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冷冻球囊消融术治疗房颤疗效观察

陕西医学杂志 2017年第6期46卷 781-783页

作者：王超君贺海蓉孙超峰西安交通大学第一附属医院心内科西安710061 西安交通大学第一附属医院临床研究中心西安710061

目的:探讨冷冻球囊消融术治疗房颤的安全性和有效性。方法:房颤患者91例,23例采用冷冻球囊消融术治疗(球囊组),68例采用药物治疗(药物组)。以手术中肺静脉与心房电隔离(PVI)终止房颤发作为急性治疗成功指标,以出院后12个月是否复发评价... 详细信息

目的:探讨冷冻球囊消融术治疗房颤的安全性和有效性。方法:房颤患者91例,23例采用冷冻球囊消融术治疗(球囊组),68例采用药物治疗(药物组)。以手术中肺静脉与心房电隔离(PVI)终止房颤发作为急性治疗成功指标,以出院后12个月是否复发评价远期治疗成功率,同时比较两组治疗的安全性。结果:球囊组患者中,经冷冻消融,98.8%的肺静脉实现PVI,手术均终止房颤发作。出院后12个月,冷冻球囊组治疗成功率为66.7%(14/21,2例失访),药物组治疗成功率为35.3%(24/68),两组比较差异有统计学意义(χ~2=6.455,P<0.01)。同时球囊组患者症状明显减轻,生活质量提高。安全性方面,球囊组也优于药物治疗组。结论:应用冷冻球囊消融技术治疗房颤的有效性和安全性均优于传统药物治疗,为房颤的治疗提供了新思路。

关键词：心房颤动/治疗冷冻外科手术/方法 @冷冻球囊消融术

TRANSMISSION ELECTRON MICROSCOPY INVESTIGATIONS OF LOW-PRESSURE CVD GROWTh AND STRAIN RELAXATION OF Ge ISLANDS ON Si(110)

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Acta Metallurgica Sinica(English Letters) 2005年第3期18卷 427-432页

作者： E.Spiecker L.Zhang h.M.Lu W.Jaeger L.Vescan MicroanalysisofMaterials FacultyofEngineeringChrisfian-Albrechts-UniversityKielKaiserstraβe224143KielGermany InstituteofThinFilmsandInterfaces ResearchCenterJiilichGmbH52425JiilichGermany

Shapes, dimensions, arrangements and the microstructure of self-assembled island s fabricated by low-pressure chemical vapour deposition (LPCVD) of Ge at 700℃ o nto Si(110) substrates have been investigated for different nominal Ge coverage by transmission electron microscopy (TEM) of plan-view and cross-section specime ns and have been compared with photoluminescence (PL) measurements of Si-capped layer samples. The transition from the 2-dimensional layer to the 3-dimensional island growth mode takes place for a Ge deposition of nominally less than 2 mono layers. Upon this transition, many coherent islands and few larger islands with extended defects are observed. The coherent islands possess a dome-like shape an d lateral sizes up to 130nm. Photoluminescence spectra show island-related peaks whose energy positions are shifted towards lower energy with higher Ge coverage .

关键词： Si-Ge heteroepitaxy surface transmission electron microscopy Nanostructure

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高分辨力CT测量人工镫骨的准确性分析

国际医学放射学杂志 2010年第3期 291-291页

作者：刘静红 A. Bozzato T. Struffert V. hertel h. iro J. hornung Department of Otorhinolaryngology Head & Neck Surgery University of Erlangen-Nuremberg FAU Medical School

摘要目的严重的耳蜗前庭病是镫骨成形术的并发症之一,CT可用于评价活塞型人工镫骨在前庭内的植入深度,但现代CT设备

关键词： 64排螺旋CT 镫骨成形术影像质量感音神经性聋眩晕

腮腺肿瘤弹性声像图诊断特异性表现类型的初步研究

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国际医学放射学杂志 2012年第4期 392-392页

作者： N. Klintworth K. Mantsopoulos J. Zenk G. Psychogios h. iro A. Bozzato 唐光健 Department of Otorhinolaryngology Head and Neck Surgery University of Erlangen -NurembergWaldstrasse 1 91054 Erlangen Germany

摘要目的研究B超与弹性声像图鉴别腮腺良性与恶性肿瘤的能力,确定多形性腺瘤和Warthin瘤弹性声像图的特征。方法57例腮腺肿瘤病人接受了B超与弹性声像图检查,由2名有经验的超声医生回顾性分析采集到的数据,并确定良性与恶性病变的声像... 详细信息

