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翼管神经切断术的原理与实践

中华耳鼻咽喉头颈外科杂志 2024年第1期59卷 51-56页

作者：赵长青孙希才万玉柱叶菁谭国林刘剑锋王艳杰程冯丽安云芳山西医科大学第二医院耳鼻咽喉头颈外科太原030000 复旦大学附属眼耳鼻喉科医院耳鼻咽喉科上海200031 山东大学附属山东省耳鼻喉医院耳鼻咽喉头颈外科济南250022 南昌大学附属第一医院耳鼻咽喉头颈外科南昌330006 中南大学湘雅三医院耳鼻咽喉头颈外科长沙410013 中日友好医院耳鼻咽喉科北京100029

借助传统的神经环路可以实现神经-免疫的双向调控,这一发现为重新认识翼管神经切断术(vidian neurectomy,VN)提供了理论依据。本文就VN的发展历史、神经-免疫相互作用的原理、VN的应用解剖以及内镜术式进行重点介绍,旨在为临床展现一幅... 详细信息

借助传统的神经环路可以实现神经-免疫的双向调控,这一发现为重新认识翼管神经切断术(vidian neurectomy,VN)提供了理论依据。本文就VN的发展历史、神经-免疫相互作用的原理、VN的应用解剖以及内镜术式进行重点介绍,旨在为临床展现一幅较为全面的从理论到实践的VN画图。

关键词：变应性鼻炎神经免疫翼管神经切断术

Synthesis of boron-doped diamond with laser heated diamond anvil cell

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Chinese Science Bulletin 2011年第13期56卷 1336-1339页

作者： ZHANG WeiWei CHEN LiangChen JIN changqing WANG XueJin LIU YuYing LIU jing College of Science China Agricultural University Beijing 100083 China Institute of Physics Chinese Academy of Sciences Beijing 100080 China Institute of High Energy Physics Chinese Academy of Sciences Beijing 100039 China

Boron-doped diamond has been synthesized from graphite mixed with different ratio of B 4 C at high pressure high temperature (HPHT) using laser heated diamond anvil *** starting composition was transformed to diamond compound at pressure ～9 GPa,2300-2400 K as indicated by the in-situ X-ray diffraction pattern with synchrotron radiation *** spectrum of the recovered specimen from HPHT state confirmed that boron has been doped into diamond lattice.

关键词：金刚石压腔掺硼金刚石金刚石合成激光加热原位X射线衍射拉曼光谱仪高温高压同步辐射光源

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耐FR3天然酯绝缘油的橡胶密封材料研究

橡胶科技 2024年第6期22卷 319-322页

作者：冀建波冯婧叶长青安静盛国辉娄楼岳炯西安向阳航天材料股份有限公司陕西西安710065

以矿物绝缘油变压器密封材料常用橡胶[丙烯酸酯橡胶(ACM)、氟硅橡胶(FVMQ)、氢化丁腈橡胶(HNBR)、氟橡胶(FKM)和氯丁橡胶(CR)]为研究对象,通过耐油性试验及相容性试验探究适用于FR3天然酯绝缘油密封的橡胶,并对适用橡胶的性能进行研究... 详细信息

以矿物绝缘油变压器密封材料常用橡胶[丙烯酸酯橡胶(ACM)、氟硅橡胶(FVMQ)、氢化丁腈橡胶(HNBR)、氟橡胶(FKM)和氯丁橡胶(CR)]为研究对象,通过耐油性试验及相容性试验探究适用于FR3天然酯绝缘油密封的橡胶,并对适用橡胶的性能进行研究。结果表明:CR不适宜作为FR3天然酯绝缘油密封材料使用;ACM,FVMQ,HNBR和FKM的耐FR3天然酯绝缘油性能良好,可作为FR3天然酯绝缘油密封材料长期使用,其中FVMQ的综合性能最优。

