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Liquid metal spring： oscillating coalescence and ejection of contacting liquid metal droplets

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Science Bulletin 2015年第6期60卷 648-653,M0004页

作者： Bin Yuan Zhizhu He wenqiang fang Xin Bao Jing Liu Key Laboratory of Cryogenics Technical Institute of Physicsand Chemistry Chinese Academy of Sciences Beijing 100190China Department of Biomedical Engineering School of Medicine Tsinghua University Beijing 100084 China

With pretty high surface tension, the room temperature liquid metal may inherit with unexpected be- haviors that conventional fluids could not own. Here, we disclosed the coalescence and ejection phenomena of liquid metal droplets via high-speed camera. It was experimen- tally found that, when gently contacting （rather than col- liding） two metal droplets with identical size together in NaOH solution, oscillating coalescence would happen which runs just like a spring after the interface ruptures and forms capillary waves. For two metal droplets with evidently different diameters, the coalescence induces rather unusual ejection phenomena. The large droplet would swallow part of the small one and then eject another much smaller droplet. Such phenomenon provides a direct evidence for the existence of electrical double layer on metal droplets. The dynamics fluid impacting behaviors were quantified through processing images from the recorded movies, and the basic differences between the liquid metal droplets and that of water droplets were clar- ified. Theoretical mechanisms related to the events were preliminarily interpreted. The present finding refreshes the basic understanding of the liquid metal droplets, which also suggests potential values of applying such fundamental effects to characterize viscosity, surface tension, electrical double layer of the metal fluids and droplet formations.

关键词： Liquid metal spring Oscillatingcoalescence Droplet ejection Electrical doublelayer High-speed image experiment

High silicon enhances rice plant resistance to brown pianthopper

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High silicon enhances rice plant resistance to brown piantho...

第十三届全国植物基因组学大会

作者： wenqiang He,fang Liu,Yongfu Qiu~*,Rongbai Li~* State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Agricultural College,Guangxi University,Nanning,530005,China

Silicon plays a significant role in the resistance of rice plants to multiple stresses including diseases and ***,there has been little research on the effect of silicon application on the resistance to brown planthopper(BPH),Nilaparvata lugens Stal,(Homoptera:Delphacidae),in rice(Oryza sativa L).In the present study,

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单次激发磁共振胰胆管造影的临床应用

实用放射学杂志 2000年第1期16卷 12-14页

作者：方文强,江浩,张华,张蓓,潘自来上海第二医科大学附属瑞金医院放射科上海第二医科大学附属瑞金医院放射科上海第二医科大学附属瑞金医院放射科上海第二医科大学附属瑞金医院放射科上海第二医科大学附属瑞金医院放射科

目的：探讨单次激发快速自旋回波（ＳＳＦＳＥ）序列磁共振胰胆管造影的临床应用价值。方法：采用屏气、重Ｔ２加权、单次激发快速自旋回波（ＳＳＦＳＥ）序列、二维多平面成像技术做ＭＲ胰胆管造影８０例，其中３０例为正常者，５... 详细信息

目的：探讨单次激发快速自旋回波（ＳＳＦＳＥ）序列磁共振胰胆管造影的临床应用价值。方法：采用屏气、重Ｔ２加权、单次激发快速自旋回波（ＳＳＦＳＥ）序列、二维多平面成像技术做ＭＲ胰胆管造影８０例，其中３０例为正常者，５０例疑为胰胆系疾病的病人。结果：３０例正常者的胰胆管和胆囊的显示率为１００％。５０例疑为胰胆系疾病的病人，ＭＲＣＰ良好显示胰胆系病变部位及扩张的胰胆管，结合腹部常规ＭＲ，获得理想的综合影像诊断。结论：ＳＳＦＳＥ序列ＭＲＣＰ是一种安全简便、无创伤性的胰胆管影像学检查新技术，快速成像，图像清晰，具有重要的临床应用价值。

关键词：磁共振成像胰管胆管

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三功能共晶溶剂添加剂用于高性能锂金属电池

Science Bulletin 2024年第11期69卷 1686-1696页

作者：方文强温祖鑫王锋霖陈龙张颖张宁刘小鹤陈根 School of Materials Science and Engineering Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan ProvinceCentral South UniversityChangsha 410083China Zhongyuan Critical Metals Laboratory School of Chemical EngineeringZhengzhou UniversityZhengzhou 450001China

