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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 369-379页

作者： Mei Zhang Wenhao Li Yangfei chen Yang Jiang Xiaofei guo Han Dong School of Materials Science and Engineering Shanghai UniversityShanghai 200444China State Key Laboratory of Advanced Special Steel Shanghai UniversityShanghai 200444China

The microstructural evolution of a cold-rolled and intercritical annealed medium-Mn steel(Fe-0.10C-5Mn)was investigated during uniaxial tensile ***-situ observations under scanning electron microscopy,transmission electron microscopy,and X-ray diffraction analysis were conducted to characterize the progressive transformation-induced plasticity process and associated fracture initiation *** findings were discussed with the local strain measurements via digital image *** results indicated that Lüders band formation in the steel was limited to 1.5%strain,which was mainly due to the early-stage martensitic phase transformation of a very small amount of the less stable large-sized retained austenite(RA),which led to localized stress concentrations and strain hardening and further retardation of *** small-sized RA exhibited high stability and progressively transformed into martensite and contributed to a stably extended Portevin-Le Chatelier *** volume fraction of RA gradually decreased from 26.8%to 8.2%prior to *** the late deformation stage,fracture initiation primarily occurred at the austenite/martensite and ferrite/martensite interfaces and the ferrite phase.

关键词： medium-Mn steel retained austenite progressive transformation-induced plasticity effect local strain fracture initiation

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氯化石蜡在水性钢结构防火涂料中的应用

涂料工业 2005年第2期35卷 26-27页

作者：王国建陈明杭刘琳同济大学材料科学与工程学院上海200092

考察了氯化石蜡(氯烃-70)在水性钢结构防火涂料中的应用情况。结果表明,氯烃-70能明显增加涂层的发泡倍率,其在防火体系中的含量越高,涂层的耐火性能越好,但同时发泡层强度下降,添加少量的硅酸铝纤维可以有效地解决发泡层强度下降的问题。

关键词：发泡倍率水性钢结构防火涂料氯化石蜡涂层添加硅酸铝纤维耐火性能强度应用情况

Chondroitinase ABC combined with Schwann cell transplantation enhances restoration of neural connection and functional recovery following acute and chronic spinal cord injury

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Neural Regeneration Research 2025年第5期20卷 1467-1482页

作者： Wenrui Qu Xiangbing Wu Wei Wu Ying Wang Yan Sun Lingxiao Deng Melissa Walker chen chen Heqiao Dai Qi Han Ying Ding Yongzhi Xia George Smith Rui Li Nai-Kui Liu Xiao-ming Xu Spinal Cord and Brain Injury Research Group Stark Neurosciences Research InstituteDepartment of Neurological SurgeryIndiana University School of MedicineIndianapolisINUSA Department of Hand Surgery the Second Hospital of Jilin UniversityChangchunJilin ProvinceChina Shriners Hospitals Pediatric Research Center Temple University School of MedicinePhiladelphiaPAUSA Department of Anatomy&Cell Biology Indiana University School of MedicineIndianapolisINUSA

Schwann cell transplantation is considered one of the most promising cell-based therapy to repair injured spinal cord due to its unique growth-promoting and myelin-forming properties.A the Food and Drug Administration-approved Phase I clinical trial has been conducted to evaluate the safety of transplanted human autologous Schwann cells to treat patients with spinal cord injury.A major challenge for Schwann cell transplantation is that grafted Schwann cells are confined within the lesion cavity,and they do not migrate into the host environment due to the inhibitory barrier formed by injury-induced glial scar,thus limiting axonal reentry into the host spinal *** we introduce a combinatorial strategy by suppressing the inhibitory extracellular environment with injection of lentivirus-mediated transfection of chondroitinase ABC gene at the rostral and caudal borders of the lesion site and simultaneously leveraging the repair capacity of transplanted Schwann cells in adult rats following a mid-thoracic contusive spinal cord *** report that when the glial scar was degraded by chondroitinase ABC at the rostral and caudal lesion borders,Schwann cells migrated for considerable distances in both rostral and caudal *** Schwann cell migration led to enhanced axonal regrowth,including the serotonergic and dopaminergic axons originating from supraspinal regions,and promoted recovery of locomotor and urinary bladder ***,the Schwann cell survival and axonal regrowth persisted up to 6 months after the injury,even when treatment was delayed for 3 months to mimic chronic spinal cord *** findings collectively show promising evidence for a combinatorial strategy with chondroitinase ABC and Schwann cells in promoting remodeling and recovery of function following spinal cord injury.

