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Printing perovskite and graphene parallel structure-based optical-mechanical sensors for human-machine interaction

Science China Technological Sciences 2025年

作者： Sisi CHEN jiemin zhang Nan CHENG Wenbo LI Jing LIU Hongfei XIE jie zhang Yueying CHENG Xiaotong ZHAO Meng SU Yanlin SONG Key Laboratory of Green Printing CAS Research/Education Center for Excellence in Molecular Sciences Institute of ChemistryChinese Academy of Sciences (ICCAS) University of Chinese Academy of Sciences Weiyang College Tsinghua University Department of Cardiovascular Surgery First Medical Center PLA General Hospital AECC Beijing Institute of Aeronautical Materials Beijing Institute of Graphene Technology Beijing Engineering Research Centre of Graphene Application School of Integrated Circuit & Beijing National Research Center for Information Science and Technology (BNRist) Tsinghua University

Surgical robots are designed to provide enhanced precision and dexterity compared to manual surgical procedures,which mainly rely on multimodal sensing technologies for the surgeon to seamlessly operate the robotic arms and *** with single-mode sensors, optical and mechanical bi-modal sensors provide improved precision, enhanced safety,and robustness of human-machine interaction systems. Here, the template-guided and pneumatic printing technologies are combined to construct perovskite and graphene parallel structures with both optical and mechanical sensing capabilities. The printed uniformly crystallized perovskite microstructure exhibits fast and sensitive photoelectric response characteristics,enabling shadow recognition functionality. The combination of graphene and elastic rubber endows the great printability to prepare parallel structures near the perovskite arrays for force sensing capabilities. Thus, the printed perovskite and graphene structures possess non-contact optical sensing capabilities to detect hand position by recognizing shadows between the hand and the sensor, as well as contact mechanical sensing capabilities to detect touch force applied by the hand. It provides a synergistic platform for real-time and multidimensional feedback to improve human-machine interaction.

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4种吡啶类除草剂对不同生长期薇甘菊防效评价

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广东农业科学 2013年第23期40卷 79-82页

作者：岳茂峰田兴山冯莉曹坳程张泰劼广东省农科院植物保护研究所/广东省植物保护新技术重点实验室广东广州510640 中国农科院植物保护研究所北京100193

为了筛选对不同生长期薇甘菊具有高效安全的除草剂，以常用除草剂41％草甘膦水剂（2250～9000g／hm^2）为对照，利用24％氨氯吡啶酸水剂（1125～3375ml/hm^2）、48％三氯吡氧乙酸EC（350～6255ml/hm^2）、75％二氯吡啶酸可溶性粒剂（134... 详细信息

为了筛选对不同生长期薇甘菊具有高效安全的除草剂，以常用除草剂41％草甘膦水剂（2250～9000g／hm^2）为对照，利用24％氨氯吡啶酸水剂（1125～3375ml/hm^2）、48％三氯吡氧乙酸EC（350～6255ml/hm^2）、75％二氯吡啶酸可溶性粒剂（134～240g／hm^2）和20％氯氟吡氧乙酸乳油（750～1050ml/hm^2）4种吡啶类除草剂对苗期、生长中期、成株期薇甘菊进行防除试验。防除试验完成后，将豆角、菜心、青瓜3种作物种植在喷施过4种药剂的土壤上观察其生长发育状况，以确定有无残留药害发生。结果表明，供试的4种除草剂中氨氯吡啶酸、三氯吡氧乙酸和氯氟吡氧乙酸对薇甘菊均具有良好的防效，对薇甘菊的株（盖度）防效和鲜重防效均可达到90％以上。其中氨氯吡啶酸和三氯吡氧乙酸对薇甘菊苗期、生长中期的防效与草甘膦相近，对成株期薇甘菊防效稍优于草甘膦。在喷施过氨氯吡啶酸的土壤上，豆角、菜心、青瓜均出现畸形，其他处理无异常变化。氨氯吡啶酸、三氯吡氧乙酸对薇甘菊具有良好的防除效果，在一定的生境中可代替草甘膦。由于氨氯吡啶酸在土壤中残留期较长，因而其应在农区慎用。

关键词：薇甘菊吡啶类除草剂防除效果

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30%烟嘧磺隆·莠去津·硝磺草酮可分散油悬浮剂对甜玉米田杂草的防效及安全性

