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Inter-Skeleton Conductive Routes Tuning Multifunctional Conductive Foam for Electromagnetic Interference Shielding, Sensing and Thermal Management

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NANO-MICRO LETTERS 2025年第1期17卷 1-18页

作者： Li, Xufeng Chen, Chunyan Li, Zhenyang yi, Peng Zou, Haihan Deng, Gao Fang, Ming He, Junzhe sun, Xin Yu, Ronghai Shui, Jianglan Pan, Caofeng Liu, Xiaofang Beihang Univ Sch Mat Sci & Engn Beijing 100191 Peoples R China Beihang Univ Inst Atom Mfg Beijing 100191 Peoples R China Tianmushan Lab Xixi Octagon City Hangzhou 310023 Peoples R China Beijing Inst Environm Features Sci & Technol Electromagnet Scattering Lab Beijing 100854 Peoples R China

Unique inter-skeleton conductive films are constructed in polymer *** resistance change of the foam can reach four orders of magnitude under *** foam exhibits strain-adaptive electromagnetic interference shielding performance, anti-interference pressure sensor with high sensitivity over a wide pressure range and compression-regulated Joule heating function. Conductive polymer foam (CPF) with excellent compressibility and variable resistance has promising applications in electromagnetic interference (EMI) shielding and other integrated functions for wearable electronics. However, its insufficient change amplitude of resistance with compressive strain generally leads to a degradation of shielding performance during deformation. Here, an innovative loading strategy of conductive materials on polymer foam is proposed to significantly increase the contact probability and contact area of conductive components under compression. Unique inter-skeleton conductive films are constructed by loading alginate-decorated magnetic liquid metal on the polymethacrylate films hanged between the foam skeleton (denoted as AMLM-PM foam). Traditional point contact between conductive skeletons under compression is upgraded to planar contact between conductive films. Therefore, the resistance change of AMLM-PM reaches four orders of magnitude under compression. Moreover, the inter-skeleton conductive films can improve the mechanical strength of foam, prevent the leakage of liquid metal and increase the scattering area of EM wave. AMLM-PM foam has strain-adaptive EMI shielding performance and shows compression-enhanced shielding effectiveness, solving the problem of traditional CPFs upon compression. The upgrade of resistance response also enables foam to achieve sensitive pressure sensing over a wide pressure range and compression-regulated Joule heating function.

关键词： Inter-skeleton conductive films Conductive polymer foam Liquid metal Electromagnetic interference shielding

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A survey of weak stability boundaries in the sun-Mars system

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Research in Astronomy and Astrophysics 2015年第3期15卷 376-392页

作者： Jian Li yi-Sui sun School of Astronomy and Space Science & Key Laboratory of Modern Astronomy and Astrophysics in Ministry of Education Nanjing University

We investigate the weak stability boundary （WSB） for a new primary, Mars, in the framework of the planar circular restricted 3-body problem, and also in the pla- nar bicircular restricted 4-body problem by including a perturbation due to Jupiter. For the sake of a simple stability/instability criterion, our computations have been done us- ing the equations of motion in polar coordinates. It is found that the relative size of the weakly stable sets around Mars is much larger than that of the Earth-Moon and the sun-Jupiter systems, as the mass ratio of the sun-Mars system is significantly smaller. We propose that this difference could be scaled by the Hill radius. In an enlarged view of the domain close to Mars, the geometry of the WSB has been presented for various parameters and compared to previous works. Our results also show that Jupiter＇s grav- itational force would strongly affect the Martian stable regions and should be taken into account to design a ballistic capture trajectory.