摘要目的研究B超与弹性声像图鉴别腮腺良性与恶性肿瘤的能力,确定多形性腺瘤和Warthin瘤弹性声像图的特征。方法57例腮腺肿瘤病人接受了B超与弹性声像图检查,由2名有经验的超声医生回顾性分析采集到的数据,并确定良性与恶性病变的声像图特异性表现,分析确定声像图表现类型

关键词：弹性声像图超声腮腺腮腺肿瘤多形性腺瘤

A high-endurance 96-Kbit FeRAM Embedded in a Smart Card LSI Using Ir/iro2/PZT(MOCVD)/Ir Ferroelectric Capacitors

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A High-endurance 96-Kbit FeRAM Embedded in a Smart Card LSI ...

INVESTIGATION OF SURFACE MORPhOLOGY, STRUCTURE AND ELECTROCATALYTIC PROPERTIES FOR O_2 EVOLUTION OF TITANIUM BASED iro_2+Ta_2O_5 COATINGS

2001 6～(th) International Conference on Solid-State and Integrated Circuit Technology

作者： h.Mori N.Tanabe A.Seike h.Takeuchi J.Yamada T.Miwa h.Koike Y.Maejima T.Tatsumi S.Kobayashi T.Nakura h.Sugiyama N.Kasai T.hase h.hada h.Toyoshima ULSI Device Development Division Microcomputer Division System Devices and Fundamental Research

We have developed a logic-embedded 96-Kbit FeRAMmacro that has low-voltage operation and high-endurancefeatures for smart card *** smart card LSIwas fabricated using a 0.35 μm-standard CMOS processwith 3-level metallization and CMVP *** operation of the chip was confirmed atvoltages from 2.7 to 5.5 V with 2.5 Mhz clock *** Ir-based top and bottom electrodes,the fatigueendurance of the FeRAM was improved,which wasconfimed in burn-in *** failed bits were observed ataccelerated conditions with 5.5 V and 150℃ after 10fatigue cycles.

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Acta Metallurgica Sinica(English Letters) 2000年第3期13卷 849-856页

作者： J.M hu J.X. Wu h.M Meng YR. Zhu D.B. Sun and D.J. Yang(Beijing Corrosion and Protection Center, Open Laboratory of Corrosion, Erosion and Surface Technology,University of Science and Technology Beijing, Beijing 100083, China) Univ of Science and Technology Beijing Beijing China

Titanium based iro2 +Ta2O5 oxide anodes with different compositions and pyrolysis temperatures were prepared by termodecompoisition method. By using X-ray diffraction (XRD), the structure and texture coefficient of the coatings, TC(hkl), of iro2 rutile crystal have been tested. It showed that, the crystallization processes of iro2 and Ta2O5 in xiro2 +(100-x) Ta2 O5 (x is in mol%) films affected and confined each *** the mixed system, iro2 rutile phase existed as a solid solution with Ta, and attained the maximum solubility when x=70mol%, i.e. for the coating of 70% iro2 +*** the coatings of low iridium content or at low preparing tem pemture, (110) and (101) pwtered orientations were dominant. however, preferred growth of iro2 weakened with increasing either iridium content or temperature. Three typical surface morphologies were observed by using scanning electron tnicroscopy(SEM). The crystallite size of the mixed oxide coatings were finest for the the film of 70%iro2 +30%Ta2O5,and decreased with the pyrolysis tempemture. As the results of the finest crystallite segregating on sudece and the maxitnum solid solubility of Ir and Ta component in deposits, the coatings with the composition of 70%iro2 +Ta2O5 prepared at 450℃ presented the mdrimutn electrocatalgtic activitg for O2 evolution in 0. 5M h2SO4 *** to 550℃, Ti base suffered to oxidation resulting in decreasing anode conductivity,therefore, coatings performed a low activity.

关键词： titanium based coating anode iridium oxide tantalum oxide,solid solution crystallite orientation electrocatalytic activity

EFFECT OF SnO_2 ADDITION ON ThE SERVICE LIFE AND ELECTROChEMICAL PROPERTIES OF Ti/iro_2,+Ta_2O_5 ANODES IN PhENOLSULFONIC ACID SOLUTION

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Acta Metallurgica Sinica(English Letters) 2000年第4期13卷 937-943页

作者： J.M. hu h.M. Meng D.B. Sun S.J. Zhang J.X. Wu and D.J. Yang Beijing Corrosion and Protection Center, Open Laboratory of Corrosion, Erosion and Surface Technology, University of Science and Technology Beijing, Beijing 100083, China Beijing Univ of Science and Technology Beijing China

