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Propagation dynamics of dipole breathing wave in lossy nonlocal nonlinear media

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Chinese Physics B 2022年第1期31卷 273-280页

作者： Jian-li Guo Zhen-Jun Yang xing-liang li Shu-Min Zhang College of Physics Hebei Key Laboratory of Photophysics Research and ApplicationHebei Normal UniversityShijiazhuang 050024China

In the framework of nonlinear wave optics,we report the evolution process of a dipole breathing wave in lossy nonlocal nonlinear media based on the nonlocal nonlinear Schrödinger *** analytical expression of the dipole breathing wave in such a nonlinear system is obtained by using the variational *** advantage of the analytical expression,we analyze the influences of various physical parameters on the breathing wave propagation,including the propagation loss and the input power on the beam width,the beam intensity,and the wavefront ***,the corresponding analytical solutions are *** validity of the analysis results is verified by numerical *** study provides some new insights for investigating beam propagation in lossy nonlinear media.

关键词： breathing wave propagation variational method

Large delay tunable slow-light based on high-gain stimulated-Brillouin-scattering amplification in optical fibers

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Chinese Science Bulletin 2009年第15期54卷 3947-3952页

作者： xing liang ZHAN li XIA Yuxing Department of Physics State Key Laboratory of Advanced Optical Communication Systems and Networks Shanghai Jiao TongUniversity Shanghai 200240 China

Tunable stimulated-Brillouin-scattering (SBS)-based slow-light in optical fibers has potential applications in optical buffering in the future all-optical router commutation systems. However, due to the low SBS threshold and relatively high realistic signal power, the gain in the usual SBS systems is limited at^30 dB. This paper presents a high-gain SBS scheme to realize large delay slow-light, which benefits from avoiding the depletion of the pump power in a short fiber as SBS media. The experiment demonstrates that, up to 50 dB non-saturated gain has been observed in the single-stage 591.8 m fiber SBS amplification. The slow-light delay can be obtained 52 ns, and the fractional delay can exceed 1.

关键词：布里渊散射增益放大延迟光纤可调整流系统全光路由器信号功率

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江汉平原典型含水层水文地质参数反演

地球科学（中国地质大学学报） 2017年第5期42卷 727-733页

作者：陈晨文章梁杏李霞中国地质大学环境学院湖北武汉430074

含水层参数对于定性分析区域地下水资源评价、数值模拟及预报、开发利用与保护及科学管理具有重要意义,而江汉平原水文地质参数求解的研究却相对较少.2015年江汉平原1∶50 000水文地质调查项目完成杨林尾图幅与陆溪口图幅,选择杨林尾图... 详细信息

含水层参数对于定性分析区域地下水资源评价、数值模拟及预报、开发利用与保护及科学管理具有重要意义,而江汉平原水文地质参数求解的研究却相对较少.2015年江汉平原1∶50 000水文地质调查项目完成杨林尾图幅与陆溪口图幅,选择杨林尾图幅和陆溪口图幅中的4个代表性钻孔,分别做了3组抽水试验和一组压水试验.对抽水数据使用Dupuit公式法结合抽水稳定阶段数据求解含水层参数,同时利用Aquifer Test软件中Theis标准曲线法、直线图解法对抽水试验中非稳定条件下抽水数据对含水层参数求解,得到孔隙水含水层渗透系数及弹性给水度;利用压水试验工程规范求解基岩裂隙含水层的渗透系数.探讨了利用非稳定抽水试验条件下求解含水层参数方法的可行性及该方法的优势.计算结果表明:杨林尾镇浅层(20.264.55m)含水层渗透系数为0.075m/d,弹性给水度为5.8×10^(-2);深层(138160m)含水层渗透系数为9.89m/d,弹性给水度为2.3×10^(-5);陆溪口镇浅层(19.436.4m)含水层渗透系数1.26m/d,弹性给水度为1.1×10^(-1);基岩渗透系数为0.012m/d.通过结果对比分析发现对于单孔非稳定抽水试验,对前期水位降深数据筛选分析,同样可以利用非稳定井流理论反演含水层参数,结果比较可靠.

关键词：抽水试验压水试验解析法水文地质

Epigenetic regulation of the inflammatory response in stroke

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Neural Regeneration Research 2025年第11期20卷 3045-3062页