关键词： celestial mechanics

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蓬莱西海岸近海岸滩泥沙运移趋势和冲淤演变研究

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海岸工程 2017年第2期36卷 36-47页

作者：邱恒清孙宜超秦巧丽赵倩山东省水利勘测设计院山东济南250013 山东高速集团有限公司山东高速蓬莱发展有限公司山东济南250098

多年来山东半岛大范围开采海砂对海岸线造成了巨大破坏,加剧了波浪对海岸的侵蚀,造成海岸线后退。通过取样分析了海床沉积物的中值粒径和分选系数分布特征,在野外调查的基础上得到沉积物类型和黏土含量分布情况。通过布设测站实测数据... 详细信息

多年来山东半岛大范围开采海砂对海岸线造成了巨大破坏,加剧了波浪对海岸的侵蚀,造成海岸线后退。通过取样分析了海床沉积物的中值粒径和分选系数分布特征,在野外调查的基础上得到沉积物类型和黏土含量分布情况。通过布设测站实测数据总结了近海海域含沙量和单宽输沙量特点,并基于悬浮泥沙遥感反演分析了近海海域含沙量分布规律。最后,通过分析泥沙来源和运移趋势,对海床冲淤情况进行了演变分析,得出了海岸线变化过程。自20世纪50年代以来现状海岸线已后退约500m且仍处于侵蚀后退状态,本研究为海岸线修复提供基础技术支撑和依据。

关键词：遥感反演泥沙运移趋势冲淤演变岸线修复

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海河干流表层沉积物中的有机氯农药残留

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农业环境科学学报 2006年第1期25卷 232-236页

作者：干爱华刘军丁辉李鑫钢沈伟然孙贻超邵晓龙天津大学化工学院天津300072 天津市环境保护科学研究院天津300191

采用现场采样及室内分析方法,调查了海河干流表层沉积物中持久性有机氯农药(OCPs)的残留状况。结果表明,所测样品中有机氯农药总浓度为8.95￣239.92ng·g-(1均值67.3ng·g-1)(干重),HCHs、DDTs在所有采样点均有检出,含量分别为3.30￣75.... 详细信息

采用现场采样及室内分析方法,调查了海河干流表层沉积物中持久性有机氯农药(OCPs)的残留状况。结果表明,所测样品中有机氯农药总浓度为8.95￣239.92ng·g-(1均值67.3ng·g-1)(干重),HCHs、DDTs在所有采样点均有检出,含量分别为3.30￣75.96ng·g-(1均值18.25ng·g-1)、1.57￣221.57ng·g-(1均值48.78ng·g-1)。沉积物中有机氯农药的成分分析结果表明,OCPs残留物可能主要来自农田土壤的残留,近期基本无新的污染源输入。与国内外部分河流表层沉积物中HCHs、DDTs的含量相比,海河表层沉积物中的有机氯农药含量较高。

关键词：海河干流沉积物有机氯农药污染源

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Impact of ocean data assimilation on the seasonal forecast of the 2014/15 marine heatwave in the Northeast Pacific Ocean

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Atmospheric and Oceanic Science Letters 2025年第1期18卷 24-31页

作者： Tiantian Tang Jiaying He Huihang sun Jingjia Luo Institute for Climate and Application Research(ICAR)/Key Laboratory of Meteorological Disaster Nanjing University of Information Science and TechnologyNanjingChina

A remarkable marine heatwave,known as the“Blob”,occurred in the Northeast Pacific Ocean from late 2013 to early 2016,which displayed strong warm anomalies extending from the surface to a depth of 300 *** study employed two assimilation schemes based on the global Climate Forecast System of Nanjing University of Information Science(NUIST-CFS 1.0)to investigate the impact of ocean data assimilation on the seasonal prediction of this extreme marine *** sea surface temperature(SST)nudging scheme assimilates SST only,while the deterministic ensemble Kalman filter(EnKF)scheme assimilates observations from the surface to the deep *** latter notably improves the forecasting skill for subsurface temperature anomalies,especially at the depth of 100-300 m(the lower layer),outperforming the SST nudging *** excels in predicting both horizontal and vertical heat transport in the lower layer,contributing to improved forecasts of the lower-layer warming during the *** improvements stem from the assimilation of subsurface observational data,which are important in predicting the upper-ocean *** results suggest that assimilating ocean data with the EnKF scheme significantly enhances the accuracy in predicting subsurface temperature anomalies during the Blob and offers better understanding of its underlying mechanisms.