Service life of two different oxide anodes in phenolsulfonic acid (PSA) solution was investigated by accelerated electrolysis. The durability of Ti/iro_2+Ta_2 O_5 anode increased by the addition of SnO_2 in the mixed oxides. The degradation mechanisms of Ti/iro_2+ Ta_2 O_5 and Ti/iro_2 +Ta_2 O_5 +SnO+2 anodes were different. It was shown from the observation of scanning electron microscopy (SEM) and the electrochcmical measurement that, the deactivation of Ti/iro_2 + Ta_2 O_5 anode was due to the build-up of an organic film on surface. The growth of the covered film on surface was restricted by addition of SnO_2, which resulted in increasing of the service life of anodes. The over-potential for oxygen evolution on Ti/iro_2 +Ta_2 O_5 electrode increased after doping SnO_2, and the intermediate products of PSA building-up on the surface was much more rapidly oxidized. Meanwhile, a certain part of the surface oxide deposit entered into the solution leading to loss of oxides, which resulted in degradation of Ti/iroO_2 + Ta_2 O_5 anode containing SnO_2 component.

关键词： metal oxide anode iro_2 + Ta_2 O_5 iro_2 + Ta_2 O_5 +SnO_2 phenolsulfonic acid degradation

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铂族金属氧化物的热稳定性及热膨胀行为

贵金属 1985年第3期 68-75页

作者： G.BAYER h.G.WIEDMANN 熊易芬昆明贵金属研究所

用热重法,差热分析法及 X—射线法研究不同粒度的钯、钌和铱粉末的氧化行为。在加热时生成的这些氧化物（PdO,RuO2和 iro2）,显示不同的热稳定性。用钯的氧化物测定分解温度与氧分压的关系。高温 X—射线研究证明,RuO2和 iro2的热膨胀... 详细信息

用热重法,差热分析法及 X—射线法研究不同粒度的钯、钌和铱粉末的氧化行为。在加热时生成的这些氧化物（PdO,RuO2和 iro2）,显示不同的热稳定性。用钯的氧化物测定分解温度与氧分压的关系。高温 X—射线研究证明,RuO2和 iro2的热膨胀具有强烈的各向异性。比较这些氧化物与具有金红石结构的其他氧化物的热膨胀行为。

关键词：热稳定性氧分压分解温度热力学性质铂系元素贵金属铂族金属

蛋白脂质蛋白1基因点突变导致复杂性痉挛性截瘫2的1例病例报道

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世界核心医学期刊文摘（神经病学分册） 2005年第2期1卷 48-49页

作者： Lee E.S. Moon h.K. Park Y.h. G.M. hobson 王晓琳 Department of Pediatrics Alfred I. DuPont Hosp. for Children Ne mours Children’s Clinic 19899 Wilmington DE United States

Pelizaeus Merzbacher disease (PMD) is a rare X linked dysmyelinating disorde r resulting from mutation of the proteolipid protein gene (PLP1). Clinical featu res of PMD include progressive psychomotor developmental delay, nystagmus, spast ic quadriplegia, dystonia, and cerebellar ataxia. PMD is clinically classified i nto three subtypes according to the severity of the disease: connatal, transitio nal, and classic forms. Patients with PMD have been identified with duplication, point mutations, and deletion of PLP1. In addition, spastic paraplegia 2 (SPG2) is allelic to PMD and typically caused by missense mutations in the second extr acellular domain of PLP1 or in the PLP1 specific region that is spliced out dur ing formation of the DM20 isoform. The authors describe a Korean boy diagnosed w ith SPG2 caused by a mutation that results in a Pro215Leu substitution in the se cond extracellular domain. Analysis of phenotypes resulting from mutations affec ting PLP1 has been valuable in identifying functional domains of this still inco mpletely understood major myelin protein. Null mutations and mutations affecting the PLP1 specific domain cause peripheral neuropathy. The PLP1 specific domai n also is important in the long term maintenance of axonal integrity. This pati ents phenotype was relatively mild, in contrast with other mutations at positi on 215 of PLP1 that cause severe PMD. One of these severe mutations is also a mi ssense mutation substituting an aliphatic residue, alanine, for proline. The dis tinct severity difference between the Pro215Leu and Pro215Ala substitutions sugg ests that this region of the protein is very sensitive to subtle structural chan ges and likely plays a critical role in PLP1 function.

关键词：蛋白脂质蛋白痉挛性截瘫基因点突变小脑共济失调肌张力障碍精神运动性髓鞘形成疾病严重程度胞外结构域眼球震颤