关键词： axonal regrowth bladder function chondroitinase ABC functional recovery glial scar lentivirus migration Schwann cell spinal cord injury transplantation

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3期17卷 19-36页

作者： Xufeng Li Chunyan chen Zhenyang Li Peng Yi Haihan Zou Gao Deng ming Fang Junzhe He Xin Sun Ronghai Yu Jianglan Shui Caofeng Pan Xiaofang Liu School of Materials Science and Engineering Beihang UniversityBeijing 100191People’s Republic of China Institute of Atomic Manufacturing Beihang UniversityBeijing 100191People’s Republic of China Tianmushan Laboratory Xixi Octagon CityYuhang DistrictHangzhou 310023People’s Republic of China Science and Technology On Electromagnetic Scattering Laboratory Beijing Institute of Environmental FeaturesBeijing 100854People’s Republic of China

Conductive polymer foam(CPF)with excellent compressibility and variable resistance has promising applications in electromagnetic interference(EMI)shielding and other integrated functions for wearable ***,its insufficient change amplitude of resistance with compressive strain generally leads to a degradation of shielding performance during ***,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 *** 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 ***,the resistance change of AMLM-PM reaches four orders of magnitude under ***,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 ***-PM foam has strain-adaptive EMI shielding performance and shows compression-enhanced shielding effectiveness,solving the problem of traditional CPFs upon *** 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

Deciphering fungal metabolon coupling tandem inverse-electrondemand Diels-Alder reaction and semipinacol rearrangement for the biosynthesis of spiro polycyclic alkaloids

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Science China Chemistry 2025年第01期 288-296页

作者： Shuai Liu Wen-Qiang Xu Ying-Tong Di Man-cheng Tang Ding-Kang chen ming-ming Cao Yao-Wen Chang Hong-Yu Tang Chun-Mao Yuan Jun-Bo Yang Zhi-Li Zuo Han guo Zi-Fei Xu Ying Zeng Yun-Dong Wu Xiao-Jiang Hao Key Laboratory of Phytochemistry and Natural Medicines (Chinese Academy of Sciences) Kunming Institute of Botany Chinese Academy of Sciences University of Chinese Academy of Sciences Lab of Computational Chemistry and Drug Design State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Shenzhen Bay Laboratory State Key Laboratory of Microbial Metabolism School of Life Sciences & Biotechnology Shanghai Jiao Tong University State Key Laboratory of Functions and Applications of Medicinal Plants Guizhou Medical University Molecular Biology Experimental Center Germplasm Bank of Wild Species in Southwest China Kunming Institute of Botany Chinese Academy of Sciences Yunnan Key Laboratory for Wild Plant Resources Kunming Institute of Botany Chinese Academy of Sciences Research Unit of Chemical Biology of Natural Anti-Virus Products Chinese Academy of Medical Sciences

In the intricate process of natural product biosynthesis, a metabolon can enhance metabolic flux by associating sequential enzymes. A fungal metabolon, comprising of flavin-dependent monooxygenase Spe F and P450 monooxygenase Spe G, is identified in the biosynthesis of spiro polycyclic alkaloids(+)-notoamide B and its diastereomer(+)-versicolamide B. Using notoamide E as a substance, Spe F/Spe G metabolon can control the stereoselectivity of its 2,3-epoxidation, followed by hydrogen atom ion at C-17 to generate reactive epoxide tau-m A with dienyl iminium unit. Subsequently,(+)-notoamide B and(+)-versicolamide B are produced via tandem nonenzymatic inverse-electron-demand Diels-Alder reaction and semipinacol rearrangement. This provides the first example of metabolon in the biosynthesis of spiro-prenylated indole alkaloids.

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拉萨河流域生长期NDVI对气象因子响应的时空动态特征

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水电能源科学 2023年第8期41卷 5-9页

作者：章阳张润润郭明辰王钊河海大学水文水资源学院江苏南京210098

拉萨河流域是青藏高原典型干旱半干旱流域,生态系统极为脆弱,研究植被指数(NDVI)对气象要素变化响应滞时的时空动态,对于探讨气候变化背景下青藏高原植被对气象因子变化的适应性具有重要意义。基于拉萨河流域1982~2017年逐月NDVI、降水... 详细信息

拉萨河流域是青藏高原典型干旱半干旱流域,生态系统极为脆弱,研究植被指数(NDVI)对气象要素变化响应滞时的时空动态,对于探讨气候变化背景下青藏高原植被对气象因子变化的适应性具有重要意义。基于拉萨河流域1982~2017年逐月NDVI、降水量(P)、平均气温(T)数据,利用Pettitt突变及Mann-Kendall趋势检验,解析生长期NDVI及各气象因子的时空动态,并基于Pearson相关分析,识别生长期NDVI对不同气象因子响应滞时,解析气象因子对NDVI时空变化的影响。结果表明,流域尺度NDVI在1997年发生显著突变,且存在由增向减的趋势转变,流域气候由突变前的“冷湿化”向突变后的“暖干化”转变,同时其对植被生长的作用由促进转为抑制;流域内存在两条明显的NDVI对气象因子响应的滞时变化带,即流域西部多年冻土区NDVI由突变前对气象因子无响应转为突变后对P、T响应,流域南部低海拔地区NDVI对P在突变后的响应滞时较突变前延长1个月,且对T由突变前无响应转为突变后的快速响应,流域西部永久冻土区NDVI对P的响应滞时长于流域南部季节冻土区;突变后NDVI对气象因子的响应面积较突变前均有所增加,气象因子对拉萨河流域植被生长的影响作用增强。