关键词： Seasonal forecast Ocean data assimilation Marine heatwave Subsurface temperature

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椰子油酸三羟甲基丙烷酯的合成

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海南热带海洋学院学报 2018年第2期25卷 93-97页

作者：钟小雪孙乙超符梅爱何节玉海南热带海洋学院海洋科学技术学院海南三亚572022

以自制固体酸Ti(SO_4)_2/SiO_2为催化剂,椰子油酸与三羟甲基丙烷进行酯化反应合成椰子油酸三羟甲基丙烷酯.采用单因子法优化合成工艺条件,并通过红外光谱FTIR表征产物的分子结构.获得优化合成工艺的条件为:椰子油酸与三羟甲基丙烷的物... 详细信息

以自制固体酸Ti(SO_4)_2/SiO_2为催化剂,椰子油酸与三羟甲基丙烷进行酯化反应合成椰子油酸三羟甲基丙烷酯.采用单因子法优化合成工艺条件,并通过红外光谱FTIR表征产物的分子结构.获得优化合成工艺的条件为:椰子油酸与三羟甲基丙烷的物质的量比4.5∶1、催化剂用量2.5%(相对反应物的质量百分数)、带水剂甲苯的用量15 mL(相对于0.05mol三羟甲基丙烷)、回流温度140℃、反应时间为4 h;优化条件下酯化率达88.4%.红外光谱表明,产物确为椰子油酸三羟甲基丙烷酯.

关键词：植物油基酯椰子油酸三羟甲基丙烷固体酸催化合成

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An ultrasonic-ionic liquid process for the efficient acid catalyzed hydrolysis of feather keratin

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Chinese Journal of Chemical Engineering 2019年第3期27卷 660-667页

作者： Song Ding Yang sun Hongyue Chen chao Xu yi Hu School of Pharmaceutical Sciences Nanjing Tech University School of Biotechnology and Pharmaceutical Engineering of Nanjing Tech University School of Pharmaceutical Sciences State Key Laboratory of Material-Oriented Chemical Engineering Nanjing Tech University

A novel efficient method for hydrolyzing feather keratin using an ultrasonic-ionic liquid coupling process has been developed, with reaction conditions optimized using response surface analysis of data obtained from single factor optimization studies. Ultrasonic irradiation(225 W power) of feathers in 8.4 mol·L^(-1) hydrochloric acid containing 1-butyl-3-methylimidazolium chloride as a cosolvent at 80 °C for 1.4 h, followed by heating at 110 °C for 8.3 h, resulted in hydrolysis of their keratin component in an excellent 83.1% yield. Compared with previous methods, this new method employs reduced amounts of hydrochloric acid, shorter reaction time, and affords amino acid hydrolysis products in higher yield.

关键词： Ionic liquid Ultrasonic Keratin Hydrolysis Amino acid

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High-resolution swath bathymetry using MIMO sonar system

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Journal of Systems Engineering and Electronics 2014年第5期25卷 761-768页

作者： Xionghou Liu chao sun Jie Zhuo Feng yi Zongwei Liu Institute of Acoustic Engineering Northwestern Polytechnical University

For increasing the cross-track resolution, the multiple input multiple output （MIMO） technique is introduced into the swath bathymetry system and a new swath bathymetry approach using MIMO sonar is proposed. The MIMO sonar is composed of two parallel transmitting uniform linear arrays （ULAs） and a receiving ULA which is perpendicular to the former. The spacing between the two transmitting ULAs is equal to the product of the receiving sensor number and the receiving inter-sensor spacing. Furthermore, two narrowband linear frequency modulation （LFM） pulses, sharing the same frequency band but with opposite modulation slopes, are used as transmitting waveforms of the two transmitting ULAs. With such an array layout and transmitting signals, the MIMO sonar can sound a swath with the cross-track resolution doubling that of the traditional multibeam sonar using a Mills cross array. Numerical examples are provided to verify the effectiveness of the proposed approach.