关键词：密封材料橡胶天然酯绝缘油相容性耐油性能

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达芬奇机器人与腹腔镜手术行右半结肠切除术安全性及有效性的Meta分析

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腹部外科 2020年第1期33卷 28-33页

作者：吴昊商亮方振杜丰颖刘洋靖昌庆石玉龙李乐平山东大学附属省立医院胃肠外科山东济南250021

目的探讨达芬奇机器人与腹腔镜手术在右半结肠切除术中的安全性及有效性。方法检索Embase、Medline、Web of Science、中国知网及万方等数据库中2009年12月至今发表的有关右半结肠切除术的相关文献,使用Jadad评分及NOS评分评价文献质量... 详细信息

目的探讨达芬奇机器人与腹腔镜手术在右半结肠切除术中的安全性及有效性。方法检索Embase、Medline、Web of Science、中国知网及万方等数据库中2009年12月至今发表的有关右半结肠切除术的相关文献,使用Jadad评分及NOS评分评价文献质量,并使用Revman(5.3版)软件进行Meta分析。结果经过筛选纳入21篇文献,共计样本11648例,其中机器人组1523例,腹腔镜组10125例。Meta分析显示:在手术相关指标上,机器人组相比腹腔镜组手术时间更长[WMD=40.37,95%CI(28.88,51.86),P<0.01],但淋巴结清扫数更多[WMD=2.01,95%CI(0.59,3.44),P<0.01],中转开腹率更低[OR=0.31,95%CI(0.11,0.86),P=0.02],二者术中出血量无显著差异。在围手术期相关指标上,机器人组住院时间更短[WMD=-0.80,95%CI(-1.21,-0.39),P<0.01],肠道恢复更快[WMD=-0.43,95%CI(-0.70,-0.15),P<0.01],但费用比腹腔镜组显著提高。二者术后死亡率及并发症发生率差异无统计学意义。但机器人组伤口感染率[OR=0.66,95%CI(0.45,0.97),P=0.03]及吻合口瘘发生率[OR=0.37,95%CI(0.19,0.71),P<0.01]更低。结论达芬奇机器人行右半结肠切除术尽管手术时间较长,但术后恢复更快,淋巴清扫更彻底,伤口感染及吻合口瘘发生率更低。术后生活质量及预后资料较少,仍需开展高质量、大样本、多中心随机对照研究进行评价。

关键词：机器人手术结肠癌右半结肠切除术腹腔镜 Meta分析

Expression of human cytomegalovirus components in the brain tissues of patients with Rasmussen＇s encephalitis

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Virologica Sinica 2017年第2期32卷 115-121页

作者： Yao Zhang Yisong Wang Sichang Chen Shuai Chen Yuguang Guan changqing Liu Tianfu Li Guoming Luan jing An Department of Neurosurgery Sanbo Brain Hospital Capital Medical University Beijing100093 China Department of Microbiology School of Basic Medical Science Capital Medical University Beijing 100069 China Beijing Key Laboratory of Epilepsy Beijing100093China Center of Epilepsy Beijing Institute for Brain Disorders Beijing100093 China

Rasmussen's encephalitis(RE) is a rare and severe progressive epileptic syndrome with unknown etiology. Infection by viruses, including human cytomegalovirus(HCMV), has been speculated to be a potential trigger for RE. However, no viral antigens have been detected in the brains of patients with RE; thus, a possible clinical linkage between viral infections and RE has not been firmly established. In this study, we evaluated the expression of HCMV pp65 antigen in brain sections from 26 patients with RE and 20 non-RE patients by immunohistochemistry and in situ hybridization, and assessed the associations between HCMV infection and clinical *** expression of HCMV pp65 protein and DNA was observed in 88.5%(23/26) and 69.2%(18/26) of RE cases, respectively. In the non-RE group, HCMV pp65 antigen was detected only in two cases(10%), both of which were negative for DNA staining. Additionally, the intensity of HCMV pp65 staining was correlated with a shorter duration of the prodromal stage, younger age of seizure onset, and more severe unilateral cortical atrophy. Elevated expression of HCMV pp65 was observed in RE brain tissue and was correlated with the clinical features of RE disease. In summary, our results suggested that HCMV infection may be involved in the occurrence and progression of RE disease. Thus, further studies are needed to determine whether early treatment with anti-HCMV antibodies could modulate the course of RE.