Rational carbonate electrolyte chemistry is critical for the development of high-voltage lithium metal batteries(LMBs).However,the implementation of traditional carbonate electrolyte is greatly hindered by the generation of an unstable electrode interphase and corrosive by-product(HF).Herein,we propose a triple-function eutectic solvent additive of N-methylacetamide(NmAc)with LiNO_(3) to enhance the stability and compatibility of carbonate ***,the addition of NmAc significantly improves the solubility of LiNO_(3) in carbonate electrolyte by forming an eutectic pair,which regulates the Li~+solvation structure and leads to dense and homogenous Li ***,the hydrolysis of acidic PF_5 is effectively alleviated due to the strong complexation of NmAc with PF_5,thus reducing the generation of corrosive *** addition,the optimized cathode electrolyte interphase layer decreases the structural degradation and transition metal ***,Li||LiNi_(0.6)Co_(0.2)Mn_(0.2)O_(2)(NCM622)cells with the designed electrolyte deliver superior long-term cycle reversibility and excellent rate *** study unveils the rationale for incorporating eutectic solvent additives within carbonate electrolytes,which significantly contribute to the advancement of their practical application for high-voltage LMBs.

关键词： Eutectic solvent additive Solvation structure Interfacial chemistry PF_5 capturer Lithium metal battery

副鼻窦内肿瘤致异位促肾上腺皮质激素综合征二例及文献复习

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中华放射学杂志 2019年第1期53卷 69-72页

作者：潘召城宋琦芮炜玮徐学勤严福华方文强上海交通大学医学院附属瑞金医院放射科 200025 上海交通大学医学院附属瑞金医院病理科 200025

笔者搜集2例副鼻窦内肿瘤导致的异位促肾上腺皮质激素综合征(EAS)患者,病理诊断分别为嗅神经母细胞瘤和异位垂体腺瘤。例1患者头颅及垂体MR增强检查示筛窦内不规则占位,T1WI低信号、T2WI稍高信号,增强后呈不均匀强化;蝶窦内见不强化的T... 详细信息

笔者搜集2例副鼻窦内肿瘤导致的异位促肾上腺皮质激素综合征(EAS)患者,病理诊断分别为嗅神经母细胞瘤和异位垂体腺瘤。例1患者头颅及垂体MR增强检查示筛窦内不规则占位,T1WI低信号、T2WI稍高信号,增强后呈不均匀强化;蝶窦内见不强化的T1WI高信号液体伴分层现象,T2WI呈混杂低信号,考虑为黏液物质潴留;斜坡受压骨质吸收;CT示双侧肾上腺增生改变。例2患者头颅及垂体MR增强检查示蝶窦内占位,T1WI等信号,T2WI不均匀高信号,扩散轻度受限,增强后明显不均匀强化,病灶与垂体分界清晰,斜坡受压骨质吸收改变;CT示双侧肾上腺呈增生改变。该病影像检查的意义主要在于发现病变及评估肿瘤的侵犯范围。

关键词：鼻窦肿瘤磁共振成像

高校教学仪器设备维修管理内控建设的探索与实践

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实验技术与管理 2022年第3期39卷 264-267,272页

作者：徐文方文强陈一兵李江张惠芹扬州大学实验室与设备管理处江苏扬州225009

高校教学仪器设备维修管理本质上属于经济业务活动,因其经济属性,该文提出引入财政领域的内控建设帮助解决维修管理工作存在的问题。结合该校实践,探讨并实践了教学仪器设备维修管理的预算编制、审核审批、采购、合同订立、验收、审计... 详细信息

高校教学仪器设备维修管理本质上属于经济业务活动,因其经济属性,该文提出引入财政领域的内控建设帮助解决维修管理工作存在的问题。结合该校实践,探讨并实践了教学仪器设备维修管理的预算编制、审核审批、采购、合同订立、验收、审计监督等全流程内控改革。实践证明,通过开展内控建设,可提高教学仪器设备的维修和使用效益。

关键词：内控建设仪器设备维修全流程管理

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Characteristics of gut microbiota dysbiosis in patients with colorectal polyps

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World Journal of Gastrointestinal Oncology 2025年第1期17卷 13-21页

作者： Xian-Rong Wu Xiao-Hong He Yong-fang Xie School of Life Health Information Science and Engineering Chongqing Post and Communications UniversityChongqing 400065China