关键词： bathymetry multibeam sonar multiple input multipleoutput (MIMO) sonar waveform diversity.

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Dissecting the cell microenvironment of ovarian endometrioma through single-cell RNA sequencing

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Science China Life Sciences 2025年第1期 116-129页

作者： Jiangpeng Wu Siyu Xia Wenting Ye Yan sun Jing Cai Fubing Yu Haiping Wen Xiuwei yi Taikang Li Mingwei Chen Jiayun Chen Ge Song Chuanbin Yang Yali Song Jigang Wang Department of Reproductive Medicine Dongguan Maternal and Child Health Care Hospital Department of Urology and Shenzhen Clinical Research Centre for GeriatricsShenzhen People's HospitalSouthern University of Science and Technology State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs Artemisinin Research Centerand Institute of Chinese Materia MedicaChina Academy of Chinese Medical Sciences Reproductive Medicine Center Foshan Women and Children Hospital State Key Laboratory of Antiviral Drugs School of PharmacyHenan University

Ovarian endometrioma（OE）, also known as “chocolate cysts,” is a cystic mass that develops in the ovaries due to endometriosis and is a common gynecological condition characterized by the growth of endometrial tissue outside the uterus, leading to symptoms such as dysmenorrhea, pelvic pain, and infertility. However, the precise molecular and cellular mechanisms driving this pathophysiology remain largely unknown, posing challenges for diagnosis and treatment. Here, we employed integrated single-cell transcriptomic profiling of over 52,000 individual cells from endometrial tissues of OE patients and healthy donors and identified twelve major cell populations. We identified notable alterations in cell type-specific proportions and molecular signatures associated with OE. Notably, the activation of IGFBP5+macrophages with pro-inflammatory properties, NK cell exhaustion, and aberrant proliferation of IQCG+and KLF2+epithelium are key features and may be the potential mechanisms underlying the pathogenesis of OE. Collectively, our data contribute to a better understanding of OE at the single cell level and may pave the way for the development of novel therapeutic strategies.

关键词： ovary high-throughput sequencing transcriptomics gene expression analysis ligand-receptor analysis

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Boosting bidirectional sulfur conversion enabled by introducing boron-doped atoms and phosphorus vacancies in Ni2P for lithium-sulfur batteries

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Journal of Energy Chemistry 2025年第1期100卷 760-769页

作者： Lin Peng Yu Bai Hang Li Meixiu Qu Zhenhua Wang Kening sun Advanced Research Institute of Multidisciplinary Science Beijing Institute of Technology Beijing Key Laboratory of Chemical Power Source and Green Catalysis School of Chemistry and Chemical Engineering Beijing Institute of Technology

Lithium-sulfur （Li-S） batteries have gained great attention due to the high theoretical energy density and low cost,yet their further commercialization has been obstructed by the notorious shuttle effect and sluggish redox ***,we supply a strategy to optimize the electron structure of Ni2P by concurrently introducing B-doped atoms and P vacancies in Ni2P （Vp-B-Ni2P）,thereby enhancing the bidirectional sulfur *** study indicates that the simultaneous introduction of B-doped atoms and P vacancies in Ni2P causes the redistribution of electron around Ni atoms,bringing about the upward shift of d-band center of Ni atoms and effective d-p orbital hybridization between Ni atoms and sulfur species,thus strengthening the chemical anchoring for lithium polysulfides （LiPSs） as well as expediting the bidirectional conversion kinetics of sulfur ***,theoretical calculations reveal that the incorporation of B-doped atoms and P vacancies in Ni2P selectively promotes Li2S dissolution and nucleation ***,the Li-S batteries with Vp-B-Ni2P-separators present outstanding rate ability of 777 m A h g-1at 5 C and high areal capacity of 8.03 mA h cm-2under E/S of 5μL mg-1and sulfur loading of 7.20 mg *** work elucidates that introducing heteroatom and vacancy in metal phosphide collaboratively regulates the electron structure to accelerate bidirectional sulfur conversion.

关键词： Lithium sulfur batteries

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