关键词： Rasmussen’s encephalitis human cytomegalovirus(HCMV) pp65 epilepsy

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电力接地网材质对引下线腐蚀特性的影响研究

电瓷避雷器 2024年第1期 93-102页

作者：黄涛沈文韬谢洪平安韵竹杜长青井栋国网江苏省电力工程咨询有限公司南京210000 山东理工大学电气与电子工程学院山东淄博255000

电力杆塔接地引下线存在较为严重的腐蚀问题,为了对比分析现行金属接地体和石墨接地体对杆塔钢引下线的腐蚀影响,理论分析了钢引下线土壤腐蚀机理并基于此建立钢引下线接地体和钢引下线-石墨接地体的土壤电化学腐蚀模型,对比分析了接地... 详细信息

电力杆塔接地引下线存在较为严重的腐蚀问题,为了对比分析现行金属接地体和石墨接地体对杆塔钢引下线的腐蚀影响,理论分析了钢引下线土壤腐蚀机理并基于此建立钢引下线接地体和钢引下线-石墨接地体的土壤电化学腐蚀模型,对比分析了接地体材质、土壤孔隙度、埋深对引下线工作电极电位、局部土壤氧浓差、腐蚀电流密度等腐蚀过程参数的影响。计算结果表明:引下线腐蚀速率先随土壤湿度的增大而增大,当达到一个饱和值后,腐蚀速率反而降低;钢引下线在埋深0.31~0.41 m位置处引下线氧浓差腐蚀比埋深为0.5 m时更严重,而引下线-石墨接地体连接时,埋深越大氧浓差腐蚀越强烈;当引下线与石墨接地体连接时,引下线的局部氧还原电流密度和铁腐蚀电流密度越大,石墨接地体与引下线构成电偶腐蚀,加速了深地层引下线连接柔性石墨接地体部分的腐蚀,使连接处比地表引下线的氧浓差腐蚀更加严重。

关键词：接地网接地材料引下线腐蚀孔隙度

Structural stability and Raman scattering of CoPt and NiPt hollow nanospheres under high pressure

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Progress in Natural Science:Materials International 2013年第4期23卷 382-387页

作者： Xi Shen Qian Sun Jie Zhu Yuan Yao jing Liu changqing Jin Richeng Yu Rongming Wang Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of Sciences Department of Physics Beihang University Institute of High Energy Physics Chinese Academy of Sciences

This paper reports that the high pressure in situ angle dispersive x-ray diffraction and Raman scattering studies on CoPt and NiPt hollow nanospheres are performed by means of a diamond anvil cell for generating external pressure at room *** crystal structures of both the CoPt and NiP hollow nanospheres keep stable up to about 41 ***,it shows that the hollow nanospheres possess higher bulk moduli than their bulk counterparts by using the frst-principles density functional theory.

关键词： Hollow nanosphere Angle dispersive x-ray diffraction High pressure Raman Density functional theory

渤海湾盆地新生代玄武岩成因——地球化学和Sr-Nd-Hf-Pb同位素证据

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吉林大学学报（地球科学版） 2024年第2期54卷 531-545页

作者：孙晶蒋蕾茵侯文油气资源与探测国家重点实验室(中国石油大学(北京)) 北京102249 中国石油大学(北京)地球科学学院北京102249 中国石油天然气股份有限公司长庆油田分公司第七采油厂西安710200