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玉米科学 2020年第4期28卷 178-183页

作者：郭文磊冯莉崔烨吴丹丹张泰劼张纯田兴山广东省农业科学院植物保护研究所/广东省植物保护新技术重点实验室广州510640

研究30%烟嘧磺隆·莠去津·硝磺草酮可分散油悬浮剂在甜玉米田的应用效果,在甜玉米不同叶龄期开展田间试验,评价其对杂草的防除效果及对甜玉米的安全性。结果表明,30%烟嘧磺隆·莠去津·硝磺草酮可分散油悬浮剂在甜玉米3~4叶期或6~7叶... 详细信息

研究30%烟嘧磺隆·莠去津·硝磺草酮可分散油悬浮剂在甜玉米田的应用效果,在甜玉米不同叶龄期开展田间试验,评价其对杂草的防除效果及对甜玉米的安全性。结果表明,30%烟嘧磺隆·莠去津·硝磺草酮可分散油悬浮剂在甜玉米3~4叶期或6~7叶期施药,900~1575 g a.i./hm^2剂量范围内对甜玉米品种粤甜28安全,对玉米田常见杂草凹头苋、光头稗、马唐和香附子的防效及增产效果均显著高于对照药剂38%莠去津悬浮剂2160 g a.i./hm^2播后苗前处理。推荐30%烟嘧磺隆·莠去津·硝磺草酮可分散油悬浮剂在900~1350 g a.i./hm^2范围内,甜玉米3~5叶期茎叶喷雾使用。

关键词：甜玉米烟嘧磺隆莠去津硝磺草酮防效

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Constructing 2D bismuth-based heterostructure for highly efficient photocatalytic CO2 reduction

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Tungsten 2025年第1期7卷 71-79页

作者： Ruo-Hang Xu Hao-Yu Jiang Dan-Dan Cui Kun-Rong Du Hong-Run zhang Sheng-jie Xu Ya-Qi Li Zhi-Zhen Ren Liang Wang Wei-Chang Hao Yi Du School of Physics and BUAA-UOW Joint Research Centre Beihang University Shenzhen Institute of Beihang University Centre for Catalysis and Clean Energy School of Environment and Science Griffith University

Reforming carbon dioxide（CO2） into fuels and valuable chemicals using solar energy holds significant potential for emission reduction and addressing energy supply *** recombination of photocarriers remains a major obstacle,however,to enhancing solar energy conversion efficiency in the photocatalytic reaction *** two-dimensional materials,constructing heterogeneous structures has emerged as an effective strategy to enhance the separation of photoexcited carriers by leveraging the internal electric field at the heterogeneous ***,we present a facile strategy for preparing Bi4NbO8Br/Bi2WO6plate-on-plate Z-scheme junctions with a strong internal electric field by in situ *** unique heterostructure facilitates efficient separation and transport of photoexcited charges by harnessing the internal electric field induced by chemical bonding at the lateral ***,the Bi4NbO8Br/Bi2WO6heterostructure exhibits enhanced CO2photoreduction properties,along with a CO yield rate of approximately 35 μmol·g-1·h-1under full light *** work offers novel insights into the synthesis of unique hetero structures intended to enhance the efficiency of photocatalytic CO2reduction.

关键词： Bi4NbO8Br/Bi2WO6 CO2 reduction Heterostructures Photocatalysts

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A fast streptomycin sulfate sensing based on Nb2CTX functionalized titled fiber Bragg grating

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Optoelectronics Letters 2025年

作者： BI Mingpan LIU jie zhang Yuchen LI Xiaolan MIAO Yinping Tianjin Key Laboratory of Film Electronic & Communicate Devices，School of Integrated Circuit Science and Engineering，Tianjin University of Technology Key Laboratory of Quantum Optics and Intelligent Photonics， School of Science， Tianjin University of Technology

We proposed a fast and temperature self-compensation method to detect streptomycin sulfate aqueous solution concentration based on a 2D Nb2CTXMXene nanosheets functionalized tilted Bragg grating（N-TFBG）. The introduction of 2D Nb2CTXMXene nanosheets brought more than 100% increase in sensitivity and exhibited a high sensitivity of 253.8 pm/mg/mL and detection limit 80 μg/mL in range of 0.2-0.8 mg/mL. Due to high sensitivity and compact structure， N-TFBG sensor has a faster measure time than previous method; additionally， the sensor has simultaneous temperature measurement by detecting the cladding mode and the core mode resonance peak simultaneously. Our research will hopefully open a new research platform for online detection of streptomycin sulfate concentration.