关键词：植被指数(NDVI) 气候变化响应滞时时空动态拉萨河流域

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138例非哺乳期乳腺炎临床诊疗分析

医学综述 2015年第6期21卷 1106-1107页

作者：郭晨明付明刚李丹郭丽英新疆医科大学第一附属医院乳腺科乌鲁木齐830054

目的探讨非哺乳期乳腺患者的一般情况、临床特点及治疗方法。方法回顾性分析2009年1月至2011年12月新疆医科大学第一附属医院乳腺外科收治的138例非哺乳期乳腺炎患者的临床资料,对患者的一般情况、临床表现及治疗进行讨论分析。结果本... 详细信息

目的探讨非哺乳期乳腺患者的一般情况、临床特点及治疗方法。方法回顾性分析2009年1月至2011年12月新疆医科大学第一附属医院乳腺外科收治的138例非哺乳期乳腺炎患者的临床资料,对患者的一般情况、临床表现及治疗进行讨论分析。结果本病好发于育龄期、有过哺乳史的女性,单侧多发,主要临床症状表现为乳房疼痛和肿块,其次依次为皮肤红肿、腋窝淋巴结肿大、发热,乳头凹陷发生率最低,治疗方式主要为手术,本病的复发率较高,为21.7%。结论非哺乳期乳腺炎病因不明、临床表现多样、易反复发作,其在诊断与治疗上有一定难度,应根据患者不同的情况制订个体化的治疗方案,以期达到彻底治愈的目的。

关键词：乳腺炎非哺乳期临床诊疗复发

Laser image refractive index sensor based on the combination of a coreless optical fiber and a digital camera

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Optoelectronics Letters 2025年第2期 65-68页

作者： guo Jingzhong LAN Feng chen Xiang LIU Haifeng Xi'an Institute of Space Radio Technology Key Laboratory of Optoelectronic Sensor and Sensing Network Technology College of Electronic Information and Optical Engineering Nankai University

As a laser passes through a scattering medium,the light interacts with the irregular reflections within the medium,resulting in light scattering and the formation of *** this paper,an image sensor based on the combination of a coreless optical fiber and a digital camera is proposed for liquid refractive index sensing *** coreless fiber is used as a sensing unit,and the change in the speckle pattern is measured using the digital correlation method to detect the magnitude of the liquid's refractive *** experimental results indicate that the laser image sensing technique is capable of effectively distinguishing liquid samples with refractive indices ranging from 1.332 8 to1.390 8,with a sensing sensitivity of-1.306 ***,the laser image sensing technique,with its advantages of high experimental reproducibility,simple system design,remote over-control,holds great research significance and potential application in laser communication and sensor integration.

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Self-assembled carbon monoxide nanoprodrug for chemiexcitationtriggered synergistic chemotherapy against breast cancer

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Science China Chemistry 2025年

作者： Shunfei Cui Yiyao Pan chenzhe Ma Bin Qi Qingqiang Min ming Li Huabing chen Hengte Ke Xingyue Ji Jiangsu Province Engineering Research Center of Precision Diagnostics and Therapeutics Development College of Pharmaceutical ScienceSoochow University

Carbon monoxide（CO） has recently been well-established as a promising therapeutic modality against cancer. The development of transition-metal-free and tumor-targeted delivery platforms for CO is highly demanded but remains very sporadic. Herein, we developed a polyprodrug system for the co-delivery of CO and a chemotherapeutic agent combretastin A-4（CA-4） to the tumor site based on a chemiexcitation mechanism. Such a poly-prodrug successfully achieved the co-activation of CO and CA-4 in response to H2O2at the tumor site both in vitro and in vivo. Importantly, a synergist effect between CO and CA-4 was observed in suppressing tumor growth in a mouse tumor model. It is anticipated that such a poly-prodrug system could be potentially adapted for the co-delivery of CO and another drug payload for combinational therapy for other indications.

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基于微粒群优化算法的超市最优选址定量化研究

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计算机工程与应用 2006年第25期42卷 16-18页

作者：杜国明陈晓翔黎夏中山大学地理科学与规划学院遥感与地理信息工程系中山大学地理科学与规划学院遥感与地理信息工程系广州510275

论文尝试使用微粒群优化算法与GIS相结合解决超市最优选址问题。首先,对影响超市经营好坏的因子进行了分析,包括:人口密度、交通因子以及竞争因子的影响;然后,详细阐述了微粒群优化算法与GIS技术相结合用于解决超市最优选址的实施方法;... 详细信息

论文尝试使用微粒群优化算法与GIS相结合解决超市最优选址问题。首先,对影响超市经营好坏的因子进行了分析,包括:人口密度、交通因子以及竞争因子的影响;然后,详细阐述了微粒群优化算法与GIS技术相结合用于解决超市最优选址的实施方法;最后,以广州市芳村区为例,对PSO方法进行实例验证。通过与穷举法进行对比实验,证明微粒群优化算法具有较好的收敛速度、较高的结果精度,是解决超市最优选址的一种有效方法。

关键词：微粒群优化算法最优选址 GIS