渤海湾盆地新生代玄武岩是华北克拉通东北部新生代玄武岩的重要组成部分,由于该地区的玄武岩在地表出露较少,之前的研究程度一直很低。本次研究在辽河油田选取了钻孔岩心样品,通过岩石学、地球化学、Sr-Nd-Hf-Pb同位素方法进行分析,探... 详细信息

渤海湾盆地新生代玄武岩是华北克拉通东北部新生代玄武岩的重要组成部分,由于该地区的玄武岩在地表出露较少,之前的研究程度一直很低。本次研究在辽河油田选取了钻孔岩心样品,通过岩石学、地球化学、Sr-Nd-Hf-Pb同位素方法进行分析,探讨了新生代玄武岩的成因。结果表明:渤海湾盆地新生代玄武岩主要为玄武岩和粗面玄武岩,玄武岩的w(SiO_(2))为49.08%~50.70%,w(MgO)为2.63%~5.80%,具有明显的轻重稀土元素分馏,(La/Yb)_(N)和(Dy/Yb)_(N)值分别为7.96~11.61和1.71~1.84,Eu和Ce没有明显的负异常,高场强元素(HFSE)和大离子亲石元素(LILE)富集,具有明显的Nb、Ta和Sr正异常;全岩的Sr、Nd、Hf同位素比值(^(87)Sr/^(86)Sr)i值为0.704622~0.706581、ε_(Nd)(t)值为1.1~1.9和ε_(Hf)(t)值为1.6~4.6,(^(206)Pb/^(204)Pb)_(i)、(^(207)Pb/^(204)Pb)_(i)和(^(208)Pb)/^(204)Pb)_(i)值分别为17.2577~17.4099、15.2015~15.3354和37.1858~37.9129,显示渤海湾盆地新生代玄武岩具有洋岛玄武岩(OIB)的地球化学特征和同位素组成。综合本文研究,表明渤海湾盆地新生代玄武岩是软流圈地幔低程度部分熔融的结果,且源区中地壳混染和分离结晶作用不显著。

关键词：新生代玄武岩地球化学地幔渤海湾盆地

The RhHB1/RhLOX4 module affects the dehydration tolerance of rose flowers(Rosa hybrida)by fine-tuning jasmonic acid levels

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Horticulture Research 2020年第1期7卷 1852-1864页

作者： Youwei Fan Jitao Liu jing Zou Xiangyu Zhang Liwei Jiang Kun Liu Peitao Lü Junping Gao changqing Zhang Department of Ornamental Horticulture College of HorticultureChina Agricultural UniversityBeijing 100193China Crop Research Institute Guangdong Academy of Agricultural SciencesGuangdong Provincial Key Laboratory of Crop Genetic ImprovementGuangzhouGuangdong 510642China

Phytohormones are key factors in plant responsiveness to abiotic and biotic stresses,and maintaining hormone homeostasis is critically important during stress *** rose(Rosa hybrida)flowers experience dehydration stress during postharvest handling,and jasmonic acid(JA)levels change as a result of this ***,how JA is involved in dehydration tolerance remains *** investigated the functions of the JA-and dehydration-induced RhHB1 gene,which encodes a homeodomain-leucine zipper Iγ-clade transcription factor,in rose *** RhHB1 decreased petal dehydration tolerance and resulted in a persistent increase in JA-Ile content and reduced dehydration *** elevated JA-Ile level had a detrimental effect on rose petal dehydration ***1 was shown to lower the transient induction of JA-Ile accumulation in response to *** addition to transcriptomic data,we obtained evidence that RhHB1 suppresses the expression of the lipoxygenase 4(RhLOX4)gene by directly binding to its promoter both in vivo and in *** propose that increased JA-Ile levels weaken the capacity for osmotic adjustment in petal cells,resulting in reduced dehydration *** conclusion,a JA feedback loop mediated by an RhHB1/RhLOX4 regulatory module provides dehydration tolerance by fine-tuning bioactive JA levels in dehydrated flowers.

关键词： flowers rose conclusion