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A Grid Cell Based Distribution Network Planning Method Adapting to the Increasing Permeability of Distributed Resources

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Dianwang Jishu/Power System Technology 2025年第1期49卷 306-315页

作者： Zhou, Yang Wang, Zhuding zhang, Man Yang, jie Shu, Dongsheng State Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing University Shapingba District Chongqing 400044 China Chongqing Electric Energy Star Inc Jiulongpo District Chongqing 400039 China Economic Research Institute of State Grid Hubei Electric Power Company Hubei Province Wuhan 430000 China

Based upon the existing research findings of distribution network planning，and based on the optimization division of power areas (or grid cells), a heuristic method of distribution network planning, i.e., the grid cell based distribution network planning method, is proposed to adapt to the gradual increase in the penetration rate of distributed resources, wherein the power balancing method involves differential approaches of different space-time-resources and two typical operating modes. The optimization division of grid cells is carried out by the principles of nearby use for distributed power resources and "nearby backup supply", resulting in the regional grid cell, substation grid cell, medium-voltage and low-voltage grid cell in terms of space, and also the energy output type, energy input type and balance type in terms of resources. The real planning example shows that the proposed method has relatively strong operability. © 2025 Power System Technology Press. All rights reserved.

关键词： Power distribution planning

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Global Probabilistic Voltage Sensitivity Analysis of Active Distribution Networks Based on the Compound Gaussian Mixture Model

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Dianwang Jishu/Power System Technology 2025年第1期49卷 295-305页

作者： zhang, Ren Wang, Jian Shang, jie Hai, Chen Liu, Haoming School of Electrical and Power Engineering Hohai University Jiangsu Province Nanjing 211100 China College of Artificial Intelligence and Automation Hohai University Jiangsu Province Nanjing 211100 China

The stochasticity of the high penetration of distributed generations (DGs) exacerbates the voltage fluctuation of the active distribution networks (ADNs) and complicates its voltage safety analysis. Therefore, this paper proposes a global probability voltage sensitivity analysis method based on the compound Gaussian mixture model (GMM). Firstly, a shared node path impedance-based global voltage sensitivity analytical model of ADN is derived to quantify the impact of global power fluctuations on node voltage. Considering that the voltage fluctuation has the non-Gaussian characteristic under the superposition influence of power uncertainty injected by multiple nodes, the GMM is used to characterize the probability characteristics of DG and load forecasting errors. Then, based on the affine transformation of the global sensitivity matrix to the GMM of DG and load forecasting error, the probability analytic expression of the voltage fluctuation is constructed, which is caused by the uncertainty of DG and load. Finally, based on the GMM characteristic function, the compound GMM characteristic function of the combined influence of the uncertainty of DG and load on voltage fluctuation is derived, and the global probabilistic voltage sensitivity analysis model based on the compound GMM is established. The case study results show that the proposed method can reflect the probability characteristics of the impact of all node power fluctuations on node voltage, and can quickly and accurately calculate the probability of over-voltage in ADNs. © 2025 Power System Technology Press. All rights reserved.

关键词： Affine transforms

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基于叶绿素荧光比较草铵膦和草甘膦对柑橘的安全性

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杂草学报 2019年第2期37卷 51-56页

作者：张泰劼程保平田兴山广东省农业科学院植物保护研究所/广东省植物保护新技术重点实验室

比较了低于推荐浓度的草铵膦和草甘膦喷雾对柑橘叶片叶绿素荧光参数和叶绿素含量的影响。结果表明,喷施0.1、1.0 mmol/L草铵膦和草甘膦后,柑橘叶片的荧光参数Y(Ⅱ)、Y(Ⅰ)、Y(NA)均较对照呈现不同程度降低趋势,且总体随着处理时间的延... 详细信息

比较了低于推荐浓度的草铵膦和草甘膦喷雾对柑橘叶片叶绿素荧光参数和叶绿素含量的影响。结果表明,喷施0.1、1.0 mmol/L草铵膦和草甘膦后,柑橘叶片的荧光参数Y(Ⅱ)、Y(Ⅰ)、Y(NA)均较对照呈现不同程度降低趋势,且总体随着处理时间的延长下降幅度增大;Y(ND)较对照呈现上升趋势,随着处理时间的延长上升幅度增大;Y(NPQ)保持相对稳定,但始终大于对照。喷施1.0 mmol/L草铵膦7 d后,柑橘叶片荧光参数Fv/Fm、Pm、Y(Ⅱ)、Y(Ⅰ)及叶绿素含量(SPAD值)小于喷施相同浓度的草甘膦,表明柑橘叶片对草铵膦耐药性弱于草甘膦。因此,橘园施用草铵膦通过茎叶途径对柑橘造成的药害风险高于草甘膦。