作者： Jingyi liang Fei Yang Zixiao li Qian li School of Basic Medical Sciences Capital Medical UniversityBeijingChina Department of Neurobiology School of Basic Medical SciencesCapital Medical UniversityBeijingChina Laboratory for Clinical Medicine Beijing Key Laboratory of Neural Regeneration and RepairCapital Medical UniversityBeijingChina Department of Neurology Beijing Tiantan HospitalCapital Medical UniversityBeijingChina China National Clinical Research Center for Neurological Diseases Beijing Tiantan HospitalCapital Medical UniversityBeijingChina National Center for Healthcare Quality Management in Neurological Diseases Beijing Tiantan HospitalCapital Medical UniversityBeijingChina Chinese Institute for Brain Research BeijingChina Research Unit of Artificial Intelligence in Cerebrovascular Disease Chinese Academy of Medical SciencesBeijingChina Beijing Engineering Research Center of Digital Healthcare for Neurological Diseases BeijingChina Department of Biochemistry and Molecular Biology School of Basic Medical SciencesCapital Medical UniversityBeijingChina Beijing Key Laboratory of Cancer Invasion and Metastasis Research Capital Medical UniversityBeijingChina

Stroke is classified as ischemic or hemorrhagic,and there are few effective treatments for either *** mechanisms play a critical role in secondary brain injury following a stroke,which manifests as cytokine release,blood–brain barrier disruption,neuronal cell death,and ultimately behavioral *** the inflammatory response has been shown to mitigate this cascade of events in experimental stroke ***,in clinical trials of anti-inflammatory agents,longterm immunosuppression has not demonstrated significant clinical benefits for *** may be attributable to the dichotomous roles of inflammation in both tissue injury and repair,as well as the complex pathophysiologic inflammatory processes in *** acute harmful inflammatory responses or inducing a phenotypic shift from a pro-inflammatory to an anti-inflammatory state at specific time points after a stroke are alternative and promising therapeutic *** agents that can modulate inflammation requires a detailed understanding of the inflammatory processes of ***,epigenetic reprogramming plays a crucial role in modulating post-stroke inflammation and can potentially be exploited for stroke *** this review,we summarize current findings on the epigenetic regulation of the inflammatory response in stroke,focusing on key signaling pathways including nuclear factor-kappa B,Janus kinase/signal transducer and activator of transcription,and mitogen-activated protein kinase as well as inflammasome *** also discuss promising molecular targets for stroke *** evidence to date indicates that therapeutic targeting of the epigenetic regulation of inflammation can shift the balance from inflammation-induced tissue injury to repair following stroke,leading to improved post-stroke outcomes.

关键词： DNA methylation histone modification intracerebral hemorrhage ischemic stroke neuroinflammation neuroprotection non-coding RNA RNA methylation subarachnoid hemorrhage treatment

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射频与微波消融治疗肝脏肿瘤的疗效及安全性

医药论坛杂志 2014年第10期35卷 35-36页

作者：梁星丽黄河中心医院肿瘤科郑州450003

目的比较射频消融与微波消融治疗肝脏肿瘤的疗效及安全性。方法将126例肝脏肿瘤患者随机分为射频消融组(RFA组)合微波消融组(WMA组),分别给予射频消融和微波消融,比较两组完全消融率等指标,恶性肿瘤患者局部复发率、远期生存率以及术后... 详细信息

目的比较射频消融与微波消融治疗肝脏肿瘤的疗效及安全性。方法将126例肝脏肿瘤患者随机分为射频消融组(RFA组)合微波消融组(WMA组),分别给予射频消融和微波消融,比较两组完全消融率等指标,恶性肿瘤患者局部复发率、远期生存率以及术后并发症发生率等。结果两组完全消融率、局部复发率、远期生存率等均无显著差异(P>0.05),RFA组术后并发症发生率显著低于WMA组(P<0.05)。结论射频消融与微波消融均能够有效消除肝脏肿瘤,对恶性肿瘤的治疗安全有效。

关键词：射频消融微波消融肝脏肿瘤安全性

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构建“东亚共同体”刍议

经济研究导刊 2013年第35期 229-230页

作者：梁兴莉上海金融学院外语系上海201209

在东亚地区的经济和社会发展交融之下,"东亚共同体"已是大势所趋。但自该概念提出后却始终举步维艰,至今仍停留在纸面。因此,需要积极借鉴欧洲一体化的经验和教训,推动"东亚共同体"的构建。

关键词：东亚共同体国家关系制度建设

Interfacial Zn2+-solvation regulator towards reversible and stable Zn anode

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Journal of Energy Chemistry 2025年第1期100卷 684-692页

作者： Miao Zhou Xiongbin Luo Hang li Shan Guo Zhuang Tong Xiaotao Zhou Xu li Zhaohui Hou Shuquan liang Guozhao Fang College of Mechanical Engineering Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials Hunan Institute of Science and Technology School of Materials Science and Engineering Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan Province Central South University College of Materials and Metallurgy Guizhou University National Energy Metal Resources and New Materials Key Laboratory Central South University

