain modulation capability of NISE is investigated by changing the imprint pressure and the patterns of the imprint molds,which enables precise control of the strain magnitudes and distributions in MoS_(2).Furthermore,a finite element model is developed to simulate the NISE process and reveal the straining behavior of MoS_(2).This deterministic and effective strain engineering technique can be easily extended to other materials and is also compatible with common semiconductor fabrication processes;therefore,it provides prospects for advances in broad nanoelectronic and optoelectronic devices.

关键词： strain dimensional molybdenum

Environmental characteristics of trace metals in seawater from the Ninety East Ridge in the Indian Ocean

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Journal of Oceanology and Limnology 2024年第4期42卷 1119-1129页

作者： Jingxi LI di ZHANG Fenghua JIANG Hong CHEN Wei CAO Chengjun sun Key Laboratory of Marine Eco-Environmental Science and Technology First Institute of OceanographyMinistry of Natural ResourcesQingdao 266061China College of Safety and Environmental Engineering Shandong University of Science and TechnologyQingdao 266590China Laoshan Laboratory of Marine Science and Technology Laboratory of Marine Drugs and Biological ProductsQingdao 266071China

The Ninety East Ridge in the Indian Ocean has complex and unique *** concentrations and distribution characteristics of 10 trace metals(V,Cr,Mn,Fe,Co,Ni,Cu,Cd,Pb,and U)in seawater from the Ninety East Ridge in the Indian Ocean were *** show that the average concentrations of different trace metals in all the collected seawater samples were 1.134μg/L for V,0.158μg/L for Cr,0.489μg/L for Mn,0.427μg/L for Fe,0.011μg/L for Co,0.395μg/L for Ni,0.403μg/L for Cu,0.097μg/L for Cd,0.139μg/L for Pb,and 3.470μg/L for *** in the horizontal and vertical distributions of all measured trace metals were revealed,and the occurrence of high concentrations was *** addition,the significant differences in the concentration distribution of different trace metals in seawater on both sides of the Ninety East Ridge present regional segmentation in the area for various trace metals in deep sea *** study provided basic data for future investigations on the environmental and ecological impact of trace metals in the Indian Ocean and the potential water mass transport mechanism.

关键词： trace metal environmental characteristic Ninety East Ridge seawater Indian Ocean