关键词：草铵膦草甘膦叶绿素荧光柑橘

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Sulfolane‑Based Flame‑Retardant Electrolyte for High‑Voltage Sodium‑Ion Batteries

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Nano-Micro Letters 2025年第2期17卷 498-516页

作者： Xuanlong He jie Peng Qingyun Lin Meng Li Weibin Chen Pei Liu Tao Huang Zhencheng Huang Yuying Liu Jiaojiao Deng Shenghua Ye Xuming Yang Xiangzhong Ren Xiaoping Ouyang Jianhong Liu Biwei Xiao Jiangtao Hu Qianling zhang Graphene Composite Research Center College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen 518060People’s Republic of China Center of Electron Microscopy State Key Laboratory of Silicon and Advanced Semiconductor MaterialsSchool of Materials Science and EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China GRINM(Guangdong)Research Institute for Advanced Materials and Technology FoshanGuangdong 528051People’s Republic of China College of Energy Engineering Zhejiang UniversityHangzhouZhejiang 310027People’s Republic of China School of Materials Science and Engineering Xiangtan UniversityXiangtan 411105People’s Republic of China Shenzhen Eigen-Equation Graphene Technology Co.Ltd Shenzhen 518000People’s Republic of China

Sodium-ion batteries hold great promise as next-generation energy storage ***,the high instability of the electrode/electrolyte interphase during cycling has seriously hindered the development of *** particular,an unstable cathode–electrolyte interphase(CEI)leads to successive electrolyte side reactions,transition metal leaching and rapid capacity decay,which tends to be exacerbated under high-voltage ***,constructing dense and stable CEIs are crucial for high-performance *** work reports localized high-concentration electrolyte by incorporating a highly oxidation-resistant sulfolane solvent with non-solvent diluent 1H,1H,5H-octafluoropentyl-1,1,2,2-tetrafluoroethyl ether,which exhibited excellent oxidative stability and was able to form thin,dense and homogeneous *** excellent CEI enabled the O3-type layered oxide cathode NaNi_(1/3)Mn_(1/3)Fe_(1/3)O_(2)(NaNMF)to achieve stable cycling,with a capacity retention of 79.48%after 300 cycles at 1 C and 81.15%after 400 cycles at 2 C with a high charging voltage of 4.2 *** addition,its nonflammable nature enhances the safety of *** work provides a viable pathway for the application of sulfolane-based electrolytes on SIBs and the design of next-generation high-voltage electrolytes.

关键词： Sodium-ion batteries Sulfolane-based electrolyte High voltage Layered oxide cathode Flame retardant

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再生混凝土与钢筋的粘结性能试验研究

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河北工程大学学报（自然科学版） 2010年第3期27卷 1-4页

作者：安新正易成刘燕张结太河北工程大学土木学院河北邯郸056038 中国矿业大学力学与建筑学院北京100083 河北农业大学城乡建设学院河北保定071001

采用强度等级为C25废弃普通混凝土制备再生粗集料,并按照不同比例的取代率来代替混凝土中的天然粗集料制成再生集料混凝土;通过总孔隙率试验以及梁式试件的粘结性能试验,研究了总孔隙率的变化规律以及锚固区段内钢筋与再生集料混凝土粘... 详细信息

采用强度等级为C25废弃普通混凝土制备再生粗集料,并按照不同比例的取代率来代替混凝土中的天然粗集料制成再生集料混凝土;通过总孔隙率试验以及梁式试件的粘结性能试验,研究了总孔隙率的变化规律以及锚固区段内钢筋与再生集料混凝土粘结应力的分布特征。试验结果表明,再生粗集料取代率从10%增大到30%和50%时,再生混凝土的总孔隙率分别增长了1.1%和1.6%,而随着再生粗集料取代率的增加,再生集料混凝土与钢筋的粘结性能呈逐渐降低趋势。

关键词：再生混凝土再生粗集料取代率钢筋粘结性能

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