Aqueous zinc-ion batteries （AZIBs） are fundamentally challenged by the instability of the electrode/electrolyte interface,predominantly due to irreversible zinc （Zn） deposition and hydrogen ***,the intricate mechanisms behind the electrochemical discrepancies induced by interfacial Zn2+-solvation and deposition behavior demand comprehensive *** molecules endowed with special functional groups （such as hydroxyl,carboxyl,etc.） have the potential to significantly optimize the solvation structure of Zn2+and regulate the interfacial electric double layer （EDL）.By increasing nucleation overpotential and decreasing interfacial free energy,these functional groups facilitate a lower critical nucleation radius,thereby forming an asymptotic nucleation model to promote uniform Zn ***,this study presents a pioneering approach by introducing trace amounts of n-butanol as solvation regulators to engineer the homogenized Zn （H-Zn） anode with a uniform and dense *** interfacial reaction and structure evolution are explored by in/ex-situ experimental techniques,indicating that the H-Zn anode exhibits dendrite-free growth,no by-products,and weak hydrogen evolution,in sharp contrast to the bare ***,the H-Zn anode achieves a remarkable Zn utilization rate of approximately 20% and simultaneously sustains a prolonged cycle life exceeding 500 ***,the H-Zn//NH4V4O10（NVO） full battery showcases exceptional cycle stability,retaining 95.04%capacity retention after 400 cycles at a large current density of 5 A *** study enlightens solvation-regulated additives to develop Zn anode with superior utilization efficiency and extended operational lifespan.

关键词： Aqueous zinc-ion batteries Interfacial reaction Asymptotic nucleation model Reversible and stable Zn anode

超声引导下微创技术在早期乳腺癌筛查中的作用

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医药论坛杂志 2017年第10期38卷 64-65页

作者：梁星丽梁文丽黄河水利委员会黄河中心医院肿瘤科郑州450003 濮阳市中医院妇产科河南濮阳457003

目的探析在筛查早期乳腺癌中应用超声引导实施微创技术的效果。方法对2015年1月—2016年12月黄河中心医院120例乳腺疾病患者长径在10 mm以下的乳腺微小结节共180个实施乳腺微创旋切术,术中旋切组织标本快速送至进行冰冻切片病理检查,按... 详细信息

目的探析在筛查早期乳腺癌中应用超声引导实施微创技术的效果。方法对2015年1月—2016年12月黄河中心医院120例乳腺疾病患者长径在10 mm以下的乳腺微小结节共180个实施乳腺微创旋切术,术中旋切组织标本快速送至进行冰冻切片病理检查,按照快速病理结果确定手术开展的方式,术后进行病理检查,全部良性病变患者均接受为期半年的随访。结果本组180个微小结节中12例为恶性结节,168例为良性结节,Ⅱ级恶性率为0%,Ⅲ级恶性率为1.42%,Ⅳ级恶性率52.94%,Ⅴ级恶性率20%;乳腺微创旋切术患者术后有2例术中发生血肿,1例有活动性出血。结论超声引导下微创技术用于筛查早期乳腺癌能够帮助准确完成病理组织学诊断,价值明显,安全性高。

关键词：早期乳腺癌超声引导微创技术筛查

Unraveling post-growth mechanisms of monolayer CsPbBr3 nanocubes:Laser-enhanced transformations and cathodoluminescence-electron microscopy correlations

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Journal of Energy Chemistry 2025年第1期100卷 146-156页

作者： Mingxing li Xiaoge Wang Xiaofan Cao Zhiqun He Chunjun liang Mingxing Chen Jing Ju Fangtian You Key Laboratory of Luminescence and Optical Information Ministry of Education Institute of Optoelectronic Technology Beijing Jiaotong University Beijing National Laboratory for Molecular Sciences (BNLMS) College of Chemistry and Molecular Engineering Peking University

Lead-halide perovskite nanoparticles（LHP NPs） are highly promising materials for next-generation displays and solid-state lighting due to their exceptional optical properties. However, their inherent instability presents a significant challenge. Recent advances have demonstrated that optoelectronic devices based on monolayer nanoparticle films exhibit both high luminescence efficiency and long-term *** research demonstrates that mobility limitations and anisotropic alignments in CsPbBr3nanocube monolayer films are key to their stabilization, hindering spontaneous growth through face-to-face fusion and resulting in the formation of connecting necks in a diagonal direction. Introducing laser irradiation confirmed this by significantly accelerating nanocubes growth, increasing mobility, and enhancing local structural ordering, leading to larger and more regularly shaped nanosheets. Fourier transform infrared spectroscopy and energy dispersive spectroscopy line-scan analyses indicated that laser irradiation did not disrupt the ligand structure. Transmission electron microscopy and correlative cathodoluminescence electron microscopy revealed the effects of post-growth and heterogeneous structures, including enhanced luminescence and inhomogeneous intensity in the nanosheets. These findings deepen the understanding of the post-growth mechanism of monolayer nanoparticles and the structure-emission correlation and highlight the unique role of laser irradiation in directing the formation of well-defined and regular nanostructures.

关键词： Post-growth mechanism Heterogeneous structure Single-particle spectroscopy Laser irradiation