This editorial,inspired by a recent study published in the World Journal of Gastrointestinal Oncology,covers the research findings on microbiota changes in various *** recurrent colorectal polyps,the abundances of Klebsiella,Parvimonas,and Clostridium increase,while those of Bifidobacterium and Lactoba-cillus *** dysbiosis may promote the formation and recurrence of *** microbial changes have also been observed in colorectal cancer,inflammatory bowel disease,autism spectrum disorder,and metabolic syndrome,indicating the role of increased pathogens and decreased probiotics in these *** the gut microbiota,particularly by increasing probiotic levels,may help prevent polyp recurrence and promote gut *** microbial intervention strategy holds promise as an adjunctive treatment for patients with colorectal polyps.

关键词： Recurrent colorectal polyps Gut microbiota dysbiosis Klebsiella Probiotics Intestinal inflammation Microbial intervention strategy

氧化石墨烯诱导高织构Mo掺杂Bi_(2)Te_(3)薄膜的热电性能

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浙江师范大学学报（自然科学版） 2022年第3期45卷 284-290页

作者：方文强朱文艳李康银斯剑霄浙江师范大学物理与电子信息工程学院浙江金华321004

为提高Bi_(2)Te_(3)薄膜的热电性能,采用磁控溅射技术在旋涂有氧化石墨烯(GO)缓冲层的玻璃衬底上共溅制备的Mo掺杂的n型Bi_(2)Te_(3)薄膜.通过对其形貌、组成及热电特性的表征,研究了(00 l)择优取向的不同Mo溅射功率(P=0,15,25,35,45 W)... 详细信息

为提高Bi_(2)Te_(3)薄膜的热电性能,采用磁控溅射技术在旋涂有氧化石墨烯(GO)缓冲层的玻璃衬底上共溅制备的Mo掺杂的n型Bi_(2)Te_(3)薄膜.通过对其形貌、组成及热电特性的表征,研究了(00 l)择优取向的不同Mo溅射功率(P=0,15,25,35,45 W)对Bi_(2)Te_(3)的热电性能的影响.结果表明:GO缓冲层的存在可以实现高度取向(00 l)的Bi_(2)Te_(3)薄膜制备,室温下薄膜迁移率为48 cm^(2)·V^(-1)·s^(-1);Mo掺杂有效提高了Bi_(2)Te_(3)薄膜的载流子浓度,使得P_(Mo)=25 W时的Bi_(2)Te_(3)薄膜在室温下最大电导率为944S·cm^(-1),其在400 K时最大功率因子达到2074.6μW·m^(-1)·K^(-2).表明氧化石墨烯诱导高织构Mo掺杂可以优化n型Bi_(2)Te_(3)薄膜的热电性能.

关键词： Bi_(2)Te_(3)薄膜氧化石墨烯取向 Mo掺杂热电性能

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肾上腺弥漫性增生的CT诊断

中国医学计算机成像杂志 2005年第4期11卷 262-264页

作者：方文强陈克敏徐学勤上海第二医科大学附属瑞金医院放射科 200025

目的:探讨肾上腺弥漫性增生的CT诊断标准。材料和方法:回顾性分析临床及实验室检查诊断的50例弥漫性肾上腺增生患者肾上腺的CT表现,并测量其体部及肢体的最大厚度,将其与26例正常人的肾上腺测量值进行比较。结果:肾上腺弥漫性增生组与... 详细信息

目的:探讨肾上腺弥漫性增生的CT诊断标准。材料和方法:回顾性分析临床及实验室检查诊断的50例弥漫性肾上腺增生患者肾上腺的CT表现,并测量其体部及肢体的最大厚度,将其与26例正常人的肾上腺测量值进行比较。结果:肾上腺弥漫性增生组与正常对照组在双侧肾上腺体部及肢体最大厚度方面存在显著统计学差异(P<0.05);以“肢体厚度大于5mm”作为诊断标准不具有明显优越性;以左侧肾上腺体部最大厚度作为诊断标准所得的ROC曲线下面积最大(0.923)。结论:“左侧肾上腺体部最大厚度大于0.795cm”可能可作为肾上腺弥漫性增生的定量诊断标准。

关键词：肾上腺弥漫性增生 CT 诊断肾上腺增生 CT诊断弥漫性 ROC曲线下面积回顾性分析统计学差异正常对照组